CN204320906U

CN204320906U - The die-cut precision die of a kind of overlength backlight aluminum base circuit board

Info

Publication number: CN204320906U
Application number: CN201420688614.9U
Authority: CN
Inventors: 简玉苍
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-11-18
Filing date: 2014-11-18
Publication date: 2015-05-13
Anticipated expiration: 2024-11-18

Abstract

The utility model relates to mould applications, relate to the die-cut precision die of a kind of overlength backlight aluminum base circuit board specifically, comprise some wall scroll backlight plates, this wall scroll backlight plate is rectangle, described wall scroll backlight plate corner is provided with four locating holes, wherein the upper right corner is fool proof hole, this fool proof hole and other three holes Unequal distance, asymmetric, pilot pin is inserted in described four locating holes, some parallel equidistant square grooves are horizontally arranged with at wall scroll backlight plate, described square groove both sides are technique edges, the place that wall scroll backlight plate two is connected with technique edges arranges V-CUT cutter line of cut.The utility model can die-cut length at the product of 250mm ~ 600mm, more than width 4mm, its precision improves, and efficiency improves, die life lengthens, the product quality using the die-cut precision die of the utility model backlight aluminum base circuit board to produce is secure, reduces burr peak, the phenomenons such as distortion.

Description

The die-cut precision die of a kind of overlength backlight aluminum base circuit board

Technical field

The utility model relates to mould applications, relates to the die-cut precision die of a kind of overlength backlight aluminum base circuit board specifically.

Background technology

At present in PCB manufacturing, particularly aluminium base manufacturing, adopt product mainly Down lamp plate, wall lamp plate, the power panel etc. that mould is die-cut, product size is mostly at below 200X200mm, and product length and width dimension scale is generally all less than 20:1.Chang Du≤200mm, Kuan Du≤4 mm, product length and width size is Bi the meticulous long products of Li≤50:1, such as backlight product, because assembling needs, portioned product is strict to profile width dimensions tolerance, do not allow width to be V-CUT, and require that allowance control is within +/-0.1mm.

The difficulty of processing feature of above-mentioned meticulous long products is: profile width dimensions tolerance is strict, and product design dimensions length is longer, and product width is thin, so be commonly called as meticulous long products, this series products is occupied the majority by backlight plate.

For this meticulous long products in industry, general is all the mode taking jigsaw shaping, namely SET jigsaw is formed by some backlight plates, two technique edges connects, arrange at regular intervals between wall scroll plate and wall scroll plate, time shaping, waste material between width is removed (as Fig. 1: backlight aluminum base circuit board formed machining schematic diagram).

Two kinds of traditional at present forming methods:

1. adopt the mode of CNC numerical control gong: during the slot of CNC gong width, gong cutter can cut the both sides sidewall extrusion of slot, because wall scroll backlight plate width is thinner, and length is long, easy wobble deviation in gong plate process, cause compact dimensions deviation large, precision is not high, can not meet product size tolerance.And CNC numerical control gong material consumption cost is high, working (machining) efficiency is low, and quality is without guarantee.

2. adopt the mode that mould is die-cut: for the Mold Making of meticulous long products in industry, just change on material, processing mode, or even adopt open A, B two the mode of mold combine die-cut, so not only cost increases, and die life is short, easy generation distortion does not reach precision, and the new mould debug phase just produces and collapses mould what is more, causes mould to scrap.Have minority producer attempted adopting A, B two the mode of mold combine die-cut, such die life improves, but die cost is higher, and efficiency is lower, and because wanting twice positioning punching, precision is not high yet.

Storage multi circuit board manufacturing factory is not because reaching the required precision of this series products, and processing cost is too high, and shaping scrappage is high and abandon undertaking order.

In sum, for the shaping jig that meticulous long products is traditional, namely punching of circuit board precision die needs to improve.

Utility model content

The technical problems to be solved in the utility model there are provided the die-cut precision die of overlength backlight aluminum base circuit board that a kind of precision is high, efficiency is high, the life-span is long, and the product quality that this mould is produced is high, and comprehensive process cost is low.

For solving the problems of the technologies described above, the utility model is realized by following scheme:

The die-cut precision die of a kind of overlength backlight aluminum base circuit board, comprise some wall scroll backlight plates, this wall scroll backlight plate is rectangle, described wall scroll backlight plate corner is provided with four locating holes, wherein the upper right corner is fool proof hole, this fool proof hole and other three holes Unequal distance, asymmetric, pilot pin is inserted in described four locating holes, some parallel equidistant square grooves are horizontally arranged with at wall scroll backlight plate, described square groove both sides are technique edges, and the place that wall scroll backlight plate two is connected with technique edges arranges V-CUT cutter line of cut.

Further, the line of cut that two ends, described square groove left and right stride across V-CUT cutter rushes in 0.5 ~ 1.0mm toward technique edges.

Further, described square groove width is 2mm.

Further, described square groove intermediate mold sets up connection bit, to reinforce mould structure, strengthens bearing capacity.

Further, the line of cut of described V-CUT cutter is within vertical two locating hole scopes.

Further, described technique edges width is between 5mm ~ 10mm.

Relative to prior art, the beneficial effects of the utility model are:

1. can die-cut length at 250mm ~ 600mm, the product of more than width 4mm.

2. precision improves, and only open one set of die, in one set of die, once property completes formed product, product tolerance can be controlled in ± 0.1mm within.

3. efficiency improves, and only open one set of die, in one set of die, once property completes formed product, improved efficiency.

4. die life is long, traditional die design method is adopted to make backlight product mould, General Life can only reach 4 ~ 60,000 jig frequencies, and often to reprocess grinding, affect efficiency and quality without guarantee, the die life of the utility model design can reach more than 100,000 jig frequencies, can reach the die life of common small-size product.

5. the product quality using the die-cut precision die of the utility model backlight aluminum base circuit board to produce is secure, reduces burr peak, the phenomenons such as distortion.

6. cost is low, only opens one set of die, adopts Design of Dies of the present utility model, and the comparable traditional moulds of cost at least saves half.

Accompanying drawing explanation

Fig. 1 is backlight aluminum base circuit board formed machining schematic diagram of the present utility model.

Fig. 2 be the utility model backlight aluminum base circuit board die-cut before first auxiliary gong groove schematic diagram.

Fig. 3 sets up connection bit top view in the middle of the utility model mould square groove.

Mark in accompanying drawing: wall scroll backlight plate 1; Square groove 2; Fool proof hole 3; Technique edges 4; Gong slot 5; Connection bit 6; Guide-post of die-set 7.

Detailed description of the invention

Below in conjunction with drawings and Examples, the technical solution of the utility model is explained in detail.

Please refer to accompanying drawing 1 ~ 3, the die-cut precision die of a kind of backlight aluminum base circuit board of the present utility model, mould corner is provided with guide-post of die-set 7, the utility model mould comprises some wall scroll backlight plates 1, this wall scroll backlight plate 1 is rectangle, some wall scroll backlight plates connect to form SET jigsaw by technique edges 4, described 4 four jiaos, backlight SET board-splicing process limit is provided with four locating holes, wherein the upper right corner is fool proof hole 3, this fool proof hole 3 and other three holes Unequal distance, asymmetric, pilot pin is inserted in described four locating holes, some parallel equidistant square grooves 2 are horizontally arranged with at wall scroll backlight plate 1, square groove 2 width is generally 2mm, the connection bit of 5 ~ 10 mm is set up in the middle of described square groove 2, described square groove 2 both sides are technique edges 4, technique edges 4 width is between 5mm ~ 10mm, the place that described wall scroll backlight plate 1 two is connected with technique edges 4 arranges V-CUT cutter line of cut, 0.5 ~ 1.0mm on the line of cut that square groove about 2 two ends stride across V-CUT cutter, and the line of cut of V-CUT cutter is within vertical two locating hole scopes.

Fool proof hole 3 is to provide locates accurately, and directed use prevents reverse importing.Because there are four locating holes, be have fixing direction in mould insertion apparatus, need to use fool proof hole 3 and prevent from putting back position.

Please refer to accompanying drawing 2, Fig. 2 be the utility model backlight aluminum base circuit board die-cut before first auxiliary gong groove schematic diagram, the elliptical aperture in the middle of it uses CNC numerical control machine gong empty, connection bit 6 is done herein during Design of Dies, can mould structure be reinforced like this, not yieldingly collapse mould, extend die life.Middle shaded oval part is empty with CNC numerical control machine gong, the empty length 6 ~ 11mm of gong, because mould will design connection bit 6 herein, rushes less than this place of product jigsaw, so will empty for this local first gong of product jigsaw.Mould connection bit 6 will design shorter than this oval gong dead slot, so that the smooth connection in die-cut slot and gong slot 5.

The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.

Claims

1. the die-cut precision die of overlength backlight aluminum base circuit board, comprise some wall scroll backlight plates (1), this wall scroll backlight plate (1) is rectangle, it is characterized in that: described wall scroll backlight plate (1) corner is provided with four locating holes, wherein the upper right corner is fool proof hole (3), this fool proof hole (3) and other three holes Unequal distance, asymmetric, pilot pin is inserted in described four locating holes, some parallel equidistant square grooves (2) are horizontally arranged with at wall scroll backlight plate (1), described square groove (2) both sides are technique edges (4), the place that wall scroll backlight plate (1) two is connected with technique edges (4) arranges V-CUT cutter line of cut.

2. the die-cut precision die of a kind of overlength backlight aluminum base circuit board according to claim 1, is characterized in that: the line of cut that described square groove (2) two ends, left and right stride across V-CUT cutter rushes in 0.5 ~ 1.0mm toward technique edges.

3. the die-cut precision die of a kind of overlength backlight aluminum base circuit board according to claim 1 and 2, is characterized in that: described square groove (2) width is 2mm.

4. the die-cut precision die of a kind of overlength backlight aluminum base circuit board according to claim 1 and 2, is characterized in that: described square groove (2) intermediate mold sets up connection bit (6).

5. the die-cut precision die of a kind of overlength backlight aluminum base circuit board according to claim 2, is characterized in that: the line of cut of described V-CUT cutter is within vertical two locating hole scopes.

6. the die-cut precision die of a kind of overlength backlight aluminum base circuit board according to claim 1, is characterized in that: described technique edges (4) width is between 5mm ~ 10mm.