CN212722996U

CN212722996U - PCB test fixture

Info

Publication number: CN212722996U
Application number: CN202021529314.8U
Authority: CN
Inventors: 杨坤; 刘轶
Original assignee: Dongguan Weijie Industrial Co ltd
Current assignee: Dongguan Weijie Industrial Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-03-16
Anticipated expiration: 2030-07-29

Abstract

The utility model belongs to the technical field of the technique that the PCB board detected and specifically relates to a PCB board test fixture is related to, it including examine test table and set up in examine the bench place the board, place one side of board articulate in examine the upper surface of test table, it is used for the drive to examine and be provided with on the test table place board pivoted runner assembly, the upper surface of placing the board is provided with the T-slot, the T-slot inslot slides and is connected with two T-shaped blocks, T-shaped block protrusion in T-slot, two the relative surface of T-shaped block all is provided with the grip block, it is used for driving two to place to be provided with on the board the drive assembly that the grip block is close to each other or keeps away from. This application has the effect that the operating personnel of being convenient for overhauls the circuit board.

Description

PCB test fixture

Technical Field

The application relates to the technical field of PCB detection, in particular to a PCB testing clamp.

Background

The PCB is also called a printed circuit board, and is a provider of electrical connection of electronic components. After the PCB is produced, the PCB needs to be detected.

For example, the Chinese patent with the publication number of CN209542420U discloses a PCB detecting table, which comprises a detecting table main body, a placing plate and a central rotating shaft, wherein two drawers are arranged on one side of the detecting table main body, two electric push rods are symmetrically arranged on one side inside the detecting table main body, the placing plate is hinged on one side of the top end of the detecting table main body, a rectangular groove is arranged at the center of the top end of the placing plate, a white lamp tube is arranged at the bottom end inside the rectangular groove, two L-shaped mounting frames are symmetrically arranged on the other side of the top end of the detecting table main body, the central rotating shaft is rotatably connected between the two L-shaped mounting frames, a motor is arranged on one side of one L-shaped mounting frame, the output end of the motor penetrates through one L-shaped mounting frame to be in transmission connection with one end of the central rotating shaft, fixing, all run through between two fixed strips that the position is just right and install fixed pipe, the middle part of three fixed pipe is all rabbeted and is had the detection lamp, and the battery is installed to one side of fixed intraduct, and one side of detecting the platform main part has inlayed and has connect three switch, and two electric putter, motor and white light pipe are all through three switch respectively and power electric connection. Through the inside electric putter that is equipped with of examining test table main part, at the articulated board of placing of cooperation, can change the inclination of placing the board.

With respect to the related art in the above, the inventors consider that there are the following drawbacks: when the staff need overhaul the PCB board of placing on the board, place the board if inclination is too big, the PCB board drops easily to need operating personnel hand to hold the PCB board, the operating personnel of being not convenient for overhauls the maintenance circuit board.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the operating personnel to overhaul the maintenance circuit board, the application provides a PCB board test fixture.

The application provides a PCB board test fixture adopts following technical scheme:

the utility model provides a PCB board test fixture, including detecting the platform and set up in detect the bench place the board, place one side of board articulate in detect the upper surface of platform, it is used for the drive to detect bench be provided with place board pivoted runner assembly, the upper surface of placing the board is provided with the T-shaped groove, the T-shaped inslot slides and is connected with two T-shaped blocks, T-shaped block protrusion in the T-shaped groove, two the relative surface of T-shaped block all is provided with the grip block, it is provided with on the board and is used for driving two the drive assembly that the grip block is close to each other or keeps away from to place the board.

Through adopting above-mentioned technical scheme, operating personnel places the PCB board on placing the board, and two T-shaped blocks of drive assembly drive are close to each other, and two grip blocks on two T-shaped blocks carry out the centre gripping to the PCB board to need not operating personnel and support the PCB board.

Preferably, the rotating assembly comprises an air cylinder arranged on the lower surface of the detection table in the vertical direction, a dovetail groove arranged on the lower surface of the placement plate and a dovetail block connected in the dovetail groove in a sliding mode, and a piston rod of the air cylinder movably penetrates through the side wall of the detection table and is hinged to the side wall of the dovetail block.

Through adopting above-mentioned technical scheme, the piston rod extension of cylinder, the drive is placed the board and is rotated, and places the board and slide in the dovetail when rotating the dovetail piece, makes and places the board and smoothly rotate.

Preferably, the driving assembly comprises two racks arranged in the T-shaped groove along the length direction of the T-shaped groove, two driving gears arranged in the T-shaped groove, and a bearing rod coaxially connected to the driving gears, the two racks are respectively connected to the side walls of the two T-shaped blocks which deviate from each other, the two driving gears are respectively meshed with the two racks, and one end of the bearing rod is rotatably supported on the bottom of the T-shaped groove.

Through adopting above-mentioned technical scheme, operating personnel rotates the carrier bar and drives the rack removal, and the rack drives the T-shaped piece and removes to make two T-shaped pieces keep away from each other and be close to, and the grip block carries out the centre gripping to PCB.

Preferably, place and be provided with two storage tanks in the board, two the storage tank is located respectively the tank bottom in T-slot, the one end activity of carrier bar is run through the tank bottom in T-slot and rotate bear in the tank bottom of storage tank, the carrier bar is located the coaxial turbine that has cup jointed of one end in the storage tank, be provided with the worm in the storage tank, the both ends of worm rotate bear in the both sides wall that the storage tank is relative, place and follow on the board the axial length direction of worm is provided with the dwang, the one end activity of dwang is run through place the lateral wall coaxial coupling of board in the worm.

Through adopting above-mentioned technical scheme, operating personnel rotates the worm and drives the turbine and rotate to make drive gear rotate and drive the rack and remove, make two T-shaped blocks be close to each other and keep away from, when operating personnel is not rotating the worm, utilize the auto-lock characteristic of worm wheel and worm, make the turbine can not take place to rotate, kept the stability of centre gripping.

Preferably, one end of the bearing rod, which is located in the accommodating groove, is coaxially sleeved with a synchronous bevel gear, a transmission rod is arranged in the placing plate along the length direction of the T-shaped groove, two ends of the transmission rod respectively and movably penetrate through the side walls of the two accommodating grooves, two ends of the transmission rod are coaxially sleeved with transmission bevel gears, and the two synchronous bevel gears are respectively meshed with the two transmission bevel gears.

Through adopting above-mentioned technical scheme, operating personnel only need rotate the dwang, can make two drive gears carry out synchronous rotation through the transfer line, has increased the convenience of operation.

Preferably, a hand wheel is arranged at one end, far away from the worm, of the rotating rod.

Through adopting above-mentioned technical scheme, operating personnel is through holding the hand wheel, rotation dwang that can be convenient.

Preferably, a plurality of convex ribs are arranged on the outer peripheral surface of the hand wheel at intervals in the circumferential direction.

Through adopting above-mentioned technical scheme, the bead enables operating personnel not easy emergence when rotating the hand wheel and skids.

Preferably, the opposite surfaces of the clamping plate are provided with elastic rubber pads.

Through adopting above-mentioned technical scheme, the cushion can play the cushioning effect between grip block and PCB board to the elasticity cushion, makes the PCB board be difficult to receive the damage.

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

1. the PCB board is placed on placing the board to operating personnel, and two T-shaped blocks of drive assembly drive are close to each other, and two grip blocks on two T-shaped blocks carry out the centre gripping to the PCB board to need not operating personnel and support the PCB board.

2. The worm is rotated by an operator to drive the worm wheel to rotate, so that the driving gear rotates to drive the rack to move, the two T-shaped blocks are close to and far away from each other, when the worm is not rotated by the operator, the worm wheel cannot rotate by utilizing the self-locking characteristic of the worm wheel and the worm, and the clamping stability is kept.

3. An operator only needs to rotate the rotating rod, and the two driving gears can synchronously rotate through the transmission rod, so that the convenience of operation is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a partial sectional view of a placement board in an embodiment of the present application.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: 1. a detection table; 11. a cylinder; 2. placing the plate; 21. a T-shaped slot; 211. a T-shaped block; 212. a rack; 22. a clamping plate; 23. a dovetail groove; 231. a dovetail block; 24. a carrier bar; 241. a drive gear; 242. a turbine; 243. a synchronizing bevel gear; 25. a containing groove; 251. a worm; 26. rotating the rod; 261. a hand wheel; 262. a rib; 27. a transmission rod; 271. the bevel gear is driven.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses PCB board test fixture. Referring to fig. 1 and 2, the detection device comprises a detection table 1 and a placing plate 2 arranged on the detection table 1, wherein one side of the placing plate 2 is hinged to the upper surface of the detection table 1, and a rotating assembly used for driving the placing plate 2 to rotate is arranged on the detection table 1; specifically, the rotating assembly comprises an air cylinder 11 fixedly mounted on the lower surface of the detection table 1 in the vertical direction, a dovetail groove 23 formed in the lower surface of the placing plate 2 and a dovetail block 231 connected in the dovetail groove 23 in a sliding manner, the dovetail groove 23 is arranged in the direction perpendicular to the hinged side of the placing plate 2, and a piston rod of the air cylinder 11 movably penetrates through the lower surface of the detection table 1 and is hinged to the side wall of the dovetail block 231 facing the detection table 1. The piston rod of the cylinder 11 extends to drive the placing plate 2 to rotate, and the dovetail block 231 slides in the dovetail groove 23 when the placing plate 2 rotates, so that the placing plate 2 can smoothly rotate.

Referring to fig. 2 and 3, a T-shaped groove 21 is formed in the upper surface of the placing plate 2, two ends of the T-shaped groove 21 are arranged in a penetrating manner, two T-shaped blocks 211 are connected in the T-shaped groove 21 in a sliding manner, the T-shaped blocks 211 protrude out of the T-shaped groove 21, clamping plates 22 are welded on the opposite surfaces of the two T-shaped blocks 211, elastic rubber pads are bonded and fixed on the opposite surfaces of the clamping plates 22, and a driving assembly for driving the two clamping plates 22 to approach or leave away from each other is arranged on the placing plate 2; specifically, the driving assembly includes two racks 212 disposed in the T-shaped groove 21 along the length direction of the T-shaped groove 21, two driving gears 241 disposed in the T-shaped groove 21, and the carrying rod 24 coaxially connected to the driving gears 241, the two driving gears 241 are respectively located at two ends of the T-shaped groove 21, the two racks 212 are respectively welded to the side walls of the two T-shaped blocks 211 that are away from each other, and the two driving gears 241 are respectively engaged with the two racks 212; place the inboard two storage tanks 25 of having seted up of board 2, two storage tanks 25 are located the both ends tank bottom of T-slot 21 respectively, the tank bottom of T-slot 21 is run through in the activity of the one end of carrier bar 24 and the tank bottom of rotating and bearing in storage tank 25, the one end coaxial the cover of carrier bar 24 in storage tank 25 has connect turbine 242, be provided with worm 251 in the storage tank 25, the both ends of worm 251 are rotated and are born in the relative both sides wall of storage tank 25, it is provided with dwang 26 to place the axial length direction of board 2 upper edge worm 251, the coaxial fixed connection in worm 251 of the lateral wall of placing board 2 is run through. Meanwhile, one end of the rotating rod 26, which is far away from the worm 251, protrudes out of the side wall of the placing plate 2 and is welded with a hand wheel 261, and a plurality of convex ribs 262 are welded on the outer circumferential surface of the hand wheel 261 at intervals in the circumferential direction. An operator rotates the worm 251 to drive the worm wheel 242 to rotate, so that the driving gear 241 rotates to drive the rack 212 to move, and when the operator does not rotate the worm 251, the worm wheel 242 cannot rotate by utilizing the self-locking characteristic of the worm wheel and the worm 251, and the clamping stability is maintained.

Meanwhile, referring to fig. 2 and 3, one end of the carrier bar 24 located in the accommodating groove 25 is coaxially and fixedly sleeved with a synchronous bevel gear 243, the placing plate 2 is internally provided with a transmission rod 27 along the length direction of the T-shaped groove 21, two ends of the transmission rod 27 respectively and movably penetrate through the side walls of the two accommodating grooves 25, two ends of the transmission rod 27 are coaxially sleeved with transmission bevel gears 271, and the two synchronous bevel gears 243 are respectively meshed with the two transmission bevel gears 271.

The implementation principle of the embodiment of the application is as follows: an operator places the PCB on the placing plate 2, the operator rotates the rotating rod 26, the transmission rod 27 enables the two driving gears 241 to synchronously rotate to drive the rack 212 to move, the rack 212 drives the T-shaped blocks 211 to move, so that the two T-shaped blocks 211 are close to each other, the two clamping plates 22 on the two T-shaped blocks 211 clamp the PCB, and the operator does not need to support the PCB.

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. The utility model provides a PCB board test fixture which characterized in that: including detecting platform (1) and set up in detect placing board (2) on platform (1), place one side of board (2) articulate in detect the upper surface of platform (1), it is used for the drive to detect to be provided with on platform (1) place board (2) pivoted runner assembly, the upper surface of placing board (2) is provided with T-shaped groove (21), T-shaped groove (21) internal slipping is connected with two T-shaped blocks (211), T-shaped block (211) protrusion in T-shaped groove (21), two the relative surface of T-shaped block (211) all is provided with grip block (22), it is provided with on board (2) to be used for driving two drive assembly that grip block (22) are close to each other or keep away from.

2. The PCB board test fixture of claim 1, wherein: the rotating assembly comprises an air cylinder (11) arranged on the lower surface of the detection platform (1) in the vertical direction, a dovetail groove (23) arranged on the lower surface of the placement plate (2) and a dovetail block (231) connected to the dovetail groove (23) in a sliding mode, and a piston rod of the air cylinder (11) movably penetrates through the side wall of the detection platform (1) and is hinged to the side wall of the dovetail block (231).

3. The PCB board test fixture of claim 1, wherein: the driving assembly comprises two racks (212) arranged in the T-shaped groove (21) along the length direction of the T-shaped groove (21), two driving gears (241) arranged in the T-shaped groove (21) and a bearing rod (24) coaxially connected to the driving gears (241), one ends of the two racks (212) are respectively connected to two side walls, away from each other, of the T-shaped block (211), the two driving gears (241) are respectively meshed with the two racks (212), and one end of the bearing rod (24) is rotatably borne on the bottom of the T-shaped groove (21).

4. The PCB board test fixture of claim 3, wherein: place and be provided with two storage tanks (25) in board (2), two storage tank (25) are located respectively the tank bottom of T-slot (21), the one end activity of carrier bar (24) is run through the tank bottom of T-slot (21) and rotate bear in the tank bottom of storage tank (25), carrier bar (24) are located turbine (242) have been cup jointed to the one end in storage tank (25) is coaxial, be provided with worm (251) in storage tank (25), the both ends of worm (251) rotate bear in the both sides wall that storage tank (25) is relative, place and follow on board (2) the axial length direction of worm (251) is provided with dwang (26), the one end activity of dwang (26) is run through place the lateral wall coaxial coupling of board (2) in worm (251).

5. The PCB board test fixture of claim 4, wherein: one end of the bearing rod (24) located in the accommodating groove (25) is coaxially sleeved with a synchronous bevel gear (243), a transmission rod (27) is arranged in the placing plate (2) along the length direction of the T-shaped groove (21), two ends of the transmission rod (27) respectively and movably penetrate through the side walls of the two accommodating grooves (25), two ends of the transmission rod (27) are coaxially sleeved with transmission bevel gears (271), and the two synchronous bevel gears (243) are respectively meshed with the two transmission bevel gears (271).

6. The PCB board test fixture of claim 4, wherein: and a hand wheel (261) is arranged at one end, far away from the worm (251), of the rotating rod (26).

7. The PCB board test fixture of claim 6, wherein: the outer peripheral surface of the hand wheel (261) is provided with a plurality of convex ribs (262) at intervals in the circumferential direction.

8. The PCB board test fixture of claim 1, wherein: the opposite surfaces of the clamping plates (22) are provided with elastic rubber pads.