CN212945550U

CN212945550U - PCB drilling positioning jig

Info

Publication number: CN212945550U
Application number: CN202021742819.2U
Authority: CN
Inventors: 苏成; 李伟娥
Original assignee: Shenzhen Zhuoke Technology Co ltd
Current assignee: Shenzhen Zhuoke Technology Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-04-13
Anticipated expiration: 2030-08-20

Abstract

The utility model belongs to the technical field of a jig, and discloses a PCB drilling and positioning jig, which comprises a bottom plate and a PCB, wherein the PCB is positioned above the bottom plate, a silica gel cushion is arranged between the PCB and the bottom plate, a positioning pin penetrates between the silica gel cushion and the PCB, a positioning pin hole matched with the positioning pin is arranged at the top of the bottom plate, first through holes are arranged at the joints of the silica gel cushion and the PCB and the positioning pin, an anti-reverse pin hole is arranged at one side of the top of the bottom plate close to the positioning pin hole, an anti-reverse pin mounting post is arranged inside the anti-reverse pin hole, through the matching of a fixture block, a clamping groove and a limiting plate, four limiting plates can be respectively abutted against four sides of the PCB, thereby limiting and fixing the side edges of the PCB, further strengthening the stability of the PCB, and simultaneously protecting the side walls of the PCB from abrasion through a rubber pad, the use effect of the device is improved.

Description

PCB drilling positioning jig

Technical Field

The utility model belongs to the technical field of the tool, concretely relates to PCB drilling positioning jig.

Background

The jig is a tool for carpenters, ironmen, pincers, machines, electric controls and other handicrafts, mainly used as a tool for assisting in controlling positions or actions (or both), can be divided into three types, namely a process assembly type jig, a project test type jig and a circuit board test type jig, and is widely used before the industrial era, including mechanical jigs, woodworking jigs, welding jigs, jewelry jigs and other fields.

In chinese patent with patent number CN201621473219.4, a PCB drilling positioning jig is disclosed, the device is through the mode that adopts the shop bolt in order to realize the quick location of PCB, nevertheless carry out spacing fixed to the side of PCB, stability is general, easy rotatory skew of in-process PCB at drilling, influence the result of use of tool, in addition, the device is through filling up one deck buffer layer between PCB and bottom plate, in order to reduce the extrusion that receives when the drilling of PCB, but actual decompression effect is relatively poor, PCB atress excessively easily sends out bending deformation, the disability rate is high, influence processingquality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PCB drilling positioning jig to the side to the PCB board that proposes in solving above-mentioned background art carries out spacing fixed, and the relatively poor problem of decompression effect of PCB board.

In order to achieve the above object, the utility model provides a following technical scheme: a PCB drilling positioning jig comprises a bottom plate and a PCB, wherein the PCB is positioned above the bottom plate, a silica gel cushion is arranged between the PCB and the bottom plate, a positioning pin penetrates through the silica gel cushion and the PCB, a positioning pin hole matched with the positioning pin is formed in the top of the bottom plate, first through holes are formed in the joints of the silica gel cushion and the PCB and the positioning pin, an anti-reverse pin hole is formed in one side, close to the positioning pin hole, of the top of the bottom plate, an anti-reverse pin mounting post is mounted in the anti-reverse pin hole, an anti-reverse pin shrinkage post is fixed to the top of the anti-reverse pin mounting post, second through holes are formed in the tops, close to the upper side of the anti-reverse pin shrinkage post, of the top of the bottom plate, a limiting plate is mounted on one side, close to the PCB, of four ends of the top of the bottom plate, and a clamping block is fixed to the bottom end of, the top of bottom plate is seted up with fixture block assorted draw-in groove, the rubber pad is installed to one side that the fixture block is close to the PCB board.

Preferably, the top of bottom plate is close to the below of silica gel cushion and has seted up the chamber groove, the spring is installed to the inside bottom in chamber groove, the top of spring is connected with the fixed column, the fixed column extends to the outside one end of bottom plate and is connected with the silica gel cushion.

Preferably, the number of the positioning pins is two, and the inner diameters of the second through hole and the anti-reverse pin hole are the same.

Preferably, the inner wall of the clamping groove is provided with a backing plate, and the outer wall of the backing plate is provided with an anti-slip groove.

Preferably, the anti-reverse pin contraction column and the anti-reverse pin installation column are both cylindrical, and the diameter of the anti-reverse pin contraction column is smaller than that of the anti-reverse pin installation column.

Preferably, the bottom of the bottom plate is provided with a damping plate, and the bottom of the damping plate is provided with a bulge.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a cooperation of fixture block, draw-in groove and limiting plate can support four sides at the PCB board respectively with four limiting plates to can carry out spacing fixed to the side of PCB board, further strengthen the stability of PCB board, can protect the lateral wall of PCB board through the rubber pad simultaneously and make it not receive wearing and tearing, improve the result of use of device.

(2) The utility model discloses a silica gel cushion can reduce the rigid contact between PCB board and the bottom plate, can improve the conjugation degree of silica gel cushion and PCB board simultaneously, under the cooperation of fixed column and spring, can change the effectual absorbing effect of buffering that plays of hole in-process at the PCB board to the compressive capacity of PCB board has been strengthened greatly, has prevented that the excessive bending deformation that takes place of PCB board atress, has reduced the disability rate, has improved the processingquality of PCB board.

Drawings

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

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

in the figure: 1. a silica gel cushion; 2. a first through hole; 3. fixing a column; 4. anti-pin retraction posts; 5. a second through hole; 6. a PCB board; 7. a rubber pad; 8. a clamping block; 9. a card slot; 10. a cavity groove; 11. anti-reverse pin holes; 12. anti-reverse pin mounting posts; 13. positioning a pin; 14. positioning a pin hole; 15. a base plate; 16. a spring; 17. and a limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: a PCB drilling positioning jig comprises a bottom plate 15 and a PCB 6, wherein the PCB 6 is positioned above the bottom plate 15, a silica gel cushion 1 is arranged between the PCB 6 and the bottom plate 15, a positioning pin 13 penetrates through the silica gel cushion 1 and the PCB 6, a positioning pin hole 14 matched with the positioning pin 13 is formed in the top of the bottom plate 15, first through holes 2 are formed in the joints of the silica gel cushion 1, the PCB 6 and the positioning pin 13, an anti-reverse pin hole 11 is formed in one side, close to the positioning pin hole 14, of the top of the bottom plate 15, an anti-reverse pin mounting column 12 is arranged in the anti-reverse pin hole 11, an anti-reverse pin contraction column 4 is fixed at the top of the anti-reverse pin mounting column 12, second through holes 5 are formed in the insides of the silica gel cushion 1 and the PCB 6 and close to the upper side of the anti-reverse pin contraction column 4, a limiting plate 17 is arranged on one side, close to the PCB 6, of the top of, limiting plate 17's bottom mounting has fixture block 8, bottom plate 15's top seted up with fixture block 8 assorted draw-in groove 9, fixture block 8 is close to one side of PCB board 6 and installs rubber pad 7, through inserting fixture block 8 in draw-in groove 9, can fix four limiting plates 17 respectively at four ends of bottom plate 15's top, thereby support four sides at PCB board 6 respectively with four limiting plates 17, and then can carry out spacing fixed to PCB board 6's side, PCB board 6's stability has further been strengthened, the lateral wall that can protect PCB board 6 simultaneously through rubber pad 7 makes it not receive wearing and tearing, the result of use of device has been improved.

Further, chamber groove 10 has been seted up near the below of silica gel cushion 1 on the top of bottom plate 15, spring 16 is installed to the inside bottom in chamber groove 10, the top of spring 16 is connected with fixed column 3, fixed column 3 extends to bottom plate 15 outside one end and is connected with silica gel cushion 1, can reduce the rigid contact between PCB board 6 and the bottom plate 15 through silica gel cushion 1, simultaneously can make its bottom with PCB board 6 hug closely together through the elastic action of silica gel cushion 1, thereby can improve the joint degree of silica gel cushion 1 and PCB board 6, under the cooperation of fixed column 3 and spring 16, can be at the effectual cushioning effect that plays of PCB board 6 trompil in-process, thereby the compressive capacity of PCB board 6 has been strengthened greatly, PCB board 6 atress excessively takes place bending deformation, the disability rate has been reduced, the processingquality of PCB board 6 has been improved.

Further, the number of the positioning pins 13 is two, and the inner diameters of the second through hole 5 and the anti-reverse pin hole 11 are the same.

Specifically, the backing plate is installed to the inner wall of draw-in groove 9, and the backing plate plays firm effect, and the antiskid groove has been seted up to the outer wall of backing plate.

Specifically, the anti-reverse pin contraction column 4 and the anti-reverse pin installation column 12 are both cylindrical, the diameter of the anti-reverse pin contraction column 4 is smaller than that of the anti-reverse pin installation column 12, and the phenomenon of short defects in an eccentric hole during drilling of the PCB 6 can be reduced through matching of the anti-reverse pin contraction column 4 and the anti-reverse pin installation column 12.

Specifically, the bottom of the bottom plate 15 is mounted with a shock absorbing plate having a shock absorbing function, and the bottom of the shock absorbing plate is provided with a protrusion.

The utility model discloses a theory of operation and use flow: when the utility model is used, under the action of the positioning pin 13, the anti-reverse pin shrinkage column 4 and the anti-reverse pin mounting column 12, the PCB 6 can be quickly positioned on the bottom plate 15, then the four limit plates 17 can be respectively fixed at the four ends of the top of the bottom plate 15 by inserting the fixture block 8 into the clamping groove 9, so that the four limit plates 17 are respectively supported against the four sides of the PCB 6, the side edge of the PCB 6 can be limited and fixed, the stability of the PCB 6 is further enhanced, meanwhile, the side wall of the PCB 6 can be protected from abrasion by the rubber pad 7, in addition, the rigid contact between the PCB 6 and the bottom plate 15 can be reduced by the silica gel cushion 1, and the rigid contact can be tightly attached to the bottom of the PCB 6 by the elastic action of the silica gel cushion 1, thereby the bonding strength of the silica gel cushion 1 and the PCB 6 can be improved, under the matching of the fixing column 3 and the spring 16, can change the effectual absorbing effect that plays of hole in-process at PCB board 6 to strengthen PCB board 6's compressive capacity greatly, prevented that PCB board 6 atress from excessively taking place bending deformation, reduced the disability rate, improved PCB board 6's processingquality.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a PCB drilling positioning jig which characterized in that: including bottom plate (15) and PCB board (6), PCB board (6) are located the top of bottom plate (15), and install silica gel cushion (1) between PCB board (6) and bottom plate (15), it has locating pin (13) to run through between silica gel cushion (1) and PCB board (6), the top of bottom plate (15) is seted up and is fixed a position pin hole (14) with locating pin (13) assorted, first through-hole (2) have all been seted up with the junction of locating pin (13) in silica gel cushion (1) and PCB board (6), the top of bottom plate (15) is close to one side of locating pin hole (14) and has been seted up and has been prevented anti-reverse pin hole (11), the internally mounted of reverse pin hole (11) has anti-reverse pin erection column (12), the top of preventing reverse pin erection column (12) is fixed with prevents reverse pin contraction column (4), the inside of silica gel cushion (1) and PCB board (6) is close to the top of preventing reverse pin contraction column (4) has all seted up Hole (5), limiting plate (17) are all installed to one side that four ends in the top of bottom plate (15) are close to PCB board (6), the bottom mounting of limiting plate (17) has fixture block (8), bottom plate (15) the top seted up with fixture block (8) assorted draw-in groove (9), rubber pad (7) are installed to one side that fixture block (8) are close to PCB board (6).

2. The PCB drilling positioning jig of claim 1, wherein: the top of bottom plate (15) is close to the below of silica gel cushion (1) and has seted up chamber groove (10), spring (16) are installed to the inside bottom in chamber groove (10), the top of spring (16) is connected with fixed column (3), fixed column (3) extend to the outside one end of bottom plate (15) and are connected with silica gel cushion (1).

3. The PCB drilling positioning jig of claim 1, wherein: the number of the positioning pins (13) is two, and the inner diameters of the second through hole (5) and the anti-reverse pin hole (11) are the same.

4. The PCB drilling positioning jig of claim 1, wherein: the inner wall of the clamping groove (9) is provided with a backing plate, and the outer wall of the backing plate is provided with an anti-slip groove.

5. The PCB drilling positioning jig of claim 1, wherein: the anti-reverse pin contraction column (4) and the anti-reverse pin installation column (12) are both cylindrical, and the diameter of the anti-reverse pin contraction column (4) is smaller than that of the anti-reverse pin installation column (12).

6. The PCB drilling positioning jig of claim 1, wherein: the bottom of bottom plate (15) is installed the shock attenuation board, and the bottom of shock attenuation board is provided with the arch.