CN218470819U

CN218470819U - Device performance test fixture

Info

Publication number: CN218470819U
Application number: CN202222711139.XU
Authority: CN
Inventors: 龚晓奇
Original assignee: Wuhan Laichuangde Technology Co ltd
Current assignee: Wuhan Laichuangde Technology Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-02-10
Anticipated expiration: 2032-10-14

Abstract

The utility model discloses a device performance test fixture, including device adjusting part, push down structural component, PCBA adjusting part and test component, and device adjusting part, push down the equal fixed connection of structural component and PCBA adjusting part on the bottom plate, PCBA adjusting part sets up at the back of device adjusting part, and test component then sets up the top at PCBA adjusting part. The utility model discloses a device adjusting part who establishes, push down the structure subassembly, PCBA adjusting part and test assembly, the precision adjustment slip table has been used, device and PCBA fix respectively on respective slip table, through the position control of high accuracy, can accurately align device and PCBA's pad, the FPC of device need not to weld, the mode that adopts to compress tightly makes FPC and PCBA's pad closely laminate and realize electrical connection, PCBA fixes inserting even in the connector, need not relapse the plug operation, the whole same PCBA of use of test, guarantee the uniformity of test condition.

Description

Device performance test fixture

Technical Field

The utility model relates to a device FPC tests technical field, specifically is a device performance test fixture.

Background

The FPC is also called as a flexible circuit board and a flexible circuit board, and is favored by 8230with excellent characteristics of light weight, thin thickness, free bending and folding and the like, but with the rapid development of the electronic industry, the design of the circuit board tends to be more and more high-precision and high-density, the traditional manual detection method cannot meet the production requirement, the automatic detection of the FPC defect becomes the inevitable trend of the industrial development, and the device clamp has more defects.

The existing device test fixture has the following disadvantages:

1. the FPC and the PCBA of the device are welded and then the whole module is tested conventionally. As the bonding pads on the FPC of the tested device are too dense, when the FPC is welded on the PCBA, the problems of FPC deflection, dislocation and the like easily occur when staff visually measure the alignment and manually weld, and further short circuit is caused to influence the test result;

2. and if the performance is poor, dismounting the device and returning the device to the factory for maintenance. A series of problems such as FPC scalding damage, PCBA short circuit damage and the like are easily caused in the dismounting process, and the production efficiency and the cost are influenced;

3. after the FPC of a device is welded on the PCBA in a conventional test, the PCBA is repeatedly inserted and pulled in the connector, so that the gold fingers are seriously abraded, and the test performance is influenced. The pad of the connector is loosened after long-term repeated plugging, so that the connector cannot be used. A PCBA is welded and bound to a device for testing, and the consistency of testing conditions (PCBA) cannot be guaranteed.

Therefore, a device performance test fixture is designed, and the PFC performance test of the device is convenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device performance test fixture to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a device performance test fixture, includes device adjusting part, pushes down structure subassembly, PCBA adjusting part and test component, and the equal fixed connection of device adjusting part, pushes down structure subassembly and PCBA adjusting part is on the bottom plate, and PCBA adjusting part sets up the back at device adjusting part, and test component then sets up the top at PCBA adjusting part.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Preferably, the device adjusting part includes device fixing base, cross roller cross slip table, guiding axle, kicking block and the device that awaits measuring, and the upper surface of device fixing base set up with the groove of the device that awaits measuring, the tongue of placing the guiding axle is seted up to the upper surface of device fixing base, and the tongue communicates with the groove of placing the device that awaits measuring, the quantity of guiding axle is two, the one end terminal surface of guiding axle and the inside wall fixed connection of tongue, reset spring has been cup jointed on the surface of guiding axle, the round hole with guiding axle terminal surface looks adaptation is seted up to the side of kicking block, and reset spring's terminal surface and the side overlap joint of kicking block, cross roller cross slip table sets up the bottom at the device fixing base.

Preferably, the downward pressing structure component comprises a first X-axis screw driving platform, an axle seat and a rotating arm, the axle seat is arranged on the surface of the first X-axis screw driving platform, the rotating arm is arranged on the upper surface of the axle seat, the rotating arm is in a right-angle shape, a knurled knob is arranged on the upper surface of the rotating arm, a pressing block is connected to the lower surface of the knurled knob in a threaded manner, and a square groove matched with the pressing block is formed in one side of the lower surface of the rotating arm.

Preferably, PCBA adjusting part includes second X axle screw drive platform and PCBA fixing base, and the PCBA fixing base sets up the upper surface at second X axle screw drive platform, the cross slot has been seted up to the upper surface of PCBA fixing base, the upper surface of cross slot is provided with the cushion, the upper surface overlap joint of cushion has the PCBA board.

Preferably, the upper surface of the test component is provided with an observation port matched with the PCBA board, four corners of the lower surface of the test component are provided with positioning columns, and the lower surface of the test component is fixedly connected with the surface of the bottom board through the four positioning columns.

Advantageous effects

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

the precise adjustment sliding tables are used, the device and the PCBA are respectively fixed on the respective sliding tables, and the device and the bonding pad of the PCBA can be accurately aligned through high-precision position adjustment;

the FPC of the device does not need to be welded, and the FPC is tightly attached to a welding disc of the PCBA in a pressing mode to realize electrical connection;

PCBA is fixed to be inserted and connected in the connector, repeated plugging operation is not needed, the same PCBA is used in the whole testing process, and the consistency of testing conditions is guaranteed.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the device adjustment assembly of the present invention;

fig. 3 is a schematic view of a three-dimensional structure of the pressing structure component of the present invention;

figure 4 is the utility model discloses PCBA adjusts subassembly spatial structure sketch map.

In the figure: 1. a device adjustment assembly; 101. a device holder; 102. a cross roller cross sliding table; 103. a guide shaft; 104. a top block; 105. a device under test; 2. pressing down the structural component; 201. a first X-axis screw drive platform; 202. a shaft seat; 203. a rotating arm; 204. knurling a knob; 205. briquetting; 3. a PCBA adjustment component; 301. a second X-axis screw drives the platform; 302. a PCBA fixed seat; 303. cushion blocks; 304. PCBA board; 4. and testing the assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a device performance test fixture, includes device adjusting part 1, pushes down structural component 2, PCBA adjusting part 3 and test component 4, and the equal fixed connection of device adjusting part 1, pushes down structural component 2 and PCBA adjusting part 3 on the bottom plate, PCBA adjusting part 3 sets up the back at device adjusting part 1, and test component 4 then sets up the top at PCBA adjusting part 3.

Adopt cross roller guide rail type XY cross slip table as the adjusting part of device fixing base 101, it is more smooth and easy to slide, and the durability is better, and the main part adopts the aluminum alloy material, and the surface adopts black anodic oxidation to handle, satisfies durable when having realized the lightweight, is difficult for appearing the apparent wear. The motion precision is high and have good stability, and the precision can be up to 3um, fully satisfies the demand that FPC and PCBA pad counterpoint.

And a second X-axis screw driving platform 301 is adopted as an adjusting component of the PCBA fixing seat 302, and a dovetail groove guide rail and a screw thread driving adjusting mode are adopted. The volume is small and exquisite, and bearing capacity is big, has better depth of parallelism and removal precision.

Further, device adjusting part 1 includes device fixing base 101, cross roller cross sliding table 102, guiding axle 103, kicking block 104 and device 105 to be tested, and the upper surface of device fixing base 101 set up with device 105 to be tested's groove, the tongue of placing guiding axle 103 is seted up to device fixing base 101's upper surface, and the tongue communicates with the groove of placing device 105 to be tested, the quantity of guiding axle 103 is two, the inside wall fixed connection of the one end terminal surface of guiding axle 103 and tongue, reset spring has been cup jointed on the surface of guiding axle 103, the round hole with guiding axle 103 terminal surface looks adaptation is seted up to kicking block 104's side, and reset spring's terminal surface and kicking block 104's side overlap joint, cross roller cross sliding table 102 sets up in device fixing base 101's bottom, and the shape of roof 104 is type, the side of roof 104 and the side overlap joint of device 105 to be tested.

In this embodiment, the device fixing base 101 is designed according to the size of a device of a required model, and has interchangeability of devices 105 to be tested of various models, and meanwhile, the device fixing base meets the requirements of convenience in positioning and convenience in taking and placing when operated by staff. The device to be tested is a high-precision and expensive electronic component, and the top block 104 which is in direct contact with the device and has a powerful function is made of POM material. The POM has good electrical insulation, high strength and rigidity, good elasticity and good abrasion resistance, and is not easy to cause scratch damage and performance damage of the appearance of the device. The top block 104 is in contact with the surface of the device under the action of the guide shaft 103 and the spring, so that the device is uniformly stressed and fixed in the groove, and the side surface of the device is not marked.

Further, push down the structure subassembly 2 and include first X axle screw drive platform 201, axle bed 202 and rocking arm 203, axle bed 202 sets up on the surface of first X axle screw drive platform 201, and rocking arm 203 sets up the upper surface at axle bed 202, and the shape of rocking arm 203 is the right angle shape, the upper surface of rocking arm 203 is provided with annular knurl knob 204, and annular knurl knob 204's lower surface threaded connection has briquetting 205, the square groove with briquetting 205 looks adaptation is seted up to one side of rocking arm 203 lower surface.

In this embodiment, axle bed 202 is fixed on first X axle screw drive platform 201, and inside and designed the spacer pin, guarantees that rocking arm 203 rotates at certain angular range, and the start position makes things convenient for the staff to carry out the change test of device, and the stop position is briquetting 205 work position, conveniently compresses tightly the operation to the FPC of device, avoids the staff excessively to rotate and makes a round trip to adjust the efficiency of influence. The knob adopts the knurling technology, increases the friction area, plays skid-proof effect. The pressing block 205 is in direct contact with and electrically connected with the FPC of the device, and needs to have good electrical insulation, good elasticity and good wear resistance, and does not damage the surface of the FPC while not affecting the testing performance, so that the POM material is adopted. The staff twists annular knurl knob 204 clockwise, pushes down briquetting 205, makes FPC and PCBA closely laminate, accomplishes electrical connection, twists annular knurl knob 204 anticlockwise, and briquetting 205 lifts under the effect of internal spring.

Push down that structural component 2 passes through a X axle screw drive platform 201 and adjusts, counterpoint each welding position and satisfy the functional requirement, there is locate function inside.

Further, PCBA adjusting part 3 includes second X axle screw drive platform 301 and PCBA fixing base 302, and PCBA fixing base 302 sets up the upper surface at second X axle screw drive platform 301, the cross slot has been seted up to the upper surface of PCBA fixing base 302, the upper surface of cross slot is provided with cushion 303, the upper surface overlap of cushion 303 has PCBA board 304.

In this embodiment, PCBA fixing base 302 is fixed on second X axle screw drive platform 301, and the one-way regulation demand of PCBA is satisfied to 20 um's operation precision. The PCBA fixing seat 302 is independently designed according to the PCBA corresponding to the device to be tested 105, and replacement is convenient. A POM cushion block 303 is arranged below a region of a pad to be welded of the PCBA and is matched with a pressing block 205 in the downward pressing structure component 2 to play a role in pressing the FPC and the PCBA tightly without influencing appearance and testing performance.

Furthermore, the upper surface of the test component 4 is provided with an observation port matched with the PCBA board 304, four corners of the lower surface of the test component 4 are provided with positioning columns, and the lower surface of the test component 4 is fixedly connected with the surface of the bottom plate through the four positioning columns.

The device to be tested 102 and the PCBA 304 are respectively fixed by one crossed roller sliding table 102 and the first X-axis screw driving platform 201, and the positioning welding of the devices to be tested 105 of all models can be realized within a stroke range through matching adjustment.

When using, make the required PCBA integrated circuit board of test connect on the PCBA fixing base, pull the kicking block, the FPC board that makes the device is placed and is offered some grooves on device fixing base surface, put the kicking block, make the kicking block pass through reset spring slow moving, and block the FPC board, adjust first X axle screw drive platform and cross roller cross slip table, make the FPC board be connected with the PCBA board, rotate the rocking arm, rotatory annular knurl knob, make the briquetting push down, compress tightly FPC board and PCBA board, and accomplish electrical connection, test the FPC board of device, therefore, this anchor clamps have the effect of testing the device performance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a device performance test fixture, its characterized in that, includes device adjusting part (1), pushes down structure subassembly (2), PCBA adjusting part (3) and test component (4), and device adjusting part (1), pushes down equal fixed connection of structure subassembly (2) and PCBA adjusting part (3) on the bottom plate, PCBA adjusting part (3) set up the back at device adjusting part (1), and test component (4) then set up the top at PCBA adjusting part (3).

2. A device performance test fixture as claimed in claim 1, wherein: device adjusting part (1) includes device fixing base (101), cross roller cross slip table (102), guiding axle (103), kicking block (104) and device (105) that awaits measuring, and the upper surface of device fixing base (101) set up with the groove of device (105) that awaits measuring, the tongue of placing guiding axle (103) is seted up to the upper surface of device fixing base (101), and the tongue communicates with the groove of placing device (105) that awaits measuring, the quantity of guiding axle (103) is two, the one end terminal surface of guiding axle (103) and the inside wall fixed connection of tongue, reset spring has been cup jointed on the surface of guiding axle (103), the round hole with guiding axle (103) terminal surface looks adaptation is seted up to the side of kicking block (104), and reset spring's terminal surface and the side overlap joint of kicking block (104), cross roller cross slip table (102) sets up the bottom at device fixing base (101).

3. The device performance testing fixture of claim 1, wherein: push down construction assembly (2) including first X axle screw drive platform (201), axle bed (202) and rocking arm (203), axle bed (202) set up on the surface of first X axle screw drive platform (201), and rocking arm (203) sets up the upper surface at axle bed (202), and the shape of rocking arm (203) is right angle shape, the upper surface of rocking arm (203) is provided with annular knurl knob (204), and the lower surface threaded connection of annular knurl knob (204) has briquetting (205), the square groove with briquetting (205) looks adaptation is seted up to one side of rocking arm (203) lower surface.

4. A device performance test fixture as claimed in claim 1, wherein: PCBA adjusting part (3) include second X axle screw drive platform (301) and PCBA fixing base (302), and PCBA fixing base (302) set up the upper surface at second X axle screw drive platform (301), the cross slot has been seted up to the upper surface of PCBA fixing base (302), the upper surface of cross slot is provided with cushion (303), the upper surface overlap joint of cushion (303) has PCBA board (304).

5. A device performance testing fixture according to any of claims 1 or 4, wherein: the upper surface of the test component (4) is provided with an observation port matched with the PCBA board (304), four corners of the lower surface of the test component (4) are provided with positioning columns, and the lower surface of the test component (4) is fixedly connected with the surface of the bottom plate through the four positioning columns.