CN102218802A

CN102218802A - Method for processing rubber base mold of FTP electrical connector

Info

Publication number: CN102218802A
Application number: CN2011101308213A
Authority: CN
Inventors: 刘国; 阮盘坤; 蔡伟; 朱亚琴; 曹金庆; 廖谭斌; 磨小翠; 肖立向
Original assignee: SHENZHEN JINMENGYOU ELECTROMECHANICAL TECHNOLOGY CO LTD
Current assignee: SHENZHEN JINMENGYOU ELECTROMECHANICAL TECHNOLOGY CO LTD
Priority date: 2011-05-17
Filing date: 2011-05-17
Publication date: 2011-10-19

Abstract

The invention relates to a method for processing a rubber base mold of a FTP electrical connector, comprising the following steps that: (1) a slide is designed as a structure with a combination of 197 inserts; (2) a 46k grinding wheel is used to coarse grind the surfaces of the inserts and is fine repaired and grinded, a vice or a jig is clamped to grind right angles; (3) an 80k grinding wheel is used to correct the bottoms and the surfaces of two sides of the inserts and then coarse grind steps, and a 120k grinding wheel is used to clean right angles; (4) an R corrector and a gauge block is selected, a repair knife is clamped and leveled off with the gauge block, then the grinding wheel is used to clean right angles; (5) the 80k grinding wheel is used to correct the bottoms and the surfaces of two sides of the inserts and coarse grind the surface of the gluing part, and a 320k grinding wheel is used to clean right angles; and (6) an ejection pressure of 60 plus or minus 5MPa is set to prevent a drag mark of the slide, and an appropriate temperature of mold and materials are set to prevent the lack of glue in the gaps of the terminal grooves. The method effectively solves the problems of drag mark of the slide, lack of glue, high cost of producing the mold and long time of repairing the mold existing in FTP electrical connector with 30.6*4.6*1.17mm, with the advantages of reducing the production period of the mold and reducing the cost of the mold.

Description

A kind of processing method of FPC electric power connector rubber base mould

Technical field

The present invention relates to a kind of processing method of FPC electric power connector rubber base mould.

Background technology

The volume of FPC electric power connector is little, the internal structure complexity, the dimensional accuracy height (dimensional accuracy ± 0.01mm).Want to produce efficient and stable high quality of products, the superior injection mold of structure must be arranged; And common injection mold structure has the processing of being difficult for, shortcomings such as inconvenience, volume production instability is installed, and brings hidden danger to subsequent production.In order to improve the reasonability of FPC electric power connector rubber base mould structure, must optimize this mould structure.

Global design is adopted in the capable position of traditional FPC electric power connector rubber base mould, carries out technologies such as grinding machine, EDM, assembling.Because electrical spark working trade union produces the spark line, and the precision of spark machined can only reach ± 0.005mm, makes product surface coarse, influence product appearance, and tired easily gas starved.If a row position glue plane has a place to damage, then monoblock row position is scrapped and need be reformed, and causes the mould repairing time long and cost is high.

If adopt mold insert to piece together Combination Design to the row position, only need precision grinder processing, element precision is reached ± 0.002mm, and surface smoothness is high, satisfy the high-precision requirement of product fully; If a row position glue plane has a place to damage, then only need to change this broken parts mold insert, cause the mould repairing time short and cost is low.In order to optimize mould structure, must solve above technical problem, therefore this technology is studied.

Summary of the invention

The technical problem to be solved in the present invention provides a kind ofly can stablize the injection moulding volume production, optimize mould structure, guarantee a row position outward appearance do not have pull, starved, dimensional accuracy is controlled at ± 0.01mm in, and the processing method of 30.6 * 4.6 * 1.17mm FPC electric power connector rubber base mould that the cost that repairs a die is low, maintenance time is short.

In order to solve the problems of the technologies described above, the special character of the processing method of the FPC electric power connector rubber base mould that the present invention proposes is:

1, structural design: row position is provided with 66 8.8 * 2.28 * 0.24mm mold inserts and 66 8.8 * 2.28 * 0.16mm mold inserts arranges to piece together and combine, 65 14.03 * 1.8 * 0.5mm mold inserts that piece together with arrangement make up again, help the processing of grinding machine ultraprecise, both can guarantee that glue position, row position dimensional accuracy was in ± 0.001mm, make the product precision be controlled at ± 0.01mm in, can prevent that again row position groove is stranded the gas starved.

2, processing plane: the first step, adopt Datong District's precision grinder, and select the 46K emery wheel to stay 0.01 surplus to roughly grind to the plane around 14.03 * 1.8 * 0.5mm mold insert of Elmax steel (hardness is HRC60); In second step, the 46K emery wheel is repaiied carefully according to (0.01mm) left and right sides Y-axis under the X-axis, and the plane around 14.03 * 1.8 * 0.5mm mold insert is finish grinded; The 3rd step, select rectangular vice or tool to carry out clamping, repair thick two sides corase grind with emery wheel, will repair thin correct grinding again, two right angle faces that mill is good are processed two other face as reference angle.

3, processing step: at first select for use the 80K emery wheel that 14.03 * 1.8 * 0.5mm mold insert bottom surface and plane, both sides are revised, X-axis stays 0.05mm surplus, Y-axis to stay the 0.1mm surplus during corase grind, selects the 120K emery wheel to carry out the clear angle of R then.

4, the R angle is revised: at first select R corrector and slip gauge, repairing the good and slip gauge smoothing of cutter clamping, the two sides tool setting is made zero to the 120K emery wheel, the Y-axis zero-bit is motionless, X-axis rising 1mm, drop to zero-bit again, and then with the R angle of emery wheel correction 8.8 * 2.28 * 0.24mm mold insert and the R angle of 66 8.8 * 2.28 * 0.16mm mold inserts.

5, processing glue plane: at first select for use the 80K emery wheel that plane around 14.03 * 1.8 * 0.5mm mold insert top is revised, X-axis stays 0.05mm surplus, Y-axis to stay the 0.1mm surplus during corase grind, selects the 320K emery wheel to carry out the clear angle of R then.

6, injection mo(u)lding: the ejaculation pressure that 60 ± 5MPA is set is to prevent that the capable position of rubber base (pull by 25.85 * 0.39 * 0.4mm) depannings; Before and after mould all be provided with 70 ± 10 ℃, the melten gel temperature is provided with 80 ± 10 ℃ at 350 ± 10 ℃ at nozzle, one section 350 ± 10 ℃, two sections 345 ± 10 ℃, three sections 335 ± 10 ℃, feeding section, to avoid 65 0.14mm of place terminal grooves starved at interval.

The present invention compares with conventional art and has the following advantages: row position glue plane is carried out 197 mold inserts arrangements piece together combining structure, make row position glue plane if there is a place to damage, then only need to change this broken parts mold insert, and need not to change monoblock row position, having solved the capable position of 30.6 * 4.6 * 1.17mmFPC electric power connector effectively easily pulls and starved, the Mold Making cost height and the long problem of time that repairs a die, shorten the Mold Making cycle, reduced die cost.

Description of drawings

Fig. 1 is a product rubber base schematic diagram of the present invention.

Fig. 2 is the capable bit architecture schematic diagram of product rubber base of the present invention.

Fig. 3 is the capable position of a product rubber base of the present invention part schematic diagram.

The specific embodiment

Below in conjunction with embodiment the present invention is further described:

See also shown in Fig. 1,2,3, the processing method of described FPC electric power connector rubber base mould comprises:

1, row position design: adopt 66 8.8 * 2.28 * 0.24mm mold inserts 2 and 66 8.8 * 2.28 * 0.16mm mold inserts 3 to arrange to piece together to the row position and combine, 14.03 * 1.8 * 0.5mm mold insert, 1 combined structure design that pieces together with 65 arrangements again, help the processing of grinding machine ultraprecise, both can guarantee that glue position, row position dimensional accuracy was in ± 0.001mm, make the product precision be controlled at ± 0.01mm in, can prevent that again row position groove is stranded the gas starved.

2, processing plane 11: the first step, adopt Datong District's precision grinder, and select the 46K emery wheel to stay 0.01 surplus to roughly grind to the plane 11 around 14.03 * 1.8 * 0.5mm mold insert 1 of Elmax steel (hardness is HRC60); In second step, the 46K emery wheel is repaiied carefully according to (0.01mm) left and right sides Y-axis under the X-axis, and the plane 11 around 14.03 * 1.8 * 0.5mm mold insert 1 is finish grinded; The 3rd step, select rectangular vice or tool to carry out clamping, repair thick two sides corase grind with emery wheel, will repair thin correct grinding again, two right angle faces that mill is good are earlier processed two other face as reference angle.

3, processing step 15,13: at first select for use the 80K emery wheel that 14.03 * 1.8 * 0.5mm mold insert, 1 bottom surface and plane, both sides 11 are revised, X-axis stays 0.05mm surplus, Y-axis to stay the 0.1mm surplus during corase grind, selects the 120K emery wheel to carry out the clear angle of R then.

4,

R angle

21,31 is revised: at first select R corrector and slip gauge, repairing the good and slip gauge smoothing of cutter clamping, the two sides tool setting is made zero to the 120K emery wheel, the Y-axis zero-bit is motionless, X-axis rising 1mm, drop to zero-bit again, and then with the R angle 21 of emery wheel correction 8.8 * 2.28 * 0.24mm mold insert 2 and the R angle 31 of 66 8.8 * 2.28 * 0.16mm mold inserts 3.

5, processing glue plane 16: at first select for use the 80K emery wheel that plane around 14.03 * 1.8 * 0.5mm mold insert, 1 top 161 is revised, X-axis stays 0.05mm surplus, Y-axis to stay the 0.1mm surplus during corase grind, selects the 320K emery wheel to carry out the clear angle of R then.

The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.

Claims

1. the processing method of a FPC electric power connector rubber base mould is characterized in that, comprising:

(1), structural design: row position is provided with 66 8.8 * 2.28 * 0.24mm mold inserts and 66 8.8 * 2.28 * 0.16mm mold inserts arranges to piece together and combine, 65 14.03 * 1.8 * 0.5mm mold inserts that piece together with arrangement make up again, help the processing of grinding machine ultraprecise, both can guarantee that glue position, row position dimensional accuracy was in ± 0.001mm, make the product precision be controlled at ± 0.01mm in, can prevent that again row position groove is stranded the gas starved.

(2), processing plane: the first step, adopt Datong District's precision grinder, and select the 46K emery wheel to stay 0.01 surplus to roughly grind plane around Elmax steel (hardness is HRC60) 14.03 * 1.8 * 0.5mm mold insert; In second step, the 46K emery wheel is repaiied carefully according to (0.01mm) left and right sides Y-axis under the X-axis, and the plane around 14.03 * 1.8 * 0.5mm mold insert is finish grinded; The 3rd step, select rectangular vice or tool to carry out clamping, repair thick two sides corase grind with emery wheel, will repair thin correct grinding again, two right angle faces that mill is good are processed two other face as reference angle.

(3), processing step: at first select for use the 80K emery wheel that 14.03 * 1.8 * 0.5mm mold insert bottom surface and plane, both sides are revised, X-axis stays 0.05mm surplus, Y-axis to stay the 0.1mm surplus during corase grind, selects the 120K emery wheel to carry out the clear angle of R then.

(4), the R angle is revised: at first select R corrector and slip gauge, repairing the good and slip gauge smoothing of cutter clamping, the two sides tool setting is made zero to the 120K emery wheel, the Y-axis zero-bit is motionless, X-axis rising 1mm, drop to zero-bit again, then with the R angle of 66 8.8 * 2.28 * 0.24mm mold inserts of emery wheel correction and the R angle of 66 8.8 * 2.28 * 0.16mm mold inserts.

(5), processing glue plane: at first select for use the 80K emery wheel that plane around 14.03 * 1.8 * 0.5mm mold insert top is revised, X-axis stays 0.05mm surplus, Y-axis to stay the 0.1mm surplus during corase grind, selects the 320K emery wheel to carry out the clear angle of R then.

(6), injection mo(u)lding: the ejaculation pressure that 60 ± 5MPA is set is to prevent that the capable position of rubber base (pull by 25.85 * 0.39 * 0.4mm) depannings; Before and after mould all be provided with 70 ± 10 ℃, the melten gel temperature is provided with 80 ± 10 ℃ at 350 ± 10 ℃ at nozzle, one section 350 ± 10 ℃, two sections 345 ± 10 ℃, three sections 335 ± 10 ℃, feeding section, to avoid 65 0.14mm of place terminal grooves starved at interval.