Die cutting jig for secondary processing of circuit board

Abstract

The utility model relates to a die cutting jig, in particular to a die cutting jig for secondary processing of a circuit board, which comprises a truss, an air cylinder is arranged below the truss, a clamping mechanism is arranged on an output shaft of the air cylinder, the clamping mechanism is matched with the air cylinder, and the air cylinder is arranged on the truss. When the output shaft of the air cylinder ascends, the clamping mechanism ascends synchronously to push the circuit board to move upwards. According to the utility model, the circuit board is clamped in the front-back dimension, the left-right dimension and the up-down dimension of the jig, so that the clamping of the circuit board by the jig can bear the stamping of secondary processing die cutting, and meanwhile, the circuit board can be synchronously clamped in the three dimensions through the elastic pushing mechanism, so that the clamping effect of the jig is improved, and the production efficiency is improved. And furthermore, small rollers are arranged on the bearing plate, so that the friction force of the circuit board is reduced, and a certain protection effect on the circuit board is achieved.

Description

Technical Field

[0001] The utility model relates to a die-cutting jig, in particular to a die-cutting jig for secondary processing of circuit boards. Background Art

[0002] Circuit board is PCB board. When the circuit board is processed and die-cut in the secondary processing, it needs to be clamped by a fixture to facilitate the die-cutting tool to stamp and die-cut it.

[0003] The jigs for circuit boards mainly include three categories: process assembly jigs, project test jigs and circuit board test jigs. In the existing die-cutting process, the circuit boards are clamped one by one through the clamping mechanism on the jig, and the clamping in different directions is performed step by step. This clamping method has low operating efficiency and no synchronous clamping in different directions, which has certain limitations. Utility Model Content

[0004] The purpose of the utility model is to provide a die-cutting jig for secondary processing of a circuit board to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A die-cutting jig for secondary processing of a circuit board comprises a truss, a cylinder is installed below the truss, and a clamping mechanism is arranged on the output shaft of the cylinder:

[0007] The clamping mechanism cooperates with the cylinder, and when the output shaft of the cylinder rises, the clamping mechanism rises synchronously, pushing the circuit board to move upward;

[0008] An elastic pushing mechanism is arranged on one side of the truss corresponding to the cylinder, and the clamping mechanism cooperates with the elastic pushing mechanism. A movable limiting plate is rotatably arranged on the side of the truss away from the cylinder. When the top of the circuit board contacts the bottom of the limiting block clamping plate, the movable limiting plate quickly rotates to one side of the circuit board to clamp the circuit board.

[0009] The die-cutting jig for secondary processing of circuit boards as described above: the clamping mechanism includes a first push plate and a rising plate, the bottom of the first push plate is connected to the output shaft of the cylinder, and the top of the first push plate is connected to the bottom of the rising plate through a group of round rods, the rising plate is below the limit block, the first push plate and the rising plate are both located on the inner side of the truss, and material plates for front and rear limiting are provided at both ends of the rising plate.

[0010] The die-cutting fixture for secondary processing of the circuit board as described above: A connecting plate is provided at the top of the first push plate, and a movable groove for the connecting plate to move is provided on the limiting block. A first pulling piece is rotatably provided at one end of the connecting plate away from the first push plate, a second pulling piece is rotatably provided at one end of the first pulling piece away from the connecting plate, and the second pulling piece cooperates with the elastic pushing mechanism.

[0011] The die-cutting fixture for secondary processing of the circuit board as described above: An external cover is provided on one side of the truss close to the cylinder, the elastic pushing mechanism is arranged inside the external cover, the elastic pushing mechanism includes a pulling rod and an eccentric mechanism, and one end of the pulling rod is rotatably connected to the second pulling piece;

[0012] The eccentric mechanism includes an eccentric disk, a fixed rod, a first movable rod and a tension spring. The fixed rod is arranged on the inner wall of the external cover, the eccentric disk is rotatably connected to the inner wall of the external cover through a rotating shaft, the first movable rod is connected to one end of the eccentric disk away from the rotating shaft, the fixed rod and the first movable rod are connected by the tension spring, a circular through groove is provided on the eccentric disk and is rotatably connected to the pulling rod.

[0013] The die-cutting fixture for secondary processing of the circuit board as described above: The elastic pushing mechanism further includes a push rod, a second movable rod and a rotating shaft. One end of the push rod close to the cylinder is rotatably connected to the first movable rod, the bottom end of the second movable rod is rotatably connected to one end of the push rod away from the cylinder, one end of the rotating shaft close to the push rod is connected to the top end of the second movable rod, and the rotating shaft is connected to the movable limiting plate to drive the movable limiting plate to rotate.

[0014] The die-cutting fixture for secondary processing of the circuit board as described above: A fixed block is provided on one side of the top of the truss away from the cylinder, and a longitudinal circular through groove is provided on the fixed block for the rotating shaft to rotate.

[0015] The die-cutting fixture for secondary processing of the circuit board as described above: A second push plate is further provided on the output shaft of the cylinder, a bearing plate is provided at the bottom of the second push plate through a round rod, a transverse groove is provided in the bearing plate, and a roller is rotatably provided inside the groove.

[0016] The die-cutting fixture for secondary processing of the circuit board as described above: A slider is provided on one side surface of one end of the bearing plate, a slide rail is provided inside the truss, and the slider is slidably matched with the slide rail.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model clamps the circuit board in three dimensions, namely front and back, left and right, and up and down of the jig, so that the clamping of the circuit board by the jig can bear the stamping of secondary processing die cutting. At the same time, through the elastic pushing mechanism, the circuit board can be clamped synchronously in three dimensions, improving the clamping effect of the jig, reducing time, and improving work efficiency. Further, small rollers are provided on the bearing plate, reducing the friction force of the circuit board and playing a certain protective role for the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic structural diagram of a die cutting jig for secondary processing of a circuit board.

[0019] Figure 2 FIG. is a schematic structural diagram of another orientation of the die cutting jig for secondary processing of a circuit board.

[0020] Figure 3 FIG. is a schematic structural diagram of yet another orientation of the die cutting jig for secondary processing of a circuit board.

[0021] Figure 4 FIG. is a schematic structural diagram of the die cutting jig for secondary processing of a circuit board with the peripheral housing removed and separated from the elastic pushing mechanism.

[0022] Figure 5 FIG. is an enlarged schematic structural diagram of the elastic pushing mechanism of the die cutting jig for secondary processing of a circuit board.

[0023] Figure 6 FIG. is an enlarged schematic structural diagram of the connection between the push rod and the second movable rod of the die cutting jig for secondary processing of a circuit board.

[0024] In the figure: 1, truss; 2, cylinder; 3, first push plate; 4, rising plate; 5, connecting plate; 6, limit block; 601, movable groove; 7, peripheral housing; 8, eccentric disc; 9, fixed rod; 10, first movable rod; 11, tension spring; 12, push rod; 13, second movable rod; 14, rotating shaft; 15, fixed block; 16, movable limit plate; 17, second push plate; 18, bearing plate; 19, slide rail; 20, slider; 21, pulling rod; 22, second pull tab; 23, first pull tab. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] Please refer to Figures 1 - 6As an embodiment of the utility model, the die-cutting jig for secondary processing of the circuit board includes a truss 1, a cylinder 2 is installed below the truss 1, and a clamping mechanism is provided on the output shaft of the cylinder 2:

[0027] The clamping mechanism cooperates with the cylinder 2, and when the output shaft of the cylinder 2 rises, the clamping mechanism rises synchronously, pushing the circuit board to move upward;

[0028] An elastic pushing mechanism is provided on one side of the truss 1 corresponding to the cylinder 2, and the clamping mechanism cooperates with the elastic pushing mechanism. A movable limit plate 16 is rotatably provided on the side of the truss 1 away from the cylinder 2. When the top of the circuit board contacts the bottom of the limit block 6 clamping plate, the movable limit plate 16 quickly rotates to one side of the circuit board to clamp the circuit board.

[0029] In this embodiment, when the circuit board needs to be clamped and then die-cut, the cylinder 2 is started, and the output shaft of the cylinder 2 begins to drive the clamping mechanism to rise. The clamping mechanism drives the circuit board upward and slowly approaches the limit block 6. When the clamping mechanism rises, the elastic potential energy inside the elastic pushing mechanism is triggered. When the circuit board approaches the bottom of the clamping plate of the limit block 6, the corresponding elastic potential energy inside the elastic pushing mechanism will also slowly approach the maximum. When the top of the circuit board contacts the bottom of the clamping joint of the limit plate, the elastic potential energy stored in the elastic pushing mechanism is released, thereby quickly pushing the movable limit plate 16 to rotate, and clamping the other side of the circuit board.

[0030] As a further solution of the utility model, the clamping mechanism includes a first push plate 3 and a rising plate 4, the bottom of the first push plate 3 is connected to the output shaft of the cylinder 2, and the top of the first push plate 3 is connected to the bottom of the rising plate 4 through a group of round rods, the rising plate 4 is below the limit block 6, the first push plate 3 and the rising plate 4 are both located on the inner side of the truss 1, and the two ends of the rising plate 4 are provided with material plates for front and rear limiting.

[0031] In this embodiment, the rise of the output shaft of the cylinder 2 will drive the first push plate 3 to rise. Similarly, the rise of the first push plate 3 will also push the riser plate 4 to rise, thereby pushing the circuit board slowly close to the clamping plate of the limit block 6. Material plates are provided at both ends of the riser plate 4 to clamp one end of the circuit board into the riser plate 4 to adjust the circuit board in the front and rear directions ( Figure 1 tighten in the front-to-back direction as shown in the figure.

[0032] As a further solution of the present utility model, a connecting plate 5 is provided at the top of the first push plate 3, and an activity groove 601 for the connecting plate 5 to move is provided on the limiting block 6. One end of the connecting plate 5 away from the first push plate 3 is rotatably provided with a first pulling piece 23. One end of the first pulling piece 23 away from the connecting plate 5 is rotatably provided with a second pulling piece 22, and the second pulling piece 22 is matched with an elastic pushing mechanism.

[0033] In this embodiment, when the first push plate 3 moves upward, it will push the connecting plate 5 upward. When the connecting plate 5 moves upward, it will pull the first pulling piece 23 upward. Similarly, the first pulling piece 23 will continue to pull the second pulling piece 22.

[0034] As a further solution of the present utility model, a peripheral cover 7 is provided on one side of the truss 1 close to the air cylinder 2. The elastic pushing mechanism is arranged inside the peripheral cover 7. The elastic pushing mechanism includes a pulling rod 21 and an eccentric mechanism. One end of the pulling rod 21 is rotatably connected to the second pulling piece 22;

[0035] The eccentric mechanism includes an eccentric disc 8, a fixed rod 9, a first movable rod 10 and a tension spring 11. The fixed rod 9 is arranged on the inner wall of the peripheral cover 7. The eccentric disc 8 is rotatably connected to the inner wall of the peripheral cover 7 through a rotating shaft. The first movable rod 10 is connected to one end of the eccentric disc 8 away from the rotating shaft. The fixed rod 9 and the first movable rod 10 are connected by the tension spring 11. A circular through groove is provided on the eccentric disc 8 and is rotatably connected to the pulling rod 21.

[0036] In this embodiment, when the second pulling piece 22 moves upward, it will also drive the pulling rod 21 upward. Similarly, since the pulling rod 21 is rotatably connected to the eccentric disc 8, when the pulling rod 21 moves upward, it will pull the eccentric disc 8 to rotate counterclockwise in the direction shown in the figure around the rotating shaft. When the eccentric disc 8 rotates counterclockwise, the tension spring 11 will pull the first movable rod 10 to also rotate counterclockwise in the direction shown in the figure. When the axes of the fixed rod 9, the rotating shaft and the first movable rod 10 are on the same vertical line, the elastic potential energy of the tension spring 11 is pulled to the maximum, and the stored elastic potential energy also reaches the maximum.

[0037] As a further solution of the present utility model, the elastic pushing mechanism further includes a push rod 12, a second movable rod 13 and a rotating shaft 14. One end of the push rod 12 close to the air cylinder 2 is rotatably connected to the first movable rod 10. The bottom end of the second movable rod 13 is rotatably connected to the end of the push rod 12 away from the air cylinder 2. One end of the rotating shaft 14 close to the push rod 12 is connected to the top end of the second movable rod 13. The rotating shaft 14 is connected to the movable limiting plate 16 to drive the movable limiting plate 16 to rotate.

[0038] In this embodiment, when the elastic potential energy of the tension spring 11 is stored to the maximum, the corresponding push rod 12 will also be pushed a distance in the direction of the second movable rod 13. When the second pull tab 22 continues to drive the pull rod 21 upward, the pull rod 21 continues to pull the eccentric disk 8 to rotate. At this time, the axis of the second movable rod 13 will cross the axis of the three in the same vertical direction, and the elastic potential energy stored in the tension spring 11 will be quickly released, so that the first movable rod 10 will quickly push the push rod 12, and the push rod 12 will also quickly push the second movable rod 13. The second movable rod 13 moves upward, and the second movable rod 13 drives the rotating shaft 14 to rotate upward. The rotation of the rotating shaft 14 drives the movable limit plate 16 to quickly clamp on the top of the circuit board, thereby limiting and clamping the circuit board in the up and down directions. At this time, one end of the bottom of the eccentric disk 8 is tightly against one side of the truss 1 under the resetting action of the tension spring 11. At this time, the tension spring 11 is still in a stretched state and has a certain elastic potential energy. Therefore, the movable limit plate 16 uses this elastic potential energy to firmly clamp it on the top of the circuit board.

[0039] As a further solution of the utility model, a fixing block 15 is provided on the top of the truss 1 on the side away from the cylinder 2 , and a longitudinal circular through groove is provided on the fixing block 15 for the rotation of the rotating shaft 14 .

[0040] In this embodiment, a fixed block 15 is installed on the truss 1, and a through groove is opened inside the fixed block 15 for the rotation of the rotating shaft 14, so as to support the rotating shaft 14, so that the second movable rod 13 can drive the rotating shaft 14 to rotate, and the rotating shaft 14 can drive the movable limiting plate 16 to rotate.

[0041] As a further solution of the utility model, a second push plate 17 is further provided on the output shaft of the cylinder 2, and a bearing plate 18 is provided at the bottom of the second push plate 17 through a round rod. A transverse groove is opened on the bearing plate 18, and a roller is rotatably provided inside the groove.

[0042] In this embodiment, when the circuit board needs to be transported, it is transported through a transport mechanism (not shown in the figure) from the bottom of the right truss 1 in the illustrated direction. There is a certain distance for the circuit board to be conveyed between the bearing plate 18 and the bottom of the truss 1. When the transport mechanism pushes the circuit board onto the surface of the bearing plate 18, the circuit board converts the original sliding friction into rolling friction through the rollers of the bearing plate 18, thereby reducing the frictional force and also protecting the bottom surface of the circuit board. When the transport mechanism pushes the end of the circuit board close to the limit block 6 onto the lifting plate 4, the cylinder 2 is correspondingly started. The cylinder 2 drives the first push plate 3 and the second push plate 17 synchronously. The first push plate 3 will push the lifting plate 4, and the second push plate 17 will push the bearing plate 18, making the circuit board slowly move upward close to the bottom of the clamping plate of the limit block 6. Correspondingly, the connecting plate 5 starts to trigger the elastic pushing mechanism. When the top of the circuit board touches the bottom of the clamping plate of the limit block 6, the elastic pushing mechanism will drive the movable limit plate 16 to clamp it at the other end of the circuit board, thus completing the clamping in the up and down directions.

[0043] As a further solution of the present utility model, a slider 20 is provided on one side surface of the bearing plate 18, a slide rail 19 is provided inside the truss 1, and the slider 20 is slidably engaged with the slide rail 19.

[0044] In this embodiment, when the bearing plate 18 pushes the circuit board upward, by providing a slider 20 on one side thereof, during the upward movement, the slider 20 slides inside the slide rail 19, thereby making the operation of the bearing plate 18 more stable and pushing the circuit board upward more steadily close to the limit block 6.

[0045] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of the present utility model, all technical solutions that can implement the present utility model in other specific forms are included in the present utility model.

Claims

1. A die-cutting fixture for secondary processing of a circuit board, characterized in that, The die-cutting fixture for secondary processing of the circuit board includes a truss (1). A cylinder (2) is installed below the truss (1). A clamping mechanism is arranged on the output shaft of the cylinder (2): The clamping mechanism cooperates with the cylinder (2). When the output shaft of the cylinder (2) rises, the clamping mechanism rises synchronously, pushing the circuit board upward; On one side of the truss (1) corresponding to the cylinder (2), an elastic pushing mechanism is arranged. The clamping mechanism cooperates with the elastic pushing mechanism. An active limiting plate (16) is rotatably arranged on the side of the truss (1) away from the cylinder (2). When the top of the circuit board contacts the bottom of the clamping plate of the limiting block (6), the active limiting plate (16) quickly rotates to one side of the circuit board to clamp the circuit board.

2. The die-cutting fixture for secondary processing of a circuit board according to claim 1, wherein The clamping mechanism includes a first push plate (3) and a rising plate (4). The bottom of the first push plate (3) is connected to the output shaft of the cylinder (2), and the top of the first push plate (3) is connected to the bottom of the rising plate (4) through a group of round rods. The rising plate (4) is below the limiting block (6). Both the first push plate (3) and the rising plate (4) are located inside the truss (1). Material plates for front and rear limiting are arranged at both ends of the rising plate (4).

3. The die-cutting fixture for secondary processing of a circuit board according to claim 2, characterized in that, A connecting plate (5) is arranged on the top of the first push plate (3). An activity groove (601) for the connecting plate (5) to move is opened on the limiting block (6). A first pulling piece (23) is rotatably arranged at one end of the connecting plate (5) away from the first push plate (3). A second pulling piece (22) is rotatably arranged at one end of the first pulling piece (23) away from the connecting plate (5). The second pulling piece (22) cooperates with the elastic pushing mechanism.

4. The die-cutting fixture for secondary processing of a circuit board according to claim 3, characterized in that, An external cover (7) is arranged on one side of the truss (1) close to the cylinder (2). The elastic pushing mechanism is arranged inside the external cover (7). The elastic pushing mechanism includes a pulling rod (21) and an eccentric mechanism. One end of the pulling rod (21) is rotatably connected to the second pulling piece (22); The eccentric mechanism includes an eccentric disk (8), a fixed rod (9), a first movable rod (10), and a tension spring (11). The fixed rod (9) is arranged on the inner wall of the external cover (7). The eccentric disk (8) is rotatably connected to the inner wall of the external cover (7) through a rotating shaft. The first movable rod (10) is connected to the end of the eccentric disk (8) away from the rotating shaft. The fixed rod (9) and the first movable rod (10) are connected through the tension spring (11). A circular through groove is opened on the eccentric disk (8) and is rotatably connected to the pulling rod (21).

5. The die-cutting fixture for secondary processing of a circuit board according to claim 4, wherein The elastic pushing mechanism further includes a push rod (12), a second movable rod (13), and a rotating shaft (14). One end of the push rod (12) close to the cylinder (2) is rotatably connected to the first movable rod (10). The bottom end of the second movable rod (13) is rotatably connected to the end of the push rod (12) away from the cylinder (2). One end of the rotating shaft (14) close to the push rod (12) is connected to the top end of the second movable rod (13). The rotating shaft (14) is connected to the active limiting plate (16) to drive the active limiting plate (16) to rotate.

6. The die-cutting fixture for secondary processing of a circuit board according to claim 5, wherein, A fixing block (15) is arranged on the top of the truss (1) on the side away from the cylinder (2), and a longitudinal circular through groove is provided on the fixing block (15) for the rotation of the rotating shaft (14).

7. The die-cutting fixture for secondary processing of a circuit board according to claim 1, characterized in that, A second push plate (17) is also arranged on the output shaft of the cylinder (2), and a bearing plate (18) is arranged at the bottom of the second push plate (17) through a round rod. A transverse groove is opened on the bearing plate (18), and a roller is rotatably arranged inside the groove.

8. The die-cutting fixture for secondary processing of a circuit board according to claim 7, characterized in that, A sliding block (20) is arranged on the side surface of one end of the bearing plate (18), a sliding rail (19) is arranged on the inner side of the truss (1), and the sliding block (20) is slidably matched with the sliding rail (19).

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