CN103192004A - U-shaped bolt bending device - Google Patents
U-shaped bolt bending device Download PDFInfo
- Publication number
- CN103192004A CN103192004A CN2012100134420A CN201210013442A CN103192004A CN 103192004 A CN103192004 A CN 103192004A CN 2012100134420 A CN2012100134420 A CN 2012100134420A CN 201210013442 A CN201210013442 A CN 201210013442A CN 103192004 A CN103192004 A CN 103192004A
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- bolt
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- gathering sill
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- 238000005452 bending Methods 0.000 title claims abstract description 30
- 230000000977 initiatory effect Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000009183 running Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000010923 batch production Methods 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009740 moulding (composite fabrication) Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
A U-shaped bolt bending device comprises a bending platform, a control box, a motor, a speed reducer and a bracket, wherein the control box is placed on one side of a frame and is provided with three control switches, namely a positive button, a negative button and a stop button; the negative button is connected with a limit contact negative switch at the terminal end of a circular ring guide slot through a leading wire; and the stop button is connected with a limit contact stop switch at the initial end of the circular ring guide slot through a leading wire. A resistance wheel and a wire coiling wheel are arranged on an operating platform, a linear stud is fixed between the resistance bolt and the wire coiling wheel, the resistance wheel is enabled to rotate around the center of the wire coiling wheel through a transmission device, when the resistance wheel rotates, the linear stud is extruded to enable the wire coiling wheel to be bent and deformed, and the opening angle of the stud is controlled by a limit switch, so as to solve the problems that during the U-shaped bolt bending process, the lengths of the two sides of the bolt is asymmetrical, the opening angle is not easy to control, the two sides of the bolt are twisted, threads are damaged, and the U-shaped bolts cannot achieve high-precision and small-error large batch production.
Description
Technical field
The present invention relates to hydraulic component and make the field, be specifically related to a kind of U bolt apparatus for bending, be particularly useful for the manufacturing processing of U bolt in the high pressure U pipe clamp.
Background technology
In recent years, because the develop rapidly of industries such as auto industry, pipeline stationary fixture, agricultural machinery product is also increasing to the demand of U bolt, need the kind of U bolt and specification also more and more.Therefore various bolt bending methods and equipment occur in succession, but all can there be some shortcomings in bending apparatus miscellaneous relatively, major defect have following some: (1) two edge lengths is asymmetric; (2) the U bolt angle of dehiscing is uncontrollable; (3) both sides are distorted, and influence bolt strength; (4) screw thread damage, simultaneously, mostly conventional U bolt forming method is to press with the mould machine to add hammer and pound and process, and hammer pounds that not only efficient is low but also labour intensity is big, and dimensional accuracy also is difficult to control, and it is bigger than normal or less than normal easily to cause U bolt to dehisce.Existing U bolt bender generally need be made a simple mold, and make the radius of mold consistent with the radius of U bolt, with mold and forcing press straight screw rod is pressed into U-shaped then, often there is bigger scale error by this method forming U shape bolt, need to knock correction with hammer, therefore, the method only is applicable to small lot processing, and can't guarantee production efficiency, so U bolt bending method and equipment are badly in need of improving.
Summary of the invention
The object of the invention is to provide a kind of U bolt apparatus for bending, arrange anti-the wheel at workbench, thread reels, with the straight line stud be fixed on anti-take turns and thread reels between, by transmission device anti-the wheel around the thread reels center rotated, the anti-when rotation extruding straight line bolt of taking turns makes it around thread reels flexural deformation, and utilize limit switch to control the angle of dehiscing of bolt, asymmetric to solve two edge lengths that run in the U bolt bending process, the angle of dehiscing is wayward, distortion, screw thread damages and can't realize the precision height, the problem that the U bolt that error is little is produced in enormous quantities.
Implementing technical scheme of the present invention is: U bolt apparatus for bending of the present invention is made up of bending platform, control cabinet, motor, decelerator, support five parts.Wherein the bending platform by working plate, thread reels, anti-ly take turns, workpiece fixed mandril, rotation connecting rod form.Described working plate by bolting on frame, which is provided with the annulus gathering sill that U-shaped runs through, is the center of circle with the axis of rotation, is annulus gathering sill external diameter with the runner radius, with be slightly smaller than the rotation length of connecting rod be annulus gathering sill internal diameter, the gathering sill outer rim is carved with angle; Be provided with slide block at annulus gathering sill two ends, the slide block two ends are provided with the slip draw-in groove, agree with annulus gathering sill edge, be provided with trip bolt at the slide block two ends, the slide block inboard is provided with spacing contact switch, placing the switch on the slide block of annulus gathering sill initiating terminal is spacing contact shutdown switch, and placing the switch on the slide block of annulus gathering sill clearing end is spacing contact reversing switch; Described thread reels and anti-wheel rim of taking turns are the arc groove shape, thread reels is fixed in the axis of rotation place of working plate, origination side in its rotation is provided with the workpiece fixed mandril, described workpiece fixed mandril is provided with bar hole, be connected with working plate by bolt, the bolt bottom is fixed on the working plate, and through the bar hole of workpiece fixed mandril, workpiece fixed mandril top is provided with the soft metal groove; The described anti-tangent line opposite side that is positioned at the thread reels feed end of taking turns is connected by bolt with the rotation connecting rod, can slippage in the bar hole of rotation connecting rod.
Described motor links to each other with the input of decelerator by belt driver, and belt driver is made up of driving wheel, driven pulley and driving-belt.
Described decelerator adopts the turbine and worm decelerator, and the output of decelerator is connected with runner by fastening key.
Described runner places the working plate below, and its upper surface wheel rim is connected with the rotation connecting rod by the welding connecting rod.
Described control cabinet places frame one side, be provided with three gauge taps, be respectively forward, reverse and stop button, wherein reversing button links to each other by lead with the spacing contact reversing switch of annulus gathering sill clearing end, and stop button links to each other by lead with the spacing contact shutdown switch of annulus gathering sill initiating terminal.
Implement the present invention and need carry out following steps:
1) determines U bolt model to be processed, select thread reels model and fixing;
2) adjust the workpiece fixed mandril, choose suitable angle and length and fixing;
3) the straight line bolt is placed in the middle of thread reels and anti-the wheel, an end places in the groove of workpiece fixed mandril;
4) adjust anti-wheel location, make workpiece anti-ly take turns, fixing under the location of thread reels and workpiece fixed mandril;
5) fixing anti-the wheel;
6) adjust limit-switch positions, choose angle according to processing request, determine the limit switch slide position and tighten the bolt at slide block two ends fixing;
7) connect power supply, press the forward switch, the U bolt apparatus for bending is started working, motor drives the running of turbine and worm decelerator by belt driver, decelerator drives runner and rotates, rotated by runner driven rotary connecting rod again, thereby drive the anti-extruding straight line bolt of taking turns by the rotation connecting rod, make the straight line bolt along the brake forming of thread reels groove.
8) after the rotation connecting rod touches the spacing contact reversing switch in terminating point place, the rotation connecting rod oppositely returns starting point immediately;
9) after touching spacing contact, starting point place shutdown switch, the U bolt apparatus for bending quits work;
10) take off in type U bolt, another root straight line bolt is placed workbench, by above step operation, can begin the processing of new workpiece.
Enforcement the invention has the beneficial effects as follows:
Production efficiency height, and be applicable to all size model U bolt processing, in enormous quantities or small lot batch manufacture all can, average per minute can be processed 6-10 root U bolt;
Can regulate the angle of dehiscing by demand, accurately distribute two edge lengths, guarantee the both sides symmetry, the precision height efficiently solves the bigger problem of U bolt error.
Because device of the present invention is provided with contact switch, fixed contact switch slide block behind the set angle can automatically return to initiating terminal after reaching crooked required angle, effectively guaranteed the safety of operating personnel and equipment.
Workpiece fixed mandril of the present invention top groove adopts soft metal, has effectively avoided the damage of screw thread.
Thread reels of the present invention, anti-ly take turns, the workpiece fixed mandril is in same plane, its groove center line is in the absolute horizon, has effectively avoided the distortion of bolt, has guaranteed the intensity of bolt.
Description of drawings
Fig. 1 is the present invention's overall structure schematic diagram of son in conjunction with the embodiments;
Fig. 2 is bending platform schematic diagram;
Fig. 3 is bender transmission device schematic diagram;
Fig. 4 is thread reels and the anti-schematic diagram that is in the job initiation state of taking turns;
Fig. 5 is that thread reels revolves and turn 90 degrees schematic diagram;
Fig. 6 is thread reels Rotate 180 degree, U bolt shaping schematic diagram;
Fig. 7 is operation principle schematic diagram of the present invention;
In Fig. 1-Fig. 7: 1, support, 2, the welding connecting rod, 3, controller, 4, annulus gathering sill, 5, the rotation connecting rod, 6, working plate, 7, spacing contact reversing switch, 8, workpiece, 9, the anti-wheel, 10, thread reels, 11, the workpiece fixed mandril, 12, spacing contact shutdown switch, 13, decelerator, 14, driving-belt, 15, motor, 16, driving wheel, 17, driven pulley, 18, runner.
Specific embodiments
Below in conjunction with drawings and the embodiments, the technical scheme to apparatus of the present invention is described in further details:
The present invention is made up of bending platform, control cabinet, motor, decelerator, support five parts.Wherein the bending platform by working plate 6, thread reels 10, anti-ly take turns 9, workpiece fixed mandril 11, rotation connecting rod 5 form.Described working plate 6 by bolting on support 1, which is provided with the annulus gathering sill 4 that U-shaped runs through, is the center of circle with the axis of rotation, is annulus gathering sill 4 external diameters with runner 18 radiuses, be annulus gathering sill 4 internal diameters to be slightly smaller than rotation connecting rod 5 length, annulus gathering sill 4 outer rims are carved with angle; Be provided with slide block at annulus gathering sill 4 two ends, the slide block two ends are provided with the slip draw-in groove, agree with annulus gathering sill 4 edges, be provided with trip bolt at the slide block two ends, the slide block inboard is provided with spacing contact switch, placing the switch on the slide block of annulus gathering sill 4 initiating terminals is spacing contact shutdown switch 12, and placing the switch on the slide block of annulus gathering sill clearing end is spacing contact reversing switch 7; Described thread reels 10 and anti-9 the wheel rim of taking turns are the arc groove shape, thread reels 10 is fixed in the axis of rotation place of working plate 6, origination side in its rotation is provided with workpiece fixed mandril 11, described workpiece fixed mandril 11 is provided with bar hole, be connected with working plate 6 by bolt, the bolt bottom is fixed on the working plate 6, and through the bar hole of workpiece fixed mandril 11, workpiece fixed mandril 11 tops are provided with the soft metal groove; The described anti-9 tangent line opposite sides that are positioned at thread reels 10 feed ends of taking turns are connected by bolt with rotation connecting rod 5, can slippage in the bar hole that rotates connecting rod 5.
Described motor 15 links to each other by the input of belt driver with decelerator 13, and belt driver is made up of driving wheel 16, driven pulley 17 and driving-belt 14.
Described decelerator 13 adopts the turbine and worm decelerator, and the output of decelerator 13 is connected with runner 18 by fastening key.
Described runner 18 places working plate 6 belows, and its upper surface wheel rim is connected with rotation connecting rod 5 by welding connecting rod 2.
Described control cabinet places frame one side, be provided with three gauge taps, be respectively forward, reverse and stop button, wherein the spacing contact reversing switch 7 of reversing button and annulus gathering sill 4 clearing ends links to each other by lead, and the spacing contact shutdown switch of stop button and annulus gathering sill 4 initiating terminals 12 links to each other by lead.
The specific embodiment
1, determines U bolt model to be processed, select the model of thread reels 10 also fixing, adjust workpiece fixed mandril 11, choose suitable angle and length and fixing, the straight line bolt is placed thread reels 10 and anti-the wheel in the middle of 9, and an end places the groove of workpiece fixed mandril 11, adjusts anti-9 positions of taking turns, make workpiece 8 anti-ly take turns 9, fixing under the location of thread reels 10 and workpiece fixed mandril 11, fixingly anti-ly take turns 9.Adjust spacing contact reversing switch 7, shutdown switch 12 positions, spacing contact, choose angle according to processing request, determine the limit switch slide position and tighten the bolt at slide block two ends fixing.
2, connect power supply, press controller 3, the U bolt apparatus for bending is started working, motor 15 drives 13 runnings of turbine and worm decelerator by belt driver 14,17,18, decelerator 13 drives runner 18 and rotates, rotated by runner driven rotary connecting rod 5 again, thereby drive the anti-9 extruding straight line bolts of taking turns by rotation connecting rod 5, make the straight line bolt along thread reels 10 groove brake formings.When rotation connecting rod 5 touches the spacing contact reversing switch 7 in terminating point place, rotate connecting rod 5 and oppositely return starting point immediately, when touching spacing contact, starting point place shutdown switch 12, the U bolt apparatus for bending quits work.Can take off in type U bolt this moment, and another root straight line bolt is placed workbench, by above step operation, can begin the processing of new workpiece.
Claims (6)
1. U bolt apparatus for bending, by the bending platform, control cabinet, motor, decelerator, support five parts are formed, it is characterized in that described bending platform is by working plate, thread reels, the anti-wheel, the workpiece fixed mandril, the rotation connecting rod is formed, described working plate by bolting on frame, which is provided with the annulus gathering sill that U-shaped runs through, be the center of circle with the axis of rotation, be annulus gathering sill external diameter with the runner radius, with be slightly smaller than the rotation length of connecting rod be annulus gathering sill internal diameter, the gathering sill outer rim is carved with angle, be provided with slide block at annulus gathering sill two ends, the slide block two ends are provided with the slip draw-in groove, agree with annulus gathering sill edge, be provided with trip bolt at the slide block two ends, the slide block inboard is provided with spacing contact switch, placing the switch on the slide block of annulus gathering sill initiating terminal is spacing contact shutdown switch, placing the switch on the slide block of annulus gathering sill clearing end is spacing contact reversing switch, described thread reels and anti-wheel rim of taking turns are the arc groove shape, thread reels is fixed in the axis of rotation place of working plate, origination side in its rotation is provided with the workpiece fixed mandril, described workpiece fixed mandril is provided with bar hole, be connected with working plate by bolt, the bolt bottom is fixed on the working plate, bar hole through the workpiece fixed mandril, workpiece fixed mandril top is provided with the soft metal groove, the described anti-tangent line opposite side that is positioned at the thread reels feed end of taking turns, be connected by bolt with the rotation connecting rod, can slippage in the bar hole of rotation connecting rod.
2. a kind of U bolt apparatus for bending according to claim 1 is characterized in that described motor links to each other with the input of decelerator by belt driver, and belt driver is made up of driving wheel, driven pulley and driving-belt.
3. a kind of U bolt apparatus for bending according to claim 1 is characterized in that described decelerator adopts the turbine and worm decelerator, and the output of decelerator is connected with runner by fastening key.
4. a kind of U bolt apparatus for bending according to claim 1 is characterized in that described runner places the working plate below, and its upper surface wheel rim is connected with the rotation connecting rod by the welding connecting rod.
5. a kind of U bolt apparatus for bending according to claim 1, it is characterized in that described control cabinet places frame one side, be provided with three gauge taps, be respectively forward, reverse and stop button, wherein reversing button links to each other by lead with the spacing contact switch of annulus gathering sill clearing end, and stop button links to each other by lead with the spacing contact switch of annulus gathering sill initiating terminal.
6. according to the described a kind of U bolt apparatus for bending of claim 1-5, it is characterized in that the described specific embodiment is:
(1), select the model of thread reels also fixing, adjust the workpiece fixed mandril, choose suitable angle and length and fixing, the straight line bolt is placed thread reels and the anti-centre of taking turns, one end places the groove of workpiece fixed mandril, adjust anti-wheel location, make workpiece anti-ly take turns, fixing under the location of thread reels and workpiece fixed mandril, fixing anti-the wheel.Adjust spacing contact reversing switch, shutdown switch position, spacing contact, choose angle according to processing request, determine the limit switch slide position and tighten the bolt at slide block two ends fixing.
(2), connect power supply, press controller, motor drives the running of turbine and worm decelerator by belt driver, decelerator drives runner and rotates, rotated by runner driven rotary connecting rod again, thereby drive the anti-extruding straight line bolt of taking turns by the rotation connecting rod, make the straight line bolt along the brake forming of thread reels groove.When the rotation connecting rod touches the spacing contact reversing switch in terminating point place, rotate connecting rod and oppositely return starting point immediately, when touching spacing contact, starting point place shutdown switch, the U bolt apparatus for bending quits work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100134420A CN103192004A (en) | 2012-01-10 | 2012-01-10 | U-shaped bolt bending device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100134420A CN103192004A (en) | 2012-01-10 | 2012-01-10 | U-shaped bolt bending device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103192004A true CN103192004A (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100134420A Pending CN103192004A (en) | 2012-01-10 | 2012-01-10 | U-shaped bolt bending device |
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| CN (1) | CN103192004A (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014616A (en) * | 2014-05-15 | 2014-09-03 | 山东济宁如意毛纺织股份有限公司 | Damaged tension piece repairing method and device |
| CN104044128A (en) * | 2014-06-20 | 2014-09-17 | 邢辉 | Auxiliary tool for machining corner of hollow component |
| CN107252857A (en) * | 2017-08-14 | 2017-10-17 | 巨石集团有限公司 | One kind is without silver wire full-automatic numerical control bending equipment |
| CN107470420A (en) * | 2017-09-01 | 2017-12-15 | 广东长盈精密技术有限公司 | U-shaped workpiece bending machine |
| CN107962136A (en) * | 2017-12-26 | 2018-04-27 | 铜陵三佳变压器科技股份有限公司 | A kind of new energy transformer copper wire bending adjustment instrument for arc |
| CN108372218A (en) * | 2018-04-09 | 2018-08-07 | 重庆华瑞标准件制造有限公司 | A kind of U bolt fastener former |
| CN108856565A (en) * | 2018-07-26 | 2018-11-23 | 浙江通达光学有限公司 | A kind of eyeglasses temple arm bending machine |
| CN108941375A (en) * | 2018-08-09 | 2018-12-07 | 野邑自动化科技（苏州）有限公司 | Flat wire crimp |
| CN109244904A (en) * | 2018-09-20 | 2019-01-18 | 国家电网公司 | Apparatus for bending and the fixed elastic adjustment method of conducting wire is straightened in a kind of substation secondary wiring |
| CN109647950A (en) * | 2019-01-31 | 2019-04-19 | 海盐宏达五金制造有限公司 | Apparatus for bending for U-bolt |
| CN109985939A (en) * | 2019-04-30 | 2019-07-09 | 长春工业大学 | A large and complex three-dimensional bending structural member stretch-bending forming device |
| CN110576086A (en) * | 2019-07-30 | 2019-12-17 | 海盐铭宏精工科技有限公司 | u-shaped bolt bending machine |
| CN110681797A (en) * | 2019-10-09 | 2020-01-14 | 国网山东省电力公司新泰市供电公司 | Stay wire manufacturing device and using method |
| CN111816374A (en) * | 2019-03-05 | 2020-10-23 | 福州迈可博电子科技股份有限公司 | High-precision wire bending tool |
| CN113399768A (en) * | 2021-07-30 | 2021-09-17 | 重庆华渝电气集团有限公司 | Rotary cutting tool for wire-electrode cutting parts |
| CN113458520A (en) * | 2021-07-30 | 2021-10-01 | 重庆华渝电气集团有限公司 | Cutting limit structure of rotary cutting tool |
| CN113680924A (en) * | 2021-07-22 | 2021-11-23 | 谢九赛 | Inner core thimble bending mechanism of wheel speed sensor |
| CN114798837A (en) * | 2022-04-21 | 2022-07-29 | 上海电机学院 | High-stability loop chain manufacturing device and method |
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Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014616A (en) * | 2014-05-15 | 2014-09-03 | 山东济宁如意毛纺织股份有限公司 | Damaged tension piece repairing method and device |
| CN104044128A (en) * | 2014-06-20 | 2014-09-17 | 邢辉 | Auxiliary tool for machining corner of hollow component |
| CN104044128B (en) * | 2014-06-20 | 2015-12-02 | 瑞安市鑫海汽车部件有限公司 | A kind of assistance instrument of the turning for hollow part |
| CN107252857B (en) * | 2017-08-14 | 2019-04-19 | 巨石集团有限公司 | A kind of no silver wire full-automatic numerical control bending equipment |
| CN107252857A (en) * | 2017-08-14 | 2017-10-17 | 巨石集团有限公司 | One kind is without silver wire full-automatic numerical control bending equipment |
| CN107470420A (en) * | 2017-09-01 | 2017-12-15 | 广东长盈精密技术有限公司 | U-shaped workpiece bending machine |
| CN107470420B (en) * | 2017-09-01 | 2019-07-23 | 广东长盈精密技术有限公司 | U-shaped workpiece bending machine |
| CN107962136A (en) * | 2017-12-26 | 2018-04-27 | 铜陵三佳变压器科技股份有限公司 | A kind of new energy transformer copper wire bending adjustment instrument for arc |
| CN108372218A (en) * | 2018-04-09 | 2018-08-07 | 重庆华瑞标准件制造有限公司 | A kind of U bolt fastener former |
| CN108856565A (en) * | 2018-07-26 | 2018-11-23 | 浙江通达光学有限公司 | A kind of eyeglasses temple arm bending machine |
| CN108856565B (en) * | 2018-07-26 | 2023-12-01 | 浙江通达光学有限公司 | Glasses leg bending machine |
| CN108941375A (en) * | 2018-08-09 | 2018-12-07 | 野邑自动化科技（苏州）有限公司 | Flat wire crimp |
| CN109244904A (en) * | 2018-09-20 | 2019-01-18 | 国家电网公司 | Apparatus for bending and the fixed elastic adjustment method of conducting wire is straightened in a kind of substation secondary wiring |
| CN109244904B (en) * | 2018-09-20 | 2020-02-11 | 国家电网公司 | Transformer substation secondary wiring straightening and bending device and wire fixing tightness debugging method |
| CN109647950A (en) * | 2019-01-31 | 2019-04-19 | 海盐宏达五金制造有限公司 | Apparatus for bending for U-bolt |
| CN109647950B (en) * | 2019-01-31 | 2020-08-07 | 海盐宏达五金制造有限公司 | Bending device for U-shaped bolt |
| CN111816374A (en) * | 2019-03-05 | 2020-10-23 | 福州迈可博电子科技股份有限公司 | High-precision wire bending tool |
| CN109985939A (en) * | 2019-04-30 | 2019-07-09 | 长春工业大学 | A large and complex three-dimensional bending structural member stretch-bending forming device |
| CN109985939B (en) * | 2019-04-30 | 2024-01-23 | 长春工业大学 | Stretch bending forming device for large complex three-dimensional bending structural member |
| CN110576086A (en) * | 2019-07-30 | 2019-12-17 | 海盐铭宏精工科技有限公司 | u-shaped bolt bending machine |
| CN110576086B (en) * | 2019-07-30 | 2020-08-14 | 海盐铭宏精工科技有限公司 | U-shaped bolt bending machine |
| CN110681797A (en) * | 2019-10-09 | 2020-01-14 | 国网山东省电力公司新泰市供电公司 | Stay wire manufacturing device and using method |
| CN113680924A (en) * | 2021-07-22 | 2021-11-23 | 谢九赛 | Inner core thimble bending mechanism of wheel speed sensor |
| CN113680924B (en) * | 2021-07-22 | 2023-11-03 | 深圳市宏源精密五金有限公司 | Wheel speed sensor inner core thimble bending mechanism |
| CN113399768A (en) * | 2021-07-30 | 2021-09-17 | 重庆华渝电气集团有限公司 | Rotary cutting tool for wire-electrode cutting parts |
| CN113458520A (en) * | 2021-07-30 | 2021-10-01 | 重庆华渝电气集团有限公司 | Cutting limit structure of rotary cutting tool |
| CN113399768B (en) * | 2021-07-30 | 2024-06-04 | 重庆华渝电气集团有限公司 | Rotary cutting tool for wire cutting part |
| CN114798837A (en) * | 2022-04-21 | 2022-07-29 | 上海电机学院 | High-stability loop chain manufacturing device and method |
| CN114798837B (en) * | 2022-04-21 | 2024-09-13 | 上海电机学院 | High-stability loop chain manufacturing device and method |
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Application publication date: 20130710 |