Patents by Inventor Changlin DU

Changlin DU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12661748
    Abstract: A high-speed nut rotation feed ball screw device includes a ball screw, a ball screw nut, a bearing unit, and a driving unit. The ball screw is fixed on a machine tool via a ball screw seat. The bearing unit includes an inner bearing fixing sleeve, an outer bearing fixing sleeve, and a bearing assembly. One end of the inner bearing fixing sleeve is fixedly connected to one end of the ball screw nut, and another end is fixedly connected to the driving unit. The ball screw nut is arranged on the ball screw. The driving unit includes a first pulley, a second pulley, a synchronous belt, and a driving motor. The first pulley is connected to the driving motor. The second pulley is sleeved on the ball screw and is connected to the inner bearing fixing sleeve. The first and second pulleys are connected via the synchronous belt.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: June 23, 2026
    Assignee: KEDE NUMERICAL CONTROL CO., LTD.
    Inventors: Yufeng Chen, Yanbo Hou, Changlin Du, Zhihui Ren, Mingshan Song, Chungang Cai, Chunhong Fan, Cuijuan Guo, Lianyang Wang, Yapeng Li, Xingjian He, Xinglin Gong, Wenlu Bao
  • Patent number: 12491592
    Abstract: The present invention provides a linkage swing head structure, including: a base, a drive mechanism and a spindle. The drive mechanism includes: a power mechanism, a connecting rod mechanism and a lead screw. An end of the spindle is fixed with a cutter, and the spindle is fixed on an end of the connecting rod mechanism. An end of the connecting rod mechanism fixed with the spindle is sleeved on a support bearing, the connecting rod mechanism can rotate around the support bearing, the support bearing is fixed on the base, and the other end of the connecting rod mechanism is movably connected to the lead screw. An output end of the power mechanism is connected to an end of the lead screw. The connecting rod mechanism adjusts the rotation angle of the spindle by sliding on the lead screw. The drive mechanism of the present invention is far away from the spindle, and the interference range thereof to the spindle is small.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: December 9, 2025
    Assignee: KEDE NUMERICAL CONTROL CO., LTD.
    Inventors: Hu Chen, Xin Deng, Hongtao Tang, Haibo Zhang, Yapeng Li, Cuijuan Guo, Changlin Du, Zhihong Wei, Hongwei Sun, Guoshuai Zhang, Xiangyuan Kong, Gang Xu, Dawei Wang, Dapeng Dong, Meng Lin, Pei Liu, Yanqing Bai, Feng Wang, Yinghua Li, Shaoyi Liu, Zidan Ju
  • Publication number: 20250332673
    Abstract: A machine tool changer includes a manipulator; a manipulator mounting arm; a manipulator mounting base; a manipulator rotation driving mechanism; a manipulator swinging driving mechanism; and a manipulator horizontal moving driving mechanism. The manipulator is mounted on the manipulator mounting arm, which is mounted with the manipulator rotation driving mechanism for driving the manipulator to rotate around a horizontal axis. The manipulator mounting arm is mounted on the manipulator mounting arm, which is mounted with a manipulator swinging driving mechanism for driving the manipulator mounting arm to swing around the horizontal axis. The manipulator mounting base is mounted with the manipulator horizontal moving driving mechanism for driving the manipulator mounting base to move horizontally to make the manipulator approach or move away from a machine tool spindle.
    Type: Application
    Filed: December 6, 2022
    Publication date: October 30, 2025
    Inventors: Yufeng CHEN, Zhihui REN, Yanbo HOU, Changlin DU, Mingshan SONG, Chunhong FAN, Cuijuan GUO, Lianyang WANG, Yapeng LI, Xingjian HE, Xinglin GONG, Wenlu BAO
  • Publication number: 20250262703
    Abstract: A motor rear-mounted direct drive spindle includes a spindle housing; a mandrel that is rotatably disposed within the spindle housing; a bearing; and a torque motor. The bearing includes a first bearing and a second bearing that provide radial and axial support to the mandrel, the first bearing and the second bearing are disposed inside the spindle housing, one end of the mandrel extends outside the spindle housing, the torque motor and the spindle housing are axially aligned, the torque motor includes a rotor and a stator, the end of the mandrel located outside the spindle housing is inserted into and connected to an end of the rotor, and the rotor is fixedly connected to the mandrel. In a motor rear-mounted direct drive spindle, a motor with the motor rear-mounted spindle is entirely exposed outside, thus distancing the motor from a mandrel.
    Type: Application
    Filed: December 6, 2022
    Publication date: August 21, 2025
    Inventors: Yufeng CHEN, Yanbo HOU, Changlin DU, Zhihui REN, Mingshan SONG, Chungang CAI, Chunhong FAN, Cuijuan GUO, Lianyang WANG, Yapeng LI, Xingjian HE, Xinglin GONG, Wenlu BAO
  • Patent number: 12377475
    Abstract: The present invention discloses a belt-transmission angle attachment head, including a housing, a power mechanism, a transmission mechanism and a spindle; the power mechanism and transmission mechanism are arranged in the housing; the power mechanism includes a servo motor and a reducer, the servo motor is connected to the reducer, and an input shaft of the reducer is vertically arranged with respect to an output shaft of the reducer; the transmission mechanism includes a driving wheel, a transmission belt and a driven wheel, and the driving wheel is mounted on the output shaft of the reducer; a side of the spindle is mounted on the housing via a rotating shaft, an end of the rotating shaft away from the spindle is mounted with the driven wheel, the driving wheel and the driven wheel are connected via the transmission belt, and the spindle and the power mechanism are located on the same side of the transmission mechanism.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: August 5, 2025
    Assignee: KEDE NUMERICAL CONTROL CO., LTD.
    Inventors: Hu Chen, Xin Deng, Changlin Du, Cuijuan Guo, Yapeng Li, Haibo Zhang, Zhihong Wei, Hongwei Sun, Guoshuai Zhang, Mingshan Song
  • Publication number: 20250235966
    Abstract: A tool holder locking sleeve includes a tool sleeve; a pulling claw; an elastic component; and a pin, one end of a tool holder accommodating cavity inside the tool sleeve is provided with a tool holder installation opening, and another end is provided with a pulling claw installation portion; a tool holder clamping portion of the pulling claw is provided with a tool holder clamping surface, the pulling claw is hinged on a pulling claw installation portion, the elastic component connects the pulling claw and the tool sleeve, after the tool holder is inserted into the tool holder accommodating cavity, the pulling claw is driven by the elastic component so that the tool holder clamping portion is engaged into the tool holder to engage the clamping surface of the tool holder with the inner diameter of the tool holder.
    Type: Application
    Filed: December 6, 2022
    Publication date: July 24, 2025
    Inventors: Yufeng CHEN, Changlin DU, Zhihui REN, Mingshan SONG, Chungang CAI, Chunhong FAN, Cuijuan GUO, Lianyang WANG, Yapeng LI, Xingjian HE, Xinglin GONG, Wenlu BAO
  • Patent number: 12296422
    Abstract: The present invention provides a multi-connecting rod linkage angle attachment head, including: a casing, a drive mechanism, and a spindle. The drive mechanism includes: a power mechanism, a connecting rod mechanism, and a fixing frame. The fixing frame is fixedly connected to an inner wall of the casing, and the power mechanism is fixedly connected to the fixing frame. The connecting rod mechanism includes: a first connecting rod, a second connecting rod and a third connecting rod. An end of the first connecting rod is rotatably connected to the fixing frame, and is fixedly connected to an output end of the power mechanism. The other end of the first connecting rod is rotatably connected to an end of the third connecting rod via a first pin. The other end of the third connecting rod is rotatably connected to an end of the second connecting rod via a second pin. The other end of the second connecting rod is fixed on a side wall of the spindle.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: May 13, 2025
    Assignee: KEDE NUMERICAL CONTROL CO., LTD.
    Inventors: Hu Chen, Xin Deng, Hongtao Tang, Changlin Du, Yapeng Li, Cuijuan Guo, Haibo Zhang, Hongwei Sun, Zhihong Wei, Guoshuai Zhang, Lixin Liu, Dawei Wang, Dapeng Dong, Meng Lin, Pei Liu, Yanqing Bai, Shaoyi Liu, Zidan Ju
  • Patent number: 12280459
    Abstract: The present invention discloses a multi-degree-of-freedom numerical control turntable including: a B-shaft rotating assembly; a C1-shaft workbench swing assembly; a C2-shaft workbench rotating assembly; and an S-shaft workbench movement assembly. The B-shaft rotating assembly includes a rotating connection land and a B-shaft power control mechanism; the C2-shaft workbench rotating assembly includes a movement base, a workbench and a C2-shaft power control mechanism; the S-shaft workbench movement assembly includes a swing base and an S-shaft power control mechanism; and the C1-shaft workbench swing assembly includes a swing arm and a C1-shaft power control mechanism, with the C1-shaft line intersecting the B-shaft line. The S-shaft power control mechanism can drive the movement base to move along an S-shaft line on the swing base to cause a region to be machined of a workpiece to approach the intersection point of the C1-shaft line and the B-shaft line.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: April 22, 2025
    Assignee: KEDE NUMERICAL CONTROL CO., LTD.
    Inventors: Hu Chen, Lixin Liu, Hongwei Sun, Zhihong Wei, Changlin Du, Cuijuan Guo, Guoshuai Zhang, Yapeng Li, Haibo Zhang, Xin Deng, Xiangyuan Kong, Qidong Guo, Gang Xu, Jun Wang, Feng Wang, Yinghua Li, Shaoyi Liu, Zidan Ju
  • Publication number: 20250114891
    Abstract: A high-speed nut rotation feed ball screw device includes a ball screw, a ball screw nut, a bearing unit, and a driving unit. The ball screw is fixed on a machine tool via a ball screw seat. The bearing unit includes an inner bearing fixing sleeve, an outer bearing fixing sleeve, and a bearing assembly. One end of the inner bearing fixing sleeve is fixedly connected to one end of the ball screw nut, and another end is fixedly connected to the driving unit. The ball screw nut is arranged on the ball screw. The driving unit includes a first pulley, a second pulley, a synchronous belt, and a driving motor. The first pulley is connected to the driving motor. The second pulley is sleeved on the ball screw and is connected to the inner bearing fixing sleeve. The first and second pulleys are connected via the synchronous belt.
    Type: Application
    Filed: December 6, 2022
    Publication date: April 10, 2025
    Inventors: Yufeng CHEN, Yanbo HOU, Changlin DU, Zhihui REN, Mingshan SONG, Chungang CAI, Chunhong FAN, Cuijuan GUO, Lianyang WANG, Yapeng LI, Xingjian HE, Xinglin GONG, Wenlu BAO
  • Patent number: 12240071
    Abstract: The present invention discloses a five-axis vertical machining system with automatic loading and unloading, including a feeding mechanism, a loading mechanism, and a numerical control machine tool. The feeding mechanism is arranged in front of a ram assembly, and the feeding mechanism drives a raw material to move along an X axis and/or a Y axis of the numerical control machine tool; the loading mechanism is fixed on the ram assembly; and the loading mechanism moves along a Z axis of the numerical control machine tool to drive the raw material onto a cradle assembly of the numerical control machine tool. The present invention realizes an automatic loading and unloading function by setting a feeding mechanism capable of automatic feeding and a loading mechanism with automatic loading to cooperate with each other, thereby improving the working efficiency and saving manpower.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: March 4, 2025
    Assignee: KEDE NUMERICAL CONTROL CO., LTD.
    Inventors: Hu Chen, Jian Zhang, Lianyang Wang, Changlin Du, Haibo Zhang, Yapeng Li, Zidan Ju, Shengfeng Yu, Mingshan Song, Feng Wang, Yinghua Li
  • Patent number: 11945065
    Abstract: A multi-axis turntable includes a base, a rocker arm and a first driving device capable of driving the rocker arm to rock around the first rotation axis on the base. A swing arm and a second driving device, which is capable of driving the swing arm to swing around the second rotation axis on the rocker arm, are provided on the rocker arm. A workbench and a third driving device for driving the workbench to rotate around the third rotation axis are provided on the swing arm. The second rotation axis and the third rotation axis are parallel to each other or on different planes. Compared with the existing double rotating shaft turntable, the multi-axis turntable of the present invention has a cutting tool system of good and stable rigidity.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: April 2, 2024
    Assignee: KEDE NUMERICAL CONTROL CO., LTD.
    Inventors: Hu Chen, Xin Deng, Zhihong Wei, Hongwei Sun, Yapeng Li, Haibo Zhang, Changlin Du, Cuijuan Guo, Guoshuai Zhang, Jun Wang, Feng Wang, Yinghua Li, Shaoyi Liu, Zidan Ju
  • Patent number: 11897073
    Abstract: The invention discloses a double-station gantry combined machining system allowing automatic overturning of workpieces, which comprises a first mobile gantry machining unit, a second mobile gantry machining unit, an overturning platform, a first workpiece fixing table, a second workpiece fixing table and a guide rail, wherein the overturning platform is positioned between the first gantry machining unit and the second gantry machining unit. According to the invention, the system is highly integrated, continuous machining of a gantry machine tool is completed, the working efficiency is improved, and the machining cost of the system is reduced.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: February 13, 2024
    Assignee: KEDE NUMERICAL CONTROL CO., LTD.
    Inventors: Hu Chen, Changlin Du, Rui Tang, Chungang Cai, Cuijuan Guo, Shuqiang Yin, Ang Li, Xinglin Gong, Feng Wang, Yinghua Li
  • Publication number: 20230032515
    Abstract: The present invention discloses a belt-transmission angle attachment head, including a housing, a power mechanism, a transmission mechanism and a spindle; the power mechanism and transmission mechanism are arranged in the housing; the power mechanism includes a servo motor and a reducer, the servo motor is connected to the reducer, and an input shaft of the reducer is vertically arranged with respect to an output shaft of the reducer; the transmission mechanism includes a driving wheel, a transmission belt and a driven wheel, and the driving wheel is mounted on the output shaft of the reducer; a side of the spindle is mounted on the housing via a rotating shaft, an end of the rotating shaft away from the spindle is mounted with the driven wheel, the driving wheel and the driven wheel are connected via the transmission belt, and the spindle and the power mechanism are located on the same side of the transmission mechanism.
    Type: Application
    Filed: November 27, 2020
    Publication date: February 2, 2023
    Inventors: Hu CHEN, Xin DENG, Changlin DU, Cuijuan GUO, Yapeng LI, Haibo ZHANG, Zhihong WEI, Hongwei SUN, Guoshuai ZHANG, Mingshan SONG
  • Publication number: 20230037001
    Abstract: The present invention provides a multi-connecting rod linkage angle attachment head, including: a casing, a drive mechanism, and a spindle. The drive mechanism includes: a power mechanism, a connecting rod mechanism, and a fixing frame. The fixing frame is fixedly connected to an inner wall of the casing, and the power mechanism is fixedly connected to the fixing frame. The connecting rod mechanism includes: a first connecting rod, a second connecting rod and a third connecting rod. An end of the first connecting rod is rotatably connected to the fixing frame, and is fixedly connected to an output end of the power mechanism. The other end of the first connecting rod is rotatably connected to an end of the third connecting rod via a first pin. The other end of the third connecting rod is rotatably connected to an end of the second connecting rod via a second pin. The other end of the second connecting rod is fixed on a side wall of the spindle.
    Type: Application
    Filed: November 27, 2020
    Publication date: February 2, 2023
    Inventors: Hu CHEN, Xin DENG, Hongtao TANG, Changlin DU, Yapeng LI, Cuijuan GUO, Haibo ZHANG, Hongwei SUN, Zhihong WEI, Guoshuai ZHANG, Lixin LIU, Dawei WANG, Dapeng DONG, Meng LIN, Pei LIU, Yanqing BAI, Shaoyi LIU, Zidan JU
  • Publication number: 20230035467
    Abstract: The present invention provides a linkage swing head structure, including: a base, a drive mechanism and a spindle. The drive mechanism includes: a power mechanism, a connecting rod mechanism and a lead screw. An end of the spindle is fixed with a cutter, and the spindle is fixed on an end of the connecting rod mechanism. An end of the connecting rod mechanism fixed with the spindle is sleeved on a support bearing, the connecting rod mechanism can rotate around the support bearing, the support bearing is fixed on the base, and the other end of the connecting rod mechanism is movably connected to the lead screw. An output end of the power mechanism is connected to an end of the lead screw. The connecting rod mechanism adjusts the rotation angle of the spindle by sliding on the lead screw. The drive mechanism of the present invention is far away from the spindle, and the interference range thereof to the spindle is small.
    Type: Application
    Filed: November 27, 2020
    Publication date: February 2, 2023
    Inventors: Hu CHEN, Xin DENG, Hongtao TANG, Haibo ZHANG, Yapeng LI, Cuijuan GUO, Changlin DU, Zhihong WEI, Hongwei SUN, Guoshuai ZHANG, Xiangyuan KONG, Gang XU, Dawei WANG, Dapeng DONG, Meng LIN, Pei LIU, Yanqing BAI, Feng WANG, Yinghua LI, Shaoyi LIU, Zidan JU
  • Publication number: 20230023718
    Abstract: A multi-axis turntable includes a base, a rocker arm and a first driving device capable of driving the rocker arm to rock around the first rotation axis on the base. A swing arm and a second driving device, which is capable of driving the swing arm to swing around the second rotation axis on the rocker arm, are provided on the rocker arm. A workbench and a third driving device for driving the workbench to rotate around the third rotation axis are provided on the swing arm. The second rotation axis and the third rotation axis are parallel to each other or on different planes. Compared with the existing double rotating shaft turntable, the multi-axis turntable of the present invention has a cutting tool system of good and stable rigidity.
    Type: Application
    Filed: November 27, 2020
    Publication date: January 26, 2023
    Inventors: Hu CHEN, Xin DENG, Zhihong WEI, Hongwei SUN, Yapeng LI, Haibo ZHANG, Changlin DU, Cuijuan GUO, Guoshuai ZHANG, Jun WANG, Feng WANG, Yinghua LI, Shaoyi LIU, Zidan JU
  • Publication number: 20220395944
    Abstract: The present invention discloses a multi-degree-of-freedom numerical control turntable including: a B-shaft rotating assembly; a C1-shaft workbench swing assembly; a C2-shaft workbench rotating assembly; and an S-shaft workbench movement assembly. The B-shaft rotating assembly includes a rotating connection land and a B-shaft power control mechanism; the C2-shaft workbench rotating assembly includes a movement base, a workbench and a C2-shaft power control mechanism; the S-shaft workbench movement assembly includes a swing base and an S-shaft power control mechanism; and the C1-shaft workbench swing assembly includes a swing arm and a C1-shaft power control mechanism, with the C1-shaft line intersecting the B-shaft line. The S-shaft power control mechanism can drive the movement base to move along an S-shaft line on the swing base to cause a region to be machined of a workpiece to approach the intersection point of the C1-shaft line and the B-shaft line.
    Type: Application
    Filed: September 22, 2020
    Publication date: December 15, 2022
    Inventors: Hu CHEN, Lixin LIU, Hongwei SUN, Zhihong WEI, Changlin DU, Cuijuan GUO, Guoshuai ZHANG, Yapeng LI, Haibo ZHANG, Xin DENG, Xiangyuan KONG, Qidong GUO, Gang XU, Jun WANG, Feng WANG, Yinghua LI, Shaoyi LIU, Zidan JU
  • Publication number: 20220274219
    Abstract: The present invention discloses a five-axis vertical machining system with automatic loading and unloading, including a feeding mechanism, a loading mechanism, and a numerical control machine tool. The feeding mechanism is arranged in front of a ram assembly, and the feeding mechanism drives a raw material to move along an X axis and/or a Y axis of the numerical control machine tool; the loading mechanism is fixed on the ram assembly; and the loading mechanism moves along a Z axis of the numerical control machine tool to drive the raw material onto a cradle assembly of the numerical control machine tool. The present invention realizes an automatic loading and unloading function by setting a feeding mechanism capable of automatic feeding and a loading mechanism with automatic loading to cooperate with each other, thereby improving the working efficiency and saving manpower.
    Type: Application
    Filed: August 14, 2020
    Publication date: September 1, 2022
    Inventors: Hu CHEN, Jian ZHANG, Lianyang WANG, Changlin DU, Haibo ZHANG, Yapeng LI, Zidan JU, Shengfeng YU, Mingshan SONG, Feng WANG, Yinghua LI
  • Publication number: 20220226948
    Abstract: The invention discloses a multiple-spindle full-automatic vertical machining center, which comprises an actuator, a lathe bed, a feeding area, a tooling area, a machining area and a tool changer area. The actuator comprises a ram, a saddle and a sliding table, the feeding area crosses the lathe bed, and the feeding area and the tool changer area are respectively located on two opposite sides of the machining area, the feeding area is located at a forefront end of the machining center, and the actuator moves above the feeding area, the tooling area, the machining area and the tool changer area. Compared with the prior art, a conveyor belt is arranged in front of the whole machine tool and crosses the machine tool, a length of the conveyor belt may be increased or decreased as required, and by increasing the length of the conveyor belt, more raw materials and finished parts may be stored, so labor is saved.
    Type: Application
    Filed: July 7, 2020
    Publication date: July 21, 2022
    Inventors: Hu CHEN, Changlin DU, Lianyang WANG, Rui TANG, Shuqiang YIN, Ang LI, Xinglin GONG, Shaozhi LI
  • Publication number: 20220193842
    Abstract: The invention discloses a double-station gantry combined machining system allowing automatic overturning of workpieces, which comprises a first mobile gantry machining unit, a second mobile gantry machining unit, an overturning platform, a first workpiece fixing table, a second workpiece fixing table and a guide rail, wherein the overturning platform is positioned between the first gantry machining unit and the second gantry machining unit. According to the invention, the system is highly integrated, continuous machining of a gantry machine tool is completed, the working efficiency is improved, and the machining cost of the system is reduced.
    Type: Application
    Filed: April 3, 2020
    Publication date: June 23, 2022
    Inventors: Hu CHEN, Changlin DU, Rui TANG, Chungang CAI, Cuijuan GUO, Shuqiang YIN, Ang LI, Xinglin GONG, Feng WANG, Yinghua LI