CN109261782A - A kind of cold roll forming is servo-actuated disconnecting device at arc mental section online - Google Patents
A kind of cold roll forming is servo-actuated disconnecting device at arc mental section online Download PDFInfo
- Publication number
- CN109261782A CN109261782A CN201811308698.8A CN201811308698A CN109261782A CN 109261782 A CN109261782 A CN 109261782A CN 201811308698 A CN201811308698 A CN 201811308698A CN 109261782 A CN109261782 A CN 109261782A
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- Prior art keywords
- rotating frame
- servo
- arc
- cutting
- quiet
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Links
- 230000003340 mental effect Effects 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims description 13
- 239000003921 oil Substances 0.000 claims description 10
- 239000010730 cutting oil Substances 0.000 claims description 8
- 210000000452 mid-foot Anatomy 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 3
- 239000013066 combination product Substances 0.000 abstract description 2
- 229940127555 combination product Drugs 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 19
- 239000000047 product Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
A kind of cold roll forming is servo-actuated disconnecting device at arc mental section online: including pedestal, rotating frame, rotating frame power mechanism and cutting mechanism, pedestal is equipped with into arc roller set, pedestal two sides are mutual corresponding to be fixed with supporting vertical plate, the two sides of rotating frame are hinged with each supporting vertical plate respectively, rotating frame power mechanism transmission connection rotating frame, rotating frame power mechanism is arranged in the supporting vertical plate of side, and cutting mechanism is located on rotating frame.Device combination product of the present invention coaxially realizes the servo-actuated cutting of online rate synchronization at arc axle center online using rotating frame shaft and mental section online at arc property；Power is provided using the structure of servo motor and speed reducer, servo-actuated power had both been ensured or had ensured servo-actuated cutting precision.The present invention stops line cutting at camber material compared to existing, and production efficiency about 30% can be improved, while avoiding the energy consumption of cold bending equipment frequent start-stop and wearing big drawback.
Description
Technical field
The present invention relates to a kind of cutting-off device for sectional material, especially cold roll formings to be servo-actuated cutting dress online at arc mental section
It sets.
Background technique
In recent years, metal cold-forming shapes product is as important structural member in building, automobile manufacture, shipbuilding, electricity
Many fields such as sub- industry and machinery manufacturing industry are widely used.Its product is from structural members such as common guide rail, door and windows
It is extremely extensive to some special-purpose sections that manufacture, types for specific use.Cold roll forming is a kind of section material, energy conservation, efficient
Sheet metal forming technique.Using this technique, the type of different section shape can be processed for different metal material material
Material product.The section molding of cold roll forming profile is mostly gradually to be bent by multi-pass shaping roller until becoming required cuts type.
Due to product demand, some strips need to carry out product vertical bar shaped on line after roll-in is deformed into the vertical bar shaped of section configuration
It is processed at arc, product presses product designated length cutting die at arc after processing is completed.On existing metal cold-forming shapes line at arc after,
Discharging track is annular shape, if after product is more than 2m at arc radius, can design on disconnecting device and be servo-actuated track, by being servo-actuated
The servo-actuated cutting of path implementation.If but product is less than 2m at arc radius, cuts according to tradition cutting structure and servo-actuated path implementation are servo-actuated
It is disconnected more difficult, it needs to adjust under this condition after cutting mechanism angle to product cuts off tangential direction position and stops line cutting, therefore
30% processing efficiency is reduced, while cold bending equipment frequent start-stop consumes energy and wears larger.
Summary of the invention
The present invention provides a kind of cold roll formings to be servo-actuated disconnecting device at arc mental section online, and described device can be to small
It is servo-actuated cutting online at arc radius mental section, effectively increases production efficiency.
Problem of the present invention is realized with following technical proposals:
A kind of cold roll forming is servo-actuated disconnecting device at arc mental section online: dynamic including pedestal, rotating frame, rotating frame
Force mechanisms and cutting mechanism, pedestal are equipped with into arc roller set, and pedestal two sides are mutual corresponding to be fixed with supporting vertical plate, rotating frame
The two sides of frame are hinged with each supporting vertical plate respectively, rotating frame power mechanism transmission connection rotating frame, rotating frame engine
Structure is arranged in the supporting vertical plate of side, and cutting mechanism is located on rotating frame.
Above-mentioned cold roll forming is servo-actuated disconnecting device at arc mental section online, and the rotating frame power mechanism includes servo
Motor and retarder, servo motor transmission connect retarder, the affixed shaft of reducer output shaft, shaft pass through rotating frame and with
Rotating frame is fixedly connected, and both ends of the shaft is rotatablely connected with supporting vertical plate respectively.
Above-mentioned cold roll forming is servo-actuated disconnecting device at arc mental section online, and the rotating frame lower part is successively arranged frame
Bottom support plate, oil cylinder support plate, the cutting mechanism are equipped with cutting mold and cutting oil cylinder, and cutting mold is fixed on framework bottom branch
On fagging, cutting oil cylinder is fixed in oil cylinder support plate, and cutting mold is equipped with cope plate, moving knife seat, moving knife, lower template, quiet knife
Seat, the quiet knife of pan feeding and the quiet knife of discharging, cope plate top connect cutting cylinder piston rod through link block, and cope plate lower part connects moving knife
Seat, moving knife seat connect moving knife；Lower template is fixed in framework bottom support plate, and two quiet tool aprons are symmetrically fixed in lower template, is entered
Expect that quiet knife and the quiet knife of discharging are sequentially fixed between two quiet tool aprons, be equipped on the quiet knife of pan feeding and the quiet knife that discharges and at camber material outside
Wide matched slot, spindle central to the quiet cutter groove hole of pan feeding, the quiet cutter groove hole of discharging distance at the radius of the radian ruler of camber material
Very little matching.
Above-mentioned cold roll forming is servo-actuated disconnecting device at arc mental section online, and the rotating frame top is equipped with counterweight.
Above-mentioned cold roll forming is servo-actuated disconnecting device at arc mental section online, and cutting mold is additionally provided with two guide posts, respectively leads
The bottom of column is respectively and fixedly connected with each quiet tool apron, and each guide post top is slidably matched with cope plate.
Above-mentioned cold roll forming is servo-actuated disconnecting device at arc mental section online, is additionally provided with midfoot support plate on rotating frame,
Midfoot support plate is separately mounted to the two sides up and down of shaft.
Above-mentioned cold roll forming is servo-actuated disconnecting device at arc mental section online, is connected in the middle part of two supporting vertical plates by vertical plate dowel
It connects.
Device of the present invention is servo-actuated online at arc mental section for cold roll forming and cuts section design, is suitable for into arc radius
It is smaller and at curved rate be single curvature profile cut off online.Described device combination product is online at arc property, using being equipped with
The rotating frame shaft and mental section of cutting mechanism realize the rates synchronous follow-up such as online online at the same shaft design of arc axis
Cutting；It uses servo motor and speed reducer to provide power for rotating frame, has both ensured servo-actuated power or ensured servo-actuated cutting
Precision；Rotating frame one end uses counterweight, to balance torque of the cutting mold to center of rotation, reduces motor reducer
Load.The present invention stops line cutting at camber material compared to existing, and production efficiency about 30% can be improved, while avoiding cold bending equipment frequency
Big drawback is consumed energy and is worn in numerous start and stop.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of pan feeding state of the present invention；
Fig. 3 is the structural schematic diagram of pan feeding state rotating frame and cutting mechanism of the present invention；
Fig. 4 is the structural schematic diagram of dissengaged positions of the present invention；
Fig. 5 is the structural schematic diagram of dissengaged positions rotating frame and cutting mechanism of the present invention；
Fig. 6 is the structural schematic diagram of state after present invention cutting.
Each list of reference numerals in figure are as follows: 1, at camber material, 2, pedestal, 3, supporting vertical plate, 4, at arc roller set, 5, servo electricity
Machine, 6, retarder, 7, rotating frame, 8, counterweight, 9, midfoot support plate, 10, shaft, 11, vertical plate dowel, 12, oil cylinder support
Plate, 13, framework bottom support plate, 14, cutting oil cylinder, 15, link block, 16, cope plate, 17, guide post, 18, quiet tool apron, 19, lower die
Plate, 20, the quiet knife of discharging, 21, the quiet knife of pan feeding, 22, moving knife, 23, moving knife seat.
Specific embodiment
The present invention be arranged in cold roll forming rolling-line at segmental arc, the profile after roll-forming enters into arc roller set 4,
It is formed after at arc roll-in into camber material 1, carries out online servo-actuated cutting in apparatus of the present invention immediately.Referring to Fig. 1, described device packet
Include pedestal 2, rotating frame 7, rotating frame power mechanism and cutting mechanism.Pedestal be equipped at arc roller set 4, on pedestal at
The two sides of arc roller set are mutual corresponding to be fixed with supporting vertical plate 3, is connected in the middle part of two supporting vertical plates by vertical plate dowel 11.Rotation
Frame can be with respect to two supporting vertical plate fixed-axis rotations.The rotate driving power of rotating frame is from rotating frame power mechanism.Rotation
Frame power mechanism is assemblied in the supporting vertical plate of side, and rotating frame power mechanism includes servo motor 5 and retarder 6, servo
Motor drive connects retarder, the affixed shaft 10 of reducer output shaft, and shaft, which passes through rotating frame and fixes with rotating frame, to be connected
It connects, both ends of the shaft is rotatablely connected with supporting vertical plate respectively.The shaft axis of rotating frame at arc roller set at arc center line
Collinearly.For cutting mechanism for cutting into the profile after arc, cutting mechanism is mounted on the lower part of rotating frame.The top of rotating frame
Torque equipped with counterweight 8, with balance rotating frame to center of rotation.
Referring to Fig. 3, rotating frame is equipped with both side plate, is successively arranged framework bottom support plate 13, oil cylinder in rotating frame lower part
Support plate 12, shaft are located in the middle part of rotating frame, and upper and lower in shaft is respectively equipped with midfoot support plate 9, and the two of midfoot support plate
End is fixed with the both side plate of rotating frame respectively.The cutting mechanism is equipped with cutting mold and cutting oil cylinder 14, and cutting mold is solid
It is scheduled in framework bottom support plate, cutting oil cylinder is fixed in oil cylinder support plate.Cut off mold be equipped with cope plate 16, moving knife seat 23,
The quiet knife 21 of moving knife 22, lower template 19, quiet tool apron 18, pan feeding and the quiet knife 20 of discharging.It cuts off cylinder piston rod and passes through oil cylinder support plate
It is connect with cope plate through link block 15, cope plate lower part connects moving knife seat, and moving knife seat connects moving knife, drive of the moving knife in cutting oil cylinder
Dynamic lower up and down motion cuts into camber material with the cooperation of quiet knife.Lower template is fixed in framework bottom support plate, and two quiet tool aprons are symmetrical
It is fixed in lower template, the quiet knife of pan feeding and the quiet knife of discharging are sequentially fixed between two quiet tool aprons, on the quiet knife of pan feeding and the quiet knife of discharging
It is equipped with at the matched slot of camber material gabarit, there are the moving knife moved back and forth for moving knife between the quiet knife of pan feeding and the quiet knife of discharging
Gap.The distance in spindle central to the quiet cutter groove hole of pan feeding, the quiet cutter groove hole of discharging is matched at the radius of the radian size of camber material.For
Guarantee that moving knife is stable, cutting mold is additionally provided with two guide posts, and the bottom of each guide post 17 is respectively and fixedly connected with each quiet tool apron, each guide post
Top is slidably matched with cope plate.
The present invention is suitable for into arc radius R smaller (being less than 2m at arc radius) and is single curvature into camber material at curved rate
Online servo-actuated cutting.The course of work of described device is as follows: to cooperate cutting mechanism pan feeding, the initial position of rotating frame is crossed into
Last roller of arc roller set, in vertical direction with β angle.The profile strip of uniform motion is after forming arc at arc roller
It penetrates the quiet knife of pan feeding of cutting mold and the quiet knife that discharges, cuts off oil cylinder at this time and be in backhaul state, as shown in Figure 2 and Figure 3.Servo
Motor rotation, rotating frame fixed-axis rotation counterclockwise, rotating frame under the effect of the power of motor and speed reducer 19 accelerate through angle
Reach at uniform speed's cutting is carried out after the rates such as camber material, moving knife moves downward cutting product under the action of cutting off oil cylinder
Part, rotating frame relative starting position is at θ angle at this time, as shown in Figure 4, Figure 5.It is servo-actuated at camber material to prevent pan feeding top knife
After cutting rotating frame continue with etc. rates run the angle γ, as shown in Figure 6.After moving knife moves upwards completion reset, rotating frame
Feeding position is reversely clockwise to after decelerating through motor is braked, device completes primary servo-actuated cutting.Above-mentioned course of work rotation
Turn the starting of frame, accelerates rotation, uniform rotation cutting, slow down, stop and rotate backward the stages such as return, stopping, power
Using the servo motor acceleration and deceleration machine with power-off band-type brake function, process control is using PLC, servo-driver module and corresponding
Electric controling element cooperates algorithm routine to realize.
Claims (7)
1. a kind of cold roll forming is servo-actuated disconnecting device at arc mental section online, it is characterised in that: including pedestal (2), rotating frame
Frame (7), rotating frame power mechanism and cutting mechanism, pedestal are equipped at arc roller set (4), and pedestal two sides are mutual corresponding solid
Surely there are supporting vertical plate (3), the two sides of rotating frame are hinged with each supporting vertical plate respectively, the transmission connection rotation of rotating frame power mechanism
Turn frame, rotating frame power mechanism is arranged in the supporting vertical plate of side, and cutting mechanism is located on rotating frame.
2. cold roll forming according to claim 1 is servo-actuated disconnecting device at arc mental section online, it is characterised in that: described
Rotating frame power mechanism includes servo motor (5) and retarder (6), and servo motor transmission connects retarder, retarder output
The affixed shaft of axis (10), shaft pass through rotating frame and are fixedly connected with rotating frame, and both ends of the shaft turns with supporting vertical plate respectively
Dynamic connection.
3. cold roll forming according to claim 2 is servo-actuated disconnecting device at arc mental section online, it is characterised in that: described
Rotating frame lower part is successively arranged framework bottom support plate (13), oil cylinder support plate (12), and the cutting mechanism is equipped with cutting mold
With cutting oil cylinder (14), cutting mold is fixed in framework bottom support plate, and cutting oil cylinder is fixed in oil cylinder support plate, knife edge die
Tool is equipped with cope plate (16), moving knife seat (23), moving knife (22), lower template (19), quiet tool apron (18), the quiet knife of pan feeding (21) and discharging
Quiet knife (20), cope plate top connect cutting cylinder piston rod through link block (15), and cope plate lower part connects moving knife seat, moving knife seat
Connect moving knife；Lower template is fixed in framework bottom support plate, and two quiet tool aprons are symmetrically fixed in lower template, the quiet knife of pan feeding and go out
Expect that quiet knife is sequentially fixed between two quiet tool aprons, is equipped on the quiet knife of pan feeding and the quiet knife of discharging and at the matched slot of camber material gabarit
Hole, spindle central to the quiet cutter groove hole of pan feeding, the quiet cutter groove hole of discharging distance matched at the radius of the radian size of camber material.
4. cold roll forming according to claim 3 is servo-actuated disconnecting device at arc mental section online, it is characterised in that: described
Rotating frame top is equipped with counterweight (8).
5. cold roll forming according to claim 4 is servo-actuated disconnecting device at arc mental section online, it is characterised in that: cutting
Mold is additionally provided with two guide posts, and the bottom of each guide post (17) is respectively and fixedly connected with each quiet tool apron, and each guide post top is matched with cope plate sliding
It closes.
6. cold roll forming according to claim 5 is servo-actuated disconnecting device at arc mental section online, it is characterised in that: rotation
It is additionally provided on frame midfoot support plate (9), midfoot support plate is separately mounted to the two sides up and down of shaft.
7. cold roll forming according to claim 6 is servo-actuated disconnecting device at arc mental section online, it is characterised in that: two
It supports and is connected in the middle part of vertical plate by vertical plate dowel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308698.8A CN109261782A (en) | 2018-11-05 | 2018-11-05 | A kind of cold roll forming is servo-actuated disconnecting device at arc mental section online |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308698.8A CN109261782A (en) | 2018-11-05 | 2018-11-05 | A kind of cold roll forming is servo-actuated disconnecting device at arc mental section online |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109261782A true CN109261782A (en) | 2019-01-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811308698.8A Pending CN109261782A (en) | 2018-11-05 | 2018-11-05 | A kind of cold roll forming is servo-actuated disconnecting device at arc mental section online |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109261782A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633389A (en) * | 2020-06-23 | 2020-09-08 | 张家港玉成精机股份有限公司 | Machining method for circular ring workpiece |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0186072A2 (en) * | 1984-12-22 | 1986-07-02 | Gerhard Dipl.-Ing. Krückels | Apparatus for cutting profiles after bending |
| CN87212198U (en) * | 1987-03-31 | 1988-11-02 | 丹尼尔·史密斯有限公司 | Improved shear unit with continuous feed |
| US5305625A (en) * | 1992-09-18 | 1994-04-26 | Shape Corporation | Adjustable cutoff apparatus |
| US6386011B1 (en) * | 2001-01-18 | 2002-05-14 | Tishken Products Co. | Adjustable cut off apparatus for elongated articles having varying degrees of sweep |
| CN104589399A (en) * | 2014-11-27 | 2015-05-06 | 安庆潜山永大文体用品有限公司 | Cutting device for cambered surface |
| CN204450055U (en) * | 2015-03-03 | 2015-07-08 | 青岛丰穗达机械有限公司 | A kind of curved pipe cutting on line frock |
| CN107234443A (en) * | 2017-07-05 | 2017-10-10 | 湖南大学 | The three-dimensional online pane bending apparatus of variable curvature section bar that robot is actively drawn |
| CN206716753U (en) * | 2017-04-07 | 2017-12-08 | 上海上垫垫圈有限公司 | A kind of plate shearing machine feeding device |
| CN107737989A (en) * | 2017-11-20 | 2018-02-27 | 江苏凌云恒晋汽车零部件有限公司 | A kind of online cutting knife |
| CN207226308U (en) * | 2017-10-10 | 2018-04-13 | 沈阳大学 | A kind of cloud platform manufactures product loading attachment |
| CN207272285U (en) * | 2017-09-27 | 2018-04-27 | 重庆凌云汽车零部件有限公司 | A kind of w tee sections bumper diced system |
| CN207806757U (en) * | 2018-01-29 | 2018-09-04 | 顺普汽车零部件（中国）有限公司 | A kind of lateral change radian cut-out equipment |
| CN209288042U (en) * | 2018-11-05 | 2019-08-23 | 凌云工业股份有限公司汽车零部件研发分公司 | Cold roll forming production line is servo-actuated disconnecting device at camber material online |
-
2018
- 2018-11-05 CN CN201811308698.8A patent/CN109261782A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0186072A2 (en) * | 1984-12-22 | 1986-07-02 | Gerhard Dipl.-Ing. Krückels | Apparatus for cutting profiles after bending |
| CN87212198U (en) * | 1987-03-31 | 1988-11-02 | 丹尼尔·史密斯有限公司 | Improved shear unit with continuous feed |
| US5305625A (en) * | 1992-09-18 | 1994-04-26 | Shape Corporation | Adjustable cutoff apparatus |
| US6386011B1 (en) * | 2001-01-18 | 2002-05-14 | Tishken Products Co. | Adjustable cut off apparatus for elongated articles having varying degrees of sweep |
| CN104589399A (en) * | 2014-11-27 | 2015-05-06 | 安庆潜山永大文体用品有限公司 | Cutting device for cambered surface |
| CN204450055U (en) * | 2015-03-03 | 2015-07-08 | 青岛丰穗达机械有限公司 | A kind of curved pipe cutting on line frock |
| CN206716753U (en) * | 2017-04-07 | 2017-12-08 | 上海上垫垫圈有限公司 | A kind of plate shearing machine feeding device |
| CN107234443A (en) * | 2017-07-05 | 2017-10-10 | 湖南大学 | The three-dimensional online pane bending apparatus of variable curvature section bar that robot is actively drawn |
| CN207272285U (en) * | 2017-09-27 | 2018-04-27 | 重庆凌云汽车零部件有限公司 | A kind of w tee sections bumper diced system |
| CN207226308U (en) * | 2017-10-10 | 2018-04-13 | 沈阳大学 | A kind of cloud platform manufactures product loading attachment |
| CN107737989A (en) * | 2017-11-20 | 2018-02-27 | 江苏凌云恒晋汽车零部件有限公司 | A kind of online cutting knife |
| CN207806757U (en) * | 2018-01-29 | 2018-09-04 | 顺普汽车零部件（中国）有限公司 | A kind of lateral change radian cut-out equipment |
| CN209288042U (en) * | 2018-11-05 | 2019-08-23 | 凌云工业股份有限公司汽车零部件研发分公司 | Cold roll forming production line is servo-actuated disconnecting device at camber material online |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633389A (en) * | 2020-06-23 | 2020-09-08 | 张家港玉成精机股份有限公司 | Machining method for circular ring workpiece |
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