CN112688143A

CN112688143A - ECU small-size PIN needle dense arrangement production process

Info

Publication number: CN112688143A
Application number: CN202110053181.4A
Authority: CN
Inventors: 闻金凤; 朱东平
Original assignee: Interplex Electronics Hangzhou Co Ltd
Current assignee: Ennovi Advanced Mobility Solutions Hangzhou Co Ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-04-20

Abstract

The invention discloses a production process for densely arranging small-size PIN PINs of an ECU (electronic control Unit), which belongs to the technical field of the ECU and mainly comprises the following steps: s1, stamping first needle shapes, connecting a plurality of first needle shapes into a first single row of connecting needles through connecting parts, and then rolling; s2, electroplating the first single-row material connecting needle, and then rolling; s3, stamping second needle shapes, connecting the second needle shapes into a second single-row connecting needle through a connecting part, and then rolling; s4, electroplating a second single-row material connecting needle, and then rolling; s5, flattening the first connecting needle and the second connecting needle, and cutting off the connecting part; s6, clamping a plurality of first needle shapes and second needle shapes in the same linear direction by the manipulator, and then simultaneously inserting the needle shapes into the main body hole of the ECU; and S7, bending the same position of the first needle type and the second needle type inserted into the main body cavity to form a bent part. The invention has the effects of optimizing the forming process, improving the process integration level, further reducing the reject ratio of products and improving the stability.

Description

ECU small-size PIN needle dense arrangement production process

Technical Field

The invention relates to the technical field of ECU (electronic control unit), in particular to a production process for densely arranging small-size PIN PINs of an ECU.

Background

The ECU is an electronic control unit of an automobile, and the main components of the ECU comprise a microprocessor, a memory/input/output interface, an analog-to-digital converter, a shaping circuit, a driving circuit and other large-scale integrated circuits, and the ECU is divided into a main body frame and an internal control unit. The PIN needle of the shell frame is used as a chip carrier of the integrated circuit, and is a key structural member which realizes the electrical connection between the leading-out end of the internal circuit of the chip and an external lead by means of bonding materials (gold wires, aluminum wires and copper wires) to form an electrical circuit.

The technology is not integrated enough when connecting metal needle and casing frame among the prior art, and when the production was arranged the needle tiny and many and each row needle position degree required high product, the metal was arranged the needle and is differed, distribute widely for whole product proportion, leads to the dress piece to produce inefficiency, and defective rate is high in the batch production, poor stability, and this problem is waited to solve urgently.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the production process for densely arranging the small-size PIN PINs of the ECU, which has the effects of optimizing the forming process, improving the process integration level, further reducing the reject ratio of products and improving the stability.

A production process for densely arranging small-size PIN PINs of an ECU comprises the following steps:

s1, stamping first needle shapes, connecting a plurality of first needle shapes into a first single row of connecting needles through connecting parts, and then rolling;

s2, electroplating the first single-row material connecting needle, and then rolling;

s3, stamping second needle shapes, connecting the second needle shapes into a second single-row connecting needle through a connecting part, and then rolling;

s4, electroplating a second single-row material connecting needle, and then rolling;

s5, flattening the first connecting needle and the second connecting needle, and cutting off the connecting part to separate the first connecting needle and the second connecting needle into a first needle type and a second needle type;

s6, clamping a plurality of first needle shapes and second needle shapes in the same linear direction by the manipulator, and then simultaneously inserting the needle shapes into the main body hole of the ECU;

s7, bending the same positions of the first needle type and the second needle type inserted into the main body opening to form bent parts;

s8, repeating the operations S6 and S7 no less than twice;

and S9, sleeving the bent parts of the first needle type and the second needle type with injection molding plates.

The invention is further configured to: in the rolling processes of the first single-row material connecting needle and the second single-row material connecting needle in the steps S1, S2, S3 and S4, the burrs face downwards.

The invention is further configured to: the width directions of the first single-row material connecting needle in the rolling process in the steps S1 and S2 are opposite.

The invention is further configured to: the width directions of the second single-row material connecting needle in the rolling process in the steps S3 and S4 are opposite.

The invention is further configured to: in step S6, the number of the two rows of the first needle patterns and the second needle patterns that are gripped by the manipulator in the same length direction is seventeen first needle patterns, two second needle patterns, and twenty-one first needle patterns, respectively.

The invention is further configured to: the operations of S6 and S7 in step S8 are repeated three times.

The invention is further configured to: in step S9, the injection plate and the body cavity are fixed by bolts.

In conclusion, the invention has the following beneficial effects: after a first needle type and a second needle type are connected into a first single row of material connecting needles and a second single row of material connecting needles through a material connecting part through stamping, electroplating is carried out synchronously, and finally the material connecting part is cut off through punching, then two rows of the first needle type and the second needle type are simultaneously arranged in a main body cave of an ECU (electronic control Unit) by a practical manipulator, at the moment, the arrangement position of each first needle type and the arrangement position of each second needle type are the same, then each row of the first needle type and the second needle type are synchronously bent, finally an injection molding plate is sleeved on the bending parts of the first needle type and the second needle type, the injection molding plate and the main body cave are screwed and fixed through bolts, the installation and bending shapes of all the first needle type and the second needle type are consistent, the integration of the whole process is better, the forming process is optimized, the process integration is improved, the product reject ratio is reduced, and the stability is improved.

Drawings

FIG. 1 is a schematic diagram of the present invention for embodying steps S1 and S2;

FIG. 2 is a schematic diagram of the present invention for embodying steps S3 and S4;

FIG. 3 is a schematic diagram of the present invention for embodying steps S5 and S6;

FIG. 4 is a schematic diagram of the present invention for embodying steps S6 and S7;

FIG. 5 is a schematic representation of the present invention embodying S8;

fig. 6 is a schematic diagram of the present invention for embodying S9.

In the figure, 1, a first single row of material connecting needles; 11. a first needle type; 12 a material connecting part; 2. a second single row of connecting needles; 21. a second needle type; 3. a main body aperture; 4. a bending part; 5. and (5) molding the plate.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. In the present specification, the terms "upper", "lower", "left", "right" and "middle" are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial technical changes and modifications.

Example (b):

as shown in fig. 1 to 6, the production process for densely arranging the small-size PIN PINs of the ECU designed in the present invention includes the following steps:

s1, stamping first needle shapes 11, and rolling after a plurality of first needle shapes 11 are connected into a first single-row connecting needle 1 through a connecting part 12;

s2, electroplating the first single-row material connecting needle 1, and then rolling;

s3, stamping second needle shapes 21, and winding after connecting a plurality of second needle shapes 21 into second single-row connecting needles 2 through connecting parts 12;

s4, electroplating the second single-row material connecting needle 2, and then rolling;

s5, flattening the first connecting needle and the second connecting needle, cutting off the connecting part 12, and separating the first connecting needle and the second connecting needle into a first needle type 11 and a second needle type 21 which are independent;

s6, clamping a plurality of first needles 11 and second needles 21 in the same linear direction by a manipulator, and then simultaneously inserting the needles into the main body hole 3 of the ECU;

s7, bending the same positions of the first needle patterns 11 and the second needle patterns 21 inserted into the main body cave mouth 3 to form bent parts 4;

s8, repeating the operations S6 and S7 no less than twice;

and S9, sleeving the bending parts 4 of the first needle type 11 and the second needle type 21 with injection molding plates 5.

In the winding processes of the first single-row material connecting needle 1 and the second single-row material connecting needle 2 in the steps S1, S2, S3 and S4, the burrs face downwards.

As shown in fig. 1 and 2, the width directions of the first single row needle 1 in the winding process in steps S1 and S2 are opposite, and the width directions of the second single row needle 2 in the winding process in steps S3 and S4 are opposite.

As shown in fig. 3 and 4, the number of the two rows of the first needle patterns 11 and the second needle patterns 21 that are gripped by the manipulator in the same longitudinal direction in step S6 is seventeen first needle patterns 11, two second needle patterns 21, and twenty-one first needle patterns 11, respectively.

As shown in fig. 5 and 6, the operations of S6 and S7 in step S8 are repeated three times, and the injection plate 5 is fixed to the body pocket 3 by bolts in step S9.

The implementation principle of the above embodiment is as follows: the first needle type 11 and the second needle type 21 are connected into a first single row material connecting needle 1 and a second single row material connecting needle 2 through a material connecting part 12 by punching, then electroplating is synchronously carried out, finally the material connecting part 12 is cut off by punching, then the utility robot loads two rows of the first needle patterns 11 and the second needle patterns 21 into the main body hole 3 of the ECU simultaneously, at the moment, the loading position of each first needle pattern 11 and the loading position of each second needle pattern 21 are the same, then bend every row of first needle type 11 and second needle type 21 in step, cover injection moulding plate 5 on the portion 4 of bending of first needle type 11 and second needle type 21 at last, screw up injection moulding plate 5 and main part cave mouth 3 with the bolt and fix, the installation and the shape of bending of all first needle types 11 and second needle types 21 are unanimous, whole process integrated nature is better, the shaping process has been optimized, the technology integrated level has been improved, and then reduce the product defective rate and improve stability.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The dense arrangement production process of the small-size PIN PINs of the ECU is characterized by comprising the following steps of: the method comprises the following steps:

s1, stamping first needle shapes (11), and winding after connecting a plurality of first needle shapes (11) into a first single-row connecting needle (1) through connecting parts (22) and (12);

s2, electroplating the first single-row material connecting needle (1), and then rolling;

s3, stamping second needle shapes (21), and winding after connecting a plurality of second needle shapes (21) into a second single-row connecting needle (2) through a connecting part (12);

s4, electroplating the second single-row material connecting needle (2), and then rolling;

s5, flattening the first connecting needle and the second connecting needle, cutting off the connecting part (12) and separating the first connecting needle and the second connecting needle into a first needle type (11) and a second needle type (21) which are independent;

s6, clamping a plurality of first needle patterns (11) and second needle patterns (21) in the same linear direction by a manipulator, and simultaneously inserting the needle patterns into a main body hole (3) of the ECU;

s7, bending the same position of a plurality of first needle shapes (11) and second needle shapes (21) inserted into the main body cave mouth (3) to form a bent part (4);

s8, repeating the operations S6 and S7 no less than twice;

and S9, sleeving the bending parts (4) of the first needle type (11) and the second needle type (21) with injection molding plates (5).

2. The dense arrangement production process of ECU small-size PIN PINs as claimed in claim 1, wherein: and in the S1, S2, S3 and S4, the burrs face downwards in the rolling process of the first single-row material connecting needle (1) and the second single-row material connecting needle (2).

3. The dense arrangement production process of the ECU small-size PIN PINs as claimed in claim 2, wherein the dense arrangement production process comprises the following steps: the width directions of the first single-row material connecting needle (1) in the rolling process in the steps S1 and S2 are opposite.

4. The dense arrangement production process of the ECU small-size PIN PINs as claimed in claim 3, wherein the dense arrangement production process comprises the following steps: the width directions of the second single-row material connecting needle (2) in the rolling processes in the steps S3 and S4 are opposite.

5. The dense arrangement production process of ECU small-size PIN PINs as claimed in claim 1, wherein: in step S6, the manipulator picks up two rows of the first needle type (11) and the second needle type (21) in the same longitudinal direction, and the number of the first needle type (11) and the second needle type (21) is seventeen, two second needle types (21), and twenty-one first needle type (11), respectively.

6. The dense arrangement production process of ECU small-size PIN PINs as claimed in claim 1, wherein: the operations of S6 and S7 in step S8 are repeated three times.

7. The dense arrangement production process of the ECU small-size PIN PINs as claimed in claim 6, wherein the dense arrangement production process comprises the following steps: in step S9, the injection plate (5) and the main body pocket (3) are fixed by bolts.