CN213423395U

CN213423395U - Circuit board detection device

Info

Publication number: CN213423395U
Application number: CN202022455654.7U
Authority: CN
Inventors: 张兆鹏
Original assignee: Beijing Fanhua Hengxing Technology Co ltd; Beijing Zhongke Pansino Measurement & Control Co ltd
Current assignee: Beijing Fanhua Hengxing Technology Co ltd; Beijing Zhongke Pansino Measurement & Control Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-06-11
Anticipated expiration: 2030-10-29

Abstract

The utility model relates to a circuit board detection device, be in including mount table, setting mount table upper portion is used for placing the mount pad of circuit board and installs the tight subassembly of support on the mount table, supports the output of tight subassembly and hangs and establish on the upper portion of mount pad, and can support tightly to be located circuit board on the mount pad, mount pad are including setting up the bottom plate on the mount table, wear to establish probe, lower extreme rigid coupling on the bottom plate are at the spring on bottom plate upper portion and connect the board of placing of spring upper end, the upper end of probe is less than place the upper surface of board, and the probe can wear to establish on placing the board, when butt welding foot and probe upper end support tightly, support the output of tight subassembly and be located the minimum. This application has the effect that makes the leg on the circuit board not fragile.

Description

Circuit board detection device

Technical Field

The application relates to the field of circuit board detection, in particular to a circuit board detection device.

Background

With the rapid development of electronic products, the IP phones are also being updated iteratively and rapidly, and at the same time, the demand of the circuit board is getting larger and larger.

The circuit board is used as a relatively precise component, a plurality of functional modules such as audio, USB and Bluetooth are arranged on the circuit board, and meanwhile, a plurality of welding feet are arranged on the circuit board. In order to ensure that a plurality of functional modules on the circuit board can be normally used, and thus the service performance of the circuit board is ensured, after the circuit board is manufactured, a worker needs to perform functional tests on standard test points, connectors and other welding pins of the functional modules on the circuit board one by one.

When the solder legs are detected, a test circuit is needed to be used for detection, a probe is arranged on the test circuit and is abutted against the solder legs of the circuit board, and the solder legs on the circuit board can be detected after the probe is electrified.

The inventor believes that the solder legs are easily damaged in the process of detecting the circuit board.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the leg damaged easily among the testing process, this application provides a circuit board detection device.

The application provides a circuit board detection device adopts following technical scheme:

the utility model provides a circuit board detection device, is in including mount table, setting mount table upper portion is used for placing the mount pad of circuit board and installs the tight subassembly of support on the mount table, supports the output of tight subassembly and hangs and establish on the upper portion of mount pad, and can support tightly to be located circuit board on the mount pad, mount pad including set up the bottom plate on the mount table, wear to establish probe, lower extreme rigid coupling on the bottom plate are at the spring on bottom plate upper portion and connect place the board of spring upper end, the upper end of probe is less than place the upper surface of board, and the probe can wear to establish on placing the board, and when the tight is supported with the probe upper end to the leg, the output of supporting tight subassembly is located the minimum.

Through adopting above-mentioned technical scheme, control supports tight subassembly and promotes the circuit board downwards and places the board, it can remove to the bottom plate simultaneously to place the board under the supporting role of spring, it compresses the spring to place the process that the board moved down, make the spring have the trend that upwards promotes and place the board, thereby make the leg that is located the circuit board of placing on the board and probe form elastic contact, can keep the conductivity between probe and the leg, the completion detects the functional module on the circuit board, can reduce again that probe and leg excessively support tightly and lead to the possibility that the leg damaged, thereby form reliable protection to the leg, make the leg not fragile.

Preferably, the bottom plate is detachably arranged on the mounting table.

Through adopting above-mentioned technical scheme, change the mount pad whole through changing the bottom plate to can place to detect on the board of placing of adaptation to circuit board of different specifications, equidimension not, reinforcing detection device's suitability.

Preferably, the placing plate is provided with a guide post, the upper end of the guide post is connected to the placing plate, and the lower end of the guide post is movably arranged on the bottom plate in a penetrating mode.

Through adopting above-mentioned technical scheme, it is spacing to placing the board formation, can make and place the board and can stably accomplish the action that rises and descend, still make and place the board and can not rock at will to form the protection to the probe, prolong the life of probe, reduce the possibility that the probe damaged.

Preferably, the upper part of the placing plate is provided with a placing groove matched with the circuit board.

Through adopting above-mentioned technical scheme, correspond the circuit board and place in the standing groove, form spacingly to the circuit board to make the upper end accuracy of leg and probe correspond the setting, when strengthening the protection leg, can also improve detection efficiency.

Preferably, the two opposite sides of the placing plate are respectively provided with a notch.

Through adopting above-mentioned technical scheme, after accomplishing the detection to the circuit board, the staff places the position department of breach with the finger, is convenient for take out the circuit board from the standing groove.

Preferably, the abutting assembly comprises an installation frame arranged on the installation table, a pressing device arranged on the installation frame and a pressing plate connected to the lower end of the pressing device, the pressing plate and the placing plate are correspondingly arranged, and the pressing device can drive the pressing plate to move up and down above the placing plate.

Through adopting above-mentioned technical scheme, the mounting bracket provides comparatively stable installation basis to pushing down the device on the mount table, ensures to push down the device steady operation, can be at the in-process of pushing down the circuit board through the clamp plate that is located on pushing down the device lower extreme for the circuit board atress is more even, reduces the in-process of pushing down the circuit board, appears the circuit board because the atress is uneven and impaired possibility.

Preferably, the mounting bracket includes two stands of lower extreme rigid coupling on the mount table to and the rigid coupling is two mounting panel on the stand, the top of mount table is hung to the mounting panel.

Through adopting above-mentioned technical scheme, mounting bracket simple structure, preparation, simple to operate are convenient for still provide stable installation basis to pushing down the device.

Preferably, the pushing device comprises a connecting rod with one end hinged to the mounting plate, and a connecting plate, a fixed connection plate and a limiting cylinder, wherein the upper end of the connecting rod is hinged to the connecting plate, the connecting plate is arranged on the mounting plate, the axis direction of the connecting plate is parallel to the upright column, the limiting cylinder is arranged on the mounting plate in a penetrating mode, the upper end of the limiting cylinder is hinged to the driving rod at the lower end of the connecting plate, the pressing plate is connected to the lower end of.

Through adopting above-mentioned technical scheme, rotate the connecting rod downwards, the connecting rod drives the actuating lever through articulated connecting plate and reciprocates in spacing section of thick bamboo to can drive the clamp plate and support tightly the circuit board. When the circuit board is detected, the connecting rod is rotated upwards,

preferably, the connecting rod comprises integrated bending forming's linkage segment and handheld section, two sections of linkage segment are articulated with mounting panel, connecting plate respectively, handheld section sets up and keeps away from one of mounting panel at the linkage segment and serves.

By adopting the technical scheme, the method has the advantages that,

preferably, the pressing plate is provided with a fixing column, and the upper end of the fixing column is fixedly connected to the lower surface of the pressing plate.

Through adopting above-mentioned technical scheme, support tightly to the circuit board through the lower extreme of fixed column, can reduce the area of contact with the circuit board for the clamp plate to can form the protection to the circuit board.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the mounting table, the mounting seat and the abutting assembly, the welding leg of the circuit board on the placing plate is in elastic contact with the probe, so that the conductivity between the probe and the welding leg can be kept, the detection of a functional module on the circuit board is completed, and the possibility of damage to the welding leg caused by excessive abutting of the probe and the welding leg can be reduced, so that the welding leg is reliably protected, and the welding leg is not easy to damage;

2. by arranging the guide posts, the placing plate can stably complete ascending and descending actions, and the placing plate cannot shake randomly, so that the probes are protected;

3. through setting up and propping tight subassembly for the circuit board atress is more even, reduces the in-process of pushing down the circuit board, appears the circuit board because the atress is uneven and the possibility of being damaged.

Drawings

FIG. 1 is a schematic structural diagram of a circuit board inspection device;

FIG. 2 is a schematic structural view of the mounting base;

FIG. 3 is a side view of the mount;

fig. 4 is a schematic view of the structure of the highlight mounting and hold-down device.

Description of reference numerals: 1. a work table; 2. an installation table; 3. a mounting seat; 31. a base plate; 32. a probe; 33. a spring; 34. placing the plate; 341. a placement groove; 342. a notch; 35. a guide post; 36. a fixing plate; 4. a mounting frame; 41. a column; 42. mounting a plate; 43. a back plate; 44. a slide bar; 5. a pressing device; 51. a fixed seat; 511. an ear plate; 512. a limiting cylinder; 52. a connecting rod; 521. a connecting section; 522. a handheld section; 53. a connecting plate; 54. a drive rod; 6. pressing a plate; 61. a contactor is provided.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The application discloses a circuit board detection device, refer to fig. 1, including inside workstation 1 of placing components such as electric wire, components and parts, install at 1 upper surface of workstation and inside be hollow mount table 2, four mount pads 3 of demountable installation on 1 upper portion of workstation. The detection device also comprises a tightly-supporting component arranged on the upper part of the mounting table 2, and the tightly-supporting component can reliably support the circuit board on the mounting base 3 respectively to perform stable detection on the circuit board.

The components in the worktable 1 can test the circuit board. The four mounting seats 3 can improve the detection efficiency of the circuit board. The mounting table 2 is internally provided with a circuit board, a relay switch and a wire which are sequentially electrically connected and the wire is electrically connected with components in the workbench 1. The mounting base 3 is provided with a probe 32 for detecting the solder feet of the circuit board, and the lower end of the probe 32 is connected with the circuit board in the mounting table 2. After the upper end of the probe 32 is contacted with the welding leg of the circuit board to be detected, the relay switch is turned on, so that the functional module on the circuit board is detected.

Referring to fig. 2 and 3, the mounting base 3 includes a bottom plate 31 detachably mounted on the mounting table 2, and a fixing plate 36 connected to a lower portion of the bottom plate 31, wherein a circuit board for mounting the probe 32 is disposed on the fixing plate 36. The upper portion of mount pad 3 has been seted up the through-hole, and bottom plate 31 and fixed plate 36 are located the mount pad 3 respectively inside and outside, and both connect through connecting pieces such as bolt to with mount pad 3 demountable installation on mount table 2. The probe 32 sequentially penetrates through the through hole of the mounting base 3 and the bottom plate 31 from bottom to top, so that the probe 32 is stably mounted on the mounting base 3, and the probe 32 can detect a circuit board on the mounting base 3.

The mounting base 3 further comprises a spring 33 with a lower end connected to the upper surface of the bottom plate 31, a placing plate 34 with a lower surface connected to the upper end of the spring 33, and a guide column 35 with an upper end fixedly connected to the placing plate 34 and a lower end penetrating through the bottom plate 31, wherein a through hole for the lower end of the guide column 35 to movably penetrate through is formed in the upper portion of the mounting platform 2.

The springs 33 are provided with two springs and located at two opposite sides of the probes 32, the upper ends of the probes 32 are lower than the upper surface of the placing plate 34, and the placing plate 34 is provided with through holes for the upper ends of the probes 32 to pass through, so that when the circuit board is placed on the upper part of the placing plate 34, the probes 32 can be in contact with the solder feet of the circuit board.

The upper portion of the placing plate 34 is provided with a placing groove 341 adapted to the circuit board, and the circuit board is placed in the placing groove 341, so that the solder tails on the circuit board can accurately contact the probes 32. Two notches 342 communicated with the placing groove 341 are further formed on two opposite sides of the placing plate 34, and after the circuit board is detected, a worker can conveniently take the circuit board off the placing plate 34 through the notches 342.

The lower ends of the guide posts 35 are provided as large head ends so that the placing plate 34 cannot contact the connection with the bottom plate 31. The large end of the wire harness is offset from the fixing plate 36, so that the fixing plate 36 below the bottom plate 31 can be prevented from interfering with the guide post 35. The guide post 35 is provided with four and four guide post 35 evenly distributed at four corners of placing board 34, is supporting tight subassembly effect and is placing board 34 on compressing spring 33 for place board 34 can stably reciprocate.

After the circuit board that will be located on placing board 34 is supported tightly to the subassembly when using, place board 34 and compress spring 33, simultaneously, compressed spring 33 has the trend that upwards promotes and places board 34 to make circuit board and probe 32 form elastic contact, can enough guarantee the conductivity after probe 32 and leg are connected, accomplish to detect the functional module on the circuit board, can also effective control leg not damaged by probe 32.

Referring to fig. 4, the abutting assembly includes a mounting frame 4 mounted on the mounting table 2, four sets of pushing devices 5 disposed on the mounting frame 4, and a pressing plate 6 connected to the lower end of the pushing devices 5, a rod-shaped contactor 61 is fixedly connected to the lower surface of the pressing plate 6, and the lower end of the contactor 61 is suspended above the placing plate 34. The lower end of the hold-down device 5 can bring the platen 6 up and down so that the upper end of the probe 32 abuts the fillet. When the probe 32 abuts against the solder tail, the lower end of the hold-down device 5 is located at the lowest point.

The mounting frame 4 comprises two upright posts 41 fixedly connected to the mounting table 2 at intervals, a mounting plate 42 fixedly connected to the same side of the two upright posts 41, a back plate 43 fixedly connected to one side of the two upright posts 41 away from the mounting plate 42, and a row of slide bars 44 with upper and lower ends respectively fixedly connected to the back plate 43 and the mounting seat 3, wherein the slide bars 44 are divided into four groups, each group has two slide bars, and a group of slide bars 44 correspondingly and movably penetrates through one pressing plate 6. Two uprights 41 are located outermost of the four mounting seats 3. The mounting plate 42 is located on the side of the upright 41 near the mount base 3, and the mounting plate 42 is suspended above the placing plate 34.

Referring to fig. 4, the pressing device 5 includes a fixing seat 51 fixedly connected to one side of the mounting plate 42 facing the mounting seat 3, a pair of ear plates 511 is disposed at an upper end of the fixing seat 51, a limiting cylinder 512 vertically disposed in an axial direction is fixedly connected to the fixing seat 51, and the limiting cylinder 512 is located below the ear plates 511.

The pressing device 5 further comprises a connecting rod 52 with one end hinged between the pair of ear plates 511, a connecting plate 53 with one end hinged on the connecting rod 52, and a driving rod 54 with the upper end hinged on the other end of the connecting plate 53 and movably arranged in the limiting cylinder 512 in a penetrating way, and the lower end of the driving rod 54 is connected with the pressing plate 6.

The connecting rod 52 is composed of a connecting section 521 and a holding section 522, which are integrally bent, one end of the connecting section 521 is connected between the pair of ear plates 511, and when the connecting section 521 is horizontally arranged, the upper end of the holding section 522 is upwardly arranged. One end of the link plate 53 is connected to the other end of the link section 521. The connecting plate 53 is provided with two pieces and is respectively positioned at both sides of the connecting section 521, thereby enhancing the connection stability between the connecting plate 53 and the connecting section 521 and the driving rod 54.

When the circuit board is tested, a worker holds the holding section 522 by hand to rotate the connecting rod 52, the driving rod 54 can only vertically move up and down in the limiting cylinder 512, and the driving rod 54 drives the pressing plate 6 to move down, so that the circuit board is pressed down. When the detection is completed, the hand-held portion is rotated upward so that the contactor 61 is no longer abutted against the circuit board, and the circuit board can be taken down.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A circuit board detection device is characterized in that: including mount table (2), set up mount table (2) upper portion is used for placing mount pad (3) of circuit board and installs the tight subassembly of support on mount table (2), support the output of tight subassembly and hang and establish on the upper portion of mount pad (3), and can support tightly and be located circuit board on mount pad (3), mount pad (3) including setting up bottom plate (31) on mount table (2), wear to establish probe (32) on bottom plate (31), lower extreme rigid coupling spring (33) on bottom plate (31) upper portion and connect place board (34) in spring (33) upper end, the upper end of probe (32) is less than place the upper surface of board (34), and probe (32) can wear to establish on placing board (34), when the welding foot supports tightly with probe (32) upper end, support the output of tight subassembly and be located the minimum.

2. The circuit board inspection device according to claim 1, wherein: the bottom plate (31) is detachably arranged on the mounting table (2).

3. The circuit board inspection device according to claim 1, wherein: the placing plate (34) is provided with a guide post (35), the upper end of the guide post (35) is connected to the placing plate (34), and the lower end of the guide post is movably arranged on the bottom plate (31) in a penetrating mode.

4. A circuit board inspection device according to claim 3, wherein: the upper part of the placing plate (34) is provided with a placing groove (341) matched with the circuit board.

5. The circuit board inspection device of claim 4, wherein: the two opposite sides of the placing plate (34) are respectively provided with a notch (342).

6. The circuit board inspection device according to claim 1, wherein: the abutting assembly comprises an installation rack (4) arranged on the installation platform (2), a pressing device (5) arranged on the installation rack (4) and a pressing plate (6) connected to the lower end of the pressing device (5), the pressing plate (6) is arranged corresponding to the placing plate (34), and the pressing device (5) can drive the pressing plate (6) to move up and down above the placing plate (34).

7. The circuit board inspection device of claim 6, wherein: mounting bracket (4) include two stands (41) of lower extreme rigid coupling on mount table (2) to and the rigid coupling is two mounting panel (42) on stand (41), the top of mount table (2) is hung in mounting panel (42).

8. The circuit board inspection device of claim 7, wherein: the pressing device (5) comprises a connecting rod (52) with one end hinged to a mounting plate (42), and an upper end hinged to a connecting plate (53) on the connecting rod (52), a limiting cylinder (512) fixedly connected to the mounting plate (42) and parallel to the upright column (41) in the axis direction, and a limiting cylinder (512) arranged in the limiting cylinder (512) in a penetrating mode, wherein the upper end of the limiting cylinder is hinged to a driving rod (54) at the lower end of the connecting plate (53), a pressing plate (6) is connected to the lower end of the driving rod (54), and the limiting cylinder (512) is located below the hinged point of the connecting rod (52.

9. The circuit board inspection device of claim 8, wherein: the connecting rod (52) is composed of a connecting section (521) and a handheld section (522), wherein the connecting section (521) is integrally bent, the two sections of the connecting section (521) are hinged to the mounting plate (42) and the connecting plate (53) respectively, and the handheld section (522) is arranged at one end, far away from the mounting plate (42), of the connecting section (521).

10. The circuit board inspection device of claim 6, wherein: the pressing plate (6) is provided with a fixing column, and the upper end of the fixing column is fixedly connected to the lower surface of the pressing plate (6).