Flexible circuit board testing mechanism

Abstract

The utility model discloses a flexible circuit board testing mechanism, which comprises a base, a cylinder seat, two support columns, a first carrier plate, a second carrier plate, a connecting rod, a bearing seat, a rotating shaft, a movable clamping plate, a rack, a first telescopic cylinder, a push plate, a linear slide rail and a second telescopic cylinder, a cylinder body of the first telescopic air cylinder is fixedly installed on the air cylinder base. According to the mechanism, the piston of the first telescopic cylinder is controlled to stretch out and draw back, the corresponding positions of the flexible circuit board fixed on the combination body of the first carrier plate, the second carrier plate and the connecting rod and the fixed clamping plate and the movable clamping plate are automatically adjusted, and the bending test is carried out on the area, located in the clamping groove, of the flexible circuit board in a gear and rack transmission mode. Fixed-area testing of the flexible circuit board is achieved, the purpose of fixed-point testing is achieved, and the accuracy of a testing result is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board testing, in particular to a flexible circuit board testing mechanism. Background Art

[0002] Flexible circuit boards, referred to as FPCs, need to be tested for their bending life for frequently rotating flexible circuit boards. The existing bending test method for flexible circuit boards is to rotate the terminals at both ends relative to each other, and the bending stress is mainly concentrated in the middle of the flexible circuit board. However, in actual use, the bending stress area of ​​some flexible circuit boards is not in the middle, so the test results of the existing test method are not accurate. Summary of the invention

[0003] The technical problem to be solved by the utility model is to improve a mechanism capable of performing reciprocating bending test on any position of a flexible circuit board.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: a flexible circuit board testing mechanism, including a base, a cylinder seat, a support column, a first carrier plate, a second carrier plate, a connecting rod, a bearing seat, a rotating shaft, a movable splint, a rack, a first telescopic cylinder, a push plate, a linear slide rail and a second telescopic cylinder, two support columns are symmetrically and fixedly installed on the base, the cylinder seat is fixedly installed on the top of the base, the cylinder body of the first telescopic cylinder is fixedly installed on the cylinder seat, the first carrier plate and the second carrier plate are both slidably installed on the support column, the first carrier plate and the second carrier plate are fixedly connected by a connecting rod, the piston rod of the first telescopic cylinder is fixedly connected to the first carrier plate, two bearing seats are symmetrically and fixedly installed on the support columns on both sides, ball bearings are fixedly installed in the bearing seat, and both ends of the rotating shaft are fixedly installed The gear train is connected with the gear train by the spring which is connected with the gear train to form a gearbox and a gearbox for connecting the gear to the drive gear of the drive gear.

[0005] Preferably, the lower portion of the connecting rod is fixedly mounted on the second carrier plate, the upper portion of the connecting rod is provided with an external thread, and the upper portion of the connecting rod is fixedly mounted on the first carrier plate by clamping with two lock nuts.

[0006] Preferably, a first guide sleeve is fixedly mounted on the base and the first carrier plate, and the rack is slidably mounted in the first guide sleeve.

[0007] Preferably, a second guide sleeve is fixedly mounted on both the first carrier plate and the second carrier plate, and the support column is slidably mounted in the second guide sleeve.

[0008] Compared with the prior art, the utility model has the following advantages: the mechanism automatically adjusts the corresponding positions of the flexible circuit board fixed on the combination of the first carrier plate, the second carrier plate and the connecting rod and the fixed clamping plate and the movable clamping plate by controlling the extension and retraction of the piston of the first telescopic cylinder, and performs a bending test on the area of ​​the flexible circuit board located in the clamping groove by gear rack transmission, thereby realizing fixed-area testing of the flexible circuit board, achieving the purpose of fixed-point testing, and improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below in conjunction with the accompanying drawings.

[0010] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0011] The utility model is described in detail below in conjunction with specific implementation methods:

[0012] like Figure 1A flexible circuit board testing mechanism shown in the figure includes a base 1, a cylinder seat 11, a support column 2, a first carrier plate 31, a second carrier plate 32, a connecting rod 33, a bearing seat 4, a rotating shaft 41, a movable splint 42, a rack 5, a first telescopic cylinder 6, a push plate 7, a linear slide rail 71 and a second telescopic cylinder 8. The two support columns 2 are symmetrically and fixedly installed on the base 1. The cylinder seat 11 is fixedly installed on the top of the base 1. The cylinder body of the first telescopic cylinder 6 is fixedly installed on the cylinder seat 11. The first carrier plate 31 and the second carrier plate 32 are both slidably installed on the support column 2. The first carrier plate 31 and the second carrier plate 32 are fixedly connected by a connecting rod 33. The piston rod of the first telescopic cylinder 6 is fixedly connected to the first carrier plate 31. The two bearing seats 4 are symmetrically and fixedly installed on the support columns 2 on both sides. A ball bearing is fixedly installed in the bearing seat 4. Both ends of the rotating shaft 41 are fixedly installed on the rotating body of the ball shaft. A fixed splint is fixedly installed on the rotating shaft 41, the left end of the movable splint 42 is hingedly installed on the fixed splint, and the right end of the movable splint 42 can be screwed on the fixed splint, and a clamping groove for the flexible circuit board 9 to slide through is formed between the movable splint 42 and the fixed splint, and two linear slide rails 71 are vertically fixedly installed in the base 1, the cylinder body of the second telescopic cylinder 8 is fixedly installed on the base 1, the push plate 7 is slidably installed on the linear slide rail 71, the piston rod of the second telescopic cylinder 8 is fixedly connected to the push plate 7, the lower part of the rack 5 is fixedly installed on the push plate 7, and the upper part of the rack 5 slides through the first carrier plate 31 and the second carrier plate 32, a gear matching with the rack 5 is fixedly sleeved on the rotating shaft 41, and the rack 5 is meshed with the gear for transmission connection, and the first carrier plate 31 and the second carrier plate 32 are respectively fixedly installed with the first terminal 43 and the second terminal 44.

[0013] The lower part of the connecting rod 33 is fixedly mounted on the second carrier plate 32, and the upper part of the connecting rod 33 is provided with an external thread. The upper part of the connecting rod 33 is clamped and fixedly mounted on the first carrier plate 31 by two lock nuts. After loosening the upper part of the connecting rod 33 through the two lock nuts, the relative installation heights of the first carrier plate 31 and the second carrier plate 32 can be adjusted to meet the use requirements of testing and clamping flexible circuit boards 9 of different lengths.

[0014] The base 1 and the first carrier plate 31 are both fixedly mounted with a first guide sleeve 51 , and the rack 5 is slidably mounted in the first guide sleeve 51 . The guiding effect of the first guide sleeve 51 can improve the straightness of the rack 5 when it moves up and down.

[0015] The first carrier plate 31 and the second carrier plate 32 are both fixedly mounted with a second guide sleeve 35, and the support column 2 is slidably mounted in the second guide sleeve 35. The guiding effect of the second guide sleeve 35 can improve the straightness of the first carrier plate 31 and the second carrier plate 32 when they move up and down along the support column 2.

[0016] The two ends of the flexible circuit board 9 are plugged into the first wiring terminal 43 and the second wiring terminal 44. The first wiring terminal 43 and the second wiring terminal 44 are circuit-connected to the simulation test component. When a problem occurs in the test process of the flexible circuit board 9, data feedback is performed through the simulation test component. The movable clamping plate 42 is opened to place the flexible circuit board 9 in the clamping groove and then the movable clamping plate 42 is fixed. The first telescopic cylinder 6 is started to drive the combination of the first carrier plate 31, the second carrier plate 32, and the connecting rod 33 to move up and down, and the relative position of the flexible circuit board 9 and the clamping groove is adjusted, that is, the bending test position of the flexible circuit board 9 is adjusted. After the adjustment is completed, the first telescopic cylinder 6 maintains this state, and the stroke of the second telescopic cylinder 8 is started to reciprocate and retract according to the preset value, synchronously driving the push plate 7 and the rack 5 to reciprocate up and down, and the rack 5 synchronously drives the combination of the gear, the rotating shaft 41, the fixed clamping plate, and the movable clamping plate 42 to rotate back and forth, and the reciprocating bending test is performed on the test area of ​​the flexible circuit board 9 through the clamping groove formed between the fixed clamping plate and the movable clamping plate 42.

Claims

1. A flexible circuit board testing mechanism, characterized in that: The invention comprises a base (1), a cylinder seat (11), a support column (2), a first carrier plate (31), a second carrier plate (32), a connecting rod (33), a bearing seat (4), a rotating shaft (41), a movable clamping plate (42), a rack (5), a first telescopic cylinder (6), a push plate (7), a linear guide rail (71) and a second telescopic cylinder (8), wherein the two support columns (2) are symmetrically and fixedly mounted on the base (1), the cylinder seat (11) is fixedly mounted on the top of the base (1), and the cylinder body of the first telescopic cylinder (6) is fixedly mounted on the top of the base (1). The first carrier plate (31) and the second carrier plate (32) are both slidably mounted on the support column (2). The first carrier plate (31) and the second carrier plate (32) are fixedly connected via a connecting rod (33). The piston rod of the first telescopic cylinder (6) is fixedly connected to the first carrier plate (31). Two bearing seats (4) are symmetrically and fixedly mounted on the support columns (2) on both sides. Ball bearings are fixedly mounted in the bearing seats (4). Both ends of the rotating shaft (41) are fixedly mounted in the rotating body of the ball shaft. A fixed clamping plate is fixedly mounted on the rotating shaft (41), the left end of the movable clamping plate (42) is hingedly mounted on the fixed clamping plate, the right end of the movable clamping plate (42) can be screwed and mounted on the fixed clamping plate, a clamping groove for the flexible circuit board (9) to slide through is formed between the movable clamping plate (42) and the fixed clamping plate, two linear slide rails (71) are vertically fixedly mounted in the base (1), the cylinder body of the second telescopic cylinder (8) is fixedly mounted on the base (1), and the push plate (7) is slidably mounted on the linear slide rail (71) The piston rod of the second telescopic cylinder (8) is fixedly connected to the push plate (7), the lower part of the rack (5) is fixedly mounted on the push plate (7), the upper part of the rack (5) slides through the first carrier plate (31) and the second carrier plate (32), a gear matching the rack (5) is fixedly sleeved and mounted on the rotating shaft (41), the rack (5) is meshingly connected to the gear, and a first wiring terminal (43) and a second wiring terminal (44) are fixedly mounted on the first carrier plate (31) and the second carrier plate (32), respectively.

2. The flexible circuit board testing mechanism according to claim 1, characterized in that: The lower portion of the connecting rod (33) is fixedly mounted on the second carrier plate (32), the upper portion of the connecting rod (33) is provided with an external thread, and the upper portion of the connecting rod (33) is fixedly mounted on the first carrier plate (31) by clamping with two lock nuts.

3. The flexible circuit board testing mechanism according to claim 1, characterized in that: A first guide sleeve (51) is fixedly mounted on the base (1) and the first carrier plate (31), and the rack (5) is slidably mounted in the first guide sleeve (51).

4. The flexible circuit board testing mechanism according to claim 1, characterized in that: A second guide sleeve (35) is fixedly mounted on both the first carrier plate (31) and the second carrier plate (32), and the support column (2) is slidably mounted in the second guide sleeve (35).

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