CN202639399U

CN202639399U - Device for manufacturing mechanical blind hole board of PCB (Printed Circuit Board)

Info

Publication number: CN202639399U
Application number: CN 201220292339
Authority: CN
Inventors: 董晓俊
Original assignee: NANJING ALLFAVOR ELECTRONIC CO Ltd
Current assignee: Jiangsu Ben Chuan intelligent circuit Polytron Technologies Inc
Priority date: 2012-06-20
Filing date: 2012-06-20
Publication date: 2013-01-02
Anticipated expiration: 2022-06-20

Abstract

The utility model discloses a device for manufacturing a mechanical blind hole board of a PCB (Printed Circuit Board), which comprises a PCB loading plate and a U-shaped support, wherein the PCB loading plate is arranged on the U-shaped support, one end of the U-shaped support is an electric conduction chuck penetrating through the PCB loading plate, the other end of the U-shaped support is provided with a drilling mouth, and a drill head is arranged on the drilling mouth. The device provided by the utility model has excellent deep drilling precision and blind hole electroplating capacity, is reduced in production processes, and plays roles in shortening production period and lowering manufacture cost.

Description

PCB mechanical blind hole board manufacturing apparatus

Technical field

The utility model relates to a kind of manufacturing installation for PCB mechanical blind hole plate, belongs to pcb board production equipment field.

Background technology

In the PCB production process, the method and apparatus that blind hole is bored generally all is the method and apparatus that uses laser blind hole to bore, yet owing to electroplating the impact of degree of depth ability, laser drilling blind hole hole depth generally can only design below 100um, can only adopt the flow scheme design of laser stacking blind hole or the folded mechanical hole of laser hole for the darker blind hole of the degree of depth, this technical scheme has increased the complexity of technological design on the one hand, so that the pcb board Quality Down of producing; Because this scheme step is complicated, and production cost is higher, production process is consuming time longer simultaneously, has reduced operating efficiency on the other hand.

Summary of the invention

For the defective of existing laser blind hole drill method and equipment, the utility model discloses a kind of PCB mechanical blind hole board manufacturing apparatus, by using machine dimensions drill drilling blind hole function, can shorten flow process, reduce cost.

For achieving the above object, the utility model is achieved through the following technical solutions:

PCB mechanical blind hole board manufacturing apparatus comprises PCB loading plate, U-shaped support, and wherein said PCB loading plate is installed on the U-shaped support, and an end of U-shaped support is the conductive chuck that passes the PCB loading plate, and the other end of U-shaped support is bit, and drill bit is housed on the bit.

By above-mentioned mechanical blind hole twist drill pore structure, the pcb board spare that will hole in use is placed on the PCB loading plate, when the drill bit of bit touches surface copper layer on the plate, bit, plate and table top conductive chuck form the loop, at this moment bit pierces the set degree of depth downwards take the plate face as zero point, this kind structure drilling blind hole hole depth precision is higher, is subjected to the variable effect of thickness of slab less.

In the utility model, the drilling depth of drill bit can be Set arbitrarily according to actual needs, under the common condition of production, described bit depth is 300um, this degree of depth be present industrial application more widely, but remaining any degree of depth it will be appreciated by those skilled in the art that, as long as adopt suitable bit and drill bit thereof, all can realize.

Adopt device of the present utility model, the applicant has carried out the boring experiment, so that the superiority of the utility model device to be described:

Use rig power auger blind hole function respectively to bore 10 blind holes at four jiaos of pcb boards of experiment and middle five zones, the blind hole hole depth is set as 300um, and there is difference in the thickness of slab in five zones, and the thickness of slab extreme difference is 26um, hole depth data such as the table 1 of institute's drilling blind hole.Can be found out by the result, hole depth is not subjected to the impact of thickness of slab, porose hole depth extreme difference only has 18um, from the corresponding hole depth normal distribution of table 1 data (accompanying drawing 2), hole depth concentrates near the setting value 300um and the Cheng Danfeng shape distributes, CPK is 2.61 under the specification of ± 1mil, proves to have good hole depth control ability.

Table 1 power auger blind hole function drilling blind hole hole depth data

Device of the present utility model, mechanical blind hole hole depth generally more than 0.3mm, plate (0.08mm) much larger than normal laser blind hole deeply, and mechanical blind hole liquid medicine exchange capacity is better.Substantially about 1.2: 1, higher than normal laser blind hole, usage level PTH plating line can effectively guarantee the exchange of liquid medicine in the blind hole and the generation of avoiding microbubble to the A.R. ratio of the mechanical blind hole of its manufacturing.

Description of drawings

Fig. 1 is the structural representation of the utility model device;

Fig. 2 is the normal distribution corresponding with table 1 data.

The specific embodiment

With reference to figure 1, device of the present utility model comprises U-shaped support 2, PCB loading plate 1 is installed on the U-shaped support, and the PCB loading plate is used for placing pcb board spare 3, and an end of U-shaped support is the conductive chuck 21 that passes the PCB loading plate, the other end is bit 22, and drill bit 23 is installed on the bit 22.

Claims

1.PCB mechanical blind hole board manufacturing apparatus, comprise PCB loading plate, U-shaped support, it is characterized in that described PCB loading plate is installed on the U-shaped support, an end of U-shaped support is the conductive chuck that passes the PCB loading plate, the other end of U-shaped support is bit, and drill bit is housed on the bit.

2. PCB mechanical blind hole board manufacturing apparatus according to claim 1 is characterized in that described bit depth is 300um.