A manual pin ejector for oversize panels

Abstract

The utility model relates to the field of PCB board production discloses a kind of super large plate manual Pin withdrawal device, including processing table, the surface of the front end of processing table is provided with multidirectional pressing mechanism, the rear end of processing table is provided with pin withdrawal mechanism, the multidirectional pressing mechanism includes motor, the output shaft of motor is fixedly connected with threaded rod.The utility model in, motor drives threaded rod to drive sliding plate to move, by hinged lever to drive lateral clamping plate to close along processing table guide groove, the lateral clamping of both sides of PCB board is clamped;Meanwhile, the two groups of sliding blocks of vertical pressing plate respectively along lateral clamping plate sliding groove and guide plate inclined groove slide, under the inclined groove guide effect with lateral clamping synchronous drop, the upper surface of PCB board is vertically pressed, horizontal and vertical cooperative pressing design, without manual adjustment one by one, it can realize the all-round fixation of super large PCB board, effectively avoid Pin withdrawal when plate body deviation or local warping, reduce plate body fracture.

Description

Technical Field

[0001] This utility model relates to the field of PCB board manufacturing, and in particular to a manual pin removal device for extra-large boards. Background Technology

[0002] PCB, short for Printed Circuit Board, is a provider and support for the electrical connections of electronic components and an important part of electronic products.

[0003] In the production and maintenance of ultra-large PCBs (such as large circuit boards in communication equipment and industrial control), pin removal (i.e., removing the connecting pins from the surface of the board) is one of the key processes. It is necessary to achieve efficient and non-destructive removal of the pins while ensuring the integrity of the PCB structure.

[0004] However, large PCBs have a large area and heavy weight, and require local pushing force during pin removal. Traditional fixing methods often use lateral clamping or vertical pressing in one direction, which makes it difficult to achieve all-round fixing. Uneven lateral clamping force can easily cause the board to shift, while the lack of vertical pressing can cause local warping in the pin removal area due to force. Especially for brittle PCBs, this can easily lead to board breakage or circuit damage. Therefore, a manual pin removal device for large boards is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a manual pin removal device for extra-large plates, which aims to improve the problem that traditional fixing methods in the prior art mostly use lateral clamping or vertical pressing in one direction, making it difficult to achieve all-round fixing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a manual pin removal device for extra-large boards, including a processing table, wherein a multi-directional pressing mechanism is provided on the front surface of the processing table, and a pin removal mechanism is provided at the rear end of the processing table;

[0007] The multi-directional clamping mechanism includes a motor, the output shaft of which is fixedly connected to a threaded rod, and a sliding plate is threadedly connected to the surface of the threaded rod. A fixed column is fixedly connected to the center of the processing table, and a collecting tray is fixedly connected to the top of the outer wall of the fixed column. A hinge rod is hinged to the end of the sliding plate away from the threaded rod, and a lateral clamping plate is hinged to the end of the hinge rod away from the sliding plate. A vertical clamping plate is in contact with the surface of the lateral clamping plate, and two sets of sliders are fixedly connected to the side wall of the vertical clamping plate. A guide plate is fixedly connected to the surface of the rear end of the processing table.

[0008] As a further description of the above technical solution:

[0009] The pin ejection mechanism includes a connecting frame, a connecting seat fixedly connected to the top of the connecting frame, a sliding handle slidably connected to the inner side wall of the connecting seat, a connecting rod hinged to the bottom end of the outer wall of the sliding handle, a pin ejection seat hinged to the end of the connecting rod away from the sliding handle, the pin ejection seat being elastically connected to the inner side wall of the connecting seat by a return spring, and a guide rod fixedly connected to the top end of the outer wall of the pin ejection seat.

[0010] As a further description of the above technical solution:

[0011] The motor is fixedly connected to the inner wall at the bottom of the processing table, and the threaded rod is rotatably connected to the inner side wall of the fixed column.

[0012] As a further description of the above technical solution:

[0013] The sliding plate is slidably connected to the inner side wall of the fixed column, and a guide groove is provided on the surface of the processing table. The bottom end of the lateral clamping plate is slidably connected to the inner wall of the guide groove of the processing table.

[0014] As a further description of the above technical solution:

[0015] The side wall of the lateral clamping plate is provided with a sliding groove, and a set of sliders is slidably connected to the inner wall of the sliding groove of the lateral clamping plate. The surface of the guide plate is provided with an inclined groove, and another set of sliders passes through and is slidably connected to the inner wall of the inclined groove of the guide plate.

[0016] As a further description of the above technical solution:

[0017] The connecting frame is fixedly connected to the surface of the rear end of the processing table, and the pin ejector is slidably connected to the inner side wall of the connecting frame.

[0018] As a further description of the above technical solution:

[0019] One end of the reset spring is fixedly connected to the surface of the pin ejector seat, and the other end of the reset spring is fixedly connected to the top of the inner side wall of the connector seat.

[0020] As a further description of the above technical solution:

[0021] The guide rod passes through and is slidably connected to the inner wall at the top of the connector.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the motor drives the threaded rod to move the sliding plate, and the hinge rod pulls the lateral clamping plate to move along the guide groove of the processing table to clamp the two sides of the PCB board laterally. At the same time, the two sets of sliders of the vertical pressing plate slide along the sliding groove of the lateral clamping plate and the inclined groove of the guide plate respectively. Under the guidance of the inclined groove, they descend synchronously with the lateral clamping to press the upper surface of the PCB board vertically. The lateral and vertical coordinating pressing design can achieve all-round fixation of the ultra-large PCB board without manual adjustment, effectively avoiding board body displacement or local warping when removing pins and reducing board body breakage.

[0024] 2. In this utility model, the operator only needs to pull the handle to drive the pin ejector seat to move down, and use the pin ejector pin to quickly remove the pin. The reset spring can realize the automatic reset of the pin ejector seat without manual lifting, which simplifies the operation process. At the same time, the collection plate at the top of the fixed column can directly receive the removed pin, preventing the pin from falling and reducing the subsequent cleaning workload and safety hazards. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of a manual pin ejection device for an extra-large plate proposed in this utility model.

[0026] Figure 2 This is a partial cross-sectional view of the processing table of a manual pin ejection device for ultra-large plates proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the lateral clamping plate, guide plate, and vertical pressing plate of a manual pin ejection device for extra-large plates proposed in this utility model, in their separated state.

[0028] Figure 4 This is a partial cross-sectional view of the connector of a manual pin ejection device for an extra-large plate proposed in this utility model.

[0029] Legend:

[0030] 1. Processing table; 2. Multi-directional clamping mechanism; 21. Motor; 22. Threaded rod; 23. Fixed column; 24. Collection tray; 25. Sliding plate; 26. Hinge rod; 27. Lateral clamping plate; 28. Guide plate; 29. ​​Vertical clamping plate; 210. Slider; 3. Pin ejection mechanism; 31. Connecting frame; 32. Connecting seat; 33. Sliding handle; 34. Connecting rod; 35. Pin ejection seat; 36. Return spring; 37. Guide rod. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 - Figure 3 The present invention provides an embodiment of a manual pin removal device for an extra-large PCB board, comprising a processing table 1. The processing table 1 is in the prior art and can support the extra-large PCB board, as well as the multi-directional pressing mechanism 2 and the pin removal mechanism 3. The multi-directional pressing mechanism 2 is provided on the front surface of the processing table 1, and the pin removal mechanism 3 is provided on the rear end of the processing table 1.

[0033] Reference Figure 2 - Figure 3The multi-directional clamping mechanism 2 includes a motor 21, which is fixedly connected to the inner wall of the bottom end of the processing table 1. A threaded rod 22 is rotatably connected to the inner side wall of the fixed column 23. The output shaft of the motor 21 is fixedly connected to the threaded rod 22. When the motor 21 is driven, it causes the threaded rod 22 to rotate. A sliding plate 25 is threadedly connected to the surface of the threaded rod 22. The sliding plate 25 can only slide up and down on the inner side of the fixed column 23, and its inner side is provided with an internal thread groove that fits the threaded rod 22. A fixed clamping mechanism is fixedly connected to the center of the processing table 1. A collection tray 24 is fixedly connected to the top of the outer wall of column 23. The surface of the collection tray 24 has a cavity, allowing pins ejected from the oversized PCB board to fall onto its surface. A hinge rod 26 is hinged to the end of the sliding plate 25 away from the threaded rod 22. A lateral clamping plate 27 is hinged to the end of the hinge rod 26 away from the sliding plate 25. The sliding plate 25 is slidably connected to the inner side wall of the fixed column 23. A guide groove is formed on the surface of the processing table 1. The bottom end of the lateral clamping plate 27 is slidably connected to the inner wall of the guide groove of the processing table 1. During the up-and-down movement of plate 25, the hinge rod 26 pulls the corresponding lateral clamping plates 27 together against the inner wall of the guide groove of the processing table 1, thereby pressing the two sides of the oversized PCB board. The surface of the lateral clamping plate 27 contacts the vertical clamping plate 29, and two sets of sliders 210 are fixedly connected to the side wall of the vertical clamping plate 29. The rear surface of the processing table 1 is fixedly connected to the guide plate 28, and the side wall of the lateral clamping plate 27 has a sliding groove. A set of sliders 210 are slidably connected to the inner wall of the sliding groove of the lateral clamping plate 27. The guide plate 28 has a sloping groove on its surface. Another set of sliders 210 passes through and is slidably connected to the inner wall of the sloping groove of the guide plate 28. By setting sliders 210 on both sides of the vertical clamping plate 29, when the side clamping plate 27 moves synchronously with the vertical clamping plate 29, a set of sliders 210 will move on the inner wall of the sloping groove of the guide plate 28 and descend with the movement, thereby pressing the upper surface of the oversized PCB board, thus preventing the PCB board from locally lifting when pushing the pins, which could lead to breakage.

[0034] Reference Figure 1 and Figure 4The pin ejection mechanism 3 includes a connecting frame 31, with a connecting seat 32 fixedly connected to the top of the connecting frame 31. A sliding handle 33 is slidably connected to the inner side wall of the connecting seat 32. A connecting rod 34 is hinged to the bottom end of the outer wall of the sliding handle 33. A pin ejection seat 35 is hinged to the end of the connecting rod 34 away from the sliding handle 33. When the sliding handle 33 is pulled, it pushes the pin ejection seat 35 downward on the inner side wall of the connecting seat 32 through the connecting rod 34, thereby ejecting the pin from the surface of the PCB board outward through the pin ejection pin on the lower surface of the pin ejection seat 35. The connecting frame 31 is fixedly connected to the connecting frame 32. On the rear surface of the workbench 1, the pin ejector 35 is slidably connected to the inner sidewall of the connecting seat 32. The pin ejector 35 is elastically connected to the inner sidewall of the connecting seat 32 via a return spring 36. One end of the return spring 36 is fixedly connected to the surface of the pin ejector 35, and the other end is fixedly connected to the top of the inner sidewall of the connecting seat 32. The function of the return spring 36 is to automatically reset the pin ejector 35 after it has moved downward. A guide rod 37 is fixedly connected to the top of the outer wall of the pin ejector 35. The guide rod 37 passes through and is slidably connected to the inner wall of the top of the connecting seat 32. By providing the guide rod 37, the up and down movement of the pin ejector 35 can be guided, and the elastic tension and compression of the return spring 36 can also be guided and supported.

[0035] Working principle: The motor 21, fixed to the inner wall of the bottom of the processing table 1, is started. The output shaft of the motor 21 drives the threaded rod 22, which is fixedly connected to it, to rotate. The sliding plate 25, threadedly connected to the surface of the threaded rod 22, moves upward or downward along the inner side of the fixed column 23. When the sliding plate 25 moves, the hinge rod 26, hinged at the end away from the threaded rod 22, simultaneously pulls the lateral clamping plate 27, which is hinged at the other end. This causes the bottom ends of the lateral clamping plates 27 to move closer together along the guide grooves on the surface of the processing table 1, thus laterally clamping the two sides of the large PCB board. Simultaneously, the vertical pressure plate 29, which is in contact with the surface of the lateral clamping plate 27, moves along with the lateral clamping plate. The clamping plate 27 moves synchronously. Of the two sets of sliders 210 fixed to the side wall of the vertical clamping plate 29, one set slides along the groove on the side wall of the lateral clamping plate 27, and the other set slides along the inclined groove on the surface of the guide plate 28 fixed to the rear end surface of the processing table 1. Under the guidance of the inclined groove, the vertical clamping plate 29 gradually descends with the movement of the lateral clamping plate 27, and vertically clamps the upper surface of the oversized PCB board placed on the surface of the collection tray 24 to prevent the PCB board from partially lifting and breaking during the subsequent pin removal process. The collection tray 24 fixed to the top of the outer wall of the fixing column 23 is used to receive the subsequently removed pins.

[0036] After the PCB board is fixed, a manual pin removal operation is performed using the pin removal mechanism 3: The operator pulls the sliding handle 33, which is slidably connected to the inner side of the connecting seat 32 fixed at the top of the connecting bracket 31. The connecting rod 34, which is hinged to the bottom of the outer wall of the sliding handle 33, simultaneously pushes the pin removal seat 35 (slidably connected to the inner side wall of the connecting seat 32) to move downward along the inner side of the connecting seat 32. The pin removal pin on the lower surface of the pin removal seat 35 contacts the pin on the surface of the PCB board and removes it outward. The removed pin falls into the collection tray 24. When the pin removal seat 35 moves downward, it is stretched and stored by the return spring 36. At the same time, the guide rod 37, which is fixed at the top of the outer wall of the pin removal seat 35, slides along the inner wall of the top of the connecting seat 32, providing guidance for the up and down movement of the pin removal seat 35 and supporting the stretching and compression of the return spring 36. After the pin removal is completed, the sliding handle 33 is released, and the return spring 36 releases its elasticity, causing the pin removal seat 35 to return upward, waiting for the next pin removal operation.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A manual pin removal device for extra-large boards, comprising a processing table (1), characterized in that: The front surface of the processing table (1) is provided with a multi-directional pressing mechanism (2), and the rear end of the processing table (1) is provided with a pin removal mechanism (3); The multi-directional clamping mechanism (2) includes a motor (21), the output shaft of the motor (21) is fixedly connected to a threaded rod (22), the surface of the threaded rod (22) is threadedly connected to a sliding plate (25), a fixed column (23) is fixedly connected to the center of the processing table (1), a collection tray (24) is fixedly connected to the top of the outer wall of the fixed column (23), a hinge rod (26) is hinged to the end of the sliding plate (25) away from the threaded rod (22), a lateral clamping plate (27) is hinged to the end of the hinge rod (26) away from the sliding plate (25), a vertical clamping plate (29) is in contact with the surface of the lateral clamping plate (27), two sets of sliders (210) are fixedly connected to the side wall of the vertical clamping plate (29), and a guide plate (28) is fixedly connected to the surface of the rear end of the processing table (1).

2. The manual pin ejection device for extra-large boards according to claim 1, characterized in that: The pin ejection mechanism (3) includes a connecting frame (31), a connecting seat (32) is fixedly connected to the top of the connecting frame (31), a sliding handle (33) is slidably connected to the inner side wall of the connecting seat (32), a connecting rod (34) is hinged to the bottom of the outer wall of the sliding handle (33), a pin ejection seat (35) is hinged to the end of the connecting rod (34) away from the sliding handle (33), the pin ejection seat (35) is elastically connected to the inner side wall of the connecting seat (32) by a return spring (36), and a guide rod (37) is fixedly connected to the top of the outer wall of the pin ejection seat (35).

3. The manual pin ejection device for extra-large boards according to claim 1, characterized in that: The motor (21) is fixedly connected to the inner wall of the bottom end of the processing table (1), and the threaded rod (22) is rotatably connected to the inner side wall of the fixed column (23).

4. The manual pin ejection device for extra-large boards according to claim 1, characterized in that: The sliding plate (25) is slidably connected to the inner side wall of the fixed column (23), and the surface of the processing table (1) is provided with a guide groove. The bottom end of the lateral clamping plate (27) is slidably connected to the inner wall of the guide groove of the processing table (1).

5. The manual pin ejection device for extra-large boards according to claim 1, characterized in that: The side wall of the lateral clamping plate (27) is provided with a sliding groove, and a set of sliders (210) are slidably connected to the inner wall of the sliding groove of the lateral clamping plate (27). The surface of the guide plate (28) is provided with an inclined groove, and another set of sliders (210) are slidably connected to the inner wall of the inclined groove of the guide plate (28).

6. The manual pin ejection device for extra-large boards according to claim 2, characterized in that: The connecting frame (31) is fixedly connected to the surface of the rear end of the processing table (1), and the pin ejector seat (35) is slidably connected to the inner side wall of the connecting seat (32).

7. The manual pin ejection device for extra-large boards according to claim 2, characterized in that: One end of the return spring (36) is fixedly connected to the surface of the pin ejector seat (35), and the other end of the return spring (36) is fixedly connected to the top of the inner sidewall of the connector seat (32).

8. A manual pin ejection device for extra-large boards according to claim 2, characterized in that: The guide rod (37) passes through and is slidably connected to the inner wall at the top of the connecting seat (32).

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