Numerical control machine tool based on automobile hub machining

Abstract

The invention relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool based on automobile hub machining, which comprises a bottom box, a box body, a box door, mounting boxes, lead screw motors, moving blocks and the like, the box body is connected to the top of the bottom box, the box door is slidably connected to the front side of the box body, the mounting boxes are connected to the left and right sides of the box body, and the lead screw motors are mounted on the mounting boxes; moving blocks are connected to the mounting boxes in a sliding mode, and lead screws of the lead screw motors are connected with the moving blocks through threads. The cutter bar can be driven to rotate through the output shaft of the driving motor, the cutter bar can be controlled to machine the automobile hub, the cutter bar can be shot through the visual sensor, the contour of the cutter bar is fed back to the computer, the specification of the cutter bar can be known through the computer, the cutter bar is prevented from being replaced by mistake, and therefore the situation that the automobile hub is machined disqualification can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control machine tools, and in particular to a numerical control machine tool based on automobile wheel hub processing. Background Art

[0002] The car wheel is an important part of the vehicle and is directly related to the performance and appearance of the vehicle. Today's car wheel designs often contain complex geometric shapes and details, such as spokes, vents, etc. These complex design requirements can be accurately achieved through CNC machining, ensuring that the size of each car wheel is highly consistent, which is crucial to ensure the perfect match between the car wheel and other parts of the vehicle.

[0003] When the CNC machine tool processes the automobile wheel hub, friction occurs between the tool rod and the automobile wheel hub. Long-term accumulation will cause wear on the tool rod surface, which will affect the processing quality. Therefore, the worn tool rod needs to be replaced. Different automobile wheel hubs use tool rods of different specifications. Inexperienced staff are not fully familiar with tool rods of different specifications, and it is difficult to correctly identify the specifications of the tool rod, and it is easy to replace the wrong tool rod. Secondly, long working hours or high-intensity tasks may cause staff fatigue, thereby reducing concentration and increasing the possibility of errors. Replacing the wrong tool rod will cause the automobile wheel hub processing to be unqualified or even scrapped. Summary of the invention

[0004] In view of this, the present invention provides a CNC machine tool based on automobile wheel hub processing, which can overcome the shortcomings that inexperienced workers are not fully familiar with tool rods of different specifications, find it difficult to correctly identify the specifications of tool rods, are prone to changing the wrong tool rods, and long working hours or high-intensity tasks may cause worker fatigue, thereby reducing concentration and increasing the possibility of errors.

[0005] Technical solution: A CNC machine tool based on automobile wheel hub processing, including a bottom box, a box body, a box door, an installation box, a screw motor, a moving block, a horizontal electric guide rail, a vertical electric guide rail, an adjustment motor, a drive motor, a knife bar, a connecting plate, a rotating ring, a mounting rod, a visual sensor, a rotating mechanism and a clamping mechanism. The top of the bottom box is connected to the box body, the front side of the box body is slidably connected to the box door, the left and right sides of the box body are connected to the installation box, the installation box is installed with a screw motor, the installation box is slidably connected with a moving block, the screw of the screw motor and the moving block are connected by threads, and the two moving A horizontal electric guide rail is installed between the blocks, a vertical electric guide rail is installed on the slider of the horizontal electric guide rail, an adjusting motor is installed on the slider of the vertical electric guide rail, the output shaft of the adjusting motor is connected to a driving motor, the output shaft of the driving motor is connected to a knife rod, a connecting plate is connected to the installation box on the left, a rotating ring is rotatably connected to the top of the connecting plate, a mounting rod is connected to the top of the rotating ring, a visual sensor is installed on the mounting rod, a rotating mechanism for controlling the visual sensor to rotate around the knife rod is provided on the connecting plate, and a clamping mechanism for clamping the automobile wheel hub is provided on the installation box.

[0006] In addition, it is particularly preferred that the rotating mechanism includes a rotating motor and gears, the rotating motor is mounted on the connecting plate, and the output shaft of the rotating motor and the rotating ring are driven by the gears.

[0007] In addition, it is particularly preferred that the clamping mechanism includes a support plate, a placement plate, a hydraulic cylinder and a clamping block, two support plates are connected between the two mounting boxes, the tops of the two support plates are commonly connected to a placement plate, hydraulic cylinders are installed at the four corners of the tops of the placement plates, and clamping blocks for clamping the car wheel hub are connected to the telescopic rods of the hydraulic cylinders.

[0008] In addition, it is particularly preferred that a protection mechanism is also included, which includes a sliding frame, a spring, a block, a ramp block and a pushing plate. The sliding frame is slidably connected to the mounting rod, a spring is connected between the rotating ring and the sliding frame, the sliding frame is connected to a block for protecting the visual sensor, the sliding frame is connected to a ramp block, and a pushing plate is connected to the middle of the driving motor. The pushing plate is used to push the ramp block upward, and the ramp block drives the block to move upward so that the block no longer protects the visual sensor.

[0009] In addition, it is particularly preferred that a feeding mechanism is also included, the feeding mechanism includes a fixed track, a frame, a guide track, a rotating track, an elastic rope, a fixed pulley, a movable frame, a rotating shaft, a roller, a dual-axis motor and a clamping assembly, the left and right sides of the bottom of the box body are connected to the fixed track, the left and right sides of the top of the frame are connected to the guide track, the rear end of the guide track is hinged with the rotating track, an elastic rope is connected between the rotating track and the guide track, the guide track is rotatably connected to the fixed pulley, the elastic rope passes around the fixed pulley, the front and rear sides of the movable frame are rotatably connected to the rotating shaft, the left and right ends of the rotating shaft are connected to the rollers, the rollers are located in the guide track, and the rollers can roll along the guide track to the rotating track and the fixed track, a dual-axis motor is installed on the top of the movable frame, the output shaft and the rotating shaft of the dual-axis motor are driven by a pulley group, and the movable frame is provided with a clamping assembly for clamping the automobile wheel hub.

[0010] In addition, it is particularly preferred that the clamping assembly includes a cylinder, a slide plate and a clamp plate, the cylinders are installed on the left and right sides of the top of the movable frame, the slide plates are slidably connected to the left and right sides of the movable frame, the telescopic rod of the cylinder is connected to the slide plate, and the slide plate is connected to the clamp plate for clamping the car wheel hub.

[0011] In addition, it is particularly preferred that a contact wheel is further included, and the top of the rotating track is rotatably connected to the contact wheel.

[0012] Furthermore, it is particularly preferred that the front side of the box door is made of a transparent material.

[0013] Beneficial effects: 1. The output shaft of the driving motor can drive the tool rod to rotate, and the tool rod can be controlled to process the automobile wheel hub. The tool rod can be photographed by a visual sensor, and the contour of the tool rod can be fed back to a computer. The specifications of the tool rod can be understood by the computer to avoid wrong replacement of the tool rod, thereby avoiding unqualified processing of the automobile wheel hub.

[0014] 2. The block can block the debris to prevent the debris from damaging the visual sensor. The block can be pushed upward by the push plate to raise the block so that the visual sensor can capture the knife rod.

[0015] 3. The output shaft of the dual-axis motor can drive the roller to rotate, and the roller rolls in the guide track, so that the mobile frame can move. The mobile frame drives the clamping plate to move, and the unprocessed automobile wheel hub is transported to the placement plate, and the material is automatically fed and unloaded, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0017] Figure 2 A three-dimensional structural schematic diagram of the horizontal electric guide rail, the vertical electric guide rail and the adjustment motor of the present invention is shown.

[0018] Figure 3 A three-dimensional structural schematic diagram of the lead screw motor, moving block and horizontal electric guide rail of the present invention is shown.

[0019] Figure 4 A three-dimensional structural schematic diagram of the regulating motor, the driving motor and the knife bar of the present invention is shown.

[0020] Figure 5 A three-dimensional structural schematic diagram of the rotating mechanism of the present invention is shown.

[0021] Figure 6 A first three-dimensional structural schematic diagram of the clamping mechanism of the present invention is shown.

[0022] Figure 7 A second three-dimensional structural schematic diagram of the clamping mechanism of the present invention is shown.

[0023] Figure 8 A three-dimensional structural schematic diagram of the protection mechanism of the present invention is shown.

[0024] Fig. 9 A schematic diagram of the three-dimensional structure of the push disk of the present invention is shown.

[0025] Fig.10 A three-dimensional structural schematic diagram of the fixed track of the present invention is shown.

[0026] Fig.11 A three-dimensional structural schematic diagram of the feeding mechanism of the present invention is shown.

[0027] Fig.12 A three-dimensional structural schematic diagram of the elastic rope and the fixed pulley of the present invention is shown.

[0028] Fig.13 A three-dimensional structural schematic diagram of the fixed track, the guide track and the rotating track of the present invention is shown.

[0029] Fig.14 A three-dimensional structural schematic diagram of the roller, dual-axis motor, cylinder, slide plate and clamping plate of the present invention is shown.

[0030] In the figure: 1, bottom box, 2, box body, 3, box door, 4, installation box, 5, screw motor, 6, moving block, 7, horizontal electric guide rail, 8, vertical electric guide rail, 9, adjustment motor, 10, drive motor, 11, knife bar, 12, connecting plate, 13, rotating ring, 14, mounting rod, 15, visual sensor, 161, rotating motor, 162, gear, 171, support plate, 172, placement plate, 173, hydraulic cylinder, 174, clamp Block, 181, sliding frame, 182, spring, 183, stopper, 184, inclined block, 185, pushing plate, 191, fixed track, 192, frame, 193, guide track, 194, rotating track, 195, elastic rope, 196, fixed pulley, 197, moving frame, 198, rotating shaft, 199, roller, 1910, dual-axis motor, 1911, cylinder, 1912, skateboard, 1913, splint, 20, contact wheel. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope and application scope of the present invention are not limited.

[0032] Reference Figure 1-Figure 7 A CNC machine tool based on automobile wheel hub processing includes a bottom box 1, a box body 2, a box door 3, an installation box 4, a screw motor 5, a moving block 6, a horizontal electric guide rail 7, a vertical electric guide rail 8, an adjustment motor 9, a drive motor 10, a knife bar 11, a connecting plate 12, a rotating ring 13, a mounting rod 14, a visual sensor 15, a rotating mechanism and a clamping mechanism. The top of the bottom box 1 is connected to the box body 2 by bolts, and the box door 3 is slidably connected to the left and right sides of the front side of the box body 2. The box door 3 is moved left and right to control the opening and closing of the box door 3. The front side of the box door 3 is a transparent material, and the processing of the automobile wheel hub can be observed through the box door 3. The left and right sides of the box body 2 are connected to the installation box 4 by bolts, and the upper part of the installation box 4 is installed with a screw motor 5. The side of the two installation boxes 4 close to each other is slidably connected with a moving block 6. The lead screw and moving block 6 of the rod motor 5 are connected by threads, and a horizontal electric guide rail 7 is installed between the two moving blocks 6 by bolts, and a vertical electric guide rail 8 is installed on the front side of the slider of the horizontal electric guide rail 7 by bolts, and an adjusting motor 9 is installed on the front side of the slider of the vertical electric guide rail 8 by bolts, and a driving motor 10 is connected to the output shaft of the adjusting motor 9, and a knife rod 11 is connected to the output shaft of the driving motor 10. A connecting plate 12 is connected to the middle part of the right side of the installation box 4 on the left side by bolts, and a rotating ring 13 is rotatably connected to the top of the connecting plate 12, and a mounting rod 14 is connected to the top of the rotating ring 13, and a visual sensor 15 is installed on the upper end of the installation rod 14, and a rotating mechanism for controlling the visual sensor 15 to rotate around the knife rod 11 is provided on the connecting plate 12, and a clamping mechanism for clamping the automobile wheel hub is provided on the installation box 4.

[0033] Reference Figure 5 The rotating mechanism includes a rotating motor 161 and a gear 162 . The rotating motor 161 is installed on the upper part of the connecting plate 12 by bolts. The output shaft of the rotating motor 161 and the rotating ring 13 are driven by the gear 162 .

[0034] Reference Figure 6 and Figure 7 The clamping mechanism includes a support plate 171, a placement plate 172, a hydraulic cylinder 173 and a clamping block 174. Two support plates 171 are connected between the two installation boxes 4 by bolts. The two support plates 171 are symmetrically arranged front and back. The tops of the two support plates 171 are connected to the placement plate 172 by bolts. Hydraulic cylinders 173 are installed at the four corners of the top of the placement plate 172 by bolts. Clamping blocks 174 are connected to the telescopic rods of the hydraulic cylinders 173. The four clamping blocks 174 have notches on the sides close to each other, which can adapt to the contour of the automobile wheel hub, so as to better clamp the automobile wheel hub.

[0035] The staff puts the automobile wheel hub on the placement plate 172, and then controls the telescopic rod of the hydraulic cylinder 173 to extend, driving the four clamping blocks 174 to move in the direction of approaching each other, and the clamping blocks 174 can clamp the automobile wheel hub, and then controls the horizontal electric guide rail 7 to drive the vertical electric guide rail 8 to move to the right, and the vertical electric guide rail 8 drives the knife rod 11 to move to the right, and moves the knife rod 11 to the top of the automobile wheel hub. The screw motor 5 can drive the moving block 6 to move forward and backward, thereby driving the knife rod 11 to move forward and backward, and the vertical electric guide rail 8 can drive the knife rod 11 to move up and down, and the output shaft of the adjustment motor 9 can drive the knife rod 11 to swing back and forth, adjust the angle of the knife rod 11, and the output shaft of the drive motor 10 can drive the knife rod 11 to rotate, and the knife rod 11 can be controlled to process the automobile wheel hub. After the processing is completed, the screw motor 5, the horizontal electric guide rail 7, and the vertical electric guide rail 8 are controlled. The electric guide rail 8 and the adjustment motor 9 move the knife rod 11 back to its original position, so that the knife rod 11 is close to the visual sensor 15, and then the visual sensor 15 is connected to the computer. The visual sensor 15 can take a picture of the knife rod 11. The output shaft of the rotating motor 161 drives the rotating ring 13 to rotate through the gear 162. The rotating ring 13 drives the mounting rod 14 and the visual sensor 15 to rotate. The visual sensor 15 rotates around the knife rod 11, so that the visual sensor 15 can take a full-scale picture of the knife rod 11 and feed back the contour of the knife rod 11 to the computer. The wear condition of the knife rod 11 can be understood through the computer. If the knife rod 11 is worn too much, the staff can replace the knife rod 11 in time. At the same time, the specifications of the knife rod 11 can also be understood through the computer to avoid replacing the wrong knife rod 11, thereby avoiding unqualified processing of the automobile wheel hub.

[0036] Reference Figure 8 and Fig. 9, also includes a protection mechanism, the protection mechanism includes a sliding frame 181, a spring 182, a stopper 183, an inclined block 184 and a pushing plate 185, the sliding frame 181 is slidably connected to the mounting rod 14, the mounting rod 14 is sleeved with a spring 182, the two ends of the spring 182 are respectively connected to the rotating ring 13 and the sliding frame 181, and the spring 182 is sleeved on the mounting rod 14 to prevent the spring 182 from bending, the middle part of the right side of the sliding frame 181 is connected to the stopper 183, the upper part of the right side of the sliding frame 181 is connected to the inclined block 184, the middle part of the driving motor 10 is connected to the pushing plate 185, and the inclined surface of the inclined block 184 faces the pushing plate 185.

[0037] When processing the automobile wheel hub, debris will be generated and will fly everywhere. The box door 3 can block the debris to prevent the debris from flying out of the box body 2 and injuring people. The block 183 can block the debris to prevent the debris from damaging the visual sensor 15. After the automobile wheel hub processing is completed, the screw motor 5, the horizontal electric guide rail 7, the vertical electric guide rail 8 and the adjustment motor 9 are controlled to move the knife rod 11 back to its original position so that the knife rod 11 is close to the visual sensor 15. At this time, the push plate 185 will contact the inclined surface of the inclined plane block 184 and push the inclined plane block 184 to move upward. The inclined plane block 184 drives the sliding frame 181 to move upward, the spring 182 is stretched, and the sliding frame 181 drives the block 183 to move upward, and the block 183 is raised, so that the visual sensor 15 can capture the knife rod 11.

[0038] Reference Figure 10-Figure 14 , also includes a feeding mechanism, the feeding mechanism includes a fixed rail 191, a frame 192, a guide rail 193, a rotating rail 194, an elastic rope 195, a fixed pulley 196, a mobile frame 197, a rotating shaft 198, a roller 199, a dual-axis motor 1910 and a clamping assembly, the left and right sides of the bottom of the box body 2 are connected to the fixed rail 191 by bolts, the left and right sides of the top of the frame 192 are connected to the guide rail 193 by bolts, the rear end of the guide rail 193 is hinged with a rotating rail 194, an elastic rope 195 is connected between the rotating rail 194 and the guide rail 193, and the two guide rails 193 are rotatably connected to the sides away from each other. Wheel 196, elastic rope 195 passes around fixed pulley 196, front and rear sides of mobile frame 197 are rotatably connected with rotating shaft 198, left and right ends of rotating shaft 198 are connected with rollers 199, the roller 199 on the left side is located in the guide track 193 on the left side, the roller 199 on the right side is located in the guide track 193 on the right side, and the roller 199 can roll along the guide track 193 to the rotating track 194 and the fixed track 191, a dual-axis motor 1910 is installed in the middle of the top of the mobile frame 197 by bolts, the output shaft of the dual-axis motor 1910 and the rotating shaft 198 are driven by a pulley group, and a clamping component for clamping the automobile wheel hub is provided on the mobile frame 197.

[0039] Reference Fig.11 and Fig.14 The clamping assembly includes a cylinder 1911, a slide plate 1912 and a clamping plate 1913. The cylinders 1911 are installed on the left and right sides of the top of the mobile frame 197 by bolts. The left and right sides of the mobile frame 197 are slidably connected with the slide plates 1912. The telescopic rods of the two cylinders 1911 are respectively connected to the two slide plates 1912. The two slide plates 1912 are connected to the clamping plates 1913 on the sides close to each other. The two clamping plates 1913 have notches on the sides close to each other, which can adapt to the contour of the car wheel hub, so as to better clamp the car wheel hub.

[0040] Reference Fig.12 , also includes a contact wheel 20, and the contact wheel 20 is rotatably connected to the rear side of the top of the rotating track 194.

[0041] Initially, the telescopic rod of the cylinder 1911 is in an extended state; the staff installs the frame 192 on the ground, and makes the rear end of the rotating track 194 contact the front end of the fixed track 191, and then sets a conveyor belt under the mobile frame 197, through which the unprocessed automobile wheel hub is conveyed to the bottom of the mobile frame 197, and then controls the output shaft of the double-axis motor 1910 to rotate, and the output shaft of the double-axis motor 1910 drives the rotating shaft 198 to rotate through the pulley group, and the rotating shaft 198 drives the roller 199 to rotate, and the roller 199 rolls forward in the guide track 193, so that the mobile frame 197 moves forward, and the mobile frame 197 drives the clamp The plate 1913 moves forward, and moves the two clamping plates 1913 to the periphery of the unprocessed automobile wheel hub. Then, the telescopic rod of the cylinder 1911 is controlled to shorten, and the two slide plates 1912 are driven to move toward each other. The slide plates 1912 drive the two clamping plates 1913 to move toward each other. The clamping plates 1913 clamp the unprocessed automobile wheel hub. Then, the output shaft of the dual-axis motor 1910 is controlled to rotate in the opposite direction, and the roller 199 is driven to rotate in the opposite direction. The roller 199 rolls backward in the guide track 193, so that the moving frame 197 moves backward. The moving frame 197 drives the clamping plates 1913 to move backward. The clamping plates 1913 The unprocessed automobile wheel hub is transported backward and transported to the placement plate 172, and then the telescopic rod of the cylinder 1911 is controlled to extend, driving the two clamping plates 1913 to move away from each other, loosening the unprocessed automobile wheel hub, and then the output shaft of the dual-axis motor 1910 is controlled to rotate, driving the roller 199 to rotate, and the roller 199 rolls forward in the guide track 193, so that the moving frame 197 moves forward, and the moving frame 197 drives the clamping plate 1913 to move forward, and the clamping plate 1913 is removed from the box body 2, and then the staff closes the box body 2, and the box body 2 will contact the rotating track 194 and push The rotating track 194 is moved to make the two rotating tracks 194 rotate towards each other to ensure that the box body 2 can be completely closed, the elastic rope 195 is stretched, and the contact wheel 20 rolls on the box door 3 to avoid friction between the rotating track 194 and the box door 3. Similarly, after the processing of the automobile wheel hub is completed, the above operation can be repeated to transport the processed automobile wheel hub to the conveyor belt, and the processed automobile wheel hub is transported to the next process through the conveyor belt. At the same time, the conveyor belt can transport the next unprocessed automobile wheel hub to the bottom of the mobile frame 197, automatically feeding and unloading, forming a production line, thereby improving the processing efficiency.

[0042] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A CNC machine tool for automobile wheel hub processing, comprising a bottom box (1), a box body (2) and a box door (3), wherein the top of the bottom box (1) is connected to the box body (2), and the front side of the box body (2) is slidably connected to the box door (3), wherein: The invention also comprises an installation box (4), a screw motor (5), a moving block (6), a horizontal electric guide rail (7), a vertical electric guide rail (8), an adjustment motor (9), a drive motor (10), a knife bar (11), a connecting plate (12), a rotating ring (13), a mounting rod (14), a visual sensor (15), a rotating mechanism and a clamping mechanism. The left and right sides of the box body (2) are connected to the installation box (4), the screw motor (5) is installed on the installation box (4), the moving block (6) is slidably connected to the installation box (4), the screw of the screw motor (5) and the moving block (6) are connected by threads, a horizontal electric guide rail (7) is installed between the two moving blocks (6), and a slider on the horizontal electric guide rail (7) is provided. A vertical electric guide rail (8) is installed, an adjusting motor (9) is installed on the slider of the vertical electric guide rail (8), the output shaft of the adjusting motor (9) is connected to a driving motor (10), the output shaft of the driving motor (10) is connected to a knife bar (11), a connecting plate (12) is connected to the installation box (4) on the left side, a rotating ring (13) is rotatably connected to the top of the connecting plate (12), a mounting rod (14) is connected to the top of the rotating ring (13), a visual sensor (15) is installed on the installation rod (14), a rotating mechanism for controlling the visual sensor (15) to rotate around the knife bar (11) is provided on the connecting plate (12), and a clamping mechanism for clamping the wheel hub of the vehicle is provided on the installation box (4).

2. A CNC machine tool for automobile wheel hub processing as claimed in claim 1, characterized in that: The rotating mechanism comprises a rotating motor (161) and a gear (162); the rotating motor (161) is mounted on the connecting plate (12); and the output shaft of the rotating motor (161) and the rotating ring (13) are driven via the gear (162).

3. A CNC machine tool for automobile wheel hub processing as claimed in claim 2, characterized in that: The clamping mechanism comprises a support plate (171), a placement plate (172), a hydraulic cylinder (173) and a clamping block (174); two support plates (171) are connected between the two installation boxes (4); the tops of the two support plates (171) are commonly connected to the placement plate (172); hydraulic cylinders (173) are installed at the four corners of the top of the placement plate (172); and clamping blocks (174) for clamping the automobile wheel hub are connected to the telescopic rods of the hydraulic cylinders (173).

4. A CNC machine tool for automobile wheel hub processing as claimed in claim 3, characterized in that: The device also includes a protection mechanism, which includes a sliding frame (181), a spring (182), a stopper (183), an inclined surface block (184) and a push plate (185). The mounting rod (14) is slidably connected to the sliding frame (181). The spring (182) is connected between the rotating ring (13) and the sliding frame (181). The sliding frame (181) is connected to a stopper (183) for protecting the visual sensor (15). The sliding frame (181) is connected to the inclined surface block (184). The middle part of the driving motor (10) is connected to the push plate (185). The push plate (185) is used to push the inclined surface block (184) to move upward. The inclined surface block (184) drives the stopper (183) to move upward, so that the stopper (183) no longer protects the visual sensor (15).

5. A CNC machine tool for automobile wheel hub processing as claimed in claim 4, characterized in that: The box body (2) also includes a feeding mechanism, which includes a fixed track (191), a frame (192), a guide track (193), a rotating track (194), an elastic rope (195), a fixed pulley (196), a movable frame (197), a rotating shaft (198), a roller (199), a dual-axis motor (1910) and a clamping assembly. The left and right sides of the bottom of the box body (2) are connected to the fixed track (191), the left and right sides of the top of the frame (192) are connected to the guide track (193), the rear end of the guide track (193) is hinged with the rotating track (194), the rotating track (194) and the guide track (193) are connected with an elastic rope (195), and the guide track (1910) is connected to the rotating track (194). 3) are rotatably connected to a fixed pulley (196), an elastic rope (195) passes around the fixed pulley (196), front and rear sides of the movable frame (197) are rotatably connected to a rotating shaft (198), left and right ends of the rotating shaft (198) are connected to rollers (199), the rollers (199) are located in the guide track (193), and the rollers (199) can roll along the guide track (193) to the rotating track (194) and the fixed track (191), a double-axis motor (1910) is installed on the top of the movable frame (197), the output shaft of the double-axis motor (1910) and the rotating shaft (198) are driven by a pulley group, and a clamping assembly for clamping the wheel hub of the vehicle is provided on the movable frame (197).

6. A CNC machine tool for automobile wheel hub processing as claimed in claim 5, characterized in that: The clamping assembly comprises a cylinder (1911), a slide plate (1912) and a clamping plate (1913); the cylinder (1911) is installed on both the left and right sides of the top of the moving frame (197); the slide plates (1912) are slidably connected to both the left and right sides of the moving frame (197); the telescopic rod of the cylinder (1911) is connected to the slide plate (1912); and the slide plates (1913) for clamping the wheel hub of the automobile are connected to the slide plates (1912).

7. A CNC machine tool for automobile wheel hub processing as claimed in claim 6, characterized in that: It also includes a contact wheel (20), and the top of the rotating track (194) is rotatably connected to the contact wheel (20).

8. A CNC machine tool for automobile wheel hub processing as claimed in claim 7, characterized in that: The front side of the box door (3) is made of transparent material.

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