CN110270600A - A kind of steering post jacket pipe manufacturing method - Google Patents
A kind of steering post jacket pipe manufacturing method Download PDFInfo
- Publication number
- CN110270600A CN110270600A CN201910552506.6A CN201910552506A CN110270600A CN 110270600 A CN110270600 A CN 110270600A CN 201910552506 A CN201910552506 A CN 201910552506A CN 110270600 A CN110270600 A CN 110270600A
- Authority
- CN
- China
- Prior art keywords
- sliding rail
- formed punch
- piston rod
- steering post
- pipe manufacturing
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, rods or tubes
- B21C23/085—Making tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/21—Presses specially adapted for extruding metal
- B21C23/212—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/21—Presses specially adapted for extruding metal
- B21C23/217—Tube extrusion presses
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The present invention relates to a kind of steering post jacket pipe manufacturing methods, including following procedure of processing: step 1: blanking, and steel pipe is cut according to target size and obtains materials in the tube；Step 2: saponification process；Step 3: cold extrusion shaped；Step 4: materials in the tube both ends right in the face；Step 5: completing the process, and obtains casing.The present invention has the effect of reducing material loss, improves production efficiency.
Description
Technical field
The present invention relates to a kind of manufacturing methods of auto parts and components, more particularly, to a kind of steering post jacket pipe manufacturing method.
Background technique
As shown in Figure 1-3, a kind of 6 casing 29 of steering column comprising inserting paragraph 1 and adjusting section 2 coaxially and in a tubular form,
Wherein the internal diameter of inserting paragraph 1 is greater than the internal diameter for adjusting section 2, the outer diameter of inserting paragraph 1 also greater than the outer diameter for adjusting section 2, inserting paragraph 1 with
It adjusts between section 2 by the way that both inclined oblique 3 transition of section of adjusting junction is arranged.In addition, being also set up on the inner wall for adjusting section 2
There is link slot 4, link slot 4 and adjusting section 2 are isometric, and link slot 4 is opened up along the direction parallel with 2 axis of section is adjusted, and
Link slot 4 is equally spaced along the circumferentially-spaced of section 2 is adjusted.
As shown in Figure 1, 2,6 casing 29 of steering column is used cooperatively with vehicle steering wheel 5, with the length of telescopic adjustment steering wheel 5
It is short.Steering wheel 5 it is coaxial be fixedly connected with steering column 6, be formed with company along the direction parallel with its axis on the surface of steering column 6
Narrow bars 7, connection strap 7 are equally spaced along the circumferentially-spaced of steering column 6, and connection strap 7 is used cooperatively with connection.Casing 29 and steering
When column 6 is used cooperatively, steering column 6 is inserted into from 2 one end of section is adjusted, and the inserting paragraph 1 of casing 29 then turns to components with others
Connection.Because the cooperation of link slot 4 and connection strap 7 enables steering column 6 to be in axial sliding connection relative to casing 29, and
It is circumferentially fixed.Therefore, it during 5 telescopic adjustment length of steering wheel, is adjusted although will drive steering column 6 and stretch in adjusting section 2
Section, but the steering of casing 29 is still able to drive by steering wheel rotation 5, and final band automobile wheel turns to.
Existing 29 manufacturing method of casing is as follows:
S1: steel pipe is cut according to target size and obtains materials in the tube by blanking；
S2: right in the face is carried out to the both ends of materials in the tube, the both ends of materials in the tube is made to keep smooth；
S3: internal-and external diameter Vehicle Processing, so that the outer diameter of linkage section becomes smaller, so that the internal diameter of inserting paragraph 1 becomes larger；
S4: the kerve roughing of link slot 4, using Machine-Tool Control cutter along axially reciprocal fortune is done in parallel direction with materials in the tube
It is dynamic, to sequentially form the link slot 4 for being circumferentially distributed in and adjusting and connecing on section inner wall；
S5: link slot 4 kerve finishing, moved using more fine cutter along link slot 4, thus to link slot 4 into
Row finishing, so that 4 inner wall of link slot is more flat and smooth；
S6: processing is completed, 6 casing 29 of steering column is obtained.
It is very huge to the loss of raw material but in existing 29 process of casing, such as the internal-and external diameter vehicle of materials in the tube
Processing and link slot 4 processing raw material can be caused to be lost, and link slot 4 need together together process, processing duration compared with
Long, productivity effect is lower.
Summary of the invention
In view of the deficienciess of the prior art, the invention reside in a kind of steering post jacket pipe manufacturing method is provided, advantage exists
In reduction material loss, improve production efficiency.
Technical purpose of the invention has the technical scheme that a kind of steering post jacket pipe manufacturing method,
Including following procedure of processing:
Step 1: steel pipe is cut according to target size and obtains materials in the tube by blanking；
Step 2: saponification process；
Step 3: cold extrusion shaped；
Step 4: materials in the tube both ends right in the face；
Step 5: completing the process, and obtains casing.
By using above-mentioned technical proposal, materials in the tube utilize the disposable extrusion forming of cold extruding technique, therefore eliminate inside and outside
The process of diameter Vehicle Processing and kerve, accelerates the procedure of processing of casing, while reducing the loss of raw material.
The present invention is further arranged to: the saponification process in step 2, for materials in the tube are immersed in 70-90 degrees Celsius of temperature
20-40 seconds in lubricant, the lubricant is dissolved in hot water for industrial soap to be obtained.
By using above-mentioned technical proposal, after materials in the tube impregnate in the lubricant taking-up again, formd on the surface of materials in the tube
It is saponified film, so that after materials in the tube are extruded together, it is easier to take out from extrusion die cavity.
The present invention is further arranged to: the materials in the tube utilize progress wind cooling temperature lowering after taking out in lubricant.
By using above-mentioned technical proposal, so that materials in the tube quickly cool down, and make the surface rapid draing shape of materials in the tube
At one layer of saponification film.
The present invention is further arranged to: the cold extrusion in step 3 needs to carry out using hydraulic press, and the hydraulic press includes
Lower mold on formed punch and hydraulic machine base, the formed punch include with inserting paragraph be adapted upper mold segment and with adjust section phase
The lower mold segment adapted to, be provided in the lower mold segment with its axial parallel press strip, press strip is circumferentially distributed, the lower mold packet
Die cavity is included, the shape of the die cavity and the outer wall shape of casing are adapted, after the formed punch enters die cavity, formed punch and mould intracavity wall
It is formed with deformation chamber, the lower end in the die cavity is provided with thimble.
By using above-mentioned technical proposal, the shape of formed punch and die cavity is adapted with the shape of casing, in processing,
One end of materials in the tube is inserted into lower mold, formed punch is then controlled and enters in die cavity, materials in the tube mobile geodetic deformation and one in deformation chamber
Bodily form packaged tube.
The present invention is further arranged to: the opening of the die cavity is provided with chamfering.
By using above-mentioned technical proposal, the opening that chamfering expands die cavity is set, so that materials in the tube more easily enter
Into die cavity.
The present invention is further arranged to: mutually matched discharge mechanism, institute are provided on the pedestal and upper mold head
State discharge mechanism include it is inclined determine sliding rail and dynamic sliding rail, telescopic be slidably connected to of the dynamic sliding rail determines sliding rail, described
Dynamic sliding rail is connected with elastic string, and the elastic string is connect with the piston rod of the hydraulic cylinder on hydraulic press, and the piston rod is in height
When place, the dynamic sliding rail is in elongation state, and the one end for moving sliding rail at this time is located at below formed punch, and the formed punch is in lowest part
When, the dynamic sliding rail is in and shrinks in the state determined in sliding rail, and magnet block, the piston rod of the hydraulic cylinder are embedded on the formed punch
In be provided with ejection cylinder, the piston rod of the ejection cylinder is parallel with the piston rod of hydraulic cylinder, the piston of the ejection cylinder
The distance between upper mold segment of bar and formed punch is less than the thickness of casing inserting paragraph.
By using above-mentioned technical proposal, after casing forms in die cavity, formed punch leaves die cavity, while thimble will
One end of casing ejects die cavity, and casing is still socketed in outside formed punch because of the attraction by magnet block, in the piston of hydraulic cylinder
Bar can drive dynamic sliding rail from determining to stretch out in sliding rail by elastic string when rising, and dynamic higher one end of sliding rail is made to be located at formed punch
Lower section, the set tube top being socketed on formed punch can be fallen at this time to dynamic sliding rail by the piston rod elongation of driving ejection cylinder
On, it then slides to determining sliding rail and exists, in the casing for determining one end that sliding rail is told somebody what one's real intentions are and placing container completion of processing ready to receive.
The present invention is further arranged to: side connection of the piston rod of the elastic string and hydraulic cylinder close to dynamic sliding rail, institute
It states and determines the lower one end of sliding rail and be connected with elastic string.
By using above-mentioned technical proposal, because elastic string is connect with the lower one end for determining sliding rail, so that elastic string
Angle between hydraulic cylinder piston rod is bigger, so that the piston rod in hydraulic cylinder is easier to drive dynamic sliding rail when rising
Elongation.
The present invention is further arranged to: the two sides for determining sliding rail are provided with along the guide groove for determining the setting of sliding rail length direction, institute
It states sliding rail and is connected with the first link block for stretching out guide groove, the side for determining sliding rail is additionally provided with the second link block, described
Tension part is provided between first link block and the second link block.
By using above-mentioned technical proposal, in staking punch decline, tension part pulls the first link block to the second link block
It is close, so that dynamic sliding rail quickening collapses into and determines in sliding rail, without hindering formed punch close to die cavity.
In conclusion the invention has the following advantages:
1, materials in the tube utilize the disposable extrusion forming of cold extruding technique, therefore the process for eliminating internal-and external diameter Vehicle Processing and kerve,
The procedure of processing of casing is accelerated, while reducing the loss of raw material；
2, discharge mechanism is set, the casing after completion of processing is collected automatically, accelerates production efficiency；
3, it is provided with tension part between the first link block and the second link block, in staking punch decline, tension part pulls first to connect
It is close to the second link block to connect block, so that dynamic sliding rail quickening collapses into and determines in sliding rail, without hindering formed punch close to die cavity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that casing and steering column are used cooperatively state；
Fig. 2 is the enlarged structure schematic diagram in Fig. 1 at A；
Fig. 3 is the schematic diagram of the section structure of casing；
Fig. 4 is the structural schematic diagram of hydraulic press of the invention；
Fig. 5 is the enlarged structure schematic diagram in Fig. 4 at B；
Fig. 6 is the structural schematic diagram for determining sliding slot Yu dynamic sliding slot of the invention；
Fig. 7 is the structural schematic diagram of ejection cylinder of the invention, magnet block present position.
Appended drawing reference: 1, inserting paragraph；2, section is adjusted；3, oblique section is adjusted；4, link slot；5, steering wheel；6, steering column；7, even
Narrow bars；8, hydraulic press；9, top plate；10, bottom plate；11, hydraulic cylinder；12, lower mold；13, guide rod；14, guide plate；15, formed punch；
16, upper mold segment；17, lower mold segment；18, press strip；19, chamfering；20, determine sliding rail；21, sliding rail is moved；22, guide groove；23, the first connection
Block；24, the second link block；25, tension spring；26, elastic string；27, magnet block；28, cylinder is ejected；29, casing.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
As shown in figure 4, be a kind of steering post jacket pipe manufacturing method disclosed by the invention, including following procedure of processing:
Step 1: steel pipe is cut according to target size and obtains materials in the tube by blanking；
Step 2: materials in the tube are immersed in 70-90 degrees Celsius of temperature of lubricant 20-40 seconds by saponification process, and lubricant is industry
Soap, which is dissolved in hot water, to be obtained；In materials in the tube after being taken out in lubricant, using wind cooling temperature lowering is carried out, so that the surface of materials in the tube is quick
The dry saponification film for forming one layer.
Step 3: cold extrusion shaped；
Step 4: materials in the tube both ends right in the face；
Step 5: completing the process, and obtains casing 29.
As shown in Figure 4,5, wherein the cold extrusion in step 3 needs to carry out using hydraulic press 8, and hydraulic press 8 includes top plate 9
And bottom plate 10, it is fixed with hydraulic cylinder 11 on top plate 9, lower mold 12 is fixed on bottom plate 10, bottom plate 10 passes through with top plate 9
The guide rod 13 being arranged in 10 four corners of rectangular base plate is attached, and guide plate 14, liquid are also connected on guide rod 13
The piston rod of cylinder pressure 11 is connected with formed punch 15 after passing through guide plate 14.Formed punch 15 includes the upper mold segment 16 being adapted with inserting paragraph 1
And the adaptable lower mold segment 17 with section 2 is adjusted, be formed in lower mold segment 17 with its axial parallel press strip 18, press strip 18 is along week
To distribution, lower mold 12 includes die cavity, and the opening of die cavity is formed with chamfering 19, the shape of die cavity and the outer wall shape of casing 29
It is adapted, after formed punch 15 enters die cavity, formed punch 15 and mould intracavity wall are formed with deformation chamber, and the lower end in die cavity is provided with thimble
(not shown), thimble are connected with lifting drive source.
Molding detailed process is that one end of casing 29 is inserted into die cavity, drives formed punch by control hydraulic cylinder 11
15 enter in materials in the tube, and then materials in the tube are squeezed into die cavity, materials in the tube mobile geodetic deformation and integrally formed set in deformation chamber
Pipe 29, wherein inserting paragraph 1 is located at upper end, adjusts section 2 and is located at lower end.
As shown in Figure 6,7, it is provided with mutually matched discharge mechanism on pedestal and upper mold head, discharge mechanism includes
It is inclined to determine sliding rail 20 and dynamic sliding rail 21.Determining sliding rail 20 is dovetail groove sliding rail, and dynamic sliding rail 21 is telescopic is slidably connected to
The two sides for determining to determine in sliding rail 20 sliding rail 20 are provided with along the guide groove 22 determining 20 length direction of sliding rail and opening up, and it is fixed to move sliding rail 21
It is connected with the first link block 23 for stretching out guide groove 22, the side for determining lower one end of sliding rail 20 is further fixed on the second link block
24, tension part is provided between the first link block 23 and the second link block 24, connector is tension spring 25.
Dynamic sliding rail 21 is connected with elastic string 26, and one end of elastic string 26 and the piston rod of hydraulic cylinder 11 are close to dynamic sliding rail 21 1
End connection, the other end of elastic string 26 are connect with the inside edge of the lower one end of dynamic sliding rail 21.
When the piston rod of hydraulic cylinder 11 is in eminence, dynamic sliding rail 21 is in elongation state, moves one end of sliding rail 21 at this time
Positioned at 15 lower section of formed punch, and tension spring 25 is in tensional state.When formed punch 15 is in lowest part, dynamic sliding rail 21, which is in shrink in, determines sliding rail
State in 20.It is embedded with magnet block 27 in the upper mold segment 16 of formed punch 15, ejection gas is installed in the piston rod of hydraulic cylinder 11
Cylinder 28, the piston rod for ejecting cylinder 28 is parallel with the piston rod of hydraulic cylinder 11, piston rod and the formed punch 15 of ejection cylinder 28 it is upper
The distance between mold segment 16 is less than the thickness of 29 inserting paragraph 1 of casing.
After casing 29 forms in die cavity, formed punch 15 leaves die cavity, while thimble ejects one end of casing 29
Die cavity, casing 29 are still socketed in outside formed punch 15 because of the attraction by magnet block 27, are risen in the piston rod of hydraulic cylinder 11
When can drive dynamic sliding rail 21 from determining to stretch out in sliding rail 20 by elastic string 26, and dynamic higher one end of sliding rail 21 is made to be located at punching
First 15 lower section can will be socketed under the top of the casing on formed punch 15 29 by the piston rod elongation of driving ejection cylinder 28 at this time
It falls on dynamic sliding rail 21, then slides to determining sliding rail 20 and exist, place container processing ready to receive determining one end that sliding rail 20 is told somebody what one's real intentions are
The casing 29 finished.
In staking punch decline, tension part pulls the first link block 23 close to the second link block 24, so that dynamic slide
The quickening of rail 21, which collapses into, to be determined in sliding rail 20, without hindering formed punch 15 close to die cavity.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of steering post jacket pipe manufacturing method, it is characterized in that: including following procedure of processing:
Step 1: steel pipe is cut according to target size and obtains materials in the tube by blanking；
Step 2: saponification process；
Step 3: cold extrusion shaped；
Step 4: materials in the tube both ends right in the face；
Step 5: completing the process, and obtains casing (29).
2. a kind of steering post jacket pipe manufacturing method according to claim 1, it is characterized in that: the saponification process in step 2,
To be immersed in materials in the tube in 70-90 degrees Celsius of temperature of lubricant 20-40 seconds, the lubricant is that industrial soap is dissolved in hot water
It obtains.
3. a kind of steering post jacket pipe manufacturing method according to claim 1, it is characterized in that: the materials in the tube take from lubricant
After out, progress wind cooling temperature lowering is utilized.
4. a kind of steering post jacket pipe manufacturing method according to claim 3, it is characterized in that: the cold extrusion in step 3 needs
It is carried out using hydraulic press (8), the hydraulic press (8) includes the lower mold (12) on formed punch (15) and hydraulic press (8) pedestal, institute
The lower mold segment (17) that formed punch (15) includes the upper mold segment (16) being adapted with inserting paragraph (1) and is adapted with adjusting section (2) is stated,
The press strip (18) parallel with its axial direction is provided on the lower mold segment (17), press strip (18) is circumferentially distributed, the lower mold
It (12) include die cavity, the shape of the die cavity and the outer wall shape of casing (29) are adapted, after the formed punch (15) enters die cavity,
Formed punch (15) and mould intracavity wall are formed with deformation chamber, and the lower end in the die cavity is provided with thimble.
5. a kind of steering post jacket pipe manufacturing method according to claim 4, it is characterized in that: the opening of the die cavity is arranged
There are chamfering (19).
6. a kind of steering post jacket pipe manufacturing method according to claim 5, it is characterized in that: the pedestal and upper mold head
On be provided with mutually matched discharge mechanism, the discharge mechanism includes inclined determining sliding rail (20) and dynamic sliding rail (21), institute
It states telescopic be slidably connected to of sliding rail (21) to determine sliding rail (20), the dynamic sliding rail (21) is connected with elastic string (26), described
Elastic string (26) is connect with the piston rod of the hydraulic cylinder (11) on hydraulic press (8), when the piston rod is in eminence, the dynamic cunning
Rail (21) is in elongation state, and the one end for moving sliding rail (21) at this time is located at below formed punch (15), and the formed punch (15) is in minimum
When place, the dynamic sliding rail (21) is in and shrinks in the state determined in sliding rail (20), is embedded with magnet block (27) on the formed punch (15),
Ejection cylinder (28), the piston rod and hydraulic cylinder of ejection cylinder (28) are provided in the piston rod of the hydraulic cylinder (11)
(11) piston rod is parallel, and the distance between the piston rod for ejecting cylinder (28) and the upper mold segment (16) of formed punch (15) are less than
The thickness of casing (29) inserting paragraph (1).
7. a kind of steering post jacket pipe manufacturing method according to claim 6, it is characterized in that: the elastic string (26) with it is hydraulic
The piston rod of cylinder (11) is connected close to the side of dynamic sliding rail (21), described to determine sliding rail (20) lower one end and elastic string (26) phase
Even.
8. a kind of steering post jacket pipe manufacturing method according to claim 7, it is characterized in that: determining the two sides setting of sliding rail (20)
Have along the guide groove (22) for determining the setting of sliding rail (20) length direction, the dynamic sliding rail (21) be connected with stretch out guide groove (22) the
One link block (23), the side for determining sliding rail (20) are additionally provided with the second link block (24), first link block (23) with
Second link block is provided with tension part between (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552506.6A CN110270600A (en) | 2019-06-25 | 2019-06-25 | A kind of steering post jacket pipe manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552506.6A CN110270600A (en) | 2019-06-25 | 2019-06-25 | A kind of steering post jacket pipe manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110270600A true CN110270600A (en) | 2019-09-24 |
Family
ID=67961814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910552506.6A Pending CN110270600A (en) | 2019-06-25 | 2019-06-25 | A kind of steering post jacket pipe manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110270600A (en) |
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|---|---|---|---|---|
| CN2885442Y (en) * | 2006-02-15 | 2007-04-04 | 北京机电研究所 | Axle sleeve extruding die |
| CN102513792A (en) * | 2011-12-28 | 2012-06-27 | 上海久丰汽车零件有限公司 | Cold extrusion forming process for oil pump shaft for automobile |
| CN203076356U (en) * | 2013-01-18 | 2013-07-24 | 福昌精密制品（深圳）有限公司 | Cold extrusion mould |
| CN104148888A (en) * | 2014-06-30 | 2014-11-19 | 宁波惠山汽配制造有限公司 | Process for cold extrusion forming of one-way device spline sleeve |
| CN204396510U (en) * | 2014-12-11 | 2015-06-17 | 重庆正松科技服务有限公司 | Direction column of motorcycle conical pipe processing mold |
| CN107282808A (en) * | 2017-07-11 | 2017-10-24 | 安徽农业大学 | A kind of universal punching compound die automatic fetching device |
| CN207271831U (en) * | 2017-09-21 | 2018-04-27 | 重庆文理学院 | A kind of involute inner spline cold extrusion die |
| CN208131696U (en) * | 2018-02-08 | 2018-11-23 | 江苏海宇机械有限公司 | Splined shaft cold extrusion processing mold |
-
2019
- 2019-06-25 CN CN201910552506.6A patent/CN110270600A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2885442Y (en) * | 2006-02-15 | 2007-04-04 | 北京机电研究所 | Axle sleeve extruding die |
| CN102513792A (en) * | 2011-12-28 | 2012-06-27 | 上海久丰汽车零件有限公司 | Cold extrusion forming process for oil pump shaft for automobile |
| CN203076356U (en) * | 2013-01-18 | 2013-07-24 | 福昌精密制品（深圳）有限公司 | Cold extrusion mould |
| CN104148888A (en) * | 2014-06-30 | 2014-11-19 | 宁波惠山汽配制造有限公司 | Process for cold extrusion forming of one-way device spline sleeve |
| CN204396510U (en) * | 2014-12-11 | 2015-06-17 | 重庆正松科技服务有限公司 | Direction column of motorcycle conical pipe processing mold |
| CN107282808A (en) * | 2017-07-11 | 2017-10-24 | 安徽农业大学 | A kind of universal punching compound die automatic fetching device |
| CN207271831U (en) * | 2017-09-21 | 2018-04-27 | 重庆文理学院 | A kind of involute inner spline cold extrusion die |
| CN208131696U (en) * | 2018-02-08 | 2018-11-23 | 江苏海宇机械有限公司 | Splined shaft cold extrusion processing mold |
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