Steel mesh clamping assembly for circuit board processing

Abstract

The utility model discloses a steel mesh clamping assembly for circuit board processing, which comprises a base and two groups of clamping pieces, baffles are symmetrically and fixedly arranged at two ends of the base, the steel mesh is placed between an upper arc-shaped abutting block and a lower arc-shaped abutting block, a motor is started to enable a screw rod to rotate, and the steel mesh is clamped by the clamping pieces. When the lead screw rotates, a first sliding plate in threaded connection with the lead screw slides relative to the vertical plate, a connecting rod fixedly connected with the first sliding plate drives a rotating block to slide in a sliding groove, a swing rod rotates to enable arc-shaped abutting blocks connected to the swing rod to rotate to be close to the steel mesh, the steel mesh is pressed between the upper arc-shaped abutting block and the lower arc-shaped abutting block in an abutting mode, and the steel mesh is clamped; the second sliding plate in threaded connection with the lead screw also controls the abutting plate to abut against and fix the steel mesh in the horizontal direction, in the process, limiting and fixing of the steel mesh in the vertical direction and limiting and fixing of the steel mesh in the horizontal direction can be completed only through two power sources, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a steel mesh clamping component for circuit board processing. Background Art

[0002] The steel mesh, also known as the SMT template, is a special SMT mold whose main function is to help deposit solder paste. The purpose is to transfer the exact amount of solder paste to the exact position on the empty PCB, so the thickness of the steel mesh determines the height of the solder paste on the PCB. After the steel mesh on the production line has been used for a period of time, the thickness of the steel mesh will become smaller due to printing tension and pressure, so the steel mesh needs to be replaced in time to ensure the quality of the produced circuit boards.

[0003] Traditionally, steel mesh clamping utilizes multiple sets of air cylinders to clamp and fix the steel mesh up and down and left and right, respectively. This requires the use of multiple power sources, and the repeated opening and closing of multiple sets of power sources each time is cumbersome and time-consuming, affecting the overall processing progress. Utility Model Content

[0004] The utility model aims to solve the problems mentioned in the background technology and provides a steel mesh clamping assembly for circuit board processing.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a steel mesh clamping assembly for circuit board processing, comprising a base and a clamping member, baffles are symmetrically fixedly arranged at both ends of the base, the clamping member is provided in two groups, and the two groups of the clamping members are respectively arranged on one side of the two baffles close to the base, and the clamping member comprises a driving unit, a transmission unit and a swinging unit for abutting against the steel mesh.

[0006] The driving unit includes a motor and a screw rod, which is coaxially fixed on the output shaft of the motor. The transmission unit includes a sliding plate 1 and a connecting rod for driving the swing unit to swing. The sliding plate 1 is threadedly connected to the screw rod. Two connecting rods are provided, and the two connecting rods are symmetrically fixed on both ends of the sliding plate 1. The swing unit is rotatably connected to the baffle.

[0007] Preferably, the motor is fixedly arranged on the baffle, and the sliding plate 1 is slidably connected to the baffle.

[0008] Vertical plates are symmetrically fixedly arranged at both ends of the baffle, and the swing units are symmetrically fixedly arranged on the vertical plates.

[0009] Preferably, the swing unit comprises a swing rod, a rotating shaft and a rotating block, and the rotating block is rotatably arranged on an end of the connecting rod away from the sliding plate.

[0010] The swing rod is rotatably arranged on the vertical plate, a sliding groove is provided at one end of the swing rod, the rotating block is slidably arranged in the sliding groove, and the other end of the swing rod is in contact with the steel mesh.

[0011] Preferably, one end of the swing rod away from the slide slot is fixedly connected with an arc-shaped pressing block, and the steel mesh is arranged between the arc-shaped pressing blocks.

[0012] Preferably, a clamping piece is also threadedly connected to the screw rod, and the clamping piece includes a sliding plate 2 and an extrusion unit for pressing the steel mesh. The sliding plate 2 is threadedly connected to the screw rod, and the sliding plate 2 is slidably set on the base, and the extrusion unit is symmetrically fixed on both ends of the sliding plate 2.

[0013] Preferably, the extrusion unit comprises a spring and a clamping plate, the spring is fixedly arranged between the second sliding plate and the clamping plate, and the clamping plate is slidably connected to the vertical plate.

[0014] When the screw rod rotates, the sliding plate 2 threadedly connected to the screw rod also slides relative to the bottom plate, driving the clamping plate to be pressed against the side of the steel mesh, thereby further limiting and fixing the steel mesh in the horizontal direction. In the process, only two power sources are used to complete the limiting and fixing of the steel mesh in the vertical direction and the horizontal direction, thereby saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of a steel mesh clamping assembly for circuit board processing according to the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of a steel mesh clamping assembly for circuit board processing according to the utility model after the steel mesh is removed;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 4 for Figure 2Enlarged schematic diagram of the structure at point B in the middle.

[0020] In the figure:

[0021] 1. Base; 2. Clamping part; 3. Baffle; 4. Drive unit; 5. Transmission unit; 6. Swing unit; 7. Motor; 8. Screw; 9. Sliding plate 1; 10. Connecting rod; 11. Vertical plate; 12. Rocker rod; 13. Rotating shaft; 14. Rotating block; 15. Arc-shaped pressing block; 16. Pressing part; 17. Sliding plate 2; 18. Extrusion unit; 19. Spring; 20. Pressing plate. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 As shown, a steel mesh clamping assembly for circuit board processing includes a base 1 and a clamping member 2. Baffles 3 are symmetrically fixedly arranged at both ends of the base 1. Two groups of clamping members 2 are arranged. The two groups of clamping members 2 are respectively arranged on one side of the two baffles 3 close to the base 1. The clamping member 2 includes a driving unit 4, a transmission unit 5 and a swinging unit 6 for abutting against the steel mesh.

[0024] The driving unit 4 includes a motor 7 and a screw 8. The motor 7 is fixed on the baffle 3. The screw 8 is coaxially fixed on the output shaft of the motor 7. The transmission unit 5 includes a sliding plate 9 and a connecting rod 10 for driving the swing unit 6 to swing. The sliding plate 9 is threadedly connected to the screw 8, and the sliding plate 9 is slidingly connected to the baffle 3. Two connecting rods 10 are provided, and the two connecting rods 10 are symmetrically fixed on both ends of the sliding plate 9. The swing unit 6 is rotatably connected to the baffle 3. Four groups of swing units 6 are provided, and one connecting rod 10 can drive two groups of swing units 6 to swing.

[0025] The two ends of the baffle 3 are symmetrically fixed with vertical plates 11, and the swing unit 6 is symmetrically fixed on the vertical plates 11. The swing unit 6 includes a swing rod 12, a rotating shaft 13 and a rotating block 14. The rotating block 14 is rotatably set on the end of the connecting rod 10 away from the sliding plate 9. The swing rod 12 is rotatably set on the vertical plate 11. A sliding groove is opened at one end of the swing rod 12. The rotating block 14 is slidably set in the sliding groove. The other end of the swing rod 12 is in contact with the steel mesh. When the connecting rod 10 slides relative to the vertical plate 11, the connecting rod 10 is The rotatably connected rotating block 14 slides in the slide groove to control the swing of the rocker arm 12. An arc-shaped clamping block 15 is fixedly connected to the end of the rocker arm 12 away from the slide groove. The steel mesh is arranged between the arc-shaped clamping blocks 15. When the rocker arm 12 swings, the arc-shaped clamping block 15 fixedly connected to the rocker arm 12 also swings, so that the arc-shaped clamping blocks 15 arranged on the upper and lower sides swing closer, and one arc-shaped side of the arc-shaped clamping block 15 is pressed against the steel mesh to clamp and fix the steel mesh, thereby realizing the clamping and fixation of the steel mesh in the vertical direction.

[0026] A clamping piece 16 is also threadedly connected to the screw rod 8, and the clamping piece 16 includes a sliding plate 17 and an extrusion unit 18 for pressing the steel mesh. The sliding plate 17 is threadedly connected to the screw rod 8, and the sliding plate 17 is slidably set on the base 1. The extrusion unit 18 is symmetrically fixed on both ends of the sliding plate 17. The extrusion unit 18 includes a spring 19 and a clamping plate 20. The spring 19 is fixed between the sliding plate 17 and the clamping plate 20. The clamping plate 20 is slidably connected to the vertical plate 11. When the screw rod 8 rotates, the sliding plate 17 is also driven to slide relative to the vertical plate 11, so that the spring 19 is compressed, and the clamping plate 20 fixedly connected to the spring 19 presses the steel mesh to achieve horizontal limitation of the steel mesh.

[0027] When the utility model is in use, the steel mesh is placed between the upper and lower arc-shaped clamping blocks 15, and the motors 7 on both sides are started to rotate the screw rod 8 fixedly connected to the output shaft of the motor 7, so that the sliding plate 9 threadedly connected to the screw rod 8 slides relative to the vertical plate 11, and the connecting rod 10 fixedly connected to the sliding plate 9 slides relative to the vertical plate 11, driving the rotating block 14 to slide in the sliding groove on the swing rod 12, so that the swing rod 12 rotates, and the arc-shaped clamping block 15 fixedly connected to the swing rod 12 rotates close to the steel mesh, so that the steel mesh is clamped between the upper and lower arc-shaped clamping blocks 15, and the steel mesh is clamped and limited. When the screw rod 8 rotates, the sliding plate 2 17 threadedly connected to the screw rod 8 also slides relative to the bottom plate, driving the clamping plates 20 on both sides to be pressed against the side surfaces of the steel mesh, and further fixing the steel mesh in the horizontal direction.

[0028] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A steel mesh clamping assembly for circuit board processing, comprising a base (1) and a clamping member (2), wherein baffles (3) are symmetrically fixedly arranged at both ends of the base (1), and the clamping member (2) is provided in two groups, and the two groups of the clamping members (2) are respectively arranged on one side of two baffles (3) close to the base (1), characterized in that: The clamping member (2) comprises a driving unit (4), a transmission unit (5) and a swinging unit (6) for abutting against the steel mesh; The driving unit (4) comprises a motor (7) and a screw rod (8), wherein the screw rod (8) is coaxially fixedly arranged on the output shaft of the motor (7), and the transmission unit (5) comprises a sliding plate (9) and a connecting rod (10) for driving the swing unit (6) to swing, wherein the sliding plate (9) is threadedly connected to the screw rod (8), and two connecting rods (10) are arranged, and the two connecting rods (10) are symmetrically fixedly arranged on the two ends of the sliding plate (9), and the swing unit (6) is rotationally connected to the baffle (3).

2. The steel mesh clamping assembly for circuit board processing according to claim 1, characterized in that: The motor (7) is fixedly arranged on the baffle (3), and the sliding plate (9) is slidably connected to the baffle (3); Vertical plates (11) are symmetrically fixedly arranged at both ends of the baffle (3), and the swing unit (6) is symmetrically fixedly arranged on the vertical plates (11).

3. The steel mesh clamping assembly for circuit board processing according to claim 2, characterized in that: The swing unit (6) comprises a swing rod (12), a rotating shaft (13) and a rotating block (14); the rotating block (14) is rotatably arranged on an end of the connecting rod (10) away from the sliding plate (9); The swing rod (12) is rotatably arranged on the vertical plate (11), one end of the swing rod (12) is provided with a slide groove, the rotating block (14) is slidably arranged in the slide groove, and the other end of the swing rod (12) is in contact with the steel mesh.

4. The steel mesh clamping assembly for circuit board processing according to claim 3, characterized in that: An end of the swing rod (12) away from the slide slot is fixedly connected to an arc-shaped abutting block (15), and the steel mesh is arranged between the arc-shaped abutting blocks (15).

5. The steel mesh clamping assembly for circuit board processing according to claim 2, characterized in that: The screw rod (8) is also threadedly connected to a clamping member (16), and the clamping member (16) includes a second sliding plate (17) and an extrusion unit (18) for pressing against the steel mesh. The second sliding plate (17) is threadedly connected to the screw rod (8), and the second sliding plate (17) is slidably arranged on the base (1), and the extrusion unit (18) is symmetrically fixedly arranged on both ends of the second sliding plate (17).

6. The steel mesh clamping assembly for circuit board processing according to claim 5, characterized in that: The extrusion unit (18) comprises a spring (19) and a pressing plate (20) pressed against the steel mesh, wherein the spring (19) is fixedly arranged between the second sliding plate (17) and the pressing plate (20), and the pressing plate (20) is slidably connected to the vertical plate (11).

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