CN108662007B - EPB integrated inhaul cable assembly and production method thereof - Google Patents
EPB integrated inhaul cable assembly and production method thereof Download PDFInfo
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- CN108662007B CN108662007B CN201810402105.8A CN201810402105A CN108662007B CN 108662007 B CN108662007 B CN 108662007B CN 201810402105 A CN201810402105 A CN 201810402105A CN 108662007 B CN108662007 B CN 108662007B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
- F16C1/26—Construction of guiding-sheathings or guiding-tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention provides an EPB integrated inhaul cable assembly, which comprises: a screw and a cable thread sleeve; the cable is characterized in that a detachable copper inner sleeve is partially arranged on the inner side wall of the bottom end of the cable threaded sleeve, and a first internal thread is arranged on the inner side wall of the copper inner sleeve. According to the invention, the detachable copper inner sleeve is partially arranged on the inner side wall of the cable screw sleeve, so that the copper inner sleeve is only arranged at the part matched with the screw rod, the whole cable screw sleeve is not required to be made of copper materials, and the existing cable screw sleeve has the defects of larger weight and higher cost.
Description
Technical Field
The invention relates to the field of automobile part processing, in particular to an EPB integrated inhaul cable assembly and a production method thereof.
Background
The existing EPB (electronic parking system) inhaul cable assembly is usually integrally made of copper materials, so that the weight is large and the cost is high.
Such as: patent document CN201720006450.0 discloses a patent document of "a novel screw thread sleeve structure", which discloses a screw thread sleeve structure, wherein the whole inhaul cable thread sleeve is made of copper material, so that the weight and cost are high.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide an EPB integrated inhaul cable assembly, which overcomes the defects of larger weight and higher cost of the traditional inhaul cable assembly.
The invention further aims to provide a production mode of the EPB integrated inhaul cable assembly, and the defect that the processing technology of the production mode of the integrated inhaul cable assembly is complex is overcome.
(II) technical scheme
In order to solve the above technical problem, the present invention provides an EPB integrated cable assembly, including: a screw and a cable thread sleeve; the cable is characterized in that a detachable copper inner sleeve is partially arranged on the inner side wall of the bottom end of the cable threaded sleeve, and a first internal thread is arranged on the inner side wall of the copper inner sleeve. According to the invention, the detachable copper inner sleeve is partially arranged on the inner side wall of the cable screw sleeve, so that the copper inner sleeve is only arranged at the part matched with the screw rod, the whole cable screw sleeve is not required to be made of copper materials, and the existing cable screw sleeve has the defects of larger weight and higher cost.
Preferably, the outer side wall of the copper inner sleeve is provided with a first external thread; and a second internal thread matched with the first external thread is arranged on the inner side wall of the bottom end of the inhaul cable thread sleeve.
Preferably, the top end of the cable thread insert is provided with a neck part which is at least partially inwards sunken.
Preferably, the screw comprises a shaft body, and the outer side wall of the shaft body is provided with a second outer thread matched with the first inner thread.
Preferably, the end part of the screw rod is a cylindrical rod head, and a fixing hole is formed in the bottom surface of the end part of the screw rod; the end part of the rod head is also provided with a plurality of convex fixing lugs; and the outer side wall of one end of the club body close to the club head is provided with four reinforcing ribs.
The invention also provides a production mode of the EPB integrated inhaul cable assembly, which comprises the following steps:
1) heating a steel screw mandrel;
2) placing the treated screw mandrel in a punch die, and punching by using a punch to obtain a screw intermediate; the screw rod intermediate comprises a rod body and an end head, wherein the outer side wall of one end, close to the end head, of the rod body is provided with four reinforcing ribs, and the end head comprises a cylindrical rod head and a convex ring arranged on the outer side of the rod head;
3) the redundant part of the convex ring is pinned on the main shaft of the numerical control lathe to form a fixing lug;
4) then turning an external thread on the rod body on a main shaft of the numerical control lathe;
5) drilling a hole on the rod head, roughly boring a step, and supporting a fixed hole in the rod head; preparing a screw;
6) clamping the excircle of the guy cable thread sleeve forge piece, and roughly turning the end face and the excircle; turning around, clamping the excircle on the other side, and turning the end face and the excircle;
7) drilling a stay cable thread sleeve forge piece and roughly boring step holes on two sides; cutting off the end part of the guy cable thread sleeve forging to form a neck part, and then lathing internal threads; manufacturing a cable thread sleeve;
8) finely turning external threads at one end of the inner sleeve forge piece made of copper; turning around the other end of the copper inner sleeve, and finely turning internal threads to obtain the copper inner sleeve. According to the invention, the screw core rod is stamped into the screw intermediate with the reinforcing ribs at one time instead of further cutting the reinforcing ribs after stamping in the prior art, so that the production mode is greatly simplified, and the production time is shortened.
Preferably, the punch press die comprises an upper die and a lower die, wherein the upper die is provided with a circular groove and an annular groove body which is positioned on one side of the circular groove and has an outer diameter larger than that of the circular groove, and the circular groove is communicated with the annular groove body; the lower die is provided with a cylindrical rod groove, the inner side wall of the upper end of the rod groove is locally sunken inwards to form four lug chambers, and the axial leads of the circular groove, the annular groove body and the rod groove are overlapped. The punch press die is convenient for punching the screw rod core rod at one time.
Preferably, an upper backing plate is further fixed above the upper die, a lower backing plate is further fixed below the lower die, and a damping spring is fixed between the upper backing plate and the lower backing plate.
Preferably, the lower end of the rod groove is communicated with an air pipe, the air pipe is provided with an air tank, and hydrogen-helium mixed gas is filled in the air tank; the air pressure of the air tank is configured to be enough to push up the screw mandrel; a gap is reserved between the rod groove and the rod body so as to facilitate the air flow to pass through. Preferably, the hydrogen-helium mixed gas has a hydrogen content of 0.02% (volume percent). A gas tank filled with hydrogen-helium mixed gas is further arranged, the gas tank is communicated with the rod groove through a gas pipe, the hydrogen-helium mixed gas pushes up the screw rod core rod to play a role in slowing down the stamping speed of the screw rod core rod, meanwhile, a part of the hydrogen-helium mixed gas flows upwards through a micro gap between the core rod and the rod groove in the stamping process and passes through the hot extrusion deformation stamping part, so that oxygen of the core rod is taken away, a helium protective environment is formed, the oxidation of the surface of the core rod is prevented, a small amount of hydrogen reacts with free oxygen atoms on the surface of the core rod, and the oxidation process of the surface of the; the high temperature generated on the surface of the core rod in the extrusion process is also taken away by the flowing of the gas, so that the deformation of the core rod is more stable, and the processing precision is improved.
Preferably, an exhaust pipe communicated with the outside is arranged in the lower die; the upper die is also provided with a semi-cylindrical upper air guide curved surface, and the lower die is also provided with a semi-cylindrical lower air guide curved surface; the upper air guide curved surface and the lower air guide curved surface are matched together to form an air guide cavity, one end of the air guide cavity is communicated with the cavity of the annular groove body, and the other end of the air guide cavity is communicated with the exhaust pipe. The gas guide cavity communicated with the exhaust pipe is arranged, so that the hydrogen-helium mixed gas can be guided and beaten away to form airflow with stable direction, part of the core rod is allowed to enter the gas guide cavity locally in the extrusion process, the design is ingenious, and the stamping precision is further improved.
(III) advantageous effects
The invention provides an EPB integrated inhaul cable assembly and a production method thereof, and the EPB integrated inhaul cable assembly has the following advantages:
1. according to the invention, the detachable copper inner sleeve is partially arranged on the inner side wall of the cable screw sleeve, so that the copper inner sleeve is only arranged at the part matched with the screw rod, the whole cable screw sleeve is not required to be made of copper materials, and the existing cable screw sleeve has the defects of larger weight and higher cost.
2. According to the invention, the screw core rod is stamped into the screw intermediate with the reinforcing ribs at one time instead of further cutting the reinforcing ribs after stamping in the prior art, so that the production mode is greatly simplified, and the production time is shortened.
3. The punch press die is convenient for punching the screw rod core rod at one time.
4. A gas tank filled with hydrogen-helium mixed gas is further arranged, the gas tank is communicated with the rod groove through a gas pipe, the hydrogen-helium mixed gas pushes up the screw rod core rod to play a role in slowing down the stamping speed of the screw rod core rod, meanwhile, a part of the hydrogen-helium mixed gas flows upwards through a micro gap between the core rod and the rod groove in the stamping process and passes through the hot extrusion deformation stamping part, so that oxygen of the core rod is taken away, a helium protective environment is formed, the oxidation of the surface of the core rod is prevented, a small amount of hydrogen reacts with free oxygen atoms on the surface of the core rod, and the oxidation process of the surface of the; the high temperature generated on the surface of the core rod in the extrusion process is also taken away by the flowing of the gas, so that the deformation of the core rod is more stable, and the processing precision is improved.
5. The gas guide cavity communicated with the exhaust pipe is arranged, so that the hydrogen-helium mixed gas can be guided and beaten away to form airflow with stable direction, part of the core rod is allowed to enter the gas guide cavity locally in the extrusion process, the design is ingenious, and the stamping precision is further improved.
Drawings
Fig. 1 is a schematic sectional view of a cable barrel of an EPB integrated cable assembly according to embodiment 1 of the present invention;
FIG. 2 is a schematic cross-sectional view of a screw of an EPB integrated cable assembly according to embodiment 1 of the present invention;
FIG. 3 is a schematic top view of the screw of FIG. 2 according to embodiment 1 of the present invention;
FIG. 4 is a schematic view showing the outer structure of a screw intermediate of example 2 of the present invention;
fig. 5 is a schematic sectional view of a punch die according to example 2 of the present invention.
1. A screw; 2. a stay cable thread sleeve; 3. a copper inner sleeve; 4. punching a die; 5. a first internal thread; 6. a first external thread; 7. a second internal thread; 8. a neck portion; 9. a shaft body; 10. a second external thread; 11. a club head; 12. a fixing hole; 13. fixing the ear; 14. a screw intermediate;
15. a rod body; 16. a tip; 17. reinforcing ribs; 18. a convex ring; 19. an upper die; 20. a lower die;
21. a circular groove; 22. an annular groove body; 23. a rod groove; 24. an ear chamber; 25. an upper base plate; 26. a lower base plate; 27. a damping spring; 28. a breather pipe; 29. a gas tank; 30. an exhaust pipe;
31. an upper air guiding curved surface; 32. a lower air guiding curved surface; 33. a gas conducting cavity; 34. a pressurized air pump.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The present invention is defined in terms of the mounting position in fig. 1, both front and rear and left and right.
Example 1
As shown in fig. 1, fig. 2 and fig. 3, the present invention provides an EPB integrated cable assembly, including: a screw rod 1 and a guy cable thread sleeve 2; the cable is characterized in that a detachable copper inner sleeve 3 is partially arranged on the inner side wall of the bottom end of the cable threaded sleeve, and a first internal thread 5 is arranged on the inner side wall of the copper inner sleeve. The outer side wall of the copper inner sleeve is provided with a first external thread 6; and a second internal thread 7 matched with the first external thread is arranged on the inner side wall of the bottom end of the inhaul cable thread sleeve. The top end of the inhaul cable thread sleeve is provided with a neck part 8 which is at least partially inwards sunken. The screw comprises a body 9, and the outer side wall of the body is provided with a second outer thread 10 matched with the first inner thread. The end part of the screw rod is a cylindrical rod head 11, and the bottom surface of the end part of the screw rod is provided with a fixing hole 12; the end part of the club head is also provided with a plurality of convex fixing lugs 13, and the outer side wall of one end of the club body close to the club head is provided with four reinforcing ribs.
Example 2
As shown in fig. 4, the production method of the EPB integrated cable assembly provided by the present invention includes the following steps:
1) heating a steel screw mandrel;
2) placing the treated screw mandrel in a punch die, and punching by using a punch to obtain a screw intermediate 14; the screw rod intermediate comprises a rod body 15 and a tip 16, wherein the outer side wall of one end, close to the tip, of the rod body is provided with four reinforcing ribs 17, and the tip comprises a cylindrical rod head and a convex ring 18 arranged on the outer side of the rod head;
3) the redundant part of the convex ring is pinned on the main shaft of the numerical control lathe to form a fixing lug;
4) then turning an external thread on the rod body on a main shaft of the numerical control lathe;
5) drilling a hole on the rod head, roughly boring a step, and supporting a fixed hole in the rod head; preparing a screw;
6) clamping the excircle of the guy cable thread sleeve forge piece, and roughly turning the end face and the excircle; turning around, clamping the excircle on the other side, and turning the end face and the excircle;
7) drilling a stay cable thread sleeve forge piece and roughly boring step holes on two sides; clamping an outer circle, leveling one end face by taking one end face as a reference, and finely boring a step hole on one side to a required size; turning around, clamping the outer circle, leveling the end face of the former reference by taking the other end face as a reference, finely boring the step hole on the other side and the step depth to required sizes, and taking the step hole on one side as an inner positioning hole; cutting off the end part of the guy cable thread sleeve forging to form a neck part, and then lathing internal threads; manufacturing a cable thread sleeve;
8) finely turning external threads at one end of the inner sleeve forge piece made of copper; turning around the other end of the copper inner sleeve, and finely turning internal threads to obtain the copper inner sleeve.
As shown in fig. 5, the punch press die 4 includes an upper die 19 and a lower die 20, the upper die has a circular groove 21 and an annular groove body 22 located on one side of the circular groove and having an outer diameter larger than that of the circular groove, and the circular groove is communicated with the annular groove body; the lower die is provided with a cylindrical rod groove 23, the inner side wall of the upper end of the rod groove is locally sunken inwards to form four lug chambers 24, and the axial leads of the circular groove, the annular groove body and the rod groove are overlapped. The punch press die is convenient for punching the screw rod core rod at one time. An upper backing plate 25 is further fixed above the upper die, a lower backing plate 26 is further fixed below the lower die, and a damping spring 27 is fixed between the upper backing plate and the lower backing plate.
The lower end of the rod groove is communicated with an air pipe 28, the air pipe is provided with an air tank 29, and hydrogen-helium mixed gas is filled in the air tank; the air pressure of the air tank is configured to be enough to push up the screw mandrel; a gap is reserved between the rod groove and the rod body so as to facilitate the air flow to pass through. The hydrogen content in the hydrogen-helium mixed gas was 0.02% (by volume). An exhaust pipe 30 communicated with the outside is arranged in the lower die; the upper die is also provided with a semi-cylindrical upper air guide curved surface 31, and the lower die is also provided with a semi-cylindrical lower air guide curved surface 32; the upper air guide curved surface and the lower air guide curved surface are matched together to form an air guide cavity 33, one end of the air guide cavity is communicated with the cavity of the annular groove body, and the other end of the air guide cavity is communicated with the exhaust pipe. The trachea also houses a pressurised air pump 34.
In the embodiment of the invention, the screw core rod made of steel is subjected to heating treatment; placing the treated screw mandrel in a punch die, and punching by using a punch to obtain a screw intermediate; the redundant part of the convex ring is pinned on the main shaft of the numerical control lathe to form a fixing lug; then turning an external thread on the rod body on a main shaft of the numerical control lathe; drilling a hole on the rod head, roughly boring a step, and supporting a fixed hole in the rod head; preparing a screw; clamping the excircle of the guy cable thread sleeve forge piece, and roughly turning the end face and the excircle; turning around, clamping the excircle on the other side, and turning the end face and the excircle; drilling a stay cable thread sleeve forge piece and roughly boring step holes on two sides; clamping an outer circle, leveling one end face by taking one end face as a reference, and finely boring a step hole on one side to a required size; turning around, clamping the outer circle, leveling the end face of the former reference by taking the other end face as a reference, finely boring the step hole on the other side and the step depth to required sizes, and taking the step hole on one side as an inner positioning hole; cutting off the end part of the guy cable thread sleeve forging to form a neck part, and then lathing internal threads; manufacturing a cable thread sleeve; finely turning external threads at one end of the inner sleeve forge piece made of copper; turning around the other end of the copper inner sleeve, and finely turning internal threads to obtain the copper inner sleeve.
The above embodiments are only used for illustrating the present invention, and the structure, connection mode and the like of each component can be changed, and all equivalent changes and improvements made on the basis of the technical scheme of the present invention should not be excluded from the protection scope of the present invention.
Claims (5)
1. An EPB integrated inhaul cable assembly production mode comprises a screw rod and an inhaul cable thread sleeve; a detachable copper inner sleeve is partially arranged on the inner side wall of the bottom end of the inhaul cable threaded sleeve, and a first internal thread is arranged on the inner side wall of the copper inner sleeve; the outer side wall of the copper inner sleeve is provided with a first external thread; a second internal thread matched with the first external thread is arranged on the inner side wall of the bottom end of the inhaul cable thread sleeve; the top end of the inhaul cable thread sleeve is provided with a neck part which is at least partially inwards sunken; the screw comprises a screw body, and the outer side wall of the screw body is provided with a second outer thread matched with the first inner thread; the end part of the screw rod is a cylindrical rod head, and a fixing hole is formed in the bottom surface of the end part of the screw rod; the end part of the rod head is also provided with a plurality of convex fixing lugs; the club body is provided with four reinforcing ribs on the outer side wall of one end close to the club head, and is characterized by comprising the following steps:
1) heating a steel screw mandrel;
2) placing the treated screw mandrel in a punch die, and punching by using a punch to obtain a screw intermediate; the screw rod intermediate comprises a rod body and an end head, wherein the outer side wall of one end, close to the end head, of the rod body is provided with four reinforcing ribs, and the end head comprises a cylindrical rod head and a convex ring arranged on the outer side of the rod head;
3) the redundant part of the convex ring is pinned on the main shaft of the numerical control lathe to form a fixing lug;
4) then turning an external thread on the rod body on a main shaft of the numerical control lathe;
5) drilling a hole on the rod head, roughly boring a step, and supporting a fixed hole in the rod head; preparing a screw;
6) clamping the excircle of the guy cable thread sleeve forge piece, and roughly turning the end face and the excircle; turning around, clamping the excircle on the other side, and turning the end face and the excircle;
7) drilling a stay cable thread sleeve forge piece and roughly boring step holes on two sides; cutting off the end part of the guy cable thread sleeve forging to form a neck part, and then lathing internal threads; manufacturing a cable thread sleeve;
8) finely turning external threads at one end of the inner sleeve forge piece made of copper; turning around the other end of the copper inner sleeve, and finely turning internal threads to obtain the copper inner sleeve.
2. The production mode of the EPB integrated cable assembly according to claim 1, wherein the punch press die comprises an upper die and a lower die, the upper die is provided with a circular groove and an annular groove body which is positioned on one side of the circular groove and has an outer diameter larger than that of the circular groove, and the circular groove is communicated with the annular groove body; the lower die is provided with a cylindrical rod groove, the inner side wall of the upper end of the rod groove is locally sunken inwards to form four lug chambers, and the axial leads of the circular groove, the annular groove body and the rod groove are overlapped.
3. The production method of the EPB integrated cable assembly according to claim 2, wherein an upper pad plate is further fixed above the upper die, a lower pad plate is further fixed below the lower die, and a damping spring is fixed between the upper pad plate and the lower pad plate.
4. The production mode of the EPB integrated cable assembly according to claim 3, wherein a gas pipe is connected to a lower end of the rod groove, and a gas tank is installed on the gas pipe and filled with a hydrogen-helium mixture gas; the air pressure of the air tank is configured to be enough to push up the screw mandrel; a gap is reserved between the rod groove and the rod body so as to facilitate the air flow to pass through.
5. The production method of an EPB integrated cable assembly according to claim 4, wherein an exhaust pipe communicating with the outside is further provided in the lower mold; the upper die is also provided with a semi-cylindrical upper air guide curved surface, and the lower die is also provided with a semi-cylindrical lower air guide curved surface; the upper air guide curved surface and the lower air guide curved surface are matched together to form an air guide cavity, one end of the air guide cavity is communicated with the cavity of the annular groove body, and the other end of the air guide cavity is communicated with the exhaust pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402105.8A CN108662007B (en) | 2018-04-28 | 2018-04-28 | EPB integrated inhaul cable assembly and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402105.8A CN108662007B (en) | 2018-04-28 | 2018-04-28 | EPB integrated inhaul cable assembly and production method thereof |
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| CN108662007A CN108662007A (en) | 2018-10-16 |
| CN108662007B true CN108662007B (en) | 2020-06-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110057761A (en) * | 2009-11-25 | 2011-06-01 | 주식회사 만도 | Electric parking brake |
| CN203641424U (en) * | 2013-10-30 | 2014-06-11 | 东莞市盛斯盟五金有限公司 | Novel screw stem component |
| CN106195067A (en) * | 2016-08-29 | 2016-12-07 | 杭州南宇派科技有限公司 | The driving assembly and manufacture the manufacture method of this driving assembly of a kind of parking braking clamp |
| CN206495923U (en) * | 2017-01-04 | 2017-09-15 | 浙江亚太机电股份有限公司 | A kind of new E PB screw rod screw bushing structures |
| CN208348273U (en) * | 2018-04-28 | 2019-01-08 | 杭州萧冠机械有限公司 | EPB integrated form inhaul cable assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10316897B2 (en) * | 2013-07-29 | 2019-06-11 | Ford Global Technologies, Llc | Drive hub for planet pinion carrier freeness check |
-
2018
- 2018-04-28 CN CN201810402105.8A patent/CN108662007B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110057761A (en) * | 2009-11-25 | 2011-06-01 | 주식회사 만도 | Electric parking brake |
| CN203641424U (en) * | 2013-10-30 | 2014-06-11 | 东莞市盛斯盟五金有限公司 | Novel screw stem component |
| CN106195067A (en) * | 2016-08-29 | 2016-12-07 | 杭州南宇派科技有限公司 | The driving assembly and manufacture the manufacture method of this driving assembly of a kind of parking braking clamp |
| CN206495923U (en) * | 2017-01-04 | 2017-09-15 | 浙江亚太机电股份有限公司 | A kind of new E PB screw rod screw bushing structures |
| CN208348273U (en) * | 2018-04-28 | 2019-01-08 | 杭州萧冠机械有限公司 | EPB integrated form inhaul cable assembly |
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| CN108662007A (en) | 2018-10-16 |
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