PCB welding positioning and pressing mechanism

Abstract

This utility model discloses a PCB board welding positioning and clamping mechanism, relating to the field of PCB board welding technology. It includes a base plate, an electric push rod fixedly connected to the surface of the base plate, and a support plate fixedly connected to the output end of the electric push rod. The support plate is parallel to the base plate and positioned above it. Gear columns are rotatably connected to both ends of the support plate. In this utility model, by fixing a rack to the outer wall of the support plate, and with the rack symmetrically positioned on the outer wall of the gear disk, the support plate moves upward via the electric push rod, simultaneously driving the rack to move. This causes the rack to rotate the gear disk downward. A rack meshes with the outer wall of the gear disk, causing the rack to drive a top plate downward to press the PCB board on the support plate surface. This arrangement allows for bidirectional pressing of the PCB board surface by the support plate and top plate through the synchronous movement of the support plate after the PCB board is placed on its surface, avoiding the problem of uneven force on the PCB board caused by current unidirectional pressing.

Description

Technical Field

[0001] This utility model relates to the field of PCB board welding technology, and in particular to a PCB board welding positioning and clamping mechanism. Background Technology

[0002] PCB board generally refers to printed circuit board. Printed circuit board is the provider of electrical connection for electronic components. With the development of the times, various high-tech products are constantly being updated and replaced. In order to obtain higher quality PCB boards, it is necessary to position and press the soldered PCB boards. In order to better press the PCB boards on the production line, a PCB board soldering positioning and pressing mechanism is needed.

[0003] Currently, PCB board welding positioning and clamping mechanisms typically involve placing the PCB board and then pressing it onto the upper surface using a cylinder. This results in poor positioning and, because it is a unidirectional pressing process, it can easily affect the uniformity of the pressure on the PCB board, leading to problems such as pressure misalignment and instability, which increases the defect rate of PCB board processing. Utility Model Content

[0004] This invention provides a PCB board welding positioning and clamping mechanism, which solves the problems in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A PCB board welding positioning and clamping mechanism includes a base plate, an electric push rod fixedly connected to the surface of the base plate, a support plate fixedly connected to the output end of the electric push rod, and the support plate being arranged parallel above the base plate. Both ends of the support plate are rotatably connected to gear columns, and gear grooves are meshed on the outer walls of the gear columns. A vertical plate is fixedly connected to the outer wall of the gear groove, and the vertical plate is fixedly connected to the surface of the base plate.

[0007] The outer wall of the support plate is fixedly connected to a rack, and the upper outer wall of the rack is movably meshed with a gear disk. The gear disk is rotatably connected to the outer wall of the upright plate, and the outer wall of the gear disk is meshed with a rack. The rack and the rack are symmetrically arranged about the central axis of the gear disk.

[0008] Using the above structure, the welded PCB board to be pressed is precisely placed on the surface of the tray after being positioned through the positioning holes. An electric push rod drives the tray upwards. With the action of rotating gears at both ends of the tray, the tray synchronously drives the gears to mesh on the outer wall of the gear groove, ensuring the accuracy of the tray's upward path. Simultaneously, a rack is fixedly connected to the outer wall of the tray, meshing with the gear disk when moving upwards. With the rack symmetrically meshing with the outer wall of the gear disk, the rack moves downwards synchronously. Furthermore, a top plate is fixedly connected to the top of the rack, causing the top plate to move downwards synchronously. This configuration ensures that when the tray moves the PCB board upwards, the top plate simultaneously presses the PCB board downwards, guaranteeing bidirectional pressing stability. Moreover, a return spring at the bottom of the top plate allows the rack to return upwards under the elastic action of the return spring when not driven by the gear disk, facilitating the user's placement of the PCB board on the tray surface.

[0009] The rack is slidably connected to the outer wall of the vertical plate, and a top plate is fixedly connected to the top of the rack. Return springs are fixedly connected to the bottom ends of both sides of the top plate, and the bottom ends of the return springs are fixedly connected to the top of the vertical plate.

[0010] With the above structure, by fixing the top plate to the top of the rack, the top plate moves synchronously above the support plate when the gear disk drives the rack to move up and down. Moreover, by setting reset springs at the bottom of both sides of the top plate, the top plate can be reset upward by the elasticity of the reset springs when the gear disk is not rotating, which makes it easier for the top plate and the support plate to open the PCB board after pressing.

[0011] The top plate is fixedly connected to the bottom of all four sides with racks, and the outer walls of the racks are fixedly connected to guide blocks. The outer walls of the guide blocks are slidably connected with grooves, which are opened on the outer walls of the vertical plate.

[0012] With the above structure, under the fixing action of the rack and guide block, the rack moves synchronously through the rotation of the gear disk. The rack moves precisely on the outer wall of the vertical plate through the guide block and the slide, ensuring the movement path of the rack. This facilitates the rack to drive the top plate to move precisely, ensuring the pressing effect of the top plate and the support plate on the PCB board from above and below.

[0013] The uprights are vertically arranged on the surface of the base plate, and the two uprights are symmetrically arranged about the central axis of the support plate.

[0014] By adopting the above structure, two upright plates are symmetrically arranged on the surface of the base plate, allowing the pallet to be stably raised and lowered between the two upright plates through the drive of an electric push rod. Furthermore, the meshing connection between the gear column and the gear groove ensures the stability of the pallet's raising and lowering between the two upright plates, thus guaranteeing the balance and stability of the pallet's lifting and lowering.

[0015] The surface of the tray has multiple positioning holes, and the interior of the top plate has through holes corresponding to the positioning holes. The top plate is arranged parallel to the tray above it.

[0016] The above structure, with the top plate set in a frame shape, and the corresponding positioning holes and through holes, allows users to accurately position the PCB board, ensuring the installation stability of the soldered PCB board on the tray surface. Furthermore, the through-holes and positioning holes allow users to limit the positioning of the PCB board with positioning rods, ensuring the clamping and positioning effect of the PCB board.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] In this invention, a rack is fixedly connected to the outer wall of the pallet. With the rack symmetrically arranged on the outer wall of the gear disk, the pallet moves upward via the electric push rod, simultaneously driving the rack to move. This causes the rack to rotate the gear disk downward. A rack meshes with the outer wall of the gear disk, causing the rack to drive the top plate downward to press the PCB board on the surface of the pallet. This design allows the PCB board to be pressed bidirectionally by the pallet and the top plate after it is placed on the surface of the pallet. This avoids the problem of uneven force on the PCB board caused by unidirectional pressing, prevents PCB board misalignment and pressing instability, and reduces the defect rate of PCB board processing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a PCB board welding positioning and clamping mechanism according to the present invention;

[0020] Figure 2 This is a side view of a PCB board welding positioning and clamping mechanism according to the present invention.

[0021] Figure 3 This is a cross-sectional structural diagram of a PCB board welding positioning and clamping mechanism according to the present invention;

[0022] Figure 4 In this utility model Figure 1 A magnified structural diagram at point A.

[0023] Legend:

[0024] 1. Base plate; 2. Electric push rod; 3. Support plate; 4. Positioning hole; 5. Gear column; 6. Gear groove; 7. Vertical plate; 8. Tooth rack; 9. Gear disc; 10. Rack; 11. Top plate; 12. Return spring; 13. Guide block; 14. Slide groove. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-4 A PCB board welding positioning and clamping mechanism includes a base plate 1. An electric push rod 2 is fixedly connected to the surface of the base plate 1. A support plate 3 is fixedly connected to the output end of the electric push rod 2, and the support plate 3 is arranged parallel above the base plate 1. With this arrangement, the electric push rod 2 can stably drive the support plate 3 when energized. In order to ensure the movement effect of the support plate 3, gear columns 5 are rotatably connected to both ends of the support plate 3. Gear grooves 6 are meshed on the outer walls of the gear columns 5. Vertical plates 7 are fixedly connected to the outer walls of the gear grooves 6. The vertical plates 7 are fixedly connected to the surface of the base plate 1. Specifically, the vertical plates 7 are vertically arranged on the surface of the base plate 1. The two vertical plates 7 are symmetrically arranged about the central axis of the support plate 3. By symmetrically arranging two vertical plates 7 on the surface of the base plate 1, the support plate 3 can stably rise and fall between the two vertical plates through the drive of the electric push rod 2. Moreover, the meshing connection between the gear columns 5 and the gear grooves 6 makes the rise and fall of the support plate 3 between the two vertical plates stable, ensuring the balance and stability of the rise and fall of the support plate 3.

[0027] Furthermore, a rack 8 is fixedly connected to the outer wall of the support plate 3, and a gear disk 9 is movably meshed with the upper outer wall of the rack 8. The gear disk 9 is rotatably connected to the outer wall of the vertical plate 7, and a rack 10 is meshed with the outer wall of the gear disk 9. The rack 10 and the rack 8 are symmetrically arranged about the central axis of the gear disk 9. The rack 10 is slidably connected to the outer wall of the vertical plate 7, and a top plate 11 is fixedly connected to the top of the rack 10. By fixing the top plate 11 to the top of the rack 10, when the gear disk 9 drives the rack 10 to move up and down, the top plate 11 moves synchronously on the support plate 3. The top plate 11 moves upwards, and to achieve the reset effect, reset springs 12 are fixedly connected to the bottom ends of both sides of the top plate 11. The bottom ends of the reset springs 12 are fixedly connected to the top end of the vertical plate 7. With this arrangement, when the gear disk 9 is not rotating, the top plate 11 can be reset upwards by the elasticity of the reset springs 12, which facilitates the secondary opening of the PCB board after the top plate 11 and the support plate 3 are pressed together. Specifically, racks 10 are fixedly connected to the bottom ends of all four sides of the top plate 11, and guide blocks 13 are fixedly connected to the outer walls of the racks 10. A sliding groove 14 is slidably connected to the outer wall of the block 13. The sliding groove 14 is formed on the outer wall of the upright plate 7. Under the fixing action of the rack 10 and the guide block 13, when the rack 10 moves synchronously through the rotation of the gear disk 9, the rack 10 moves precisely on the outer wall of the upright plate 7 through the guide block 13 and the sliding groove 14, ensuring the movement path of the rack 10. This facilitates the rack 10 to drive the top plate 11 to move precisely, ensuring the pressing effect of the top plate 11 and the support plate 3 on the PCB board from above and below. Moreover, in order to achieve precise positioning of the PCB board, the support plate... Multiple positioning holes 4 are provided through the surface of the support plate 3, and through holes are provided inside the top plate 11 corresponding to the positioning holes 4. The top plate 11 is arranged parallel above the support plate 3, forming a frame structure. The corresponding arrangement of the positioning holes 4 and the through holes allows the user to accurately position the PCB board, ensuring the installation stability of the soldered PCB board on the surface of the support plate 3. Furthermore, the through arrangement of the positioning holes 4 and the through holes allows the user to limit and position the PCB board using positioning rods, ensuring the clamping and positioning effect of the PCB board.

[0028] Working principle: During operation, the soldered PCB board to be pressed is precisely positioned on the surface of the tray 3 after being positioned through the positioning hole 4. The electric push rod 2 is energized to drive the tray 3 upward. Under the action of the rotating gear column 5 at both ends of the tray 3, the tray 3 synchronously drives the gear column 5 to mesh with the outer wall of the gear groove 6, ensuring the accuracy of the tray 3's upward path. Simultaneously, by fixing a rack 8 to the outer wall of the tray 3, the rack 8 meshes with the gear disk 9 when moving upward. Under the action of the symmetrically meshing rack 10 on the outer wall of the gear disk 9, the rack 10 moves downward synchronously. With the top plate 11 fixedly connected to the top of the rack 10, the top plate 11 moves downward synchronously. With this setting, when the support plate 3 drives the PCB board on the surface to move upward, the top plate 11 presses the PCB board downward synchronously, ensuring the bidirectional pressing stability of the PCB board. Moreover, with the reset spring 12 set at the bottom of the top plate 11, the rack 10 can be reset upward under the elastic action of the reset spring 12 when it is not driven by the gear disk 9. This makes it convenient for the user to place the PCB board on the surface of the support plate 3. This completes the working principle of the PCB board welding positioning and clamping mechanism.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A PCB board welding positioning and clamping mechanism, comprising a base plate (1), characterized in that: An electric push rod (2) is fixedly connected to the surface of the base plate (1). A support plate (3) is fixedly connected to the output end of the electric push rod (2). The support plate (3) is arranged parallel above the base plate (1). Gear columns (5) are rotatably connected to both ends of the support plate (3). Gear grooves (6) are meshed on the outer walls of the gear columns (5). A vertical plate (7) is fixedly connected to the outer wall of the gear grooves (6). The vertical plate (7) is fixedly connected to the surface of the base plate (1). The outer wall of the support plate (3) is fixedly connected to a rack (8), and the upper outer wall of the rack (8) is movably meshed with a gear disk (9). The gear disk (9) is rotatably connected to the outer wall of the upright plate (7), and the outer wall of the gear disk (9) is meshed with a rack (10). The rack (10) and the rack (8) are symmetrically arranged about the central axis of the gear disk (9).

2. The PCB board welding positioning and clamping mechanism according to claim 1, characterized in that: The rack (10) is slidably connected to the outer wall of the vertical plate (7), and the top of the rack (10) is fixedly connected to the top plate (11). The bottom ends of both sides of the top plate (11) are fixedly connected to the return springs (12), and the bottom ends of the return springs (12) are fixedly connected to the top of the vertical plate (7).

3. The PCB board welding positioning and clamping mechanism according to claim 2, characterized in that: The top plate (11) is fixedly connected to the bottom of all four sides with racks (10), and the outer walls of the racks (10) are fixedly connected with guide blocks (13). The outer walls of the guide blocks (13) are slidably connected with grooves (14), which are opened on the outer walls of the upright plate (7).

4. The PCB board welding positioning and clamping mechanism according to claim 3, characterized in that: The upright plate (7) is vertically arranged on the surface of the base plate (1), and the two upright plates (7) are symmetrically arranged about the central axis of the support plate (3).

5. The PCB board welding positioning and clamping mechanism according to claim 4, characterized in that: The surface of the tray (3) is provided with a plurality of positioning holes (4), and the interior of the top plate (11) is provided with through holes corresponding to the positioning holes (4), and the top plate (11) is arranged parallel above the tray (3).

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