CN219369932U

CN219369932U - Printed circuit board test fixture

Info

Publication number: CN219369932U
Application number: CN202320568505.2U
Authority: CN
Inventors: 陈平; 龚华厚
Original assignee: Shaoxing Kexing Electronics Co ltd
Current assignee: Shaoxing Kexing Electronics Co ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-07-18
Anticipated expiration: 2033-03-22

Abstract

The utility model relates to the technical field of circuit board detection, in particular to a printed circuit board test fixture, which comprises a machine body and a heat dissipating device, wherein the surface of the machine body is provided with a bracket, the surface of the bracket is fixedly connected with a cylinder, the output end of the cylinder is fixedly connected with a thimble plate, the surface of the machine body is provided with a fixture, the heat dissipating device is arranged on the surface of the machine body and comprises a fan, the input end of the fan is fixedly connected with an air inlet pipe, the output end of the fan is fixedly connected with a guide pipe, and the surface of the machine body is fixedly connected with two hollow rods.

Description

Printed circuit board test fixture

Technical Field

The utility model relates to the technical field of circuit board detection, in particular to a printed circuit board testing tool.

Background

The printed circuit board is a provider of electrical connections to electronic components that can be tested during processing using a printed circuit board test fixture.

The utility model such as the publication No. CN205982547U, the circuit board test fixture, including the test platform, there are supports under the test platform, the upper surface rear side of the test platform has back plates vertically, the front side of the back plate has first locating block, the second locating block, the fixed plate, simulator and display sequentially from bottom to top, fixedly there are guide posts parallel to back plate between the first locating block and the second locating block, slide and equipped with the movable guide sleeve on the guide post, the movable guide sleeve is connected with the pressing plate, the front side of the pressing plate has testers, the signal input end of the display and output end of the simulator are connected with input end of the testers through the wire, there are lower ends connected with pressing plate and used for driving the movable guide sleeve to move up and down along the guide post manual pressing mechanism, the utility model is small and light, can obviously reduce the test intensity of the artificial circuit board, avoid the manual false detection and leak detection in the test, and the price is more suitable for the mass production and lowering costs of the enterprise along with the development of the electronic assembly technology, the density of PCB is higher and smaller, the test point quantity is more and more test points bring challenges to the traditional test technology, the test board tester and test equipment are researched and test equipment such as the test board and the test board are researched and developed according to the test object: the special circuit board test system and the universal circuit board test system are complex in structure, inconvenient to operate and expensive in price, and are very impractical for mass production of some electronic product manufacturers such as instrument manufacturers and disadvantageous for reducing the cost of the products, so that some electronic product manufacturers still use the traditional manual test method or the problem that the detection is not easy.

The inventor finds that in daily work, the thimble is mainly placed on the circuit board to carry out power-on detection in the use process of the printed circuit board test fixture, but when the detection is carried out, heat is generated after the surface of the thimble is contacted with the surface of the circuit board, so that the thimble and the circuit board generate heat, equipment and the circuit board are damaged when the detection is carried out for a long time, the service life is reduced, and the problem that the thimble and the circuit board in the equipment are damaged due to heating caused by the fact that the equipment is easy to generate heat in the detection process is caused.

Disclosure of Invention

The utility model aims to solve the defect that in the prior art, heat is easy to generate in the detection process, so that the thimble and a circuit board in the device are damaged due to heating, and provides a printed circuit board test fixture.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a printed circuit board test fixture, includes organism and heat abstractor, the surface of organism is provided with the support, the fixed surface of support is connected with the cylinder, the output fixedly connected with thimble board of cylinder, the surface of organism is provided with the tool, heat abstractor sets up on the surface of organism, heat abstractor includes the fan, the input fixedly connected with air-supply line of fan, the output fixedly connected with pipe of fan, the fixed surface of organism is connected with two hollow bars, the inner wall sliding connection of hollow bar has two blowpipes, the pipe respectively with the fixed surface of two blowpipes be connected, the fixed surface of thimble board is connected with the ejector pad, through setting up the ejector pad, is convenient for promote the blowpipe to remove in hollow bar, cooperates the fan to blow, blows heat dissipation to thimble and circuit board surface in the equipment, has reduced equipment when detecting, and the ejector pin produces heat with circuit board surface easily, causes equipment and the condition of circuit board impaired influence life for a long time easily.

Preferably, a plurality of air outlets are formed in the surface of the blowing pipe, through holes are formed in the surface of the hollow rod, and the air outlets in the blowing pipe can conveniently discharge air through the through holes in the surface of the hollow rod.

Preferably, the inner wall of hollow pole is provided with first spring, the both ends of first spring respectively with the inner wall fixed connection of blowpipe and hollow pole, through setting up first spring, be convenient for control blowpipe resets, can protect a plurality of air outlets in the blowpipe.

Preferably, the inner wall joint of air-supply line has the filter piece, a plurality of filtration holes have been seted up to the surface of filter piece, through setting up the filter piece, can intercept the spot when the air-supply line air-supply.

Preferably, the surface of organism is provided with auxiliary device, auxiliary device includes the slide bar, the spout has been seted up on the surface of organism, the number of slide bar has two, two the inner wall fixed connection of slide bar and spout, the surface sliding connection of slide bar has the fixed block, the fixed block's fixed surface is connected with the handle, pulls the fixed block through the handle and removes in the slide bar, can take out the tool, is convenient for take the circuit board, has reduced equipment because the space is too little when taking the circuit board, the easy condition that the mistake bumps the thimble and causes the damage appears.

Preferably, the round hole has been seted up on the surface of handle, the inner wall sliding connection of round hole has the inserted bar, two jacks have been seted up to organism surface spout inner wall, the inserted bar is pegged graft with the inner wall of jack, through inserted bar cooperation jack, can fix a position the fixed block, improves stability.

Preferably, the surface cover of inserted bar is equipped with the second spring, the both ends of second spring respectively with the fixed surface connection of inserted bar and handle, through setting up the second spring, the control inserted bar of being convenient for resets, improved the constraint effect of inserted bar simultaneously.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. according to the utility model, the circuit board is placed on the jig, the air cylinder drives the ejector pin plate to move, the circuit board is detected, the heat dissipation device is arranged, when equipment is needed to be used, the ejector pin plate is pressed down to drive the push block to press the blowing pipe, the first spring is stressed and deformed to generate elasticity, so that a blowing opening in the blowing pipe moves to a through hole on the surface of the hollow rod, the fan is used for air inlet through the air inlet pipe, the filter plate is used for filtering, the guide pipe blows air into the blowing pipe, the air outlet is used for blowing and dissipating heat, and the heat dissipation device is arranged, so that the heat dissipation of the equipment is facilitated, the phenomenon that the ejector pin and the circuit board are damaged easily due to heat generated between the ejector pin and the circuit board in the process of testing the circuit board is effectively reduced, the condition that the service life of the equipment is low is reduced, and the stability of the whole equipment is improved.

2. According to the utility model, by arranging the auxiliary device, when equipment is needed to be used, the pull rod is pulled, the second spring is stressed and deformed, the inserted rod loses the constraint on a group of jacks, the pull handle and the fixed block slide in the slide rod, the fixed block drives the jig to move to take the circuit board, and the use can be completed, and by arranging the auxiliary device, the auxiliary equipment is convenient to take the circuit board, so that the situation that the ejector pins are damaged due to the fact that the equipment space is too small when the equipment is used for taking the circuit board is effectively reduced, and the whole practicality of the equipment is improved.

Drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of a printed circuit board test fixture according to the present utility model;

FIG. 2 is a schematic view of the structure of the printed circuit board test fixture shown in FIG. 1A;

FIG. 3 is a schematic diagram of a portion of a heat dissipating device of a PCB test fixture according to the present utility model;

FIG. 4 is a schematic diagram of a portion of a heat dissipating device of a PCB test fixture according to the present utility model;

FIG. 5 is a schematic diagram of an auxiliary device for a PCB test fixture according to the present utility model;

fig. 6 is a schematic diagram of the structure of fig. 5B of the printed circuit board testing tool according to the present utility model.

Legend description:

1. a body; 2. a bracket; 3. a cylinder; 4. a needle ejection plate; 5. a jig; 6. a heat sink; 61. a blower; 62. a conduit; 63. a pushing block; 64. a hollow rod; 65. a blowing pipe; 66. a first spring; 67. an air inlet pipe; 68. a filter sheet; 7. an auxiliary device; 71. a fixed block; 72. a slide bar; 73. a handle; 74. a jack; 75. a rod; 76. and a second spring.

Detailed Description

Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a printed circuit board test fixture, includes organism 1 and heat abstractor 6, and the surface of organism 1 is provided with support 2, and the fixed surface of support 2 is connected with cylinder 3, and the output fixedly connected with thimble board 4 of cylinder 3, and the surface of organism 1 is provided with tool 5, and heat abstractor 6 sets up on the surface of organism 1, and the surface of organism 1 is provided with auxiliary device 7.

The specific arrangement and function of the heat sink 6 and the auxiliary device 7 will be described in detail below.

In this embodiment: the heat dissipation device 6 includes fan 61, the input fixedly connected with air-supply line 67 of fan 61, the output fixedly connected with pipe 62 of fan 61, the fixed surface of organism 1 is connected with two hollow poles 64, the inner wall sliding connection of hollow pole 64 has two blowpipes 65, pipe 62 respectively with the fixed surface of two blowpipes 65, the fixed surface of thimble board 4 is connected with ejector pad 63, through setting up ejector pad 63, be convenient for promote the blowpipe 65 and remove in hollow pole 64, the cooperation fan 61 is bloied, blow the heat dissipation to thimble and the circuit board surface in the equipment, when having reduced equipment and when detecting, the thimble produces heat with the circuit board surface easily, cause equipment and the impaired condition that influences the life-span of circuit board easily for a long time.

Specifically, the surface of the blowpipe 65 is provided with a plurality of air outlets, the surface of the hollow rod 64 is provided with through holes, and the air outlets in the blowpipe 65 are conveniently discharged through the through holes on the surface of the hollow rod 64.

Specifically, the inner wall of the hollow rod 64 is provided with a first spring 66, and two ends of the first spring 66 are fixedly connected with the blowpipe 65 and the inner wall of the hollow rod 64 respectively.

In this embodiment: by providing the first spring 66, the blowpipe 65 is controlled to be reset conveniently, and a plurality of air outlets in the blowpipe 65 can be protected.

Specifically, filter plate 68 has been installed to the inner wall joint of air-supply line 67, and a plurality of filtration holes have been seted up on the surface of filter plate 68, through setting up filter plate 68, can intercept the spot when air-supply line 67 air inlet.

In this embodiment: the auxiliary device 7 comprises slide bars 72, sliding grooves are formed in the surface of the machine body 1, two slide bars 72 are fixedly connected with the inner walls of the sliding grooves, fixing blocks 71 are slidably connected with the surfaces of the slide bars 72, and handles 73 are fixedly connected with the surfaces of the fixing blocks 71.

In this embodiment: the fixture 5 can be taken out by pulling the fixed block 71 in the sliding rod 72 through the handle 73, so that the circuit board can be conveniently taken out, and the damage caused by the fact that the equipment bumps the thimble by mistake easily due to too small space when the circuit board is taken out is reduced.

Specifically, the round hole has been seted up on the surface of handle 73, and the inner wall sliding connection of round hole has inserted bar 75, and two jacks 74 have been seted up to organism 1 surface spout inner wall, and inserted bar 75 is pegged graft with the inner wall of jack 74, through inserted bar 75 cooperation jack 74, can fix a position fixed block 71, improves stability.

Specifically, the surface of the insert rod 75 is sleeved with a second spring 76, and two ends of the second spring 76 are fixedly connected with the surfaces of the insert rod 75 and the handle 73 respectively.

In this embodiment: by providing the second spring 76, the plunger 75 is controlled to return easily, and the binding effect of the plunger 75 is improved.

Working principle: the circuit board is placed on the tool 5, the cylinder 3 drives the thimble board 4 and removes, detect the circuit board, through setting up heat abstractor 6, when equipment is used to needs, thimble board 4 pushes down and drives push block 63 and pushes down blowpipe 65, first spring 66 atress deformation produces elasticity and makes the through-hole department of blow hole in blowpipe 65 to hollow pole 64 surface, fan 61 carries out the air inlet through air-inlet tube 67, filter disc 68 filters, pipe 62 blows the wind to blowpipe 65, the air outlet carries out the heat dissipation of blowing, through setting up heat abstractor 6, be convenient for dispel the heat to equipment, can effectually reduce equipment in the testing process to the circuit board, can generate heat between thimble and the circuit board, can cause the impaired phenomenon of thimble and the circuit board easily during long-time detection, the condition that equipment life is low has been reduced, and then improved equipment holistic stability, when equipment is used to needs, the pulling pull rod, second spring 76 atress deformation produces, insert rod 75 loses the hole 74, pulling handle 73 and fixed block 71 carries out the slip piece in slide rod 72, the equipment is taken down in order to take the equipment, the equipment is convenient for taking down, the circuit board is easy to take the equipment is realized because of setting up, the equipment is damaged, and the practicality is easy to take the equipment is difficult, and the equipment is taken down, and the equipment is convenient for take the whole equipment is easy to take the equipment, and the equipment is easy to be damaged when the equipment is used to take the equipment is convenient to take.

Claims

1. Printed circuit board test fixture, including organism (1) and heat abstractor (6), its characterized in that: the surface of organism (1) is provided with support (2), the fixed surface of support (2) is connected with cylinder (3), the output fixedly connected with thimble board (4) of cylinder (3), the surface of organism (1) is provided with tool (5), heat abstractor (6) set up on the surface of organism (1), heat abstractor (6) include fan (61), the input fixedly connected with air-supply line (67) of fan (61), the output fixedly connected with pipe (62) of fan (61), the fixed surface of organism (1) is connected with two hollow bars (64), the inner wall sliding connection of hollow bar (64) has two blowpipes (65), the surface fixedly connected with ejector pad (63) of pipe (62) respectively with two blowpipes (65).

2. The printed circuit board test fixture of claim 1, wherein: the surface of the blowing pipe (65) is provided with a plurality of air outlets, and the surface of the hollow rod (64) is provided with a through hole.

3. The printed circuit board test fixture of claim 1, wherein: the inner wall of the hollow rod (64) is provided with a first spring (66), and two ends of the first spring (66) are fixedly connected with the blowpipe (65) and the inner wall of the hollow rod (64) respectively.

4. The printed circuit board test fixture of claim 1, wherein: the inner wall joint of air-supply line (67) has filter plate (68), a plurality of filtration holes have been seted up on the surface of filter plate (68).

5. The printed circuit board test fixture of claim 1, wherein: the utility model discloses a machine body, including organism (1), the surface of organism (1) is provided with auxiliary device (7), auxiliary device (7) include slide bar (72), the spout has been seted up on the surface of organism (1), the number of slide bar (72) has two, two slide bar (72) and the inner wall fixed connection of spout, the surface sliding connection of slide bar (72) has fixed block (71), the surface fixedly connected with handle (73) of fixed block (71).

6. The printed circuit board test fixture of claim 5, wherein: the surface of handle (73) has seted up the round hole, the inner wall sliding connection of round hole has inserted bar (75), two jack (74) have been seted up to organism (1) surface spout inner wall, inserted bar (75) are pegged graft with the inner wall of jack (74).

7. The printed circuit board test fixture of claim 6, wherein: the surface of the inserted link (75) is sleeved with a second spring (76), and two ends of the second spring (76) are fixedly connected with the surfaces of the inserted link (75) and the handle (73) respectively.