CN116995512B - A stamping process for riveting clamping terminals in the mold - Google Patents
A stamping process for riveting clamping terminals in the mold Download PDFInfo
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- CN116995512B CN116995512B CN202311274852.5A CN202311274852A CN116995512B CN 116995512 B CN116995512 B CN 116995512B CN 202311274852 A CN202311274852 A CN 202311274852A CN 116995512 B CN116995512 B CN 116995512B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/048—Crimping apparatus or processes
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- Manufacturing & Machinery (AREA)
- Punching Or Piercing (AREA)
Abstract
本发明公开了一种模内铆接夹线端子的冲压工艺，包括步骤：冲定位孔、冲铆接孔、切边、预铆定位、折弯、铆接&切料、落废料、二次折弯和落料；冲铆接孔步骤对料带b的第二加工区的中间部分冲铆接孔；切边步骤在加工区和第二加工区上切出主要轮廓，形成预成型部和第二预成型部；预铆定位步骤在预成型部的中间部分打铆接凸包，折弯步骤对预成型部进行折弯成型产品A半成型，对第二预成型部按要求依次进行折弯成型，产品B成型，铆接&切料步骤将产品B输送至半成品A料带上并铆接到一起，二次折弯步骤继续折弯半成品A使其成型。通过上述方式，本发明仅借助冲压设备连续生产，铆点定位精度高，铆点不易脱落，节约生产时间，提升生产效率。
The invention discloses a stamping process for in-mold riveted clamping terminals, which includes the following steps: punching positioning holes, punching riveting holes, trimming, pre-riveting positioning, bending, riveting & cutting, dropping scrap, secondary bending and Blanking; the riveting hole punching step punches riveting holes in the middle part of the second processing area of the material strip b; the trimming step cuts out the main contours in the processing area and the second processing area to form a preformed part and a second preformed part ; The pre-riveting positioning step is to rivet the convex hull in the middle part of the pre-formed part, the bending step is to bend the pre-formed part to half-form product A, and bend the second pre-formed part in sequence as required to form product B. , the riveting & cutting step transports product B to the material belt of semi-finished product A and rivets them together. The secondary bending step continues to bend semi-finished product A to form it. Through the above method, the present invention only relies on stamping equipment for continuous production, the rivet point positioning accuracy is high, the rivet points are not easy to fall off, production time is saved, and production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of stamping processing, in particular to a stamping process of an in-mold riveting clamp wire terminal.
Background
The metal stamping is a common method for processing metal products, along with the diversification of customer demands, the design of a die is also suitable for various product demands, almost all workpieces with complex structures are manufactured by continuous stamping, the metal stamping is generally performed by taking a metal material belt with a certain width as a processing raw material, and then the final product structure is obtained by cutting, embossing, bending, riveting and other methods.
The wire clamping terminal is shown in fig. 1, a structure of the wire clamping terminal is provided with a product A and a product B which are riveted together, the wire clamping terminal stamping riveting process is divided into two sets of continuous die stamping forming, the product A is formed by stamping one set of continuous die stamping forming, the product B is formed by stamping the other set of continuous die stamping forming, then the two products are placed on a riveting machine for positioning and riveting, the design procedures are numerous, the relative position precision is difficult to ensure, the riveting point of the product A and the product B is a first folding surface 1B of the product A, and a second folding surface 1c parallel to the first folding surface 1B is arranged on the product A, because the riveting procedure needs enough space below the riveting pressure to place the riveting pressure upper die and the riveting pressure lower die, contradiction is generated with the riveting procedure, in addition, the positioning deviation of the stamping riveting point is large, the riveting point is easy to drop, the production period is long, and the production cost is high.
Based on the above defects and shortcomings, it is necessary to improve the prior art and design a stamping process of the in-mold riveting clamp wire terminal.
Disclosure of Invention
The invention mainly solves the technical problem of providing a stamping process of an in-mold riveting clamp line terminal, which is only produced continuously by virtue of stamping equipment, has high riveting point positioning precision, is not easy to fall off, saves production time, improves production efficiency and reduces production cost.
In order to solve the technical problems, the invention adopts a technical scheme that: the stamping process of the in-mold riveting wire clamping terminal comprises the following steps:
s1, punching and positioning: punching at least two positioning holes on two sides of a material belt a by taking the head end and two sides of the material belt a as positioning, wherein a processing unit range comprises a processing area and connecting parts positioned on two sides of the processing area in design, the positioning holes are positioned on the connecting parts, at least two second positioning holes are punched on one side of the material belt b by taking the head end and two sides of the material belt b as positioning, the processing unit range comprises a second processing area and a second connecting part positioned on one side of the second processing area in design, the conveying direction of the material belt b is horizontally perpendicular to the conveying direction of the material belt a, and the material belt b is positioned below the material belt a;
s2: punching riveting holes: punching a riveting hole on the middle part of the second processing area of the material belt b by taking the second positioning hole as a reference;
s3, trimming: cutting out the main outline of the product A at the edge and the middle part of the processing area by taking the positioning hole as a reference to form a preformed part; cutting out a main contour of the product B at the edge of the second processing area by taking the second positioning hole as a reference to form a second preformed part;
s4, pre-riveting positioning: taking the positioning hole as a reference, riveting a convex hull on the middle part of the preformed part; the riveting convex hulls and the riveting holes are projected and overlapped in the vertical direction in the overlapping area of the material belt a and the material belt b;
s5, bending: sequentially bending the preformed part along a head folding edge and a root folding edge which are perpendicular to the conveying direction of the material belt a by taking the positioning hole as a reference to form two symmetrical primary bending surfaces, sequentially bending the tail parts of the primary bending surfaces along two first folding edges which are parallel to the conveying direction of the material belt a to form two primary bending surfaces which are vertically opposite, and bending the root parts of the two opposite primary bending surfaces along a second folding edge which is perpendicular to the conveying direction of the material belt a to form two vertically opposite primary bending surfaces; taking the second positioning hole as a reference, bending the second preformed part (bending along two folds perpendicular to the conveying direction of the material belt B to form a continuously connected riveting surface, a connecting surface and a bending surface, and performing multiple profiling bending on the connecting surface to form a curved surface so as to deform the material of the second preformed part into a product B;
s6, riveting and blanking: riveting the riveting convex hulls and the riveting holes which are opposite up and down by using the positioning holes and the second positioning holes as references through upper and lower riveting punches, and simultaneously synchronously pressing and cutting the material connection of the material belt B by using the cutting punches, and conveying the product B along with the material belt a;
s7, waste falling: cutting off a second connecting part on the material belt b which is conveyed along with the material belt a by taking the positioning hole as a reference;
s8, secondary bending: taking the positioning hole as a reference, bending down the root parts of two vertically opposite primary bending surfaces along a third folding edge parallel to the conveying direction of the material belt a to form two horizontally left and right opposite primary bending surfaces, and bending down the preformed part along two fourth folding edges perpendicular to the conveying direction of the material belt a to form two opposite first bending surfaces and second bending surfaces, so that the preformed part material is deformed into a product A;
s9, blanking: and cutting the product A and the product B which are riveted together from the connecting part by taking the positioning hole as a reference.
Preferably, after the step of punching the rivet hole, a chamfer is punched on the back surface of the rivet hole.
Preferably, in the trimming step, the inner contour is cut in the middle of the processing area and the two outer contours are cut at the connecting parts of the processing area and the two sides in three steps; in the trimming step, the outer contour of the product B is cut at the joint of the second processing area and the two sides in two steps.
Preferably, in the bending step, the bending direction of the head hem is downward, the bending direction of the root hem is upward, and the upper top adjustment is performed on the middle part below the primary bending surface after the root hem is bent.
Preferably, the first folding edge, the second folding edge, the third folding edge and the fourth folding edge in the bending step and the secondary bending step are divided into two steps of 45-degree bending and 90-degree bending.
Compared with the prior art, the invention has the beneficial effects that:
the product A and the product B are synchronously and continuously produced by virtue of the stamping equipment, the product B is conveyed to a material belt of the product A in the stamping process, the riveting convex hulls and the riveting holes which are opposite up and down are riveted together by the upper riveting punch and the lower riveting punch, so that the production time is saved, the production efficiency is improved, and the production cost is reduced;
the front surface of the riveting hole is provided with a stamping pedal angle, so that the subsequent riveting convex hulls are conveniently led into the riveting hole, the back surface of the riveting hole is stamped and chamfered, the riveting convex hulls are conveniently stamped and flatly riveted materials are expanded to the chamfer, the convex hulls are prevented from being higher than the product plane, the positioning precision of riveting points is high, and the riveting points are not easy to fall off;
the riveting hole is punched before the trimming step of the material belt B, because the main outline of the product B is in a relatively narrow strip shape, the riveting hole is punched before the trimming, and the stability and the positioning precision of the material belt can be ensured;
the trimming step firstly cuts the inner contour and then cuts the outer contour in two steps, so that the appearance precision of the preformed part can be ensured.
Drawings
Fig. 1 is a schematic structural view of a product wire clamping terminal.
Fig. 2 is a schematic diagram of a change in a material strip in a stamping process of an in-mold riveting clamp terminal.
Fig. 3 is a partial enlarged view of position C in fig. 2.
Fig. 4 is a partial enlarged view of the D position of fig. 2.
Fig. 5 is a partial enlarged view of the E position in fig. 2.
Fig. 6 is a partial enlarged view of the F position in fig. 2.
Fig. 7 is a partial enlarged view of the G position in fig. 2.
Fig. 8 is a schematic diagram showing a change of the junction between the material strip a and the material strip b in the stamping process of the in-mold riveting clamp terminal.
Fig. 9 is a partial enlarged view of the H position in fig. 2.
Wherein, 1, product A,2, product B;
11. positioning holes 12, processing areas 13, connecting parts 14, preformed parts 15, riveting convex hulls 16, head folds 17, root folds 18, first folds 19, second folds 110, third folds 111 and fourth folds;
21. a second positioning hole 22, a second processing area 23, a second connecting part 24, a second preformed part 25, a riveting hole 26 and a flanging;
1a, primary bending surface, 1b, first bending surface, 1c, second bending surface, 2a, riveting surface, 2b, connecting surface, 2c and bending surface.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Referring to fig. 1 to 9, an embodiment of the present invention includes:
the stamping process of the in-mold riveting wire clamping terminal comprises the following steps of:
s1, punching and positioning: punching at least two positioning holes 11 on two sides of a material belt a by taking the head end and two sides of the material belt a as positioning, wherein a processing unit range comprises a processing area 12 and connecting parts 13 positioned on two sides of the processing area in design, the positioning holes 11 are positioned on the connecting parts 13, at least two second positioning holes 21 are punched on one side of the material belt b by taking the head end and two sides of the material belt b as positioning, the processing unit range comprises a second processing area 22 and a second connecting part 23 positioned on one side of the second processing area in design, the conveying direction of the material belt b is horizontally perpendicular to the conveying direction of the material belt a, and the material belt b is positioned below the material belt a;
s2: punching riveting holes: the second positioning hole 21 is used as a reference, a riveting hole 25 is punched in the middle of a second processing area 22 of the material belt b, a punching pedal angle is arranged on the front surface of the riveting hole 25, so that the subsequent riveting convex hulls 15 are conveniently led into the riveting hole 25, a chamfer is punched on the back surface of the riveting hole 25 after the step of punching the riveting hole, the riveting convex hulls 15 are conveniently punched, the riveting material expands to the chamfer, and the convex hulls are prevented from being higher than the product plane;
s3, trimming: cutting out main contours of a product A at the edge and the middle of the processing area 12 by taking the positioning hole 11 as a reference, cutting out inner contours at the middle of the processing area 12 and cutting out two outer contours at the processing area 12 and the connecting parts 13 at the two sides in three steps, pre-punching the inner contours with smaller area, and re-punching the outer contours at the two sides with large area, so that the precision of the pre-forming part 14 can be ensured, and the pre-forming part 14 is formed; cutting a main contour of the product B at the edge of the second processing area 22 by taking the second positioning hole 21 as a reference, cutting an outer contour of the product B at the joint of the second processing area 22 and two sides in two steps to form a second preformed part 24, and punching a riveting hole before the trimming step of the material belt B, wherein the main contour of the product B is in a relatively narrow strip shape, and the riveting hole is punched before trimming, so that the stability and the positioning precision of the material belt can be ensured, otherwise, the riveting hole is easy to punch;
s4, pre-riveting positioning: a riveting convex hull 15 is riveted on the middle part of the preformed part 14 by taking the positioning hole 11 as a reference; the riveting convex hulls 15 and the riveting holes 25 are projected and overlapped in the vertical direction in the overlapping area of the material belt a and the material belt b;
s5, bending: taking the positioning hole 11 as a reference, sequentially bending the preformed part 14 along a head folded edge 16 and a root folded edge 17 which are perpendicular to the conveying direction of the material belt a to form two symmetrical primary folded surfaces 1a, wherein the bending direction of the head folded edge 16 is downward, the bending direction of the root folded edge 17 is upward, and the middle part below the primary folded surfaces 1a is subjected to upward adjustment after the root folded edge 17 is bent, so that the product bending has rebound, the upward adjustment can adjust the angle of the product, the tail part of the primary folded surfaces 1a is sequentially bent along two first folded edges 18 which are parallel to the conveying direction of the material belt a to form two primary folded surfaces 1a which are opposite up and down, and the root part of the two opposite primary folded surfaces 1a is bent along a second folded edge 19 which is perpendicular to the conveying direction of the material belt a to form two primary folded surfaces 1a which are opposite vertically; bending the second preformed part 24 along two folds 26 perpendicular to the conveying direction of the material tape B by taking the second positioning hole 21 as a reference to form a continuously connected riveting surface 2a, a connecting surface 2B and a bending surface 2c, and performing multiple profiling bending on the connecting surface 2B to form a curved surface so as to deform the material of the second preformed part 24 into a product B;
s6, riveting and blanking: riveting the riveting convex hulls 15 and the riveting holes 25 which are opposite up and down by using the positioning holes 11 and the second positioning holes 21 as references through upper and lower riveting punches, simultaneously synchronously pressing down the cutting punch to cut the material of the material belt B, and conveying the product B along with the material belt a;
s7, waste falling: cutting off a second connecting part 23 on the material strip b which is conveyed along with the material strip a by taking the positioning hole 11 as a reference;
s8, secondary bending: taking the positioning hole 11 as a reference, bending down the root parts of two vertically opposite primary bending surfaces 1a along a third folding edge 110 parallel to the conveying direction of the material belt a to form two horizontally left and right opposite primary bending surfaces 1a, and bending down the preformed part 14 along two fourth folding edges 111 perpendicular to the conveying direction of the material belt a to form two opposite first bending surfaces 1b and second bending surfaces 1c, so that the preformed part 14 is deformed into a product A;
s9, blanking: the product a and the product B riveted together are cut from the connecting portion 13 with the positioning hole 11 as a reference.
The first folded edge 18, the second folded edge 19, the third folded edge 110 and the fourth folded edge 111 in the bending step and the secondary bending step are divided into two steps of 45-degree bending and 90-degree bending.
The stamping process for the in-mold riveting clamp line terminal overcomes the defects in the prior art, does not need the cooperation production of a plurality of continuous molds and riveting equipment, does not need to carry and position back and forth, and only uses the stamping equipment for continuous production, so that the riveting point positioning precision is high, the riveting point is not easy to fall off, the production time is saved, the production efficiency is improved, and the production cost is reduced.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (5)
1. A stamping process of an in-mold riveting wire clamping terminal is characterized by comprising the following steps of: the method comprises the following steps:
s1, punching and positioning: punching at least two positioning holes (11) on the two sides of a material belt a by taking the head end and the two sides of the material belt a as positioning, wherein a processing unit range comprises a processing area (12) and connecting parts (13) positioned on the two sides of the processing area (12) in design, the positioning holes (11) are positioned on the connecting parts (13), at least two second positioning holes (21) are punched on one side of the material belt b by taking the head end and the two sides of the material belt b as positioning, the processing unit range comprises a second processing area (22) and a second connecting part (23) positioned on one side of the second processing area in design, the conveying direction of the material belt b is horizontally perpendicular to the conveying direction of the material belt a, and the material belt b is positioned below the material belt a;
s2: punching riveting holes: punching a riveting hole (25) on the middle part of a second processing area (22) of the material belt b by taking the second positioning hole (21) as a reference;
s3, trimming: cutting out the main contour of the product A at the edge and the middle part of the processing area (12) by taking the positioning hole (11) as a reference to form a preformed part (14); cutting out a main contour of the product B at the edge of the second processing area (22) by taking the second positioning hole (21) as a reference to form a second preformed part (24);
s4, pre-riveting positioning: a riveting convex hull (15) is riveted on the middle part of the preformed part (14) by taking the positioning hole (11) as a reference; the riveting convex hulls (15) and the riveting holes (25) are projected and overlapped in the vertical direction in the overlapping area of the material belt a and the material belt b;
s5, bending: taking the positioning hole (11) as a reference, sequentially bending the preformed part (14) along a head folded edge (16) and a root folded edge (17) which are perpendicular to the conveying direction of the material belt a to form two symmetrical primary bending surfaces (1 a), sequentially bending the tail parts of the primary bending surfaces (1 a) along two first folded edges (18) which are parallel to the conveying direction of the material belt a to form two primary bending surfaces (1 a) which are opposite up and down, and bending the root parts of the two opposite primary bending surfaces (1 a) along a second folded edge (19) which is perpendicular to the conveying direction of the material belt a to form two primary bending surfaces (1 a) which are opposite vertically; bending the second preformed part (24) along two folded edges (26) perpendicular to the conveying direction of the material belt B by taking the second positioning hole (21) as a reference to form a continuously connected riveting surface (2 a), a connecting surface (2B) and a bending surface (2 c), and performing multiple copying bending on the connecting surface (2B) to form a curved surface so as to deform the material of the second preformed part (24) into a product B;
s6, riveting and blanking: riveting convex hulls (15) and riveting holes (25) which are opposite up and down are riveted together through upper and lower riveting punches by taking the positioning holes (11) and the second positioning holes (21) as references, and meanwhile, the cutting punches synchronously press down to cut the material connection of the material belt B, and the product B is conveyed along with the material belt a;
s7, waste falling: cutting off a second connecting part (23) on the material belt b which is conveyed along with the material belt a by taking the positioning hole (11) as a reference;
s8, secondary bending: taking the positioning hole (11) as a reference, bending down the root parts of two vertically opposite primary bending surfaces (1 a) along a third folding edge (110) parallel to the conveying direction of the material belt a to form two horizontally opposite primary bending surfaces (1 a), bending down the preformed part (14) along two fourth folding edges (111) perpendicular to the conveying direction of the material belt a to form two opposite first bending surfaces (1 b) and second bending surfaces (1 c), and deforming the material of the preformed part (14) into a product A;
s9, blanking: and cutting the product A and the product B which are riveted together from the connecting part (13) by taking the positioning hole (11) as a reference.
2. The stamping process of the in-mold riveting clamp line terminal according to claim 1, wherein: and after the riveting hole punching step, punching a chamfer on the back surface of the riveting hole (25).
3. The stamping process of the in-mold riveting clamp line terminal according to claim 1, wherein: in the trimming step, the inner contour is cut in the middle of the processing area (12) and the two outer contours are cut in the processing area (12) and the connecting parts (13) at the two sides in three steps; in the trimming step, the outer contour of the product B is cut out in two steps at the junction of the second processing area (22) and the two sides.
4. The stamping process of the in-mold riveting clamp line terminal according to claim 1, wherein: in the bending step, the bending direction of the head folded edge (16) is downward, the bending direction of the root folded edge (17) is upward, and the upper top adjustment is performed on the middle part below the primary bent surface (1 a) after the root folded edge (17) is bent.
5. The stamping process of the in-mold riveting clamp line terminal according to claim 1, wherein: the first folded edge (18), the second folded edge (19), the third folded edge (110) and the fourth folded edge (111) in the bending step and the secondary bending step are divided into two steps of 45-degree bending and 90-degree bending.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311274852.5A CN116995512B (en) | 2023-09-28 | 2023-09-28 | A stamping process for riveting clamping terminals in the mold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311274852.5A CN116995512B (en) | 2023-09-28 | 2023-09-28 | A stamping process for riveting clamping terminals in the mold |
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| CN116995512A CN116995512A (en) | 2023-11-03 |
| CN116995512B true CN116995512B (en) | 2023-12-26 |
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| CN118060420B (en) * | 2024-04-18 | 2024-07-30 | 苏州铭峰精密机械有限公司 | Continuous stamping process for beetle-shaped vibrator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610978A (en) * | 2012-04-12 | 2012-07-25 | 东莞市林远实业有限公司 | Method and device for machining motor carbon brush carrier |
| CN108941333A (en) * | 2018-09-14 | 2018-12-07 | 宁波美高五金科技有限公司 | The production mould and its production method of GBT mounting plate component |
| CN113579147A (en) * | 2021-06-01 | 2021-11-02 | 无锡惠晟精密元器件有限公司 | Double-material-belt in-mold formed silver wire riveting process and special mold |
| CN116174582A (en) * | 2022-12-30 | 2023-05-30 | 江苏艾锐博精密金属科技有限公司 | An in-mold riveting stamping process |
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2023
- 2023-09-28 CN CN202311274852.5A patent/CN116995512B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610978A (en) * | 2012-04-12 | 2012-07-25 | 东莞市林远实业有限公司 | Method and device for machining motor carbon brush carrier |
| CN108941333A (en) * | 2018-09-14 | 2018-12-07 | 宁波美高五金科技有限公司 | The production mould and its production method of GBT mounting plate component |
| CN113579147A (en) * | 2021-06-01 | 2021-11-02 | 无锡惠晟精密元器件有限公司 | Double-material-belt in-mold formed silver wire riveting process and special mold |
| CN116174582A (en) * | 2022-12-30 | 2023-05-30 | 江苏艾锐博精密金属科技有限公司 | An in-mold riveting stamping process |
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| CN116995512A (en) | 2023-11-03 |
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