Circuit board test fixture

Abstract

The utility model discloses a circuit board test fixture which comprises a base, a plurality of damping supporting pads are installed at the bottom end of the base, two supporting plates are installed at the top of the base, a second guide rod is installed between the two supporting plates, and two end clamping jaws are adjustably installed on the second guide rod. A first installation block and a second installation block are installed at the top end of the base, a first guide rod is installed between the first installation block and the second installation block, a check block and a movable clamping assembly are installed on the first guide rod in a sliding mode, a spring is arranged between the check block and the movable clamping assembly, and a first fastening rotary knob is installed on the check block. The movable clamping assembly comprises a sliding rod, a plurality of clamping plates are installed on the top of the sliding rod, and first clamping grooves are formed in the clamping plates. According to the utility model, the circuit board with large specification and size changes can be clamped; the device is convenient to adjust, short in consumed time, few in parts and low in production and manufacturing cost.

Description

Technical Field

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

[0002] During the processing and testing of circuit boards, fixtures are needed to clamp and fix the circuit boards.

[0003] The existing publication number CN218099286U discloses a circuit board testing fixture, wherein a slide groove is provided on the upper surface of the base, a screw rod is provided in the slide groove, a slider is provided on the screw rod, a support plate is fixed on the upper surface of the slider, the lower end of the column is fixed on the upper surface of the support plate, a T-slot is provided on the surface of the column, a T-block is movably provided inside the T-slot, an inner side of the T-block is connected to a U-frame, a piston rod is provided on the upper surface of the U-frame, a movable splint is connected to the lower end of the piston rod, a return spring is sleeved on the outer side of the piston rod, which is convenient for squeezing the movable splint downward to cooperate with the U-frame to clamp the circuit board, the movable cooperation between the T-block and the T-slot is convenient for adjusting the height of the clamped circuit board, the two sliders are adjusted to be close to or away from each other by the screw rod, and then the spacing between the columns on both sides is adjusted to adapt to the clamping of circuit boards of different sizes.

[0004] Although the existing technology can clamp circuit boards of different sizes, it uses a screw rod adjustment drive. First, the rotation is troublesome and time-consuming; second, the fixture has too many parts, resulting in high manufacturing costs. Therefore, we propose a circuit board test fixture. Utility Model Content

[0005] The utility model aims to provide a circuit board testing fixture to solve the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit board test fixture, comprising a base, a plurality of shock-absorbing support pads are installed at the bottom end of the base, two support plates are installed at the top of the base, a second guide rod is installed between the two support plates, and two end clamps are adjustably installed on the second guide rod; a first mounting block and a second mounting block are installed at the top of the base, a first guide rod is installed between the first mounting block and the second mounting block, a stopper and a movable clamping assembly are slidably installed on the first guide rod, a spring is arranged between the stopper and the movable clamping assembly, and a first tightening knob is installed on the stopper; the movable clamping assembly comprises a sliding rod, a plurality of clamping plates are installed on the top of the sliding rod, and the clamping plate is provided with a first card slot.

[0007] Preferably, the cross section of the first guide rod is a rectangular structure, and the sliding rod is provided with a first guide hole matched with the first guide rod.

[0008] Preferably, the end clamp comprises a clamp body, the clamp body is provided with a second guide hole matched with a second guide rod, a second tightening knob is installed at the lower part of the clamp body, and a second slot is provided at the upper part of the clamp body.

[0009] Preferably, rubber pads are attached to both the first card slot and the second card slot.

[0010] Preferably, the shock-absorbing support pad comprises a rubber pad and a metal spring sheet, a bolt hole is opened in the middle of the rubber pad, and the metal spring sheet is installed in the rubber pad.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] A stopper and a movable clamping assembly are slidably mounted on the first guide rod, and a spring 6 is arranged between the stopper and the movable clamping assembly. The circuit board only needs to be placed between the second clamping slot of the end clamping jaw and the first clamping slot of the clamping plate, and the circuit board can be clamped by the elastic force of the spring; when the size of the test circuit board changes greatly, the distance between the two end clamping jaws can be adjusted, and the position of the stopper relative to the second mounting block can be adjusted to achieve clamping of circuit boards with large size changes; the present application is easy to adjust, short in time, with fewer parts and components, and low production and manufacturing costs.

[0013] Rubber pads are attached to the first card slot and the second card slot, and the rubber pads play a role in protecting the edges of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the shock-absorbing support pad of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the movable clamping assembly of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the end clamping jaws of the utility model.

[0019] In the figure: 1, base; 2, stopper; 3, shock-absorbing support pad; 4, first mounting block; 5, first tightening knob; 6, spring; 7, movable clamping assembly; 8, first guide rod; 9, end clamping jaw; 10, second mounting block; 11, second guide rod; 12, support plate; 301, rubber pad; 302, metal spring; 303, bolt hole; 701, sliding rod; 702, first guide hole; 703, clamping plate; 704, first slot; 901, clamping jaw body; 902, second guide hole; 903, second slot; 904, second tightening knob. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0021] See also Figure 1-4 In an embodiment of the utility model, a circuit board test fixture comprises a base 1, a plurality of shock-absorbing support pads 3 are installed at the bottom of the base 1, two support plates 12 are installed at the top of the base 1, a second guide rod 11 is installed between the two support plates 12, and two end clamps 9 are adjustably installed on the second guide rod 11;

[0022] A first mounting block 4 and a second mounting block 10 are installed at the top of the base 1, a first guide rod 8 is installed between the first mounting block 4 and the second mounting block 10, a stopper 2 and a movable clamping assembly 7 are slidably installed on the first guide rod 8, a spring 6 is arranged between the stopper 2 and the movable clamping assembly 7, a stopper 2 and a movable clamping assembly 7 are slidably installed on the first guide rod 8, a spring 6 is arranged between the stopper 2 and the movable clamping assembly 7, and the circuit board can be clamped by the elastic force of the spring 6 by simply placing the circuit board between the second card slot of the end clamping jaw and the first card slot 704 of the clamping plate 703; the stopper 2 is installed with a first fastening knob 5 for fixing the stopper 2; when the size of the test circuit board changes greatly, the distance between the two end clamping jaws 9 can be adjusted, and the position of the stopper 2 relative to the second mounting block 10 can be adjusted, so as to achieve the clamping of the circuit board with large size changes in specifications;

[0023] The movable clamping assembly 7 includes a sliding rod 701, and a plurality of clamping plates 703 are installed on the top of the sliding rod 701 to achieve stable clamping of the circuit board; the clamping plate 703 is provided with a first card slot 704; the cross-section of the first guide rod 8 is a rectangular structure, and the sliding rod 701 is provided with a first guide hole 702 that cooperates with the first guide rod 8.

[0024] The end clamp 9 includes a clamp body 901, the clamp body 901 is provided with a second guide hole 902 that cooperates with the second guide rod 11, a second tightening knob 904 is installed at the lower part of the clamp body 901, and a second slot 903 is provided at the upper part of the clamp body 901; rubber pads are pasted at the first slot 704 and the second slot 903, and the rubber pads play a role in protecting the edges of the circuit board.

[0025] The shock-absorbing support pad 3 includes a rubber pad 301 and a metal spring 302. A bolt hole 303 is opened in the middle of the rubber pad 301, and the metal spring 302 is installed in the rubber pad 301. The arrangement of the rubber pad 301 and the metal spring 302 improves the buffering and shock-absorbing performance of the fixture.

[0026] The working principle of the utility model is as follows: a stopper 2 and a movable clamping assembly 7 are slidably mounted on the first guide rod 8, a spring 6 is arranged between the stopper 2 and the movable clamping assembly 7, and the circuit board can be clamped by the elastic force of the spring 6 by simply placing the circuit board between the second clamping groove of the end clamping jaw and the first clamping groove 704 of the clamping plate 703;

[0027] When the size of the test circuit board varies greatly, the distance between the two end clamping jaws 9 can be adjusted, and the position of the stop block 2 relative to the second mounting block 10 can be adjusted to clamp the circuit board with greatly varying specifications and sizes.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A circuit board test fixture, comprising a base (1), characterized in that: A plurality of shock-absorbing support pads (3) are installed at the bottom end of the base (1), two support plates (12) are installed at the top of the base (1), a second guide rod (11) is installed between the two support plates (12), and two end clamps (9) are adjustably installed on the second guide rod (11); A first mounting block (4) and a second mounting block (10) are mounted on the top of the base (1); a first guide rod (8) is mounted between the first mounting block (4) and the second mounting block (10); a stopper (2) and a movable clamping assembly (7) are slidably mounted on the first guide rod (8); a spring (6) is arranged between the stopper (2) and the movable clamping assembly (7); and a first tightening knob (5) is mounted on the stopper (2); The movable clamping assembly (7) comprises a sliding rod (701), a plurality of clamping plates (703) are mounted on the top of the sliding rod (701), and the clamping plates (703) are provided with a first clamping slot (704).

2. A circuit board test fixture according to claim 1, characterized in that: The cross section of the first guide rod (8) is a rectangular structure, and the sliding rod (701) is provided with a first guide hole (702) that matches the first guide rod (8).

3. A circuit board test fixture according to claim 1, characterized in that: The end clamp (9) comprises a clamp body (901), the clamp body (901) is provided with a second guide hole (902) cooperating with a second guide rod (11), a second tightening knob (904) is installed at the lower part of the clamp body (901), and a second clamping groove (903) is provided at the upper part of the clamp body (901).

4. A circuit board test fixture according to claim 3, characterized in that: Rubber pads are adhered to the first card slot (704) and the second card slot (903).

5. A circuit board test fixture according to claim 1, characterized in that: The shock-absorbing support pad (3) comprises a rubber pad (301) and a metal spring (302); a bolt hole (303) is provided in the middle of the rubber pad (301), and the metal spring (302) is installed in the rubber pad (301).

Images