Clamping assembly for PCBA board test

Abstract

The utility model discloses a clamping assembly for PCBA board testing, and relates to the technical field of clamping assemblies. The device comprises a bottom frame and a base plate, an annular groove and a plurality of sliding grooves are formed in the base plate, fixing assemblies are arranged in the sliding grooves, and a reset assembly is fixedly connected to the bottom of the base plate; the fixing assembly comprises a fixing plate, a clamping piston barrel is fixedly connected into the fixing plate, a mounting base is fixedly connected to the movable end of the clamping piston barrel, a clamping plate is fixedly connected to the end, away from the movable end of the clamping piston barrel, of the mounting base, and a pushing spring is fixedly connected between the mounting base and the fixing plate. The reset assembly comprises a ring pipe, the bottom of the base plate is fixedly connected with an air exhaust cylinder and an electric push rod, and a connecting pipe is communicated between the input end of the air exhaust cylinder and the ring pipe. According to the PCBA clamping device, all the installation bases are pushed by all the pushing springs to move towards the center of the base plate along the corresponding sliding grooves, so that all the rubber pads can clamp PCBA in all directions, and PCBA of different shapes can be clamped.

Description

TECHNICAL FIELD

[0001] The utility model belongs to clamping assembly technical field, especially, relate to a kind of clamping assembly for PCBA board test. BACKGROUND

[0002] PCBA board needs to be detected after completing assembly Electrical conductivity and based on input-output numerical value, to verify whether actual PCBA board meets design requirement, in PCBA test process, clamping assembly, i.e. PCBA test fixture (also called "test rack") is used, it is a kind of auxiliary equipment, facilitate the product to be measured on measuring instrument fixed and accurate repeat positioning, improve test efficiency, such as existing public document CN222070771U-a kind of PCBA test fixture.

[0003] The currently disclosed PCBA test fixture can fix and clamp rectangular PCBA, but for the test of other shapes such as circular, trapezoidal and the like, the existing PCBA test fixture cannot provide stable clamping.

[0004] Therefore, we provide a clamping assembly for PCBA board test to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a clamping assembly for PCBA board test, by each push spring pushing each mounting seat along the corresponding sliding groove to the center of the base plate, so that each rubber pad can clamp PCBA from each direction, solving the problem that the existing clamping assembly for PCBA board test cannot stably clamp PCBA of different shapes.

[0006] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a clamping assembly for PCBA board test, comprising a chassis and a base plate; the base plate is fixedly connected to the top of the chassis, and a ring groove and a plurality of sliding grooves are formed in the inside of the base plate; a fixing assembly is arranged in the inside of each sliding groove; a reset assembly is fixedly connected to the bottom of the base plate;

[0008] The fixing assembly comprises a fixing plate, which is fixedly connected to the inside of the sliding groove; a clamping piston cylinder is fixedly connected to the inside of the fixing plate; a mounting seat is fixedly connected to the movable end of the clamping piston cylinder; a clamping plate is fixedly connected to one end of the mounting seat away from the movable end of the clamping piston cylinder; and a push spring is fixedly connected between the mounting seat and the fixing plate.

[0009] The reset assembly comprises a ring pipe fixedly connected to the inside of the ring groove, and a plurality of clamping piston cylinders are in communication with the ring groove, the bottom of the base plate is fixedly connected with an air extraction cylinder and an electric push rod, a connecting pipe is in communication between the input end of the air extraction cylinder and the ring pipe, the output end of the electric push rod is fixedly connected with a connecting plate, and the connecting plate is fixedly connected to the movable end of the air extraction cylinder.

[0010] The plurality of sliding grooves are distributed radially around the center of the base plate, and the ring groove and the plurality of sliding grooves are in communication.

[0011] The one side of the mounting seat facing the fixed plate is fixedly connected with two sliding rods, the two sliding rods are movably sleeved in the inside of the fixed plate, and the clamping piston cylinder is located between the two sliding rods.

[0012] The number of the push springs is two, and the two push springs are movably sleeved outside the two sliding rods.

[0013] The one side of the clamping plate away from the fixed plate is fixedly connected with a rubber pad, and the one side of the rubber pad away from the clamping plate is provided with a triangular opening.

[0014] The inside of the base plate is fixedly connected with an air outlet pipe, and the free end of the air outlet pipe is fixedly connected with an exhaust valve.

[0015] The top of the base plate is fixedly connected with a cover plate, the inside of the cover plate is provided with a plurality of sliding groove openings, and the plurality of clamping plates are movably connected in the corresponding sliding groove openings.

[0016] The base plate is fixedly connected with an air outlet pipe, and the free end of the air outlet pipe is fixedly connected with an exhaust valve.

[0017] 1、The push springs push the mounting seats to move along the corresponding sliding grooves to the center of the base plate, so that the rubber pads can clamp the PCBA from all directions, then the exhaust valve is closed to fix the state of the clamping piston cylinders, and different shapes of PCBA can be clamped.

[0018] 2、The electric push rod drives the connecting plate to drive the movable end of the air extraction cylinder to extract the air in the clamping piston cylinders, so that the movable end of the clamping piston cylinder is retracted, and then the clamping plate is loosened and reset after the PCBA is loosened, so that the PCBA is more convenient to take. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiment description.

[0020] Figure 1The overall structure schematic view of the utility model.

[0021] Figure 2 The bottom structure schematic view of the utility model's substrate.

[0022] Figure 3 The structure schematic view of the utility model's substrate.

[0023] Figure 4 The structure schematic view of the utility model's fixing assembly.

[0024] In the drawings, the components represented by each reference numeral are listed as follows:

[0025] 100, bottom frame; 200, substrate; 201, sliding groove; 202, ring groove; 300, fixing assembly; 301, fixing plate; 302, clamping piston cylinder; 303, mounting seat; 304, clamping plate; 305, sliding rod; 306, pushing spring; 307, rubber pad; 400, reset assembly; 401, ring pipe; 402, air outlet pipe; 403, exhaust valve; 404, air cylinder; 405, connecting pipe; 406, electric push rod; 407, connecting plate; 500, cover plate; 501, sliding groove opening. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] Please refer to Figure 1 , Figure 3 and Figure 4 , the utility model is a kind of clamping assembly for PCBA board test, including bottom frame 100 and substrate 200;Substrate 200 is fixedly connected to the top of bottom frame 100, the inside of substrate 200 is opened with ring groove 202 and multiple sliding grooves 201, the inside of multiple sliding grooves 201 is provided with fixing assembly 300, and the bottom of substrate 200 is fixedly connected with reset assembly 400;

[0029] The fixing assembly 300 comprises a fixing plate 301 fixedly connected to the inside of the sliding groove 201, the inside of the fixing plate 301 is fixedly connected with a clamping piston cylinder 302, the movable end of the clamping piston cylinder 302 is fixedly connected with a mounting seat 303, one end of the mounting seat 303 away from the movable end of the clamping piston cylinder 302 is fixedly connected with a clamping plate 304, the mounting seat 303 and the fixing plate 301 are fixedly connected with a pushing spring 306, through the pushing spring 306, each mounting seat 303 can be pushed to move along the corresponding sliding groove 201 to the center of the base plate 200, and PCBA of different shapes can be fixed;

[0030] The reset assembly 400 comprises a ring pipe 401 fixedly connected to the inside of the ring groove 202, and the plurality of clamping piston cylinders 302 are in communication with the ring groove 202, the bottom of the base plate 200 is fixedly connected with a suction air cylinder 404 and an electric push rod 406, the input end of the suction air cylinder 404 and the ring pipe 401 are in communication with a connecting pipe 405, the output end of the electric push rod 406 is fixedly connected with a connecting plate 407, and the connecting plate 407 is fixedly connected to the movable end of the suction air cylinder 404, through the electric push rod 406 pushing the connecting plate 407, the suction air cylinder 404 can suck out the air in each clamping piston cylinder 302, and each clamping plate 304 can be reset, so that the PCBA is convenient to take out.

[0031] Specifically, the plurality of sliding grooves 201 are distributed radially around the center of the base plate 200, and the ring groove 202 is in communication with the plurality of sliding grooves 201;

[0032] The mounting seat 303 is fixedly connected with two sliding rods 305 on the side facing the fixing plate 301, and the two sliding rods 305 are movably sleeved in the inside of the fixing plate 301, and the clamping piston cylinder 302 is located between the two sliding rods 305, through the two sliding rods 305, the mounting seat 303 can move more stably;

[0033] The number of the pushing spring 306 is two, and the two pushing springs 306 are movably sleeved outside the two sliding rods 305, through movably sleeving the pushing spring 306 outside the sliding rod 305, the pushing spring 306 can be prevented from being bent;

[0034] The inside of the base plate 200 is fixedly connected with an air outlet pipe 402, the free end of the air outlet pipe 402 is fixedly connected with an exhaust valve 403, through closing the exhaust valve 403, the state of each clamping piston cylinder 302 can be fixed, so that the PCBA is clamped more stably.

[0035] Further, the back of the clamping plate 304 away from the fixed plate 301 is fixedly connected with a rubber pad 307, and the back of the rubber pad 307 away from the clamping plate 304 is provided with a triangular opening. The rubber pad 307 can play a buffering role to avoid damage to the PCBA. The triangular opening can exert downward pressure on the PCBA to make the PCBA more stable.

[0036] The top of the substrate 200 is fixedly connected with a cover plate 500, and the cover plate 500 is provided with a plurality of sliding groove openings 501, and the plurality of clamping plates 304 are respectively slidably connected in the corresponding sliding groove openings 501.

[0037] The operation process of the embodiment is as follows: when the PCBA needs to be fixed, first place the PCBA on the top of the cover plate 500, then open the exhaust valve 403 to make the annular tube 401 communicate with the outside air, then under the pushing of each pushing spring 306, each mounting seat 303 can move along the corresponding sliding groove 201 to the center of the substrate 200, and the movable end of the corresponding clamping piston cylinder 302 is pulled, then each rubber pad 307 can clamp the PCBA from each direction, and then the exhaust valve 403 is closed to fix the state of each clamping piston cylinder 302, so that the PCBA is clamped more stably.

[0038] When the PCBA needs to be taken out, the connecting plate 407 is pushed by the electric push rod 406 to make the air cylinder 404 exhaust the air in each clamping piston cylinder 302, so that the movable end of each clamping piston cylinder 302 is retracted, and each clamping plate 304 is loosened and reset, so that the PCBA can be easily taken out.

[0039] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A clamping assembly for PCBA board testing, comprising a chassis (100) and a base plate (200); characterized in that: The base plate (200) is fixedly connected to the top of the chassis (100), the inside of the base plate (200) is provided with a ring groove (202) and a plurality of sliding grooves (201), the inside of each of the plurality of sliding grooves (201) is provided with a fixing assembly (300), and the bottom of the base plate (200) is fixedly connected with a reset assembly (400). The fixing assembly (300) comprises a fixed plate (301) fixedly connected to the inside of the sliding groove (201), a clamping piston cylinder (302) fixedly connected to the inside of the fixed plate (301), an installation seat (303) fixedly connected to the movable end of the clamping piston cylinder (302), a clamping plate (304) fixedly connected to the end of the installation seat (303) away from the movable end of the clamping piston cylinder (302), and a pushing spring (306) fixedly connected between the installation seat (303) and the fixed plate (301). The reset assembly (400) comprises a ring pipe (401) fixedly connected to the inside of the ring groove (202), a plurality of clamping piston cylinders (302) are in communication with the ring groove (202), the bottom of the base plate (200) is fixedly connected with a gas suction cylinder (404) and an electric push rod (406), a connecting pipe (405) is in communication between the input end of the gas suction cylinder (404) and the ring pipe (401), the output end of the electric push rod (406) is fixedly connected with a connecting plate (407), and the connecting plate (407) is fixedly connected to the movable end of the gas suction cylinder (404).

2. The clamping assembly for testing a PCBA according to claim 1, wherein, The plurality of sliding grooves (201) are radially distributed around the center of the base plate (200), and the ring groove (202) and the plurality of sliding grooves (201) are in communication.

3. The clamping assembly for testing a PCBA board of claim 1, wherein, One side of the installation seat (303) facing the fixed plate (301) is fixedly connected with two sliding rods (305), both of which are movably sleeved in the inside of the fixed plate (301), and the clamping piston cylinder (302) is located between the two sliding rods (305).

4. The clamping assembly for testing a PCBA according to claim 3, wherein, The number of the pushing spring (306) is two, and each of the two pushing springs (306) is movably sleeved outside the two sliding rods (305).

5. The clamping assembly for testing a PCBA board of claim 1, wherein, One side of the clamping plate (304) away from the fixed plate (301) is fixedly connected with a rubber pad (307), and one side of the rubber pad (307) away from the clamping plate (304) is provided with a triangular opening.

6. The clamping assembly for testing a PCBA board of claim 1, wherein, The inside of the base plate (200) is fixedly connected with an air outlet pipe (402), and the free end of the air outlet pipe (402) is fixedly connected with an exhaust valve (403).

7. The clamping assembly for testing a PCBA board of claim 1, wherein, The top of the base plate (200) is fixedly connected with a cover plate (500), the inside of the cover plate (500) is provided with a plurality of sliding groove openings (501), and each of the plurality of clamping plates (304) is slidably connected to the inside of the corresponding sliding groove opening (501).

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