CN218946583U

CN218946583U - Prevent PCBA paster deformation frock clamp

Info

Publication number: CN218946583U
Application number: CN202223150115.8U
Authority: CN
Inventors: 彭志明; 黄中文; 张显禄; 苏俊华
Original assignee: Intelligent Automation Equipment Zhuhai Co Ltd
Current assignee: Intelligent Automation Equipment Zhuhai Co Ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-05-02
Anticipated expiration: 2032-11-28

Abstract

The utility model aims to provide the fixture for preventing the PCBA paster from deforming, which has high compatibility, good stability and low cost. The clamp comprises a clamp plate, clamp blocks and a plurality of limiting blocks, wherein the clamp blocks are provided with a plurality of waist-shaped positioning holes, a plurality of limiting holes matched with the waist-shaped positioning holes are formed in the clamp plate along the direction of the waist-shaped positioning holes, the waist-shaped holes and the limiting holes are fixed through positioning screws, the clamp blocks are provided with a plurality of mounting holes, threaded sleeves are arranged in the mounting holes, one ends of the limiting blocks are arranged on the clamp blocks in a rotating mode through the cooperation of spring bolts and the threaded sleeves, the two clamp blocks are provided with pressing plate grooves, and the other ends of the limiting blocks are simultaneously in limiting fit with a printed circuit board through the pressing plate grooves after rotating. The utility model relates to the technical field of PCBA processing clamps.

Description

Prevent PCBA paster deformation frock clamp

Technical Field

The application relates to the technical field of PCBA processing fixtures, in particular to a fixture for preventing PCBA patches from deforming.

Background

PCBA: printed Circuit Board Assembly is the whole process of the finished product obtained by the PCB optical plate through the patch and the plug-in.

PCB: printed Circuit Board refers to printed circuit boards.

SMT is an abbreviation for surface mount technology Surface Mount Technology, known as surface mount or surface mount technology. The circuit mounting technology is characterized in that a non-pin or short-lead surface-mounted component is called SMC/SMD for short, a Chinese-called flaky component is mounted on the surface of a printed circuit board Printed Circuit Board and a PCB) or the surface of other substrates, and the circuit mounting technology is used for welding and assembling by means of reflow soldering or dip soldering and the like.

At present in the SMT processing application of electronic assembly trade, because PCBA size thickness layer number material is different, also can take place a lot of problems when consequently the SMT machine crosses the stove, like PCBA warp, discovers in actual paster that the PCB board warp when crossing the stove appears, leads to material rosin joint such as connector, use frock clamp to be used for fixed PCBA reducible PCBA paster deformation when simultaneously material such as connector also can not the rosin joint. But because the frock clamp of prior art is single, with high costs, the security is low and compatible suitability is poor, consequently can't satisfy the production demand that the present requirement to machining precision constantly improves to can influence the yields, and then influence production quality and production efficiency.

The welding fixture for the PCB is disclosed in a Chinese patent with publication number CN215658685U, wherein an assembly groove is formed in a bottom plate, a welding window is formed in a cover plate, a plurality of pressing strips are arranged in the welding window, the cover plate is connected with the bottom plate, and the assembly groove is positioned in the welding window; the cover plate is connected with the bottom plate through the pressing mechanism, and the PCB is fixed mainly by the pressing mechanism and the pressing strips, but the cost of the fixing mode on the manufacturing of the clamp is high, the practicability is poor, and the fixing of the PCB with multiple sizes cannot be met.

The technical scheme is that a clamp for placing a PCB is arranged on a supporting seat, and the clamp is rotatably connected with the supporting seat; the fixture comprises a limiting plate, a limiting cavity of a hollow structure is arranged in the limiting plate, a supporting edge for supporting the PCB is arranged on the periphery of the limiting cavity, a cover plate capable of overturning around the limiting plate is further arranged, the cover plate can be overturned to be covered with the limiting plate, but the limiting is carried out in the scheme in a covering mode, the limiting cannot be carried out on PCB with different sizes, the compatibility is lower, certain limitation is caused on the PCB needing to be processed, and the space utilization is compact and is not applicable to use on assembly line processing equipment.

Disclosure of Invention

The technical problem that this application will solve is overcoming prior art's not enough, provides a compatibility height, stability are good and low cost prevent PCBA paster deformation frock clamp, solves the frock clamp that current PCBA in-process used more singleness, with high costs, the security is low and compatible adaptability subalternation problem.

The technical scheme adopted by the application is as follows: the application includes anchor clamps board, anchor clamps piece and a plurality of stopper, be provided with a plurality of waist type locating holes on the anchor clamps piece, follow on the anchor clamps board all be provided with on waist type locating hole direction position with a plurality of spacing holes of waist type locating hole cooperation, waist type locating hole with spacing hole passes through positioning bolt to be fixed, be provided with a plurality of mounting holes on the anchor clamps piece, be provided with the thread bush in the mounting hole, the one end of stopper pass through spring bolt with the thread bush cooperatees and rotates the setting on the anchor clamps piece, two all be provided with the clamp plate groove on the anchor clamps piece, the stopper other end through rotatory back with the clamp plate groove simultaneously with the spacing cooperation of printed circuit board.

The fixture comprises a fixture plate, a fixture block, a fixture groove, an external fixture, a plurality of positioning openings, a plurality of positioning grooves and a plurality of positioning grooves, wherein the positioning openings are formed in the fixture plate, the fixture groove is matched with the positioning openings in a limiting mode, and the positioning accuracy and stability of the external fixture to the fixture are improved.

The material returning opening is arranged in the middle of the clamp plate, so that the material of the printed circuit board can be returned conveniently.

The clamping device is characterized in that a cutting surface is arranged on the upper edge of the vertical surface of the clamp block, so that the feeding of printed circuit board materials is facilitated.

The utility model has the beneficial effects that:

the utility model discloses a rotatory earlier the stopper goes fixed PCB board when using to prevent that the PCB board from changing the shape at the paster and leading to connector rosin joint, this scheme has mainly improved its compatibility with the product, and is not only available for a section PCB board, accessible different positions spacing hole with waist formula locating hole carries out the adaptation installation, corresponds the PCB board that is suitable for different sections, and is with low costs moreover, and the practicality is strong. To the PCB board when getting into SMT machine paster discovery PCB board warp and lead to connector pin rosin joint, accessible is adjusted this anchor clamps screw and is adjusted suitable anchor clamps space to fix not unidimensional PCB board, and this application passes through the design of clamp plate groove, reuse a plurality of the stopper is spacing like this can reduce as far as possible to the edge of PCB board singly the area of contact of stopper and PCB board does benefit to whole paster and crosses the process of stove, has reduced the influence when processing the PCB board, reduces the expansion and contraction when the paster crosses the stove, realizes can stabilizing centre gripping PCB board, can not to its effect of warping again, has improved the quality of PCB board paster process greatly to this application low in production cost, simple operation, the compatibility is also very high.

Drawings

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

FIG. 2 is a schematic bottom view of a three-dimensional structure of the present utility model;

FIG. 3 is a schematic view of a portion of the structure of the present utility model;

fig. 4 is an exploded view of a part of the structure of the present utility model.

Detailed Description

For a clearer understanding of the features and advantages of the present application, the present application is further illustrated by way of example with reference to fig. 1-4. In this embodiment, this application includes anchor clamps board 1, anchor clamps piece 2 and a plurality of stopper 3, be provided with a plurality of waist type locating holes 21 on the anchor clamps piece 2, follow on the anchor clamps board 1 all be provided with on the waist type locating hole 21 direction position with a plurality of spacing holes 11 that cooperate of waist type locating hole 21, waist type locating hole 21 with spacing hole 11 passes through positioning bolt 12 to be fixed, be provided with a plurality of mounting holes 22 on the anchor clamps piece 2, be provided with thread bush 23 in the mounting hole 21, the one end of stopper 3 pass through spring bolt 24 with thread bush 23 cooperatees the rotation setting on the anchor clamps piece 2, two all be provided with clamp plate groove 25 on the anchor clamps piece 2, the stopper 3 other end through rotatory back with clamp plate groove 25 simultaneously with the spacing cooperation of printed circuit board.

In this embodiment, the fixture plate 1 is provided with a plurality of positioning openings 13, the fixture block 2 is provided with a fixture groove 26 matched with the positioning openings 13, and the fixture groove 26 is in limit fit with an external fixture, so that stability of the fixture in a processing process is improved, and the external fixture is precisely positioned with the fixture groove 26 through the positioning openings 13, so that a limit effect and assembly compactness are improved, and the fixture is more stable in processing.

In this embodiment, the middle position of the fixture plate 1 is provided with a material returning opening 14, so that after the processing is finished, the material returning opening is convenient to contact with the limiting effect, and the quick material removing is realized by jacking up of a mechanism below the fixture plate, so that the processing efficiency is improved.

In this embodiment, the upper edge of the vertical surface of the clamp block 2 of the pressing plate groove 25 is provided with a tangential surface 251, so as to facilitate placement of PCB materials and prevent the occurrence of clamping grooves or placement difficulties.

The working principle of the application is as follows:

when the fixture is used, firstly, the limiting holes 11 and the waist-shaped positioning holes 21 at different positions are adjusted to be installed in an adapting mode, so that different types of PCB boards are correspondingly applied, the printed circuit board materials are required to be slid into the pressing plate grooves 25 of the two fixture blocks 2 from the tangential surfaces 251, the limiting blocks 3 are not fixedly rotated to one sides of the printed circuit board materials to be limited, the spring bolts 24 are screwed down, the limiting blocks 3 clamp the printed circuit board materials in the pressing plate grooves 25, then the assembled fixture blocks 1 are placed on an external fixture, the positioning openings 13 and the fixture grooves 26 are all matched to be positioned on the external fixture, and the effects of adapting products of various sizes, improving efficiency and reducing fixture cost are achieved.

While the examples of this application are described in terms of practical aspects, they are not to be construed as limiting the meaning of this application, and modifications to the embodiments and combinations with other aspects thereof will be apparent to those skilled in the art from this description.

Claims

1. The utility model provides a prevent PCBA paster frock clamp that warp, it includes anchor clamps board (1), anchor clamps piece (2) and a plurality of stopper (3), a serial communication port, be provided with a plurality of waist type locating hole (21) on anchor clamps piece (2), follow on anchor clamps board (1) all be provided with on waist type locating hole (21) direction position with a plurality of spacing holes (11) of cooperation of waist type locating hole (21), waist type locating hole (21) with spacing hole (11) are fixed through locating bolt (12), be provided with a plurality of mounting holes (22) on anchor clamps piece (2), be provided with thread bush (23) in mounting hole (22), one end of stopper (3) pass through spring bolt (24) with thread bush (23) cooperate to rotate and set up on anchor clamps piece (2), two all be provided with clamp plate groove (25) on anchor clamps piece (2), the stopper (3) other end through rotatory back with clamp plate groove (25) are spacing cooperation with the printed circuit board simultaneously.

2. A fixture for preventing deformation of a PCBA patch according to claim 1, characterized in that a plurality of positioning openings (13) are provided on the fixture plate (1), and a fixture groove (26) matched with the positioning openings (13) is provided on the fixture block (2), and the fixture groove (26) is in limit fit with an external fixture.

3. A tool clamp for preventing deformation of a PCBA patch according to claim 1, wherein a material returning opening (14) is provided in the middle of the clamp plate (1).

4. A tool clamp for preventing deformation of a PCBA patch according to claim 1, characterized in that a tangential plane (251) is provided on the platen groove (25) along the vertical plane edge of the clamp block (2).