Side positioning plate edge clamp

Abstract

The utility model relates to a side clamp for a side positioning plate. The side clamp comprises a screen frame, the first clamping mechanism and the second clamping mechanism are oppositely arranged at the upper end and the lower end of the screen frame respectively so as to clamp the upper side and the lower side of a circuit board, and the first clamping mechanism and the second clamping mechanism are arranged to be close to each other or away from each other; the stretching mechanism is arranged on the screen frame, and the stretching mechanism can push the first clamping mechanism towards the side away from the second clamping mechanism; according to the utility model, not only is the problem of inaccurate circuit board positioning solved, but also circuit boards with different sizes and thick bottoms can be clamped, and the clamping efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp for positioning a plate edge. Background Art

[0002] PCB printing equipment refers to special equipment used to print circuit patterns on printed circuit boards (PCBs). In vertical printing equipment, PCBs are usually placed vertically so that conductive materials such as ink or printing ink can be evenly covered on the surface of the PCB to form circuit patterns. At present, in the traditional PCB printing industry, the PCB clamps of vertical printing equipment generally have problems such as inaccurate positioning and loose clamping. In addition, since the circuit board is placed vertically, when the circuit board is thin or long, the middle part of the circuit board will bend and sag, resulting in reduced printing accuracy. Therefore, the current clamps can only clamp thick circuit boards, thereby affecting production efficiency, equipment efficacy, production yield, etc. Utility Model Content

[0003] To this end, the technical problem to be solved by the utility model is to overcome the common problems of inaccurate positioning, loose clamping or only being able to clamp thick circuit boards in the prior art PCB board clamps, and thus provide a board edge positioning clamp, which not only solves the problem of inaccurate positioning of the circuit board, but also can clamp circuit boards of different sizes and thick bottoms, thereby improving the clamping efficiency.

[0004] In order to solve the above technical problems, the utility model provides a plate edge positioning fixture, comprising a screen frame;

[0005] A first clamping mechanism and a second clamping mechanism, wherein the first clamping mechanism and the second clamping mechanism are respectively arranged at the upper and lower ends of the screen frame to clamp the upper and lower sides of the circuit board, and the first clamping mechanism and the second clamping mechanism are arranged to be able to approach or move away from each other;

[0006] A stretching mechanism is arranged on the screen frame, and the stretching mechanism can push the first clamping mechanism toward a side away from the second clamping mechanism.

[0007] In one embodiment of the present invention, the stretching mechanism includes a first driver and a push block arranged at the output end of the first driver, and the push block is located between the first clamping mechanism and the second clamping mechanism and is located on a side close to the first clamping mechanism.

[0008] In one embodiment of the utility model, it also includes a positioning mechanism arranged on the screen frame, the positioning mechanism includes a second driver, a third driver, a first fixed plate and a positioning block slidably arranged on the first fixed plate, the first fixed plate is arranged on the side of the screen frame close to the second clamping mechanism, and the first fixed plate is arranged between the first clamping mechanism and the second clamping mechanism, the positioning block is arranged to be able to move along the X-axis direction, the second driver drives the first fixed plate to move along the Y-axis direction, and the third driver drives the first fixed plate to move along the Z-axis direction.

[0009] In an embodiment of the present invention, the first fixing plate is provided with a handle, and the handle is connected to the positioning block.

[0010] In one embodiment of the utility model, the first clamping mechanism and the second clamping mechanism both include a second fixed plate, a first clamping assembly arranged on the second fixed plate, the first clamping assembly includes a hinged first clip and a second clip, and a fourth driver, the first clip and the second clip form a fixed blade, and the fourth driver drives the first clip to rotate so that the fixed blade clamps the circuit board.

[0011] In one embodiment of the present invention, the second fixing plate of the second clamping mechanism is fixedly disposed on the screen frame.

[0012] In one embodiment of the present invention, the first clamping mechanism and the second clamping mechanism also include a second clamping assembly arranged on the second fixed plate, and the second clamping assembly includes a fifth driver and a wedge block, and the fifth driver drives the wedge block to be inserted between the first clamp and the second clamp to lock the first clamp and the second clamp.

[0013] In one embodiment of the utility model, it also includes a height adjustment mechanism arranged on the screen frame, the height adjustment mechanism includes a sixth driver and two screw rods arranged in parallel, the sixth driver drives the two screw rods to rotate synchronously, the two ends of the second fixed plate of the first clamping mechanism are respectively threadedly connected to the two screw rods, and the two screw rods drive the second fixed plate of the first clamping mechanism to approach or move away from the second fixed plate of the second clamping mechanism.

[0014] In one embodiment of the utility model, it also includes two guide rods arranged on the left and right sides of the screen frame, and the two ends of the second fixing plate of the first clamping mechanism are slidably connected to the two guide rods, and one of the guide rods passes through the through hole of the push block.

[0015] In one embodiment of the present utility model, an elastic element is provided between the pushing block and the second fixing plate of the first clamping mechanism, and the elastic element is sleeved on the guide rod.

[0016] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0017] The edge positioning board edge clamp described in the utility model can adjust the position of one side of the circuit board after the first clamping mechanism clamps it so that the second clamping mechanism can clamp the other side of the circuit board, thereby improving the positioning accuracy of the circuit board; after the first clamping mechanism and the second clamping mechanism clamp the vertically placed circuit board, the stretching mechanism applies an upward pulling force to the first clamping mechanism to ensure the parallelism between the circuit board and the screen frame, which not only ensures the printing accuracy, but also can clamp circuit boards of various sizes such as thin circuit boards or long circuit boards, thereby improving the positioning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0019] Figure 1 It is a structural schematic diagram of a front view of a plate edge positioning fixture in a preferred embodiment of the utility model.

[0020] Figure 2 for Figure 1 The structural schematic diagram of the enlarged view of 2 is shown.

[0021] Figure 3 for Figure 1 The structure diagram of the first clamping mechanism, the second clamping mechanism and the front view of the circuit board of the edge positioning clamp is shown.

[0022] Figure 4 for Figure 1 The schematic diagram of the structure of the side view of the edge positioning plate edge clamp shown.

[0023] Figure 5 for Figure 1 The structural schematic diagram of the positioning mechanism of the edge positioning plate edge clamp is shown.

[0024] Explanation of the reference numerals in the specification: 1. screen frame; 2. stretching mechanism; 21. first driver; 22. push block; 23. elastic element; 3. sixth driver; 31. guide rod; 32. screw rod; 33. conveyor belt; 4. positioning mechanism; 41. mounting plate; 42. third driver; 43. first fixing plate; 44. second driver; 45. positioning block; 46. handle; 51. first clamping mechanism; 511. second fixing plate; 512. first clamping piece; 513. wedge block; 514. fourth driver; 515. fifth driver; 52. second clamping mechanism; 6. circuit board. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0026] Example

[0027] In one embodiment of the present invention, referring to Figure 1 As shown, a plate edge positioning fixture of the utility model comprises a rectangular mesh frame 1 composed of four connecting rods;

[0028] A first clamping mechanism 51 and a second clamping mechanism 52, wherein the first clamping mechanism 51 and the second clamping mechanism 52 are respectively arranged at the upper and lower ends of the screen frame 1 to clamp the upper and lower sides of the circuit board 6, and the first clamping mechanism 51 and the second clamping mechanism 52 are arranged to be able to approach or move away from each other so as to clamp circuit boards 6 of different sizes. In this embodiment, the second clamping mechanism 52 is fixedly arranged, and the first clamping mechanism 51 can move up and down;

[0029] The stretching mechanism 2 is arranged on the left side of the mesh frame 1. The stretching mechanism 2 is used to push the first clamping mechanism 51 along the Y-axis direction to the side away from the second clamping mechanism 52 after the first clamping mechanism 51 and the second clamping mechanism 52 clamp the circuit board 6, so that the first clamping mechanism 51 and the upper part of the circuit board 6 are slightly displaced upward to avoid bending of the middle part of the thin circuit board 6.

[0030] In one embodiment of the present invention, referring to Figure 1 As shown, the stretching mechanism 2 includes a first driver 21 and a pushing block 22 arranged at the output end of the first driver 21. The pushing block 22 is located between the first clamping mechanism 51 and the second clamping mechanism 52, and is located on a side close to the first clamping mechanism 51. The pushing block 22 applies an upward force to push the first clamping mechanism 51. The first driver 21 is preferably a cylinder.

[0031] In one embodiment of the present invention, referring to Figure 1 and 5 As shown, it also includes a positioning mechanism 4 arranged at the bottom of the screen frame 1, the positioning mechanism 4 includes a second driver 44, a third driver 42, a first fixing plate 43 and a positioning block 45 slidably arranged on the first fixing plate 43, the first fixing plate 43 is arranged on the side of the screen frame 1 close to the second clamping mechanism 52, the first fixing plate 43 extends along the length direction of the lower connecting rod of the screen frame 1, and the first fixing plate 43 is arranged between the first clamping mechanism 51 and the second clamping mechanism 52, the positioning block 45 is arranged to be able to move along the X-axis direction, the second driver 44 drives the first fixing plate 43 to move along the Y-axis direction, and the third driver 42 drives the first fixed plate 43 to move along the Z-axis direction. Specifically, before the circuit board 6 is placed, the first fixed plate 43 is located between the first clamping mechanism 51 and the second clamping mechanism 52. Before placing the circuit board, first adjust the fixing block 45 to a suitable position, and then vertically place the lower side of the circuit board 6 on the first fixed plate 43, and the right side of the circuit board is pressed against the fixing block 45 to achieve positioning. After the first clamping mechanism 51 clamps the upper side of the circuit board 6, the second driver 44 drives the first fixed plate 43 to descend, and the third driver 42 drives the first fixed plate to retreat so that the second clamping mechanism 52 can clamp the lower side of the circuit board 6. The second driver 44 and the third driver 42 are preferably cylinders.

[0032] In one embodiment of the present invention, referring to Figure 5 As shown, the first fixing plate 43 is provided with a handle 46 , and the handle 46 is connected to the positioning block 45 , and the position of the fixing block 45 can be accurately moved by turning the handle.

[0033] In one embodiment of the present invention, referring to Figure 3 As shown, the first clamping mechanism 51 and the second clamping mechanism 52 both include a second fixed plate 511 and a first clamping assembly arranged on the second fixed plate 511, the first clamping assembly is used to clamp the edge of the circuit board 6, the first clamping assembly includes a hinged first clip 512 and a second clip, and a fourth driver 514, the second clip is fixedly connected to the second fixed plate 511, the first clip 512 and the second clip form a fixed blade, and the fourth driver 514 drives the first clip 512 to rotate so that the fixed blade clamps the circuit board 6; the fourth driver 514 is preferably a cylinder.

[0034] In one embodiment of the present invention, the second fixing plate 511 of the second clamping mechanism 52 is fixedly disposed on a connecting rod at the lower portion of the screen frame 1 .

[0035] In one embodiment of the present invention, referring to Figure 3As shown, since the fourth driver 514 of the first clamping assembly cannot provide sufficient clamping force, the circuit board 6 will be separated from the first clip 512 and the second clip. In order to improve the clamping force of the first clip 512 and the second clip, the first clamping mechanism 51 and the second clamping mechanism 52 also include a second clamping assembly arranged on the second fixed plate 511, and the second clamping assembly includes a fifth driver 515 and a wedge block 513. The fifth driver 515 drives the wedge block 513 to be inserted between the first clip 512 and the second clip to match the inclined surface of the first clip 512 to lock the first clip 512 and the second clip to prevent the first clip 512 from loosening; the fifth driver is preferably a cylinder.

[0036] In one embodiment of the present invention, referring to Figure 1 As shown, it also includes a height-adjusting mechanism arranged on the screen frame 1, and the height-adjusting mechanism includes a sixth driver 3 and two parallel screw rods 32, the two screw rods 32 are driven by a conveyor belt 33, the sixth driver 3 is arranged on the left side of the screen frame 1, and the sixth driver 3 drives the two screw rods 32 to rotate synchronously, and the two ends of the second fixed plate 511 of the first clamping mechanism 51 are respectively threadedly connected to the two screw rods 32, and the two screw rods 32 drive the second fixed plate 511 of the first clamping mechanism 51 to approach or move away from the second fixed plate 511 of the second clamping mechanism 52; the sixth driver 3 is preferably a motor.

[0037] In one embodiment of the present invention, referring to Figure 1 As shown, it also includes two guide rods 31 arranged on the left and right sides of the screen frame 1, and the two ends of the second fixed plate 511 of the first clamping mechanism 51 are slidably connected to the two guide rods 31, wherein the guide rod 31 on the right side passes through the through hole of the pushing block 22 so that the stopping block 22 can move smoothly.

[0038] In one embodiment of the present invention, referring to Figure 2 As shown, an elastic element 23 is provided between the pushing block 22 and the second fixing plate 511 of the first clamping mechanism 51 , and the elastic element 23 is sleeved on the guide rod 31 . The elastic element 23 is used to buffer the stopping block 22 ; the elastic element 23 is preferably a spring.

[0039] The working principle of the edge positioning plate edge fixture described in the utility model is:

[0040] The height adjustment mechanism first adjusts the height of the first clamping mechanism 51 according to the length of the circuit board 6, and then the second driver 44 and the third driver 42 push the first fixing plate 43 out to the top of the second clamping mechanism 52. The operator then adjusts the position of the fixing block 45 according to the width of the circuit board 6. Then the operator inserts the upper side of the circuit board 6 into the fixing blade of the first clamping mechanism 51, and vertically places the lower part of the circuit board 6 on the first fixing plate 43 with the right side of the circuit board 6 close to the fixing block 45. Then the fourth driver 514 of the first clamping mechanism 51 drives the first clamp 512 Rotate to clamp the upper side of the circuit board 6, then the fifth driver 515 drives the wedge block 513 to extend and lock the first clamp 512 and the second clamp, the circuit board 6 is clamped for the first time, then the second driver 44 drives the first fixed plate 43 to descend, the third driver drives the first fixed plate 43 to retreat, similarly, then the second clamping mechanism 52 clamps the lower side of the circuit board 6, the circuit board 6 is clamped for the second time, then the first driver 21 lifts the push block 22, the push block 22 applies an upward thrust to the first fixed plate 43 of the first clamping mechanism 51 to prevent the circuit board 6 from bending and sagging.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A clamp for positioning a plate edge, characterized in that: Screen frame; A first clamping mechanism and a second clamping mechanism, wherein the first clamping mechanism and the second clamping mechanism are respectively arranged at the upper and lower ends of the screen frame to clamp the upper and lower sides of the circuit board, and the first clamping mechanism and the second clamping mechanism are arranged to be able to approach or move away from each other; A stretching mechanism is arranged on the screen frame, and the stretching mechanism can push the first clamping mechanism toward a side away from the second clamping mechanism.

2. The edge positioning plate clamp according to claim 1, characterized in that: The stretching mechanism comprises a first driver and a pushing block arranged at the output end of the first driver. The pushing block is located between the first clamping mechanism and the second clamping mechanism and is located on a side close to the first clamping mechanism.

3. The edge positioning plate clamp according to claim 2, characterized in that: It also includes a positioning mechanism arranged on the screen frame, the positioning mechanism includes a second driver, a third driver, a first fixed plate and a positioning block slidably arranged on the first fixed plate, the first fixed plate is arranged on a side of the screen frame close to the second clamping mechanism, and the first fixed plate is arranged between the first clamping mechanism and the second clamping mechanism, the positioning block is configured to be able to move along the X-axis direction, the second driver drives the first fixed plate to move along the Y-axis direction, and the third driver drives the first fixed plate to move along the Z-axis direction.

4. The edge positioning plate clamp according to claim 3, characterized in that: The first fixing plate is provided with a handle, and the handle is connected to the positioning block.

5. The edge positioning plate clamp according to claim 2, characterized in that: The first clamping mechanism and the second clamping mechanism both include a second fixed plate, a first clamping assembly arranged on the second fixed plate, the first clamping assembly includes a hinged first clip and a second clip, and a fourth driver, the first clip and the second clip form a fixed blade, and the fourth driver drives the first clip to rotate so that the fixed blade clamps the circuit board.

6. The edge positioning plate clamp according to claim 5, characterized in that: The second fixing plate of the second clamping mechanism is fixedly arranged on the screen frame.

7. The edge positioning plate clamp according to claim 5, characterized in that: The first clamping mechanism and the second clamping mechanism also include a second clamping assembly arranged on the second fixed plate, and the second clamping assembly includes a fifth driver and a wedge block. The fifth driver drives the wedge block to be inserted between the first clamp and the second clamp to lock the first clamp and the second clamp.

8. The edge positioning plate clamp according to claim 5, characterized in that: It also includes a height-adjusting mechanism arranged on the screen frame, the height-adjusting mechanism includes a sixth driver and two screw rods arranged in parallel, the sixth driver drives the two screw rods to rotate synchronously, the two ends of the second fixed plate of the first clamping mechanism are respectively threadedly connected to the two screw rods, and the two screw rods drive the second fixed plate of the first clamping mechanism to approach or move away from the second fixed plate of the second clamping mechanism.

9. The edge positioning plate clamp according to claim 5, characterized in that: It also includes two guide rods arranged on the left and right sides of the screen frame, and the two ends of the second fixing plate of the first clamping mechanism are slidably connected to the two guide rods, and one of the guide rods passes through the through hole of the push block.

10. The edge positioning plate clamp according to claim 9, characterized in that: An elastic element is provided between the pushing block and the second fixing plate of the first clamping mechanism, and the elastic element is sleeved on the guide rod.

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