CN219997125U - Clamp for testing circuit board - Google Patents

Abstract

The utility model discloses a clamp for testing a circuit board, which comprises a base and a pedestal, wherein an upper testing mechanism is arranged on the lower side wall of the pedestal; the base is connected with the base through the lifting mechanism; the double-end output motor is embedded and installed in the base, a screw is installed at the output end of the double-end output motor, one end of a displacement rod is screwed outside the screw, slots are formed in two sides of the base, and the displacement rod is inserted into the slots; one end of a clamping arm is rotatably connected to two sides of the base, and the other end of the clamping arm is rotatably connected with a plate clamping mechanism; the inside of the arm lock of both sides has all seted up the spout, the other end rotation of displacement pole is connected with the slider, and slider sliding connection in the spout. Through setting up the displacement pole of being controlled the activity by bi-polar output motor for the arm lock that both sides realized the centre gripping effect can realize the adjustment of angle that opens and shuts along with bi-polar output motor's forward and backward rotation, thereby realizes the centre gripping effect to the circuit board of different diameters.

Description

Clamp for testing circuit board

Technical Field

The utility model relates to the technical field of circuit board detection, in particular to a clamp capable of completing double-layer circuit board detection.

Background

The circuit board test is used as a quality inspection process before product delivery, and is the most important part for ensuring the quality of the product. At present, most of the test work of circuit board products is to place the circuit board products on a test platform, and then detect single-layer circuits. Once the circuit board is in a double-layer structure, the circuit board needs to be turned over multiple times in the detection process, so that the detection efficiency is seriously affected.

Disclosure of Invention

The utility model aims to provide a clamp for testing a circuit board, which solves the problem that the existing clamp for testing the circuit board is difficult to simultaneously finish the simultaneous detection of double-layer circuit boards.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the clamp for testing the circuit board comprises a base and a base, wherein an upper testing mechanism is arranged on the lower side wall of the base; the base is connected with the base through the lifting mechanism;

the double-end output motor is embedded and installed in the base, a screw is installed at the output end of the double-end output motor, one end of a displacement rod is screwed outside the screw, slots are formed in two sides of the base, and the displacement rod is inserted into the slots;

one end of a clamping arm is rotatably connected to two sides of the base, and the other end of the clamping arm is rotatably connected with a plate clamping mechanism; the inside of the arm lock of both sides has all seted up the spout, the other end rotation of displacement pole is connected with the slider, and slider sliding connection in the spout.

Compared with the prior art, the utility model has the beneficial effects that:

through setting up the displacement pole by bi-polar output motor control activity to and rather than complex spout, slider structure for the arm lock that both sides realized the centre gripping effect can realize the adjustment of angle that opens and shuts along with bi-polar output motor's forward and reverse rotation, thereby realizes the centre gripping effect to the circuit board of different diameters.

And through the setting of two push rod motors, be convenient for carry out the accurate adjustment of height for lower testboard and last testboard can be respectively to the circuit board realization detection of different thickness and volume, thereby have guaranteed the accuracy nature of testing process.

Drawings

Fig. 1 is a schematic structural diagram of a fixture for testing a circuit board according to the present utility model.

Fig. 2 is a schematic view of a plate clamping mechanism according to another embodiment of the present utility model.

1. A base; 2. a push rod motor; 3. a lower test bench; 4. a base; 5. a second push rod motor; 6. a test bench mounting platform is arranged; 7. a test bench is arranged; 8. a double-ended output motor; 9. a screw; 10. a displacement rod; 11. a clamp arm; 12. a chute; 13. a slide block; 14. a directional rod; 15. a first C-shaped frame; 16. a second C-shaped frame; 17. positioning a nut; 18. screw holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, the present utility model provides a technical solution: the utility model provides a fixture for circuit board test, includes base 1 and base 4, the lower lateral wall of base 4 is equipped with testing mechanism, the mounting groove has been seted up to the lower lateral wall of base 4, be equipped with test bench mounting platform 6 in the mounting groove, and go up test bench mounting platform 6 and install in the mounting groove through second push rod motor 5. The second push rod motor 5 is arranged so that the height of the upper test bench mounting platform 6 can be adjusted according to specific needs.

The base 1 is connected with the base 4 through a lifting mechanism, the lifting mechanism is a push rod motor 2, the push rod motor 2 is symmetrically arranged on two sides of the base 1, connecting rods are arranged on two sides of the base 4, and output ends of the push rod motor 2 are arranged on the connecting rods. Therefore, the overall height of the base 4 can be adjusted, and the detection work of the circuit board to be tested is completed by matching with the lower test mechanism arranged on the base 1.

The double-end output motor 8 is embedded and installed in the base 4, the screw rod 9 is installed at the output end of the double-end output motor 8, and the screw thread directions of the screw rods 9 at the two sides are opposite. The screw rod 9 is externally connected with one end of a displacement rod 10 in a threaded manner, slots are formed in two sides of the base 4, and the displacement rod 10 is inserted into the slots. The cross section of slot and displacement pole 10 is square, opens through bi-polar output motor 8 and drives screw rod 9 and rotate to and the spacing effect of slot to displacement pole 10, thereby make with its screw-thread fit's displacement pole 10 can realize reverse displacement.

The two sides of the base 4 are rotatably connected with one end of a clamping arm 11, and the other end of the clamping arm 11 is rotatably connected with a plate body clamping mechanism. The clamping arm 11 is provided with an inward bending angle, and the bending angle enables the clamping arm 11 to better exert force and clamp a circuit board to be tested. The inner sides of the clamping arms 11 at both sides are provided with sliding grooves 12, the other end of the displacement rod 10 is rotatably connected with a sliding block 13, and the sliding block 13 is slidably connected with the sliding grooves 12; an orientation rod 14 is arranged in the chute 12, and the sliding block 13 is slidably connected to the orientation rod 14. Through the opposite or reverse displacement of the displacement rods 10 at the two sides and the movement of the sliding block 13 in the sliding groove 12, the clamping arms 11 at the two sides can be simultaneously opened and closed for a certain angle, and the clamping of circuit boards with different areas can be completed by matching with the board body clamping mechanism.

The plate body fixture is a first C-shaped frame 15, and a clamping cushion block is arranged in the first C-shaped frame 15. The clamping cushion block is made of a soft material, a notch is formed in the center of the clamping cushion block, and two sides of the circuit board are placed in the notch, so that stable clamping and fixing are achieved.

An upper test bench 7 is mounted on the lower side wall of the upper test bench mounting platform 6, and an upper probe is mounted on the upper test bench 7. The base 1 is provided with a lower test bench 3, and the lower test bench 3 is provided with a lower probe. Through testboard and the probe structure that upper and lower both sides set up, realize the test to double-deck circuit board to through the cooperation of high adjustment mechanism, make the circuit board of different thickness all can obtain accurate test.

Working principle: when the double-end output motor 8 is started in use, the displacement rods 10 on two sides realize opposite or reverse displacement, and thus the distance between the ends of the clamping arms 11 is changed, so that the double-end output motor corresponds to circuit boards with different diameters and volumes.

The two sides of the circuit board are placed at the notch of the clamping cushion block in the first C-shaped frame 15, so that the clamping of the circuit board is completed. And then, starting the second push rod motor 5 and the push rod motor 2, so that the probes of the upper test table 7 and the lower test table 3 are inserted and connected with the test of the circuit board to be tested, and the detection of the circuit board is completed through the discharge test.

Referring to fig. 2, the present utility model further provides another technical solution, which is different from the above technical solution: the plate body fixture is a second C-shaped frame 16, a positioning nut 17 is installed in one end side wall of the second C-shaped frame 16, a screw hole 18 is formed in the other end side wall of the second C-shaped frame 16, and the screw hole 18 is identical to the inner diameter of the positioning nut 17.

Because the two sides of part of the circuit board are provided with the mounting holes for fixing, in order to achieve better fixing effect, the mounting holes can be inserted into the positioning nuts 17, and the screws in the screw holes 18 are rotated to be screwed into the positioning nuts 17, so that the clamping and fixing effect on the circuit board to be tested can be achieved.

Claims (5)

1. The utility model provides a anchor clamps for circuit board test which characterized in that: the testing device comprises a base (1) and a base (4), wherein an upper testing mechanism is arranged on the lower side wall of the base (4); the base (1) is connected with the base (4) through a lifting mechanism;

the double-end output motor (8) is embedded and installed in the base (4), a screw rod (9) is installed at the output end of the double-end output motor (8), one end of a displacement rod (10) is connected to the outside of the screw rod (9) in a screwed mode, slots are formed in two sides of the base (4), and the displacement rod (10) is inserted into the slots;

one end of a clamping arm (11) is rotatably connected to two sides of the base (4), and the other end of the clamping arm (11) is rotatably connected with a plate body clamping mechanism; the inner sides of the clamping arms (11) at both sides are provided with sliding grooves (12), the other end of the displacement rod (10) is rotationally connected with a sliding block (13), and the sliding block (13) is slidably connected with the sliding grooves (12);

the lifting mechanism is a push rod motor (2), the push rod motors (2) are symmetrically arranged on two sides of the base (1), connecting rods are arranged on two sides of the base (4), and output ends of the push rod motors (2) are arranged on the connecting rods;

the upper test mechanism comprises an upper test table (7), a mounting groove is formed in the lower side wall of the base (4), an upper test table mounting platform (6) is arranged in the mounting groove, the upper test table mounting platform (6) is mounted in the mounting groove through a second push rod motor (5), an upper test table (7) is mounted on the lower side wall of the upper test table mounting platform (6), and an upper probe is mounted on the upper test table (7);

the base (1) is provided with a lower test bench (3), and the lower test bench (3) is provided with a lower probe.

2. The jig for testing a circuit board according to claim 1, wherein: an orientation rod (14) is arranged in the chute (12), and the sliding block (13) is connected with the orientation rod (14) in a sliding way.

3. The jig for testing a circuit board according to claim 1, wherein: the plate body fixture is a first C-shaped frame (15), and a clamping cushion block is arranged in the first C-shaped frame (15).

4. The jig for testing a circuit board according to claim 1, wherein: the plate body fixture is second C shape frame (16), install locating nut (17) in the one end lateral wall of second C shape frame (16), screw (18) have been seted up to the other end lateral wall of second C shape frame (16), and screw (18) are the same with the internal diameter of locating nut (17).

5. The jig for testing a circuit board according to claim 1, wherein: the clamping arm (11) is provided with an inward bending angle.