CN107497975A - Conical spring processingequipment - Google Patents
Conical spring processingequipment Download PDFInfo
- Publication number
- CN107497975A CN107497975A CN201710804910.9A CN201710804910A CN107497975A CN 107497975 A CN107497975 A CN 107497975A CN 201710804910 A CN201710804910 A CN 201710804910A CN 107497975 A CN107497975 A CN 107497975A
- Authority
- CN
- China
- Prior art keywords
- drive rod
- plant
- rotating disk
- processing unit
- support base
- 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
- 238000009527 percussion Methods 0.000 claims description 22
- 238000010304 firing Methods 0.000 claims description 13
- 230000035939 shock Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000002950 deficient Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F35/00—Making springs from wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
- B21D31/06—Deforming sheet metal, tubes or profiles by sequential impacts, e.g. hammering, beating, peen forming
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
Abstract
The invention relates to a conical spring processing device, and belongs to the technical field of conical spring processing equipment. This conical spring processingequipment comprises driving motor, carousel, frame, supporting seat, squeeze rolls and impinger: a turntable is arranged on the frame through a bearing seat; a support seat is fixedly arranged on the frame inside the turntable; the middle part of the supporting seat is provided with a workpiece hole; even number of impactors are uniformly distributed on the supporting seat around the workpiece hole; the rotary table is symmetrically provided with extrusion rollers; the extrusion roller is intermittently connected with each impactor in a rolling manner; a driving motor and a speed reducer are arranged on the rack on one side of the turntable; the speed reducer is connected with the turntable through a transmission chain. This conical spring processingequipment, simple structure, convenient to use, manufacturing that can automize produces conical spring, and the intensity of labour who has when having solved manual processing conical spring is big, work efficiency is low and the problem that the rejection rate is high, has satisfied the needs of enterprise's plant use.
Description
Technical field
The present invention relates to a kind of taper spring processing unit (plant), belongs to taper spring technical field of processing equipment.
Background technology
At present in the taper spring used on the market, generally by manually by simple plant equipment, making plus
What work came out.Typically one end of isometrical helical spring is placed on manual press device, the side then manually suppressed
Formula progressively suppresses one end of helical spring tapered, is finally made finished product.Because taper spring is in processing and making process, it is
What the mode manually suppressed was completed, its have labor intensity greatly and ineffective problem, it is impossible to meet enterprise produce
The needs used.And existing manual press device, due to the limitation of reasons in structure, it has finished product percent defective height and error
The problem of big, it is therefore necessary to research and develop a kind of processing unit (plant) can, the processing of the completion taper spring of automation is manual to solve
The problem above having during processing.
The content of the invention
It is an object of the invention to：It is simple in construction, easy to use to provide one kind, to be deposited when solving manual processing taper spring
Some labor intensity is big, operating efficiency is low and the taper spring processing unit (plant) of the high problem of percent defective.
The technical scheme is that：
A kind of taper spring processing unit (plant), it is made up of motor, rotating disk, frame, support base, squeezing roller and ram；
It is characterized in that：Rotating disk is equipped with by bearing block in frame；Support base is fixed with frame inside rotating disk；The middle part of support base
It is provided with workpiece hole；Even number ram is evenly equipped with the support base of workpiece hole surrounding；Symmetry shape is equipped with crowded on described rotating disk
Pressing roller；Squeezing roller is rolled with each ram interval and connected；Motor and reductor are housed in the frame of rotating disk side；Subtract
Fast machine is connected by driving-chain with rotating disk.
Described ram is made up of knocking gear and firing lock；Percussion is provided with the support base of knocking gear tail end
Mechanism；Knocking gear is made up of slide, sliding block, back-moving spring and limited block；Slided and be equipped with by the slide being fixedly mounted with support base
Sliding block；One end of sliding block is fixed with lance, and the other end screw thread of sliding block is provided with limited block；It is provided between limited block and slide
Back-moving spring；Limited block is contradicted with firing lock and connected.
Described firing lock is made up of percussion bolt, drive rod and position-limitting pin；Pass through on the support base of slide tail end
Pin rotation is equipped with drive rod；The middle part screw thread of drive rod is provided with percussion bolt；Fire bolt and contradict connection with limited block；Drive
Lever side is provided with position-limitting pin；Position-limitting pin is contradicted with drive rod interval and connected.
Described percussion bolt is obliquely set.
Described drive rod is in curved arc shape；The outer surface of drive rod rolls with squeezing roller interval and connected.
Described rotating disk is torus, and the lower end of rotating disk is provided with driven gear ring；Driven gear ring is by driving-chain with slowing down
Machine connects.
Two rams being centrosymmetric on described support base are one group, with two ram lances and the circular cone bullet of group
The same spiral coil of spring is corresponding；Each group ram lance is corresponding with each spiral coil of taper spring tapered segment respectively.
The section of described lance is square, and one end termination of lance is provided with shock mouth.
The section of described shock mouth is curved.
Travel switch is housed in the frame of described each squeezing roller side, travel switch electrically connects with motor.
Described ram is 10.
The advantage of the invention is that：
The taper spring processing unit (plant), simple in construction, easy to use, each ram can hit the end that wait diameter spring during work
Hit it is tapered, so as to automation manufacture process cone shaped spring.Thus solve what is had during manual processing taper spring
The problem of labor intensity is big, operating efficiency is low and percent defective is high, meet the needs of enterprise's production and application.
Brief description of the drawings
Fig. 1 is the overlooking the structure diagram of the present invention；
Fig. 2 is the mplifying structure schematic diagram at A in Fig. 1；
Fig. 3 is the structural representation of the knocking gear of the present invention；
Fig. 4 is the main structure diagram of the present invention.
In figure：1st, motor, 2, rotating disk, 3, frame, 4, support base, 5, squeezing roller, 6, workpiece hole, 7, reductor,
8th, driving-chain, 9, slide, 10, sliding block, 11, back-moving spring, 12, limited block, 13, lance, 14, percussion bolt, 15, drive rod,
16th, position-limitting pin, 17, pin, 18, hit mouth, 19, travel switch.
Embodiment
The taper spring processing unit (plant) is by motor 1, rotating disk 2, frame 3, support base 4, squeezing roller 5 and ram structure
Into：Rotating disk 2 is equipped with by bearing block in frame 3；Rotating disk 2 is torus, and the lower end of rotating disk 2 is provided with driven gear ring（In figure not
Depending on）.Motor 1 and reductor 7 are housed in the frame 3 of the side of rotating disk 2；The driving that reductor 7 passes through driving-chain 8 and rotating disk 2
Gear ring connects.Motor 1 can drive rotating disk 2 to rotate clockwise or counterclockwise when working by reductor 7 and driving-chain 8.
Symmetry shape is equipped with squeezing roller 5 on rotating disk 2；Support base 4 is fixed with frame 3 inside the inner ring of rotating disk 2；Support base
4 middle part is provided with workpiece hole 6；The diameter of workpiece hole 6 is corresponding with the diameter of isometrical helical spring to be processed, and when isometrical
After helical spring is placed on workpiece hole 6, its top part to be processed, in the top of workpiece hole 6, the purpose being arranged such exists
In：So that the part to be processed of isometrical helical spring is corresponding with each ram, so as to facilitate each ram in isometrical spiral bullet
The top of spring processes taper.
Travel switch 19 is housed, travel switch 19 electrically connects with motor 1 in the frame 3 of each side of squeezing roller 5.Squeeze
When pressing roller contacts with travel switch 19, signal can be passed to motor 1 by travel switch 19, motor 1 is made phase
It should act.
On the support base 4 of the surrounding of workpiece hole 6 even number ram is evenly equipped with divergent shape；Ram is by knocking gear and hits
Mechanism is sent out to form；Knocking gear is made up of slide 9, sliding block 10, back-moving spring 11 and limited block 12；By being fixedly mounted with support base 4
Slide 9 slide sliding block 10 is housed；One end of sliding block 10 is fixed with lance 13, and the section of lance 13 is square, lance 13
One end termination, which is provided with, hits mouth 18.
The section of shock mouth 18 is curved, hits the arc radian of mouth 18 and the diameter phase with isometrical helical spring spiral coil
It is corresponding.When the purpose being arranged such is so that lance 13 hits the spiral coil of isometrical helical spring by hitting mouth 18, entirely
Isometrical helical spring can be hit by hitting mouth 18, and then increase the impact area of lance 13, make the processing effect of taper spring more
It is good.
The other end of sliding block 10 extends slide 9, and screw thread installation is limited on the termination for the sliding block 10 for extending the outer end of slide 9
Position block 12；Back-moving spring 11 is provided between limited block 12 and slide 9.
Firing lock is provided with the support base 4 of knocking gear tail end, firing lock is by percussion bolt 14, the and of drive rod 15
Position-limitting pin 16 is formed；Rotated on the support base 4 of the tail end of slide 9 by pin 17 and drive rod 15 is housed；Drive rod 15 is in curved arc
Shape.
The outer surface interval of squeezing roller 5 and the drive rod 15 of each ram, which rolls, to be connected；Drive rod 15 is arranged such
Purpose be：When during making the rolling extrusion drive rod 15 of squeezing roller 5, can be around pin in the drive rod 15 of curved arc shape
Nail 17 inwardly rotates, so that the percussion bolt 14 on drive rod 15 extrudes limited block 12 and sliding block 10, makes hitting on sliding block 10
Bar 13 hits isometrical helical spring to be processed.Second, being in the state of rounding off using the outer surface of drive rod 15, make extruding
It is more smooth during 5 rolling extrusion drive rod 15 of roller, and then the mechanical wear of drive rod 15 and squeezing roller 5 is reduced, extend and drive
The service life of lever 15 and squeezing roller 5.
The middle part screw thread of drive rod 15 is provided with percussion bolt 14；Percussion bolt 14 is obliquely set, and fires bolt 14
Contradict and connect with limited block 12.Limited block 12, all the time with the trend moved outside phase, enters under the elastic reaction of back-moving spring 11
And the conflict for making limited block 12 keep certain elasticity with percussion bolt 14 all the time is connected.
The side of drive rod 15 is provided with position-limitting pin 16；Position-limitting pin 16 intermittently contradicts connection with drive rod 15.Due to limit
Position block 12 in the presence of the elastic force of back-moving spring 11 by fire bolt 14 all the time have push out drive rod 15 rotate become
Gesture, after position-limitting pin 16 is set：The amplitude that position-limitting pin 16 is turned out to drive rod 15 is limited, so as to by limited block
12 and the position of sliding block 10 be defined, prevent it in the presence of elastic force, disengaged with slide 9.
The purpose that percussion bolt 14 is threadably mounted on drive rod 15 and obliquely sets percussion bolt 14 is：
When people are deeper by the screw-in depth for firing bolt 14, percussion bolt 14 extrudes sliding block 10 and lance 13 by limited block 12
Degree is also deeper, and lance 13 is also nearer from a distance from workpiece hole 6；Lance 13 hits the journey of isometrical helical spring to be processed
Degree is also bigger；And because percussion bolt 14 is obliquely set, drive rod 15 is driven in the percussion rotation process of bolt 14, is hit
Bolt 14 is sent out by way of sliding and extruding, extrudes limited block 12；When the screw-in depth for firing bolt 14 is deeper, bolt is fired
The impact stroke of 14 slip extruding limited blocks 12 and lance 13 is also longer；Therefore people can fire the rotation of bolt 14 by adjusting
Enter depth, regulation lance 13 hits degree, and percussion bolt 14 screws in deeper, and the stroke that lance 13 hits is longer, squeezes out
The diameter of the spiral coil of spring is with regard to smaller；It is otherwise bigger.
Two rams being centrosymmetric on support base 4 are one group.With the two ram lances 13 and taper spring of group
Same spiral coil it is corresponding；The purpose being arranged such is：So that the two ram lances 13 with group can be when working simultaneously
Same spiral coil is hit in opposite directions, so as to reach the purpose after spiral coil is impacted, radially to diminish；And it also avoid and hit with group two
When hitting the dislocation different spiral coils of shock of device lance 13, because the unilateral stress of spiral coil causes its own elastic force to offset impulsive force problem
Generation.Each group ram lance 13 is corresponding with each spiral coil of taper spring tapered segment respectively.
The optimum number of ram is 10.Before taper spring processing unit (plant) work, each ram percussion is adjusted first
The screw-in depth of bolt 14；Respectively the screw-in depth of each group ram percussion bolt 14 from top to bottom is deepened successively, and is ensured
It is identical with the screw-in depth of group ram percussion bolt 14；The purpose being arranged such is：So that each group from the bottom up is hit
The impact stroke of device lance 13 is increasing；And then and then ensure the taper spring processing unit (plant) by isometrical spiral bullet to be processed
The part processing of spring is tapered.
When the taper spring processing unit (plant) works, it is necessary first to which isometrical helical spring to be processed is placed on into workpiece hole 6
In；Now each group ram is corresponding with each helical layer circle on isometrical helical spring top.
After isometrical helical spring is placed, start motor 1, motor 1 passes through reductor 7 and the band of driving-chain 8
Turn disk 2 rotates counterclockwise；When rotating disk 2 drives each squeezing roller 5 to rotate to when being contacted respectively with corresponding travel switch 19, turn
Disk 2 just rotates 180 °, and now travel switch 19 gives motor 1 one signals；Motor 1 is connected to after signal by subtracting
Fast machine 7 and driving-chain 8 drive rotating disk 2 to rotate clockwise；When rotating disk 2 drives squeezing roller 5 to be clockwise to and travel switch
During 19 contact, rotating disk 2 just resets；Now travel switch 19 gives the signal of motor 1；Motor 1 stops after receiving signal
Only move.
During above-mentioned rotating disk 2 drives each squeezing roller 5 to rotate counterclockwise, each squeezing roller 5 extrudes each group and hit successively
Hit the drive rod 15 of device.After squeezing roller 5 extrudes drive rod 15 and disengaged with drive rod 15, in the elastic force of back-moving spring 11
The lower limited block 12 that passes through of effect resets drive rod 15 outwardly against percussion bolt 14 and drive rod 15.
In the pressurized process of drive rod 15 of each group ram, because each squeezing roller 5 is set in symmetry shape, therefore same group
The lever 15 that ram drives is squeezed simultaneously.Drive rod 15 inwardly turns in the presence of the extruding force of squeezing roller 5 around pin 17
It is dynamic；Limited block 12 and sliding block 10 are extruded by firing bolt 14 in 15 inside rotation process of drive rod, sliding block 10 drives after being pressurized
Lance 13 hits the spiral coil on isometrical helical spring, and same spiral coil is hit by with the opposite of group ram lance 13 simultaneously
Hit compression in backward.
After each squeezing roller 5 extrudes drive rod 15 of each group ram successively, corresponding with each group ram is isometrical
Each helical layer circle of helical spring, receives and once hits, because the impact stroke of each group ram becomes successively from top to bottom
Greatly, therefore isometrical helical spring each helical layer circle corresponding with ram, the degree for the contraction that is pressurized from bottom to top is bigger, is in finally
Existing taper.
After rotating disk 2 drives each squeezing roller 5 to complete to rotate counterclockwise, when being rotated clockwise, each group, which is hit, thinks highly of
The action of spiral coil is hit again, so that the top of isometrical helical spring is in processing that is tapered, and then completing taper spring.Then
Finished product is taken out, changes next isometrical helical spring, you can enters next working cycles.
The taper spring processing unit (plant), simple in construction, easy to use, the manufacture that can be automated processes conical bullet
Spring, solve the problems, such as that the labor intensity that has during manual processing taper spring is big, operating efficiency is low and percent defective is high, meet
The needs of enterprise's production and application.
Claims (9)
1. a kind of taper spring processing unit (plant), it is by motor（1）, rotating disk（2）, frame（3）, support base（4）, squeezing roller
（5）Formed with ram；It is characterized in that：Frame（3）It is upper that rotating disk is equipped with by bearing block（2）；Rotating disk（2）Internal frame
（3）On be fixed with support base（4）；Support base（4）Middle part be provided with workpiece hole（6）；Workpiece hole（6）The support base of surrounding（4）
On be evenly equipped with even number ram；Described rotating disk（2）Upper symmetry shape is equipped with squeezing roller（5）；Squeezing roller（5）With each shock
Device interval rolls connection；Rotating disk（2）The frame of side（3）It is upper that motor is housed（1）And reductor（7）；Reductor（7）Pass through
Driving-chain（8）With rotating disk（2）Connection.
A kind of 2. taper spring processing unit (plant) according to claim 1, it is characterised in that：Described ram is by impact machine
Structure and firing lock are formed；The support base of knocking gear tail end（4）On be provided with firing lock；Knocking gear is by slide（9）, it is sliding
Block（10）, back-moving spring（11）And limited block（12）Form；Support base（4）The upper slide by being fixedly mounted with（9）Slip is equipped with sliding block
（10）；Sliding block（10）One end be fixed with lance（13）, sliding block（10）The other end screw thread limited block is installed（12）；Limited block
（12）With slide（9）Between be provided with back-moving spring（11）；Limited block（12）Contradict and connect with firing lock.
A kind of 3. taper spring processing unit (plant) according to claim 2, it is characterised in that：Described firing lock is by firing
Bolt（14）, drive rod（15）And position-limitting pin（16）Form；Slide（9）The support base of tail end（4）On pass through pin（17）Turn
It is dynamic that drive rod is housed（15）；Drive rod（15）Middle part screw thread percussion bolt is installed（14）；Fire bolt（14）With limited block
（12）Contradict connection；Drive rod（15）Side is provided with position-limitting pin（16）；Position-limitting pin（16）With drive rod（15）Interval is supported
Touch connection.
A kind of 4. taper spring processing unit (plant) according to claim 3, it is characterised in that：Described percussion bolt（14）It is in
Skewed setting；Described drive rod（15）In curved arc shape；Drive rod（15）Outer surface and squeezing roller（5）Interval, which rolls, to be connected
Connect.
A kind of 5. taper spring processing unit (plant) according to claim 1, it is characterised in that：Described rotating disk（2）For annulus
Body, rotating disk（2）Lower end be provided with driven gear ring；Driven gear ring passes through driving-chain（8）With reductor（7）Connection.
A kind of 6. taper spring processing unit (plant) according to claim 2, it is characterised in that：It is in center on described support base
Symmetrical two rams are one group, with two ram lances of group（13）It is corresponding with the same spiral coil of taper spring；Respectively
Group ram lance（13）It is corresponding with each spiral coil of taper spring tapered segment respectively.
A kind of 7. taper spring processing unit (plant) according to claim 6, it is characterised in that：Described lance（13）Section
For square, lance（13）One end termination be provided with shock mouth（18）；Hit mouth（18）Section it is curved.
A kind of 8. taper spring processing unit (plant) according to claim 1, it is characterised in that：Described each squeezing roller（5）
The frame of side（3）It is upper that travel switch is housed（19）, travel switch（19）With motor（1）Electrical connection.
A kind of 9. taper spring processing unit (plant) according to claim 1, it is characterised in that：Described ram is 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710804910.9A CN107497975B (en) | 2017-09-08 | 2017-09-08 | Conical spring processingequipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710804910.9A CN107497975B (en) | 2017-09-08 | 2017-09-08 | Conical spring processingequipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107497975A true CN107497975A (en) | 2017-12-22 |
| CN107497975B CN107497975B (en) | 2024-03-12 |
Family
ID=60695137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710804910.9A Active CN107497975B (en) | 2017-09-08 | 2017-09-08 | Conical spring processingequipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107497975B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1486376A (en) * | 1974-01-21 | 1977-09-21 | Politechnika Warszawska | Method of and apparatus for shaping the outer surfaces of cylindrical workpieces of materials which can be deformed |
| US4967580A (en) * | 1987-12-26 | 1990-11-06 | Morita Iron Works Co., Ltd. | Method and apparatus for making double-coned coil springs |
| RU2008121C1 (en) * | 1992-03-12 | 1994-02-28 | Центр безотходных технологий "Спринг" | Shaped spring manufacturing method |
| JP2000042671A (en) * | 1998-07-30 | 2000-02-15 | Asahi-Seiki Mfg Co Ltd | Spring forming method |
| EP1120580A2 (en) * | 2000-01-28 | 2001-08-01 | Chuo Hatsujo Kabushiki Kaisha | Curved helical compression spring |
| JP2002143964A (en) * | 2000-11-08 | 2002-05-21 | Mitsubishi Steel Mfg Co Ltd | Device for manufacturing coil spring |
| JP2002282982A (en) * | 2001-03-22 | 2002-10-02 | High Frequency Heattreat Co Ltd | Method and device for manufacturing double tapered spring steel wire |
| DE10126068A1 (en) * | 2001-05-28 | 2002-12-12 | Helmut Reccius | Impulse forming device for components e.g. boards etc. incorporates lead springs etc. to accumulate energy to drive displacement element for forming |
| CN102688935A (en) * | 2012-06-15 | 2012-09-26 | 浙江博雷重型机床制造有限公司 | Automatic forming equipment of pointed cone part of spiral ground pile |
| US20130036783A1 (en) * | 2010-04-19 | 2013-02-14 | Orii & Mec Corporation | System for adjusting load characteristics of conical spring |
| CN205519407U (en) * | 2016-04-29 | 2016-08-31 | 立洲（青岛）五金弹簧有限公司 | Coiling machine with chamfer device |
| CN207308846U (en) * | 2017-09-08 | 2018-05-04 | 湖北国清通用零部件有限公司 | Conical spring processingequipment |
-
2017
- 2017-09-08 CN CN201710804910.9A patent/CN107497975B/en active Active
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|---|---|---|---|---|
| GB1486376A (en) * | 1974-01-21 | 1977-09-21 | Politechnika Warszawska | Method of and apparatus for shaping the outer surfaces of cylindrical workpieces of materials which can be deformed |
| US4967580A (en) * | 1987-12-26 | 1990-11-06 | Morita Iron Works Co., Ltd. | Method and apparatus for making double-coned coil springs |
| RU2008121C1 (en) * | 1992-03-12 | 1994-02-28 | Центр безотходных технологий "Спринг" | Shaped spring manufacturing method |
| JP2000042671A (en) * | 1998-07-30 | 2000-02-15 | Asahi-Seiki Mfg Co Ltd | Spring forming method |
| EP1120580A2 (en) * | 2000-01-28 | 2001-08-01 | Chuo Hatsujo Kabushiki Kaisha | Curved helical compression spring |
| JP2002143964A (en) * | 2000-11-08 | 2002-05-21 | Mitsubishi Steel Mfg Co Ltd | Device for manufacturing coil spring |
| JP2002282982A (en) * | 2001-03-22 | 2002-10-02 | High Frequency Heattreat Co Ltd | Method and device for manufacturing double tapered spring steel wire |
| DE10126068A1 (en) * | 2001-05-28 | 2002-12-12 | Helmut Reccius | Impulse forming device for components e.g. boards etc. incorporates lead springs etc. to accumulate energy to drive displacement element for forming |
| US20130036783A1 (en) * | 2010-04-19 | 2013-02-14 | Orii & Mec Corporation | System for adjusting load characteristics of conical spring |
| CN102688935A (en) * | 2012-06-15 | 2012-09-26 | 浙江博雷重型机床制造有限公司 | Automatic forming equipment of pointed cone part of spiral ground pile |
| CN205519407U (en) * | 2016-04-29 | 2016-08-31 | 立洲（青岛）五金弹簧有限公司 | Coiling machine with chamfer device |
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| Publication number | Publication date |
|---|---|
| CN107497975B (en) | 2024-03-12 |
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