CN201205591Y - Cold heading die for coupling brake treadle arm and support tube integrally - Google Patents
Cold heading die for coupling brake treadle arm and support tube integrally Download PDFInfo
- Publication number
- CN201205591Y CN201205591Y CNU2008200363908U CN200820036390U CN201205591Y CN 201205591 Y CN201205591 Y CN 201205591Y CN U2008200363908 U CNU2008200363908 U CN U2008200363908U CN 200820036390 U CN200820036390 U CN 200820036390U CN 201205591 Y CN201205591 Y CN 201205591Y
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- China
- Prior art keywords
- mold core
- stay pipe
- lower mold
- brake pedal
- die
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- Expired - Lifetime
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Abstract
The utility model discloses a cold-heading die used to integrate a brake pedal lever with a supporting tube, which comprises an upper die and a lower die; wherein, the upper die is composed of an upper die plate, an upper die body firmly connected with the upper die plate and an upper die core mechanism; a through hole which matches the surface of the outer periphery of the supporting tube is arranged in the center of the upper die body; the upper die core mechanism is provided with an elastic upper die core which can vertically move in the central through hole of the upper die body; the lower die is composed of a lower die plate, a lower die body firmly connected with the lower die plate and a lower die core mechanism; a through hole which matches the surface of the outer periphery of the supporting tube is arranged in the center of the lower die body; and the lower die core mechanism is provided with an elastic lower die core which can vertically move in the central through hole of the lower die body. The cold-heading die used to integrate the brake pedal lever with the supporting tube, which has reliable performance, can avoid the instable factors of mass production, which are caused by the welding method, thus ensuring the quality stability of mass production, and can reduce workload and increase production efficiency.
Description
Technical field
The utility model relates to cold extrusion die, especially relates to the cold heading die that brake pedal arm and stay pipe are fused.
Background technology
The brake pedal arm and the stay pipe structure of present vehicle brake pedal assembly, adopt the mode of welding that pedal arm and stay pipe is affixed, pedal assembly should satisfy reliability requirement as the vitals of car brakeing system, therefore to guarantee the intensity of brake pedal arm, if the generation that fracture might cause great traffic accident appears in weld, and there is destabilizing factor in welding manner commonly used when producing in batches, and the workpiece that all weld strengths do not meet the demands is all detected, spend a large amount of manpower and materials; Be with brake check spring on the cylindrical of stay pipe, the many overlaps of remained on surface, welding slag when the welding body, when the vehicle brake pedal assembly is worked, can constantly rub with brake check spring, make a noise, brake check spring also finally can be rubbed, and has not only reduced service life, and can cause serious consequence.Cold heading die that brake pedal arm and stay pipe are fused also do not occur at present, it produces steady quality in batches, can satisfy reliability requirement, can reduce workload, enhances productivity.
The utility model content
Technical problem to be solved in the utility model is: provide a kind of brake pedal arm and stay pipe to form the cold heading die of one, brake pedal arm and stay pipe form the cold heading die of one and produce steady quality in batches, can satisfy reliability requirement, can reduce workload, enhance productivity.
Solve this technical problem, the technical solution of the utility model is: a kind of cold heading die with brake pedal arm and stay pipe formation one, comprise upper die and lower die, patrix is by cope match-plate pattern, upper die body and the upper mold core mechanism affixed with cope match-plate pattern form, the upper die body center is provided with the through hole that adapts with the stay pipe outer round surface, described upper mold core mechanism has the upper mold core of the elastic telescopic that moves both vertically in the upper die body central through hole, the diameter of described upper mold core and the internal diameter of described stay pipe adapt, and have the interval that forms centring ring after the stay pipe crimp between the upper surface of described upper mold core and brake pedal arm; Counterdie is by lower bolster, form with affixed lower mold body and the lower mold core mechanism of lower bolster, the lower mold body center is provided with the through hole that adapts with the stay pipe outer round surface, described lower mold core mechanism has the lower mold core of the elastic telescopic that moves both vertically in the lower mold body central through hole, the diameter of described lower mold core and the internal diameter of described stay pipe adapt, and have the interval that forms centring ring after the stay pipe crimp between the lower surface of described lower mold core and brake pedal arm.
Described upper mold core mechanism is become with compression spring set by upper mold core, and the compression spring is between upper mold core and cope match-plate pattern, and the top of upper mold core has the ring washer that contacts with upper die body; Described lower mold core mechanism is become with compression spring set by lower mold core, and the compression spring is between lower mold core and lower bolster, and the bottom of lower mold core has the ring washer that contacts with lower mold body.
The bottom of described upper mold core is provided with the section of stretching out, and the maximum gauge of the section of stretching out is less than the diameter of upper mold core, and the top of described lower mold core is provided with the section of stretching out, and the maximum gauge of the section of stretching out is less than the diameter of lower mold core.
The section of stretching out of described upper mold core bottom is spherical, and the section of stretching out on described lower mold core top is spherical.
The faying face place of the patrix of described cold heading die and counterdie is provided with cushion.
The cold heading die that adopts the utility model that brake pedal arm and stay pipe are fused, the stay pipe cold-heading forms the centring ring axial restraint, a plurality of breach of the connection holes of brake pedal arm can guarantee that stay pipe does not rotate with respect to the brake pedal arm, brake pedal arm and stay pipe firmly are connected the employing moulds of industrial equipment to be realized, avoided the destabilizing factor of the batch process that welding manner brings, during the work of vehicle brake pedal assembly, brake check spring is no longer rubbed, and can guarantee that brake pedal unit is safe and reliable in the service life of appraising and deciding.Produce steady quality in batches, can reduce workload, enhance productivity.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done explanation in further detail with the cold heading die that brake pedal arm and stay pipe fuse;
The structural representation of the cold heading die that Fig. 1 fuses brake pedal arm and stay pipe for the utility model;
The structure enlarged diagram that Fig. 2 fuses for brake pedal arm shown in Figure 1 and stay pipe;
Fig. 3 is the connection holes schematic diagram of Fig. 1, brake pedal arm shown in Figure 2;
In Fig. 1, Fig. 2, Fig. 3,1, cope match-plate pattern; 2, compression spring; 3, upper mold core; 4, lower mold body; 5, lower bolster; 6, compression spring; 7, lower mold core; 8, brake pedal arm; 9, stay pipe and filling piece; 10, upper die body; 11, stay pipe; 12, brake pedal arm; 13, filling piece; 14, centring ring; 15, connection holes; 16, breach.
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, brake pedal arm and stay pipe form the structure of one by the brake pedal arm 12 with connection holes 15, passing the stay pipe 11 and the filling piece 13 of brake pedal arm 12 connection holes 15 forms, the connection holes 15 of brake pedal arm 12 is that the uniform outside a plurality of breach of circular hole and circular hole periphery 16 are formed, the upper surface of the connection holes that is positioned at brake pedal arm 12 15 of stay pipe 11, the lower surface place has the centring ring 14 that bloats respectively, have the filling piece 13 of plastic material in the endoporus between two centring rings 14 of stay pipe 11, filling piece 13 has the through hole with the stay pipe dead in line.The two ends of stay pipe 11 can be provided with the extension that is threaded, and make stay pipe firmly be connected the length requirement of simultaneous adaptation stay pipe with the brake pedal arm.
Cold heading die with brake pedal arm and stay pipe formation one, comprise upper die and lower die, patrix is by cope match-plate pattern 1, upper die body 10 and the upper mold core mechanism affixed with cope match-plate pattern 1 form, upper die body 10 centers are provided with the through hole that adapts with stay pipe 11 outer round surface, described upper mold core mechanism has the upper mold core of the elastic telescopic that moves both vertically in upper die body 10 central through holes, the internal diameter of the diameter of described upper mold core and described stay pipe 11 adapts, and has the interval that forms centring ring 14 after stay pipe 11 crimps between the upper surface of described upper mold core and brake pedal arm 12; Counterdie is by lower bolster 5, form with affixed lower mold body 4 and the lower mold core mechanism of lower bolster 5, lower mold body 4 centers are provided with the through hole that adapts with stay pipe 11 outer round surface, described lower mold core mechanism has the lower mold core of the elastic telescopic that moves both vertically in lower mold body 4 central through holes, the internal diameter of the diameter of described lower mold core and described stay pipe 11 adapts, and has the interval that forms centring ring 14 after stay pipe 11 crimps between the lower surface of described lower mold core and brake pedal arm 12.When upper die and lower die close up, the upper die and lower die middle part has the cavity that the stay pipe axial upset forms centring ring, the diameter that centring ring outwards bloats around being is greater than the annulus of brake pedal arm connection holes, end on counterdie and side arrangement locating piece, the brake pedal arm puts in from horizontal direction, when the end of brake pedal arm contacted with locating piece with a side, the center line of stay pipe alignd with the center line of lower mold core, realized the location.
Described upper mold core mechanism is made up of upper mold core 3 and compression spring 2, compression spring 2 is between upper mold core 3 and cope match-plate pattern 1, the top of upper mold core 3 has the ring washer that contacts with upper die body 10, and the bottom of upper mold core 3 is provided with the spherical section of stretching out, and its diameter is less than the diameter of upper mold core 3; Described lower mold core mechanism is made up of lower mold core 7 and compression spring 6, compression spring 6 is between lower mold core 7 and lower bolster 5, the bottom of lower mold core 7 has the ring washer that contacts with lower mold body 4, and the bottom of lower mold core 7 is provided with the spherical section of stretching out, and its diameter is less than the diameter of lower mold core 3.
When arranging cushion at the patrix of cold heading die and the faying face place of counterdie, can prolong the service life of cold heading die, reduce the workshop noise.
With brake pedal arm and stay pipe form one making step be, a, make perforating die, the connection holes of brake pedal arm is gone out, as shown in Figure 3, the connection holes 5 of brake pedal arm be the uniform outside a plurality of breach of circular hole and circular hole periphery 6 compositions; B, install to regulate above-described cold heading die on punch press, the patrix of cold heading die is fixed on the slide block of punch press, counterdie is fixed on the die holder, the center line of the patrix of cold heading die and the alignment of counterdie center line; C, be placed on the counterdie with the brake pedal arm with the stay pipe of pedal arm connection holes matched in clearance, the end of brake pedal arm contacts with locating piece with a side, and the lower end of stay pipe is enclosed within on the lower mold core of counterdie; D, the circular filling piece of plastic material is put in the stay pipe from the upper end of stay pipe; E, unlatching punch press, patrix falls and counterdie closes up, in closing up process, but but the lower mold core top of the elastic telescopic of the upper mold core lower end of the elastic telescopic of patrix and counterdie is positioned the filling piece in the stay pipe for the precalculated position, upper surface, the lower surface place of the connection holes that is positioned at brake pedal arm 25 of stay pipe 1 bloat centring ring 4 respectively, filling piece 3 extrusion fillings in the stay pipe 1 in the endoporus of the distortion of stay pipe, thereby guaranteed bonding strength.
For the stay pipe length requirement of the brake pedal unit that adapts to different size, can on above-mentioned cold heading die, fuse by earlier that length is short stay pipe and brake pedal arm, again at the stay pipe two ends or the extension that is threaded of an end setting.
The cold heading die that adopts the utility model that brake pedal arm and stay pipe are fused, the stay pipe cold-heading forms the centring ring axial restraint, a plurality of breach of the connection holes of brake pedal arm can guarantee that stay pipe does not rotate with respect to the brake pedal arm, brake pedal arm and stay pipe firmly are connected the employing moulds of industrial equipment to be realized, avoided the destabilizing factor of the batch process that welding manner brings, during the work of vehicle brake pedal assembly, brake check spring is no longer rubbed, and can guarantee that brake pedal unit is safe and reliable in the service life of appraising and deciding.Produce steady quality in batches, can reduce workload, enhance productivity.
Claims (5)
1, a kind of cold heading die with brake pedal arm and stay pipe formation one, it is characterized in that: comprise upper die and lower die, patrix is by cope match-plate pattern (1), upper die body (10) and the upper mold core mechanism affixed with cope match-plate pattern (1) form, upper die body (10) center is provided with the through hole that adapts with stay pipe (11) outer round surface, described upper mold core mechanism has the upper mold core of the elastic telescopic that moves both vertically in upper die body (10) central through hole, the internal diameter of the diameter of described upper mold core and described stay pipe (11) adapts, and has the interval that forms centring ring (14) after stay pipe (11) crimp between the upper surface of described upper mold core and brake pedal arm (12); Counterdie is by lower bolster (5), form with affixed lower mold body (4) and the lower mold core mechanism of lower bolster (5), lower mold body (4) center is provided with the through hole that adapts with stay pipe (11) outer round surface, described lower mold core mechanism has the lower mold core of the elastic telescopic that moves both vertically in lower mold body (4) central through hole, the internal diameter of the diameter of described lower mold core and described stay pipe (11) adapts, and has the interval that forms centring ring (14) after stay pipe (11) crimp between the lower surface of described lower mold core and brake pedal arm (12).
2, the cold heading die with brake pedal arm and stay pipe formation one according to claim 1, it is characterized in that: described upper mold core mechanism is made up of upper mold core (3) and compression spring (2), compression spring (2) is positioned between upper mold core (3) and the cope match-plate pattern (1), and the top of upper mold core (3) has the ring washer that contacts with upper die body (10); Described lower mold core mechanism is made up of lower mold core (7) and compression spring (6), compresses spring (6) and is positioned between lower mold core (7) and the lower bolster (5), and the bottom of lower mold core (7) has the ring washer that contacts with lower mold body (4).
3, the cold heading die with brake pedal arm and stay pipe formation one according to claim 2, it is characterized in that: the bottom of described upper mold core (3) is provided with the section of stretching out, the maximum gauge of the section of stretching out is less than the diameter of upper mold core (3), the top of described lower mold core (7) is provided with the section of stretching out, and the maximum gauge of the section of stretching out is less than the diameter of lower mold core (7).
4, the cold heading die with brake pedal arm and stay pipe formation one according to claim 3, it is characterized in that: the section of stretching out of described upper mold core (3) bottom is for spherical, and the section of stretching out on described lower mold core (7) top is spherical.
5, according to claim 1 or 2 or 3 or 4 described cold heading dies with brake pedal arm and stay pipe formation one, it is characterized in that: the faying face place of the patrix of described cold heading die and counterdie is provided with cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200363908U CN201205591Y (en) | 2008-05-22 | 2008-05-22 | Cold heading die for coupling brake treadle arm and support tube integrally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200363908U CN201205591Y (en) | 2008-05-22 | 2008-05-22 | Cold heading die for coupling brake treadle arm and support tube integrally |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201205591Y true CN201205591Y (en) | 2009-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200363908U Expired - Lifetime CN201205591Y (en) | 2008-05-22 | 2008-05-22 | Cold heading die for coupling brake treadle arm and support tube integrally |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201205591Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862802B (en) * | 2009-04-20 | 2012-01-04 | 上海汇众汽车制造有限公司 | Preforging die for automobile rear lower control arm and forging method thereof |
| CN103272953A (en) * | 2013-06-03 | 2013-09-04 | 浙江炜驰汽车零部件股份有限公司 | One-step forming device for brake pedal arms |
| CN106740755A (en) * | 2016-12-26 | 2017-05-31 | 重庆协成五金制造有限公司 | A kind of brake treadle mechanism and Sheet Metal Forming Technology |
| CN113909326A (en) * | 2021-08-31 | 2022-01-11 | 宁波固强机械有限公司 | Die for manufacturing cover plate of energy recovery device and manufacturing method of cover plate of energy recovery device |
-
2008
- 2008-05-22 CN CNU2008200363908U patent/CN201205591Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862802B (en) * | 2009-04-20 | 2012-01-04 | 上海汇众汽车制造有限公司 | Preforging die for automobile rear lower control arm and forging method thereof |
| CN103272953A (en) * | 2013-06-03 | 2013-09-04 | 浙江炜驰汽车零部件股份有限公司 | One-step forming device for brake pedal arms |
| CN103272953B (en) * | 2013-06-03 | 2015-12-23 | 浙江炜驰汽车零部件股份有限公司 | A kind of brake pedal arm one-shot forming apparatus |
| CN106740755A (en) * | 2016-12-26 | 2017-05-31 | 重庆协成五金制造有限公司 | A kind of brake treadle mechanism and Sheet Metal Forming Technology |
| CN113909326A (en) * | 2021-08-31 | 2022-01-11 | 宁波固强机械有限公司 | Die for manufacturing cover plate of energy recovery device and manufacturing method of cover plate of energy recovery device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuhu Zhongshan Science & Technology Co., Ltd. Assignor: Wuhu Zhongxing Machinery Technology Development Co., Ltd. Contract fulfillment period: 2008.11.29 to 2014.11.28 Contract record no.: 2009340000170 Denomination of utility model: Cold heading die for coupling brake treadle arm and support tube integrally Granted publication date: 20090311 License type: Exclusive license Record date: 20090814 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.29 TO 2014.11.28; CHANGE OF CONTRACT Name of requester: WUHU ZHONGSHAN SCIENCE CO., LTD. Effective date: 20090814 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20090311 Effective date of abandoning: 20080522 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20090311 Effective date of abandoning: 20080522 |