Abstract: An apparatus for polishing a butt weld includes a machine frame; a polishing mechanism, including a rotating arm, a supporting column rotatably mounted on the rotating arm, and a polishing roll rotatably mounted on the supporting column in a circumferential direction of the polishing roll; an angle limiting assembly, movably mounted on the rotating arm, the angle limiting assembly limiting an angle at which an outer side end of the supporting column swings upward; a roll driving part, mounted on the rotating arm. The roll driving part is in transmission connection with the polishing roll and drives the polishing roll to rotate on the supporting column in the circumferential direction of the polishing roll. An arm driving part is mounted on a fixed frame, the rotating arm being mounted on the arm driving part, and the arm driving part drives the rotating arm to rotate in a circumferential direction.

Abstract: An apparatus for polishing a butt weld includes a machine frame; a polishing mechanism, including a rotating arm, a supporting column rotatably mounted on the rotating arm, and a polishing roll rotatably mounted on the supporting column in a circumferential direction of the polishing roll; an angle limiting assembly, movably mounted on the rotating arm, the angle limiting assembly limiting an angle at which an outer side end of the supporting column swings upward; a roll driving part, mounted on the rotating arm. The roll driving part is in transmission connection with the polishing roll and drives the polishing roll to rotate on the supporting column in the circumferential direction of the polishing roll. An arm driving part is mounted on a fixed frame, the rotating arm being mounted on the arm driving part, and the arm driving part drives the rotating arm to rotate in a circumferential direction.

Abstract: Disclosed are a device and a method for transferring the semiconductor component, which aims to accurately measure the movement accuracy of a transfer stamp when transferring semiconductor components using a transfer stamp, thereby improving the alignment accuracy between the transfer stamp and the semiconductor component, ensuring the yield rate of the prepared products, and solving the problem in the related art that after the transfer stamp is aligned with a temporary carrier or a drive circuit backplane, the semiconductor components cannot be guaranteed by only relying on the large stroke up and down movement of the guide rail. The precise picking up of LED chips or accurate placement of them at the predetermined position on the driver circuit backplane results in a decrease in the transfer yield, affecting the technical issues of subsequent related processes.

Abstract: A rehabilitation training system for lower limb rehabilitation comprises a function module comprising: a sensing unit that collects body function data comprising pedal pressure, exercise duration, and exercise mileage; and a mechanical structure module comprising: a driving unit and a linkage unit arranged on a frame; a groove plate for supporting a cam roller, a pedal for supporting the weight of the training object and driving the lower limb of the training object to move; a link for transmitting kinetic energy to the pedal; a rocker for supporting the link; a connecting bulge driving a guide shaft to rotate; a linear bearing supporting the guide shaft and an axis pin for connecting the link and the slider.

Abstract: A method for performing lower limb rehabilitation training comprises the steps of: (a) placing a training object's feet on a pedal in a limb rehabilitation training system, wherein the pedal comprises a pressure sensor and a location information sensor; (b) standing stably on the pedal to enable the pressure sensor on the pedal to record the body weight of the training object; and (c) sitting down on the saddle, thereby enabling: the pressure sensor on the pedal to monitor pressure variation between the training object and the pedal throughout the training of the training object, wherein the rehabilitation evaluating unit evaluates the physical status and rehabilitation status of the training object according to the physiological information and exercise information of the same collected by the sensing unit, and adjusts the exercise frequency and the exercise duration of the training object according to the physical status.

Abstract: A SnBiSb series low-temperature lead-free solder and a preparation method thereof, which belongs to the technical field of low-temperature soldering. The lead-free solder includes by weight the following composition: 32.8-56.5% of Bi, 0.7-2.2% of Sb, with the remainder being Sn, wherein the weight percentages of Bi and Sb satisfy a relationship of b=0.006a2?0.672a+19.61+c, wherein the symbol a represents the weight percentage of Bi, the symbol b represents the weight percentage of Sb, and the range of c is ?1.85?c?1.85. The solder alloy has a peritectic or near peritectic structure with a low melting point, and has an excellent mechanical performance and reliability, and applicable to the field of low-temperature soldering.

Abstract: A grouting system with an adjustable moving cavity pressure. The grouting system includes a master grouting pipe and a plurality of grouting valve pipes connected to the master grouting pipe, each grouting valve pipe is in an annular space within a borehole wall, the grouting valve pipe includes a grouting valve pipe body, and a spraying valve port is on the grouting valve pipe body. A grouting pipe, an air injection pipe and a movable piston are inside the grouting valve pipe body. The air injection pipe is connected with the movable piston to apply an air pressure into the movable piston, and the movable piston applied with the air pressure expands in volume to form a closed cavity between a lower part of the movable piston and the grouting valve pipe body, so that grouting is performed according to the position of the movable piston.

Abstract: A rehabilitation training system for lower limb rehabilitation comprises a function module comprising: a sensing unit that collects body function data comprising pedal pressure, exercise duration, and exercise mileage; and a mechanical structure module comprising: a driving unit and a linkage unit arranged on a frame; a groove plate for supporting a cam roller, a pedal for supporting the weight of the training object and driving the lower limb of the training object to move; a link for transmitting kinetic energy to the pedal; a rocker for supporting the link; a connecting bulge driving a guide shaft to rotate; a linear bearing supporting the guide shaft and an axis pin for connecting the link and the slider.

Abstract: A method for performing lower limb rehabilitation training comprises the steps of: (a) placing a training object's feet on a pedal in a limb rehabilitation training system, wherein the pedal comprises a pressure sensor and a location information sensor; (b) standing stably on the pedal to enable the pressure sensor on the pedal to record the body weight of the training object; and (c) sitting down on the saddle, thereby enabling: the pressure sensor on the pedal to monitor pressure variation between the training object and the pedal throughout the training of the training object, wherein the rehabilitation evaluating unit evaluates the physical status and rehabilitation status of the training object according to the physiological information and exercise information of the same collected by the sensing unit, and adjusts the exercise frequency and the exercise duration of the training object according to the physical status.

Abstract: A medical apparatus for standing aid includes a backrest (4) that has at least one side thereof provided with a crank rocker mechanism that includes a crank mechanism (1), a triangle linkage mechanism (2), and a rocker mechanism (3), the crank mechanism (1) is rotatably connected to the triangle linkage mechanism (2) such that an included angle between a second driven link (BE) of the triangle linkage mechanism (2) and the crank mechanism (1) is always smaller than 90°, and the crank mechanism (1) driving the triangle linkage mechanism (2), the rocker mechanism (3) and the backrest (4) connected to the triangle linkage mechanism to perform interactive movement repeatedly along a predetermined curve trajectory in response to a driving force from a drive effect of a driving unit (100), so that the backrest (4) connected to the second driven link (BE) assists a trainee in standing up repeatedly by obliquely supporting the trainee's waist.

Abstract: A smart medical rehabilitation device comprises a driving unit, a linkage unit, a sensing unit and a rehabilitation evaluating unit that are mounted on a frame, wherein the linkage unit comprises a link mechanism and a slide mechanism linked thereto so that the slide mechanism can be moved together with the link mechanism, wherein the slide mechanism is driven by the driving unit to slide along the groove plate, the link mechanism is linked to move with the slide mechanism thus the link mechanism moves to the corresponding position so that the slide mechanism can assist a training object in performing lower limb rehabilitation training, and the rehabilitation evaluating unit evaluates the physical status and rehabilitation status of the training object according to the physiological information and exercise information of the same collected by the sensing unit, and adjusts the exercise frequency and the exercise duration of the training object according to the physical status in real time.

Abstract: A medical apparatus for standing aid includes a backrest (4) that has at least one side thereof provided with a crank rocker mechanism that includes a crank mechanism (1), a triangle linkage mechanism (2), and a rocker mechanism (3), the crank mechanism (1) is rotatably connected to the triangle linkage mechanism (2) such that an included angle between a second driven link (BE) of the triangle linkage mechanism (2) and the crank mechanism (1) is always smaller than 90°, and the crank mechanism (1) driving the triangle linkage mechanism (2), the rocker mechanism (3) and the backrest (4) connected to the triangle linkage mechanism to perform interactive movement repeatedly along a predetermined curve trajectory in response to a driving force from a drive effect of a driving unit (100), so that the backrest (4) connected to the second driven link (BE) assists a trainee in standing up repeatedly by obliquely supporting the trainee's waist.

Abstract: A medical apparatus for standing aid includes a backrest (4) that has at least one side thereof provided with a crank rocker mechanism that includes a crank mechanism (1), a triangle linkage mechanism (2), and a rocker mechanism (3), the crank mechanism (1) is rotatably connected to the triangle linkage mechanism (2) such that an included angle between a second driven link (BE) of the triangle linkage mechanism (2) and the crank mechanism (1) is always smaller than 90°, and the crank mechanism (1) driving the triangle linkage mechanism (2), the rocker mechanism (3) and the backrest (4) connected to the triangle linkage mechanism to perform interactive movement repeatedly along a predetermined curve trajectory in response to a driving force from a drive effect of a driving unit (100), so that the backrest (4) connected to the second driven link (BE) assists a trainee in standing up repeatedly by obliquely supporting the trainee's waist.

Abstract: A SnBiSb series low-temperature lead-free solder and a preparation method thereof, which belongs to the technical field of low-temperature soldering. The lead-free solder includes by weight the following composition: 32.8-56.5% of Bi, 0.7-2.2% of Sb, with the remainder being Sn, wherein the weight percentages of Bi and Sb satisfy a relationship of b=0.006a2?0.672a+19.61=c, wherein the symbol a represents the weight percentage of Bi, the symbol b represents the weight percentage of Sb, and the range of c is ?1.85?c?1.85. The solder alloy has a peritectic or near peritectic structure with a low melting point, and has an excellent mechanical performance and reliability, and applicable to the field of low-temperature soldering.

Abstract: A medical apparatus for standing aid includes a backrest (4) that has at least one side thereof provided with a crank rocker mechanism that includes a crank mechanism (1), a triangle linkage mechanism (2), and a rocker mechanism (3), the crank mechanism (1) is rotatably connected to the triangle linkage mechanism (2) such that an included angle between a second driven link (BE) of the triangle linkage mechanism (2) and the crank mechanism (1) is always smaller than 90°, and the crank mechanism (1) driving the triangle linkage mechanism (2), the rocker mechanism (3) and the backrest (4) connected to the triangle linkage mechanism to perform interactive movement repeatedly along a predetermined curve trajectory in response to a driving force from a drive effect of a driving unit (100), so that the backrest (4) connected to the second driven link (BE) assists a trainee in standing up repeatedly by obliquely supporting the trainee's waist.

Abstract: A medical apparatus for standing aid includes a backrest (4) that has at least one side thereof provided with a crank rocker mechanism that includes a crank mechanism (1), a triangle linkage mechanism (2), and a rocker mechanism (3), the crank mechanism (1) is rotatably connected to the triangle linkage mechanism (2) such that an included angle between a second driven link (BE) of the triangle linkage mechanism (2) and the crank mechanism (1) is always smaller than 90°, and the crank mechanism (1) driving the triangle linkage mechanism (2), the rocker mechanism (3) and the backrest (4) connected to the triangle linkage mechanism to perform interactive movement repeatedly along a predetermined curve trajectory in response to a driving force from a drive effect of a driving unit (100), so that the backrest (4) connected to the second driven link (BE) assists a trainee in standing up repeatedly by obliquely supporting the trainee's waist.

Abstract: A medical apparatus for standing aid includes a backrest (4) that has at least one side thereof provided with a crank rocker mechanism that includes a crank mechanism (1), a triangle linkage mechanism (2), and a rocker mechanism (3), the crank mechanism (1) is rotatably connected to the triangle linkage mechanism (2) such that an included angle between a second driven link (BE) of the triangle linkage mechanism (2) and the crank mechanism (1) is always smaller than 90°, and the crank mechanism (1) driving the triangle linkage mechanism (2), the rocker mechanism (3) and the backrest (4) connected to the triangle linkage mechanism to perform interactive movement repeatedly along a predetermined curve trajectory in response to a driving force from a drive effect of a driving unit (100), so that the backrest (4) connected to the second driven link (BE) assists a trainee in standing up repeatedly by obliquely supporting the trainee's waist.

Abstract: A medical apparatus for standing aid comprising a backrest (4) that has at least one side thereof provided with a crank rocker mechanism that comprises a crank mechanism (1), a triangular linkage mechanism (2), and a rocker mechanism (3), the crank mechanism (1) being rotatably connected to the triangular linkage mechanism (2) such that an included angle between a second driven link (BE) of the triangular linkage mechanism (2) and the crank mechanism (1) is always smaller than 90°, and the crank mechanism (1) driving the triangular linkage mechanism (2), the rocker mechanism (3) and the backrest (4) connected to the triangular linkage mechanism (2) to perform interactive movement repeatedly along a predetermined curve trajectory in response to a driving force coming from a drive effect of a driving unit (100), so that the backrest (4) connected to the second driven link (BE) assists a trainee in standing up repeatedly by obliquely supporting the trainee's waist.

Abstract: The embodiments of the present application provide a method and a state control apparatus as well as a portable terminal. The method is applied in a first system connected to a second system and includes: detecting, by the first system, a first event; determining a first state of the first system and a second state of the second system when the first event is a first predetermined event; obtaining a predetermined policy including a first control command and a second control command based on the first state of the first system, the second state of the second system and the first predetermined event; and controlling, by the first system, its own state based on the first control command and transmitting the second control command to the second system such that the second system is switched from the second state to a fourth state. The second system has different power consumptions in the second state and the fourth state.

Abstract: A smart medical rehabilitation device comprises a driving unit, a linkage unit, a sensing unit and a rehabilitation evaluating unit that are mounted on a frame, wherein the linkage unit comprises a link mechanism and a slide mechanism linked thereto so that the slide mechanism can be moved together with the link mechanism, wherein the slide mechanism is driven by the driving unit to slide along the groove plate, the link mechanism is linked to move with the slide mechanism thus the link mechanism moves to the corresponding position so that the slide mechanism can assist a training object in performing lower limb rehabilitation training, and the rehabilitation evaluating unit evaluates the physical status and rehabilitation status of the training object according to the physiological information and exercise information of the same collected by the sensing unit, and adjusts the exercise frequency and the exercise duration of the training object according to the physical status in real time.