CN218397714U

CN218397714U - PCB detects and uses fixed tool

Info

Publication number: CN218397714U
Application number: CN202221827645.9U
Authority: CN
Inventors: 张振清
Original assignee: Shenzhen Vicretek Electronic Technology Co ltd
Current assignee: Shenzhen Vicretek Electronic Technology Co ltd
Priority date: 2022-07-16
Filing date: 2022-07-16
Publication date: 2023-01-31
Anticipated expiration: 2032-07-16

Abstract

The utility model discloses a PCB detects uses fixed tool, including workstation and plummer, the lower terminal surface of workstation is connected on the plummer, the bottom plate both ends are equipped with two first spacing posts respectively, drive mechanism arranges the up end of bottom plate in, the spacing post of second is arranged in on the bottom plate, the lower terminal surface of bottom plate is arranged in to the motor, motor output shaft one end is connected with drive mechanism, first through-hole has been seted up on the bottom plate, four crisscross arrangements of arm lock arrange in on the bottom plate, arm lock one end is equipped with the locating piece, be equipped with the spout in the arm lock, first spacing post is established to the spout cover, one side of the arm lock other end is equipped with tooth, tooth is connected with the drive mechanism cooperation, the opposite side and the spacing post sliding contact of second of the arm lock other end, the lower extreme bread of apron wraps up in double-layered arm, the lug fixed connection in the up terminal surface of bottom plate of apron, the second through-hole has been seted up on the apron, the air cock runs through first through-hole and second through-hole in proper order. The utility model provides a PCB detects uses fixed tool, the centre gripping of compatible not unidimensional PCB board, reduce cost.

Description

PCB detects and uses fixed tool

Technical Field

The utility model relates to a PCB board detects technical field, especially relates to a PCB detects uses fixed tool.

Background

The PCB board need detect its quality after production, and partial PCB board detects adopts the mode of artifical measuring, and in the testing process, generally use anchor clamps to fix the PCB board, and anchor clamps are the customization mostly among the prior art, only can detect the board of same kind of size, and the PCB board that detects other sizes then needs the different anchor clamps of customization, and compatibility is poor, has improved the anchor clamps cost of making corresponding PCB board size.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PCB detects uses fixed tool, the centre gripping of compatible not unidimensional PCB board, reduce cost.

The utility model discloses a PCB detects uses fixed tool adopts technical scheme is including workstation and plummer, the workstation includes bottom plate, four arm lock, apron and a plurality of air cock. The lower terminal surface of bottom plate is connected on the plummer, the bottom plate includes four first spacing posts, drive mechanism, the spacing post of second and motor, the bottom plate both ends are equipped with two first spacing posts respectively, drive mechanism arranges the up end of bottom plate in, four the spacing post of second is arranged in on the bottom plate, and is encircleed drive mechanism arranges, the lower terminal surface of bottom plate is arranged in to the motor, motor output shaft one end is connected with drive mechanism, a plurality of first through-holes have been seted up on the bottom plate. The four clamp arms are arranged on the bottom plate in a staggered mode, a positioning block is arranged at one end of each clamp arm, a sliding groove is formed in each clamp arm and is close to the positioning block, a first limiting column is sleeved with the sliding groove and is in sliding contact with the first limiting column, tooth teeth are arranged on one side of the other end of each clamp arm and are connected with a transmission mechanism in a matched mode, and the other side of the other end of each clamp arm is in sliding contact with a second limiting column. The improved structure is characterized in that protruding blocks are arranged on two sides of the lower end face of the cover plate, the lower end face of the cover plate is wrapped by the clamping arms, the protruding blocks of the cover plate are fixedly connected to the upper end face of the bottom plate, a plurality of second through holes are formed in the cover plate, and the first through holes and the second through holes are coaxial. The air tap penetrates through the first through hole and the second through hole in sequence.

Preferably, the transmission mechanism comprises a first gear, a second gear and a transmission belt, the first gear is rotatably connected to the center of the bottom plate, the top or the middle of the side surface of the first gear is connected with the teeth on the clamping arm in a matching manner, the second gear is fixedly connected with the output shaft of the motor, the transmission belt is sleeved on the bottom of the side surface of the first gear, and the transmission belt is sleeved on the side surface of the second gear.

Preferably, the two opposite clamping arms are a group of clamping arms, and one group of clamping arms is stacked on the other group of clamping arms.

Preferably, the plummer includes base station, roating seat, first piece and the second piece that links up, the roating seat is arranged in on the base station, the one end and the roating seat top swivelling joint of first piece that links up, the one end and the other end swivelling joint of first piece that links up of second piece that links up, the other end and the base bottom of second piece that link up are connected.

Preferably, a plurality of fasteners are arranged on the rotating seat and the second connecting block, and the fasteners are close to the first connecting block.

As the preferred scheme, the second linking block is provided with a connecting column, a connecting part is arranged below the bottom plate, and the connecting column is fixedly connected to the connecting part.

The utility model discloses a PCB detects with fixed tool's beneficial effect is:

four clamping arms which are arranged in a staggered mode are arranged in the base plate, the clamping arms are connected with the transmission mechanism in a matched mode, positioning blocks are arranged on the clamping arms, the motor is connected with the transmission mechanism, the cover plate wraps the clamping arms and is fixedly connected with the base plate, and the base plate is arranged on the bearing table. When detecting the PCB board, place the PCB board on the apron, the motor drives actuating mechanism and arm lock shrink in proper order and removes, makes the arm lock can be according to the position that the size adjustment of PCB board shrinks, the not unidimensional PCB board of centre gripping. The plurality of air nozzles are arranged at the bottom of the bottom plate and penetrate through the first through hole in the bottom plate and the second through hole in the cover plate. When placing PCB on the apron, the outside cylinder that the air cock is connected breathes in, and the PCB board is adsorbed to the air cock for centre gripping PCB board is more stable. When the size of the clamped PCB is smaller than the clamping size of the clamping arm, the small-size PCB is adsorbed by the air nozzle, and the PCB with smaller size is adsorbed and detected. The PCB detecting device has the advantages that the PCB of various sizes can be detected by the same clamp, and the problem of cost of manufacturing the corresponding clamp according to the size of the PCB is solved.

Drawings

Fig. 1 is the utility model relates to a PCB detects with fixed tool's schematic structure view.

Fig. 2 is the utility model relates to a PCB detects with fixed tool's assembly schematic diagram.

Fig. 3 is a schematic structural view of a worktable portion of the fixing jig for PCB detection of the present invention.

Fig. 4 is a schematic view of the working table assembly of the fixing jig for PCB detection.

Fig. 5 is a schematic view of the bearing seat structure of the fixing jig for PCB detection.

Fig. 6 is an assembly diagram of the bearing seat of the fixing jig for PCB detection.

Detailed Description

The invention will be further elucidated and described with reference to the following embodiments and drawings in which:

please refer to fig. 1-4.

Comprising a work table 11 and a carrier table 21.

The worktable 11 includes a base plate 12, four clamp arms 14, a cover plate 15 and a plurality of air nozzles 16.

The bottom plate 12 comprises four first limiting columns 121, a transmission mechanism 13, a second limiting column 134 and a motor 135, two first limiting columns 121 are respectively arranged at two ends of the bottom plate 12, and the transmission mechanism 13 comprises a first gear 131, a second gear 132 and a transmission belt 133. The first gear 131 is rotatably connected to the center of the bottom plate 12, the motor 135 is disposed on the lower end surface of the bottom plate 12, a torsion detector is sleeved on one end of an output shaft of the motor 135, and the second gear 132 is fixedly connected to the torsion detector. The transmission belt 133 is sleeved at the bottom of the side surface of the first gear 131, and the transmission belt 133 is sleeved at the side surface of the second gear 132. The four second limiting columns 134 are disposed on the bottom plate 12 and arranged around the first gear 131. The bottom plate 12 is provided with a plurality of first through holes 123, and preferably four first through holes 123 are provided in the embodiment. The bottom plate 12 has a connecting portion 124 formed on a lower end surface thereof.

The four clamping arms 14 are arranged on the base plate 12 in a staggered manner, two opposite clamping arms 14 form a group of clamping arms 14, and one group of clamping arms 14 is stacked on the other group of clamping arms 14. One end of the clamping arm 14 is provided with a positioning block 141, the clamping arm 14 is provided with a sliding chute 142, the sliding chute 142 is close to the positioning block 141, the sliding chute 142 on the clamping arm 14 is sleeved on the outer side of the adjacent first limiting column 121, and the sliding chute 142 on the clamping arm 14 is in sliding contact with the first limiting column 121. One side of the other end of the clamping arm 14 is provided with teeth 143, the teeth 143 are connected with the first gear 131 in a matching manner, and the other side of the other end of the clamping arm 14 is in sliding contact with the second limiting column 134. The bottom of the first limiting column 121 slidably connected to the sliding slot 142 of the top set of clamping arms 14 is sleeved with a gasket 122, and the gasket 122 enables the top set of clamping arms 14 to move on the first gear 131 in parallel.

Both sides of the lower end face of the cover plate 15 are provided with a projection 151, the lower end face of the cover plate 15 wraps the clamping arm 14, the projection 151 of the cover plate 15 is fixedly connected to the upper end face of the base plate 12, the cover plate 15 is provided with a plurality of second through holes 152, four second through holes 152 are preferably selected in the embodiment, and the first through hole 123 and the second through holes 152 are coaxial.

Preferably, four air nozzles 16 are provided in this embodiment, the air nozzles 16 are fixedly connected to the lower end surface of the base, the air nozzles 16 are coaxial with the first through hole 123, one end of the suction head of the air nozzle 16 sequentially penetrates through the first through hole 123 and the second through hole 152, and the suction head of the air nozzle 16 is parallel to the upper end surface of the cover plate 15.

When the clamping arm 14 is used, a PCB is placed on the cover plate 15, the motor 135 sequentially drives the second gear 132, the transmission belt 133, the first gear 131 and the clamping arm 14 to move, so that the four clamping arms 14 are contracted together until the positioning block 141 of the clamping arm 14 clamps the PCB, and when the torque detector detects a reaction force applied to the clamping arm 14 after the clamping arm 14 clamps the PCB during contraction, the motor 135 stops operating. When the detected size of the PCB is smaller than the minimum stroke of the contraction of the clamping arms 14, the PCB is placed on the cover plate 15, and the air nozzle 16 is used for adsorbing the PCB, so that the workbench 11 can clamp and detect the PCB with a smaller size.

Please refer to fig. 1-2 and fig. 5-6.

The carrier 21 includes a base 211, a rotary base 212, a first engagement block 213, and a second engagement block 215.

The rotating base 212 is disposed on the base 211, one end of the first connecting block 213 is disposed on the top of the rotating base 212, the first screw 214 passes through the rotating base 212 and is connected to a side surface of one end of the first connecting block 213, and the first connecting block 213 can rotate at a certain angle with the first screw 214 as an axis.

One end of the second engaging block 215 is disposed at the other end of the first engaging block 213, the second screw 216 passes through the second engaging block 215 and is connected to a side surface of the other end of the first engaging block 213, and the first engaging block 213 can rotate at a certain angle with the first screw 214 as an axis. The other end of the second connecting block 215 is provided with a connecting post 217, and the connecting post 217 is connected with the connecting part 124 in a matching way

The first screw 214 is perpendicular to the second screw 216, and when the rotation angles of the first engagement block 213 and the second engagement block 215 are adjusted, the table 11 fixed to the second engagement block 215 can be tilted right and left and back and forth in cooperation with the detection of the angle.

The swivel mount and the second engagement block 215 are provided with fasteners 218, and the fasteners 218 are adjacent to the first engagement block 213. When the inclination angle of the table 11 is adjusted, the fastening member 218 is locked to abut against the first engagement block 213, so that the table 11 can be stationary at the current inclination angle.

The utility model provides a PCB detects uses fixed tool is equipped with four crisscross arm lock of arranging in the bottom plate, and the arm lock is connected with the drive mechanism cooperation, is equipped with the locating piece in the arm lock, and the motor is connected with drive mechanism, and apron parcel arm lock and bottom plate fixed connection, the plummer is arranged in to the bottom plate. When detecting the PCB board, place the PCB board on the apron, the motor drives actuating mechanism and arm lock shrink in proper order and removes, makes the arm lock can be according to the position that the dimensional adjustment of PCB contracted, the not unidimensional PCB board of centre gripping. The plurality of air nozzles are arranged at the bottom of the bottom plate and penetrate through the first through hole in the bottom plate and the second through hole in the cover plate. When placing PCB on the apron, the outside cylinder that the air cock is connected breathes in, and the PCB board is adsorbed to the air cock for centre gripping PCB board is more stable. When the size of the clamped PCB is smaller than the clamping size of the clamping arm, the small-size PCB is adsorbed by the air nozzle, and the PCB with smaller size is adsorbed and detected. The PCB with various sizes can be detected by the same clamp, and the problem of cost for manufacturing the clamp with the corresponding size according to the size of the PCB is solved.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A fixing jig for PCB detection is characterized by comprising a workbench and a bearing table, wherein the workbench comprises a bottom plate, four clamping arms, a cover plate and a plurality of air nozzles;

the lower end face of the bottom plate is connected to the bearing table, the bottom plate comprises four first limiting columns, a transmission mechanism, four second limiting columns and a motor, two first limiting columns are arranged at two ends of the bottom plate respectively, the transmission mechanism is arranged on the upper end face of the bottom plate, the four second limiting columns are arranged on the bottom plate and distributed around the transmission mechanism, the motor is arranged on the lower end face of the bottom plate, one end of an output shaft of the motor is connected with the transmission mechanism, and a plurality of first through holes are formed in the bottom plate;

the four clamping arms are arranged on the bottom plate in a staggered mode, one end of each clamping arm is provided with a positioning block, each clamping arm is provided with a sliding chute, each sliding chute is close to the corresponding positioning block, each sliding chute is sleeved with a first limiting column, each sliding chute is in sliding contact with the corresponding first limiting column, one side of the other end of each clamping arm is provided with a tooth, each tooth is connected with the corresponding transmission mechanism in a matched mode, and the other side of the other end of each clamping arm is in sliding contact with the corresponding second limiting column;

the two sides of the lower end face of the cover plate are both provided with a convex block, the lower end face of the cover plate is wrapped by the clamping arm, the convex block of the cover plate is fixedly connected to the upper end face of the bottom plate, the cover plate is provided with a plurality of second through holes, and the first through holes and the second through holes are coaxial;

the air tap penetrates through the first through hole and the second through hole in sequence.

2. The fixing jig for PCB detection as claimed in claim 1, wherein the transmission mechanism includes a first gear, a second gear and a transmission belt, the first gear is rotatably connected to a center of the bottom plate, a top or a middle portion of a side surface of the first gear is in fit connection with teeth on the clamping arm, the second gear is fixedly connected to an output shaft of the motor, the transmission belt is sleeved on a bottom portion of a side surface of the first gear, and the transmission belt is sleeved on a side surface of the second gear.

3. The fixing jig for PCB inspection according to claim 2, wherein the two opposing clamping arms are a set of clamping arms, and one set of clamping arms is stacked on the other set of clamping arms.

4. The fixture according to any one of claims 1 to 3, wherein the carrier comprises a base, a rotary base, a first connecting block and a second connecting block, the rotary base is disposed on the base, one end of the first connecting block is rotatably connected to a top of the rotary base, one end of the second connecting block is rotatably connected to the other end of the first connecting block, and the other end of the second connecting block is connected to a bottom of the base.

5. The fixing jig for PCB inspection as claimed in claim 4, wherein a plurality of fastening members are provided on each of the rotary base and the second connection block, the fastening members being adjacent to the first connection block.

6. The fixing jig for PCB inspection according to claim 5, wherein the second connecting block is provided with a connecting post, the bottom plate is provided with a connecting portion, and the connecting post is fixedly connected to the connecting portion.