An apparatus for automatically processing the convex arc surface of a guitar fret

Abstract

The utility model discloses an equipment of automatic processing guitar fret surface convex arc surface, including workstation, storage unit, feeding unit, auxiliary positioning unit, transverse movement unit, processing unit, workpiece movement unit and control system, the control system is connected with feeding unit, auxiliary positioning unit, transverse movement unit, processing unit and workpiece movement unit respectively through control line. The utility model only needs manual placement workpiece blank, and the processes such as feeding, sucking workpiece, processing workpiece, releasing workpiece are all automatically completed by machine, and the production efficiency is greatly improved. The utility model carries out automatic profiling processing to workpiece according to profiling die, and guarantees the stability of workpiece processing quality. The utility model does not need manual holding blank to process, and eliminates the security risk.

Description

Technical Field

[0001] This utility model relates to the field of guitar processing technology, specifically to a device for automatically processing the convex arc surface of guitar bridges. Background Technology

[0002] The upper surface of the guitar bridge has a convex arc surface in the middle section and concave arc surfaces at both ends. In the past, the convex arc surface was usually processed manually on a milling machine using a copying mold, which resulted in low production efficiency. Due to manual operation and low precision of the mold and equipment, the product quality was unstable. The spinning of the cutting tool also posed a safety hazard to the operator. Summary of the Invention

[0003] In view of the above-mentioned problems in the existing technology, this utility model proposes an automatic processing device for the convex arc surface of guitar bridge that can improve production efficiency, product stability and reduce safety risks.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automatic processing device for the convex arc surface of a guitar bridge includes a worktable, a storage unit, a feeding unit, an auxiliary positioning unit, a lateral movement unit, a processing unit, a workpiece movement unit, and a control system. The storage unit is installed on the left side of the worktable, the feeding unit is installed on the worktable and located to the left of the storage unit, the auxiliary positioning unit is installed on the worktable and located to the right of the storage unit, the lateral movement unit is installed in the middle of the worktable and spans across the worktable in the left-right direction, the processing unit is installed on the rear side of the worktable, and the workpiece movement unit is installed on the right-middle side of the worktable and moves along the front-back and left-right directions of the worktable. The control system is connected to the feeding unit, the auxiliary positioning unit, the lateral movement unit, the processing unit, and the workpiece movement unit respectively via control lines.

[0006] Furthermore, the storage unit includes a storage box body, a movable stop bar, a movable baffle, locking screws, and a fixed baffle. The storage box body is fixedly mounted on the workbench. The movable stop bar is mounted on the front side of the storage box body, and the fixed baffle is mounted on the rear side of the storage box body. The movable baffle is mounted on the rear side of the fixed baffle via the locking screws. Workpiece blanks are placed inside the storage box, with the front and rear ends of the workpiece blanks contacting the movable stop bar and the fixed baffle, respectively. Openings are provided on both the left and right sides of the bottom of the box body. The height of the openings is greater than the thickness of one workpiece blank but less than the sum of the thicknesses of two workpiece blanks, and the length of the openings is greater than the length of one workpiece blank.

[0007] The feeding unit includes a feeding bracket, a feeding movable plate, a feeding cylinder, a feeding lower tongue, a feeding upper tongue, a workpiece transfer table, and an auxiliary positioning cylinder. The feeding bracket is fixedly installed on the worktable. The feeding movable plate is slidably connected to the feeding bracket and moves left and right along the feeding bracket. The fixed end of the feeding cylinder is fixed to the feeding bracket, and the moving end is connected to the feeding movable plate. The left end of the feeding lower tongue is installed on the right side of the feeding movable plate via a pressure spring, and the left end of the feeding upper tongue is installed on the right side of the feeding movable plate via a pressure spring and is located above the feeding lower tongue.

[0008] The auxiliary positioning unit includes a workpiece transfer table and an auxiliary positioning cylinder. The workpiece transfer table is fixedly installed on the worktable to the right of the storage box. A horizontal positioning stop is provided on the front side of the workpiece transfer table and a vertical positioning stop is provided on the right side. The auxiliary positioning cylinder is installed on the worktable in front of the workpiece transfer table.

[0009] The lateral movement unit includes a lateral support, a lateral cylinder, a lateral movement bracket, a vertical cylinder, a vacuum generator, a lateral track, a finished workpiece suction cup, and a workpiece blank suction cup. The lateral support is a gantry support that spans the worktable in the left-right direction. The lateral movement bracket is slidably connected to the lateral track and moves left and right along the track. The lateral track is fixed to the crossbeam of the lateral support. The fixed end of the lateral cylinder is fixed to the lateral support, and the moving end is connected to the lateral movement bracket. The vertical cylinder and the vacuum generator are both installed inside the lateral movement bracket. The fixed end of the vertical cylinder is fixed to the lateral movement bracket, and the moving end is connected to the vertical movement bracket. The lower left side of the vertical movement bracket is connected to the workpiece blank suction cup, and the lower right side is connected to the finished workpiece suction cup. The vacuum generator is connected to both the workpiece blank suction cup and the finished workpiece suction cup via pipelines. The workpiece blank suction cup is a pressure suction cup.

[0010] The machining unit includes a movable shaft, a movable base, a spindle motor, a template bearing, a spindle cutter, and a spindle base tension cylinder. The spindle motor is fixedly mounted on the movable base, and the rear side of the movable base is mounted on the worktable via the movable shaft. The template bearing and the spindle cutter are mounted on the output shaft of the spindle motor. The fixed end of the spindle base tension cylinder is installed inside the worktable below the movable base, and the moving end is connected to the front side of the movable base.

[0011] The workpiece moving unit includes an X-axis moving motor, a Y-axis moving motor, a moving workpiece platform, a Y-axis track, a workpiece adsorption table, and a contouring mold. The Y-axis track is fixed to the worktable in the front-to-back direction. The moving workpiece platform is slidably connected to the Y-axis track and moves along the front-to-back direction of the Y-axis track. The moving workpiece platform is connected to the Y-axis moving motor, which is mounted on the worktable. The X-axis track is fixed to the moving workpiece platform in the left-to-right direction. The workpiece adsorption table is slidably connected to the X-axis track and moves along the left-to-right direction of the X-axis track. The workpiece adsorption table is connected to the X-axis moving motor, which is mounted on the moving workpiece platform. The contouring mold is fixedly installed in a mold mounting slot on the moving workpiece platform, and the workpiece adsorption table is used to adsorb the workpiece blank.

[0012] Furthermore, the upper surface of the contouring mold has the same dimensions as the upper surface of the workpiece; two positioning cylinders are provided on the lower side of the contouring mold, and the two positioning cylinders are respectively connected to two positioning holes in the mold mounting groove on the moving workpiece platform; the workpiece adsorption stage is connected to the vacuum generator through a pipeline.

[0013] Furthermore, a finished workpiece slide is provided on the right side of the workbench, and a receiving box is provided below the finished workpiece slide.

[0014] Furthermore, the diameter of the template bearing is the same as the diameter of the cutting tool.

[0015] Furthermore, the profiling mold is a replaceable profiling mold.

[0016] Furthermore, the lower feeding tongue, the upper feeding tongue, and the pressure spring constitute a feeding tongue assembly. There are two sets of the feeding tongue assembly, which are installed along the front-back direction on the right side of the feeding movable plate.

[0017] Furthermore, the moving workpiece platform is connected to the Y-axis moving motor via a lead screw and nut structure; the workpiece adsorption table is connected to the X-axis moving motor via a lead screw and nut structure.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This invention only requires manual placement of the workpiece blank; the processes of feeding, picking up, processing, and releasing the workpiece are all completed automatically by the machine, greatly improving production efficiency.

[0020] This invention enables automated contouring of workpieces using a contouring mold, ensuring the stability of workpiece processing quality.

[0021] This invention eliminates the need for manual handling of blanks during processing, thus eliminating safety hazards. Attached Figure Description

[0022] Figure 1 This is a schematic diagram (top view) of the structure of this utility model.

[0023] Figure 2 for Figure 1 Rear view.

[0024] Figure 3 for Figure 1 Front view (receiving status).

[0025] Figure 4 for Figure 1 Front view (part placement status).

[0026] Figure 5 This is a schematic diagram of the shape of the contour mold.

[0027] In the diagram: 1. Movable shaft, 2. Movable base, 3. Spindle motor, 4. Horizontal support, 5. Horizontal cylinder, 6. Feeding movable plate, 7. Feeding cylinder, 8. Workpiece blank, 9. Storage box movable stop bar, 10. Auxiliary positioning cylinder, 11. Template bearing, 12. Spindle cutter, 13. X-axis moving motor, 14. Moving workpiece platform, 15. Finished workpiece slide rail, 16. Y-axis track, 17. X-axis track, 18. Feeding lower tongue, 19. Feeding upper tongue, 20. Storage box movable baffle, 21. Storage box locking screw, 22. Storage box fixed baffle, 23. Horizontal moving support, 24. Vertical cylinder, 25. Vacuum generator, 26. Horizontal track, 27. Finished workpiece suction cup, 28. Copying mold, 29. Workpiece blank suction cup, 30. Spindle base tension cylinder, 31. Pressure spring, 32. Receiving box. Detailed Implementation

[0028] The present invention will now be further described with reference to the accompanying drawings.

[0029] like Figure 1-5 As shown, an automatic device for processing the convex arc surface of a guitar bridge includes a worktable, a storage unit, a feeding unit, an auxiliary positioning unit, a lateral movement unit, a processing unit, a workpiece movement unit, and a control system. The storage unit is installed on the left side of the worktable, the feeding unit is installed on the worktable and located to the left of the storage unit, the auxiliary positioning unit is installed on the worktable and located to the right of the storage unit, the lateral movement unit is installed in the middle of the worktable and spans across the worktable in the left-right direction, the processing unit is installed on the rear side of the worktable, and the workpiece movement unit is installed on the right-middle side of the worktable and moves along the front-back and left-right directions of the worktable. The control system is connected to the feeding unit, the auxiliary positioning unit, the lateral movement unit, the processing unit, and the workpiece movement unit respectively via control lines.

[0030] Furthermore, the storage unit includes a storage box body, a storage box movable stop bar 9, a storage box movable baffle 20, a storage box locking screw 21, and a storage box fixed baffle 22. The storage box body is fixedly installed on the workbench. The storage box movable stop bar 9 is installed on the front side of the storage box body, and the storage box fixed baffle 22 is installed on the rear side of the storage box body. The storage box movable baffle 20 is installed on the rear side of the storage box fixed baffle 22 by the storage box locking screw 21. A workpiece blank 8 is placed inside the storage box body. The front and rear ends of the workpiece blank 8 are in contact with the storage box movable stop bar 9 and the storage box fixed baffle 22, respectively. Openings are provided on both the left and right sides of the bottom of the box body. The height of the opening is greater than the thickness of one workpiece blank 8 and less than the sum of the thicknesses of two workpiece blanks 8. The length of the opening is greater than the length of one workpiece blank 8.

[0031] The feeding unit includes a feeding bracket, a feeding movable plate 6, a feeding cylinder 7, a feeding lower tongue 18, a feeding upper tongue 19, a workpiece transfer table, and an auxiliary positioning cylinder 10. The feeding bracket is fixedly installed on the worktable. The feeding movable plate 6 is slidably connected to the feeding bracket and moves left and right along the feeding bracket. The fixed end of the feeding cylinder 7 is fixed to the feeding bracket, and the moving end is connected to the feeding movable plate 6. The left end of the feeding lower tongue 18 is installed on the right side of the feeding movable plate 6 via a pressure spring 31. The left end of the feeding upper tongue 19 is installed on the right side of the feeding movable plate 6 via a pressure spring 31 and is located above the feeding lower tongue 18.

[0032] The auxiliary positioning unit includes a workpiece transfer table and an auxiliary positioning cylinder 10. The workpiece transfer table is fixedly installed on the worktable to the right of the storage box. A horizontal positioning stop is provided on the front side of the workpiece transfer table and a vertical positioning stop is provided on the right side. The auxiliary positioning cylinder 10 is installed on the worktable in front of the workpiece transfer table.

[0033] The lateral movement unit includes a lateral support 4, a lateral cylinder 5, a lateral movement support 23, a vertical cylinder 24, a vacuum generator 25, a lateral track 26, a finished workpiece suction cup 27, and a workpiece blank suction cup 29. The lateral support 4 is a gantry support that spans the worktable in the left-right direction. The lateral movement support 23 is slidably connected to the lateral track 26 and moves left and right along the lateral track 26. The lateral track 26 is fixed to the crossbeam of the lateral support 4. The fixed end of the lateral cylinder 5 is fixed to the lateral support 4 and moves left and right along the track. The moving end is connected to the horizontal moving bracket 23; the vertical cylinder 24 and the vacuum generator 25 are both installed inside the horizontal moving bracket 23. The fixed end of the vertical cylinder 24 is fixed on the horizontal moving bracket 23, and the moving end is connected to the vertical moving bracket; the lower left side of the vertical moving bracket is connected to the workpiece blank suction cup 29, and the lower right side is connected to the workpiece finished suction cup 27; the vacuum generator 25 is connected to the workpiece blank suction cup 29 and the workpiece finished suction cup 27 respectively through pipelines; the workpiece blank suction cup 29 is a pressure suction cup.

[0034] The processing unit includes a movable shaft 1, a movable base 2, a spindle motor 3, a template bearing 11, a spindle cutter 12, and a spindle base tension cylinder 30. The spindle motor 3 is fixedly mounted on the movable base 2, and the rear side of the movable base 2 is mounted on the worktable via the movable shaft 1. The template bearing 11 and the spindle cutter 12 are mounted on the output shaft of the spindle motor 3. The fixed end of the spindle base tension cylinder 30 is installed inside the worktable below the movable base 2, and the moving end is connected to the front side of the movable base 2.

[0035] The workpiece moving unit includes an X-axis moving motor 13, a Y-axis moving motor, a moving workpiece platform 14, a Y-axis track 16, a workpiece adsorption table, an X-axis track 17, and a contouring mold 28. The Y-axis track 16 is fixed to the worktable in the front-to-back direction. The moving workpiece platform 14 is slidably connected to the Y-axis track 16 and moves along the front-to-back direction of the Y-axis track 16. The moving workpiece platform 14 is connected to the Y-axis moving motor, which is mounted on the worktable. The X-axis track 17 is fixed to the moving workpiece platform 14 in the left-to-right direction. The workpiece adsorption table is slidably connected to the X-axis track 17 and moves along the left-to-right direction of the X-axis track 17. The workpiece adsorption table is connected to the X-axis moving motor 13, which is mounted on the moving workpiece platform 14. The contouring mold 28 is fixedly installed in a mold mounting slot on the moving workpiece platform 14. The workpiece adsorption table is used to adsorb the workpiece blank 8.

[0036] Furthermore, the upper surface of the contour mold 28 has the same dimensions as the upper surface of the workpiece; two positioning cylinders are provided on the lower side of the contour mold 28, and the two positioning cylinders are respectively connected to two positioning holes in the mold mounting groove on the moving workpiece platform 14; the workpiece adsorption stage is connected to the vacuum generator through a pipeline.

[0037] Furthermore, a finished workpiece slide 15 is provided on the right side of the workbench, and a receiving box 32 is provided below the finished workpiece slide 15.

[0038] Furthermore, the diameter of the template bearing 11 is the same as the diameter of the cutting tool.

[0039] Furthermore, the profiling mold 28 is a replaceable profiling mold.

[0040] Furthermore, the lower feeding tongue 18, the upper feeding tongue 19, and the pressure spring 31 constitute a feeding tongue assembly. There are two sets of the feeding tongue assembly, which are installed along the front-back direction on the right side of the feeding movable plate 6.

[0041] Furthermore, the moving workpiece platform 14 is connected to the Y-axis moving motor via a lead screw and nut structure; the workpiece adsorption table is connected to the X-axis moving motor 13 via a lead screw and nut structure.

[0042] The working method of this utility model is as follows:

[0043] A. Stack the workpiece blanks 8 in the storage box; install the contour mold 28 that matches the size of the workpiece in the mold mounting slot on the moving workpiece platform 14;

[0044] B. Power on each unit;

[0045] C. The control system controls the feeding cylinder 7 to move to the right, so that the upper feeding tongue 19 enters the opening at the bottom of the storage box, and the lower feeding tongue 18 moves to the bottom of the storage box to support the bottom workpiece blank 8 in the storage box, and pushes the bottom workpiece blank 8 to the right onto the workpiece transfer table, so that the workpiece blank 8 contacts the vertical positioning stop.

[0046] D. The control system controls the moving end of the auxiliary positioning cylinder 10 to extend backward, so that the workpiece blank 8 on the workpiece transfer table contacts the transverse positioning stop; after the workpiece blank 8 is positioned, the control system controls the moving end of the auxiliary positioning cylinder 10 to retract.

[0047] E. The control system controls the workpiece blank suction cup 29 of the transverse moving unit to move to the workpiece transfer table to adsorb the workpiece blank 8; at the same time, the workpiece finished product suction cup 27 adsorbs the workpiece finished product on the workpiece adsorption table.

[0048] F. The control system controls the workpiece blank suction cup 29 of the transverse moving unit to move to the workpiece adsorption table to place the workpiece blank 8; at the same time, the workpiece finished product suction cup 27 puts the workpiece finished product down above the workpiece finished product slide, and the workpiece finished product slides into the receiving box 32.

[0049] G. The control system controls the workpiece adsorption table to adsorb and fix the workpiece blank 8;

[0050] H. The control system controls the moving workpiece platform 14 to move to the spindle tool 12 and controls the workpiece adsorption table to press against the copying mold 28.

[0051] I. The control system controls the contact between the template bearing 11 and the copying mold 28, controls the movement of the workpiece platform 14 back and forth, and simultaneously controls the spindle cutter 12 to process the workpiece blank 8 until the entire convex arc surface is processed.

[0052] J. Proceed to step C until all workpieces have been processed.

[0053] For ease of description, the front-back, left-right, up-down directions of this utility model are only relative to... Figure 1 This does not constitute any limitation on the present invention.

[0054] This utility model is not limited to this embodiment. Any equivalent concept or modification within the technical scope disclosed in this utility model shall be included in the protection scope of this utility model.

Claims

1. A device for automatically processing the convex arc surface of a guitar bridge, characterized in that: The system includes a worktable, a storage unit, a feeding unit, an auxiliary positioning unit, a lateral movement unit, a processing unit, a workpiece movement unit, and a control system. The storage unit is installed on the left side of the worktable, the feeding unit is installed on the worktable and located to the left of the storage unit, the auxiliary positioning unit is installed on the worktable and located to the right of the storage unit, the lateral movement unit is installed in the middle of the worktable and spans across the worktable in the left-right direction, the processing unit is installed on the rear side of the worktable, and the workpiece movement unit is installed on the right-middle side of the worktable and moves along the front-back and left-right directions of the worktable. The control system is connected to the feeding unit, the auxiliary positioning unit, the lateral movement unit, the processing unit, and the workpiece movement unit respectively via control lines.

2. The equipment for automatically processing the convex arc surface of a guitar bridge according to claim 1, characterized in that: The storage unit includes a storage box body, a storage box movable stop bar (9), a storage box movable baffle (20), a storage box locking screw (21), and a storage box fixed baffle (22). The storage box body is fixedly installed on the workbench. The storage box movable stop bar (9) is installed on the front side of the storage box body. The storage box fixed baffle (22) is installed on the rear side of the storage box body. The storage box movable baffle (20) is installed on the rear side of the storage box fixed baffle (22) through the storage box locking screw (21). The workpiece blank (8) is placed inside the storage box body. The front and rear ends of the workpiece blank (8) are in contact with the storage box movable stop bar (9) and the storage box fixed baffle (22) respectively. Openings are provided on the left and right sides of the bottom of the box body. The height of the opening is greater than the thickness of one workpiece blank (8) and less than the sum of the thicknesses of two workpiece blanks (8). The length of the opening is greater than the length of one workpiece blank (8). The feeding unit includes a feeding bracket, a feeding movable plate (6), a feeding cylinder (7), a feeding lower tongue (18), a feeding upper tongue (19), a workpiece transfer table, and an auxiliary positioning cylinder (10). The feeding bracket is fixedly installed on the worktable. The feeding movable plate (6) is slidably connected to the feeding bracket and moves left and right along the feeding bracket. The fixed end of the feeding cylinder (7) is fixed on the feeding bracket, and the moving end is connected to the feeding movable plate (6). The left end of the feeding lower tongue (18) is installed on the right side of the feeding movable plate (6) through a pressure spring (31). The left end of the feeding upper tongue (19) is installed on the right side of the feeding movable plate (6) through a pressure spring (31) and is located above the feeding lower tongue (18). The auxiliary positioning unit includes a workpiece transfer table and an auxiliary positioning cylinder (10). The workpiece transfer table is fixedly installed on the worktable on the right side of the storage box. A horizontal positioning stop is provided on the front side of the workpiece transfer table and a vertical positioning stop is provided on the right side. The auxiliary positioning cylinder (10) is installed on the worktable in front of the workpiece transfer table. The transverse movement unit includes a transverse support (4), a transverse cylinder (5), a transverse movement support (23), a vertical cylinder (24), a vacuum generator (25), a transverse track (26), a finished workpiece suction cup (27), and a workpiece blank suction cup (29); the transverse support (4) is a gantry support that spans across the worktable in the left-right direction; the transverse movement support (23) is slidably connected to the transverse track (26) and moves left and right along the transverse track (26); the transverse track (26) is fixed on the crossbeam of the transverse support (4); the fixed end of the transverse cylinder (5) is fixed to the transverse support (4). The upper and lower ends of the vertical cylinder (24) are connected to the horizontal moving bracket (23); the vertical cylinder (24) and the vacuum generator (25) are both installed inside the horizontal moving bracket (23). The fixed end of the vertical cylinder (24) is fixed on the horizontal moving bracket (23), and the moving end is connected to the vertical moving bracket. The lower left side of the vertical moving bracket is connected to the workpiece blank suction cup (29), and the lower right side is connected to the workpiece finished suction cup (27). The vacuum generator (25) is connected to the workpiece blank suction cup (29) and the workpiece finished suction cup (27) through pipelines. The workpiece blank suction cup (29) is a pressure suction cup. The processing unit includes a movable shaft (1), a movable base (2), a spindle motor (3), a template bearing (11), a spindle cutter (12), and a spindle base tension cylinder (30); the spindle motor (3) is fixedly mounted on the movable base (2), and the rear side of the movable base (2) is mounted on the worktable via the movable shaft (1); the template bearing (11) and the spindle cutter (12) are mounted on the output shaft of the spindle motor (3); the fixed end of the spindle base tension cylinder (30) is installed inside the worktable below the movable base (2), and the moving end is connected to the front side of the movable base (2); The workpiece moving unit includes an X-axis moving motor (13), a Y-axis moving motor, a moving workpiece platform (14), a Y-axis track (16), a workpiece adsorption table, an X-axis track (17), and a contouring mold (28). The Y-axis track (16) is fixed on the worktable in the front-back direction. The moving workpiece platform (14) is slidably connected to the Y-axis track (16) and moves in the front-back direction along the Y-axis track (16). The moving workpiece platform (14) is connected to the Y-axis moving motor, which is mounted on the worktable. The X-axis track (17) is fixed on the moving workpiece platform (14) in the left-right direction. The workpiece adsorption table is slidably connected to the X-axis track (17) and moves in the left-right direction along the X-axis track (17). The workpiece adsorption table is connected to the X-axis moving motor (13), which is mounted on the moving workpiece platform (14). The contouring mold (28) is fixedly installed in the mold mounting slot on the moving workpiece platform (14). The workpiece adsorption table is used to adsorb the workpiece blank (8).

3. The device for automatically processing the convex arc surface of a guitar bridge according to claim 2, characterized in that: The upper surface of the contour mold (28) has the same dimensions as the upper surface of the workpiece; two positioning cylinders are provided on the lower side of the contour mold (28), and the two positioning cylinders are respectively connected to two positioning holes in the mold mounting groove on the moving workpiece platform (14); the workpiece adsorption stage is connected to the vacuum generator through a pipeline.

4. The equipment for automatically processing the convex arc surface of a guitar bridge according to claim 1, characterized in that: The workbench is provided with a finished workpiece slide (15) on the right side, and a receiving box (32) is provided below the finished workpiece slide (15).

5. The equipment for automatically processing the convex arc surface of a guitar bridge according to claim 2, characterized in that: The diameter of the template bearing (11) is the same as the diameter of the cutting tool.

6. The equipment for automatically processing the convex arc surface of a guitar bridge according to claim 2, characterized in that: The profiling mold (28) is a replaceable profiling mold.

7. The equipment for automatically processing the convex arc surface of a guitar bridge according to claim 2, characterized in that: The lower feeding tongue (18), the upper feeding tongue (19), and the pressure spring (31) constitute the feeding tongue assembly. There are two sets of the feeding tongue assembly, which are installed along the front-back direction on the right side of the feeding movable plate (6).

8. The equipment for automatically processing the convex arc surface of a guitar bridge according to claim 2, characterized in that: The moving workpiece platform (14) is connected to the Y-axis moving motor via a lead screw and nut structure; the workpiece adsorption table is connected to the X-axis moving motor (13) via a lead screw and nut structure.

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