CN101683708A - Method for manufacturing threaded products with special shaped surfaces - Google Patents
Method for manufacturing threaded products with special shaped surfaces Download PDFInfo
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- CN101683708A CN101683708A CN200910142881A CN200910142881A CN101683708A CN 101683708 A CN101683708 A CN 101683708A CN 200910142881 A CN200910142881 A CN 200910142881A CN 200910142881 A CN200910142881 A CN 200910142881A CN 101683708 A CN101683708 A CN 101683708A
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Abstract
The invention discloses a method for manufacturing threaded products with special shaped surfaces to solve the problem that internal-thread stud products produced by the prior technology cannot meet the requirement of special shapes of solder sides of the products. The method comprises the following steps: placing a raw material into a cavity of a die of a forming die, and performing continuous stamping and punching to prepare a body of a threaded product with a special shaped surface and an inner hole; and tapping the body through tapping technology to produce internal threads on the inner hole of the body. The scheme provided by the invention can manufacture diversified special shaped surfaces through extrusion to improve the strength and torque force of the threaded products.
Description
Technical field
The present invention relates to the manufacture method of screw product, relate in particular to a kind of manufacture method that has the screw thread product of shaped face.
Background technology
At present, in electronic equipments such as notebook computer and PC computer, because the surface imperfection of this class of electronic devices, therefore, the internal threaded column that is arranged on this class of electronic devices surface generally can only be arranged on the surface of electronic equipment by shaped face.For the robustness of the internal threaded column that guarantees to be provided with, generally speaking, this class threaded post is fixed on the surface of electronic equipment by the mode of radium-shine welding, and therefore, the shaped face of this threaded post may also be referred to as and is radium-shine solder side.
At present, this internal threaded column that has radium-shine solder side is generally made by die drawn or thermosol injection moulding, the product strength of Zhi Zaoing is poor like this, torsion is low, and, this production method can not produce the product of shaped face, and product is when being welded on the electronic equipment surface by shaped face, intensity and torsion to product require than higher, and can not satisfy the requirement of product solder side abnormity at present by the manufacture of die drawn or thermosol injection.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of manufacture method that has the screw product of shaped face, can not satisfy the problem of the requirement of product solder side abnormity in order to the internal threaded column product that solves prior art production.
A kind of manufacture method that has the screw product of shaped face that the embodiment of the invention provides comprises: raw material is placed in the die cavity of die of mould, by continuous punching press and punching, obtain having the body of the above-mentioned screw product of shaped face and endoporus; By tapping technology above-mentioned body is carried out tapping, on the above-mentioned endoporus of above-mentioned body, produce internal thread.
Preferably, by continuous cold forging and punching, the body that obtains having the above-mentioned screw product of above-mentioned shaped face comprises: utilize the mutual extrusion of the die and the punch of above-mentioned mould, squeeze out the ladder cylinder; By the mutual extrusion and the beating of above-mentioned die and above-mentioned punch, the big footpath cylinder of above-mentioned ladder cylinder is formed above-mentioned shaped face; According to the nominal diameter of above-mentioned screw thread, on the above-mentioned ladder cylinder behind the above-mentioned shaped face of processing, carry out punching, obtain above-mentioned endoporus.
Further, on the above-mentioned ladder cylinder of processing behind the above-mentioned shaped face, carry out punching after, this method also comprises: chamfering is carried out at the two ends to above-mentioned endoporus.
Further, after obtaining the body of above-mentioned screw product, this method also comprises: the path cylinder with above-mentioned ladder cylinder is a benchmark, and above-mentioned shaped face and above-mentioned endoporus are carried out shaping, so that above-mentioned shaped face and above-mentioned endoporus reach default precision.
Preferably, be provided with position-limited needle in the die of above-mentioned mould, this position-limited needle is used to control the thickness of above-mentioned screw product.
Preferably, the die of above-mentioned mould is provided with and takes off the material element.
Preferably, the above-mentioned material element that takes off comprises: re-pack, push rod, wherein, above-mentioned push rod contacts with above-mentioned position-limited needle, and above-mentioned re-packing contacts with above-mentioned push rod, in the punching press backhaul, the above-mentioned push rod of the above-mentioned roof pressure that re-packs, the above-mentioned position-limited needle of above-mentioned push rod roof pressure, above-mentioned position-limited needle ejects raw material.
Preferably, the profiling drift of the with good grounds above-mentioned shaped face making of the convex mold of above-mentioned mould.
The embodiment of the invention has the screw product of shaped face by the punching press form, can produce diversified special shaped surfaces by extruding, and the screw product that produces by the embodiment of the invention has higher intensity and torsion, can satisfy the requirement of product solder side abnormity.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is for having the flow chart of manufacture method of the screw product of shaped face according to the embodiment of the invention;
Fig. 2 A is the front view according to the twin columns screw product of the embodiment of the invention;
Fig. 2 B is the vertical view according to the twin columns screw product of the embodiment of the invention;
Fig. 3 is the strip figure of the twin columns screw product shown in shop drawings 2A and Fig. 2 B;
Fig. 4 A is the front view according to the another kind of twin columns screw product of the embodiment of the invention;
Fig. 4 B is the left view according to the another kind of twin columns screw product of the embodiment of the invention;
Fig. 4 C is the cutaway view according to the another kind of twin columns screw product of the embodiment of the invention;
Fig. 5 A is the front view according to a kind of single-column screw product of the embodiment of the invention;
Fig. 5 B is the left view according to a kind of single-column screw product of the embodiment of the invention.
The specific embodiment
In embodiments of the present invention, the demand that electronic equipments such as notebook computer and PC computer are accurate to dimensional requirement, robustness is high, structure is diversified in order to adapt to, can produce in enormous quantities, cost is low etc., the embodiment of the invention is utilized continuous cold the forging of mould, change the molecular structure of whole material, increase the density of product material, thereby realize the high strength of product and than torsibility.In embodiments of the present invention, can push, can make the shaped face variation of screw product by profiling.
Under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Fig. 1 is for having the flow chart of manufacture method of the screw product of shaped face according to the embodiment of the invention, as shown in Figure 1, mainly may further comprise the steps (step S101-step S103) according to the manufacture method of the screw product that has shaped face of the embodiment of the invention:
Step S101: raw material is placed in the die cavity of die of mould,, obtain having the body of the screw product of shaped face and endoporus by continuous punching press and punching;
In specific implementation process, the inner edge of the inner edge of the punch of mould (may also be referred to as patrix) and die (may also be referred to as counterdie) forms the shape of the product that will produce, for the product distortion that prevents to produce, punch can be made the profiling drift according to the requirement of the shaped face (being radium-shine solder side) of product, squeezes out this shaped face by this profiling drift.
Particularly, in embodiments of the present invention, can by following steps (step 1-step 3) obtains having the body of the screw product of shaped face and endoporus:
Step 1: utilize the mutual extrusion of the die and the punch of mould, squeeze out the ladder cylinder;
In specific implementation process, the die cavity of die comprises two parts, and a part is the threaded post part, and part is the shaped face part.Particularly, can be according to the size and the height of product to be produced, determine the size and the shape of raw material, after raw material is put into the die cavity of die, utilize the mode of die and punch extruding, utilize the plasticity of raw material to make raw material in concave die cavity, produce convection current, extrude the ladder cylinder, wherein, the path cylinder of ladder cylinder is a double-screw bolt.
In specific implementation process, a position-limited needle can be set in the die cavity of die, come the height (or being called thickness) of spacing control product by this position-limited needle.
In specific implementation process, can forge in order to guarantee the cold of shaped face, need extruding thickness to control, for example, be 0.4mm as the actual (real) thickness of fruit product, the thickness of material is 1.2mm, then after the extruding of step 1, surface thickness is 0.6mm.
Step 2: by the mutual extrusion and the beating of die and punch, with the big footpath cylinder formation shaped face of above-mentioned ladder cylinder;
In this step, utilize the profiling formula drift of punch, the big footpath cylinder of above-mentioned ladder cylinder is patted and pushed, thereby form shaped faces such as needed plane, curved surface or sphere.With above-mentioned product is example, through after this step, the thickness of product is expressed to 0.45mm, wherein leaves the surplus of 0.05mm.
Step 3: according to the nominal diameter of screw thread, on the ladder cylinder after processing profiled, carry out punching, obtain endoporus.
In specific implementation process, can adopt slide block type to carry out punching, under the prerequisite of fixed product profile, carry out punching, can guarantee the concentricity of tooth hole and product design.
And, more convenient during smooth and easy and assembling when making tapping, can utilize two chamfers of chamfering at endoporus, therefore, after above-mentioned steps 3, this method can also comprise:
Step 4: chamfering is carried out at the two ends of the endoporus that punching obtains to step 3.
And in order to guarantee the precision of product, after step 4, this method can also comprise:
Step 5: the path cylinder with above-mentioned ladder cylinder is a benchmark, and shaped face and endoporus are carried out shaping, so that shaped face and endoporus reach default precision.In specific implementation process, can be by profiling extruding with towards the pin shaping, carrying out with above-mentioned path pillar to product is benchmark, shaped face is carried out shaping and endoporus is rebuild, thereby guaranteed the stability of product size.With the said goods is example, and through step 5, the surface thickness of this product is 0.4mm ± 0.03mm.
The mode of blanking is carried out blanking under adopting in embodiments of the present invention, and in embodiments of the present invention, punch is made as the profiling drift, and die can adopt the form of 2mm Zhi Bi, oblique single 1 degree, thereby can avoid product overlapping in mould, produces and is out of shape.
And, in embodiments of the present invention, in die, also be provided with and take off the material element, particularly, this takes off the material element and can comprise: re-pack and push rod, wherein, push rod is positioned at the bottom of position-limited needle, contacts with position-limited needle, re-pack and be positioned at the bottom of push rod, contact with push rod, when punch press operates (during the downward punching press of punch), push rod arrives BBC according to the effect of punch press, in effective stroke, to re-pack toward pressing down, position-limited needle is separated with push rod, cylinder can extend downwardly into the size that reaches the Nei Ding position and reach product requirement.In the punch press backhaul top dead-centre, push rod leaves and re-packs, the roof pressure push rod under the effect of spring that re-packs, and with push rod jack-up, push rod roof pressure position-limited needle, position-limited needle ejects product.
Step S103: by tapping technology above-mentioned body is carried out tapping, on the endoporus of this body, produce internal thread.
In specific implementation process, can carry out tapping to above-mentioned endoporus by the tapping machine, thereby can guarantee the quality of screw thread.
Above-mentioned manufacture method by the embodiment of the invention provides can produce the screw product with diversified special shaped surfaces, and this screw product has higher intensity and torsion.
For further understanding the above-mentioned manufacture method that the embodiment of the invention provides, be example with the twin columns screw product below, further the above-mentioned manufacture method that the embodiment of the invention is provided is described.
Fig. 2 A is the front view of the twin columns screw product of the embodiment of the invention, Fig. 2 B is the vertical view of this twin columns screw product, shown in Fig. 2 A and Fig. 2 B, the radium-shine welding face length of this twin columns screw product is 18.9 ± 0.1mm, wide is 8.97 ± 0.1mm, spacing between two posts is: 11.6 ± 0.05mm, two edges of the distance of center circle of two posts are respectively 3.3 ± 0.05mm and 4.18 ± 0.1mm, two posts are the internal thread of M2 type, the diameter of two posts is 3.6 ± 0.1mm, thick 2.87 ± the 0.1mm of this product, wherein, the thick 0.4 ± 0.05mm of shaped face.Fig. 3 is for making the strip figure of this twin columns screw product, raw material is through operation shown in Figure 3, can obtain having the body of the twin columns screw thread product of shaped face and tooth hole (being above-mentioned endoporus), as shown in Figure 3, the body of making this twin columns screw product mainly comprises following operation:
Operation 1: cold-extruded double-screw bolt.As shown in Figure 3, patrix squeezes the post upper punch, reservation material in the punching press counterdie die cavity wherein, is provided with double-screw bolt position-limited needle (being above-mentioned position-limited needle) in the counterdie, this double-screw bolt position-limited needle is fixed by mold insert under the double-screw bolt, and this double-screw bolt position-limited needle bottom also is provided with fore-set under the double-screw bolt, this time fore-set with under re-pack and link to each other, under re-pack and be connected with anti-top spring, anti-top spring is fixed on the bottom plate.When patrix squeezes the post upper punch, mold insert under extruding double-screw bolt position-limited needle and the double-screw bolt, fore-set under the double-screw bolt position-limited needle extruding double-screw bolt, fore-set will re-pack down toward pressing down under the double-screw bolt, and under the control of double-screw bolt position-limited needle, double-screw bolt extends downwardly into the size that reaches the precalculated position and reach product requirement.In specific implementation process, the die cavity of die can be become gradient with bore design, solve the material problem of taking off by endoporus elasticity liftout.According to the requirement of the height of the size of product and pillar, determine the area of extrded material.At this moment, forge in order to guarantee the cold of radium-shine solder side, need control extruding thickness, as 2A and 2B diagram product, the actual (real) thickness of this product is 0.4mm, and the thickness of material is 1.2mm, and behind the extruding double-screw bolt, surface thickness is 0.6mm.
Operation 2 is pushed radium-shine solder side.Patrix is patted the radium-shine solder side upper punch of extruding, particularly, patrix is patted mold insert under extruding double-screw bolt position-limited needle and the double-screw bolt, the double-screw bolt position-limited needle is patted fore-set under the extruding double-screw bolt, radium-shine solder side beating is squeezed into the desired shape of this product, and product surface thickness is expressed to 0.45mm, stay the surplus of 0.05mm simultaneously.
Operation 3, punching.In this step operation, mold insert and a tooth hole drift in the tooth hole profiling are housed on the patrix, mold insert can prevent to change the shape of radium-shine solder side in this tooth hole profiling in punch process, mold insert and tooth hole drift sweep away mold insert under tooth hole slide, tooth hole slide block and the tooth hole of mould in the hole profiling of punch press tooth, thereby can under the prerequisite of fixed bolt profile, carry out punching, guarantee the concentricity of tooth hole and product design.
Operation 4, chamfering, in this step operation, mold insert and a tooth Hole chamfering upper punch in the profiling of a tooth Hole chamfering are housed on the patrix, tooth Hole chamfering upper punch, under the effect of mold insert under tooth Hole chamfering position-limited needle, the tooth Hole chamfering and tooth Hole chamfering lower push rod, to two chamfers in tooth hole, thus the convenience when having guaranteed follow-up smooth and easy when tapping and assembling.
Operation 5, shaping, for stablizing of product surface shape, pillar height and size, by the profiling extruding with towards the pin shaping, with the pillar is benchmark, under the control of mold insert under radium face of weld position-limited needle, the radium face of weld and radium face of weld lower push rod, realize the shaping of radium-shine solder side and the trimming in tooth hole, thus the stability of assurance product size, through after this operation, the surface thickness of product is 0.4mm ± 0.03mm.
Operation 6, blanking adopts the mode of blanking down in the present embodiment, and patrix is made mold insert and blanking die in the blanking profiling according to the requirement of the radium-shine solder side of product, thereby can prevent distortion.
After operation 6, can carry out screw thread processing to the screw product body that obtains, can adopt glossing to polish then by the outer surface of polishing machine to product, to improve the surface gloss of product, simultaneously, can also carry out product follow-up such as processing such as baking vanish, plating, with the performance of further raising product.
Though the embodiment of the invention is that example describes with the twin columns screw product shown in Fig. 2 A and Fig. 2 B, but be not limited to this, the technical scheme that those skilled in the art provides according to the embodiment of the invention, can adopt same or analogous technology to produce (or similarly) twin columns screw product shown in Fig. 4 A and Fig. 4 B, and with (or similarly) single-column screw product shown in Fig. 5 A or Fig. 5 B.
Experiment showed, that with the single-column screw product be example, adopt the pulling capacity of the single-column screw product of embodiment of the invention manufacturing can reach 20 kilograms, torsion can reach 5 kilograms.And the pulling capacity that adopts the like product that prior art makes is probably between 5 kilograms to 8 kilograms, and torsion is about the 2-3 kilogram.
As mentioned above, provide above-mentioned manufacture method by the embodiment of the invention, can produce the screw product that has shaped face by extruding, this screw product can have higher intensity and torsion, and the overall performance and the bulk strength of its double-screw bolt and solder side are higher.And, can satisfy different special-shaped demands by profiling extruding and the cold radium-shine solder side of forging, so that the anastomose property of this solder side when product is assembled is better.In addition, in embodiments of the present invention by progressive die punching press not only guaranteed size stable, but also can produce in enormous quantities, cost is lower simultaneously.And through the polishing machine polishing, the product surface glossiness that the embodiment of the invention is made is higher, can satisfy the demand to the outward appearance of product, and, because product is stamping forming, therefore, when polishing, can not deform and size decreases.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (8)
1, a kind of manufacture method that has the screw product of shaped face is characterized in that, comprising:
Raw material is placed in the die cavity of die of mould,, obtain having the body of the described screw product of described shaped face and endoporus by continuous punching press and punching;
By tapping technology described body is carried out tapping, on the described endoporus of described body, produce internal thread.
2, manufacture method according to claim 1 is characterized in that, by continuous cold forging and punching, the body that obtains having the described screw product of described shaped face comprises:
Utilize the mutual extrusion of the die and the punch of described mould, squeeze out the ladder cylinder;
By the mutual extrusion and the beating of described die and described punch, the big footpath cylinder of described ladder cylinder is formed described shaped face;
According to the nominal diameter of described screw thread, on the described ladder cylinder behind the described shaped face of processing, carry out punching, obtain described endoporus.
3, manufacture method according to claim 2 is characterized in that, on the described ladder cylinder of processing behind the described shaped face, carry out punching after, described method also comprises:
Chamfering is carried out at two ends to described endoporus.
4, manufacture method according to claim 3 is characterized in that, after obtaining the body of described screw product, described method also comprises:
Path cylinder with described ladder cylinder is a benchmark, and described shaped face and described endoporus are carried out shaping, so that described shaped face and described endoporus reach default precision.
5, manufacture method according to claim 1 is characterized in that, is provided with position-limited needle in the die of described mould, and this position-limited needle is used to control the thickness of described screw product.
6, manufacture method according to claim 5 is characterized in that, the die of described mould is provided with and takes off the material element.
7, manufacture method according to claim 6, it is characterized in that, the described material element that takes off comprises: re-pack, push rod, wherein, described push rod contacts with described position-limited needle, and described re-packing contacts with described push rod, in the punching press backhaul, the described push rod of the described roof pressure that re-packs, the described position-limited needle of described push rod roof pressure, described position-limited needle ejects raw material.
8, manufacture method according to claim 1 is characterized in that, the profiling drift that the with good grounds described shaped face of the convex mold of described mould is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910142881A CN101683708A (en) | 2009-05-19 | 2009-05-19 | Method for manufacturing threaded products with special shaped surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910142881A CN101683708A (en) | 2009-05-19 | 2009-05-19 | Method for manufacturing threaded products with special shaped surfaces |
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| CN101683708A true CN101683708A (en) | 2010-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910142881A Pending CN101683708A (en) | 2009-05-19 | 2009-05-19 | Method for manufacturing threaded products with special shaped surfaces |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179458A (en) * | 2010-12-31 | 2011-09-14 | 周锡轩 | Manufacturing method of tooth pattern and mould assembly thereof |
| CN102862024A (en) * | 2012-09-05 | 2013-01-09 | 宁波恒隆车业有限公司 | Adjusting bowl process flow |
| CN113075872A (en) * | 2021-04-07 | 2021-07-06 | 东莞长盈精密技术有限公司 | Housing assembly and method for manufacturing housing assembly |
-
2009
- 2009-05-19 CN CN200910142881A patent/CN101683708A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179458A (en) * | 2010-12-31 | 2011-09-14 | 周锡轩 | Manufacturing method of tooth pattern and mould assembly thereof |
| CN102862024A (en) * | 2012-09-05 | 2013-01-09 | 宁波恒隆车业有限公司 | Adjusting bowl process flow |
| CN113075872A (en) * | 2021-04-07 | 2021-07-06 | 东莞长盈精密技术有限公司 | Housing assembly and method for manufacturing housing assembly |
| CN113075872B (en) * | 2021-04-07 | 2022-10-28 | 东莞长盈精密技术有限公司 | Method for manufacturing shell assembly |
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Open date: 20100331 |