CN113488827B

CN113488827B - Machining method for connector mould part

Info

Publication number: CN113488827B
Application number: CN202110778879.2A
Authority: CN
Inventors: 周勇; 陈遥; 刘伟
Original assignee: Guangdong Huaruizhilian Electronic Technology Co ltd
Current assignee: Guangdong Huaruizhilian Electronic Technology Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2023-07-28
Anticipated expiration: 2041-07-09
Also published as: CN113488827A

Abstract

The invention discloses a connector mould part processing method, which comprises a part body and an embedded part, wherein one end of the part body is manufactured into at least one injection moulding model column for injection moulding to form a placement position, the embedded part is manufactured into a sheet shape in the second step, the embedded part is contacted with the injection moulding model column in the third step, the embedded part and the injection moulding model column are fixed in a welding mode, the redundant part of the embedded part is removed according to the design, a sheet for injection moulding clamping position is formed, the injection moulding model column and the sheet are combined to form an injection moulding part, the embedded part is innovatively used to form an integral body by using the two parts, the corner clearance generated by a discharging procedure is effectively solved, no round corner exists between the placement position and the clamping position during injection moulding, and the yield is improved.

Description

Machining method for connector mould part

Technical Field

The invention belongs to the technical field of dies, and particularly relates to a processing method of a connector die part.

Background

Connectors, also called connectors, are also referred to herein as fittings and sockets and are generally referred to as electrical connectors. That is, the devices connecting two active devices transmit current or signals, with the continuous development of new energy automobiles, the integrated electronic devices are more and more, and the amount of transmitted information is more and more, so that the number of metal shrapnel integrated by connectors with the same volume for transmitting data is more and more, fig. 1 and 2 are schematic diagrams of the current connectors, usually, a plurality of small and dense placement positions 11' are arranged in the connector 1', a clamping position 12' is communicated at one side of the placement position 11', a transmission part of the metal shrapnel is arranged in the placement position 11', and an elastic fixing part of the metal shrapnel is arranged in the clamping position 12' and is propped against the side wall of the clamping position 12 '.

At present, the above-mentioned placing position 11' and clamping position 12' are formed by stacking and injection molding a plurality of mold parts, and the volume of the mold parts for producing the connector is very small, and the processing is usually performed by adopting a discharge etching mode, but the discharge etching mode can generate a clear angle at the etching position, so that the connection position between the placing position 11' and the clamping position 12' after injection molding forms a round angle, the contact area between the elastic fixing part of the metal elastic sheet and the clamping position 12' is small, the fixing effect is greatly reduced, the metal elastic sheet is easy to fall, and the metal elastic sheet can not reach the clear angle requirement even if the discharge copper is made very small due to the very small volume of the mold parts.

Disclosure of Invention

The invention aims to provide a processing method of a connector die part, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions:

a method for processing a part of a connector die comprises a part body and an embedded part,

firstly, manufacturing one end of a part body into at least one injection molding model column for injection molding to form a placement position;

secondly, manufacturing the embedded piece into a sheet shape;

thirdly, the embedded piece is contacted with the injection molding model column;

fourthly, fixing the embedded part and the injection molding model column in a welding mode;

and fifthly, removing redundant parts of the insert according to the design to form a sheet for injection molding the clamping position, and combining the injection molding model column and the sheet to form an injection molding part.

According to the technical scheme, in the first step, one end of a part body is manufactured into a cuboid injection molding model column in a cutting mode.

In the third step, the embedded part is completely attached to the injection molding model column, so that an included angle C is formed between the embedded part and the injection molding model column.

In the fourth step, the position stepping point arrangement is carried out before welding, and the distance between welding spots on the same injection molding model column is 0.6mm-1.0mm.

According to the technical scheme, in the third step, an L-shaped limit groove is formed in the part body through cutting, one end of the embedded part is provided with a clamping part, the shape of the clamping part is matched with that of the limit groove, the embedded part is embedded into the limit groove, and the other end of the embedded part extends towards the injection molding model column.

In a further technical scheme, in the fourth step, after welding is completed, polishing treatment is carried out on the surface of the embedded part.

According to the technical scheme, when the number of the injection molding model columns is multiple, the injection molding model columns are arranged at intervals, in the fifth step, cutting is conducted at the interval position between the two injection molding model columns, the embedded part is divided into a plurality of thin slices used for forming clamping positions, and each injection molding model column and each thin slice form an independent injection molding part.

In a further technical scheme, in the fifth step, the thin sheets protrude from two sides of the injection molding model column.

The invention has the beneficial effects that:

the invention provides a processing method of a connector mould part, which innovatively uses an embedded type to form two parts into a whole, effectively solves the problem of corner cleaning caused by a discharging procedure, simplifies a processing procedure, ensures that no round angle exists between a placing position and a clamping position during injection molding, and improves the yield.

Drawings

Fig. 1: the connector of the present invention is a perspective view and a bottom view.

Fig. 2: an enlarged view of the portion a in fig. 1 of the present invention.

Fig. 3: the part body and the embedded block structure of the invention are shown in the figure.

Fig. 4: the mold part structure diagram of the invention.

Fig. 5: the cross-section of the mould part of the invention

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention,

referring to figures 1-5 of the drawings,

a method for processing a connector mould part comprises a part body 1 and an embedded part 2,

firstly, manufacturing one end of a part body 1 into at least one injection molding model column 11 for injection molding to form a placement position according to a design by a slow wire cutting machine, wherein when the number of the injection molding model columns 11 is multiple, the injection molding model columns 11 are arranged at intervals, and the injection molding model columns 11 are in a cuboid shape;

secondly, manufacturing the embedded part 2 into a sheet shape, wherein the bottom surface of the sheet-shaped embedded part is flush with the surface of the part body 1 after being welded with the injection molding model column 11;

thirdly, a limiting groove 12 which is L-shaped is formed in the part body 1 through a slow wire cutting machine, one end of the embedded part 2 is provided with a clamping part 22, the shape of the clamping part 22 is matched with that of the limiting groove 12, the embedded part 2 which is in a sheet shape is placed on the injection molding model column 11, the clamping part 22 is embedded into the limiting groove 12, the other end of the embedded part 2 extends towards the direction of the injection molding model column 11, one surface of the embedded part 2, which is in contact with the injection molding model column 11, is completely attached to form a certain included angle C, the clear angle is 0 at the moment, along with the higher and higher precision of processing, and the angle of the included angle C is infinitely close to 90 degrees.

Fourthly, fixing the embedded part 2 and the injection molding model column 11 in a welding mode, performing position stepping point arrangement before welding, and polishing the surface of the embedded part 2 after the welding is completed, wherein the distance between welding points on the same injection molding model column 11 is 0.6mm-1.0mm;

and fifthly, removing redundant parts of the insert 2 according to the design to form sheets 21 for injection molding clamping positions, wherein the sheets 21 protrude out of two sides of the injection molding model columns 11, when the number of the injection molding model columns 11 is multiple, cutting is carried out at the interval positions 13 between the two injection molding model columns 11, the insert 2 is divided into a plurality of sheets 21 for forming the clamping positions, each injection molding model column 11 and each sheet 21 form independent injection molding parts, and the thickness h2 of the sheet 21 is smaller than the clamping position thickness h1 after injection molding.

In the process of manufacturing the mould parts, the injection moulding model column 11 is formed by adopting the wire cutting, so that the deformation of the mould zero and the manufactured and formed injection moulding model column 11 caused by the processing of a grinding machine can be effectively avoided, the electric discharge machining process is not required, the embedded type injection moulding model column is innovatively used to form the whole of the two parts, the clear angle generated by the electric discharge process is effectively solved, the clear angle is 0, the yield is improved,

in addition, the invention also effectively reduces the extra cost for producing the mould parts, such as the cost for producing copper, and the loss of mechanical parts caused by the discharging procedure, greatly saves the production cost, and the production method is shown as a mark B in figure 2, is simple and convenient, effectively solves the difficulty that the clear angle cannot meet the requirement, ensures that no round angle exists between the placing position and the clamping position during injection molding, and is also suitable for producing other connector mould parts with different types and smaller volume.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the embodiments of the disclosure may be suitably combined to form other embodiments as will be understood by those skilled in the art.

Claims

1. A processing method of a connector mould part is characterized by comprising the following steps: comprises a part body (1) and an embedded part (2),

firstly, manufacturing one end of a part body (1) into at least one injection molding model column (11) for injection molding to form a placement position;

secondly, manufacturing the embedded piece (2) into a sheet shape;

thirdly, the embedded part (2) is contacted with the injection molding model column (11);

fourthly, fixing the embedded part (2) and the injection molding model column (11) in a welding mode;

fifthly, removing redundant parts of the insert (2) according to the design to form a sheet (21) for injection molding of the clamping position, and combining the injection molding model column (11) and the sheet (21) to form an injection molding part;

in the first step, one end of a part body (1) is manufactured into a cuboid injection molding model column (11) in a cutting mode;

in the third step, the embedded part (2) is completely attached to the injection molding model column (11) to form an included angle C between the embedded part and the injection molding model column;

in the fourth step, position stepping point arrangement is carried out before welding, and the distance between welding spots on the same injection molding model column (11) is 0.6mm-1.0mm;

in the third step, a limiting groove (12) which is L-shaped is formed in the part body (1) through cutting, one end of the embedded part (2) is provided with a clamping part (22), the shape of the clamping part (22) is matched with that of the limiting groove (12), the embedded part is embedded into the limiting groove (12), and the other end of the embedded part (2) extends towards the injection molding model column (11).

2. The method of processing a connector mold part according to claim 1, wherein: and step four, polishing the surface of the embedded part (2) after the welding is finished.

3. A method of machining a connector die part according to claim 2, wherein: when the number of the injection molding model columns (11) is multiple, the injection molding model columns are arranged at intervals, in the fifth step, the interval positions (13) between the two injection molding model columns (11) are cut, the embedded part (2) is divided into a plurality of sheets (21) used for forming clamping positions, and each injection molding model column (11) and each sheet (21) form independent injection molding parts.

4. A method of machining a connector mold part according to claim 3, wherein: in the fifth step, the thin sheet (21) protrudes from both sides of the injection molding column (11).