Flexible circuit board jig

Abstract

The utility model relates to the technical field of flexible circuit board processing, in particular to a flexible circuit board jig, which is characterized in that a plurality of air holes are uniformly distributed in the bottom surface of a hollow box body; the inner cavity of the hollow box body is connected with a negative pressure connecting pipe; the hollow box body is in sliding connection with the upper fixing plate; a second positioning block is arranged on the surface of one side of the hollow box body; the inner side surface of the reference table is a reference surface; a wedge-shaped surface is arranged between the reference surface and the top surface of the reference table; and a first spring is connected between the hollow box body and the upper fixing plate. When the jig structure is used, the feeding positioning of the circuit board can be more accurate, and the detection accuracy of the circuit board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit board processing, in particular to a flexible circuit board fixture. Background Art

[0002] Flexible circuit boards are a type of foldable printed circuit boards that are thin and light, and are often used in digital products that are small in size and weight. Flexible circuit boards need to be electrically tested after being cut and formed; the stacked circuit boards need to be grabbed from the loading platform A one by one by the loading fixture and placed in the electrical inspection station for testing.

[0003] In the existing loading jig, the loading jig is connected to the robot arm, and the loading is generally performed by combining the translation module and the lifting module. The jig formation is controlled by the translation module to achieve the gripping position control of the jig. The loading accuracy required for the circuit board is high, and it is necessary to ensure that the circuit board grabbed each time is in the same position of the loading jig.

[0004] Although the fixture of this feeding structure is simple in structure, there is no positioning structure between the loading platform A, the inspection platform and the grabbing fixture, and the fixture cannot accurately align with the specified position of the loading platform A. This feeding structure has low feeding accuracy and is difficult to adapt to the precise inspection and feeding of some small-sized flexible circuit boards. Utility Model Content

[0005] The purpose of the utility model is to provide a flexible circuit board fixture in view of the defects and shortcomings of the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model describes a flexible circuit board jig, which includes a reference platform, a hollow box and an upper fixed plate; the bottom surface of the hollow box is evenly distributed with a plurality of air holes; the inner cavity of the hollow box is connected with a negative pressure connecting pipe; the hollow box is slidably connected with the upper fixed plate; a second positioning block is arranged on one side surface of the hollow box; the inner surface of the reference platform is a reference plane; a wedge-shaped surface is arranged between the reference plane and the top surface of the reference platform; and a first spring is connected between the hollow box and the upper fixed plate.

[0008] Furthermore, the reference platforms are arranged in pairs; the two reference platforms are arranged perpendicular to each other; a lower slide plate is arranged between the upper fixed plate and the hollow box body; the upper guide rail and the lower guide rail are fixed to the top surface of the lower slide plate and the bottom surface of the lower slide plate respectively; the lower slide block slidably connected to the lower guide rail is fixed to the top surface of the hollow box body; the first spring is connected between the hollow box body and the lower slide plate; the upper slide block slidably connected to the upper guide rail is fixed on the upper fixed plate; the second spring is connected between the upper fixed plate and the lower slide plate; the upper guide rail and the lower guide rail are arranged perpendicular to each other; a bracket is fixed to the lower sliding plate; and a first positioning block is arranged on the bracket.

[0009] Furthermore, the first positioning block and the second positioning block are both rollers.

[0010] After adopting the above structure, the beneficial effects of the utility model are as follows: the flexible circuit board fixture described in the utility model, when using the utility model, the upper fixed plate of the fixture is fixed on the lifting module of the manipulator; it moves to the top of the loading platform, and the lifting module starts to drive the upper fixed plate to descend. During the descent, the second positioning block first contacts the wedge surface, and the thrust of the wedge surface on the surface of the second positioning block pushes the hollow box to slide on the upper fixed plate; as the upper fixed plate and the hollow box continue to descend, the second positioning block is pressed against the reference plane by the first spring, and the distance between the hollow box and the reference plane is calibrated, so that the hollow box can be more accurately fitted to the specified position of the loading platform, so that the positioning of the circuit board on the hollow box is more accurate, and the negative pressure equipment generates negative pressure in the hollow box through the negative pressure connecting pipe. After the circuit board is adsorbed and fixed through the air hole, the lifting module drives the hollow box and the circuit board to rise, and the reference platform is reset after the positioning block leaves the loading platform. When placing the material on the inspection table, the lifting module descends, and similarly the hollow box is aligned with the inspection table through the second positioning block and the reference table; the circuit board on the hollow box is aligned with the inspection table, and then the negative pressure structure of the inspection table adsorbs and fixes the circuit board. In this fixture structure, the positioning of the circuit board can be made more accurate, and the accuracy of circuit board detection can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model when the reference platform is fixed on the loading platform;

[0012] Figure 2 This is a first-perspective stereogram of the part of the utility model connected to the manipulator;

[0013] Figure 3 It is a second perspective stereogram of the part of the utility model connected to the manipulator;

[0014] Description of reference numerals:

[0015] A. Loading platform; 1. Reference platform; 101. Reference surface; 102. Wedge surface; 2. Hollow box;

[0016] 201, air hole; 3, first spring; 4, lower slider; 5, lower guide rail; 6, lower slide plate; 7, bracket;

[0017] 8. Negative pressure connecting pipe; 9. Upper fixing plate; 10. Upper sliding block; 11. Upper guide rail; 12. Second spring;

[0018] 13. First positioning block; 14. Second positioning block. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] like Figures 1 to 3 As shown, a flexible circuit board fixture described in the utility model includes a reference platform 1, a hollow box body 2 and an upper fixed plate 9; the bottom surface of the hollow box body 2 is evenly distributed with a plurality of air holes 201; the inner cavity of the hollow box body 2 is connected with a negative pressure connecting pipe 8; the hollow box body 2 is slidably connected with the upper fixed plate 9; a second positioning block 14 is arranged on one side surface of the hollow box body 2; the inner surface of the reference platform 1 is a reference surface 101; a wedge-shaped surface 102 is arranged between the reference surface 101 and the top surface of the reference platform 1; a first spring 3 is connected between the hollow box body 2 and the upper fixed plate 9;

[0021] When in use, the manipulator consists of a translation module and a lifting module; the negative pressure connecting pipe 8 is connected to the negative pressure device, and a reference platform 1 is provided on the detection platform and the loading platform A;

[0022] The upper fixed plate 9 of the fixture is fixed on the lifting module of the manipulator; it moves to the top of the loading platform A, and the lifting module begins to drive the upper fixed plate 9 to descend. During the descent, the second positioning block 14 first contacts the wedge surface 102, and the thrust of the wedge surface 102 on the surface of the second positioning block 14 pushes the hollow box 2 to slide on the upper fixed plate 9; as the upper fixed plate 9 and the hollow box 2 continue to descend, the second positioning block 14 is pressed against the reference surface 101 by the first spring 3, and the distance between the hollow box 2 and the reference surface 101 is calibrated, so that the hollow box 2 can be more accurately fitted to the specified position of the loading platform A, so that the positioning of the circuit board on the hollow box 2 is more accurate, and the negative pressure device generates negative pressure in the hollow box 2 through the negative pressure connecting pipe 8. After the circuit board is adsorbed and fixed through the air hole 201, the lifting module drives the hollow box 2 and the circuit board to rise, and the reference platform 1 is reset after the positioning block 14 leaves the loading platform A. When placing the material on the inspection table, the lifting module descends, and similarly the hollow box 2 is aligned with the inspection table through the second positioning block 14 and the reference table 1, so that the circuit board on the hollow box 2 and the inspection table are aligned and positioned with each other, and then the negative pressure structure of the inspection table adsorbs and fixes the circuit board. In this fixture structure, the positioning of the circuit board can be made more accurate, and the accuracy of circuit board detection can be improved.

[0023] As a preferred embodiment of the utility model, the reference platforms 1 are arranged in pairs; the two reference platforms 1 are arranged perpendicular to each other; a lower slide plate 6 is arranged between the upper fixed plate 9 and the hollow box body 2; an upper guide rail 11 and a lower guide rail 5 are fixed to the top surface of the lower slide plate 6 and the bottom surface of the lower slide plate 6 respectively; a lower slide block 4 slidably connected to the lower guide rail 5 is fixed to the top surface of the hollow box body 2; the first spring 3 is connected between the hollow box body 2 and the lower slide plate 6; an upper slide block 10 slidably connected to the upper guide rail 11 is fixed on the upper fixed plate 9; a second spring 12 is connected between the upper fixed plate 9 and the lower slide plate 6; the upper guide rail 11 and the lower guide rail 5 are arranged perpendicular to each other; a bracket 7 is fixed to the lower slide plate 6; a first positioning block 13 is arranged on the bracket 7;

[0024] A pair of reference platforms 1 are provided on both the inspection platform and the loading platform A; when the hollow box body 2 descends, the two reference platforms 1 can respectively push the first positioning block 13 and the second positioning block 14 to move, thereby realizing the limiting of the hollow box body 2 in two directions on the plane, and enabling the hollow box body 2 to be adaptively positioned in two directions on the horizontal plane, thereby improving the accuracy of loading. The first spring 3 is used to reset the hollow box body 2 on the lower slide plate 6, and the second spring 12 is used to reset the lower slide plate 6 on the upper fixed plate 9.

[0025] As a preferred embodiment of the present invention, the first positioning block 13 and the second positioning block 14 are both rollers; the axes of the two rollers are arranged on the same horizontal plane; the first positioning block 13 and the second positioning block 14 both adopt a roller structure, which contacts the reference surface 101 and the wedge surface 102, making the sliding smoother.

[0026] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A flexible circuit board fixture, characterized in that: It comprises a reference platform (1), a hollow box (2) and an upper fixed plate (9); the bottom surface of the hollow box (2) is uniformly distributed with a plurality of air holes (201); the inner cavity of the hollow box (2) is connected with a negative pressure connecting pipe (8); the hollow box (2) is slidably connected with the upper fixed plate (9); a second positioning block (14) is provided on one side surface of the hollow box (2); the inner side surface of the reference platform (1) is a reference surface (101); a wedge-shaped surface (102) is provided between the reference surface (101) and the top surface of the reference platform (1); and a first spring (3) is connected between the hollow box (2) and the upper fixed plate (9).

2. A flexible circuit board fixture according to claim 1, characterized in that: The reference platforms (1) are arranged in pairs; the two reference platforms (1) are arranged perpendicular to each other; a lower slide plate (6) is arranged between the upper fixed plate (9) and the hollow box (2); an upper guide rail (11) and a lower guide rail (5) are fixed to the top surface of the lower slide plate (6) and the bottom surface of the lower slide plate (6) respectively; a lower slide block (4) slidably connected to the lower guide rail (5) is fixed to the top surface of the hollow box (2); the first spring (3) is connected between the hollow box (2) and the lower slide plate (6); an upper slide block (10) slidably connected to the upper guide rail (11) is fixed on the upper fixed plate (9); a second spring (12) is connected between the upper fixed plate (9) and the lower slide plate (6); the upper guide rail (11) and the lower guide rail (5) are arranged perpendicular to each other; a bracket (7) is fixed to the lower slide plate (6); and a first positioning block (13) is arranged on the bracket (7).

3. A flexible circuit board jig according to claim 2, characterized in that: The first positioning block (13) and the second positioning block (14) are both rollers.

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