CN105057534A - Forming device of lengthening pull rod - Google Patents
Forming device of lengthening pull rod Download PDFInfo
- Publication number
- CN105057534A CN105057534A CN201510476329.XA CN201510476329A CN105057534A CN 105057534 A CN105057534 A CN 105057534A CN 201510476329 A CN201510476329 A CN 201510476329A CN 105057534 A CN105057534 A CN 105057534A
- Authority
- CN
- China
- Prior art keywords
- hangers
- pier
- pull rod
- resistive heater
- forming die
- 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.)
- Granted
Links
Abstract
The invention relates to a forming device of a lengthening pull rod. The forming device comprises a clamp used for fixing a blank, wherein pier head forming molds, heating resistance wires and hanging lug forming molds are arranged at the left side and/or the right side of the clamp; the pier head forming molds, the heating resistance wires and the hanging lug forming molds can move along the left and right directions; paths of the pier head forming molds, the heating resistance wires and the hanging lug forming molds are provided with heating positions, pier head forming positions and hanging lug forming positions; when the forming device is used, the pier head forming molds, the heating resistance wires and the hanging lug forming molds are located in the heating positions, the heating resistance wires are corresponding to the end parts of the blank; when the pier head forming molds, the heating resistance wires and the hanging lug forming molds are located in the pier head forming positions, the pier head forming molds form piers at the end parts of the blank; and when the pier head forming molds, the heating resistance wires and the hanging lug forming molds are located in the hanging lug forming positions, the hanging lug forming molds are corresponding to the piers of the end parts of the blank. According to the forming device of the lengthening pull rod, the technical problems that the size error of the lengthening pull rod is large, and the manufacturing procedures are complicated are solved.
Description
Technical field
The present invention relates to a kind of shaped device of extending pull rod, particularly relate to the shaped device of UHV Overhead Transmission Line extending pull rod.
Background technology
Extending pull rod is that one conventional in UHV transmission line connects gold utensil; at present; UHV transmission line forms scale; calculate by a UHV transmission line 1000 kilometers of single loops; article one, UHV transmission line approximately needs extending pull rod 100000 to overlap; especially, in UHV transmission line insulator serial type structure, a large amount of extending pull rods can be applied to.
Extending pull rod mainly comprises the body of rod and is positioned at the hangers at body of rod two ends, and in order to ensure the intensity of extending pull rod, hangers and the body of rod are formed in one and arrange; In prior art, extending pull rod all adopts columniform 35# steel billet material to be integrally processed into, in process, need to heat blank, pier nose and forging and stamping three road manufacturing procedure, owing to not having the shaped device of extending pull rod, therefore adding heating in man-hour, pier nose and forging and stamping needs individually to carry out.Add man-hour, first by blank heating to suitable temperature, again the blank after heating is taken out and is placed in forming die for pier head, a pier nose is gone out respectively at the two ends pier of blank, again the pier nose at blank two ends is forged and pressed respectively, pier nose after forging and stamping forms hangers, namely completes the processing of extending pull rod.
Because heating, pier nose and forging and stamping three process independently carry out, operating personnel need first to be taken out by blank from heating, and then blank is loaded pier in forming die for pier head go out pier nose, again blank is taken out from mould after pier nose completes, reinstall in forging equipment and forge and press, owing to repeatedly taking out and loading blank, operation is very loaded down with trivial details, and production efficiency is lower; Meanwhile, need during blank forging and stamping to ensure that temperature is higher than final forging temperature, if the temperature of blank is lower than final forging temperature, then forges and presses again after needing to reheat blank, just can reach good forging and stamping effect; Because blank is taking out and in loading procedure, temperature can decline rapidly, and be easy to cause blank before carrying out forging and stamping operation, temperature reaches final forging temperature repeatedly, need again to melt down that heating is rear to be forged and pressed, seriously reduce production efficiency.In addition, when carrying out pier nose and forging and stamping to the two ends of blank respectively, the distance between uncontrollable rod end two hangers, the extending pull rod scale error produced is larger, when applying on insulator chain, insulator chain length can be caused inconsistent, and then cause insulator chain discontinuity.
Summary of the invention
The object of this invention is to provide a kind of shaped device of extending pull rod, larger in order to solve extending pull rod scale error in prior art, and heating, pier nose and forging and stamping three process separately carry out respectively when producing, make operation loaded down with trivial details, and then cause blank easily to cool, be unfavorable for the technical problem forged and pressed.
For achieving the above object, the present invention adopts following technical scheme:
The shaped device of extending pull rod, this device comprises the fixture for fixedly mounting extending pull rod blank in left-right direction, left side and/or the right side of fixture are provided with forming die for pier head, resistive heater and hangers mould, forming die for pier head, resistive heater and hangers mould in left-right direction interval are arranged, resistive heater is between forming die for pier head and hangers mould, the forming die for pier head of respective side, resistive heater is relative with hangers mould to be fixedly installed and to be connected with drive unit, forming die for pier head under the driving effect of drive unit, resistive heater and hangers mould can move in left-right direction, forming die for pier head, the mobile route of resistive heater and hangers mould has and adds thermal potential, the shaping position of pier nose and the shaping position of hangers, work as forming die for pier head, when resistive heater and hangers mould are positioned at and add thermal potential, described resistive heater is corresponding with the end of extending pull rod blank, work as forming die for pier head, when resistive heater and hangers mould advance to pier nose shaping position, described forming die for pier head vertically extrolling long draw blank to go out pier nose at extending pull rod end pier, work as forming die for pier head, when resistive heater and hangers mould retreat position shaping to hangers, described hangers mould is corresponding with the pier nose of extending pull rod blank end.
The left and right sides of described fixture is symmetrically arranged with described forming die for pier head, resistive heater and hangers mould.
Described fixture comprises the fixture cover for installing for extension pull bar blank that axis extends in left-right direction.
Described forming die for pier head comprises the first pier nose module that can mutually merge and open, the second pier nose module that arrange face-to-face, two opposite faces of the first pier nose module, the second pier nose module are equipped with pier nose die cavity, described hangers mould comprises the first hangers module that can mutually merge and open, the second hangers module that arrange face-to-face, and two opposite faces of the first hangers module, the second hangers module are provided with hangers die cavity.
First pier nose module is mutually vertical with the direction of the second hangers block motion with the first hangers module with the direction of the second pier nose block motion.
The inner surface of described pier nose die cavity is circular arc.
Described hangers mould is forge die
Described resistive heater is the helical structure that axis extends in left-right direction, and the inside of described resistive heater has the passage for interting for extending pull rod blank.
Advantageous Effects of the present invention is: the present invention arranges the fixture of fixed installation extending pull rod blank, in the side of fixture or both sides, forming die for pier head is set, resistive heater and hangers mould, forming die for pier head, resistive heater and hangers mould arrange forming die for pier head along the bearing of trend interval of extending pull rod blank axis, relative to being fixedly installed and can moving along the bearing of trend of extending pull rod blank axis simultaneously between resistive heater and hangers mould, when forming die for pier head is when the end of extending pull rod, due to forming die for pier head, resistive heater is relative with hangers mould to be fixedly installed, hangers mould and resistive heater can away from the ends of extending pull rod blank, when hangers mould is when the end of extending pull rod blank, forming die for pier head, resistive heater can away from the end of extending pull rod blank, like this, after resistive heater is by the end heat of extending pull rod blank to uniform temperature, as long as twice is moved forming die for pier head, resistive heater and hangers mould, pier nose and forging and stamping process can be completed, and resistive heater can to the end supplementary heating of extending pull rod blank in moving process, prevent the temperature of extending pull rod blank from declining rapidly.
As a further improvement on the present invention, fixture comprises fixture cover, during use extending pull rod blank be installed on fixture cover in, forming die for pier head vertically extrolling long draw blank time, fixture cover can protect extending pull rod blank, prevents its flexural deformation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the state diagram that forming die for pier head in the embodiment of the present invention 1, resistive heater and hangers mould are positioned at when adding thermal potential;
Fig. 3 is state diagram when being in the shaping position of pier nose of forming die for pier head in the embodiment of the present invention 1, resistive heater and hangers mould;
Fig. 4 is state diagram when being positioned at the shaping position of hangers of forming die for pier head in the embodiment of the present invention 1, resistive heater and hangers mould;
In figure: 1, forming die for pier head, 2, resistive heater, 3, hangers mould, 4, fixture cover, 5, extending pull rod blank, 6, pier nose.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
The embodiment 1 of the shaped device of extending pull rod of the present invention, as Figure 1-4, this device comprises base and the fixture for installing fixing extending pull rod blank, fixture comprises the fixture cover 4 installed for extension pull bar blank 5 that axis extends in left-right direction, fixture cover 4 is fixed on base, the left and right sides of fixture is symmetrically arranged with forming die for pier head 1, resistive heater 2 and hangers mould 3, forming die for pier head 1, resistive heater 2 and hangers mould 3 are disposed in left-right direction to move on base and with base guide and coordinate, resistive heater is between forming die for pier head and hangers mould, forming die for pier head 1 is positioned at the outside of hangers mould 3.Forming die for pier head 1, resistive heater 2 and hangers mould 3 are connected with drive unit (as fluid pressure drive device), base is provided with for forming die for pier head 1, the slide rail of resistive heater 2 and hangers mould 3 guiding movement, drive unit can drive forming die for pier head 1, resistive heater 2 and hangers mould 3 guiding movement in left-right direction, forming die for pier head, relatively be fixedly installed between resistive heater and hangers mould, when drive unit drives forming die for pier head, when resistive heater and hangers mould move, the forming die for pier head of the left and right sides, resistive heater and hangers mould synchronizing moving in the opposite direction, the i.e. forming die for pier head of the left and right sides, resistive heater and hangers mould move relatively or contrarily.
In the present embodiment, forming die for pier head 1 comprises the first pier nose module and the second pier nose module that arrange face-to-face along the longitudinal direction, the opposite face of two pier nose modules is provided with pier nose die cavity, the inner surface of pier nose die cavity is circular arc, pier nose die cavity has the circular open corresponding with extending pull rod blank end, the diameter of circular open is not less than the diameter of extending pull rod blank, and the end of extending pull rod blank can penetrate in pier nose die cavity from circular open.During use, the first pier nose module and the second pier nose module merge along the longitudinal direction and open; Hangers mould is forge die, hangers mould comprises the first hangers module and the second hangers module that arrange face-to-face along the vertical direction, the opposite face of two hangers modules is provided with hangers die cavity, and the first hangers module and the second hangers module merge along the vertical direction and open.The merging direction of forming die for pier head 1 is mutually vertical with the merging direction of hangers mould 3, can reasonable utilization space.Resistive heater is the helical structure be made up of a plain conductor spiral winding, helical structure inside has the passage interted for extending pull rod blank 5, in other embodiments, resistive heater can be two sections, two sections of wires are coiled into the relative semicircular structure of opening, two sections of resistive heaters stagger along the circumference of extending pull rod blank, and extending pull rod blank is surrounded by two sections of wires.
The mobile route of forming die for pier head, resistive heater and hangers mould has and adds thermal potential, the shaping position of pier nose and the shaping position of hangers, when forming die for pier head, resistive heater and hangers mould be in add thermal potential time, described resistive heater is corresponding with the end of extending pull rod blank, and opening resistive heater can heat the end of extending pull rod blank; When the forming die for pier head of the left and right sides, resistive heater and hangers mould relatively move to the shaping position of pier nose face-to-face, described forming die for pier head is extrolling long draw blank vertically, can go out pier nose 6 at extending pull rod end pier; When forming die for pier head, resistive heater and hangers mould are opposing move to hangers shaping position time, described hangers mould is corresponding with the pier nose 6 of extending pull rod blank end, and hangers mould merges pier nose forging and stamping are formed hangers.
The present invention operates according to following three steps in use;
Step 1: extending pull rod blank 5 is installed in fixture cover 4, fixture cover 4 is fixedly clamped extending pull rod blank 5, it should be noted that, when mounted, the length that fixture cover 4 is stretched out at the two ends, left and right of extending pull rod blank 5 needs equal, ensures that the two ends, left and right of extending pull rod blank 5 are equal with the distance between resistive heater; Then resistive heater 2 moved to corresponding with the position of extending pull rod blank 5 end and heat; Until the temperature of extending pull rod blank end reaches temperature required, as shown in Figure 2, forming die for pier head of the present invention, resistive heater and hangers mould are positioned at state diagram when adding thermal potential;
Step 2: when the temperature of extending pull rod blank end reach temperature required after, press from both sides the end position place that ambilateral forming die for pier head moves to extending pull rod blank 5, first pier nose module and the second pier nose module of forming die for pier head are in merging phase, extending pull rod blank 5 extend in pier nose die cavity from circular open, the forming die for pier head of the left and right sides continues to move to the shaping position of pier nose towards relative direction, forming die for pier head is extrolling long draw blank 5 vertically, after end heat due to extending pull rod blank 5, be easy to distortion under external force, therefore, when extrolling long draw blank 5 vertically, pier nose 6 can be gone out at end pier, after pier nose is formed, forming die for pier head is opened along the longitudinal direction.Hangers mould 3 was all in open mode before carrying out swaging operation, and when moving left and right, hangers mould can not produce with extending pull rod blank and interfere; As shown in Figure 3, state diagram when forming die for pier head of the present invention, resistive heater and hangers mould are in pier nose shaping position;
Step 3: forming die for pier head retreats, resistive heater synchronously retreats together with hangers mould simultaneously, until hangers mould moves to the shaping position of hangers, hangers mould is corresponding with the pier nose of extending pull rod blank 5 end, the hangers die cavity of hangers mould is mutually corresponding with the pier nose structure of extending pull rod blank 5 end, hangers mould forges and presses the pier nose structure of extending pull rod blank 5 end along the vertical direction, namely whole production process is completed, open fixture cover 4, the extending pull rod processed is taken out from fixture cover, as shown in Figure 4, forming die for pier head of the present invention, resistive heater and hangers mould are positioned at state diagram during the shaping position of hangers.
The present invention all arranges travel switch in the shaping position of pier nose and the shaping position of hangers, and guarantee forming die for pier head, hangers mould can stop when moving to desired location; When forming die for pier head, resistive heater and hangers mould are positioned at the shaping position of hangers, distance between the hangers die cavity of the left and right sides is L, distance between the two ends hangers forged and pressed out is also L, and the distance between its two ends hangers of extending pull rod that guarantee is produced is fixed value.
Fixture cover 4 of the present invention extends along the axis of extending pull rod blank 5, can protect extending pull rod blank 5 like this, avoid extending pull rod blank 5 to occur bending and deformation; In addition, resistive heater is between forming die for pier head and hangers mould, in forming die for pier head fallback procedures, resistive heater, through the pier nose structure of extending pull rod blank 5 end, can supplement temperature for pier nose structure, ensures that the temperature of pier nose structure reaches the temperature range being applicable to forging and stamping, like this, also to the supplementary heating of extending pull rod blank end, can not increase manufacturing procedure, enhance productivity in the process removing forming die for pier head.
In the present embodiment, drive unit adopts fluid pressure drive device, fluid pressure drive device is prior art, be not explained in detail at this, in other embodiments, drive unit can be Vidacare corp or pneumatic actuating device, when adopting Vidacare corp, screw-nut body can be set on base, forming die for pier head, resistive heater and hangers mould are all fixed on nut, leading screw is connected with motor, and when motor drives screw turns, nut drives forming die for pier head, resistive heater and hangers mould to move and moves left and right.
In the present embodiment, the inner surface of pier nose die cavity is circular arc, and the pier nose shape that pier goes out is spherical, and in other embodiments, pier nose die cavity can be circular flat-bottom slot for opening, and the pier nose shape that pier goes out is cylindrical.
In other embodiments, when needs production two ends hangers orthogonal YLP type extending pull rod, only need forming die for pier head, the hangers mould 90-degree rotation by left side or right side, now the merging direction of the forming die for pier head of the left and right sides is mutually vertical, and the forging and stamping direction of the hangers mould of the left and right sides is mutually vertical.When production only has one end to have the connection gold utensil of hangers, the forming die for pier head of side, resistive heater and hangers mould entirety can be removed open or removed.
Claims (8)
1. the shaped device of extending pull rod, it is characterized in that: this device comprises the fixture for fixedly mounting extending pull rod blank in left-right direction, left side and/or the right side of fixture are provided with forming die for pier head, resistive heater and hangers mould, forming die for pier head, resistive heater and hangers mould in left-right direction interval are arranged, resistive heater is between forming die for pier head and hangers mould, the forming die for pier head of respective side, resistive heater is relative with hangers mould to be fixedly installed and to be connected with drive unit, forming die for pier head under the driving effect of drive unit, resistive heater and hangers mould can move in left-right direction, forming die for pier head, the mobile route of resistive heater and hangers mould has and adds thermal potential, the shaping position of pier nose and the shaping position of hangers, work as forming die for pier head, when resistive heater and hangers mould are positioned at and add thermal potential, described resistive heater is corresponding with the end of extending pull rod blank, work as forming die for pier head, when resistive heater and hangers mould advance to pier nose shaping position, described forming die for pier head vertically extrolling long draw blank to go out pier nose at extending pull rod end pier, work as forming die for pier head, when resistive heater and hangers mould retreat position shaping to hangers, described hangers mould is corresponding with the pier nose of extending pull rod blank end.
2. the shaped device of extending pull rod according to claim 1, is characterized in that: the left and right sides of described fixture is symmetrically arranged with described forming die for pier head, resistive heater and hangers mould.
3. the shaped device of extending pull rod according to claim 1, is characterized in that: described fixture comprises the fixture cover for installing for extension pull bar blank that axis extends in left-right direction.
4. the shaped device of the extending pull rod according to claim 1-3 any one, it is characterized in that: described forming die for pier head comprises the first pier nose module that can mutually merge and open, the second pier nose module that arrange face-to-face, two opposite faces of the first pier nose module, the second pier nose module are equipped with pier nose die cavity, described hangers mould comprises the first hangers module that can mutually merge and open, the second hangers module that arrange face-to-face, and two opposite faces of the first hangers module, the second hangers module are provided with hangers die cavity.
5. the shaped device of extending pull rod according to claim 4, is characterized in that: the first pier nose module is mutually vertical with the direction of the second hangers block motion with the first hangers module with the direction of the second pier nose block motion.
6. the shaped device of extending pull rod according to claim 4, is characterized in that: the inner surface of described pier nose die cavity is circular arc.
7. the shaped device of the extending pull rod according to claim 1-3 any one, is characterized in that: described hangers mould is forge die.
8. the shaped device of the extending pull rod according to claim 1-3 any one, it is characterized in that: described resistive heater is the helical structure that axis extends in left-right direction, the inside of described resistive heater has the passage for interting for extending pull rod blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476329.XA CN105057534B (en) | 2015-08-06 | 2015-08-06 | A kind of shaped device of extending pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476329.XA CN105057534B (en) | 2015-08-06 | 2015-08-06 | A kind of shaped device of extending pull rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105057534A true CN105057534A (en) | 2015-11-18 |
| CN105057534B CN105057534B (en) | 2017-06-27 |
Family
ID=54487169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510476329.XA Active CN105057534B (en) | 2015-08-06 | 2015-08-06 | A kind of shaped device of extending pull rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105057534B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567919A (en) * | 2016-02-25 | 2016-05-11 | 芜湖利锋精工科技有限公司 | Synchronous heating equipment of pier heads at two end parts of torsion bar |
| CN111842753A (en) * | 2020-07-23 | 2020-10-30 | 江苏维骏工业设备有限公司 | PC steel bar pier head machine capable of automatically turning materials |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1248433B (en) * | 1963-10-24 | 1967-08-24 | Hasenclever A G Maschf | Electric upsetting machine for rod-shaped blanks |
| RU2056214C1 (en) * | 1995-01-13 | 1996-03-20 | Открытое акционерное общество "ГАЗ" | Method of making rods with lugs on their ends |
| CN101564751A (en) * | 2009-04-28 | 2009-10-28 | 巨力索具股份有限公司 | Technique for forging electric upsetting steel tie rod cap |
| CN102091915A (en) * | 2010-12-31 | 2011-06-15 | 广州花都通用集团有限公司 | Process for producing elevator draw rod |
| CN102166611A (en) * | 2011-01-25 | 2011-08-31 | 南京中盛铁路车辆配件有限公司 | Long bar continuously upsetting device and method for railway wagon brake pull rod |
| CN202461415U (en) * | 2012-03-21 | 2012-10-03 | 十堰振新杰工贸有限公司 | Ends forming device for horizontal stabilizer bar |
| CN204934449U (en) * | 2015-08-06 | 2016-01-06 | 平高集团有限公司 | A kind of shaped device of extending pull rod |
-
2015
- 2015-08-06 CN CN201510476329.XA patent/CN105057534B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1248433B (en) * | 1963-10-24 | 1967-08-24 | Hasenclever A G Maschf | Electric upsetting machine for rod-shaped blanks |
| RU2056214C1 (en) * | 1995-01-13 | 1996-03-20 | Открытое акционерное общество "ГАЗ" | Method of making rods with lugs on their ends |
| CN101564751A (en) * | 2009-04-28 | 2009-10-28 | 巨力索具股份有限公司 | Technique for forging electric upsetting steel tie rod cap |
| CN102091915A (en) * | 2010-12-31 | 2011-06-15 | 广州花都通用集团有限公司 | Process for producing elevator draw rod |
| CN102166611A (en) * | 2011-01-25 | 2011-08-31 | 南京中盛铁路车辆配件有限公司 | Long bar continuously upsetting device and method for railway wagon brake pull rod |
| CN202461415U (en) * | 2012-03-21 | 2012-10-03 | 十堰振新杰工贸有限公司 | Ends forming device for horizontal stabilizer bar |
| CN204934449U (en) * | 2015-08-06 | 2016-01-06 | 平高集团有限公司 | A kind of shaped device of extending pull rod |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567919A (en) * | 2016-02-25 | 2016-05-11 | 芜湖利锋精工科技有限公司 | Synchronous heating equipment of pier heads at two end parts of torsion bar |
| CN111842753A (en) * | 2020-07-23 | 2020-10-30 | 江苏维骏工业设备有限公司 | PC steel bar pier head machine capable of automatically turning materials |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105057534B (en) | 2017-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110808136B (en) | Column type insulator production processing former | |
| CN104874664A (en) | Alloy pipe fitting electromagnetic bulging and flanging synchronous forming device and method | |
| CN105057534A (en) | Forming device of lengthening pull rod | |
| CN111633964A (en) | Forming device and forming method for thermoplastic special-shaped pipe | |
| CN103817186A (en) | Double-cart type pipe-bending machine and bending method | |
| CN204934449U (en) | A kind of shaped device of extending pull rod | |
| CN202155424U (en) | Double-pipe cutting, forming and pipe-bending integration machine | |
| CN103909207A (en) | Vertical adjusting bolt cold upsetting device and cold upsetting process thereof | |
| CN204770000U (en) | Double arc face bumper side pushes away plastic mechanism | |
| CN111842707B (en) | Open-arm type lead bending device | |
| CN101428311B (en) | Bend pipe apparatus | |
| CN104174797A (en) | Servo-type composite die forging system of ultralong pipe head flange | |
| CN203541378U (en) | Stable-current upsetting machine of reinforcing steel bar | |
| CN114082871B (en) | Flat wire forming device and flat wire forming method | |
| CN106345965B (en) | Automatic radial and end extrusion forming system for long-shaft parts and forming method thereof | |
| CN106984660B (en) | Torque arm molding machine and utilization torque arm molding machining torque arm method | |
| CN107931380A (en) | Punching press swan neck system | |
| CN206824407U (en) | Torque arm forming machine | |
| CN203380278U (en) | Rod piece pressing and bending die with threaded female die loose piece | |
| CN203030656U (en) | Reducing pipe expansion drawing forming device | |
| CN105344762A (en) | Three-dimensional forming tooling and forming method for thin-wall steel tube | |
| CN210497792U (en) | Bent pipe forming machine | |
| CN216679602U (en) | Evaporator tube large step machining tool | |
| CN214719618U (en) | Multi-angle cold-bending intelligent pipe bender | |
| CN103817265A (en) | Furnace wire bending process adopting hydraulic cylinder type horizontal driver and bending force sensor |
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 |