CN107931443A - A kind of horizontal punching machine mould for the pinion gear for producing car belt - Google Patents

A kind of horizontal punching machine mould for the pinion gear for producing car belt Download PDF

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Publication number
CN107931443A
CN107931443A CN201711478391.8A CN201711478391A CN107931443A CN 107931443 A CN107931443 A CN 107931443A CN 201711478391 A CN201711478391 A CN 201711478391A CN 107931443 A CN107931443 A CN 107931443A
Authority
CN
China
Prior art keywords
cushion block
mandril
punch die
main mould
formwork
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711478391.8A
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Chinese (zh)
Inventor
本杰明
刘志鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANTE METAL FORMING (SHANGHAI) Co Ltd
Original Assignee
ANTE METAL FORMING (SHANGHAI) Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ANTE METAL FORMING (SHANGHAI) Co Ltd filed Critical ANTE METAL FORMING (SHANGHAI) Co Ltd
Priority to CN201711478391.8A priority Critical patent/CN107931443A/en
Publication of CN107931443A publication Critical patent/CN107931443A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/10Die sets; Pillar guides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/26Making other particular articles wheels or the like
    • B21D53/28Making other particular articles wheels or the like gear wheels

Abstract

The present invention provides a kind of horizontal punching machine mould for the pinion gear for producing car belt, the horizontal punching machine mould includes the first station, second station, 3rd station, 4th station, 5th station, 6th station, 6th station includes punch die formwork, main mould formwork, punch die cushion block, main mould cushion block, it is equipped with the punch die formwork and rushes rod, the punch die cushion block rushes rod upper end positioned at described, the upper end of the punch die cushion block is equipped with mandril, the lower section of the punch die cushion block is equipped with knock pin, the lower section of the ejection cushion block is equipped with positioning key and punch die fixed block, mandril is equipped with the main mould formwork, the lower end of the mandril is equipped with mandril cushion block.The mould successfully solves the drawbacks of inefficiency and complex process of vertical punching machine production, and preferably improves die life.

Description

A kind of horizontal punching machine mould for the pinion gear for producing car belt
Technical field
The present invention relates to a kind of horizontal punching machine mould of pinion gear.
Background technology
With the sustainable development of auto industry, people's living standards continue to improve, in order to it is more convenient, quickly go out OK, automobile has become the main walking-replacing tool of people.But the rapid proliferation of automobile, forces people to be not concerned with the peace of automobile Entirely, a series of problems, such as energy-saving and environmental protection, and automotive safety problem is even more to stand in the breach, due to automotive safety problem direct relation To the life security of people, this allows many people to automobile using there are certain misgivings so that people are to vehicle safety performance It is it is required that higher and higher.The main safeguard measure of automobile has safety belt, Anti-collision vehicle body and air bag guard system etc., vapour at present Car safety belt is the passive security configuration of traditional guarantee safe driving, is pre- when fierce collision occurs during running Tight device belt pull, can limit the position of driver or occupant, avoid personnel and in-car steering wheel, windshield, The objects such as backrest, car door collide, and the extendability of safety belt can absorb the energy produced in collision process Amount, power limiter can make safety belt slightly relax to mitigate the pressure to passenger, so as to reduce accident to driving people The extent of injury of member.At the same time with the use of upper, safety belt can help occupant to correct faulty sitting posture, and ensure with air bag When accident occurs, air bag can play maximum effect.
Pinion (pinion gear) is used as one of part of most critical in car belt and its system, works as car belt Into, it is necessary to which pinion gear rotation gives cushion effect and finally holds safety belt, therefore its importance has some idea of during row buffering.But Since it needs to realize a series of functions, the shape of pinion gear complexity is directly determined.Traditional Pinion (pinion gear) is in reality Actual production is not combined too much on the basis of existing function, with respect to complex forming technology, height is required to production equipment, causes to give birth to Produce that less efficient, cost is higher.Plate is first is carried out bar stock cutting by punching by the flow of production Pinion in vertical punching machine at present, then Phospholeum, is then processed on vertical three stations cold forging punching machine, and the part of forging and stamping then is carried out vibration cleaning, finally will The identical pinion gear of two processing carries out re-plating after welding fabrication.
The content of the invention
In view of the foregoing deficiencies of prior art, present invention aims at provide a kind of to produce the small of car belt The horizontal punching machine mould of gear, improves work efficiency, and reduces part production cost.
In order to achieve the above objects and other related objects, the present invention provides a kind of pinion gear for producing car belt Horizontal punching machine mould, the horizontal punching machine mould include the first station, second station, 3rd station, the 4th station, the 5th work Position, the 6th station, the 6th station include punch die formwork, main mould formwork, punch die cushion block, main mould cushion block, the punch die formwork Interior be equipped with rushes rod, and the punch die cushion block rushes rod upper end positioned at described, and the upper end of the punch die cushion block is equipped with mandril, the die pad The lower section of block is equipped with knock pin, and the lower section of the ejection cushion block is equipped with positioning key and punch die fixed block, is set in the main mould formwork There is mandril, the lower end of the mandril is equipped with mandril cushion block.
Preferably, first station includes moving cutting tool, moving cutting tool insert, fixed cutting tool, fixed cutting tool insert, institute It is corresponding with the fixed cutting tool position to state moving cutting tool, the fixed cutting tool is located in the fixed cutting tool insert, the work Dynamic cutter is located in the moving cutting tool insert.
Preferably, the second station includes punch die formwork, main mould formwork, punch die cushion block, main mould cushion block, the punch die mould It is equipped with shell and rushes rod, the upper end of the punch die cushion block is equipped with mandril, and main mould mandril, the main mould top are equipped with the main mould formwork Bar is located in the main mould cushion block, and the lower section of the main mould mandril is equipped with mandril cushion block, and the lower section of the mandril cushion block is equipped with top Rod, the lower section of the knock-pin are equipped with ejection cushion block.
Preferably, the 3rd station includes punch die formwork, main mould formwork, punch die cushion block, main mould cushion block, the punch die mould It is equipped with shell and rushes rod, the upper end of the punch die cushion block is equipped with mandril, and main mould mandril, the main mould top are equipped with the main mould formwork Bar is located in the main mould cushion block, and the lower section of the main mould mandril is equipped with mandril cushion block, and the lower section of the mandril cushion block is equipped with top Rod, the lower section of the knock-pin are equipped with ejection cushion block.
Preferably, the 4th station includes punch die formwork, main mould formwork, punch die cushion block, main mould cushion block, the punch die mould It is equipped with shell and rushes rod, the upper end of the punch die cushion block is equipped with mandril, and main mould mandril, the main mould top are equipped with the main mould formwork Bar is located in the main mould cushion block, and the lower section of the main mould mandril is equipped with mandril cushion block, and the lower section of the mandril cushion block is equipped with top Rod, the lower section of the knock-pin are equipped with ejection cushion block, and the ejection cushion block is equipped with knock pin, is set below the knock pin There is discharging seat, the discharging seat is externally provided with discharging set.
Preferably, the 5th station includes punch die formwork, main mould formwork, punch die cushion block, main mould cushion block, the punch die mould It is equipped with shell and rushes rod, the punch die cushion block rushes rod upper end positioned at described, and the upper end of the punch die cushion block is equipped with mandril, the punch die The lower section of cushion block is equipped with knock pin, and the lower section of the knock pin is equipped with discharging seat, and the discharging seat is externally provided with discharging set, the master Main mould cavity plate is equipped with mould formwork, the main mould cavity plate is externally provided with main mould insert, and the main mould cavity plate is externally provided with cavity plate fixed block With main mould cushion block, the lower section of the cavity plate fixed block is equipped with angled slide block.
Preferably, it is described rush rod and be externally provided with rush rod ring, positioning pin is equipped between the mandril and the mandril cushion block, it is described Mandril fixed block is equipped between mandril and the mandril cushion block.
As described above, a kind of horizontal punching machine mould of pinion gear for producing car belt provided by the invention, this work Skill optimizes traditional Pinion on the basis of its function is not influenced as far as possible, finally successfully by product from vertical punching Bed, which is transferred on horizontal punching machine mould, to be produced, and is eliminated the intermediate steps such as embryo and phospholeum processed, is greatly improved work efficiency, and is dropped Low part production cost.For the Pinion shape of product after optimization, by sunykatuib analysis, we will be originally in vertical punching machine The Pinion products of upper production redefine production technology, and mould is designed on horizontal punching machine mould, continual by six times Change mould and debugging and Reverse optimization shape of product, finally successfully get exemplar, complete volume production.By optimizing Pinion product shapes Shape, solves part material non-uniform shortcoming in the radial direction well so that material be easier flow, reduce cold forging into Type power, the drawbacks of successfully solving the inefficiency and complex process of vertical punching machine production, and preferably improve the mould longevity Life.
Brief description of the drawings
Fig. 1 is the first station in horizontal six stations punching machine.
Fig. 2 is the second station in horizontal six stations punching machine.
Fig. 3 is the 3rd station in horizontal six stations punching machine.
Fig. 4 is the 4th station in horizontal six stations punching machine.
Fig. 5 is the 5th station in horizontal six stations punching machine.
Fig. 6 is the 6th station in horizontal six stations punching machine.
001-moving cutting tool, 001A-moving cutting tool insert, 002-fixed cutting tool, 002A-fixed cutting tool insert, 101-punch die formwork, 102-rush rod, 103-rush rod cushion block, 106-punch die cushion block, 107-mandril, 151-main mould formwork, 152-main mould mandril, 154-main mould cushion block, 155-mandril cushion block, 158-knock-pin, 159-ejection cushion block, 120-ejection Pin, 121-discharging seat, 122-discharging set, 123-main mould insert, 124-main mould cavity plate, 125-cavity plate fixed block, 126- Cavity plate fixed block, 127-blanking block, 128-angled slide block, 129-ejection ring, 130-positioning key, 131-punch die fixed block, 132-rush rod ring, 133-mandril fixed block, 134-positioning pin, 120-knock pin.
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation Content disclosed by book understands other advantages and effect of the present invention easily.
Please refer to Fig.1 to Fig. 6.It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only to Coordinate the revealed content of specification, so that those skilled in the art understands and reads, being not limited to the present invention can be real The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, should all still fall in disclosed skill Art content is obtained in the range of covering.Meanwhile in this specification it is cited as " on ", " under ", "left", "right", " centre " and The term of " one " etc., is merely convenient to understanding for narration, and is not used to limit the enforceable scope of the present invention, its relativeness It is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Figures 1 to 6, the present invention provides a kind of horizontal punching machine mould for the pinion gear for producing car belt, The horizontal punching machine mould includes the first station, second station, 3rd station, the 4th station, the 5th station, the 6th station, institute Stating the 6th station includes punch die formwork 101, main mould formwork 151, punch die cushion block 106, main mould cushion block 154, the punch die formwork 101 Interior be equipped with rushes rod 102, and the punch die cushion block 103 rushes 102 upper end of rod positioned at described, and the upper end of the punch die cushion block 106 is equipped with top Bar 107, the lower section of the punch die cushion block 106 are equipped with knock pin 120, and the lower section of the ejection cushion block 159 is equipped with 130 He of positioning key Punch die fixed block 131, the main mould formwork 151 is interior to be equipped with mandril 107, and the lower end of the mandril 107 is equipped with mandril cushion block 155.
In the present embodiment, a diameter of 16-18mm of used wire rod, a diameter of 38- of finally formed pinion gear 40mm。
In the present embodiment, the product horizontal six stations punching machine produced carries out vibration, then welds, obtains final Finished product.
In the present embodiment, first station includes moving cutting tool 001, moving cutting tool insert 001A, fixed cutting tool 002nd, fixed cutting tool insert 002A, the moving cutting tool 001 is corresponding with 002 position of fixed cutting tool, the fixed cutting tool 002 in the fixed cutting tool insert 002A, and the moving cutting tool 001 is located in the moving cutting tool insert 001A.
In the present embodiment, the second station includes punch die formwork 101, main mould formwork 151, punch die cushion block 106, main mould Cushion block 154, interior be equipped with of the punch die formwork 101 rush rod 102, and the upper end of the punch die cushion block 106 is equipped with mandril 107, the master Main mould mandril 152 is equipped with mould formwork 151, the main mould mandril 152 is located in the main mould cushion block 154, the main mould mandril 152 lower section is equipped with mandril cushion block 155, and the lower section of the mandril cushion block 155 is equipped with knock-pin 158, under the knock-pin 158 Side is equipped with ejection cushion block 159.
In the present embodiment, the 3rd station includes punch die formwork 101, main mould formwork 151, punch die cushion block 106, main mould Cushion block 154, interior be equipped with of the punch die formwork 101 rush rod 102, and the upper end of the punch die cushion block 106 is equipped with mandril 107, the master Main mould mandril 152 is equipped with mould formwork 151, the main mould mandril 152 is located in the main mould cushion block 154, the main mould mandril 152 lower section is equipped with mandril cushion block 155, and the lower section of the mandril cushion block 155 is equipped with knock-pin 158, under the knock-pin 158 Side is equipped with ejection cushion block 159.
In the present embodiment, the 4th station includes punch die formwork 101, main mould formwork 151, punch die cushion block 106, main mould Cushion block 154, interior be equipped with of the punch die formwork 101 rush rod 102, and the upper end of the punch die cushion block 106 is equipped with mandril 107, the master Main mould mandril 152 is equipped with mould formwork 151, the main mould mandril 152 is located in the main mould cushion block 154, the main mould mandril 152 lower section is equipped with mandril cushion block 155, and the lower section of the mandril cushion block 155 is equipped with knock-pin 158, under the knock-pin 158 Side is equipped with ejection cushion block 159, and the ejection cushion block 159 is equipped with knock pin 120, and the lower section of the knock pin 120 is equipped with discharging Seat 121, the discharging seat 121 are externally provided with discharging set 122.
In the present embodiment, the 5th station includes punch die formwork 101, main mould formwork 151, punch die cushion block 106, main mould Cushion block 154, is equipped with the punch die formwork 101 and rushes rod 102, and the punch die cushion block 106 rushes 102 upper end of rod positioned at described, described The upper end of punch die cushion block 106 is equipped with mandril 107, and the lower section of the punch die cushion block 106 is equipped with knock pin 120, the knock pin 120 Lower section be equipped with discharging seat 121, the discharging seat 121 is externally provided with discharging set 122, and it is recessed to be equipped with main mould in the main mould formwork 151 Mould 124, the main mould cavity plate 124 are externally provided with main mould insert 123, and the main mould cavity plate 124 is externally provided with cavity plate fixed block 126 and master Die-cushion block 106, the lower section of the cavity plate fixed block 126 are equipped with angled slide block 128.
In the present embodiment, it is described rush rod 102 and be externally provided with rush rod ring 132, the mandril 107 and the mandril cushion block 155 Between be equipped with positioning pin 134, mandril fixed block 133 is equipped between the mandril 107 and the mandril cushion block 155.
Former Pinion products ball and material at ball assembly connection are more, and less by the ball installation place material of proximal end face, While realization uses function, take into full account these factors, the end face of pinion gear is only changed to waveform, allow corrugated At trough face ball and ball assembly connection, so that evenly, material is easier to flow material part, required in the radial direction Cold forging power smaller, it is easier to produced on this horizontal six station, while ensureing for six station die service lifes, obtained preferable Product Precision and quality.
For the Pinion shape of product after optimization, by sunykatuib analysis, by what is produced originally on vertical punching machine Pinion products redefine production technology, and mould is designed on horizontal punching machine mould, continual change mould and tune by six times Simultaneously Reverse optimization shape of product is tried, finally successfully gets exemplar, completes volume production.
In conclusion the present invention provides a kind of horizontal punching machine mould for the pinion gear for producing car belt, for excellent Pinion shape of product after change, by sunykatuib analysis, we by the Pinion products produced originally on vertical punching machine again Determine production technology, mould designed on horizontal punching machine mould, by six times it is continual change mould and debugging and Reverse optimization produce Product shape, finally successfully gets exemplar, completes volume production.By optimizing Pinion shape of product, solves part material well Expect non-uniform shortcoming in the radial direction so that material is easier to flow, and reduces cold-forge forming power, successfully solves vertical The drawbacks of inefficiency and complex process of punching machine production, and preferably improve die life.So the present invention effectively overcomes Various shortcoming of the prior art and have high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as Into all equivalent modifications or change, should by the present invention claim be covered.

Claims (7)

  1. A kind of 1. horizontal punching machine mould for the pinion gear for producing car belt, it is characterised in that:The horizontal punching machine mould Including the first station, second station, 3rd station, the 4th station, the 5th station, the 6th station, the 6th station includes punching Mould formwork, main mould formwork, punch die cushion block, main mould cushion block, interior be equipped with of the punch die formwork rush rod, and the punch die cushion block is positioned at described Rod upper end is rushed, the upper end of the punch die cushion block is equipped with mandril, and the lower section of the punch die cushion block is equipped with knock pin, the ejection cushion block Lower section be equipped with positioning key and punch die fixed block, is equipped with mandril in the main mould formwork, the lower end of the mandril is equipped with mandril pad Block.
  2. 2. a kind of horizontal punching machine mould of pinion gear for producing car belt according to claim 1, its feature exist In:First station include moving cutting tool, moving cutting tool insert, fixed cutting tool, fixed cutting tool insert, the moving cutting tool with The fixed cutting tool position is corresponding, and the fixed cutting tool is located in the fixed cutting tool insert, and the moving cutting tool is located at institute State in moving cutting tool insert.
  3. 3. a kind of horizontal punching machine mould of pinion gear for producing car belt according to claim 1, its feature exist In:The second station includes punch die formwork, main mould formwork, punch die cushion block, main mould cushion block, and punching is equipped with the punch die formwork Rod, the upper end of the punch die cushion block are equipped with mandril, main mould mandril are equipped with the main mould formwork, the main mould mandril is positioned at described In main mould cushion block, the lower section of the main mould mandril is equipped with mandril cushion block, and the lower section of the mandril cushion block is equipped with knock-pin, the top The lower section of rod is equipped with ejection cushion block.
  4. 4. a kind of horizontal punching machine mould of pinion gear for producing car belt according to claim 1, its feature exist In:The 3rd station includes punch die formwork, main mould formwork, punch die cushion block, main mould cushion block, and punching is equipped with the punch die formwork Rod, the upper end of the punch die cushion block are equipped with mandril, main mould mandril are equipped with the main mould formwork, the main mould mandril is positioned at described In main mould cushion block, the lower section of the main mould mandril is equipped with mandril cushion block, and the lower section of the mandril cushion block is equipped with knock-pin, the top The lower section of rod is equipped with ejection cushion block.
  5. 5. a kind of horizontal punching machine mould of pinion gear for producing car belt according to claim 1, its feature exist In:4th station includes punch die formwork, main mould formwork, punch die cushion block, main mould cushion block, and punching is equipped with the punch die formwork Rod, the upper end of the punch die cushion block are equipped with mandril, main mould mandril are equipped with the main mould formwork, the main mould mandril is positioned at described In main mould cushion block, the lower section of the main mould mandril is equipped with mandril cushion block, and the lower section of the mandril cushion block is equipped with knock-pin, the top The lower section of rod is equipped with ejection cushion block, and the ejection cushion block is equipped with knock pin, and the lower section of the knock pin is equipped with discharging seat, institute State discharging seat and be externally provided with discharging set.
  6. 6. a kind of horizontal punching machine mould of pinion gear for producing car belt according to claim 1, its feature exist In:5th station includes punch die formwork, main mould formwork, punch die cushion block, main mould cushion block, and punching is equipped with the punch die formwork Rod, the punch die cushion block rush rod upper end positioned at described, and the upper end of the punch die cushion block is equipped with mandril, the lower section of the punch die cushion block Equipped with knock pin, the lower section of the knock pin is equipped with discharging seat, and the discharging seat is externally provided with discharging set, is set in the main mould formwork There is main mould cavity plate, the main mould cavity plate is externally provided with main mould insert, and the main mould cavity plate is externally provided with cavity plate fixed block and main mould cushion block, The lower section of the cavity plate fixed block is equipped with angled slide block.
  7. A kind of 7. horizontal punching of pinion gear for producing car belt according to any one claims of claim 4-6 Bed mould, it is characterised in that:It is described rush rod and be externally provided with rush rod ring, positioning pin is equipped between the mandril and the mandril cushion block, Mandril fixed block is equipped between the mandril and the mandril cushion block.
CN201711478391.8A 2017-12-29 2017-12-29 A kind of horizontal punching machine mould for the pinion gear for producing car belt Pending CN107931443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711478391.8A CN107931443A (en) 2017-12-29 2017-12-29 A kind of horizontal punching machine mould for the pinion gear for producing car belt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711478391.8A CN107931443A (en) 2017-12-29 2017-12-29 A kind of horizontal punching machine mould for the pinion gear for producing car belt

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CN107931443A true CN107931443A (en) 2018-04-20

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CN201711478391.8A Pending CN107931443A (en) 2017-12-29 2017-12-29 A kind of horizontal punching machine mould for the pinion gear for producing car belt

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Publication number Priority date Publication date Assignee Title
CN103586393A (en) * 2013-11-04 2014-02-19 上海奥达科股份有限公司 Device used for machining automobile safety belt force limit torsion rod
CN203751219U (en) * 2014-03-24 2014-08-06 苏州工业园区新凯精密五金有限公司 Sleeve forming die structure for vehicle
CN204094035U (en) * 2014-08-15 2015-01-14 宾科汽车紧固件(昆山)有限公司 Spline pin shaft cold-heading device
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
CN205128835U (en) * 2015-11-12 2016-04-06 苏州工业园区新凯精密五金有限公司 Mould structure of chassis eccentric nut shaping irregularly -shaped hole
CN206474627U (en) * 2016-12-28 2017-09-08 宾科汽车紧固件(昆山)有限公司 The cold-heading device of special-shaped torque arm

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103586393A (en) * 2013-11-04 2014-02-19 上海奥达科股份有限公司 Device used for machining automobile safety belt force limit torsion rod
CN203751219U (en) * 2014-03-24 2014-08-06 苏州工业园区新凯精密五金有限公司 Sleeve forming die structure for vehicle
CN204094035U (en) * 2014-08-15 2015-01-14 宾科汽车紧固件(昆山)有限公司 Spline pin shaft cold-heading device
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
CN205128835U (en) * 2015-11-12 2016-04-06 苏州工业园区新凯精密五金有限公司 Mould structure of chassis eccentric nut shaping irregularly -shaped hole
CN206474627U (en) * 2016-12-28 2017-09-08 宾科汽车紧固件(昆山)有限公司 The cold-heading device of special-shaped torque arm

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程里: "《模锻实用技术》", 30 June 2010, 北京:机械工业出版社 *

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Application publication date: 20180420