CN211406423U

CN211406423U - Connect more firm individual layer circuit board

Info

Publication number: CN211406423U
Application number: CN201921726008.0U
Authority: CN
Inventors: 蔡锡洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-09-01
Anticipated expiration: 2029-10-15

Abstract

The utility model belongs to the technical field of the PCB processing technique and specifically relates to a connect more firm individual layer circuit board, including the single face circuit board, the border of circuit board is equipped with the reservation limit, the reservation limit includes body reservation limit and coincide reservation limit, coincide reservation limit both sides all are equipped with the tongue-and-groove, the notch of tongue-and-groove is equipped with the drilling backing plate, one side of drilling backing plate is equipped with the dovetail, drilling backing plate one side is equipped with drilling work panel, work panel with be equipped with the tool locating hole between one side on reservation limit, cup joint in proper order in the hole of tool locating hole and be equipped with uide bushing and threaded pin, the threaded connection portion of threaded pin is equipped with rather than assorted lock nut, through the utility model discloses an improvement, the effectual improvement with the stability of being connected of drilling backing plate when drilling, and resources are saved, be fit for promoting.

Description

Connect more firm individual layer circuit board

Technical Field

The utility model relates to a PCB processing technology field especially relates to a connect more firm individual layer circuit board.

Background

The principle of the PCB, also called as a printed circuit board, is that patterns on an integrated circuit film are printed on a substrate by etching, developing and the like by using special chemical liquid, and then a functional circuit board is formed. The earlier stage production processes of multilayer boards such as double-sided boards, one-pressing four-layer boards, HDI boards and the like are roughly divided into: cutting, roughening the surface, pressing, drilling, etching, developing, etc. However, for the single-layer circuit board, the drilling is directly carried out after cutting without roughening and pressing. However, due to the fact that the corresponding reserved edge can be removed according to the size in cutting, the clamping jig is directly used for positioning and drilling the substrate in the drilling process. Therefore, unstable connection between the drilling base plate and the drilling base plate is easy to occur during drilling, and the copper surface can be damaged at the position of the clamping edge, so that the quality of the whole plate is influenced. Therefore, the utility model discloses combine the special process of individual layer circuit board to propose one kind when drilling and be connected more firm individual layer circuit board between the drilling backing plate and solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the connection is unstable and the margin is reserved to waste in the prior art, and providing a single-layer circuit board which is more stable in connection.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a single-layer circuit board with more stable connection is designed, which comprises a single-sided circuit board, a reserved edge matched with the single-sided circuit board is arranged on the outer side of the edge of the circuit board, the reserved edge comprises a body reserved edge and an overlapped reserved edge arranged on the bottom layer, the overlapped reserved edge is detachably connected with the body reserved edge through a screw, a plurality of mortises are arranged on both sides of the superposed reserved edge far away from the single-sided circuit board, a drilling backing plate is arranged on one side of the notch of each mortice, one side of the drilling base plate is provided with a dovetail joint matched with the mortise, one side of the drilling base plate far away from the mortise is provided with a drilling working panel, four tool positioning holes which are opposite in pairs are arranged between the working panel and one side of the reserved edge, the hole of the jig positioning hole is sequentially sleeved and fixedly provided with a guide sleeve and a threaded pin, and the threaded connecting part of the threaded pin is provided with a locking nut matched with the threaded connecting part.

Preferably, the head of the threaded pin is provided with a disc type limiting block matched with the guide sleeve, and one side of the top of the circuit board is provided with a circuit area separated from the reserved edge.

Preferably, the drilling backing plate with be equipped with the chip groove that absorbs the drill chip between one side at circuit board back, the inside equidistance of chip groove just equallys divide and be equipped with a plurality of stereoplasm shock insulation and glue the piece.

Preferably, a plurality of the tongue-and-groove with the forked tail tenon all is the equidistance and equally divides the range.

The utility model provides a connect more firm individual layer circuit board, beneficial effect lies in: through collect the reservation limit of cutting out after the process of cutting, and through the body reservation limit, the coincide reservation limit is fixed a position to the circuit board drilling, realize the recycle of resource, do not harm the flange quality man-hour simultaneously, tongue-and-groove through reservation limit bottom, the setting and the cooperation of drilling backing plate and dovetail, make the drilling backing plate by vertical spacing fixed, through the uide bushing, the setting and the cooperation of screw pin and lock nut, with fixed locking on work panel between circuit board and the drilling backing plate, realize horizontal locking, thereby make overall structure more firm, effectively improve the drilling precision, the chip groove that the degree of depth and coincide reservation limit are unanimous has been set up between back and the drilling backing plate, absorb the drill chip of high-speed drill point, simultaneously because the vibrations that produce when the setting up absorption drilling of stereoplasm shock insulation gum piece, therefore, the clothes hanger is strong in practicability, and is suitable for popularization.

Drawings

Fig. 1 is a schematic structural view of a single-layer circuit board with more stable connection according to the present invention;

fig. 2 is a schematic view of a front cross-sectional structure of a single-layer circuit board with more stable connection according to the present invention;

fig. 3 is the utility model provides a connect side cut open structure schematic diagram of more firm individual layer circuit board.

In the figure: the shock insulation board comprises a circuit board 1, a reserved edge 2, a superposed reserved edge 21, a mortise 3, a dovetail 31, a drilling base plate 4, a working panel 5, a jig positioning hole 6, a guide sleeve 7, a threaded pin 8, a limiting block 81, a locking nut 9, a chip groove 10, a hard shock insulation rubber block 11 and a circuit area 12.

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.

Referring to fig. 1-3, a single-layer circuit board with more stable connection comprises a single-sided circuit board 1, a reserved edge 2 matched with the circuit board 1 is arranged on the outer side of the edge of the circuit board 1, the reserved edge 2 comprises a body reserved edge and an overlapped reserved edge 21 arranged on the bottom layer, the overlapped reserved edge 21 is detachably connected with the body reserved edge through screws to realize repeated use, a plurality of mortises 3 are respectively arranged on two sides of the overlapped reserved edge 21 away from the single-sided circuit board 1, a drilling backing plate 4 is arranged on one side of a notch of each mortice 3 to prevent a drill bit from deviating or forming a drill bit burr during drilling, dovetail 31 matched with each mortise 3 is arranged on one side of each drilling backing plate 4, longitudinal limiting and locking of each drilling backing plate 4 are realized through arrangement and matching of the mortises 3 and the dovetails 31, a drilling working panel 5 is arranged on one side of each drilling backing plate 4 away from the mortices 3, four jig positioning holes 6 which are opposite to each other are arranged between each other on, the fixed uide bushing 7 and the threaded pin 8 of being equipped with are cup jointed in proper order in the hole of tool locating hole 6, and the threaded connection portion of threaded pin 8 is equipped with rather than assorted lock nut 9, through the setting and the cooperation of threaded pin 8 and lock nut 9, locks the drilling backing plate 4 of bottom fixedly for connect more firmly.

The utility model discloses in, the head of threaded pin 8 be equipped with 7 assorted disc type stoppers 81 of uide bushing, top one side of circuit board 1 is equipped with the circuit district 12 that separates mutually with reserve limit 2, is equipped with the chip groove 10 that absorbs the drill chip between one side of 1 back of drilling backing plate 4 and circuit board, chip groove 10 inside equidistance just equally divide and be equipped with a plurality of stereoplasm rubber block 11, a plurality of shock insulation tongue-and-groove 3 and forked tail 31 all are the equidistance and equally divide the range, and overall structure is simple and practical, is fit for promoting.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The single-layer circuit board comprises a single-face circuit board (1) and is characterized in that a reserved edge (2) matched with the single-face circuit board is arranged on the outer side of the edge of the circuit board (1), the reserved edge (2) comprises a body reserved edge and an overlapped reserved edge (21) arranged on a bottom layer, the overlapped reserved edge (21) is detachably connected with the body reserved edge through screws, a plurality of mortises (3) are arranged on two sides of the overlapped reserved edge (21) far away from the single-face circuit board (1), a drilling base plate (4) is arranged on one side of a notch of each mortice (3), dovetails (31) matched with the mortices (3) are arranged on one side of the drilling base plate (4), a drilling working panel (5) is arranged on one side of each mortice (3) far away from the corresponding mortice, four opposite positioning holes (6) are arranged between the working panel (5) and one side of the reserved edge (2), the hole of tool locating hole (6) cup joints fixedly in proper order and is equipped with uide bushing (7) and threaded pin (8), the threaded connection portion of threaded pin (8) is equipped with rather than assorted lock nut (9).

2. The single-layer circuit board with more stable connection according to claim 1, wherein the head of the threaded pin (8) is provided with a disc-type limiting block (81) matched with the guide sleeve (7), and one side of the top of the circuit board (1) is provided with a circuit area (12) separated from the reserved edge (2).

3. The single-layer circuit board with more stable connection according to claim 1, characterized in that a chip groove (10) for absorbing drill cuttings is arranged between the drilling pad plate (4) and one side of the back of the circuit board (1), and a plurality of hard vibration isolation rubber blocks (11) are equally distributed and arranged in the chip groove (10) at equal intervals.

4. A more securely connected single layer circuit board according to claim 1, wherein a plurality of said mortises (3) and said dovetails (31) are equally spaced and arranged.