Equal-angle automatic feeding mechanism for punching

Abstract

The invention relates to the technical field of punching machine machining, in particular to a punching equal-angle automatic feeding mechanism which comprises a punching machine, a punching main shaft, a workbench and a conical fluted disc, the punching main shaft is installed at the output end of the upper portion of the punching machine, the workbench is arranged under the punching main shaft, and the conical fluted disc is rotationally connected to the middle of the top end of the workbench in the circumferential direction; a to-be-machined disc part is mounted at the top end of the conical fluted disc; the equal-angle automatic feeding mechanism for punching further comprises an automatic feeding assembly, the automatic feeding assembly is used for driving the conical fluted disc to rotate at equal angles when the punching main shaft reciprocates each time, and the equal-angle automatic feeding mechanism for punching enables an unmanned operator to manually adjust the positions of disc parts.

Description

Technical Field

[0001] The present invention relates to the technical field of punch processing, and particularly relates to a punching equal-angle automatic feeding mechanism. Background Art

[0002] A punch is a stamping press. In national production, the stamping process has the advantages of saving materials and energy compared with traditional machining, high efficiency, low technical requirements for operators, and the ability to produce products that cannot be achieved by machining through various die applications. Therefore, its uses are becoming more and more extensive.

[0003] Stamping production is mainly for sheet metal. Through dies, blanking, punching, forming, drawing, trimming, fine blanking, shaping, riveting, and extrusion parts, etc. can be made, and it is widely used in various fields. For example, the switch sockets, cups, cupboards, dishes, computer cases, and even missile aircraft parts that we use can all be produced by a punch through dies.

[0004] When traditional punches punch circumferential holes in disc-shaped parts, it is often necessary for operators to manually adjust the position of the disc-shaped parts to achieve the purpose of punching circumferential holes in the disc-shaped parts. This working method requires operators to be highly concentrated, and the labor intensity is also very high. Working for a long time may cause operators to lose concentration and may pose a hidden danger of work-related injuries to operators. Summary of the Invention

[0005] The purpose of the present invention is to provide a punching equal-angle automatic feeding mechanism to solve the technical problems existing in the above background art.

[0006] To achieve the above purpose, the technical solution of the present invention is as follows:

[0007] A punching equal-angle automatic feeding mechanism includes: a punch, a stamping spindle, a workbench, and a bevel gear disc. The upper output end of the punch is provided with a stamping spindle. A workbench is arranged directly below the stamping spindle. The middle part of the top of the workbench is circumferentially and rotatably connected with a bevel gear disc, and a disc-shaped part to be processed is installed at the top of the bevel gear disc. It further includes: an automatic feeding component, and the automatic feeding component is used to drive the bevel gear disc to rotate at equal angles every time the stamping spindle reciprocates.

[0008] Furthermore, a central shaft is fixedly connected to the middle part of the top of the workbench. A circular hole is formed in the middle of the bevel gear disc. The central shaft vertically passes through and is rotatably connected to the circular hole, and the top of the central shaft is flush with the top of the bevel gear disc.

[0009] Further, the automatic feeding assembly includes: a cross arm, a vertical rod, a rack, a gear, a transmission shaft, a floor bracket, a speed changer, a connecting shaft, and bevel gears. The right end of the cross arm is fixedly connected to the outer wall of the left side of the stamping spindle. The left end of the cross arm is fixedly connected with a vertical rod. The lower part of the front end of the vertical rod is fixedly connected with a rack. The front end of the rack is meshed with a gear. The middle of the gear horizontally penetrates and is fixedly connected with a transmission shaft. The transmission shaft horizontally penetrates and is rotatably connected to the upper part of the floor bracket. A ratchet mechanism is arranged at the right end of the transmission shaft. The right end of the ratchet mechanism is connected to the input shaft of the speed changer. The right end of the output shaft of the speed changer is fixedly connected with a connecting shaft. The right end of the connecting shaft is fixedly connected with a bevel gear. The bevel gear is meshed with a bevel gear disk. When the stamping spindle presses downward, the ratchet mechanism does not drive the input shaft of the speed changer to rotate. When the stamping spindle lifts upward, the ratchet mechanism drives the input shaft of the speed changer to rotate.

[0010] Further, it also includes: a bearing. A horizontally penetrating mounting hole is provided in the upper part of the floor bracket. The transmission shaft is rotatably connected to the mounting hole through the bearing.

[0011] Further, the ratchet mechanism includes: a ratchet, a wheel disk, a connecting shaft, a pawl, a reed seat, and a reed. The left end of the ratchet is coaxially fixedly connected to the right end of the transmission shaft. The wheel disk is arranged coaxially with the ratchet. The left end face of the wheel disk has a clearance fit with the right end face of the ratchet. The right end of the wheel disk is fixedly connected to the input shaft of the speed changer. Two connecting shafts are symmetrically arranged at the center near the edge of the left end of the wheel disk. One end of a pawl is hinged to the connecting shaft. The other end of the pawl is in clamping fit with the ratchet. One end of a reed is in contact fit with the outer wall of the pawl on the side away from the center of the ratchet. The other end of the reed is fixedly connected to the wheel disk through the reed seat.

[0012] Further, the elastic force provided by the reed is greater than the gravity of the pawl. When the stamping spindle presses downward and the ratchet rotates counterclockwise, the driving force acting on the two reeds through the two pawls and transmitted to the wheel disk by the reed seat is less than the frictional force between the bevel gear disk and the workbench.

[0013] Further, it also includes: an L-shaped machine base. The speed changer is fixedly installed at the right top end of the L-shaped machine base. The left end of the L-shaped machine base is fixedly installed on the floor bracket.

[0014] Further, the speed changer is an MB07 planetary friction stepless speed changer.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] By coaxially and fixedly installing the disk-shaped part to be processed at the top of the bevel gear disk, during the process of the stamping spindle on the punching press stamping the disk-shaped part to be processed, when the stamping spindle completes a stamping operation and resets, driven by the automatic feeding component, the disk-shaped part at the top of the bevel gear disk rotates by a certain angle. In each subsequent stamping operation, the disk-shaped part will rotate by the same angle, thus completing the circumferential punching of the disk-shaped part. During the entire punching process, there is no need for the operator to manually adjust the position of the disk-shaped part; at the same time, the labor intensity of the operator is reduced, and the risk of work-related injuries to the operator is reduced. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a transverse longitudinal sectional view of the present invention at the transmission shaft;

[0019] Figure 3 is a longitudinal sectional view of the present invention at the reed;

[0020] The reference numerals in the drawings are: 1 - punching press, 2 - stamping spindle, 3 - workbench, 4 - central shaft, 5 - bevel gear disk, 6 - cross arm, 7 - vertical rod, 8 - rack, 9 - gear, 10 - transmission shaft, 11 - bearing, 12 - floor bracket, 13 - ratchet wheel, 14 - disk, 15 - connecting shaft, 16 - pawl, 17 - reed seat, 18 - reed, 19 - speed changer, 20 - L-shaped machine base, 21 - connecting shaft, 22 - bevel gear. Detailed Embodiment

[0021] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0022] See Figures 1 to 3 As shown, a punching equal-angle automatic feeding mechanism includes: a punching press 1, a stamping spindle 2, a workbench 3, and a bevel gear disk 5. The upper output end of the punching press 1 is equipped with a stamping spindle 2. A workbench 3 is arranged directly below the stamping spindle 2. The middle part of the top of the workbench 3 is circumferentially and rotatably connected with a bevel gear disk 5. A disk-shaped part to be processed is installed at the top of the bevel gear disk 5; it further includes: an automatic feeding component, which is used to drive the bevel gear disk 5 to rotate at an equal angle every time the stamping spindle 2 reciprocates.

[0023] In this embodiment, a central shaft 4 is fixedly connected to the middle part of the top of the workbench 3. A circular hole is opened in the middle of the bevel gear disk 5. The central shaft 4 vertically penetrates and is rotatably connected to the circular hole. The top of the central shaft 4 is flush with the top of the bevel gear disk 5.

[0024] In this embodiment, the automatic feeding assembly includes a cross arm 6, a vertical rod 7, a rack 8, a gear 9, a transmission shaft 10, a floor bracket 12, a speed variator 19, a connecting shaft 21, and a bevel gear 22. The right end of the cross arm 6 is fixedly connected to the left side of the outer wall of the stamping main shaft 2. The left end of the cross arm 6 is fixedly connected with a vertical rod 7. The lower part of the front end of the vertical rod 7 is fixedly connected with a rack 8. The front end of the rack 8 is engaged with a gear 9. The middle part of the gear 9 horizontally penetrates and is fixedly connected with a transmission shaft 10. The transmission shaft 10 horizontally penetrates and is rotatably connected to the upper part of the floor bracket 12. A ratchet mechanism is arranged at the right end of the transmission shaft 10. The right end of the ratchet mechanism is connected to the input shaft of the speed variator 19. The right end of the output shaft of the speed variator 19 is fixedly connected with a connecting shaft 21. The right end of the connecting shaft 21 is fixedly connected with a bevel gear 22. The bevel gear 22 is engaged with a bevel gear disc 5. When the stamping main shaft 2 presses downward, the ratchet mechanism does not drive the input shaft of the speed variator 19 to rotate. When the stamping main shaft 2 lifts upward, the ratchet mechanism drives the input shaft of the speed variator 19 to rotate.

[0025] In this embodiment, the equal-angle automatic feeding mechanism for punching also includes a bearing 11. A horizontally penetrating mounting hole is formed in the upper part of the floor bracket 12. The transmission shaft 10 is rotatably connected in the mounting hole through the bearing 11.

[0026] In this embodiment, the ratchet mechanism includes a ratchet 13, a wheel disc 14, a connecting shaft 15, a pawl 16, a reed seat 17, and a reed 18. The left end of the ratchet 13 is coaxially and fixedly connected to the right end of the transmission shaft 10. The wheel disc 14 is arranged coaxially with the ratchet 13. The left end face of the wheel disc 14 is in clearance fit with the right end face of the ratchet 13. The right end of the wheel disc 14 is fixedly connected to the input shaft of the speed variator 19. Two connecting shafts 15 are symmetrically arranged at the position near the edge of the left end of the wheel disc 14. One end of a pawl 16 is hinged on the connecting shaft 15. The other end of the pawl 16 is in snap fit with the ratchet 13. One end of a reed 18 is in contact fit with the outer wall of the pawl 16 on the side away from the axis of the ratchet 13. The other end of the reed 18 is fixedly connected to the wheel disc 14 through the reed seat 17.

[0027] In this embodiment, the elastic force provided by the reed 18 is greater than the gravity of the pawl 16, so that the pawl 16 always fits on the ratchet 13. When the stamping main shaft 2 presses downward and the ratchet 13 rotates counterclockwise, the driving force acting on the two reeds 18 through the two pawls 16 and transmitted to the wheel disc 14 by the reed seat 17 is less than the sum of the gravity of the two connecting shafts 15, the two pawls 16, the two reeds 18, and the two reed seats 17 and the friction force between the bevel gear disc 5 and the workbench 3, ensuring that the bevel gear disc 5 does not rotate when the stamping main shaft 2 presses downward.

[0028] In this embodiment, the equal-angle automatic feeding mechanism for punching also includes an L-shaped machine base 20. The speed variator 19 is fixedly installed at the right top end of the L-shaped machine base 20. The left end of the L-shaped machine base 20 is fixedly installed on the floor bracket 12. The speed variator 19 is an MB07 planetary friction stepless speed variator.

[0029] Working principle: The disk-shaped part to be processed is installed at the top end of the bevel gear disk 5. When the punching machine 1 punches the first hole, the rack 8 drives the gear 9 to rotate, which is transmitted to the ratchet mechanism. The ratchet mechanism is unloaded and does not drive the subsequent speed changer 19 to move. When the main shaft 2 of the punching machine is lifted, the rack 8 drives the gear 9 to rotate, which is transmitted to the ratchet mechanism. The ratchet mechanism is loaded and drives the subsequent speed changer 19 to rotate. The speed changer 19 drives the bevel gear 22 to rotate through the connecting shaft 21, and then drives the bevel gear disk 5 to rotate to provide an equal-angle position rotation for the disk-shaped part to be punched. During its working process, the power is completely provided when the main shaft of the punching machine is lifted, and it does not affect the kinetic energy when the punching machine punches holes, achieving multiple benefits at once.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0031] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any person skilled in the relevant art, without departing from the scope of the technical solution of the present invention, based on the technical essence of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments still fall within the protection scope of the technical solution of the present invention.

Claims

1. A punching equal angle automatic feeding mechanism, characterized in that: include: A punch press (1), a punching spindle (2), a workbench (3) and a bevel gear disc (5), wherein the punch press (1) is provided with a punching spindle (2) at the upper output end, a workbench (3) is provided directly below the punching spindle (2), a bevel gear disc (5) is rotatably connected to the middle of the top end of the workbench (3), and a disc-like part to be processed is installed at the top end of the bevel gear disc (5); and the punch press (1) also includes an automatic feeding assembly, wherein the automatic feeding assembly is used to drive the bevel gear disc (5) to rotate at an equal angle each time the punching spindle (2) reciprocates.

2. The punching equal-angle automatic feeding mechanism according to claim 1, characterized in that: A central shaft (4) is fixedly connected to the middle of the top of the workbench (3); a circular hole is opened in the middle of the bevel gear disc (5); the central shaft (4) vertically penetrates and is rotatably connected to the circular hole; the top of the central shaft (4) is flush with the top of the bevel gear disc (5).

3. The punching equal-angle automatic feeding mechanism according to claim 1 is characterized in that: The automatic feeding assembly comprises: a cross arm (6), a vertical rod (7), a rack (8), a gear (9), a transmission shaft (10), a floor stand (12), a speed changer (19), a connecting shaft (21) and a bevel gear (22), wherein the right end of the cross arm (6) is fixedly connected to the left side of the outer wall of the punching spindle (2), the left end of the cross arm (6) is fixedly connected to the vertical rod (7), the front end lower part of the vertical rod (7) is fixedly connected to the rack (8), the front end of the rack (8) is meshed with the gear (9), the middle part of the gear (9) is transversely penetrated and fixedly connected with the transmission shaft (10), and the transmission shaft (10) transversely penetrates The transmission shaft (10) is passed through and rotatably connected to the upper part of the floor bracket (12); a ratchet mechanism is arranged at the right end of the transmission shaft (10); the right end of the ratchet mechanism is connected to the input shaft of the speed changer (19); the right end of the output shaft of the speed changer (19) is fixedly connected to a connecting shaft (21); the right end of the connecting shaft (21) is fixedly connected to a bevel gear (22); the bevel gear (22) meshes with a bevel gear disc (5); when the stamping spindle (2) is stamping downward, the ratchet mechanism does not drive the input shaft of the speed changer (19) to rotate; when the stamping spindle (2) is lifted upward, the ratchet mechanism drives the input shaft of the speed changer (19) to rotate.

4. The punching equal-angle automatic feeding mechanism according to claim 3 is characterized in that: Also includes: A bearing (11), a transversely penetrating mounting hole is provided on the upper portion of the floor bracket (12), and the transmission shaft (10) is rotatably connected in the mounting hole via the bearing (11).

5. The punching equal-angle automatic feeding mechanism according to claim 3 is characterized in that: The ratchet mechanism comprises: a ratchet (13), a wheel disc (14), a connecting shaft (15), a pawl (16), a leaf spring seat (17) and a leaf spring (18); the left end of the ratchet (13) is coaxially fixedly connected to the right end of the transmission shaft (10); the wheel disc (14) and the ratchet (13) are coaxially arranged; the left end surface of the wheel disc (14) and the right end surface of the ratchet (13) are clearance-matched; the right end of the wheel disc (14) is fixedly connected to the input shaft of the transmission (19); Two connecting shafts (15) are symmetrically arranged at the center of the left end of the wheel disc (14) near the edge, one end of a pawl (16) is hinged on the connecting shaft (15), the other end of the pawl (16) is snap-fitted with the ratchet (13), one end of a spring (18) is contacted and fitted on the outer wall of the pawl (16) away from the axis of the ratchet (13), and the other end of the spring (18) is fixedly connected to the wheel disc (14) through a spring seat (17).

6. The punching equal-angle automatic feeding mechanism according to claim 5, characterized in that: The elastic force provided by the spring leaf (18) is greater than the weight of the ratchet (16); when the punching spindle (2) punches downward, the ratchet wheel (13) rotates counterclockwise, and the sum of the driving force acting on the two spring leaves (18) through the two ratchet pawls (16) and transmitted to the wheel disc (14) by the spring leaf seat (17) and the weight of the two connecting shafts (15), the two ratchet pawls (16), the two spring leaves (18) and the two spring leaf seats (17) is less than the friction force between the bevel gear disc (5) and the workbench (3).

7. The punching equal-angle automatic feeding mechanism according to claim 3 is characterized in that: Also includes: An L-shaped machine base (20), the speed changer (19) is fixedly mounted on the top right side of the L-shaped machine base (20), and the left end of the L-shaped machine base (20) is fixedly mounted on a floor bracket (12).

8. The punching equal-angle automatic feeding mechanism according to claim 3 is characterized in that: The speed changer (19) is an MB07 planetary friction stepless speed changer.

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