CN210518978U

CN210518978U - Lamp PCB with technical edge

Info

Publication number: CN210518978U
Application number: CN201920439044.2U
Authority: CN
Inventors: 毕志杰; 张晓波
Original assignee: Qidong Shengli Optoelectronics Technology Co ltd
Current assignee: Qidong Shengli Optoelectronics Technology Co ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-05-12
Anticipated expiration: 2029-04-02

Abstract

The utility model relates to the technical field of lamp PCBs, in particular to a lamp PCB with a technical edge, which comprises a PCB plate and plate edges, wherein the plate edges are provided with positioning holes, the plate edges are fixedly connected with the PCB plate through a connecting plate, the left side and the right side of the upper surface of the plate edges are provided with marks convenient for a chip mounter to recognize and position, the middle of the plate edges are provided with positioning blocks, gaps are reserved among the positioning blocks, and the plate edges can be clamped by the chip mounter conveniently; the conical block is arranged on the lower surface of the plate edge and protrudes downwards, and the bottom of the conical block is sharp, so that the surface of the belt can deform, and the friction force is increased; stamp holes are formed in the connecting plate, the stamp holes are divided into two rows, one row is close to one side of the plate edge, the other row is close to one side of the PCB, notches are formed in the left side and the right side of each stamp hole, V-shaped grooves are formed in the upper surface and the lower surface of the connecting plate from left to right, straight lines at the bottoms of the V-shaped grooves are intersected with the center line of each stamp hole, the plate edge can be conveniently removed subsequently, the fracture surface is flat, and burrs are few.

Description

Lamp PCB with technical edge

Technical Field

The utility model relates to a lamps and lanterns PCB technical field, concretely relates to take lamps and lanterns PCB on technology limit.

Background

General circuit board production all can carry out the makeup operation, and its purpose is in order to increase the production efficiency of SMT production line. The PCB jointed board has another advantage that time can be saved when the PCBA is taken and placed, because a plurality of boards can be taken and placed at one time, if the subsequent board step test can be realized, the working hours wasted when the boards are taken and placed in the jig can be greatly saved if the board connecting test can be realized.

In the PCB process flow, the reservation of the process edge has very important significance for the subsequent SMT patch processing. The process edge is the part for assisting production of the plug-in board walking and welding wave crests on two sides or four sides of the PCB, is mainly used for assisting production, does not belong to one part of the PCB, and can be removed after the manufacturing production is finished. The main reason for leaving the process edge is that the track of the SMT pick-up machine is used for clamping the PCB and flowing through the pick-up machine, so that components too close to the track edge collide when the components are sucked by the suction nozzle of the SMT pick-up machine and mounted on the PCB, and production cannot be completed, so that a certain process edge, for example, 1.5-5mm, must be reserved. The same applies to some plug-in components, and similar phenomena are prevented when wave soldering is carried out.

The process edge of a PCB needs to be balanced against economy and manufacturability because it consumes more board material and increases the overall cost of the PCB. Aiming at some PCB boards with special shapes, the original PCB board with 2 process edges or 4 process edges can be greatly simplified by a splicing mode. When designing the splicing mode, the track width of the SMT chip mounter needs to be fully considered, and splicing boards with the width exceeding 350mm need to be communicated with a process engineer of an SMT supplier.

The flatness of the PCB process edge is also an important component in PCB production, which has a considerable relationship with V-Cut. When the PCB process edge is removed, the process edge needs to be ensured to be smooth, especially for a PCB with extremely high assembly precision requirement, any uneven rough edge can cause the deviation of an installation hole position, and great trouble is brought to subsequent assembly.

The existing SMT production line is highly automated, boards are conveyed by belts and chains, so that the most main purpose of board edges is to convey the boards for the belts and the chains, but at some belt turning positions, if the speed of the belts is high, the whole jointed boards are easy to slide, so that the speed of the belts is reduced, and the production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a take lamps and lanterns PCB on technology limit mainly solves current lamps and lanterns PCB makeup when sending to the chip mounter, slides easily in the belt turning, and the flange limit is difficult for removing, and the fracture surface is coarse and have the problem of more burr.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides a take lamps and lanterns PCB on technology limit, includes PCB board and flange, it has the locating hole to open on the flange limit, the flange limit with through connecting plate fixed connection, its characterized in that between the PCB board: the anti-skid device comprises a fixing device, an anti-skid device and a splicing device, wherein the fixing device comprises Mark and positioning blocks, the Mark convenient for a chip mounter to recognize and position is arranged on the left side and the right side of the upper surface of each plate edge, the positioning blocks are arranged in the middle of the plate edges, and gaps are reserved among the positioning blocks, so that the plate edges can be clamped by the chip mounter conveniently; the anti-skid device comprises a conical block, the conical block is arranged on the lower surface of the plate edge and protrudes downwards, and the bottom of the conical block is sharp; the splicing device comprises stamp holes, the connecting plate is provided with the stamp holes, the stamp holes are divided into two lines, one line is close to one side of the plate edge, the other line is close to one side of the PCB, the left side and the right side of each stamp hole are provided with cuts, the upper surface and the lower surface of the connecting plate are provided with V-shaped grooves from left to right, and the bottom straight lines of the V-shaped grooves are intersected with the center lines of the stamp holes.

Preferably, the Mark is a cross Mark.

Preferably, the positioning blocks are rectangular blocks and are uniformly distributed on the plate edges.

Preferably, the left side and the right side of the bottom of the plate edge are uniformly distributed with the conical blocks, the upper parts of the conical blocks are cylinders, and the lower parts of the conical blocks are round tables.

Preferably, a diameter connecting line of the stamp hole close to one side of the plate edge is overlapped with a side face of the plate edge, and a diameter connecting line of the stamp hole close to one side of the PCB is overlapped with a side face of the PCB.

Preferably, the shape of the notch is a V-shape.

(III) advantageous effects

Compared with the prior art, the beneficial effects of the utility model reside in that: (1) the fixing device is arranged on the plate edge, so that the clamping part of the chip mounter can be clamped in the gap between the positioning blocks conveniently, and the stability of the plate edge is improved; (2) the bottom of each plate edge is provided with an anti-skidding conical block, and the conical block protrudes downwards, so that the surface of the belt can deform and is sunken inwards, the friction force can be increased, and the plate edges are prevented from sliding; and (3) stamp holes are formed in the connecting plate, notches and V-shaped grooves are formed in the stamp holes, so that plate edges can be conveniently removed subsequently, the fracture surface is smooth, and burrs are few. The utility model discloses simple structure, convenient to use, the actual effect is outstanding.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a bottom schematic view of the present invention;

FIG. 4 is a schematic structural view of a cone block portion;

FIG. 5 is an enlarged partial schematic view taken at circle in FIG. 1;

fig. 6 is a schematic structural view of a V-groove portion.

The reference numerals are as follows:

1. a PCB board; 2. plate edges; 3. mark; 4. positioning blocks; 5. a connecting plate; 6. a conical block; 7. stamp holes; 8. cutting; 9. and a V-shaped groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are one divided embodiment of the present invention, not the full-end embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and 2, a lamp PCB with a technical edge comprises a PCB board 1 and a board edge 2, the board edge 2 is provided with a positioning hole, the board edge 2 is fixedly connected with the PCB board 1 through a connecting plate 5, the lamp PCB further comprises a fixing device, an anti-skid device and a splicing device, the fixing device comprises Mark 3 and a positioning block 4, the left side and the right side of the upper surface of the board edge 2 are respectively provided with Mark 3 convenient for a chip mounter to recognize and position, the Mark 3 is a cross Mark, the middle of the board edge 2 is provided with the positioning block 4, the positioning block 4 is a rectangular block and is uniformly distributed on the board edge 2, a gap is reserved between the positioning blocks 4, a clamping device convenient for the chip mounter extends into the gap to clamp the board edge 2, the stability of the board edge 2 is improved, and the chip mounter is beneficial to absorb a suction nozzle and mount components on the PCB board.

The anti-skid device comprises conical blocks 6, as shown in fig. 4, the left side and the right side of the bottom of the plate edge 2 are uniformly distributed with the conical blocks 6, the upper parts of the conical blocks 6 are cylinders, the lower parts of the conical blocks are round tables and protrude downwards, and the bottoms of the dead conical blocks 6 are sharp, so that when the plate edge 2 is placed on the conveying belt, the bottom of each conical block 6 is recessed inwards under the action of gravity, the friction force can be increased, and the plate edge 2 is prevented from sliding; the splicing device comprises stamp holes 7, as shown in fig. 5 and 6, stamp holes 7 are formed on a connecting plate 5, wherein the stamp holes 7 are divided into two rows, one row is close to one side of a plate edge 2, the other row is close to one side of a PCB 1, in order to reduce burrs generated on the PCB when the stamp holes are broken off, a diameter connecting line of the stamp holes 7 close to one side of the plate edge 2 is coincided with the side surface of the plate edge 2, the diameter connecting line of the stamp holes 7 close to one side of the PCB 1 is coincided with the side surface of the PCB 1, in order to facilitate the subsequent work of removing the plate edge, notches 8 are formed on the left side and the right side of the stamp holes 7, the notches 8 are V-shaped, so that when external force is applied to the stamp holes 7, the notches 8 can generate stress concentration and are easy to break, in addition, V-shaped grooves 9 are formed on the upper surface and the lower surface of the connecting plate 5 from left to right, and the bottom straight, namely, the bottom straight line of the V-shaped groove 9 is intersected with the notch straight line of the notch 8, so that the whole fracture surface is smoother, and the generation of burrs is reduced.

The working principle of the utility model is as follows: this device is put on chip mounter's transmission belt, the awl piece 6 of flange 2 bottom is protrusion downwards for the belt surface is sunken inwards, frictional force has been increased, in places such as the turning department of belt, flange 2 is difficult for sliding, then chip mounter discerns the cross Mark 3 on the flange 2, realize the location of flange 2, then the centre gripping device stretches into among the locating piece 4 clearance, clip flange 2, carry out the hem, in the follow-up working process of getting rid of flange 2, can directly break off with the fingers and thumb, or with the help of corresponding equipment, when external force acts on connecting plate 5, because the existence of incision 8 and V-arrangement groove 9, these positions produce stress concentration very easily, then the fracture, and the fracture surface is more level and smooth, the burr is less.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a take lamps and lanterns PCB on technology limit, includes PCB board (1) and flange (2), it has the locating hole to open on flange (2), flange (2) with through connecting plate (5) fixed connection, its characterized in that between PCB board (1): the anti-skid device comprises a fixing device, an anti-skid device and a splicing device, wherein the fixing device comprises Mark (3) and positioning blocks (4), the Mark (3) convenient for a chip mounter to recognize and position is arranged on the left side and the right side of the upper surface of each plate edge (2), the positioning blocks (4) are arranged in the middle of each plate edge (2), and gaps are reserved among the positioning blocks (4) so that the plate edges (2) can be clamped by the chip mounter conveniently; the anti-skid device comprises a conical block (6), the conical block (6) is arranged on the lower surface of the plate edge (2) and protrudes downwards, and the bottom of the conical block (6) is sharp; splicing apparatus includes stamp hole (7), it has to open on connecting plate (5) stamp hole (7), wherein, stamp hole (7) divide into two lines, and the one line is close to flange (2) one side, and another line is close to PCB board (1) one side, just incision (8) have all been opened to the left and right sides in stamp hole (7), open from a left side to the right side on connecting plate (5) upper and lower surface has V-arrangement groove (9), just the bottom straight line of V-arrangement groove (9) with the central line in stamp hole (7) is crossing.

2. The PCB with the technical edge as claimed in claim 1, wherein: the Mark (3) is a cross Mark.

3. The PCB with the technical edge as claimed in claim 1, wherein: the positioning blocks (4) are rectangular blocks and are uniformly distributed on the plate edges (2).

4. The PCB with the technical edge as claimed in claim 1, wherein: the left side and the right side of the bottom of the plate edge (2) are provided with the conical blocks (6), the upper parts of the conical blocks (6) are cylinders, and the lower parts of the conical blocks are round tables.

5. The PCB with the technical edge as claimed in claim 1, wherein: the diameter connecting line of the stamp hole (7) close to one side of the plate edge (2) is superposed with the side surface of the plate edge (2), and the diameter connecting line of the stamp hole (7) close to one side of the PCB (1) is superposed with the side surface of the PCB (1).

6. The PCB with the technical edge as claimed in claim 1, wherein: the shape of the notch (8) is V-shaped.