CN218470798U

CN218470798U - Test fixture and cabinet with same

Info

Publication number: CN218470798U
Application number: CN202222356087.9U
Authority: CN
Inventors: 胡永康; 康海广
Original assignee: Suzhou Yourong Electronics Co ltd
Current assignee: Suzhou Yourong Electronics Co ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2023-02-10
Anticipated expiration: 2032-09-05

Abstract

The utility model discloses a test fixture and a cabinet with the same, which comprises a frame body with a fixture bin and a circuit bin, wherein the fixture bin is separated from the circuit bin by a partition plate, a lower air cylinder is installed at the top of the frame body, an upper fixture is installed on an extending shaft of the lower air cylinder, a lower fixture is installed on the upper surface of the partition plate, a detection probe is installed on the lower fixture, conveying components are installed on two side walls of the fixture bin, and the conveying components are positioned between the upper fixture and the lower fixture and are used for conveying products into or out of the fixture bin; the utility model discloses can solve present PCB test fixture test structure complicacy, the testing process is loaded down with trivial details, is unfavorable for improving the detection efficiency of PCB board.

Description

Test fixture and cabinet with same

Technical Field

The utility model relates to an automatic change test fixture field, concretely relates to test fixture and rack that has this test fixture.

Background

The PCB is a common electronic component, and when the PCB is tested, the PCB needs to be fixed by the PCB test fixture, so that the PCB test fixture is widely applied to the electronic production process.

Present off-line ICT has not satisfied the production line requirement, for realizing intelligent automation and quick production, the mill all comes into operation online ICT, when testing the PCB board through online ICT, at first set up the test track, place the orbital bottom of test with lower anchor clamps, carry the PCB board that will wait to detect through the test track directly over lower anchor clamps, the test track sinks to drive and waits that the PCB board that waits to detect sinks, make the PCB board that waits to detect drop to down on the anchor clamps, make simultaneously and go up the anchor clamps decline, go up the anchor clamps and will wait to detect the PCB board and press to down on the anchor clamps, realize the detection of PCB board.

In the process, the test track is required to drive the PCB to sink to the lower clamp, and then the upper clamp is controlled to press the PCB to the lower clamp, so that the process is complex in test, and the detection rate of the PCB is not improved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving above-mentioned technical problem, present PCB test fixture test structure is complicated promptly, and the testing process is loaded down with trivial details, is unfavorable for improving the detection efficiency of PCB board.

In a first aspect, the utility model provides a test fixture, including the support body that has anchor clamps storehouse and circuit storehouse, the anchor clamps storehouse with the circuit storehouse separates through the baffle, the air cylinder is installed down at the support body top, install anchor clamps on the air cylinder extension shaft down, surface mounting has anchor clamps down on the baffle, install the test probe down on the anchor clamps, install conveying assembly on the wall of anchor clamps storehouse both sides, conveying assembly is located go up between anchor clamps and the lower anchor clamps for with the product fortune in or transport out in the anchor clamps storehouse.

In the preferred technical scheme of above-mentioned combined type carriage, the conveyor components is including installing slide rail and rodless cylinder on the inner wall of anchor clamps storehouse both sides, rodless cylinder is located the slide rail top, it has the slider to slide on the slide rail, install the mounting bracket on the slider, it has the tray to float perpendicularly on the mounting bracket, rodless cylinder passes through connecting block control the tray business turn over in the anchor clamps storehouse.

In the preferable technical scheme of the above composite type conveying frame, the test fixture further comprises a detection assembly, and the detection assembly is installed in the line bin and used for connecting or disconnecting the detection probe loop.

In the preferred technical scheme of above-mentioned combined type carriage, determine module is including the first circuit board and the second circuit board that are parallel to each other, first circuit board slidable mounting is in the circuit storehouse, the socket has on the first circuit board, the second circuit board has the installation detecting probe's plug, install the limiting plate on the inner wall of circuit storehouse both sides, rotate on the limiting plate and install the gear, install the rack on the limiting plate, the rack passes the limiting plate and with gear engagement, install the sideslip cylinder on the inner wall of circuit storehouse, install the rotation piece on the sideslip cylinder projecting shaft, it connects to rotate the gear setting.

In the preferred technical scheme of above-mentioned combined type carriage, the mounting bracket is the Z style of calligraphy, install the spliced pole on the upper surface of mounting bracket below horizontal part, the mounting hole that corresponds has on the tray, the tray is installed on the spliced pole, the cover is equipped with the spring on the spliced pole.

In the preferable technical scheme of the composite conveying frame, the lower surface of the upper clamp is provided with a positioning pin, and the upper surface of the lower clamp is correspondingly provided with a pin seat.

In the preferable technical scheme of the composite conveying frame, the surface of one side, far away from the transverse moving cylinder, of the line bin is provided with a baffle.

In the preferable technical scheme of the composite conveying frame, the top of the frame body is provided with a protective cover.

In a second aspect, the present invention also provides a cabinet, which comprises the above-mentioned test fixture.

The utility model has the advantages that:

1) Drive mounting bracket and the synchronous business turn over anchor clamps storehouse of tray through rodless cylinder, push down the cylinder and drive anchor clamps and push down the tray so that PCB board contact test probe, realized the automated inspection to the PCB board, reduce the test procedure of PCB board, through the test fixture of this application, effectively improved the detection rate of PCB board, possess the practicality.

2) The sideslip cylinder passes through the gear and drives the rack and move along support body length direction for socket on the first circuit board and plug gomphosis on the second circuit board switch on the detection probe return circuit, this structure has transmission power because of rack and pinion transmission greatly, effect gear drive, long service life, work is steady, characteristics such as reliability height, effectively avoided because of the detection probe is more, only directly promote first circuit board through the sideslip cylinder and can not make the problem that a plurality of plugs and sockets are connected completely, improve the accuracy that the PCB board detected.

Drawings

FIG. 1 is a schematic view of a test fixture from a first perspective;

FIG. 2 is a front view of the test fixture with the guard and protective cover removed;

FIG. 3 is a schematic view of a second perspective of the test fixture;

FIG. 4 is an enlarged view of a portion A of FIG. 3;

FIG. 5 is a schematic view of the test fixture installed in a cabinet;

in the figure: the rack body 1, the clamp bin 101, the line bin 102, the partition plate 2, the downward pressing cylinder 3, the upper clamp 4, the lower clamp 5, the sliding rail 71, the rodless cylinder 72, the sliding block 73, the mounting frame 74, the tray 75, the connecting block 76, the first line plate 81, the socket 810, the limiting plate 82, the gear 83, the rack 84, the traverse cylinder 85, the rotating piece 86, the rotating lug 861, the rotating rod 862, the supporting column 9, the spring 11, the positioning pin 12, the pin base 13, the pin hole 14, the baffle 15, the protective cover 16 and the cabinet body 20.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "connected," and "connected" in the description of the present invention are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The current PCB test fixture pointed out based on the background technology has a complex test structure and a complex test process, and is not beneficial to improving the detection efficiency of the PCB. The utility model provides a test fixture aims at taking the PCB board through the cooperation of outside manipulator on tray 75, drives mounting bracket 74 and the synchronous business turn over anchor clamps storehouse 101 of tray 75 through rodless cylinder 72, and the air cylinder 3 that pushes down drives anchor clamps 4 and pushes down so that PCB board contact test probe, has realized the automated inspection to the PCB board, reduces the test procedure of PCB board, improves the detection rate that the PCB board detected.

Referring specifically to fig. 1-5, wherein fig. 1 is a schematic view of a first view of a test fixture; FIG. 2 is a front view of the test fixture with the baffle 15 and protective cover 16 removed; FIG. 3 is a schematic view of a second perspective of the test fixture; FIG. 4 is an enlarged view of a portion A of FIG. 3; fig. 5 is a schematic view of a test fixture installed in a cabinet.

Referring to fig. 1 to 4, the utility model discloses a test fixture is including the support body 1 that has anchor clamps storehouse 101 and circuit storehouse 102, anchor clamps storehouse 101 with circuit storehouse 102 separates through baffle 2, air cylinder 3 is installed down at 1 top of support body, install anchor clamps 4 on the air cylinder 3 projecting shaft down, 2 surface mounting on the baffle have anchor clamps 5 down, install the test probe on the anchor clamps 5 down, install conveying component on the wall of anchor clamps storehouse 101 both sides, conveying component is located between upper clamp 4 and the lower clamp 5 for with the product fortune into or transport out in the anchor clamps storehouse 101.

The conveying assembly comprises a sliding rail 71 and a rodless cylinder 72 which are installed on the inner walls of two sides of the clamp bin 101, the rodless cylinder 72 is located above the sliding rail 71, a sliding block 73 slides on the sliding rail 71, an installation frame 74 is installed on the sliding block 73, a tray 75 floats vertically on the installation frame 74, and the rodless cylinder 72 is controlled through a connecting block 76 to pass through the tray 75 to enter and exit the clamp bin 101.

The test fixture further comprises a detection assembly, wherein the detection assembly is installed in the line bin 102 and is used for enabling or disabling the detection probe loop. The detecting component includes first circuit board 81 and the second circuit board that is parallel to each other, first circuit board 81 slidable mounting is in the circuit storehouse 102, socket 810 has on the first circuit board 81, the second circuit board has the installation detecting probe's plug, install limiting plate 82 on the inner wall of circuit storehouse 102 both sides, it installs gear 83 to rotate on the limiting plate 82, install rack 84 on the limiting plate 82, rack 84 passes limiting plate 82 and with the gear 83 meshing, install sideslip cylinder 85 on the inner wall of circuit storehouse 102, sideslip cylinder 85 stretches out epaxial and installs rotation piece 86, it connects to rotate piece 86 gear 83 sets up.

Referring to fig. 1-4, the test fixture includes a frame body 1, the frame body 1 is divided into a fixture chamber 101 and a circuit chamber 102 by a partition plate 2, a down-pressure cylinder 3 is installed at the top of the frame body 1, the down-pressure cylinder 3 has four and is equally divided on the upper portion of the frame body 1, an upper fixture 4 is installed on an extending shaft end of the four down-pressure cylinders 3, a lower fixture 5 is installed on the partition plate 2, a plurality of detection probes (not shown in the drawings) are installed on the lower fixture 5, a conveying assembly is installed between the upper fixture 4 and the lower fixture 5 in the upper fixture 4 chamber 101, the conveying assembly includes a sliding rail 71 and a rodless cylinder 72 installed on inner walls on two sides of the fixture chamber 101, the rodless cylinder 72 is located above the sliding rail 71, a sliding block 73 is slidably connected on the sliding rail 71, a mounting frame 74 is installed above the sliding block 73 through a bolt, a tray 75 is installed on the mounting frame 74, the tray 75 is arranged on the mounting frame 74 in a manner that the tray 75 can float up and down, the rodless cylinder 72 includes a rod portion and a sliding portion, the sliding portion slides on the rod portion, the mounting frame 76, and the side wall of the sliding portion is connected to the mounting frame 74, so that the fixture chamber 75 can pass through the connecting block 76, and then pass through the fixture chamber 101, and pass through the fixture chamber 101.

The detection assembly is arranged in the circuit bin 102 and comprises a first circuit board 81 and a second circuit board (not shown in the drawing) which are arranged along the width direction of the frame body 1, the first circuit board 81 and the second circuit board are parallel to each other, the first circuit board 81 is slidably arranged in the circuit bin 102, the second circuit board is fixed in the circuit bin 102, a plug of a detection probe is arranged on the second circuit board, a corresponding socket 810 is arranged on the first circuit board 81, after the socket 810 on the first circuit board 81 is connected with the plug of the detection probe on the second circuit board, the PCB can be detected through the detection probe arranged on the lower clamp 5, the detection assembly further comprises a limiting plate 82, the limiting plate 82 is arranged on the inner walls of two sides of the circuit bin 102, a gear 83 is rotatably arranged on the limiting plate 82, a rack 84 is arranged on one side, facing the limiting plate 82, the rack 84 penetrates through the limiting plate 82 to be meshed with the gear 83, a cross sliding cylinder 85 is arranged on the frame body 1, an extending shaft of the cross sliding cylinder 85 is provided with a rotating member 86, the rotating member 86 comprises a rotating lug 861 and a rotating rod, one end of the rotating member 861, and the other end of the rotating member is fixedly connected with the gear 83.

Referring to fig. 1-4, in an initial state, the product trays 75 are outside the gripper bin 101.

When the PCB is detected, the PCB is grabbed to a fixed position on a product tray 75 through a manipulator matched with the outside, after a sensor arranged on a frame body 1 detects the PCB on the tray 75, a rodless cylinder 72 works, a sliding part of the rodless cylinder 72 drives a mounting frame 74 and the tray 75 to synchronously move into a clamp bin 101 through a connecting block 76, after the tray 75 returns, a down-pressing cylinder 3 is controlled to work, the down-pressing cylinder 3 drives an upper clamp 4 to move downwards, the upper clamp 4 presses the PCB, the tray 75 moves up and down on the mounting frame 74, after a certain distance of downward movement, the PCB is in contact test with a detection probe, after the test is completed, the down-pressing cylinder 3 is reset, the rodless cylinder 72 is controlled to work, the PCB on the tray 75 is pushed out of the clamp bin 101, and the manipulator takes away the detected PCB, so as to perform lower-wheel detection. According to the PCB detection device, manual operation is replaced by taking the PCB on the tray 75 through the cooperation of the manipulator, so that the automatic detection of the PCB is realized, the detection rate of the PCB detection is improved, the allocation of operators is reduced, and the production investment is reduced; drive mounting bracket 74 and tray 75 synchronous business turn over anchor clamps storehouse 101 through rodless cylinder 72, push down cylinder 3 and drive anchor clamps 4 and push down so that PCB board contact test probe, realized having effectively improved the detection rate of PCB board through the test fixture of this application to the automated inspection of PCB board, reduce the test procedure of PCB board.

When detecting the PCB, need use the test probe, test probe one end is installed on anchor clamps 5 down, and the other end extends to in circuit storehouse 102 and is in the second circuit board, and the plug connection principle on socket 810 on the first circuit board 81 and the second circuit board is as follows:

controlling the transverse moving cylinder 85 to work, wherein the transverse moving cylinder 85 extends out of the shaft to retract so that a rotating lug 861 of the rotating piece 86 moves away from the limit plate 82, a rotating rod 862 rotates on the rotating lug 861, the rotating lug 861 controls a gear 83 to rotate so that the rack 84 moves away from the limit plate 82, then the first circuit board 81 is pushed to move away from the circuit board, and after the plug is embedded into the jack 810, the transverse moving cylinder 85 stops working; the application discloses sideslip cylinder 85 drives rack 84 through gear 83 and moves along 1 length direction of support body, make socket 810 on the first circuit board 81 and the plug gomphosis on the second circuit board, switch on the test probe return circuit, it is big that this structure has transmission power because of gear 83 rack 84 transmission, it is effectual the gear 83 transmission, long service life, the work is steady, characteristics such as reliability height, effectively avoided because of test probe is more in quantity, only directly promote first circuit board 81 and can not make the problem of a plurality of plugs and socket 810 be connected completely through sideslip cylinder 85, the accuracy that improves the PCB board and detect.

In one or more embodiments, the mounting frame 74 is in a zigzag shape, the supporting column 9 is installed on the upper surface of the horizontal portion below the mounting frame 74, the tray is provided with corresponding installation holes, the tray is installed on the supporting column 9, and the supporting column 9 is sleeved with the springs 11.

Referring to fig. 2, in particular, the supporting column 9 is T-shaped to limit the tray 75 from separating from the mounting frame 74, one end of the spring 11 is connected to the upper surface of the horizontal portion below the mounting frame 74, and the other end is mounted on the lower surface of the tray 75; the PCB is pressed down by the upper clamp 4, when the PCB is connected with the detection probe, the spring 11 is in a compression state, and the support tray floats up and down by the spring 11, so that the PCB is detected, and the PCB detection device is simple in structure and has practicability.

In one or more embodiments, the lower surface of the upper clamp 4 is provided with a positioning pin 12, and the upper surface of the lower clamp 5 is correspondingly provided with a pin seat 13.

Referring to fig. 1 and 2, correspondingly, pin holes 14 are formed in the surface of the tray corresponding to the positioning pins 12, so that the positioning pins 12 can pass through the pin holes 14 in the tray 75 and enter the pin seats 13; each board can be positioned by arranging the positioning pin 12 and the pin boss 13, so that the displacement of parts is avoided, and the qualified rate of product detection is improved.

In one or more embodiments, the line magazine 102 has a baffle 15 mounted on a surface of a side thereof remote from the traverse cylinder 85.

Referring to fig. 1, shelter from circuit storehouse 102 through baffle 15, effectively reduce in debris get into circuit storehouse 102, avoid detecting probe plug and socket 810 to take place the problem that the short circuit influences production then, possess the practicality.

In one or more embodiments, a protective cover 16 is mounted on the top of the frame body 1.

Referring to fig. 1, the protection of the down-pressure cylinder 3 is realized by installing a protection cover 16 on the top of the frame body 1, so that the overall service life of the test fixture is prolonged.

Furthermore, the utility model also provides a rack, this rack have in the above-mentioned arbitrary embodiment test fixture.

Referring to fig. 5, the cabinet includes a cabinet body 20 and a test fixture mounted within the cabinet body 20.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the above embodiments is to let the person skilled in the art understand the contents of the present invention and implement the present invention, which can not limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides a test fixture, is including the support body that has anchor clamps storehouse and circuit storehouse, the anchor clamps storehouse with the circuit storehouse separates through the baffle, its characterized in that, the air cylinder is installed down at the support body top, install anchor clamps on the air cylinder extension shaft down, surface mounting has lower anchor clamps on the baffle, install test probe down on the anchor clamps, install conveying assembly on the wall of anchor clamps storehouse both sides, conveying assembly is located between last anchor clamps and the lower anchor clamps for with the product fortune in or transport out in the anchor clamps storehouse.

2. A test fixture according to claim 1, wherein: the conveying assembly comprises a slide rail and a rodless cylinder which are installed on the inner walls of two sides of the fixture cabin, the rodless cylinder is located above the slide rail, a slide block slides on the slide rail, a mounting frame is installed on the slide block, a tray vertically floats on the mounting frame, and the rodless cylinder controls the tray to enter and exit the fixture cabin through a connecting block.

3. A test fixture according to claim 1, wherein: the test fixture further comprises a detection assembly, and the detection assembly is installed in the line bin and used for enabling or disabling the detection probe loop.

4. A test fixture according to claim 3, wherein: the detecting component comprises a first circuit board and a second circuit board which are parallel to each other, the first circuit board is slidably mounted in the circuit bin, a socket is arranged on the first circuit board, the second circuit board is provided with an installation plug of the detecting probe, limiting plates are mounted on inner walls of two sides of the circuit bin, gears are mounted on the limiting plates in a rotating mode, racks are mounted on the limiting plates, the racks penetrate through the limiting plates and are meshed with the gears, a transverse moving cylinder is mounted on the inner walls of the circuit bin, a rotating part is mounted on a projecting shaft of the transverse moving cylinder, and the rotating part is connected with the gears.

5. A test fixture according to claim 2, wherein: the mounting bracket is the Z style of calligraphy, install the spliced pole on the upper surface of mounting bracket below horizontal part, the mounting hole that corresponds has on the tray, the tray is installed on the spliced pole, the cover is equipped with the spring on the spliced pole.

6. A test fixture according to claim 5, wherein: and the lower surface of the upper clamp is provided with a positioning pin, and the upper surface of the lower clamp is correspondingly provided with a pin seat.

7. A test fixture according to claim 1, wherein: and a baffle is arranged on the surface of one side of the circuit bin, which is far away from the transverse moving cylinder.

8. A test fixture as defined in claim 1, wherein: the safety cover is installed at the top of the frame body.

9. A cabinet, characterized in that: comprising the test fixture of any one of claims 1 to 8.