CN103746208A - Contact elastic piece and high-precision manufacturing method thereof - Google Patents
Contact elastic piece and high-precision manufacturing method thereof Download PDFInfo
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- CN103746208A CN103746208A CN201410009061.4A CN201410009061A CN103746208A CN 103746208 A CN103746208 A CN 103746208A CN 201410009061 A CN201410009061 A CN 201410009061A CN 103746208 A CN103746208 A CN 103746208A
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Abstract
The invention provides a contact elastic piece and a high-precision manufacturing method thereof and solves the problem that a high-precision requirement on a product can not be achieved by an existing manufacturing process which is subjected to regulating after forming. The contact elastic piece comprises a material strap, wherein the material strap is strip-shaped, the material strap is continuously provided with a plurality of groups of products, a plurality of product single bodies are arranged along a longitudinal direction of each group of products, deformation prevention knife edges are arranged among each group of products, and two side edges of the material strap are uniformly provided with a plurality of location holes. The high-precision manufacturing method of the contact elastic piece comprises the production steps of a stretching and bending process of (1) printing a word film mark; (2) punching the location holes; (3) punching the deformation prevention knife edges; (4) cutting the shapes of the products; 5) forming and punching the products: firstly carrying out a stretching and pre-folding project and then carrying out a forming project; (6) detecting formed products. According to the manufacturing method of the contact elastic piece, provided by the invention, the manufacturing process is changed into a mode of firstly carrying out pulling and pre-folding and then carrying out forming, the tolerance is increased from +/-0.03 mm to within +/-0.01 mm, and the high-precision level of a final finished product of the contact elastic piece is obviously increased.
Description
Technical field
The invention belongs to electronic component processing technique field, relate to a kind of contact flat spring product and its production method, particularly a kind of contact flat spring and method for high-precision manufacturing thereof.
Background technology
Along with Chinese society economy and scientific and technological fast development, the also more and more technicalization of the technology of electronic product aspect, first evolve, people are more prone to multi-functional, demand direction is easily concentrated and carried to performance.The body development trend of electronic product is more and more less thus, more and more precise treatment and integrated.Therefore its inner each important electronic component is also towards thin, little, light, requires high-precision future development simultaneously.
In order to tackle the mass-produced demand of contact flat spring product, Design of Dies adopts one to rush many forms; Also require the bump height tolerance of contact flat spring product by script +/-0.03mm, to be promoted to the precision grade of +/-0.01mm simultaneously.In industry, produce about this series products of contact flat spring at present, its molding mode is first bending and molding, then to adjust engineering, adjusts to reach again the dimensional requirement of product.But in actual job experience, existing manufacturing process mode is from bending and molding to adjusting precision, the size management and control that realizes contact flat spring product has been to be quite difficult in the precision grade of +/-0.03mm, and rush many forms and management and control in the precision grade of +/-0.01mm for one, this requirement just cannot realize at all.
Summary of the invention
The object of the invention is to have the problems referred to above for existing technology, proposed a kind of in contact flat spring production program, adopt tensile foldable technique, and the technological means of the every production routine of appropriate design, make finished product reach highly precisely contact flat spring and the method for high-precision manufacturing thereof of rank.
Object of the present invention can realize by following technical proposal: the method for high-precision manufacturing of contact flat spring, comprises the production stage of following employing tensile foldable technique:
1), on each finished product precalculated position, print word film mark;
2), punching press location hole, then in operation, in location hole, wear pilot pin;
3), on material strip, go out the anti-deformation edge of a knife;
4), product shape cutting;
5), formed product punching press:
A, first punching press are the product that symmetry is positioned at avris position, and this punching press program at least has stretching and pre-folds engineering and moulding engineering;
B, punching press is the product that symmetry is positioned at medium position again, and this punching press program at least has to stretch and pre-folds engineering and moulding engineering;
6), detect shaped article: use 100x microscope to carry out every dimensional measurement to shaped article.
In the method for high-precision manufacturing of this contact flat spring, requiring to produce is to rush many designs, and the bump height of product requirement tolerance is +/-0.01mm.In first step, on the product monomer of every group, print different word film marks, so that follow-up, repair a die or easily differentiate during tracing problem based point.In second step, after punching press location hole step, the pilot pin being positioned on stripper plate immediately penetrates location hole, forms the precisely really position guarantee of follow-up feeding program and every procedure.In third step, before tensile foldable operation, first on material strip, go out an anti-deformation edge of a knife, in order to avoid stress is pullled the problem that causes material strip distortion and cannot produce when tensile foldable.In the 4th step, adopt a plurality of type cutter head synchronous cutting of cutting, to make a plurality of product monomers of every group.In the 5th step, during bump height moulding, need highly suitably be divided into multistep operation according to it and complete, make thus the size of product unified stable, the useful life of simultaneously remarkable improving product; And during moulding, need consider that diverse location place material strip intensity is different, therefore relatively also difference to some extent when moulding is stressed, therefore stressed approaching avris position product carries out in same engineering, medium position product carries out in another engineering, controls thus the precision of each product monomer in +/-0.01mm.In the 6th step, use and carry out the accurate detection of size with respect to the more high-precision 100x microscope of 50x microscope, with the bad problem of size of avoiding causing because of measure error.
In the method for high-precision manufacturing of above-mentioned contact flat spring, in first step, material strip support supports on son in seal number, enters the word film mark of son recessed material face of formation on material strip by withholding marking.Print word film mark as the first step starting, be can produce the material phenomenon that rises when printing word film mark, and then have influence on the overall dimension of product monomer.
In the method for high-precision manufacturing of above-mentioned contact flat spring, in second step, material strip support supports on son in punching, by pressing down pierce punch, at the place, location of material strip, goes out location hole.
In the method for high-precision manufacturing of above-mentioned contact flat spring, in third step material strip support in shearing lead position enter on son, by pressing down cutting punch, on material strip, go out the anti-deformation edge of a knife.
In the method for high-precision manufacturing of above-mentioned contact flat spring, in the 4th step material strip support in the type of cutting lead position enter on son, by pressing down, cut the external form that type cutter head cuts out product on material strip.
In the method for high-precision manufacturing of above-mentioned contact flat spring, in the 5th step, the first support of material strip is led position and is entered on son in pre-folding, and by pressing down, pre-folds punching pin and on material strip, stretches and fold in advance bending salient point; Making material strip support lead position in moulding, to enter son upper again, by down-pressing forming punching pin at material strip upper punch extrusion molding salient point.In stretching, pre-fold the bending bump height that forms in engineering lower than the moulding bump height forming in moulding engineering, stretch thus and pre-fold the effect that engineering plays pre-stretching unloading stress, through the processing of repeatedly segmentation engineering, could realize one rush many and tolerance be positioned at +/-0.01mm with high-precision requirement.
A contact flat spring, comprises the material strip that is strip of sheet, and some set products are set on described material strip continuously, and every set product is longitudinally arranged some product monomers, between described every set product, offers the anti-deformation edge of a knife, and the dual-side of described material strip is evenly offered some location holes.
In this contact flat spring, every group is parallel columns and establishes totally four product monomers, is arranged in order one to four word film mark from top to bottom, and product monomer one is positioned at upper and lower both sides side position with product monomer four thus, and product monomer two is positioned at medium position with product monomer three.The anti-deformation edge of a knife is strip, and it is vertically arranged between adjacent set product.The outside, two ends of the anti-deformation edge of a knife respectively offers location hole, and both sides location hole is symmetrical.
In above-mentioned contact flat spring, on described product monomer, print and establish word film mark.
In above-mentioned contact flat spring, described material strip is stainless steel lamellar body.
Compared with prior art, this contact flat spring and method for high-precision manufacturing thereof are for the precision improvement demand of contact flat spring, the manufacturing process that in abandoning tradition, first moulding is adjusted again, change is adjusted into first and stretches and pre-fold and aftershaping, by tolerance +/-0.03mm, be promoted in +/-0.01mm, successfully overcome the technical barrier that is difficult to breakthrough, significantly promoted the high accuracy rank of contact flat spring final finished, become in the same industry and become the outstanding person in product technology.
Accompanying drawing explanation
Fig. 1 is the structural representation of this contact flat spring.
In figure, 1, material strip; 2, location hole; 3, the anti-deformation edge of a knife; 4, product monomer.
Embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Figure 1, this contact flat spring comprises the material strip 1 that is strip of sheet, and this material strip 1 is specially stainless steel lamellar body.Some set products are set on material strip 1 continuously, and every group is parallel columns and establishes totally four product monomers 4.On product monomer 4, print and establish word film mark, be arranged in order one to four word film mark from top to bottom, product monomer 4 one is positioned at upper and lower both sides side position with product monomer 4 four thus, and product monomer 4 two is positioned at medium position with product monomer 4 three.Between every set product, offer the anti-deformation edge of a knife 3, this anti-deformation edge of a knife 3 is strip, is specifically vertical shape and is arranged between adjacent set product.The outside, two ends of the anti-deformation edge of a knife 3 respectively offers location hole 2, and both sides location hole 2 is symmetrical.
The method for high-precision manufacturing of contact flat spring comprises the production stage of following employing tensile foldable technique:
1), on each finished product precalculated position, print word film mark;
In first step, material strip 1 support supports on son in seal number, enters the word film mark of son recessed material face of formation on material strip 1 by withholding marking.Print word film mark as the first step starting, be can produce the material phenomenon that rises when printing word film mark, and then have influence on the overall dimension of product monomer 4.
In first step, on the product monomer 4 of every group, print different word film marks, so that follow-up, repair a die or easily differentiate during tracing problem based point.
2), punching press location hole 2, then in operation, in location hole 2, wear pilot pin;
In second step, material strip 1 support supports on son in punching, by pressing down pierce punch, at the place, location of material strip 1, goes out location hole 2.
In second step, after punching press location hole 2 steps, the pilot pin being positioned on stripper plate immediately penetrates location hole 2, forms the precisely really position guarantee of follow-up feeding program and every procedure.
3), on material strip 1, go out the anti-deformation edge of a knife 3;
In third step material strip 1 support in shearing lead position enter on son, by pressing down cutting punch, on material strip 1, go out the anti-deformation edge of a knife 3.
In third step, before tensile foldable operation, first on material strip 1, go out an anti-deformation edge of a knife 3, in order to avoid stress is pullled the problem that causes material strip 1 distortion and cannot produce when tensile foldable.
4), product shape cutting;
In the 4th step, material strip 1 support is led position in the type of cutting and is entered on son, by pressing down, cuts type cutter head and on material strip 1, cuts out the external form of product.
In the 4th step, adopt a plurality of type cutter head synchronous cutting of cutting, to make a plurality of product monomers 4 of every group.
5), formed product punching press:
A, first punching press are the product that symmetry is positioned at avris position, and this punching press program at least has stretching and pre-folds engineering and moulding engineering;
B, punching press is the product that symmetry is positioned at medium position again, and this punching press program at least has to stretch and pre-folds engineering and moulding engineering;
In the 5th step, the first support of material strip 1 is led position and is entered on son in pre-folding, and by pressing down, pre-folds punching pin and stretches and fold in advance bending salient point on material strip 1; Making material strip 1 support lead position in moulding, to enter son upper again, by down-pressing forming punching pin at material strip 1 upper punch extrusion molding salient point.In stretching, pre-fold the bending bump height that forms in engineering lower than the moulding bump height forming in moulding engineering, stretch thus and pre-fold the effect that engineering plays pre-stretching unloading stress, through the processing of repeatedly segmentation engineering, could realize one rush many and tolerance be positioned at +/-0.01mm with high-precision requirement.
In the 5th step, during bump height moulding, need highly suitably be divided into multistep operation according to it and complete, make thus the size of product unified stable, the useful life of simultaneously remarkable improving product; And during moulding, need consider that diverse location place material strip 1 intensity is different, therefore relatively also difference to some extent when moulding is stressed, therefore stressed approaching avris position product carries out in same engineering, medium position product carries out in another engineering, controls thus the precision of each product monomer 4 in +/-0.01mm.
6), detect shaped article: use 100x microscope to carry out every dimensional measurement to shaped article.
In the 6th step, use and carry out the accurate detection of size with respect to the more high-precision 100x microscope of 50x microscope, with the bad problem of size of avoiding causing because of measure error.
In the method for high-precision manufacturing of this contact flat spring, requiring to produce is to rush many designs, and the bump height of product requirement tolerance is +/-0.01mm.By manufacturing process's change is adjusted into first and stretches and pre-fold and aftershaping, and coordinate the some front travels before moulding, successfully overcome the technical barrier that is difficult to breakthrough, realized and being promoted in +/-0.01mm by tolerance +/-0.03mm, significantly promoted the high accuracy rank of contact flat spring final finished.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used material strip 1 herein; Location hole 2; The anti-deformation edge of a knife 3; Product monomer 4 terms such as grade, but do not get rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (9)
1. the method for high-precision manufacturing of contact flat spring, is characterized in that, comprises the production stage of following employing tensile foldable technique:
1), on each finished product precalculated position, print word film mark;
2), punching press location hole, then in operation, in location hole, wear pilot pin;
3), on material strip, go out the anti-deformation edge of a knife;
4), product shape cutting;
5), formed product punching press:
A, first punching press are the product that symmetry is positioned at avris position, and this punching press program at least has stretching and pre-folds engineering and moulding engineering;
B, punching press is the product that symmetry is positioned at medium position again, and this punching press program at least has to stretch and pre-folds engineering and moulding engineering;
6), detect shaped article: use 100x microscope to carry out every dimensional measurement to shaped article.
2. the method for high-precision manufacturing of contact flat spring according to claim 1, is characterized in that, in first step, material strip support supports on son in seal number, enters the word film mark of son recessed material face of formation on material strip by withholding marking.
3. the method for high-precision manufacturing of contact flat spring according to claim 1, is characterized in that, in second step, material strip support supports on son in punching, by pressing down pierce punch, at the place, location of material strip, goes out location hole.
4. the method for high-precision manufacturing of contact flat spring according to claim 1, is characterized in that, in third step material strip support in shearing lead position enter on son, by pressing down cutting punch, on material strip, go out the anti-deformation edge of a knife.
5. the method for high-precision manufacturing of contact flat spring according to claim 1, is characterized in that, in the 4th step material strip support in the type of cutting lead position enter on son, by pressing down, cut the external form that type cutter head cuts out product on material strip.
6. the method for high-precision manufacturing of contact flat spring according to claim 1, is characterized in that, in the 5th step, the first support of material strip is led position and entered on son in pre-folding, and by pressing down, pre-folds punching pin and on material strip, stretches and fold in advance bending salient point; Making material strip support lead position in moulding, to enter son upper again, by down-pressing forming punching pin at material strip upper punch extrusion molding salient point.
7. the contact flat spring that method for high-precision manufacturing manufactures according to claim 1, it is characterized in that, comprise the material strip that is strip of sheet, some set products are set on described material strip continuously, every set product is longitudinally arranged some product monomers, between described every set product, offer the anti-deformation edge of a knife, the dual-side of described material strip is evenly offered some location holes.
8. contact flat spring according to claim 7, is characterized in that, on described product monomer, prints and establishes word film mark.
9. contact flat spring according to claim 7, is characterized in that, described material strip is stainless steel lamellar body.
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| CN201410009061.4A CN103746208B (en) | 2014-01-09 | 2014-01-09 | Contact flat spring and method for high-precision manufacturing thereof |
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| CN201410009061.4A CN103746208B (en) | 2014-01-09 | 2014-01-09 | Contact flat spring and method for high-precision manufacturing thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107732507A (en) * | 2017-09-22 | 2018-02-23 | 实盈电子(东莞)有限公司 | Battery connector |
| CN111817100A (en) * | 2019-07-15 | 2020-10-23 | 俞国锋 | Elastic sheet preparation device for elastic sheet type wire pressing frame |
| CN113021866A (en) * | 2021-03-19 | 2021-06-25 | 湖南工程学院 | Portable multi-functional electric complete sets processingequipment |
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| CN113021866A (en) * | 2021-03-19 | 2021-06-25 | 湖南工程学院 | Portable multi-functional electric complete sets processingequipment |
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| CN103746208B (en) | 2017-01-04 |
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