PCB test fixture

Abstract

The utility model discloses a PCB test fixture, comprising an operation panel, the lower end of the operation panel is provided with a support frame, two sides of the support frame are fixedly provided with two straight-groove-shaped slide rails, two ends of the operation panel are provided with four pulleys, the four pulleys are slidably installed on the two straight-groove-shaped slide rails, and the two straight-groove-shaped slide rails are fixedly installed on the support frame. A connecting rod is fixedly connected to one side of the operation plate, a transmission block is fixedly installed at the upper end of the connecting rod, and a transmission mechanism is connected to one end of the transmission block. According to the utility model, by driving the four pulleys on the operation panel to move on the two straight-groove-shaped slide rails, one end of the operation panel can be tilted during continuous movement, so that the inclination angle of the PCB is adjusted, and convenience is brought to testing.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of fixtures, in particular to a PCB testing fixture. Background Art

[0002] PCB, whose Chinese name is printed circuit board, is also called printed circuit board. It is an important electronic component, a support for electronic components, and a carrier for electrical connections of electronic components. Before PCB is put into use, it needs to be tested.

[0003] In the inspection of PCB, a test fixture is needed to fix the PCB. The general test fixture can only fix the PCB in a specific position. When the PCB needs to be tilted for testing, the fixture cannot be adjusted to tilt the PCB, which brings great inconvenience to the operator. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a PCB testing fixture.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A PCB testing fixture comprises an operation panel, a support frame is provided at the lower end of the operation panel, two straight groove slide rails are fixedly installed on both sides of the support frame, four pulleys are provided at both ends of the operation panel, and the four pulleys are slidably installed on the two straight groove slide rails, a connecting rod is fixedly connected to one side of the operation panel, a transmission block is fixedly installed on the upper end of the connecting rod, and one end of the transmission block is connected to a transmission mechanism, and the transmission block is moved horizontally along the side of the support frame to pull the four pulleys at both ends of the operation panel to move on the two straight groove slide rails. During the continuous movement, one end of the operation panel can be tilted, thereby adjusting the inclination angle of the PCB.

[0007] As a further description of the above technical solution, the straight groove slide rail is composed of two semicircular slide rails and one elongated slide rail.

[0008] As a further description of the above technical solution, the transmission mechanism includes a support plate, a second sliding hole is opened on the support plate, a slider is slidably installed in the second sliding hole, a vertical second sliding groove is opened on one side of the slider, the transmission block is slidably installed in the second sliding groove, and a driving mechanism is provided at one end of the slider.

[0009] As a further description of the above technical solution, the driving mechanism includes a circular gear rotatably installed on one side of the slider, a long tooth rod is fixedly installed on one side of the support plate, the circular gear is meshed with the long tooth rod, two first sliding grooves are opened on the support plate, U-shaped support blocks are slidably installed on the two first sliding grooves, a motor is fixedly installed on the U-shaped support block, and the output end of the motor is fixedly connected to the center end of the circular gear.

[0010] As a further description of the above technical solution, the two first sliding grooves are arranged on both sides of the second sliding hole, and the upper and lower sides of the two first sliding grooves and the second sliding hole are inclined in the support plate.

[0011] As a further description of the above technical solution, two first sliding holes are provided on the operating panel, two fixed blocks are fixedly installed on both sides of the lower end of the operating panel, a bidirectional screw rod is rotatably installed between the two fixed blocks, two moving blocks are strung together at both ends of the bidirectional screw rod, the two moving blocks are slidably installed in the two first sliding holes, two splints are fixedly installed on the two moving blocks, two soft pads are fixedly installed on the sides of the two splints close to each other, and one end of the bidirectional screw rod passes through the outer surface of one of the fixed blocks and is fixedly connected to a knob.

[0012] As a further description of the above technical solution, the threads at both ends of the bidirectional screw are arranged in opposite directions, and the two clamping plates are symmetrically arranged along the left and right sides of the operating plate.

[0013] As a further description of the above technical solution, the lower end of the operating panel is located on both sides of the bidirectional screw rod and two fixed rods are fixedly installed respectively. Four round rods are fixedly connected to both ends of the two fixed rods, and the four pulleys are rotatably sleeved on the four round rods respectively.

[0014] As a further description of the above technical solution, four limit holes are opened on the surface of the operating panel, and four limit blocks are provided on both sides of the lower ends of the two clamps. The four limit blocks are symmetrically arranged front and back on both sides of the two clamps, and the four limit blocks are respectively slidably installed in the four limit holes.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, the operation panel is controlled to move on two straight groove slide rails, and is blocked at two rollers to two semicircular slide rails on the two straight groove slide rails. During the continuous movement, one end of the operation panel can be tilted, thereby changing the tilt angle of the PCB on the operation panel.

[0017] 2. In the present invention, by providing two soft pads, when the edge of the PCB is clamped and fixed, damage and abrasion to the edge of the PCB can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side view of the overall structure of the utility model;

[0020] Figure 3 It is a cross-sectional view of the support plate of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the bottom of the operating panel of the utility model.

[0022] Reference numerals: 10, operating panel; 101, first sliding hole; 102, limiting hole; 103, fixing rod; 104, round rod; 11, fixing block; 12, bidirectional screw rod; 13, moving block; 14, knob; 15, clamping plate; 151, limiting block; 16, soft pad; 17, pulley; 18, connecting rod; 19, transmission block;

[0023] 20. Support frame; 21. Straight groove slide rail;

[0024] 30. Support plate; 301. First slide groove; 302. Second slide hole; 31. Long tooth rod; 32. Circular gear; 33. Sliding block; 331. Second slide groove; 34. U-shaped support block; 35. Motor. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0026] Please refer to the attached Figure 1-4 As shown, the utility model provides a technical solution: a PCB test fixture, including an operation panel 10, a support frame 20 is provided at the lower end of the operation panel 10, two straight groove slide rails 21 are fixedly installed on both sides of the support frame 20, four pulleys 17 are provided at both ends of the operation panel 10, and the four pulleys 17 are slidably installed on the two straight groove slide rails 21, a connecting rod 18 is fixedly connected to one side of the operation panel 10, a transmission block 19 is fixedly installed on the upper end of the connecting rod 18, and one end of the transmission block 19 is connected to a transmission mechanism, by making the transmission block 19 move horizontally along the side of the support frame 20, the four pulleys 17 at both ends of the operation panel 10 are pulled to move on the two straight groove slide rails 21, and during the continuous movement, one end of the operation panel 10 can be tilted, thereby adjusting the inclination angle of the PCB.

[0027] In this embodiment, the straight groove slide rail 21 is composed of two semicircular slide rails and one elongated slide rail.

[0028] In this embodiment, the transmission mechanism includes a support plate 30, a second sliding hole 302 is opened on the support plate 30, a slider 33 is slidably installed in the second sliding hole 302, a vertical second sliding groove 331 is opened on one side of the slider 33, the transmission block 19 is slidably installed in the second sliding groove 331, and a driving mechanism is provided at one end of the slider 33.

[0029] In this embodiment, the driving mechanism includes a circular gear 32 rotatably mounted on one side of a slider 33, a long tooth rod 31 is fixedly mounted on one side of a support plate 30, the circular gear 32 meshes with the long tooth rod 31, two first slide grooves 301 are opened on the support plate 30, U-shaped support blocks 34 are slidably mounted on the two first slide grooves 301, a motor 35 is fixedly mounted on the U-shaped support block 34, and an output end of the motor 35 is fixedly connected to the center end of the circular gear 32. The circular gear 32 is driven by the motor 35 to move on the long tooth rod 31, and the transmission block 19 is pushed to slide in the second slide groove 331, thereby driving the operating panel 10 to move on the two straight groove slide rails 21.

[0030] In this embodiment, the two first slide grooves 301 are arranged on both sides of the second slide hole 302, and the upper and lower sides of the two first slide grooves 301 and the second slide hole 302 are inclined in the support plate 30, which can limit the U-shaped support block 34 and the slider 33 to prevent the U-shaped support block 34 and the slider 33 from sliding off.

[0031] In this embodiment, two first sliding holes 101 are provided on the operating panel 10, and two fixed blocks 11 are fixedly installed on both sides of the lower end of the operating panel 10, a bidirectional screw rod 12 is rotatably installed between the two fixed blocks 11, two moving blocks 13 are arranged in series at both ends of the bidirectional screw rod 12, and the two moving blocks 13 are slidably installed in the two first sliding holes 101, two splints 15 are fixedly installed on the two moving blocks 13, and two soft pads 16 are fixedly installed on the sides of the two splints 15 close to each other, and one end of the bidirectional screw rod 12 passes through the outer surface of one of the fixed blocks 11 and is fixedly connected to a knob 14.

[0032] In this embodiment, the threads at both ends of the bidirectional screw rod 12 are arranged in opposite directions, and the two clamping plates 15 are symmetrically arranged along the left and right sides of the operating plate 10 .

[0033] The two-way screw rod 12 is driven to rotate by manually rotating the knob 14 , so that the two clamping plates 15 on the two moving blocks 13 are moved closer to or farther from each other on the operation panel 10 , so as to fix and replace the PCB board on the operation panel 10 .

[0034] In this embodiment, two fixing rods 103 are fixedly installed on both sides of the bidirectional screw rod 12 at the lower end of the operating panel 10 , and four round rods 104 are fixedly connected to both ends of the two fixing rods 103 . Four pulleys 17 are rotatably sleeved on the four round rods 104 .

[0035] In this embodiment, four limit holes 102 are opened on the surface of the operating panel 10, and four limit blocks 151 are provided on both sides of the lower ends of the two clamping plates 15. The four limit blocks 151 are symmetrically arranged on both sides of the two clamping plates 15, and the four limit blocks 151 are respectively slidably installed in the four limit holes 102 to increase the stability of the two ends of the two clamping plates 15.

[0036] The specific operation process of the utility model is as follows:

[0037] When testing the PCB board, the PCB board is placed on the operation panel 10, and the two-way screw rod 12 is rotated by manually turning the knob 14. The two moving blocks 13 move on the two-way screw rod 12, driving the two clamping plates 15 to approach each other on the operation panel 10, so that the two soft pads 16 are close to the two side edges of the PCB board to clamp and fix the PCB board, so as to prevent the PCB board from moving during the test, resulting in inaccurate testing. When the tilt angle of the PCB board needs to be adjusted, the motor 3 on the U-shaped support block 34 is started. 5. The output end of the motor 35 drives the circular gear 32 to rotate on the long tooth rod 31, pushes the slider 33 to slide in the second slide hole 302, pulls the transmission block 19 to slide in the second slide groove 331, thereby pushing the four pulleys 17 at the lower end of the operation panel 10 to move on the two straight groove slide rails 21, and is blocked at the two semicircular slide rails on the two straight groove slide rails 21 from the two rollers. During the continuous movement, one end of the operation panel 10 can be tilted, changing the inclination angle of the PCB on the operation panel, bringing convenience to the operator.

[0038] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A PCB test fixture, comprising an operating panel (10), characterized in that: A support frame (20) is provided at the lower end of the operation panel (10), two straight groove slide rails (21) are fixedly installed on both sides of the support frame (20), four pulleys (17) are provided at both ends of the operation panel (10), and the four pulleys (17) are slidably installed on the two straight groove slide rails (21), one side of the operation panel (10) is fixedly connected with a connecting rod (18), and a transmission block (19) is fixedly installed on the upper end of the connecting rod (18), and one end of the transmission block (19) is connected to a transmission mechanism, and by making the transmission block (19) move horizontally along the side of the support frame (20), the four pulleys (17) at both ends of the operation panel (10) are pulled to move on the two straight groove slide rails (21), and during the continuous movement, one end of the operation panel (10) can be tilted, thereby adjusting the inclination angle of the PCB.

2. A PCB test fixture according to claim 1, characterized in that: The straight groove slide rail (21) consists of two semicircular slide rails and one elongated slide rail.

3. A PCB test fixture according to claim 1, characterized in that: The transmission mechanism comprises a support plate (30), a second sliding hole (302) is provided on the support plate (30), a sliding block (33) is slidably installed in the second sliding hole (302), a vertical second sliding groove (331) is provided on one side of the sliding block (33), the transmission block (19) is slidably installed in the second sliding groove (331), and a driving mechanism is provided at one end of the sliding block (33).

4. A PCB test fixture according to claim 3, characterized in that: The driving mechanism comprises a circular gear (32) rotatably mounted on one side of a slider (33); a long toothed rod (31) is fixedly mounted on one side of the support plate (30); the circular gear (32) meshes with the long toothed rod (31); two first sliding grooves (301) are provided on the support plate (30); U-shaped support blocks (34) are slidably mounted on the two first sliding grooves (301); a motor (35) is fixedly mounted on the U-shaped support block (34); and an output end of the motor (35) is fixedly connected to the center end of the circular gear (32).

5. A PCB test fixture according to claim 4, characterized in that: The two first slide grooves (301) are arranged on both sides of the second slide hole (302), and the upper and lower sides of the two first slide grooves (301) and the second slide hole (302) are arranged obliquely in the support plate (30).

6. A PCB test fixture according to claim 1, characterized in that: The operating panel (10) is provided with two first sliding holes (101), two fixed blocks (11) are fixedly installed on both sides of the lower end of the operating panel (10), a bidirectional screw rod (12) is rotatably installed between the two fixed blocks (11), two moving blocks (13) are arranged in series at both ends of the bidirectional screw rod (12), the two moving blocks (13) are slidably installed in the two first sliding holes (101), two clamping plates (15) are fixedly installed on the two moving blocks (13), two soft pads (16) are fixedly installed on the sides of the two clamping plates (15) close to each other, and one end of the bidirectional screw rod (12) passes through the outer surface of one of the fixed blocks (11) and is fixedly connected to a knob (14).

7. A PCB test fixture according to claim 6, characterized in that: The threads at both ends of the bidirectional screw rod (12) are arranged in opposite directions, and the two clamping plates (15) are arranged symmetrically along the left and right sides of the operating plate (10).

8. A PCB test fixture according to claim 6, characterized in that: The lower end of the operating plate (10) is located on both sides of the bidirectional screw rod (12) and is respectively fixedly mounted with two fixing rods (103); two ends of the two fixing rods (103) are fixedly connected with four round rods (104); and the four pulleys (17) are respectively rotatably sleeved on the four round rods (104).

9. A PCB test fixture according to claim 6, characterized in that: The surface of the operating panel (10) is provided with four limiting holes (102), and the lower ends of the two clamping plates (15) are provided with four limiting blocks (151). The four limiting blocks (151) are symmetrically arranged on both sides of the two clamping plates (15) in the front and back directions, and the four limiting blocks (151) are respectively slidably installed in the four limiting holes (102).

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