CN201500800U

CN201500800U - Detachable backing plate

Info

Publication number: CN201500800U
Application number: CN2009202091067U
Authority: CN
Inventors: 于闯
Original assignee: Shanghai Kaisier Electronic Co Ltd
Current assignee: Shanghai Kaisier Electronic Co Ltd
Priority date: 2009-09-03
Filing date: 2009-09-03
Publication date: 2010-06-09
Anticipated expiration: 2019-09-03

Abstract

The utility model relates to a detachable backing plate which comprises a big backing plate and a plurality of small spare backing plates with the same shape and size, wherein small backing plate fixing windows having the same shape and size as that of the small backing plates are arranged in the frequently-drilling positions on the big backing plate. The frequency of replacing the big backing plate can be reduced by replacing the small backing plates, thereby saving the production cost, reducing the resource waste and improving the utilization ratio of the combined backing plate above 90 percent. The detachable backing plate also has the advantages of convenient assembly and disassembly and having no influence to the drilling precision.

Description

A kind of backing plate that decomposes

Technical field

The utility model relates to printed circuit board processing device, especially a kind of decomposed backing plate that punches on printed circuit board (PCB).

Background technology

The present drilling operating in PCB produces, the copper clad plate major part that needs boring all are by making locating hole on backing plate, plant then that the method for pin fixes.Because the composing size of PCB is more approaching, so the position of kind pin is very concentrated.As shown in Figure 1, such backing plate using less than five/once situation under scrapped, cause great waste.

Summary of the invention

The purpose of this utility model is to overcome the defective that exists in the prior art, and a kind of the decomposed backing plate that can save production cost, reduce the wasting of resources is provided.

The purpose of this utility model is achieved in that a kind of backing plate that decomposes, it comprises a switch base plate, it is characterized in that: it also comprises the small raft of some standby identical shaped sizes, the frequent bore position setting small raft stationary window identical with the small raft geomery on switch base plate.

The upper and lower surface of described small raft can be rectangle, square or circular.

Be provided with 2～4 screw holes fixing on the PCB drilling machine operating desk on the described small raft.

The edge of described small raft stationary window is provided with 1～2 convenient breach that takes out small raft.

The utlity model has following advantage: the utility model is provided with the small raft stationary window on the switch base plate of frequent bore position, reduced the frequency of changing switch base plate by the mode of changing small raft, thereby save production cost, reduce the wasting of resources, the utilization rate of combined type backing plate can be brought up to more than 90%.And it also to have mounting or dismounting convenient, do not influence advantages such as borehole accuracy.

Description of drawings

Fig. 1 is a prior art PCB drilling machine backing plate perspective view;

Fig. 2 is that the utility model can decompose the backing plate perspective view.

The specific embodiment

As shown in Figure 2, a kind of backing plate that decomposes, it comprises the small raft 2 that a switch base plate 1 and some standby same size upper and lower surfaces are rectangles, the frequent bore position setting small raft stationary window 3 identical with small raft 2 shapes at the two ends of switch base plate 1.Be provided with 4 screw holes 4 fixing on the PCB drilling machine operating desk on the small raft 2.Be provided with 2 convenient breach 5 that take out small raft at the edge of small raft stationary window 3.

Claims

1. one kind can be decomposed backing plate, it comprises a switch base plate (1), it is characterized in that: it also comprises the small raft (2) of some standby identical shaped sizes, goes up the frequent bore position setting small raft stationary window (3) identical with small raft (2) geomery at switch base plate (1).

2. according to the described backing plate that decomposes of claim 1, it is characterized in that: the upper and lower surface of described small raft (2) is rectangle, square or circular.

3. according to claim 1 or the 2 described backing plates that decompose, it is characterized in that: be provided with 2～4 screw holes (4) fixing on the PCB drilling machine operating desk on the described small raft (2).

4. according to claim 1 or the 2 described backing plates that decompose, it is characterized in that: the edge of described small raft stationary window (3) is provided with 1～2 convenient breach (5) that takes out small raft.

5. according to the described backing plate that decomposes of claim 3, it is characterized in that: the edge of described small raft stationary window (3) is provided with 1～2 convenient breach (5) that takes out small raft.