CN101367165B - Manufacturing method for integrating brake treadle arm and stay pipe - Google Patents
Manufacturing method for integrating brake treadle arm and stay pipe Download PDFInfo
- Publication number
- CN101367165B CN101367165B CN2008100243794A CN200810024379A CN101367165B CN 101367165 B CN101367165 B CN 101367165B CN 2008100243794 A CN2008100243794 A CN 2008100243794A CN 200810024379 A CN200810024379 A CN 200810024379A CN 101367165 B CN101367165 B CN 101367165B
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- stay pipe
- brake pedal
- pedal arm
- die
- mold core
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Abstract
The invention discloses a manufacturing method for connecting a brake pedal arm and a supporting tube into a whole, which comprises the following steps: a. a punching die is manufactured, and a connecting hole of the brake pedal arm is punched; b. a cold heading die is manufactured, is arranged and adjusted on a punch press; c. the brake pedal arm and the supporting tube are arranged on a lower die, and the lower end of the supporting tube is sleeved on a lower die core mechanism of the lower die; d. a filling part made of plastic materials is placed into the supporting tube from the upper end of the supporting tube; and e. the punch press is started. With the production method for connecting the brake pedal arm and the supporting tube into a whole, the firm connection of the brake pedal arm and the supporting tube is realized by adopting a tooling mould, which avoids unstable factors of batch production caused by a welding mode; when a brake pedal assembly of a vehicle works, a brakereturn spring is not rubbed again, which can ensure that the brake pedal assembly is safe and reliable in the authorized service life. The production method has steady quality of batch production, can reduce workload, and improve production efficiency.
Description
Technical field
The present invention relates to the vehicle brake pedal assembly, especially relate to the preparation method that brake pedal arm and stay pipe are connected as a single entity.
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.
Summary of the invention
Technical problem to be solved by this invention is: a kind of preparation method that brake pedal arm and stay pipe are connected as a single entity is provided, this can ensure the quality of products the preparation method that brake pedal arm and stay pipe are connected as a single entity stable, satisfy reliability requirement, can reduce workload, enhance productivity.
Solve this technical problem, technical scheme of the present invention is: a kind of preparation method that brake pedal arm and stay pipe are fused, and its step is as follows:
A, making perforating die are gone out the connection holes of brake pedal arm, and the connection holes of brake pedal arm is that the uniform outside a plurality of breach of circular hole and circular hole periphery are formed;
B, making are also installed on punch press and are regulated cold heading die, this cold heading die comprises upper die and lower die, patrix is by cope match-plate pattern, form with affixed upper die body and the upper mold core mechanism of cope match-plate pattern, counterdie is by lower bolster, form with affixed lower mold body and the lower mold core mechanism of lower bolster, 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 locating piece that is provided with on the end of brake pedal arm and a side and the counterdie contacts, and the lower end of stay pipe is enclosed within the lower mold core mechanism 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 the brake pedal arm of stay pipe bloat centring ring respectively, and the filling piece extrusion filling in the stay pipe is in the endoporus of the distortion of stay pipe.
Described 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, has the interval that forms centring ring after the stay pipe crimp between the upper surface of described upper mold core and brake pedal arm, described 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, has the interval that forms centring ring after the stay pipe crimp between the lower surface of described lower mold core and brake pedal arm, when upper die and lower die closed up, the upper die and lower die middle part had the cavity that the stay pipe axial upset forms centring ring.
A plurality of breach of the connection holes of described brake pedal arm are distributed in the periphery of circular hole.
The faying face place of the patrix of described cold heading die and counterdie is provided with cushion.
The top of described cold heading die counterdie is a sphere, and the bottom of described cold heading die patrix is a sphere.
Two ends at cold heading die moulding rear supporting tube (1) are provided with the extension that is threaded again respectively.
The preparation method that adopts the present invention that brake pedal arm and stay pipe are connected as a single entity, 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 present invention is done explanation in further detail with the preparation method that brake pedal arm and stay pipe are connected as a single entity;
The structural representation of the cold heading die that Fig. 1 fuses brake pedal arm and stay pipe for the present invention;
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 preparation method that adopts the present invention that brake pedal arm and stay pipe are connected as a single entity, 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 (3)
1. preparation method that brake pedal arm and stay pipe are fused, its step is as follows:
A, making perforating die are gone out the connection holes of brake pedal arm, and the connection holes of brake pedal arm (15) is that the uniform outside a plurality of breach (16) of circular hole and circular hole periphery are formed;
B, make and on punch press, install and regulate cold heading die, this cold heading die comprises upper die and lower die, patrix is by cope match-plate pattern, upper die body affixed with cope match-plate pattern (10) and upper mold core mechanism form, counterdie is by lower bolster, lower mold body affixed with lower bolster (4) and lower mold core mechanism form, described 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, 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), described 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, 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), 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 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 locating piece that is provided with on the end of brake pedal arm and a side and the counterdie contacts, and the lower end of stay pipe is enclosed within the lower mold core mechanism 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 (12) (15) of stay pipe (11) bloat centring ring (14) respectively, and filling piece (13) the extrusion filling in the stay pipe (11) is in the endoporus of the distortion of stay pipe.
2. the preparation method that brake pedal arm and stay pipe are fused according to claim 1, it is characterized in that: the faying face place of the patrix of described cold heading die and counterdie is provided with cushion.
3. the preparation method that brake pedal arm and stay pipe are fused according to claim 1 is characterized in that: the two ends at cold heading die moulding rear supporting tube (11) are provided with the extension that is threaded again respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100243794A CN101367165B (en) | 2008-05-22 | 2008-05-22 | Manufacturing method for integrating brake treadle arm and stay pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100243794A CN101367165B (en) | 2008-05-22 | 2008-05-22 | Manufacturing method for integrating brake treadle arm and stay pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101367165A CN101367165A (en) | 2009-02-18 |
| CN101367165B true CN101367165B (en) | 2010-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100243794A Expired - Fee Related CN101367165B (en) | 2008-05-22 | 2008-05-22 | Manufacturing method for integrating brake treadle arm and stay pipe |
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| CN (1) | CN101367165B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106514107B (en) * | 2016-12-23 | 2018-11-30 | 广东南海昌和模具有限公司 | A kind of device for automotive muffler assembly |
| CN112536561B (en) * | 2020-11-02 | 2023-02-14 | 中车石家庄车辆有限公司 | Pedal positioning device and method |
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- 2008-05-22 CN CN2008100243794A patent/CN101367165B/en not_active Expired - Fee Related
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| CN101367165A (en) | 2009-02-18 |
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Granted publication date: 20100818 Termination date: 20160522 |
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| CF01 | Termination of patent right due to non-payment of annual fee |