CN103909202A - Screw cold heading device and cold heading technology thereof - Google Patents
Screw cold heading device and cold heading technology thereof Download PDFInfo
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- CN103909202A CN103909202A CN201210591710.7A CN201210591710A CN103909202A CN 103909202 A CN103909202 A CN 103909202A CN 201210591710 A CN201210591710 A CN 201210591710A CN 103909202 A CN103909202 A CN 103909202A
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Abstract
The invention relates to a screw cold heading device and a cold heading technology thereof. The device comprises a feeding mechanism, a shut off mechanism, a delivery mechanism and six moulds, wherein the feeding mechanism and the shut off mechanism correspond in position; the delivery mechanism movably feeds between the feeding mechanism and the six moulds; a first mould is used for forming a thread rolling bar, a second mould is used for preliminarily heading a large bar part, and a third mould is used for lifting the angle of the large bar part; a fourth mould is used for settling materials on a head and forming a chamfer at the tail end of the thread rolling end, a fifth mould is used for forming a small bar part and a head hexagon at the tail end of the thread rolling end, and a sixth mould is used for forming five groove faces and finely heading the hexagon and a flange surface. According to the screw cold heading device, work-pieces are subjected to cold heading through the six moulds, so that the machining processes can be omitted, raw materials can be saved and the working efficiency can be improved.
Description
Technical field
The present invention relates to technical field of mold, particularly a kind of for connecting screw cold-heading device and the cold heading technique thereof of brake pedal.
Background technology
Conventionally, vehicle all has a brake pedal assembly that comprises a pedal arm and a mat, for slowing down and stopping.At present, the production technology that is used for the screw that connects brake pedal comprises: cold-heading, threading, heat treatment, plating and machined, wherein, cold-heading is, with cold headers, wire rod cold forming is become to blank, threading is to twist special screw thread, heat treatment is that the hardness in order to make described screw reaches HRC32 ~ HRC39, plating is the antiseptic property that carries out special surface treatment and improve part, machined is that the screw of first one-step forming is carried out to precise measure processing, comprises the processing of the little bar of tail end portion, threading bar portion and flange face.
There is following shortcoming in existing technique:
1. machining processes has increased the loaded down with trivial details degree of technique, has reduced production efficiency;
2. in machining processes, can produce certain waste material, thereby improve cost of material;
3. in process, may cause workpiece breakage, risk is high.
Summary of the invention
The invention provides a kind of screw cold-heading device and cold heading technique thereof, to solve screw cold-heading device in prior art and low, the damaged risk of cold heading technique production efficiency is high, cost is high problem thereof.
For solving the problems of the technologies described above, the invention provides a kind of screw cold-heading device, comprise feed mechanism, shut-off mechanism, connecting gear and six moulds, wherein,
Described feed mechanism is corresponding with the position of shut-off mechanism;
Described connecting gear is moving feeding between described feed mechanism and six moulds;
The first mould is used to form threading bar;
The second mould is for the large bar of pre-upsetting portion;
The 3rd mould is carried angle for large bar portion;
The 4th mould forms chamfering for head material all in one piece and at threading tail end;
The 5th mould is for forming little bar portion and head hexagon at threading tail end;
The 6th mould is used to form five groove faces smart upsetting hexagonal and flange face.
Preferably, described six moulds include main mould and punch die, described main mould comprises main formwork, main die, main mould push rod and main mould thimble, described main formwork is located at the outside of described main die and main mould thimble, in described main die, be provided with master cast chamber, described main mould push rod is fixedly connected with one end of described main mould thimble, and the other end of described main mould thimble penetrates in described master cast chamber; Described punch die comprises punch die cushion block, punch die shell and punch die thimble, and described punch die shell is located at described punch die thimble outside, and described punch die cushion block is fixedly connected with one end of described punch die thimble, and the other end of described punch die thimble passes described punch die shell.
Preferably, described second, the 4th, the 5th mould also comprises respectively die springs, and described die springs is located between described punch die cushion block and punch die thimble.
Preferably, described second, the 4th, the 5th mould also comprises punch die benevolence, in described punch die benevolence, is respectively equipped with punch die die cavity, and described punch die thimble can pass described punch die die cavity.
Preferably, described six moulds all adopt forward extrusion technique to process.
Preferably, described connecting gear adopts clip.
The present invention also provides a kind of screw cold heading technique, adopts screw cold-heading device as above, comprising:
Shear wire rod feeding;
The threading bar footpath of intense beam wire rod;
The large bar of upsetting portion in advance;
Suppress technique and carry angle, and control wire size;
Material all in one piece in threading tail end bundle chamfering;
The little bar of threading tail end bundle portion, punch die bundle head hexagon;
Restraint five groove faces smart upsetting turret head and flange face.
Compared with prior art, the present invention has the following advantages:
1. the present invention has reduced the operation that machine adds the little bar of tail end portion, threading bar portion and flange face, has greatly improved production efficiency (55 times);
2. reduced the loss of machining processes to raw material, made the required material quantity of single part and saved 19.3% than prior art;
3. improved relative screw intensity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the screw cold-heading device of the embodiment of the invention;
Fig. 2 is the structural representation of the first mould of the embodiment of the invention;
Fig. 3 is the structural representation of the 5th mould of the embodiment of the invention.
In figure: 100-feed mechanism, 200-shut-off mechanism, 300-connecting gear, 400-mould, 410-the first mould, the main formwork of 411-, the main die of 412-, the main mould push rod of 413-, the main mould thimble of 414-, 415-master cast chamber, 416-punch die cushion block, 417-punch die shell, 418-punch die thimble, 420-the second mould, 430-the 3rd mould, 440-the 4th mould, 450-the 5th mould, 451-die springs, 452-punch die benevolence, 453-punch die die cavity, 460-the 6th mould, 500-workpiece.
The specific embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.It should be noted that, accompanying drawing of the present invention all adopts the form of simplification and all uses non-ratio accurately, only in order to convenient, the object of the aid illustration embodiment of the present invention lucidly.
Screw cold-heading device provided by the invention, as shown in Figure 1 to Figure 3, comprises feed mechanism 100, shut-off mechanism 200, connecting gear 300 and six moulds 400, wherein,
Described feed mechanism 100 is corresponding with the position of shut-off mechanism 200; Described connecting gear 300 is moving feeding between described feed mechanism 100 and six moulds 400, and preferably, described connecting gear 300 adopts clip;
The first mould 410 is used to form threading bar;
The second mould 420 is for the pre-large bar of upsetting portion;
The 3rd mould 430 is carried angle for large bar portion;
The 4th mould 440 forms chamfering for head material all in one piece and at threading tail end;
The 5th mould 450 is for forming little bar portion and head hexagon at threading tail end;
The 6th mould 460 is used to form five groove faces smart upsetting hexagonal and flange face, and preferably, described six moulds 400 all adopt forward extrusion technique to process, to improve the intensity of shaped article.In the present invention, first, second, third, fourth mould 410,420,430,440 in the course of the work mass motion to raw-material wire rod, be that workpiece 500 carries out cold-heading molding, the 5th mould 450 is restrainted out hexagonal head type and the little bar of tail end portion, the 6th mould 460 is restrainted five groove face moulding hexagonals and flange face, has omitted process for machining step of the prior art, saves on raw-material basis and has improved production efficiency, in the present embodiment, its production efficiency has improved 55 times compared to prior art.
Preferably, please refer to Fig. 2, described six moulds 400 include main mould and punch die, this sentences the first mould 410 is example, described main mould comprises main formwork 411, main die 412, main mould push rod 413 and main mould thimble 414, described main formwork 411 is located at the outside of described main die 412 and main mould thimble 413, in described main die 412, be provided with master cast chamber 415, described main mould push rod 413 is fixedly connected with one end of described main mould thimble 414, and the other end of described main mould thimble 414 penetrates in described master cast chamber 415; Described punch die comprises punch die cushion block 416, punch die shell 417 and punch die thimble 418, described punch die shell 417 is located at described punch die thimble 418 outsides, described punch die cushion block 416 is fixedly connected with one end of described punch die thimble 418, and the other end of described punch die thimble 418 passes described punch die shell 417.
Preferably, please refer to Fig. 1 and Fig. 3, described second, the 4th, the 5th mould 420,440,450 also comprises respectively die springs 451, this sentences the 5th mould 450 is example, described die springs 451 is located between described punch die cushion block 416 and punch die thimble 418, preferably, described second, the 4th, the 5th mould 420,440,450, still take the 5th mould 450 as example, also comprise punch die benevolence 452, in described punch die benevolence 452, be respectively equipped with punch die die cavity 453, described punch die thimble 418 can pass described punch die die cavity 453.Preferably,
Acting as of described die springs 451, the first, avoid rigid contact between part and workpiece 500 to cause part or workpiece 500 to damage; The second, workpiece 500 is completed after the moulding of head in described punch die die cavity 453, the elastic force effect that recycles described die springs 451 is released described workpiece 500 in described punch die die cavity 453.
The present invention also provides a kind of screw cold heading technique, please continue to refer to Fig. 1, adopts screw cold-heading device as above, comprising:
Shear wire rod feeding;
The threading bar footpath of intense beam wire rod;
The large bar of upsetting portion in advance;
Suppress technique and carry angle, and control wire size;
Material all in one piece in threading tail end bundle chamfering;
The little bar of threading tail end bundle portion, punch die bundle head hexagon;
Restraint five groove faces smart upsetting turret head and flange face.
In sum, screw cold-heading device provided by the invention and cold heading technique thereof, this device comprises feed mechanism 100, shut-off mechanism 200, connecting gear 300 and six moulds 400, wherein, described feed mechanism 100 is corresponding with the position of shut-off mechanism 200; Described connecting gear 300 is moving feeding between described feed mechanism 100 and six moulds 400; The first mould 410 is used to form threading bar; The second mould 420 is for the pre-large bar of upsetting portion; The 3rd mould 430 is carried angle for large bar portion; The 4th mould 440 forms chamfering for head material all in one piece and at threading tail end; The 5th mould 450 is for forming little bar portion and head hexagon at threading tail end; The 6th mould 460 is used to form five groove faces smart upsetting hexagonal and flange face.The present invention carries out cold-heading processing by 410,420,430,440,450,460 pairs of workpieces 500 of six moulds, omits machining processes, has saved raw material and has improved operating efficiency.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to including these changes and modification.
Claims (7)
1. a screw cold-heading device, is characterized in that, comprises feed mechanism, shut-off mechanism, connecting gear and six moulds, wherein,
Described feed mechanism is corresponding with the position of shut-off mechanism;
Described connecting gear is moving feeding between described feed mechanism and six moulds;
The first mould is used to form threading bar;
The second mould is for the large bar of pre-upsetting portion;
The 3rd mould is carried angle for large bar portion;
The 4th mould forms chamfering for head material all in one piece and at threading tail end;
The 5th mould is for forming little bar portion and head hexagon at threading tail end;
The 6th mould is used to form five groove faces smart upsetting hexagonal and flange face.
2. screw cold-heading device as claimed in claim 1, it is characterized in that, described six moulds include main mould and punch die, described main mould comprises main formwork, main die, main mould push rod and main mould thimble, described main formwork is located at the outside of described main die and main mould thimble, in described main die, be provided with master cast chamber, described main mould push rod is fixedly connected with one end of described main mould thimble, and the other end of described main mould thimble penetrates in described master cast chamber; Described punch die comprises punch die cushion block, punch die shell and punch die thimble, and described punch die shell is located at described punch die thimble outside, and described punch die cushion block is fixedly connected with one end of described punch die thimble, and the other end of described punch die thimble passes described punch die shell.
3. screw cold-heading device as claimed in claim 2, is characterized in that, described second, the 4th, the 5th mould also comprises respectively die springs, and described die springs is located between described punch die cushion block and punch die thimble.
4. screw cold-heading device as claimed in claim 2, is characterized in that, described second, the 4th, the 5th mould also comprises punch die benevolence, in described punch die benevolence, is respectively equipped with punch die die cavity, and described punch die thimble can pass described punch die die cavity.
5. screw cold-heading device as claimed in claim 1, is characterized in that, described six moulds all adopt forward extrusion technique to process.
6. screw cold-heading device as claimed in claim 1, is characterized in that, described connecting gear adopts clip.
7. a screw cold heading technique, adopts screw cold-heading device as claimed in claim 1, it is characterized in that, comprising:
Shear wire rod feeding;
The threading bar footpath of intense beam wire rod;
The large bar of upsetting portion in advance;
Suppress technique and carry angle, and control wire size;
Material all in one piece in threading tail end bundle chamfering;
The little bar of threading tail end bundle portion, punch die bundle head hexagon;
Restraint five groove faces smart upsetting turret head and flange face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210591710.7A CN103909202B (en) | 2012-12-29 | 2012-12-29 | A kind of screw cold-heading device and cold heading technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210591710.7A CN103909202B (en) | 2012-12-29 | 2012-12-29 | A kind of screw cold-heading device and cold heading technique thereof |
Publications (2)
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| CN103909202A true CN103909202A (en) | 2014-07-09 |
| CN103909202B CN103909202B (en) | 2016-08-17 |
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| CN201210591710.7A Active CN103909202B (en) | 2012-12-29 | 2012-12-29 | A kind of screw cold-heading device and cold heading technique thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493061A (en) * | 2014-12-01 | 2015-04-08 | 苏州工业园区新凯精密五金有限公司 | Cold-forging technology for safety belt transmission shaft and die structure of molded transmission patterned tooth |
| CN105983640A (en) * | 2015-03-05 | 2016-10-05 | 冯鸣 | Multi-station screw forming device |
| CN107671218A (en) * | 2017-10-30 | 2018-02-09 | 苏州工业园区新凯精密五金有限公司 | A kind of cold-heading molding technique and cold-heading module for being used to manufacture double end tail cutting slot screw |
| CN108326226A (en) * | 2018-02-08 | 2018-07-27 | 苏州工业园区新凯精密五金有限公司 | A kind of cold heading technique and cold-heading module for being molded adjusting screw |
| CN109386529A (en) * | 2018-11-09 | 2019-02-26 | 宾科汽车紧固件（昆山）有限公司 | The molding structure and forming method of stud |
| CN110576143A (en) * | 2019-09-20 | 2019-12-17 | 宾科汽车紧固件（昆山）有限公司 | cold heading device and process for forming screw and screw |
| CN112387911A (en) * | 2020-10-26 | 2021-02-23 | 广州法思特精密五金有限公司 | Tooth plate capable of extruding taper of tail of screw |
| CN114074168A (en) * | 2020-08-19 | 2022-02-22 | 宾科汽车紧固件（昆山）有限公司 | Bolt forming method and cold heading device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493061A (en) * | 2014-12-01 | 2015-04-08 | 苏州工业园区新凯精密五金有限公司 | Cold-forging technology for safety belt transmission shaft and die structure of molded transmission patterned tooth |
| CN105983640A (en) * | 2015-03-05 | 2016-10-05 | 冯鸣 | Multi-station screw forming device |
| CN107671218A (en) * | 2017-10-30 | 2018-02-09 | 苏州工业园区新凯精密五金有限公司 | A kind of cold-heading molding technique and cold-heading module for being used to manufacture double end tail cutting slot screw |
| CN107671218B (en) * | 2017-10-30 | 2024-04-09 | 苏州新凯紧固系统有限公司 | Cold heading forming process and cold heading module for manufacturing double-end tail groove cutting screw |
| CN108326226A (en) * | 2018-02-08 | 2018-07-27 | 苏州工业园区新凯精密五金有限公司 | A kind of cold heading technique and cold-heading module for being molded adjusting screw |
| CN108326226B (en) * | 2018-02-08 | 2024-03-22 | 苏州新凯紧固系统有限公司 | Cold heading process and cold heading module for forming adjusting screw |
| CN109386529A (en) * | 2018-11-09 | 2019-02-26 | 宾科汽车紧固件（昆山）有限公司 | The molding structure and forming method of stud |
| CN110576143A (en) * | 2019-09-20 | 2019-12-17 | 宾科汽车紧固件（昆山）有限公司 | cold heading device and process for forming screw and screw |
| CN114074168A (en) * | 2020-08-19 | 2022-02-22 | 宾科汽车紧固件（昆山）有限公司 | Bolt forming method and cold heading device |
| CN112387911A (en) * | 2020-10-26 | 2021-02-23 | 广州法思特精密五金有限公司 | Tooth plate capable of extruding taper of tail of screw |
| CN112387911B (en) * | 2020-10-26 | 2022-09-16 | 广州法思特精密五金有限公司 | Tooth plate capable of extruding taper of tail of screw |
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| CN103909202B (en) | 2016-08-17 |
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