CN108380712A - The stepless regulated bending machine of intelligent numerical control - Google Patents
The stepless regulated bending machine of intelligent numerical control Download PDFInfo
- Publication number
- CN108380712A CN108380712A CN201711477223.7A CN201711477223A CN108380712A CN 108380712 A CN108380712 A CN 108380712A CN 201711477223 A CN201711477223 A CN 201711477223A CN 108380712 A CN108380712 A CN 108380712A
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- China
- Prior art keywords
- mounting base
- cope plate
- output end
- numerical control
- bending machine
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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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/01—Selection of materials
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
-
- 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/12—Bending rods, profiles, or tubes with programme control
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The stepless regulated bending machine of intelligent numerical control disclosed by the invention, including rack, organic frame mounting base is arranged in the top of rack, lifting pressing mechanism is provided in rack mounting base, the output end of lifting pressing mechanism is connected with upper die component, and the lower part of rack is provided with the lower mold assemblies with upper die component corresponding matching；Upper die component includes upper mold mounting base, and the both ends of upper mold mounting base have been rotatably coupled rotary mounting seat, tensile machine is provided on rotary mounting seat, cope plate is connected between the output end of two tensile machines respectively；Lower mold assemblies include lower die mounting base and lower template, and lower die mounting base is set side by side with several elastic mechanisms along the length direction of lower template, and the output end of elastic mechanism is connected to cope plate, pressure sensor is provided between cope plate and the output end of elastic mechanism.The configuration of the present invention is simple is reasonable, easy to operate, can be suitable for the product processing of different model, specification, and the scope of application is wider, and the qualification rate of product processing is higher.
Description
Technical field
The present invention relates to mental section bend molding apparatus technical field, more particularly to a kind of intelligent numerical control is stepless regulated curved
Bent machine.
Background technology
Currently, the mental section with certain amount of bow is widely used in production and living, especially in aircraft and vapour
It is widely used in the manufacture of vehicle, in order to obtain the mental section with predefined curved amount, then needs to mental section
It is manually bent.
For example, the aluminium applied to vehicle dormer window guide rail, just needs to be manually bent in processing.Since aluminium holds
Oxidizable, hardness becomes larger after oxidation, and rebound degree also changes therewith, therefore when being bent vehicle dormer window aluminium guide rail with bending apparatus,
Vehicle dormer window aluminium guide rail should be processed into different curvature according to the difference of rebound degree.But existing vehicle dormer window aluminium guide rail
Bending apparatus can only process fixed curvature, be unable to adjust bending machining ability, thus be difficult to be suitable for different model, rule
The products of lattice is processed, and leads to that there are larger limitations.In addition, existing vehicle dormer window aluminium rail bends equipment is at work
In, the dwell time of bending can not be accurately controlled, can only be determined according to the experience of worker, cause the qualification rate of product compared with
It is low.
Invention content
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of stepless regulated bendings of intelligent numerical control
Machine, it is simple and reasonable, it is easy to operate, the product processing of different model, specification can be suitable for, the scope of application is wider, production
The qualification rate of product processing is higher.
To achieve the above object, the present invention uses following technical scheme.
The top setting of the stepless regulated bending machine of intelligent numerical control, including rack and programming Control device, the rack is organic
Frame mounting base, lifting pressing mechanism is provided in the rack mounting base, and the output end of the lifting pressing mechanism is connected with
Membrane module, the lower part of the rack are provided with the lower mold assemblies with the upper die component corresponding matching；
The upper die component includes upper mold mounting base, and the output end of the upper mold mounting base and the lifting pressing mechanism, which is fixed, to be connected
It connects, is provided with the linear slide rail for sliding cooperation vertically with the upper mold mounting base in the rack, the two of the upper mold mounting base
End has been rotatably coupled rotary mounting seat respectively, and tensile machine, two puller systems are provided on the rotary mounting seat
It is connected with cope plate between the output end of structure, mounting plate is provided in the upper mold mounting base, the mounting plate is along the upper mold
The length direction of plate is set side by side with several servo motors, and the output end of the servo motor is connected with by screw component and institute
The upper surface for stating cope plate offsets the briquetting of cooperation；
The lower mold assemblies include lower die mounting base, the lower template with the cope plate corresponding matching, and the lower die mounting base is solid
Surely it is set to the lower part of the rack, if the lower die mounting base is set side by side with dry elasticity along the length direction of the lower template
Mechanism, the output end of the elastic mechanism are connected to the cope plate, the output end of the cope plate and the elastic mechanism it
Between be provided with pressure sensor, the rest area being placed in for workpiece is formed between the cope plate and the lower template.
Further, the lifting pressing mechanism is set as lifting cylinder, and the mounting base is defeated with the lifting cylinder
Shaft is fixedly connected, and drives the upper die component to be moved back and forth vertically along the linear slide rail by the lifting cylinder.
Further, the tensile machine includes the pulling force cylinde being fixed on the rotary mounting seat, the pulling force gas
The output shaft of cylinder is connected to the cope plate by connected components.
Further, the connected components include upper link block and lower connecting block, the upper link block and the drawing
The output shaft of strength cylinder is fixedly connected, and the lower connecting block is fixedly connected with the cope plate, the upper link block with it is described under
Link block is rotatablely connected.
Further, the upper link block is fixedly installed leads with the first of the output shaft corresponding matching of the pulling force cylinde
To bar, first guide rod coordinates with rotary mounting seat sliding.
Further, the screw component includes drive lead screw and the drive block that is sequentially connected with the drive lead screw, institute
The output end that drive lead screw is fixedly attached to the servo motor is stated, the drive block is provided with drive link, the drive link
Bottom end is fixedly connected with the briquetting, is provided in the upper mold mounting base and is oriented to the first of drive link sliding cooperation
Seat.
Further, the output end of the elastic mechanism is provided with clamp system, and the clamp system includes clamp base,
One end of the clamp base is provided with fixed block, and the other end of the clamp base is provided with clamping cylinder, the clamping gas
For the output end of cylinder towards the fixed block, the output shaft of the clamping cylinder is connected with the gripping block coordinated with the fixed block,
The lower template is clamped between the fixed block and the gripping block, is arranged between the lower template and the clamp base
There is the pressure sensor.
Further, be provided with the second guide holder in the lower die mounting base, be provided in the clamp base with it is described
Second guide holder slides the second guide rod of cooperation vertically.
Further, the elastic mechanism is set as the gas spring being fixed on vertically in the lower die mounting base.
Further, the cope plate, the lower template are all made of nylon material and are made.
Beneficial effects of the present invention are：The stepless regulated bending machine of intelligent numerical control provided by the invention, by being installed in upper mold
Rotary mounting seat is arranged in the both ends of seat, and tensile machine is arranged on rotary mounting seat, is connected between the output end of two tensile machines
Cope plate is set, mounting plate is set in upper mold mounting base, is set up in parallel on a mounting board along the length direction of cope plate several
The output end of servo motor, servo motor is connected with the briquetting coordinated with the upper surface of cope plate by screw component, and under
The length direction of mould mounting base upper edge lower template is set up in parallel several elastic mechanisms, and the output end of elastic mechanism is connected to lower die
Pressure sensor is set between the output end of plate, lower template and elastic mechanism, when work, first according to the type of workpiece to be processed
Number, specification, each servo motor corresponding actions are controlled by programming Control device, apply downward pressure to cope plate by briquetting,
And under the mating reaction of two tensile machines, make cope plate flexural deformation, workpiece to be processed is then placed on cope plate
Between lower template, and starting lifting pressing mechanism, driving upper die component integrally moves down, and workpiece is pressed down against by cope plate, this
In the process, under the mating reaction of elastic mechanism, lower template also can be deformed upon accordingly so that workpiece is gradually bent, instantly
Each pressure sensor of membrane module detect setting pressure when, lifting pressing mechanism stopping action, at this time i.e. show workpiece by
It machines, is finally moved up by lifting pressing mechanism driving upper die component, the artificial workpiece taken out after processing.
In conclusion the configuration of the present invention is simple is reasonable, and it is easy to operate, different model, rule can be suitable for during use
The product of lattice is processed, and the scope of application is wider, and the qualification rate of product processing is higher.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is present invention lifting pressing mechanism and upper die component mating connection structural schematic diagram.
Fig. 3 is the structural schematic diagram of tensile machine of the present invention.
Fig. 4 is the cooperation mounting structure schematic diagram of servo motor and briquetting of the present invention.
Fig. 5 is the structural schematic diagram of lower mold assemblies of the present invention.
In Fig. 1-5：1, rack；11, rack mounting base；12, lifting cylinder；13, linear slide rail；2, upper die component；21, on
Mould mounting base；22, rotary mounting seat；23, cope plate；24, pulling force cylinde；251, upper link block；252, lower connecting block；26, pacify
Loading board；27, servo motor；281, drive lead screw；282, drive block；2821, drive link；283, the first guide holder；29, briquetting；
3, lower mold assemblies；31, lower die mounting base；32, lower template；33, gas spring；341, clamp base；342, fixed block；343, it clamps
Cylinder；344, gripping block；345, the second guide rod；35, the second guide holder.
Specific implementation mode
The present invention will be further described below with reference to the drawings.
The stepless regulated bending machine of intelligent numerical control as shown in Figs. 1-5, including rack 1 and programming Control device, wherein programming
Control device is relatively conventional in intelligent numerical control field, therefore is not repeated in the present embodiment, and effect mainly passes through Programming,
To which machinery, the electric part to the present invention carry out intelligent control.
Organic frame mounting base 11 is arranged in the top of rack 1, and lifting pressing mechanism is provided in rack mounting base 11, and lifting adds
The output end of press mechanism is connected with upper die component 2, and the lower part of rack 1 is provided with the lower mold assemblies with 2 corresponding matching of upper die component
3。
Upper die component 2 includes upper mold mounting base 21, and upper mold mounting base 21 is fixedly connected with the output end of lifting pressing mechanism,
It is provided in rack 1 and the linear slide rail 13 that sliding coordinates vertically of upper mold mounting base 21.In the present embodiment, lifting pressing mechanism is set
It is set to lifting cylinder 12, mounting base is fixedly connected with the output shaft of lifting cylinder 12, and 2 edge of upper die component is driven by lifting cylinder 12
Linear slide rail 13 moves back and forth vertically.The present invention is using lifting cylinder 12 as lifting pressing mechanism so that working performance is more
Stablize, is reliable, being conducive to the processing quality for improving product.
The both ends of upper mold mounting base 21 have been rotatably coupled rotary mounting seat 22 respectively, are provided on rotary mounting seat 22
Tensile machine is connected with cope plate 23 between the output end of two tensile machines.In the present embodiment, tensile machine includes being fixed on
The output shaft of pulling force cylinde 24 on rotary mounting seat 22, pulling force cylinde 24 is connected to cope plate 23 by connected components,
Connected components include upper link block 251 and lower connecting block 252, and upper link block 251 and the output shaft of pulling force cylinde 24 are fixed
Connection, lower connecting block 252 are fixedly connected with cope plate 23, and upper link block 251 is rotatablely connected with lower connecting block 252.Setting rotation
Mounting base 22, and tensile machine is set on rotary mounting seat 22, it is cooperateed with servo motor 27 and briquetting 29 by tensile machine
Cooperation, it is ensured that the present invention can carry out bending setting to cope plate 23 when in use, both allow the invention to be suitable for not
The product processing of same specification, model, while being also beneficial to improve the processing quality of product.
Upper link block 251 is fixedly installed the first guide rod 2511 with the output shaft corresponding matching of pulling force cylinde 24, the
One guide rod 2511 coordinates with the sliding of rotary mounting seat 22, further improves the reliability of the present invention.
Mounting plate 26 is provided in upper mold mounting base 21, mounting plate 26 is equally spacedly arranged side by side along the length direction of cope plate 23
Several servo motors 27 are provided with, the output end of servo motor 27 is connected with the upper surface phase with cope plate 23 by screw component
Briquetting 29 to cooperation.In the present embodiment, screw component includes drive lead screw 281 and the biography that is sequentially connected with drive lead screw 281
Motion block 282, drive lead screw 281 are fixedly attached to the output end of servo motor 27, and drive block 282 is provided with drive link 2821, pass
The bottom end of lever 2821 is fixedly connected with briquetting 29, and first with the sliding cooperation of drive link 2821 is provided in upper mold mounting base 21
Guide holder 283.When servo motor 27 starts, 282 lifting moving of drive block is driven by drive lead screw 281, and then pass through transmission
Bar 2821 drives 29 vertical shift of briquetting.Drive link 2821 coordinates in moving process with the first guide holder 283, it is ensured that transmission
Bar 2821 will not occur undesirably to deflect, and then further improve the reliability of the present invention.
Lower mold assemblies 3 include lower die mounting base 31, the lower template 32 with 23 corresponding matching of cope plate, and lower die mounting base 31 is solid
Surely it is set to the lower part of rack 1, lower die mounting base 31 is set side by side with several elastic mechanisms along the length direction of lower template 32, excellent
Selection of land, elastic mechanism are set as the gas spring being fixed on vertically in lower die mounting base 31 33.The output end of elastic mechanism is connected to
Cope plate 23 is provided with pressure sensor between cope plate 23 and the output end of elastic mechanism（It is not shown in figure）, cope plate 23
The rest area being placed in for workpiece is formed between lower template 32.
In the present embodiment, in order to improve the mounting position degree of lower template 32, the output end of elastic mechanism is provided with clamping machine
Structure, clamp system include clamp base 341, and one end of clamp base 341 is provided with fixed block 342, clamp base 341 it is another
End is provided with clamping cylinder 343, and the output end of clamping cylinder 343 is towards fixed block 342, the output axis connection of clamping cylinder 343
There are the gripping block 344 coordinated with fixed block 342, lower template 32 to be clamped between fixed block 342 and gripping block 344, lower template
The pressure sensor is provided between 32 and clamp base 341.
Preferably, it is provided with the second guide holder 35 in lower die mounting base 31, is provided in clamp base 341 and is oriented to second
The second guide rod 345 that sliding coordinates vertically of seat 35, further improves the stability of the present invention.
Preferably, in the present embodiment, cope plate 23, lower template 32 are all made of the elastic material system with certain rebound degree
At specifically, in order to improve the processing effect of product, cope plate 23, lower template 32 are all made of nylon material and are made.
When work, first according to the model of workpiece to be processed, specification, each 27 phase of servo motor is controlled by programming Control device
It should act, downward pressure apply cope plate 23 by briquetting 29, and under the mating reaction of two tensile machines, make upper mold
23 flexural deformation of plate（Cope plate 23 is set as workpiece shape to be processed）, then workpiece to be processed is placed on
Between template 23 and lower template 32, start lifting cylinder 12, drives upper die component 2 is whole to move down by lifting cylinder 12, make upper mold
Plate 23 is pressed down against workpiece, during cope plate 23 squeezes workpiece, due to each position and workpiece of 23 lower face of cope plate
Time of contact is different, therefore the time that lower template 32 is under pressure is also corresponding different, under the mating reaction of gas spring 33, lower die
Plate 32 can accordingly bend deformation so that workpiece is gradually bent, until each pressure sensor of membrane module detects instantly
When setting pressure, 12 stopping of lifting cylinder acts and carries out pressurize, shows that workpiece has been processed molding at this time, finally by lifting
Oil cylinder 12 drives upper die component 2 to move up, under the action of gas spring 33, the also gradual homing of lower template 32, when upper die component 2
After reset, by manually taking out the workpiece after processing, to just complete the bending machining to aluminum skylight guide rail.
In conclusion the configuration of the present invention is simple is reasonable, and it is easy to operate, different model, rule can be suitable for during use
The product of lattice is processed, and the scope of application is wider, and the qualification rate of product processing is higher.
The above is only the better embodiment of the present invention, therefore all constructions according to described in present patent application range,
The equivalent change or modification that feature and principle are done, is included within the scope of present patent application.
Claims (10)
1. the stepless regulated bending machine of intelligent numerical control, it is characterised in that：Including rack and programming Control device, the top of the rack
Organic frame mounting base is set, lifting pressing mechanism, the output end of the lifting pressing mechanism are provided in the rack mounting base
It is connected with upper die component, the lower part of the rack is provided with the lower mold assemblies with the upper die component corresponding matching；
The upper die component includes upper mold mounting base, and the output end of the upper mold mounting base and the lifting pressing mechanism, which is fixed, to be connected
It connects, is provided with the linear slide rail for sliding cooperation vertically with the upper mold mounting base in the rack, the two of the upper mold mounting base
End has been rotatably coupled rotary mounting seat respectively, and tensile machine, two puller systems are provided on the rotary mounting seat
It is connected with cope plate between the output end of structure, mounting plate is provided in the upper mold mounting base, the mounting plate is along the upper mold
The length direction of plate is set side by side with several servo motors, and the output end of the servo motor is connected with by screw component and institute
The upper surface for stating cope plate offsets the briquetting of cooperation；
The lower mold assemblies include lower die mounting base, the lower template with the cope plate corresponding matching, and the lower die mounting base is solid
Surely it is set to the lower part of the rack, if the lower die mounting base is set side by side with dry elasticity along the length direction of the lower template
Mechanism, the output end of the elastic mechanism are connected to the cope plate, the output end of the cope plate and the elastic mechanism it
Between be provided with pressure sensor, the rest area being placed in for workpiece is formed between the cope plate and the lower template.
2. the stepless regulated bending machine of intelligent numerical control according to claim 1, it is characterised in that：The lifting pressing mechanism is set
It is set to lifting cylinder, the mounting base is fixedly connected with the output shaft of the lifting cylinder, described in lifting cylinder driving
Upper die component moves back and forth vertically along the linear slide rail.
3. the stepless regulated bending machine of intelligent numerical control according to claim 1, it is characterised in that：The tensile machine includes solid
Pulling force cylinde on the rotary mounting seat, the output shaft of the pulling force cylinde are connected to described by connected components
Cope plate.
4. the stepless regulated bending machine of intelligent numerical control according to claim 3, it is characterised in that：The connected components packet
Link block and lower connecting block are included, the upper link block is fixedly connected with the output shaft of the pulling force cylinde, the lower connecting block
It is fixedly connected with the cope plate, the upper link block is rotatablely connected with the lower connecting block.
5. the stepless regulated bending machine of intelligent numerical control according to claim 4, it is characterised in that：The upper link block fixation is set
It is equipped with the first guide rod with the output shaft corresponding matching of the pulling force cylinde, first guide rod and the rotary mounting seat
Sliding cooperation.
6. the stepless regulated bending machine of intelligent numerical control according to claim 1, it is characterised in that：The screw component includes passing
Dynamic lead screw and the drive block being sequentially connected with the drive lead screw, the drive lead screw are fixedly attached to the defeated of the servo motor
Outlet, the drive block are provided with drive link, and the bottom end of the drive link is fixedly connected with the briquetting, the upper mold mounting base
Inside it is provided with the first guide holder with drive link sliding cooperation.
7. the stepless regulated bending machine of intelligent numerical control according to claim 1, it is characterised in that：The output of the elastic mechanism
End is provided with clamp system, and the clamp system includes clamp base, and one end of the clamp base is provided with fixed block, described
The other end of clamp base is provided with clamping cylinder, and the output end of the clamping cylinder is towards the fixed block, the clamping gas
The output shaft of cylinder is connected with the gripping block coordinated with the fixed block, and the lower template is clamped to the fixed block and the folder
Between tight block, the pressure sensor is provided between the lower template and the clamp base.
8. the stepless regulated bending machine of intelligent numerical control according to claim 7, it is characterised in that：It is set in the lower die mounting base
It is equipped with the second guide holder, the second guide rod for sliding cooperation vertically with second guide holder is provided in the clamp base.
9. the stepless regulated bending machine of intelligent numerical control according to claim 1 or 7 or 8, it is characterised in that：The elastic mechanism
It is set as the gas spring being fixed on vertically in the lower die mounting base.
10. the stepless regulated bending machine of intelligent numerical control according to claim 1, it is characterised in that：The cope plate, it is described under
Template is all made of nylon material and is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711477223.7A CN108380712A (en) | 2017-12-29 | 2017-12-29 | The stepless regulated bending machine of intelligent numerical control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711477223.7A CN108380712A (en) | 2017-12-29 | 2017-12-29 | The stepless regulated bending machine of intelligent numerical control |
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| CN108380712A true CN108380712A (en) | 2018-08-10 |
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ID=63076585
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| CN201711477223.7A Pending CN108380712A (en) | 2017-12-29 | 2017-12-29 | The stepless regulated bending machine of intelligent numerical control |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304385A (en) * | 2018-11-27 | 2019-02-05 | 意特利（滁州）智能数控科技有限公司 | A kind of bullodozer and its operation method |
| CN110814115A (en) * | 2019-10-18 | 2020-02-21 | 宁波敏实汽车零部件技术研发有限公司 | Mold core positioning mechanism of automobile sunroof guide rail bending mold |
| CN111136139A (en) * | 2019-11-19 | 2020-05-12 | 宁波昌扬机械工业有限公司 | Intelligent numerical control stepless regulation and control bending machine with improved structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304385A (en) * | 2018-11-27 | 2019-02-05 | 意特利（滁州）智能数控科技有限公司 | A kind of bullodozer and its operation method |
| CN110814115A (en) * | 2019-10-18 | 2020-02-21 | 宁波敏实汽车零部件技术研发有限公司 | Mold core positioning mechanism of automobile sunroof guide rail bending mold |
| CN111136139A (en) * | 2019-11-19 | 2020-05-12 | 宁波昌扬机械工业有限公司 | Intelligent numerical control stepless regulation and control bending machine with improved structure |
| CN111136139B (en) * | 2019-11-19 | 2021-09-07 | 宁波昌扬机械工业有限公司 | Intelligent numerical control stepless regulation and control bending machine with improved structure |
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Application publication date: 20180810 |