Automatic alignment device of printed circuit board

Abstract

The utility model discloses an automatic alignment device of a printed circuit board, which comprises a moving block, telescopic rods are rotatably arranged on two sides of the moving block, and a claw clamp is rotatably arranged at one end of each telescopic rod; a sliding groove is formed in the moving block, a right-angle rod is arranged on the sliding groove in a sliding mode, a claw clamp is rotationally arranged at one end of the right-angle rod, and a trigger piece located on the moving block is fixedly arranged at a moving stopping position of the other end of the right-angle rod; the claw clamp comprises a pressing part and a grabbing part, and the distance between the vertex of the pressing part and the axis is larger than the distance between the vertex of the grabbing part and the axis. According to the automatic alignment device of the printed circuit board provided by the utility model, the alignment component on the threaded rod is driven by the motor to realize the alignment process, and the cross section shape of the circuit board clamping claw is changed, so that the circuit board can be pressed and lifted by the circuit board clamping claw; and meanwhile, the right-angle rod stretches out and draws back to drive the claw clamp to move, so that the circuit boards with different sizes are automatically aligned.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic alignment devices, in particular to an automatic alignment device for a printed circuit board. Background Art

[0002] A partial alignment device of a printed circuit board currently achieves the effect of aligning the circuit board by cooperating with an infrared line marker, in combination with a printed circuit board alignment device disclosed in Publication (Announcement) No.: CN202889806U, Publication (Announcement) Date: 2013-04-17.

[0003] Based on the prior art of the above patent, it can be known that when encountering printed circuit boards of different specifications, the infrared line marker needs to be manually adjusted and aligned again, which increases the operations in the alignment process and makes the entire alignment process complicated. Utility Model Content

[0004] The utility model aims to provide an automatic alignment device for a printed circuit board, so as to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic alignment device for a printed circuit board, comprising a moving block, on both sides of which telescopic rods are rotatably provided, and one end of the telescopic rods is rotatably provided with a claw clamp;

[0006] A slide groove is provided in the moving block, a right-angle rod is slidably provided on the slide groove, a claw clamp is rotatably provided at one end of the right-angle rod, and a trigger member located on the moving block is fixedly provided at the moving end position of the other end;

[0007] The claw clamp includes a pressing part and a grasping part, and the distance between the vertex of the pressing part and the axis is greater than the distance between the vertex of the grasping part and the axis.

[0008] Preferably, it further comprises a backing plate on which a collection groove is arranged in a circumferential array.

[0009] Preferably, the first motor and the second motor are further included, and the first bidirectional threaded rod and the second bidirectional threaded rod are respectively provided for transmission thereon.

[0010] Preferably, a return spring is arranged in the telescopic rod.

[0011] Preferably, a return compression spring is provided on the right-angle rod.

[0012] Preferably, the pad is provided with limiting grooves arranged in a circular array.

[0013] Preferably, the moving blocks are arranged in a circular array and correspond one-to-one with the limiting grooves.

[0014] Preferably, the first bidirectional threaded rod and the second bidirectional threaded rod are located in different horizontal planes and are arranged perpendicular to each other, and the moving blocks are provided at both ends of the two rods.

[0015] In the above technical scheme, the utility model provides an automatic alignment device for a printed circuit board, which has the following beneficial effects: a motor is used to drive the rotation of a bidirectional threaded rod to move the alignment component toward the middle of the threaded rod to realize the alignment process, and the cross-sectional shape of the clamping member is changed so that it can press and grab the circuit board. At the same time, automatic alignment of circuit boards of different sizes is realized through the extension and contraction of the right-angle rod and the movement of the moving block, which changes the alignment operation performed by manually adjusting the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of a cross-sectional structure of a claw clamp provided in an embodiment of the utility model;

[0018] Figure 2 A schematic structural diagram of a cross-section of an automatic circuit board alignment structure provided by an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the structure of the automatic circuit board alignment structure provided by an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the structure of the automatic circuit board alignment structure provided by an embodiment of the utility model when viewed from above;

[0021] Description of reference numerals:

[0022] 1. Moving block; 11. Claw clamp; 112. Pressing part; 113. Grasping part; 12. Telescopic rod; 13. Right-angle rod; 111. Reset spring; 14. Trigger; 15. Reset compression spring; 16. Pressing convex block; 2. Pad; 21. Aggregate trough; 22. Strip; 23. Limiting groove; 3. First motor; 31. First bidirectional threaded rod; 4. Second motor; 41. Second bidirectional threaded rod. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] like Figure 1-4 As shown, an automatic alignment device for a printed circuit board comprises a moving block 1, on both sides of which telescopic rods 12 are rotatably provided, and one end of the telescopic rod 12 is rotatably provided with a claw clamp 11;

[0025] A slide groove is provided in the moving block 1, and a right-angle rod 13 is slidably provided on the slide groove. A claw clamp 11 is rotatably provided at one end of the right-angle rod 13, and a trigger member 14 located on the moving block 1 is fixedly provided at the moving end position of the other end.

[0026] The claw clamp 11 comprises a pressing part 112 and a grasping part 113 , and the distance between the vertex of the pressing part 112 and the axis is greater than the distance between the vertex of the grasping part 113 and the axis.

[0027] Specifically, a slide groove is provided at the top of the moving block 1, and a right-angle rod 13 is slidably provided on the slide groove. One end of the right-angle rod 13 is rotatably connected to the claw clamp 11. Telescopic rods 12 are rotatably provided on both sides of the top of the moving block 1. The other end of the telescopic rod 12 is rotatably connected to the top of the claw clamp 11. The claw clamp 11 includes a pressing part 112 and a grasping part 113, which are located at the top and bottom of the claw clamp 11. The distance between the vertex of the pressing part 112 and the axis is greater than the distance between the vertex of the grasping part 113 and the axis. The motor drives the threaded rod to drive the moving block 1 When the grasping part 113 of the claw clamp 11 touches the circuit board, it will rotate toward the direction of the moving block 1, and the pressing part 112 will rotate toward the circuit board. The rotation of the pressing part 112 stretches the telescopic rod 12. When the top of the pressing part 112 touches the circuit board, it stops rotating. At this time, the circuit board is pressed, the moving block 1 continues to move, the right-angle rod 13 begins to shrink, and the other end of the right-angle rod 13 moves toward the direction of the moving block 1. When it touches the trigger part 14 set on the moving block 1, the motor stops rotating and the moving block 1 stops moving.

[0028] In the above technology, a motor is used to drive the moving block 1 on the threaded rod to realize the alignment process, and the cross-sectional shape of the claw clamp 11 is changed so that it can press and grab the circuit board. At the same time, the right-angle rod 13 can be telescopically moved. Two motors control two pairs of moving blocks 1 to realize automatic alignment of circuit boards of different sizes.

[0029] As an embodiment further provided by the present invention, it also includes a backing plate 2 on which a collection groove 21 is arranged in a circumferential array.

[0030] Specifically, the backing plate 2 is provided with collecting grooves 21 arranged in a circumferential array, and when drilling holes in the fixed circuit board, the collecting grooves 21 can collect debris.

[0031] As an embodiment further provided by the present invention, the first motor 3 and the second motor 4 are also included, and the first bidirectional threaded rod 31 and the second bidirectional threaded rod 41 are respectively provided for transmission.

[0032] Specifically, the output end of the first motor 3 is connected to the first bidirectional threaded rod 31, and the output end of the second motor 4 is connected to the second bidirectional threaded rod 41. The first motor 3 drives the first bidirectional threaded rod 31 to rotate, and the second motor 4 drives the second bidirectional threaded rod 41 to rotate, and the movement of the moving block 1 is driven by the rotation of the bidirectional threaded rod.

[0033] As an embodiment further provided by the present invention, a return spring 111 is disposed in the telescopic rod 12 .

[0034] Specifically, a return spring 111 is disposed in the telescopic rod 12 , and when the telescopic rod 12 is stretched or compressed, the return spring 111 can keep it in the initial position.

[0035] As an embodiment further provided by the present invention, a return compression spring 15 is provided on the right-angle rod 13 .

[0036] Specifically, a return compression spring 15 is provided on the right-angle rod 13, and the return compression spring 15 can return the right-angle rod 13 to the initial position.

[0037] As an embodiment further provided by the present invention, the pad 2 is provided with limiting grooves 23 arranged in a circular array.

[0038] Specifically, the backing plate 2 is provided with limiting grooves 23 arranged in a circumferential array, and the limiting grooves 23 limit the sliding of the moving block 1 .

[0039] As an embodiment further provided by the present invention, the moving blocks 1 are arranged in a circular array and correspond one-to-one with the limiting grooves 23 .

[0040] Specifically, the moving blocks 1 are arranged in a circular array on four sides of the pad 2 , and each moving block 1 corresponds to a limiting groove 23 . The circuit board is aligned by moving the moving blocks 1 in four directions.

[0041] As an embodiment further provided by the present invention, the first bidirectional threaded rod 31 and the second bidirectional threaded rod 41 are located in different horizontal planes and are arranged perpendicular to each other, and moving blocks 1 are provided on both ends of the two rods for transmission.

[0042] Specifically, one end of the first bidirectional threaded rod 31 and the second bidirectional threaded rod 41 are respectively connected to the first motor 3 and the second motor 4 , and two ends of the first bidirectional threaded rod 31 and the second bidirectional threaded rod 41 respectively drive two moving blocks 1 .

[0043] Working principle: When in use, place the circuit board on the strip 22 of the collecting trough 21, turn on the first motor 3 and the second motor 4, the first motor 3 and the second motor 4 respectively drive the first bidirectional threaded rod 31 and the second bidirectional threaded rod 41 to start rotating, the first bidirectional threaded rod 31 and the second bidirectional threaded rod 41 drive the moving block 1 to move along the limiting groove 23 toward the center of the inscribed circle of the pad 2, when the claw clamp 11 on the moving block 1 touches the circuit board, the two sides of the short side of the circuit board will be aligned first, when the two sides of the short side are aligned, the moving block 1 continues to advance, and the grasping part 113 of the claw clamp 11 is squeezed to rotate toward the moving block 1 The pressing piece 112 rotates toward the circuit board, and the vertex position is constantly approaching the circuit board. When the vertex position of the pressing piece 112 is attached to the circuit board, the telescopic rod 12 is in a stretched state, and the return spring 111 in the telescopic rod 12 is in a compressed state. At this time, the moving block 1 continues to advance, and the right-angle rod 13 begins to shrink into the moving block 1 along the slide groove opened in the moving block 1. The other end of the right-angle rod 13 is connected to the outside through the lower part of the slide groove, and a pressing protrusion 16 is fixedly provided at the end. The pressing protrusion 16 begins to move toward the moving block 1, and the movement of the pressing protrusion 16 ends at a trigger member 14 fixedly provided on the moving block 1. , the pressing protrusion 16 presses the trigger member 14, and the pressed trigger member 14 will brake the motor. At this time, the alignment action is completed. When the use is completed, the pressing switch triggers the motor to reverse, and the reset compression spring 15 on the right-angle rod 13 pushes the right-angle rod 13 back to the initial position. The pressing part 112 at the top of the claw clamp 11 is rotated toward the direction of the moving block 1 by the pulling force of the telescopic rod 12, and the grasping part 113 rotates toward the circuit board, and lifts the circuit board through the groove formed between the pressing part 112.

[0044] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic alignment device for a printed circuit board, characterized in that: It comprises a moving block (1) on both sides of which telescopic rods (12) are rotatably provided, and a claw clamp (11) is rotatably provided at one end of the telescopic rod (12); The moving block (1) has a slide groove in it, a right-angle rod (13) is slidably arranged on the slide groove, a claw clamp (11) is rotatably arranged on one end of the right-angle rod (13), and a trigger member (14) located on the moving block (1) is fixedly arranged at the movement stop position of the other end; The claw clamp (11) comprises a pressing part (112) and a grabbing part (113), and the distance between the vertex of the pressing part (112) and the axis is greater than the distance between the vertex of the grabbing part (113) and the axis.

2. The automatic alignment device for a printed circuit board according to claim 1, characterized in that: It also comprises a backing plate (2), on which a collection groove (21) is arranged in a circumferential array.

3. The automatic alignment device for a printed circuit board according to claim 1, characterized in that: It also comprises a first motor (3) and a second motor (4), on which a first bidirectional threaded rod (31) and a second bidirectional threaded rod (41) are respectively provided for transmission.

4. The automatic alignment device for a printed circuit board according to claim 1, characterized in that: A return spring (111) is arranged inside the telescopic rod (12).

5. The automatic alignment device for a printed circuit board according to claim 1, characterized in that: The right-angle rod (13) is provided with a return compression spring (15).

6. The automatic alignment device for a printed circuit board according to claim 2, characterized in that: The backing plate (2) is provided with limiting grooves (23) arranged in a circular array, and the moving blocks (1) are arranged in a circular array and correspond one-to-one to the limiting grooves (23).

7. The automatic alignment device for a printed circuit board according to claim 3, characterized in that: The first bidirectional threaded rod (31) and the second bidirectional threaded rod (41) are located on different horizontal planes and are arranged perpendicular to each other, and the moving blocks (1) are provided at both ends of the two rods.

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