A CNC machining center special-shaped workpiece auxiliary processing device

Abstract

The present invention relates to the technical field of CNC machining centers, and in particular to a CNC machining center special-shaped workpiece auxiliary processing device, including a mounting platform and a mounting plate, etc., wherein the mounting platform is connected to the top of the mounting plate. The present invention can drive the screw to rotate through the output shaft of the screw motor, thereby driving two fractal vises to move in a direction close to each other, the fractal vise can clamp the workpiece, and the fractal structure can distribute more support points on the entire clamping surface, increase the stability and reliability of clamping, so as to adapt to workpieces with complex shapes or irregular surfaces, and the fractal vise can be driven to rotate through the output shaft of the stepper motor, thereby driving the workpiece to rotate and flip the workpiece, and the output shaft of the screw motor can drive the rack to move to the left, and the rack will drive the gear to rotate, thereby driving the workpiece to rotate, automatically rotating and flipping the workpiece, reducing labor costs, improving production efficiency, and ensuring machining accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of CNC machining centers, and in particular to an auxiliary machining device for special-shaped workpieces in a CNC machining center. Background Art

[0002] CNC machining center fixtures are indispensable parts in modern manufacturing. They are mainly used to fix and position workpieces for precise machining on CNC machining centers, ensuring that the workpiece remains stable during machining and preventing machining errors caused by vibration or movement.

[0003] When processing a workpiece, it is generally fixed by a fractal vise. In the actual processing process, it is sometimes necessary to process the bottom and side of the workpiece. The bottom of the workpiece is in contact with the workbench, and the side of the workpiece is in contact with the fractal vise, so processing cannot be performed. The workpiece needs to be rotated and turned over manually. This manual turning process not only consumes a lot of manpower and time, but also reduces the overall production efficiency. Moreover, each rotation and turning requires repositioning and clamping of the workpiece, which can easily cause errors and affect the processing accuracy. Summary of the invention

[0004] In order to overcome the shortcomings that the manual operation process is complicated, the overall production efficiency is reduced, and each rotation and flipping requires repositioning and clamping of the workpiece, which easily causes errors and affects the processing accuracy, the present invention provides an auxiliary processing device for special-shaped workpieces in a CNC machining center.

[0005] The technical implementation scheme of the present invention is: a CNC machining center special-shaped workpiece auxiliary processing device, including a mounting table, a mounting plate, a guide rod, a slide, a dual-axis motor, a screw, a lead screw motor, a lifting plate, a rotating shaft, a stepper motor, a rotating frame, a fractal vise and a rotating mechanism. The top of the mounting table is connected to the mounting plate, the top of the mounting plate is connected to the guide rod, two slides are slidably connected to the guide rod, the top of the mounting plate is installed with a dual-axis motor, the output shafts of the dual-axis motors are connected to screws, the screws are rotatably connected to the mounting plate, the two screws are respectively connected to the two slides by threads, two lead screw motors are installed on the slides, the lead screws of the two lead screw motors on the same slide are commonly connected to the lifting plate by threads, the lifting plates are rotatably connected with the rotating shaft, the lifting plates are installed with stepper motors, the output shafts of the stepper motors are connected to the rotating shaft, the rotating shafts are connected to rotating frames, the rotating frames are installed with fractal vises, and the mounting plate is provided with a rotating mechanism for controlling the rotation of the workpiece.

[0006] As an improvement of the above scheme, the rotating mechanism includes a placement table, a hexagonal sleeve, a hexagonal rod, a placement plate, a slide rail, a slide plate, a rack, a gear, a contact block, a first spring, a push plate, a contact plate, a second spring and a pull plate. The top of the mounting plate is connected to the placement table, the top of the placement table is rotatably connected to the hexagonal sleeve, the hexagonal sleeve is slidably connected to the hexagonal rod, the upper end of the hexagonal rod is connected to a placement plate for placing workpieces, the front and rear sides of the top of the placement table are connected to slide rails, the slide rails are slidably connected to slide plates, the front slide plate is connected to a rack, the hexagonal sleeve is connected to a gear through a one-way clutch, and the lower end of the hexagonal rod is connected to There is a contact block, a first spring is connected between the hexagonal sleeve and the contact block, a push plate is connected to the bottom of the two slides, contact plates are connected to the slides, a second spring is connected between the contact plate and the slide rail, a pull plate is connected to one of the slides, the pull plate is used to pull the contact plate to move to the left, the contact plate drives the push plate to move to the left, the push plate will push the contact block to move upward, the contact block drives the placement plate to move upward, and the workpiece is lifted. The rack will mesh with the gear during the process of moving to the left, and drive the gear to rotate, the gear drives the hexagonal sleeve and the hexagonal rod to rotate, the hexagonal rod drives the placement plate to rotate, and the placement plate drives the workpiece to rotate.

[0007] As an improvement of the above solution, it also includes a collecting box and a drainage pipe. The front and rear sides of the mounting plate are both connected to the collecting boxes, and the collecting boxes are both connected to the drainage pipes.

[0008] As an improvement of the above scheme, it also includes a sliding rod, a third spring, a cleaning plate, a contact shaft and a contact frame. The sliding rod is slidably connected to the rotating frame, the cleaning plate is connected to the sliding rod, the third spring is connected between the rotating frame and the cleaning plate, the contact shaft is connected to the cleaning plate, and the collection box is connected to the contact frame. The contact shaft will contact the contact frame during the movement. Under the action of the contact frame, the cleaning plate will move relatively, and the cleaning plate will clean the debris on the fractal vise.

[0009] As an improvement of the above solution, a baffle is also included, and the slide is connected with a baffle for blocking debris.

[0010] As an improvement of the above solution, a damping sleeve is also included. The top of the placement table is connected with the damping sleeve, and the outside of the hexagonal sleeve is in contact with the inner wall of the damping sleeve.

[0011] As an improvement to the above solution, a ball bearing is also included, and the bottom of the contact block is rotatably connected with the ball bearing.

[0012] As an improvement of the above scheme, it also includes an arc-shaped slider, the lifting plate is provided with an arc-shaped slide groove, the arc-shaped slide groove is slidably connected with the arc-shaped slider, and the arc-shaped slider is connected to the rotating frame.

[0013] The beneficial effects are: 1. The output shaft of the screw motor of the present invention can drive the screw to rotate, thereby driving the two fractal vises to move towards each other, and the fractal vise can clamp the workpiece. The fractal structure can distribute more support points on the entire clamping surface, increase the stability and reliability of clamping, and adapt to workpieces with complex shapes or irregular surfaces. The output shaft of the stepper motor can drive the fractal vise to rotate, thereby driving the workpiece to rotate and flip the workpiece. The output shaft of the screw motor can drive the rack to move to the left, and the rack will drive the gear to rotate, thereby driving the workpiece to rotate, automatically rotating and flipping the workpiece, reducing labor costs, improving production efficiency, and ensuring processing accuracy.

[0014] 2. The cleaning plate can be used to clean the debris stuck between the clamping blocks of the fractal vise, so that the clamping blocks of the fractal vise can rotate normally, ensuring that the clamping blocks of the fractal vise can clamp the workpiece normally, thereby ensuring the stability of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0016] Figure 2 A partial three-dimensional structural schematic diagram of the present invention is shown.

[0017] Figure 3 A cross-sectional view of a lifting plate of the present invention is shown.

[0018] Figure 4 A cross-sectional view of a placement table according to the present invention is shown.

[0019] Figure 5 A three-dimensional structural schematic diagram of the rotating mechanism of the present invention is shown.

[0020] Figure 6 A schematic diagram of the three-dimensional structure of the push plate, the contact plate and the pull plate of the present invention is shown.

[0021] Figure 7 The three-dimensional structural schematic diagram of the cleaning plate, contact shaft, contact frame and baffle of the present invention is shown.

[0022] Figure 8 A cross-sectional view of a rotating frame of the present invention is shown.

[0023] Fig. 9 A three-dimensional structural schematic diagram of the arc-shaped slide groove and the arc-shaped sliding block of the present invention is shown.

[0024] : Names of the numbers in the figure: 1. mounting table, 2. mounting plate, 3. guide rod, 4. slide table, 5. dual-axis motor, 6. screw, 7. lead screw motor, 8. lifting plate, 9. rotating shaft, 10. stepping motor, 11. rotating frame, 12. fractal vise, 13. placing table, 14. hexagonal sleeve, 15. hexagonal rod, 16. placing plate, 17. slide rail, 18. slide plate, 19. rack, 20. gear, 21. contact block, 22. first spring, 23. push plate, 24. contact plate, 25. second spring, 26. pull plate, 27. collecting box, 28. drain pipe, 29. slide rod, 30. third spring, 31. cleaning plate, 32. contact shaft, 33. contact frame, 34. baffle, 35. damping sleeve, 36. ball, 37. arc slide groove, 38. arc slider. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figure 1-Figure 6 As shown, a CNC machining center special-shaped workpiece auxiliary processing device includes a mounting table 1, a mounting plate 2, a guide rod 3, a slide 4, a dual-axis motor 5, a screw 6, a lead screw motor 7, a lifting plate 8, a rotating shaft 9, a stepping motor 10, a rotating frame 11, a fractal vise 12 and a rotating mechanism. The mounting plate 2 is connected to the middle of the top of the mounting table 1 by bolts, and the front and rear sides of the top of the mounting plate 2 are connected to the guide rod 3. Two slides 4 are slidably connected to the two guide rods 3. The two slides 4 are arranged opposite to each other on the left and right. A dual-axis motor 5 is installed in the middle of the top of the mounting plate 2 by bolts. The output shafts of the dual-axis motor 5 are connected to screws 6 through couplings. The two screws 6 are rotatably connected to the mounting plate 2. The two screws 6 They are respectively connected to the two slides 4 by threads, and the threads on the two screw rods 6 are in opposite directions, so that the two slides 4 can move in opposite directions. The front and rear of the slide 4 are installed with screw motors 7 by bolts, and the screws of the two screw motors 7 on the same slide 4 are commonly connected with a lifting plate 8 by threads, and the middle of the upper part of the lifting plate 8 is rotatably connected with a rotating shaft 9. The sides of the two lifting plates 8 away from each other are installed with stepper motors 10 by bolts, and the output shaft of the stepper motor 10 and the rotating shaft 9 are connected by a coupling. The ends of the two rotating shafts 9 close to each other are connected with a rotating frame 11, and a fractal vise 12 is installed in the rotating frame 11. A rotating mechanism for controlling the rotation of the workpiece is provided on the mounting plate 2.

[0027] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the rotating mechanism includes a placing table 13, a hexagonal sleeve 14, a hexagonal rod 15, a placing plate 16, a slide rail 17, a slide plate 18, a rack 19, a gear 20, a contact block 21, a first spring 22, a push plate 23, a contact plate 24, a second spring 25 and a pull plate 26. The placing table 13 is connected to the middle of the top of the mounting plate 2 by bolts. The top of the placing table 13 is rotatably connected to the middle, and the hexagonal sleeve 14 is slidably connected to the hexagonal rod 15. The upper end of the hexagonal rod 15 is connected to the placing plate 16. A circular groove adapted to the placing plate 16 is opened in the middle of the top of the placing table 13. The placing plate 16 is located in the circular groove, and the top of the placing plate 16 is flush with the top of the placing table 13. The front and rear sides of the top of the placing table 13 are both connected to the sliding Rail 17, slide rail 17 is slidably connected with slide plate 18, the top of slide plate 18 on the front side is connected with rack 19 by bolts, the hexagonal sleeve 14 is connected with gear 20 by one-way clutch, the lower end of hexagonal rod 15 is connected with contact block 21, the hexagonal rod 15 is sleeved with first spring 22, the two ends of first spring 22 are respectively connected with hexagonal sleeve 14 and contact block 21, the bottom of two slide plates 18 are commonly connected with push plate 23, the top left side of push plate 23 is inclined surface, push plate 23 pushes contact block 21 to move upward through inclined surface, the two slide plates 18 are connected with contact plate 24 on the side away from each other, the right side of contact plate 24 is connected with second spring 25, the front and rear sides of the right side of left slide table 4 are connected with pull plate 26.

[0028] The staff puts the workpiece on the placement plate 16, and then controls the output shaft of the screw motor 7 to rotate, driving the screw 6 to rotate, the screw 6 drives the two slides 4 to move in the direction of approaching each other, the slides 4 drive the two fractal vises 12 to move in the direction of approaching each other, the fractal vise 12 can clamp the workpiece, the clamping block of the fractal vise 12 is divided into multiple blocks and rotatably connected to each other, the surface of the fractal structure is used to make the contact between the clamping block and the workpiece more compact and uniform, reducing the deformation or damage of the workpiece caused by excessive local pressure, the fractal structure can distribute more support points on the entire clamping surface, increase the stability and reliability of clamping, so as to adapt to workpieces with complex shapes or irregular surfaces, after the workpiece is clamped, turn off the screw motor 7, and then control the CNC The machining center processes the workpiece. When the bottom of the workpiece needs to be processed, the workpiece needs to be turned over. The staff controls the screw motor 7 to drive the lifting plate 8 to move upward, and the lifting plate 8 drives the fractal vise 12 to move upward, thereby driving the workpiece to move upward, lift the workpiece, and make the workpiece and the placement plate 16 out of contact to avoid the workpiece from colliding with the placement plate 16 when turning over. Then the staff controls the output shaft of the stepper motor 10 to rotate 180 degrees, driving the rotating shaft 9 to rotate 180 degrees, and the rotating shaft 9 drives the rotating frame 11 and the fractal vise 12 to rotate 180 degrees, thereby driving the workpiece to rotate 180 degrees to turn the workpiece over. After the turning over is completed, the screw motor 7 is controlled to drive the lifting plate 8 to move downward, lower the workpiece, and make the workpiece and the placement plate 16 disengage. The disk 16 contacts again, and then controls the CNC machining center to process the bottom of the workpiece. When the clamped surface of the workpiece needs to be processed, the workpiece needs to be rotated, and the staff controls the output shaft of the lead screw motor 7 to rotate in the opposite direction, driving the screw 6 to rotate in the opposite direction, and the screw 6 drives the two slides 4 to move away from each other, thereby driving the two fractal vises 12 to move away from each other, and the fractal vise 12 is out of contact with the workpiece, and the workpiece is released. The two slides 4 continue to move away from each other, and the left slide 4 will drive the pull plate 26 to move left, and the pull plate 26 drives the contact plate 24 to move left, the second spring 25 is stretched, and the contact plate 24 drives the slide plate 18 to move left, and the slide plate 18 drives the rack 19 and the push plate 23 to move left. The push plate 23 pushes the contact block 21 to move upward, the first spring 22 is compressed, and the upward movement of the contact block 21 drives the six rhombus rod 15 and the placement plate 16 to move upward, thereby driving the workpiece to move upward, lift the workpiece, and make the workpiece and the placement table 13 out of contact, so as to avoid the friction between the workpiece and the placement table 13 when the workpiece rotates, and then the rack 19 will mesh with the gear 20 and drive the gear 20 to rotate, the gear 20 drives the six rhombus sleeve 14 and the six rhombus rod 15 to rotate, the six rhombus rod 15 drives the placement plate 16 to rotate, thereby driving the workpiece to rotate, when the workpiece rotates to a suitable state, the output shaft of the control screw motor 7 is rotated, driving the two slides 4 to move in a direction close to each other, and the slide 4 drives the two fractal vises 12 to move in a direction close to each other,The slide 4 on the left side drives the pull plate 26 to move to the right, and the pull plate 26 no longer pulls the push plate 23. Under the action of the first spring 22, the contact plate 24 will move to the right, and the rack 19 and the push plate 23 will also move to the right. The rack 19 drives the gear 20 to rotate in the opposite direction. Under the action of the one-way clutch, the gear 20 will not drive the six-diamond sleeve 14 to rotate. Then the rack 19 and the gear 20 are disengaged, and the push plate 23 gradually disengages from the contact block 21. Under the action of the first spring 22, the contact block 21 moves downward, and the contact block 21 drives the six-diamond rod 15 and the placement plate 16 to move downward, lowering the workpiece, so that the workpiece and the placement table 13 are in contact again. At this time, the two fractal vises 12 continue to move in a direction close to each other and clamp the workpiece. The staff can control the CNC machining center to process the clamped surface of the workpiece, automatically rotate and flip the workpiece, reduce labor costs, improve production efficiency, and ensure machining accuracy.

[0029] like Figure 1 As shown, it also includes a collection box 27 and a drainage pipe 28. The front and rear sides of the mounting plate 2 are both connected to the collection box 27 by bolts, and the right side of the collection box 27 is connected to the drainage pipe 28.

[0030] When the workpiece is being processed, cutting fluid will be sprayed on the workpiece to cool the workpiece. A portion of the cutting fluid will flow into the collection box 27, and the cutting fluid will be discharged through the drain pipe 28. The cutting fluid can be recycled to save resources.

[0031] like Figure 7 and Figure 8 As shown, it also includes a slide bar 29, a third spring 30, a cleaning plate 31, a contact shaft 32 and a contact frame 33. A group of slide bars 29 are slidably connected to the upper and lower parts of the rotating frame 11, and each group has three slide bars 29. The three slide bars 29 in the same group are commonly connected to the cleaning plate 31. The slide bars 29 are all sleeved with a third spring 30. The two ends of the third spring 30 are respectively connected to the rotating frame 11 and the cleaning plate 31. The front and rear sides of the cleaning plate 31 are connected to the contact shaft 32. The left and right sides of the top of the collecting box 27 are connected to the contact frame 33 by bolts.

[0032] When processing the workpiece, debris will be generated. The clamping blocks of the fractal vise 12 will rotate when clamping the workpiece, so the debris may be stuck between the clamping blocks of the fractal vise 12; when the two rotating frames 11 move away from each other, the contact shafts 32 on the left and right sides will also move away from each other. When the contact shaft 32 and the contact frame 33 are in contact, the contact frame 33 can block the contact shaft 32, and the rotating frame 11 continues to move, causing the contact shaft 32 to move relatively, and the cleaning plate 31 also moves relatively. The third spring 30 is stretched, and the cleaning plate 31 can clean up the debris stuck between the clamping blocks of the fractal vise 12, so that the clamping blocks of the fractal vise 12 can rotate normally, ensuring that the clamping blocks of the fractal vise 12 can clamp the workpiece normally, thereby ensuring the stability of the workpiece.

[0033] like Figure 7 As shown, a baffle 34 is also included. The sides of the two slides 4 that are away from each other are connected with the baffle 34 by bolts. The baffle 34 can block the debris to prevent the debris from falling onto the screw 6 and causing the slide 4 to get stuck. The front and rear sides of the baffle 34 are inclined downward, and the debris can fall into the collection box 27 along the inclined position of the baffle 34.

[0034] like Figure 4 As shown, a damping sleeve 35 is also included. The damping sleeve 35 is connected to the middle of the top of the placement platform 13, and the outer part of the hexagonal sleeve 14 is in contact with the inner wall of the damping sleeve 35.

[0035] When the rack 19 moves to the right, it will drive the gear 20 to rotate in the opposite direction. Under the action of the one-way clutch, the gear 20 will not drive the hexagonal sleeve 14 to rotate. The placement plate 16 and the workpiece are kept stable by their own gravity. The damping sleeve 35 can increase the resistance to the rotation of the hexagonal sleeve 14 and improve the stability of the hexagonal sleeve 14, thereby improving the stability of the placement plate 16 and the workpiece and preventing the position of the workpiece from shifting due to rotation.

[0036] like Figure 5 As shown, it also includes balls 36. The bottom of the contact block 21 is evenly spaced and rotatably connected to the balls 36. When the push plate 23 pushes the contact block 21, the balls 36 and the push plate 23 are in direct contact, avoiding friction between the push plate 23 and the contact block 21, thereby avoiding wear of the push plate 23 and the contact block 21.

[0037] like Fig. 9 As shown, an arc-shaped slider 38 is also included. An arc-shaped slide groove 37 is opened on the side where the two lifting plates 8 are close to each other. Two arc-shaped sliders 38 are slidably connected in the arc-shaped slide groove 37. The arc-shaped slider 38 is connected to the rotating frame 11.

[0038] When the rotating frame 11 rotates, the arc-shaped sliding groove 37 and the arc-shaped sliding block 38 can guide the rotating frame 11 to improve the stability of the rotating frame 11 .

[0039] 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 machining center special-shaped workpiece auxiliary processing device, comprising a mounting platform (1) and a mounting plate (2), wherein the top of the mounting platform (1) is connected to the mounting plate (2), and wherein: The invention also comprises a guide rod (3), a slide (4), a dual-axis motor (5), a screw rod (6), a lead screw motor (7), a lifting plate (8), a rotating shaft (9), a stepping motor (10), a rotating frame (11), a fractal vise (12) and a rotating mechanism. The top of the mounting plate (2) is connected with a guide rod (3), two slides (4) are slidably connected to the guide rod (3), the top of the mounting plate (2) is installed with a dual-axis motor (5), the output shafts of the dual-axis motor (5) are connected with screw rods (6), the screw rods (6) are rotatably connected to the mounting plate (2), and the two screw rods (6) are respectively connected to the two slides. (4) through threaded connection, two screw motors (7) are installed on the slide (4), the screws of the two screw motors (7) on the same slide (4) are commonly connected to a lifting plate (8) through threads, the lifting plate (8) is rotatably connected to a rotating shaft (9), a stepper motor (10) is installed on the lifting plate (8), the output shaft of the stepper motor (10) is connected to the rotating shaft (9), the rotating shaft (9) is connected to a rotating frame (11), and a fractal vise (12) is installed in the rotating frame (11), and a rotating mechanism for controlling the rotation of the workpiece is provided on the mounting plate (2); The rotating mechanism comprises a placing table (13), a hexagonal sleeve (14), a hexagonal rod (15), a placing plate (16), a slide rail (17), a slide plate (18), a rack (19), a gear (20), a contact block (21), a first spring (22), a push plate (23), a contact plate (24), a second spring (25) and a pull plate (26). The top of the mounting plate (2) is connected to the placing table (13), and the top of the placing table (13) is rotatably connected to the hexagonal sleeve (14). A hexagonal rod (15) is slidably connected in the hexagonal sleeve (14), and a placement plate (16) for placing workpieces is connected to the upper end of the hexagonal rod (15). The top and rear sides of the placement table (13) are connected to slide rails (17), and slide rails (18) are slidably connected to the slide rails (17). The front slide rail (18) is connected to a rack (19). The hexagonal sleeve (14) is connected to a gear (20) via a one-way clutch. The lower end of the hexagonal rod (15) is connected to a contact A first spring (22) is connected between the hexagonal sleeve (14) and the contact block (21), a push plate (23) is commonly connected to the bottom of the two slide plates (18), a contact plate (24) is connected to each of the slide plates (18), a second spring (25) is connected between the contact plate (24) and the slide rail (17), a pull plate (26) is connected to one of the slides (4), the pull plate (26) is used to pull the contact plate (24) to move leftward, and the contact plate (24) drives the push plate When the workpiece is lifted, the rack (19) meshes with the gear (20) during the movement to the left, and drives the gear (20) to rotate. The gear (20) drives the hexagonal sleeve (14) and the hexagonal rod (15) to rotate. The hexagonal rod (15) drives the placement plate (16) to rotate, and the placement plate (16) drives the workpiece to rotate.

2. A CNC machining center special-shaped workpiece auxiliary processing device according to claim 1, characterized in that: It also includes a collection box (27) and a drainage pipe (28). The front and rear sides of the mounting plate (2) are both connected to the collection box (27), and the collection box (27) is connected to the drainage pipe (28).

3. A CNC machining center special-shaped workpiece auxiliary processing device according to claim 2, characterized in that: The invention also comprises a slide bar (29), a third spring (30), a cleaning plate (31), a contact shaft (32) and a contact frame (33). The slide bar (29) is slidably connected to the rotating frame (11). The cleaning plate (31) is connected to the slide bar (29). The third spring (30) is connected between the rotating frame (11) and the cleaning plate (31). The cleaning plate (31) is connected to the contact shaft (32). The collection box (27) is connected to the contact frame (33). The contact shaft (32) contacts the contact frame (33) during the movement. Under the action of the contact frame (33), the cleaning plate (31) moves relatively. The cleaning plate (31) cleans the debris on the fractal vise (12).

4. A CNC machining center special-shaped workpiece auxiliary processing device according to claim 3, characterized in that: It also includes a baffle (34), and the slide table (4) is connected to a baffle (34) for blocking debris.

5. A CNC machining center special-shaped workpiece auxiliary processing device according to claim 4, characterized in that: It also includes a damping sleeve (35), the top of the placement platform (13) is connected to the damping sleeve (35), and the outside of the hexagonal sleeve (14) is in contact with the inner wall of the damping sleeve (35).

6. A CNC machining center special-shaped workpiece auxiliary processing device according to claim 5, characterized in that: It also includes a ball bearing (36), and the bottom of the contact block (21) is rotatably connected to the ball bearing (36).

7. A CNC machining center special-shaped workpiece auxiliary processing device according to claim 6, characterized in that: It also includes an arc-shaped slider (38), the lifting plate (8) is provided with an arc-shaped slide groove (37), the arc-shaped slide groove (37) is slidably connected with the arc-shaped slider (38), and the arc-shaped slider (38) is connected to the rotating frame (11).

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