Punching machine

Abstract

The invention discloses a punching machine, and relates to the technical field of terminal punching. A punching machine comprises a machine frame, the machine frame is provided with a containing table used for containing terminals, the machine frame is further provided with a driving device and a position adjusting device, and the driving device is connected with a punching head through the position adjusting device. The position adjusting device comprises a transmission mechanism connected to the punching head, the transmission mechanism is configured to move synchronously with the punching head, and the transmission mechanism is connected with the driving device; the rack is further provided with a driving mechanism connected with the transmission mechanism, and the driving mechanism is configured to be capable of driving the punching head to be close to or away from the containing table through the transmission mechanism. The stamping feeding amount can be adjusted conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of terminal stamping, and in particular to a stamping machine. Background Art

[0002] Terminal blocks are an accessory product used to achieve electrical connections. They are usually used to provide reliable connection points for transmitting current, signals or data. With the widespread use of electrical equipment, the use of terminal blocks has continued to increase accordingly and the types of terminals have also increased.

[0003] The terminal block is usually made of a conductive material such as metal or alloy to ensure good physical and electrical connection. Such a terminal block usually has a specific shape, and such a shape is usually punched out by a stamping device.

[0004] Usually, factories will purchase general-purpose stamping equipment such as stamping machines or riveting machines, and achieve mass production of terminals by manually controlling the stamping equipment and assisting workers.

[0005] Typically, the stamping equipment includes a placement table, a driving unit and a stamping head; the stamping is completed by placing the terminal blank on the placement table and then using the driving unit to drive the stamping head to move.

[0006] However, sometimes users want to be able to adjust the punch feed rate to meet a wider range of usage needs. The punch head of the general punching equipment is not easy to adjust the position, and the drive unit is not easy to control the punch feed rate, which makes it easy to crush the terminal and the production needs cannot be met. Summary of the invention

[0007] In order to facilitate the adjustment of the stamping feed amount, the present application provides a stamping machine.

[0008] The present application provides a punching machine adopting the following technical solution: A punching machine comprises a frame, the frame is provided with a placement table for placing terminals, the frame is also provided with a driving device and a positioning device, the driving device is connected to a punching head via the positioning device; The positioning device includes a transmission mechanism connected to the punch head, the transmission mechanism is configured to be able to move synchronously with the punch head, and the transmission mechanism is connected to the driving device; the frame is also provided with a driving mechanism connected to the transmission mechanism, and the driving mechanism is configured to be able to drive the punch head close to / away from the placement table through the transmission mechanism.

[0009] By adopting the above technical solution, after placing the terminal on the placement table, the driving device can drive the punch head to move back and forth to punch the terminal; and the driving mechanism can drive the punch head to approach or move away from the terminal through the transmission mechanism to adjust the punching feed amount of the punch head to the terminal.

[0010] Preferably, the driving device includes a linkage column connected to the positioning device, the linkage column is connected to a connecting rod mechanism, the connecting rod mechanism is connected to a driving mechanism, and the driving mechanism is configured to be able to drive the linkage column to move through the connecting rod mechanism, thereby driving the punch head to move.

[0011] By adopting the above technical solution, the driving mechanism is driven to drive the connecting rod mechanism to work, thereby driving the punch head to move for punching.

[0012] Preferably, the connecting rod mechanism includes a rotating shaft rotatably connected to the frame, and the rotating shaft is connected to the driving mechanism; a laterally arranged connecting rod 1 is eccentrically connected to the rotating shaft, and the connecting rod 1 is hinged to a connecting rod 2, and an end of the connecting rod 2 away from the connecting rod 1 is hinged to a linkage column; an end of the connecting rod 1 away from the rotating shaft is also connected to a slider, and a mounting seat is provided on the frame, and a laterally arranged sliding groove is opened on the mounting seat, and the slider is slidably connected to the sliding groove; the rotating shaft is configured to be able to rotate to drive the connecting rod 1 to move back and forth, thereby driving the connecting rod 2 to swing and then driving the linkage column to move back and forth.

[0013] By adopting the above technical solution, the driving mechanism can drive the rotating shaft to rotate, thereby driving the connecting rod 1 to move back and forth. The reciprocating movement of the connecting rod 1 will drive the connecting rod 2 to swing, thereby driving the linkage column to move, and then driving the punch head to move up and down through the positioning device.

[0014] Preferably, the connecting rod mechanism also includes connecting rod three, connecting rod three is hinged to connecting rod one, and one end of connecting rod three away from connecting rod one is hinged with a dynamic balancing block, the dynamic balancing block is slidably connected to the frame, the dynamic balancing block and the linkage column are respectively located on both sides of connecting rod one, and the rotating shaft is configured to be able to rotate to drive connecting rod one to move back and forth, thereby driving connecting rod three to swing and then driving the dynamic balancing block to move back and forth.

[0015] By adopting the above technical solution, the movement of connecting rod one drives connecting rod two and connecting rod three to swing simultaneously, thereby driving the dynamic balancing block and the linkage column to work simultaneously. The design is intended to overcome the unbalanced force when the present application is working on the one hand, and to reduce the vibration generated when the present application is working on the other hand, thereby reducing additional energy loss.

[0016] Preferably, the driving mechanism includes a worm rotatably connected to a frame, and the frame is also provided with a synchronous belt transmission assembly connected to the worm; a mounting sleeve is provided on the frame, and the mounting sleeve is rotatably connected to a worm wheel, and the worm is meshed with the worm wheel; the worm wheel is connected to a transmission mechanism, and the worm wheel is configured to be able to input rotational force to the transmission mechanism and the transmission mechanism can move relative to the worm wheel.

[0017] By adopting the above technical solution, the synchronous belt transmission assembly can drive the worm to rotate, thereby driving the worm wheel to rotate and then driving the transmission mechanism to work.

[0018] Preferably, the transmission mechanism includes a connecting shaft, a connecting hole is provided at the end of the worm gear, the connecting shaft is slidably connected to the connecting hole and the worm gear can drive the connecting shaft to rotate; an installation cavity is provided in the punching head, a gear transmission assembly is provided in the installation cavity, the connecting shaft is connected to the gear transmission assembly, and the gear transmission assembly is also connected to the linkage column.

[0019] By adopting the above technical solution, the rotation of the worm gear can drive the connecting shaft to rotate, thereby driving the linkage column to move through the gear transmission assembly and then changing the position of the linkage column relative to the punch head.

[0020] Preferably, the gear transmission assembly includes gear one arranged on the connecting shaft, gear two and gear three are arranged in the mounting cavity, gear two and gear three are both rotatably connected to the punching head, gear one is meshed with gear two, gear two is meshed with gear three, and gear three is threadedly connected to the linkage column.

[0021] By adopting the above technical solution, the rotation of the connecting shaft will drive gear one, gear two and gear three to rotate, thereby driving the linkage column to move back and forth.

[0022] Preferably, the connecting shaft includes a ridge on the side wall, a groove is formed on the inner wall of the connecting hole, and the ridge is slidably connected to the groove.

[0023] Preferably, a guide bar is provided on the frame, a guide groove is formed on the punching head, and the guide bar is slidably connected to the guide groove.

[0024] By adopting the above technical solution, the cooperation between the guide strip and the guide groove can guide the movement of the punching head.

[0025] In summary, the present invention includes at least one of the following beneficial technical effects: 1. After placing the terminal on the placement table, the driving device can drive the punch head to move back and forth to punch the terminal; and the driving mechanism can drive the punch head to approach or move away from the terminal through the transmission mechanism to adjust the punching feed amount of the punch head to the terminal; 2. The design that the movement of connecting rod 1 drives connecting rod 2 and connecting rod 3 to swing simultaneously, thereby driving the dynamic balancing block and the linkage column to work simultaneously is intended to overcome the unbalanced force when the present application is working, and on the other hand, to reduce the vibration generated when the present application is working, thereby reducing additional energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a punching machine in an embodiment of the present application; Figure 2 is an overall cross-sectional view of a punching machine in an embodiment of the present application; Figure 3 It is a structural diagram used to reflect the connecting rod mechanism; Figure 4 yes Figure 2 A magnified view of part A; Figure 5 It is a schematic diagram for reflecting the structure of the synchronous belt drive assembly; Figure 6 It is a schematic diagram for reflecting the structure of the groove; Figure 7 yes Figure 2 Enlarged view of part B.

[0027] Markings in the attached drawings: 1, frame; 11, guide hole; 12, guide sleeve; 13, guide strip; 2, placement table; 3, driving device; 31, linkage column; 32, connecting rod mechanism; 321, rotating shaft; 322, connecting rod 1; 323, connecting rod 2; 324, slider; 325, mounting seat; 3251, slide groove; 326, connecting rod 3; 327, dynamic balancing block; 3271, guide column; 33, driving mechanism; 4, positioning device; 41. Transmission mechanism; 411. Connecting shaft; 4111. Raised ridge; 412. Gear transmission assembly; 4121. Gear one; 4122. Gear two; 4123. Gear three; 42. Driving mechanism; 421. Worm; 422. Synchronous belt transmission assembly; 423. Mounting sleeve; 424. Worm wheel; 4241. Connecting hole; 42411. Groove; 5. Punch head; 51. Mounting cavity; 52. Accommodating hole; 53. Guide groove. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0029] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] The embodiment of the present application discloses a punching machine, which is used to facilitate the adjustment of the punching feed amount of the terminal.

[0031] Reference Figure 1 and Figure 2 A stamping machine includes a frame 1, the frame 1 is provided with a placement table 2 for placing terminals, the frame 1 is also provided with a driving device 3 and a positioning device 4, the driving device 3 is connected to a punch head 5 through the positioning device 4, in actual use, in order to facilitate the punching of the terminal, an upper die will be installed at the lower end of the punch head 5, and a lower die will be installed at the upper end of the placement table 2, based on the relative movement of the upper die and the lower die, the stamping can be completed easily, and the stamping feed amount in this application refers to the depth of the upper die entering the lower die.

[0032] The terminal is placed on the placement table 2, and the driving device 3 is driven to drive the punch head 5 to move downward to punch the terminal; when the punching feed amount of the terminal needs to be adjusted, the driving adjustment device 4 drives the punch head 5 to move.

[0033] Reference Figure 2 and Figure 3 The driving device 3 includes a linkage column 31 connected to the positioning device 4. The linkage column 31 is vertically arranged and can move up and down. In this embodiment, there are two linkage columns 31. The linkage column 31 is connected to a connecting rod mechanism 32. The connecting rod mechanism 32 is connected to a driving mechanism 33. The driving mechanism 33 can drive the linkage column 31 to move up and down through the connecting rod mechanism 32, thereby driving the punch head 5 to move up and down through the positioning device 4. In the present application, the driving mechanism 33 can input a rotational force to the connecting rod mechanism 32 to drive the connecting rod mechanism 32 to work. Specifically, the driving mechanism 33 is, for example, a belt transmission mechanism or a gear transmission mechanism.

[0034] Reference Figure 2 and Figure 3 The connecting rod mechanism 32 includes a rotating shaft 321 rotatably connected to the frame 1, the rotating shaft 321 is connected to the driving mechanism 33, and the driving mechanism 33 can drive the rotating shaft 321 to rotate; Figure 4The eccentric distance between the rotation center of the rotating shaft 321 and the rotation center of the connecting rod 322 is twice as large as the eccentric distance between the rotating shaft 321 and the connecting rod 322. Each connecting rod 322 is hinged with a connecting rod 2 323. The end of the connecting rod 2 323 away from the connecting rod 1 322 is hinged with the corresponding linkage column 31. Specifically, the connecting rod 2 323 is tilted downward. The end of the connecting rod 1 322 away from the rotating shaft 321 is also connected to a slider 324. A mounting seat 325 is provided on the frame 1. A horizontally arranged sliding groove 3251 is opened on the mounting seat 325. The slider 324 is slidably connected to the sliding groove 3251.

[0035] The rotation of the rotating shaft 321 will drive the connecting rod 1 322 to move back and forth, thereby driving the connecting rod 2 323 to swing and then driving the linkage column 31 to move back and forth up and down. The linkage column 31 that moves back and forth up and down will drive the punch head 5 to move back and forth up and down through the positioning device 4.

[0036] Reference Figure 2 and Figure 3 The connecting rod mechanism 32 also includes a connecting rod three 326, which is hinged to the connecting rod one 322. The connecting rod three 326 and the connecting rod two 323 are symmetrically arranged. The movement of the connecting rod three 326 is synchronized with the movement of the connecting rod two 323. The end of the connecting rod three 326 away from the connecting rod one 322 is hinged with a dynamic balancing block 327, and the dynamic balancing block 327 is slidably connected to the frame 1. The dynamic balancing block 327 is located above the connecting rod one 322, and the linkage column 31 is located below the connecting rod one 322. Specifically, the dynamic balancing block 327 includes a guide column 3271 at the top, and a guide hole 11 is opened on the frame 1. The guide column 3271 is slidably connected to the guide hole 11. The dynamic balancing block 327 can move up and down, and the movement of the dynamic balancing block 327 is synchronized with the movement of the linkage column 31. When the dynamic balancing block 327 moves upward, the linkage column 31 moves downward. The dynamic balancing block 327 has a certain weight. The specific structure of the dynamic balancing block 327 is the prior art and is not described here.

[0037] The rotation of the rotating shaft 321 drives the connecting rod 1 322 to move back and forth, and can also drive the connecting rod 3 326 to swing, and then drive the dynamic balance block 327 to move back and forth up and down.

[0038] The connecting rod mechanism 32 usually generates a compensating balancing force due to various forces during operation. In the present application, this unbalanced force is caused by the reciprocating movement of the eccentrically arranged connecting rod 1 322 driven by the rotating shaft 321 and the swing of the connecting rod 2 323 and the connecting rod 3 326. The dynamic balancing block 327 can weaken the unbalanced force during the operation of the present application to ensure the stable operation of the present application. The weight of the dynamic balancing block 327 itself can also reduce the vibration during the operation of the present application, which can reduce the stability of the operation of the present application and extend its service life.

[0039] Reference Figure 2 and Figure 3 The positioning device 4 includes a transmission mechanism 41 connected to the punch head 5, the transmission mechanism 41 can move synchronously with the punch head 5, and the transmission mechanism 41 is connected to the linkage column 31; Figure 4 The frame 1 is also provided with a driving mechanism 42 connected to the transmission mechanism 41. The driving mechanism 42 can drive the punch head 5 to approach / move away from the placement table 2 through the transmission mechanism 41 to adjust the punching feed amount.

[0040] Reference Figure 3 and Figure 4 The driving mechanism 42 includes a worm 421 rotatably connected to the frame 1, combined with Figure 5 The frame 1 is also provided with a synchronous belt transmission assembly 422 connected to the worm 421. The specific structure of the synchronous belt transmission assembly 422 is the prior art and will not be described here; the frame 1 is provided with a mounting sleeve 423, and the mounting sleeve 423 is rotatably connected to a worm wheel 424, the worm 421 is meshed with the worm wheel 424, and the worm wheel 424 and the worm 421 can be self-locking; the worm wheel 424 is connected to the transmission mechanism 41, the worm wheel 424 can input rotational force to the transmission mechanism 41, and the transmission mechanism 41 can move relative to the worm wheel 424.

[0041] Reference Figure 3 The transmission mechanism 41 includes a connecting shaft 411, a connecting hole 4241 vertically arranged at the end of the worm wheel 424, the connecting hole 4241 penetrates the worm wheel 424, the connecting shaft 411 is slidably connected to the connecting hole 4241, and the worm wheel 424 can drive the connecting shaft 411 to rotate; specifically, combined with Figure 6 The connecting shaft 411 includes a plurality of vertically arranged ridges 4111 on the side wall, and a plurality of grooves 42411 are formed on the inner wall of the connecting hole 4241, and the ridges 4111 are slidably connected to the grooves 42411. Figure 5 The punch head 5 has a mounting cavity 51, combined with Figure 3 A gear transmission assembly 412 is disposed in the installation cavity 51 , the connecting shaft 411 is connected to the gear transmission assembly 412 , and the gear transmission assembly 412 is also connected to the two linkage columns 31 .

[0042] Reference Figure 7The gear transmission assembly 412 includes a gear 1 4121 arranged on the connecting shaft 411, and two gear 2s 4122 and two gear 3s 4123 are arranged in the mounting cavity 51. The gear 2 4122 and the gear 3 4123 are connected to the punch head 5 through shaft rotation. The gear 1 4121 is externally meshed with the two gear 2s 4122. The two gear 2s 4122 are respectively located on both sides of the gear 1 4121. Each gear 2 4122 is externally meshed with a gear 3 4123. A gear 3 4123 is correspondingly threadedly connected to a linkage column 31. The up and down movement of the gear 3 4123 will drive the punch head 5 to move up and down synchronously.

[0043] Reference Figure 7 The outer wall of the punch head 5 is provided with a receiving hole 52 penetrating into the mounting cavity 51, and the linkage column 31 is disposed in the receiving hole 52. Figure 4 A guide sleeve 12 is provided on the frame 1, and the linkage column 31 is slidably connected to the guide sleeve 12, and the guide sleeve 12 is used to guide the linkage column 31 to move up and down.

[0044] The driving synchronous belt transmission assembly 422 drives the worm 421 to rotate, thereby driving the worm wheel 424 to rotate. The rotation of the worm wheel 424 will drive the connecting shaft 411 to rotate, thereby driving the gear 1 4121 to rotate. The rotation of the gear 1 4121 will drive the two gears 3 4123 to rotate through the two gears 2 4122. At this time, the two linkage columns 31 will move relative to the punch head 5, thereby changing the punching feed amount.

[0045] Reference Figure 5 In order to guide the punch head 5, combined with Figure 2 A guide bar 13 is provided on the frame 1, and the guide bar 13 is vertically arranged. A guide groove 53 is opened on the punch head 5, and the guide bar 13 is slidably connected to the guide groove 53.

[0046] The present application can not only meet the terminal punching force requirements but also ensure the punching accuracy. The connecting rod mechanism 32 can ensure the punching accuracy and thus the precision of the punching depth, while the positioning device 4 can ensure the controllable punching depth.

[0047] The implementation principle of a punching machine in the embodiment of the present application is: First, place the terminal on the placement table 2, drive the driving mechanism 33 to drive the rotating shaft 321 to rotate, thereby driving the connecting rod 1 322 to move back and forth left and right, the connecting rod 1 322 to move back and forth left and right drives the connecting rod 2 323 and the connecting rod 3 326 to swing synchronously, and then drives the linkage column 31 and the dynamic balance block 327 to move back and forth up and down, and the linkage column 31 that moves back and forth up and down will drive the punch head 5 to move up and down through the gear 3 4123 to complete the punching; The driving synchronous belt transmission assembly 422 drives the worm 421 to rotate, thereby driving the worm wheel 424 to rotate. The rotation of the worm wheel 424 will drive the connecting shaft 411 to rotate, thereby driving the gear 1 4121 to rotate. The rotation of the gear 1 4121 will drive the two gears 3 4123 to rotate through the two gears 2 4122. At this time, the two linkage columns 31 will move relative to the punch head 5 to change the punching feed amount.

[0048] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A punching machine, characterized in that: The machine comprises a frame (1), wherein the frame (1) is provided with a placement table (2) for placing terminals, and the frame (1) is also provided with a driving device (3) and a positioning device (4), wherein the driving device (3) is connected to a punching head (5) via the positioning device (4); The positioning device (4) comprises a transmission mechanism (41) connected to the punch head (5), the transmission mechanism (41) being configured to be able to move synchronously with the punch head (5), and the transmission mechanism (41) being connected to the driving device (3); the frame (1) is also provided with a driving mechanism (42) connected to the transmission mechanism (41), and the driving mechanism (42) is configured to be able to drive the punch head (5) to approach / move away from the placement table (2) through the transmission mechanism (41).

2. A punching machine according to claim 1, characterized in that: The driving device (3) comprises a linkage column (31) connected to the positioning device (4); the linkage column (31) is connected to a connecting rod mechanism (32); the connecting rod mechanism (32) is connected to a driving mechanism (33); the driving mechanism (33) is configured to be able to drive the linkage column (31) to move through the connecting rod mechanism (32), thereby driving the punch head (5) to move.

3. A punching machine according to claim 2, characterized in that: The connecting rod mechanism (32) comprises a rotating shaft (321) rotatably connected to the frame (1), the rotating shaft (321) being connected to the driving mechanism (33); a connecting rod 1 (322) disposed laterally is eccentrically connected to the rotating shaft (321), the connecting rod 1 (322) is hingedly connected to a connecting rod 2 (323), an end of the connecting rod 2 (323) away from the connecting rod 1 (322) being hingedly connected to the linkage column (31); the connecting rod 1 (322) is away from the rotating shaft (321) and the driving mechanism (33) is connected to the driving mechanism (33) by the linkage column (31); One end of the moving shaft (321) is also connected to a slider (324); a mounting seat (325) is provided on the frame (1); a transversely arranged slide groove (3251) is provided on the mounting seat (325); the slider (324) is slidably connected to the slide groove (3251); the rotating shaft (321) is configured to be rotatable to drive the connecting rod 1 (322) to move back and forth, thereby driving the connecting rod 2 (323) to swing and then driving the linkage column (31) to move back and forth.

4. A punching machine according to claim 3, characterized in that: The connecting rod mechanism (32) also includes a connecting rod three (326), wherein the connecting rod three (326) is hinged to the connecting rod one (322), and a dynamic balancing block (327) is hinged at one end of the connecting rod three (326) away from the connecting rod one (322), and the dynamic balancing block (327) is slidably connected to the frame (1), and the dynamic balancing block (327) and the linkage column (31) are respectively located on both sides of the connecting rod one (322), and the rotating shaft (321) is configured to be able to rotate to drive the connecting rod one (322) to move back and forth, thereby driving the connecting rod three (326) to swing and then driving the dynamic balancing block (327) to move back and forth.

5. A punching machine according to claim 2, characterized in that: The driving mechanism (42) comprises a worm (421) rotatably connected to the frame (1), and the frame (1) is also provided with a synchronous belt transmission assembly (422) connected to the worm (421); a mounting sleeve (423) is provided on the frame (1), and the mounting sleeve (423) is rotatably connected to a worm wheel (424), and the worm (421) is meshed with the worm wheel (424); the worm wheel (424) is connected to the transmission mechanism (41), and the worm wheel (424) is configured to be able to input a rotational force to the transmission mechanism (41) and the transmission mechanism (41) can move relative to the worm wheel (424).

6. A punching machine according to claim 5, characterized in that: The transmission mechanism (41) comprises a connecting shaft (411), a connecting hole (4241) is provided at the end of the worm wheel (424), the connecting shaft (411) is slidably connected to the connecting hole (4241), and the worm wheel (424) can drive the connecting shaft (411) to rotate; an installation cavity (51) is provided in the punch head (5), a gear transmission assembly (412) is provided in the installation cavity (51), the connecting shaft (411) is connected to the gear transmission assembly (412), and the gear transmission assembly (412) is also connected to the linkage column (31).

7. A punching machine according to claim 6, characterized in that: The gear transmission assembly (412) comprises a gear 1 (4121) arranged on the connecting shaft (411); a gear 2 (4122) and a gear 3 (4123) are arranged in the installation cavity (51); the gear 2 (4122) and the gear 3 (4123) are both rotatably connected to the punch head (5); the gear 1 (4121) is meshed with the gear 2 (4122); the gear 2 (4122) is meshed with the gear 3 (4123); and the gear 3 (4123) is threadedly connected to the linkage column (31).

8. A punching machine according to claim 6, characterized in that: The connecting shaft (411) includes a convex ridge (4111) on the side wall, and a groove (42411) is formed on the inner wall of the connecting hole (4241), and the convex ridge (4111) is slidably connected to the groove (42411).

9. A punching machine according to claim 1, characterized in that: The frame (1) is provided with a guide bar (13), the punch head (5) is provided with a guide groove (53), and the guide bar (13) is slidably connected to the guide groove (53).

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