Abstract: A protective film includes a transparent substrate layer and a transparent hardened layer covering a surface of the transparent substrate layer. The transparent hardened layer includes a first region covering a middle portion of the transparent substrate layer and a second region covering an edge of the transparent substrate layer, where hardness of the first region is greater than hardness of the second region. The transparent hardened layer includes the first region and the second region.

Abstract: The present disclosure discloses a wheel rim finishing device. A motor is fixedly mounted on a stand through a shaft sleeve I. A supporting body is arranged on the stand. The side, close to a locating disk, of the supporting body is provided with an outer roller. An inner driving roller body and an inner driven roller body are arranged at a position, close to the outer roller, on the inner side of the locating disk. The wheel rim finishing device is simple in structure and high in universality, and may adapt to wheel types with different rim structures.

Abstract: A method and a device for determining an extraction model of a green tide coverage ratio based on mixed pixels. The method includes acquiring sample truth values respectively corresponding to a plurality of target regions water body and green tide; acquiring a plurality of first remote sensing data of a first satellite sensor, the plurality of remote sensing data are in one-to-one correspondence with the plurality of target regions; determining reflection index sets respectively corresponding to the plurality of target regions according to the plurality of remote sensing data; and determining the extraction model of the green tide coverage ratio corresponding to the first satellite sensor according to the sample truth value corresponding to each of the plurality of target regions and the reflection index set corresponding to each of the plurality of target regions.

Abstract: The present disclosure provides a numerical control machine and a cutting method. The numerical control machine includes a workpiece seat for fixing a workpiece, a cutting tool, a non-contact measurement component for measuring a contour of a surface to be machined of the workpiece, a power component and a control component. The workpiece seat is rotatable relative to the cutting tool or the non-contact measurement component under driving of the power component, and/or the cutting tool is rotatable relative to the workpiece seat under the driving of the power component. Both the cutting tool and the non-contact measurement component are mounted on the numerical control machine, and distances from the workpiece seat to both is adjustable. The control component is electrically connected with the non-contact measurement component and the power component.

Abstract: The present disclosure discloses a wheel rim finishing device. A motor is fixedly mounted on a stand through a shaft sleeve I. A supporting body is arranged on the stand. The side, close to a locating disk, of the supporting body is provided with an outer roller. An inner driving roller body and an inner driven roller body are arranged at a position, close to the outer roller, on the inner side of the locating disk. The wheel rim finishing device is simple in structure and high in universality, and may adapt to wheel types with different rim structures.

Abstract: A fixture for eccentric clamping of a wheel is composed of a base (1), a cylinder (2), a cylinder support (3), a connecting seat (4), a movable positioning seat (5), a guide rail sliding seat (6), a linear guide rail (7) and a fixed positioning seat (8), wherein the cylinder support (3), the linear guide rail (7) and the fixed positioning seat (8) are fixed on the base (1), the cylinder (2) is mounted on the cylinder support (3), an output shaft of the cylinder (2) is connected with the connecting seat (4), the connecting seat (4) is connected with the linear guide rail (7) via the guide rail sliding seat (6), the movable positioning seat (5) is fixed on the connecting seat (4), and the cylinder (2) is configured to drive the connecting seat (4) and the movable positioning seat (5) to move along the linear guide rail (7).

Abstract: A protective device for spraying of a wheel is mainly composed of a support, a cylinder, a push plate, bases, floating shafts, shaft sleeves, stop screws, copper sleeves, rotatable pins, springs, elastic collars, end covers, flange plates, guards and a mandrel, wherein the bases and the cylinder are fixed on the support, a flange plate is fixed on each base, an output shaft of the cylinder is connected with the push plate, a copper sleeve is enclosed in each base via an elastic collar, an end cover encloses a spring and a floating shaft inside a shaft sleeve, and the spring is connected with the floating shaft and an end cover respectively.

Abstract: A wheel deburring machine is capable of meeting the demand for mixed-line high-precision clamping in a wheel burr brushing process when being used and is ideal in effect, high in efficiency, safe and reliable in working and high in automation degree so as to be particularly suitable for mass production on a production line.

Abstract: The disclosure provides a laser remelting treatment method for a surface of an aluminum alloy which comprises: cleaning the surface to be treated of the aluminum alloy; spraying an isolating light absorbing agent on the surface to be treated which has been cleaned; and using a laser to scan the surface to be treated which has been sprayed with the isolating light absorbing agent to perform remelting.

Abstract: The invention discloses a wheel machining tool. A rough turning tool and a finish turning tool are respectively arranged on two sides of a tool head, the primary declination angle ? of the rough turning tool is set to 90° to 120°, and the primary declination angle ? of the finish turning tool is set to 85° to 95°; the axial height difference between the rough turning tool and the finish turning tool is set to 0.2-0.5 mm; the distance c between the rough turning tool and the tool head is set to 5-8 mm, and the distance b between the finish turning tool and the tool head is set to 3-5 mm. The rake angle ? of the rough turning tool is set to 12°-15°, the rake angle ? of the finish turning tool is set to 14°-17°.

Abstract: The invention discloses a wheel machining tool. A rough turning tool and a finish turning tool are respectively arranged on two sides of a tool head, the primary declination angle ? of the rough turning tool is set to 90° to 120°, and the primary declination angle ? of the finish turning tool is set to 85° to 95°; the axial height difference between the rough turning tool and the finish turning tool is set to 0.2-0.5 mm; the distance c between the rough turning tool and the tool head is set to 5-8 mm, and the distance b between the finish turning tool and the tool head is set to 3-5 mm. The rake angle ? of the rough turning tool is set to 12°-15°, the rake angle ? of the finish turning tool is set to 14°-17°.

Abstract: A device and method for measuring the thickness and position tolerance of a wheel bolt hole. The device includes a screw, a handle, a detection pillar and a base plate, where the handle and the base plate are fixed via the screw; the detection pillar is fixed onto the base plate through interference fit; and the detection pillar a bolt hole. The position tolerance and thickness of a bolt hole are measured simultaneously, and the labor intensity is reduced, and the existing bolt hole position tolerance detection tool can be modified for the use as the tool of the device, saving costs. The tool can detect the thickness of a bolt hole and qualitatively determine the range where the difference between the value of bolt hole thickness and the standard value approximately lies, and can be used for the grading of bolt hole thickness values based.

Abstract: The present application provides a chamfer removing device for wheels. The device may be used for removing a bolt hole chamfer on flange side of back cavity of a wheel in hub machining process. Drill bits are spaced a certain height from the flange side of the wheel by adjusting the relative height of an external thread guiding sleeve in an internal thread guiding sleeve, a motor and gears drive the drill bits to rotate, and a cylinder and a sliding box drive the drill bits to move up and down so as to realize chamfer removing function.

Abstract: A protective device for spraying of a wheel is mainly composed of a support, a cylinder, a push plate, bases, floating shafts, shaft sleeves, stop screws, copper sleeves, rotatable pins, springs, elastic collars, end covers, flange plates, guards and a mandrel, wherein the bases and the cylinder are fixed on the support, a flange plate is fixed on each base, an output shaft of the cylinder is connected with the push plate, a copper sleeve is enclosed in each base via an elastic collar, an end cover encloses a spring and a floating shaft inside a shaft sleeve, and the spring is connected with the floating shaft and an end cover respectively.

Abstract: A fixture for eccentric clamping of a wheel is composed of a base (1), a cylinder (2), a cylinder support (3), a connecting seat (4), a movable positioning seat (5), a guide rail sliding seat (6), a linear guide rail (7) and a fixed positioning seat (8), wherein the cylinder support (3), the linear guide rail (7) and the fixed positioning seat (8) are fixed on the base (1), the cylinder (2) is mounted on the cylinder support (3), an output shaft of the cylinder (2) is connected with the connecting seat (4), the connecting seat (4) is connected with the linear guide rail (7) via the guide rail sliding seat (6), the movable positioning seat (5) is fixed on the connecting seat (4), and the cylinder (2) is configured to drive the connecting seat (4) and the movable positioning seat (5) to move along the linear guide rail (7).

Abstract: The present disclosure provides a flexible device for burr removing, which is composed of a frame (1), lower flanges (2), guide posts (3), thrust cylinders (4), guide sleeves (5), thrust shafts (6), sleeves (7), a movable plate (8), upper flanges (9), a dust guard (10), cylinder housings (11) and the like. The flexible device for burr removing in use can meet the requirement for brushing burrs on wheels having two different sizes in one burr brusher, has the characteristics of ideal effect, high efficiency, safety and reliability in work and high degree of automation, and is particularly suitable for batch production on production lines.

Abstract: The present application provides a chamfer removing device for wheels. The device may be used for removing a bolt hole chamfer on flange side of back cavity of a wheel in hub machining process. Drill bits are spaced a certain height from the flange side of the wheel by adjusting the relative height of an external thread guiding sleeve in an internal thread guiding sleeve, a motor and gears drive the drill bits to rotate, and a cylinder and a sliding box drive the drill bits to move up and down so as to realize chamfer removing function.

Abstract: The present application discloses an improved wheel mounting device. A support is fixed on a base, a flange positioning plate is fixed on the support, a sliding sleeve is fixed on the flange positioning plate, a sleeve is fixed with the sliding sleeve, a strut slides in the sleeve and a movable pin, the strut passes through the sleeve via a screw, the sleeve is tightened together with the strut, a spring I is put in the sleeve and the strut to adjust the vertical position of the strut, the movable pin moves up and down in the sliding sleeve, a spring II is put in the movable pin and the sleeve to adjust the vertical position of the movable pin.

Abstract: The present invention provides a device and method for measuring dimensions of a back boring cutter. The device is formed by a measuring portion (1), a connecting portion (2) and a clamping portion (6). The measuring portion (1) has a first horizontal through hole (7), a horizontal hole (5) and a vertical hole (4). The clamping portion (6) comprises a second horizontal through hole (7?), a side wall of the second horizontal through hole (7?) is provided with a bolt hole (8), and a bolt (3) passes through the bolt hole (8) to install and fix a to-be-measured back boring cutter. One end of the connecting portion (2) is fixed on the measuring portion (1), while the other end is fixed on the clamping portion (6). The device and the method of the present invention have the advantages that simple measurement of important dimensions of the back boring cutter is realized, and dimension detection of the back boring cutter is simpler and more accurate.

Abstract: The present disclosure provides a flexible device for burr removing, which is composed of a frame (1), lower flanges (2), guide posts (3), thrust cylinders (4), guide sleeves (5), thrust shafts (6), sleeves (7), a movable plate (8), upper flanges (9), a dust guard (10), cylinder housings (11) and the like. The flexible device for burr removing in use can meet the requirement for brushing burrs on wheels having two different sizes in one burr brusher, has the characteristics of ideal effect, high efficiency, safety and reliability in work and high degree of automation, and is particularly suitable for batch production on production lines.