CN105945521B - A kind of square axle sleeve with square hole and its processing method and application - Google Patents
A kind of square axle sleeve with square hole and its processing method and application Download PDFInfo
- Publication number
- CN105945521B CN105945521B CN201610389991.6A CN201610389991A CN105945521B CN 105945521 B CN105945521 B CN 105945521B CN 201610389991 A CN201610389991 A CN 201610389991A CN 105945521 B CN105945521 B CN 105945521B
- Authority
- CN
- China
- Prior art keywords
- square
- axle sleeve
- cold
- square hole
- heading
- 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.)
- Expired - Fee Related
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 25
- 238000005755 formation reaction Methods 0.000 claims description 25
- 238000001125 extrusion Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 17
- 230000001105 regulatory Effects 0.000 description 11
- 239000011265 semifinished product Substances 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000008358 core component Substances 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 210000001161 Embryo, Mammalian Anatomy 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 230000000051 modifying Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
Abstract
The invention discloses a kind of square axle sleeve and its processing method with square hole, processing method includes following process: (a) blanking: the wire rod rolled product got ready is placed on feeder equipment, and wire rod rolled product is sent into blanking in cold headers by feeder equipment；(b) square axle sleeve is processed by several times: selecting the direct cold-heading molding of multistage cold former, three width processing molds are configured in cold headers, are squeezed by cold-heading three times, are directly processed into the square axle sleeve with square hole, in addition, the invention also discloses the applications of the square axle sleeve with square hole.The present invention uses wire rod rolled product, steel cold-heading is directly squeezed punch forming by cold headers, utilization rate of raw materials is high, reduction material loss can be reached, improving production efficiency reduces the excellent effects such as turnover waste, the present invention is integrally machined simplified processing technology using cold headers, improves processing efficiency.
Description
Technical field
The invention belongs to the processing technique field of metal parts, it is specifically related to a kind of square axle sleeve with square hole and its adds
Work methods and applications.
Background technique
With the development of the automobile industry, technical requirements such as bearing strength, technique knot of the main engine plants to angle regulating device for seat of vehicle
Structure, product quality and production cost etc. require higher and higher.Domestic major angle regulating device for seat of vehicle enterprise all accords in research and development
Close the angle adjustor core component of technical requirements.
The square axle sleeve that angle regulating device for seat of vehicle is used is as an important core component comprising square axle sleeve ontology,
Square opening and prism is in axial direction opened up in square axle sleeve ontology, in the prior art, the traditional diamond-making technique master of the square axle sleeve
Have following several:
(1) it is directly fabricated by the tubing with center square hole, which can reduce machining center axis hole
The step of, but the square axle sleeve structural strength of processing method manufacture is low；
(2) engine lathe processing squarely axle sleeve is first used by metal bar (wire rod rolled product), then to the side processed
Shape shaft sleeve semi-finished product carries out drilling and reaming with wire cutting, but the technique production cost is higher, and labor intensity of workers is big, material
Waste is serious, complex process and not easy to control, and the scope of application is small, is unable to satisfy the demand for development of current enterprise；
(3) cold headers and linear cutter square axle sleeve are used, comprising the following steps: S1: by the wire rod rolled product got ready (gold
Belong to bar) it is placed on feeder equipment, wire rod rolled product is sent into blanking in cold headers by feeder equipment；S2: by wire rod rolled product (gold
Belong to bar) first with cold headers cold-heading at cylindrical body；S3: cold headers cold-heading circular through hole is used on the cylindrical body that S2 is processed；S4:
Then square through hole is processed into get the square axle sleeve by the circular through hole that wire cutting processes S3；
(4) cold headers and lathe process square axle sleeve are used, comprising the following steps: S1: the wire rod rolled product (metal that will be got ready
Bar) it is placed on feeder equipment, wire rod rolled product is sent into blanking in cold headers by feeder equipment；S2: by wire rod rolled product (metal
Bar) first with cold headers cold-heading at cylindrical body；S3: cold headers cold-heading square through hole is used on the cylindrical body that S2 is processed；S4: so
Squarely is processed to get the square axle sleeve by the cylindrical outer surface that lathe or milling cutter process S2 afterwards.
In method (3) and method (4), some steps in the square axle sleeve step are completed using cold headers, but
It also needs to complete the processing of square axle sleeve during this using technologies such as wire cutting, lathe or milling cutters, and uses line
Cutting, lathe or milling cutter processing are higher to the skill requirement of worker, and long processing time, waste material is more, is easy to cause core component
Precision it is low, the problem of unstable quality, and the entire production technology of the processing method is discontinuous, and production efficiency is low, is processed into
This height.
Currently, such square axle sleeve all also complete is appeared in the newspapers with what cold headers completed the process.
In addition, directly processing axle sleeve embryo material by cold headers has many advantages, such as that quick, stable, precision is high, in standard component
In process, it can be used for opening up circular through hole on circular cylinder, or square through hole is opened up on circular cylinder, or
Person opens up circular through hole on square cylinder, and for opening up square hole on square cylinder, inherently due to plastic deformation
The limitation of property, then have not been reported.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of angle regulating device for seat of vehicle axle sleeves, and are added using cold headers
The process in the prior art of the processing technology of work angle regulating device for seat of vehicle accessory, solution is discontinuous, destroys more, and production efficiency is low,
The high problem of processing cost, in addition, the present invention also provides the applications of the square axle sleeve with square hole.
In order to achieve the above objectives, the invention provides the following technical scheme:
A kind of processing method of the square axle sleeve with square hole, it is characterised in that: including following process:
(a) blanking: the wire rod rolled product got ready is placed on feeder equipment, and wire rod rolled product is sent into cold headers by feeder equipment
Blanking；
(b) square axle sleeve is processed by several times: selecting the direct cold-heading molding of multistage cold former, three width are configured in cold headers and are added
Tool and mould is squeezed by cold-heading three times, is directly processed into the square axle sleeve with square hole.
Further preferably are as follows: cold-heading extrusion process in three times described in process (b) are as follows: b1) first time cold-heading squeezes: cold
The first processing mold is configured in upsetting machine, carries out cold-heading extruding with cold headers, formation length is 5mm-15mm with the rectangular of square hole
Axle sleeve；B2) second of cold-heading squeezes: the second processing mold is configured in cold headers, in first time extrusion forming with square hole
On the basis of square axle sleeve, cold-heading extruding is carried out with cold headers, formation length is the square axle sleeve with square hole of 16mm-24mm；
B3) third time cold-heading squeezes: third processing mold is configured in cold headers, the square shaft with square hole of the extrusion forming at second
On the basis of set, cold-heading extruding is carried out with cold headers, formation length is the square axle sleeve with square hole of 25mm-30mm.
In further preferably are as follows: the process b1), formation length is the square axle sleeve with square hole of 8mm-12mm；It is described
Process b2) in, formation length is the square axle sleeve with square hole of 18mm-22mm；The process b3) in, formation length 26mm-
The square axle sleeve with square hole of 29mm.
In further preferably are as follows: the process b1), formation length is the square axle sleeve with square hole of 10mm；The process
B2 in), formation length is the square axle sleeve with square hole of 20mm；The process b3) in, formation length is 27mm with square hole
Square axle sleeve.
Further preferably are as follows: the wire rod rolled product circuits sequentially fortune by manipulator clamping, the manipulator interval
Row is between process (a) to station (b).
A kind of square axle sleeve with square hole processed according to above-mentioned processing method: the square axle sleeve with square hole includes side
Shape sleeve body and the square hole opened up along square axle sleeve ontology axial direction.
Further preferably are as follows: the length of the square axle sleeve with square hole is 5mm-30mm.
Application of the square axle sleeve with square hole as semi-finished product material in angle regulating device for seat of vehicle axle sleeve process.
Further preferably are as follows: the angle regulating device for seat of vehicle axle sleeve includes sleeve body, the outer surface of the sleeve body
Circumferential direction be equipped with positioning convex shoulder and coordination convex shoulder, and the positioning convex shoulder and be coordinated convex shoulder along the sleeve body
Into a ladder, the sleeve body is in axial direction provided with axis hole to axial direction, the axis hole be it is rectangular, the positioning convex shoulder is
It is rectangular.
The beneficial effects of the present invention are:
A kind of processing technology of the square axle sleeve with square hole of the present invention is compared with existing processing technology, using disk round steel
Steel cold-heading is directly squeezed punch forming by cold headers by material, and utilization rate of raw materials is high, can reach reduction material loss, mention
Production efficiency is risen, excellent effects, the present invention such as reduction turnover waste are integrally machined simplified processing technology using cold headers, improve and add
Work efficiency rate.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is the process flow chart of the processing method of the square axle sleeve of the invention with square hole；
Fig. 2 is the positive structure diagram of the square axle sleeve of the invention with square hole；
Fig. 3 is the present invention looks up structural representation of the square axle sleeve of the invention with square hole；
Fig. 4 is the square axle sleeve of the invention with square hole as semi-finished product material and reprocesses molding angle regulating device for seat of vehicle axle sleeve
Positive structure diagram；
Fig. 5 is the square axle sleeve of the invention with square hole as semi-finished product material and reprocesses molding angle regulating device for seat of vehicle axle sleeve
Present invention looks up structural representation.
Specific embodiment
Below in conjunction with attached drawing, a preferred embodiment of the present invention will be described in detail.
As shown in Figure 1, a kind of processing method of the square axle sleeve with square hole, including following process: from wire rod rolled product a, warp
Crossing b1, b2, b3 are made after cold-heading squeezes three times, specific as follows:
(a) blanking: the wire rod rolled product got ready is placed on feeder equipment, and wire rod rolled product is sent into cold headers by feeder equipment
Blanking；
(b) square axle sleeve is processed by several times: selecting the direct cold-heading molding of multistage cold former, three width are configured in cold headers and are added
Tool and mould is squeezed by cold-heading three times, is directly processed into the square axle sleeve with square hole.
Turnery processing can also be carried out by the square axle sleeve product to after molding with square hole as needed.
Cold-heading extrusion process in three times described in process (b) are as follows: b1) first time cold-heading squeezes: the is configured in cold headers
One processing mold carries out cold-heading extruding with cold headers, and formation length is the square axle sleeve with square hole of 5mm-15mm；B2) second
Secondary cold-heading squeezes: the second processing mold is configured in cold headers, in the base of the square axle sleeve with square hole of first time extrusion forming
On plinth, cold-heading extruding is carried out with cold headers, formation length is the square axle sleeve with square hole of 16mm-24mm；B3) third time cold-heading
It squeezes: configuring third processing mold in cold headers, on the basis of the square axle sleeve with square hole of extrusion forming for the second time, use
Cold headers carry out cold-heading extruding, and formation length is the square axle sleeve with square hole of 25mm-30mm.
The type of the steel of the length and selection for the square axle sleeve with square hole processed as needed, described in process (b)
Cold-heading extrusion process is further preferred in three times are as follows: b1) first time cold-heading extruding: the first processing mold is configured in cold headers,
Cold-heading extruding is carried out with cold headers, formation length is the square axle sleeve with square hole of 8mm-12mm；B2) second of cold-heading squeezes:
The second processing mold is configured in cold headers, on the basis of the square axle sleeve with square hole of first time extrusion forming, uses cold-heading
Machine carries out cold-heading extruding, and formation length is the square axle sleeve with square hole of 18mm-22mm；B3) third time cold-heading squeezes: in cold-heading
Third processing mold is configured in machine, on the basis of the square axle sleeve with square hole of extrusion forming for the second time, is carried out with cold headers
Cold-heading squeezes, and formation length is the square axle sleeve with square hole of 26mm-29mm.
Process (a)-process (b) is integrally machined completion by cold headers, in the whole process of square axle sleeve, disk circle
Steel in each process by manipulator clamping, manipulator interval circuit sequentially run on process (a) to station (b) it
Between, it is automatically finished the processing of the entire process of the square axle sleeve with square hole.
According to the square axle sleeve with square hole that above-mentioned processing method is processed, as shown in Figures 2 and 3 comprising square axle sleeve
Ontology 1 and the square hole 4 opened up along 1 axial direction of square axle sleeve ontology.
In the specific use process, according to the length of the square axle sleeve with square hole, can select carry out a cold-heading or
Person's cold-heading twice can be primary using cold headers when being such as not more than 15mm for the length of the length of the square axle sleeve with square hole
Extrusion forming is made, and can also be squeezed using multistage cold former by cold-heading twice, form 5mm-10mm length for the first time
Square axle sleeve with square hole, again cold-heading extrusion forming；
Length with the square axle sleeve with square hole of above-mentioned processing method machine-shaping is 5mm-30mm.
The answering in angle regulating device for seat of vehicle axle sleeve process using the square axle sleeve with square hole as semi-finished product material below
For, it is specifically described the process of the square axle sleeve of the invention with square hole, as shown in Figure 4 and Figure 5, the automotive seat angle modulation
Device axle sleeve includes sleeve body 1, and it is rectangular positioning convex shoulder 2 that shape is equipped in the circumferential direction of the outer surface of sleeve body 1
With the rectangular coordination convex shoulder 3 of chamfering, and the positioning convex shoulder 2 and coordination convex shoulder 3 along sleeve body 1 axial direction into a ladder, axle sleeve sheet
Body 1 is in axial direction provided with square opening and prism 4, and the positioning convex shoulder 2 be it is rectangular, which is 27mm, and along the axis
The length for covering the square opening and prism of the axial direction of ontology is 27mm, specific processing step are as follows:
(a) blanking: the wire rod rolled product got ready is placed on feeder equipment, and wire rod rolled product is sent into cold headers by feeder equipment
Blanking；
(b) square axle sleeve is processed by several times: selecting the direct cold-heading molding of multistage cold former, three width are configured in cold headers and are added
Tool and mould is squeezed, b1 by cold-heading three times) first time cold-heading extruding: the first processing mold is configured in cold headers, uses cold headers
Cold-heading extruding is carried out, formation length is the square axle sleeve with square hole of 10mm；B2) second of cold-heading squeezes: matching in cold headers
The second processing mold is set, on the basis of the square axle sleeve with square hole of first time extrusion forming, cold-heading is carried out with cold headers and squeezes
Pressure, formation length are the square axle sleeve with square hole of 20mm；B3) third time cold-heading squeezes: third processing is configured in cold headers
Mold carries out cold-heading extruding, formation length with cold headers on the basis of the square axle sleeve with square hole of extrusion forming for the second time
For the square axle sleeve with square hole of 27mm.
(c) shaping: using in process (b) by the good square axle sleeve with square hole of cold-heading extrusion process three times as semi-finished product
Material, carries out being finish-machined to angle regulating device for seat of vehicle axle sleeve with the outer surface of speed lathe square shaped axle sleeve.
More previous processing method, the square axle sleeve with square hole processed using processing method of the invention are had as follows
Effect:
(1) after cold heading technique, the tensile strength and hardness of axle sleeve are remarkably reinforced, and mechanical performance and drawing process obtain obviously
Improve, and the precision of axle sleeve greatly improves, stability also greatly enhances.
(2) production efficiency of 3-5 worker is 2000/day in the past, using can achieve 1 people 20000 after this technique
A/day, substantially increases production efficiency.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (4)
1. a kind of processing method of the square axle sleeve with square hole, it is characterised in that: including following process:
(a) blanking: the wire rod rolled product got ready is placed on feeder equipment, under wire rod rolled product is sent into cold headers by feeder equipment
Material；
(b) square axle sleeve is processed by several times: selecting the direct cold-heading molding of multistage cold former, three secondary processing moulds are configured in cold headers
Tool is squeezed by cold-heading three times, is directly processed into the square axle sleeve with square hole, and the cold-heading three times is squeezed, specifically included: b1)
First time cold-heading squeezes: configuring the first processing mold in cold headers, carries out cold-heading extruding, formation length 5mm- with cold headers
The square axle sleeve with square hole of 15mm；B2) second of cold-heading squeezes: the second processing mold is configured in cold headers, for the first time
On the basis of the square axle sleeve with square hole of extrusion forming, cold-heading extruding is carried out with cold headers, formation length is 16mm-24mm's
Square axle sleeve with square hole；B3) third time cold-heading squeezes: configuring third processing mold in cold headers, is squeezed into for the second time
On the basis of the square axle sleeve with square hole of type, cold-heading extruding, the band square hole that formation length is 25mm-30mm are carried out with cold headers
Square axle sleeve.
2. the processing method of the square axle sleeve with square hole according to claim 1, it is characterised in that: the process b1) in, shape
The square axle sleeve with square hole for being 8mm-12mm at length；The process b2) in, formation length is 18mm-22mm with square hole
Square axle sleeve；The process b3) in, formation length is the square axle sleeve with square hole of 26mm-29mm.
3. the processing method of the square axle sleeve with square hole according to claim 2, it is characterised in that: the process b1) in, shape
The square axle sleeve with square hole for being 10mm at length；The process b2) in, formation length is the square shaft with square hole of 20mm
Set；The process b3) in, formation length is the square axle sleeve with square hole of 27mm.
4. the processing method of the square axle sleeve according to claim 1 with square hole, it is characterised in that: the wire rod rolled product
By manipulator clamping, the manipulator interval, which circuits sequentially, runs on process (a) between station (b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610389991.6A CN105945521B (en) | 2016-06-03 | 2016-06-03 | A kind of square axle sleeve with square hole and its processing method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610389991.6A CN105945521B (en) | 2016-06-03 | 2016-06-03 | A kind of square axle sleeve with square hole and its processing method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105945521A CN105945521A (en) | 2016-09-21 |
| CN105945521B true CN105945521B (en) | 2018-12-11 |
Family
ID=56907698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610389991.6A Expired - Fee Related CN105945521B (en) | 2016-06-03 | 2016-06-03 | A kind of square axle sleeve with square hole and its processing method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105945521B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271472A (en) * | 2016-08-27 | 2017-01-04 | 河南森源电气股份有限公司 | A kind of processing method of on-load switch axle |
| CN108031906A (en) * | 2017-11-30 | 2018-05-15 | 雄邦压铸（南通）有限公司 | One kind processing square hole method |
| CN111085824A (en) * | 2019-12-21 | 2020-05-01 | 江苏骏茂新材料科技有限公司 | Machining method of wear-resistant and high-temperature-resistant nickel-based alloy shaft sleeve |
| CN111250934A (en) * | 2020-03-04 | 2020-06-09 | 平湖永鑫五金制品股份有限公司 | Processing technology of hinge shaft in iron door hinge |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201687832U (en) * | 2010-05-13 | 2010-12-29 | 湖州锐狮标准件制造有限公司 | Abnormity nut |
| CN202896335U (en) * | 2012-12-03 | 2013-04-24 | 浙江美力科技股份有限公司 | Synchronously-unlocked angle adjusters for car seat |
| CN104588987A (en) * | 2014-12-01 | 2015-05-06 | 宁波安拓实业有限公司 | High-low screw work piece manufacturing technique |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618422A (en) * | 2009-07-17 | 2010-01-06 | 宁波安拓实业有限公司 | Manufacturing method of internal jacket |
| CN101869960A (en) * | 2010-05-13 | 2010-10-27 | 上海秋乐实业有限公司 | Bush processing technology |
| CN201799474U (en) * | 2010-09-09 | 2011-04-20 | 重庆创精温锻成型有限公司 | Extrusion die of axial sleeve quadrate hole |
| CN103691874B (en) * | 2013-12-11 | 2016-01-20 | 中国航空工业标准件制造有限责任公司 | A kind of thin-wall nut manufacturing process |
| CN103846628B (en) * | 2014-03-17 | 2016-08-31 | 宁波固远管件有限公司 | A kind of cold-heading sleeve processing technique |
| CN205677979U (en) * | 2016-06-03 | 2016-11-09 | 重庆元朋标准件有限公司 | A kind of axle sleeve for angle regulating device for seat of vehicle |
-
2016
- 2016-06-03 CN CN201610389991.6A patent/CN105945521B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201687832U (en) * | 2010-05-13 | 2010-12-29 | 湖州锐狮标准件制造有限公司 | Abnormity nut |
| CN202896335U (en) * | 2012-12-03 | 2013-04-24 | 浙江美力科技股份有限公司 | Synchronously-unlocked angle adjusters for car seat |
| CN104588987A (en) * | 2014-12-01 | 2015-05-06 | 宁波安拓实业有限公司 | High-low screw work piece manufacturing technique |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105945521A (en) | 2016-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105945521B (en) | A kind of square axle sleeve with square hole and its processing method and application | |
| CN203356523U (en) | Manufacturing device for flange nut through cold heading | |
| CN109366109A (en) | Front of the car connecting bushing processing technology | |
| CN102152063A (en) | Process for manufacturing steel bundle terminal blank | |
| CN104209702A (en) | Cold-heading device for irregular nut and production technique of cold-heading device | |
| CN105619024A (en) | Manufacturing method for stainless steel valve element | |
| CN103934638A (en) | Precision external spline pipe forming method | |
| CN101172327A (en) | Anchor clipper through hole type workblank cold pressing technique | |
| CN203508906U (en) | Multi-station continuous hot-forging die set for half-axle gears of driving axles | |
| CN101564813B (en) | Process for machining cold-forging plunger latch head | |
| CN102357627B (en) | Method for machining valve spring retainer by continuous cold heading once near net shape forming | |
| CN110102975A (en) | A kind of middle vehicle body connecting bushing processing technology | |
| CN110732843A (en) | Process for generating faucet quick-opening valve bodies | |
| JP2016219392A (en) | Cold-press forming method of power terminal and power terminal of cold-press forming | |
| CN203304887U (en) | Gear ring blank molding equipment for flywheel assembly of automobile | |
| CN104801648A (en) | Motor gear shaft cold heading forming process | |
| CN205032637U (en) | Outer flower tooth flange nut cold -heading device | |
| CN102211268A (en) | Manufacture process of automobile generator finish-forged claw pole capable of reducing noise | |
| CN108161352A (en) | The production method of copper piece | |
| CN101579799A (en) | Method for manufacturing deep-groove U-shaped iron for loudhailer | |
| CN209935740U (en) | Cold forming multi-station die for inner square sleeve nut | |
| CN106346203B (en) | The production method of neck bush skeleton | |
| KR20080107643A (en) | Making method of cylinder type parts | |
| CN105598314B (en) | It is a kind of without the fiery welding Sheet Metal Forming Technology of metal circular tube locking ring | |
| CN203979082U (en) | Bolt bush assembly parts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20200603 |