CN217825577U

CN217825577U - PCB fixing device

Info

Publication number: CN217825577U
Application number: CN202220773153.XU
Authority: CN
Inventors: 刘长松; 刘绚; 邱立恒; 徐福林; 伍晶晶; 刘智
Original assignee: Jiangxi Redboard Technology Co Ltd
Current assignee: Jiangxi Redboard Technology Co Ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-11-15
Anticipated expiration: 2032-04-02

Abstract

A PCB fixing device comprises a bottom frame, a face frame and a plurality of groups of fastening components, wherein each fastening component comprises a fastening stud, a limiting bolt and a spring; the upper end surface of the bottom frame is covered by the face frame, the upper end of the bottom frame and the bottom end of the face frame are both provided with a placing groove, the edges of the bottom frame and the face frame are respectively and correspondingly provided with a plurality of fastening screw holes which penetrate through the bottom frame and the face frame from top to bottom, the side surface of the bottom frame is also provided with a plurality of limiting through grooves, and the limiting through grooves are communicated with the fastening screw holes; the fastening screw bolt penetrates through the fastening screw hole from top to bottom, the limiting bolt and the spring are clamped in the limiting through groove, the spring surrounds the outer side of the limiting bolt, and the limiting bolt can movably stretch out and draw back to limit the fastening screw bolt. The utility model designs a simple clamping structure of the bottom frame and the face frame, so that the edge of the PCB can be completely clamped and fixed, and the problems of warping, deformation, springboard or looseness possibly occurring in the SMT paster process are greatly avoided; the utility model discloses the practicality is strong, has stronger popularization meaning.

Description

PCB fixing device

Technical Field

The utility model relates to a PCB processing equipment especially relates to a PCB fixing device.

Background

The PCB, which is called a printed circuit board in chinese, is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. With the rapid progress of science and technology, electronic products are becoming more and more advanced, and mobile phones, computers, televisions and the like used by people are becoming more and more multifunctional, and the product structures are becoming more and more miniaturized. These electronic products have imposed high-quality, miniaturized, and highly integrated requirements on printed wiring boards.

SMT is a surface assembly technique, which is one of the most popular processing techniques and processes in the electronic assembly industry today. With the popularization of electronic products, the wide use of the PCB and the development of accessories in the manufacturing process of the PCB are vigorous, and the existing PCB clamp often fixes the PCB on the jig tray through the clamp. However, the mode of fixing the PCB on the jig tray by the clip often causes the problems of warping, deformation, bending, springboard or looseness in the process of manufacturing the PCB, and seriously affects the quality and efficiency of the SMT patch.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a PCB fixing apparatus for solving the disadvantages of the prior art.

A PCB fixing device comprises a bottom frame, a face frame and a plurality of groups of fastening components, wherein each fastening component comprises a fastening stud, a limiting bolt and a spring. The face frame lid fits the up end of underframe, the upper end of underframe and the bottom of face frame all are equipped with the standing groove, the edge of underframe and face frame corresponds respectively and is equipped with a plurality of fastening screws that run through from top to bottom, the underframe side still is equipped with a plurality of spacing logical grooves, spacing logical groove with fastening screw intercommunication. The fastening screw bolt penetrates through the fastening screw hole from top to bottom, the limiting bolt and the spring are clamped in the limiting through groove, the spring surrounds the outer side of the limiting bolt, and the limiting bolt can movably stretch out and draw back to limit the fastening screw bolt.

Further, the PCB fixing device also comprises an expansion component. The extension subassembly is including being two gomphosis frames that correspond from top to bottom, two the inboard of gomphosis frame all is equipped with spacing step.

Furthermore, a plurality of layers of limiting steps are arranged on the inner sides of the two embedded frames.

Further, the PCB fixing device also comprises a plurality of auxiliary gaskets. The auxiliary gaskets are designed in an annular shape and can be clamped on the limiting step on the inner side of the embedded frame.

Furthermore, a plurality of auxiliary gaskets can be designed into various sizes and thickness specifications.

Furthermore, the upper ends of the fastening stud and the limiting bolt are provided with handle positions.

To sum up, the utility model relates to a PCB fixing device's beneficial effect lies in: the edge of the PCB can be completely clamped and fixed by designing a simple clamping structure of the bottom frame and the face frame, so that the problems of warping, deformation, bending, springing or looseness possibly caused in the SMT chip mounting process are greatly avoided; the fastening stud is matched with the movable telescopic limiting bolt, so that the clamping and fixing effect between the bottom frame and the face frame is ensured, and the problem that the traditional fixing clamp directly clamps a PCB to cause damage is avoided to a certain extent; designing an extension assembly with multiple layers of steps and auxiliary gaskets with various specifications to ensure that the PCB fixing device can be suitable for fixing PCBs with various sizes, specifications and thicknesses; the fastening stud and the limiting bolt are provided with the handle positions, so that the locking or dismounting operation of the fixing device is simpler and more convenient; the utility model discloses the practicality is strong, has stronger popularization meaning.

Drawings

Fig. 1 is a schematic structural view of a PCB fixing device of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is an enlarged view of the structure of portion A in FIG. 2;

FIG. 4 is a schematic structural view of the draw stud of FIG. 2;

fig. 5 is a schematic structural view of the limit bolt and the spring in fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 to 5, the present invention provides a PCB fixing device 100, which includes a bottom frame 10, a face frame 20 and a plurality of fastening assemblies 30, wherein the fastening assemblies 30 include fastening studs 31, limiting bolts 32 and springs 33.

The upper end face of underframe 10 is fitted to face frame 20 lid, the upper end of underframe 10 and the bottom of face frame 20 all are equipped with standing groove 11, the edge of underframe 10 and face frame 20 corresponds respectively and is equipped with a plurality of fastening screw holes 12 that run through from top to bottom, the underframe 10 side still is equipped with a plurality of spacing logical grooves 21, spacing logical groove 21 with fastening screw hole 12 intercommunication. Face frame 20 and underframe 10 are fixed with the edge complete clamping of PCB, and it is fixed better that traditional local point pressure is compared to fixed effect, can effectively avoid PCB to take place to warp, wane scheduling problem in the course of working.

The fastening stud 31 penetrates through the fastening screw hole 12 from top to bottom, the limiting bolt 32 and the spring 33 are clamped in the limiting through groove 21, the spring 33 surrounds the limiting bolt 32, and the limiting bolt 32 can movably stretch and retract to limit the fastening stud 31. The upper ends of the fastening stud 31 and the limiting bolt 32 are both provided with handle positions 311. When the limit bolt 32 is extended to the inner side of the fastening screw hole 12 by the force of the spring 33, it limits the fastening bolt 31 so that the fastening bolt 31 can only pass through from top to bottom but can not return, thereby clamping and fixing the face frame 20 and the bottom frame 10. The fastening assembly 30 does not directly press-fit and fix the PCB, thereby preventing the PCB from being damaged by the pressure of the fastening assembly 30.

The PCB fixture 100 further includes an expansion assembly 40. The expansion assembly 40 includes two vertically corresponding fitting frames 41, and the inner sides of the two fitting frames 41 are provided with a limiting step 411. The limiting steps 411 on the inner sides of the two embedding frames 41 are provided with a plurality of layers. The limiting step 411 in the embedding frame 41 enables the fixing device to clamp and fix a PCB with a smaller specification, and the universality of the fixing device is greatly improved.

The PCB fixing apparatus 100 further includes a plurality of auxiliary pads 50. The auxiliary gaskets 50 are designed in a ring shape, and the auxiliary gaskets 50 can be clamped on the limiting step 411 on the inner side of the embedding frame 41. A plurality of the auxiliary spacers 50 are designed to have various sizes and thicknesses. The auxiliary pad 50 can be lined on the limit step 411, so that the upper end faces of the PCBs with different thicknesses can be flush with the top end of the limit step 411, and then the upper end faces of the PCBs are fixed by clamping the face frame 20 and the bottom frame 10, and the universality of the fixing device is further improved.

The utility model discloses at the during operation, at first select suitable gomphosis frame 41 respectively block in the standing groove 11 of face frame 20 and underframe 10 according to PCB's length and width size. Then, an appropriate auxiliary gasket 50 is selected according to the thickness of the PCB and is lined on the limit step 411 of the fitting frame 41. The PCB is then stacked on the auxiliary pad 50, and the top frame 20 is covered on the bottom frame 10. And finally, the fastening studs 31 are clamped from top to bottom along the fastening screw holes 12 on the surface frame 20 until the surface frame 20 and the bottom frame 10 are seamlessly adhered and fixed. When the PCB needs to be taken out of the fixing device, the limiting bolt 32 is pulled outwards manually, and the fastening stud 31 is withdrawn from the fastening screw hole 12 from bottom to top.

To sum up, the utility model relates to a PCB fixing device 100's beneficial effect lies in: the edge of the PCB can be completely clamped and fixed by designing a simple clamping structure of the bottom frame 10 and the surface frame 20, and the problems of warping, deformation, bending, springing or looseness possibly occurring in the SMT chip mounting process are greatly avoided; the fastening stud 31 is matched with the movable telescopic limit bolt 32, so that the clamping and fixing effect between the bottom frame 10 and the face frame 20 is ensured, and the problem that the traditional fixing clamp directly clamps a PCB to cause damage is avoided to a certain extent; designing an extension assembly 40 with multiple steps and auxiliary gaskets 50 with multiple specifications so that the PCB fixing device 100 can be suitable for fixing PCBs with multiple sizes, specifications and thicknesses; the fastening stud 31 and the limiting bolt 32 are provided with the handle position 311, so that the locking or dismounting operation of the fixing device is simpler and more convenient; the utility model discloses the practicality is strong, has stronger popularization meaning.

The above-described embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the spirit of the invention, and these are within the scope of the invention. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. The utility model provides a PCB fixing device which characterized in that: the device comprises a bottom frame, a face frame and a plurality of groups of fastening components, wherein each fastening component comprises a fastening stud, a limiting bolt and a spring; the upper end of the bottom frame is covered by the face frame, the upper end of the bottom frame and the bottom end of the face frame are respectively provided with a placing groove, the edges of the bottom frame and the face frame are respectively and correspondingly provided with a plurality of fastening screw holes which penetrate through the bottom frame and the face frame from top to bottom, the side surface of the bottom frame is also provided with a plurality of limiting through grooves, and the limiting through grooves are communicated with the fastening screw holes; the fastening screw bolt penetrates through the fastening screw hole from top to bottom, the limiting bolt and the spring are clamped in the limiting through groove, the spring surrounds the outer side of the limiting bolt, and the limiting bolt can movably stretch out and draw back to limit the fastening screw bolt.

2. The PCB fixture apparatus of claim 1, wherein: still include the extension subassembly, the extension subassembly is including being two gomphosis frames that correspond from top to bottom, two the inboard of gomphosis frame all is equipped with spacing step.

3. The PCB fixture of claim 2, wherein: the limiting steps on the inner sides of the two embedded frames are provided with a plurality of layers.

4. The PCB fixture apparatus of claim 2, wherein: also comprises a plurality of auxiliary gaskets; the auxiliary gaskets are designed in an annular shape and can be clamped on the limiting step on the inner side of the embedded frame.

5. The PCB fixture apparatus of claim 4, wherein: a plurality of auxiliary gaskets can be designed into various sizes and specifications and various thicknesses and specifications.

6. The PCB fixture of claim 1, wherein: the upper ends of the fastening stud and the limiting bolt are provided with handle positions.