CN105344769B - U-shaped metal piece machining equipment - Google Patents
U-shaped metal piece machining equipment Download PDFInfo
- Publication number
- CN105344769B CN105344769B CN201510789794.9A CN201510789794A CN105344769B CN 105344769 B CN105344769 B CN 105344769B CN 201510789794 A CN201510789794 A CN 201510789794A CN 105344769 B CN105344769 B CN 105344769B
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- push block
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- metalwork
- track
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- 239000002184 metal Substances 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 14
- 238000003754 machining Methods 0.000 title abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 126
- 238000005452 bending Methods 0.000 claims abstract description 24
- 238000007493 shaping process Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 31
- 238000003825 pressing Methods 0.000 claims description 29
- 238000007599 discharging Methods 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 241000416536 Euproctis pseudoconspersa Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000008439 repair process 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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
-
- 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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/22—Auxiliary equipment, e.g. positioning devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention relates to a U-shaped metal piece machining device which comprises a machining seat and a pushing block, wherein a machining cavity is arranged in the machining seat, an inlet and an outlet are formed in the machining cavity and opposite to the pushing block, a driving mechanism is arranged on the pushing block and used for pushing the pushing block into the machining cavity in a linear mode, the end portion, facing the inlet, of the pushing block serves as a pushing end for pushing a linear metal piece into the machining cavity, and a primary machining portion, a side edge shaping portion and a bending shaping portion are sequentially arranged in the machining cavity along the moving track of the pushing block. By adopting the scheme, the invention provides the processing equipment for the U-shaped metal piece, which is formed in one step and has high production efficiency.
Description
Technical field
The present invention relates to a kind of metalwork process equipment, and in particular to a kind of U-shaped metalwork process equipment.
Background technology
Used as a kind of metalwork of Common Shape, it is often applied to various industries, such as electric appliances shop to U-shaped metalwork
Industry.And the traditional processing mode of U-shaped metalwork is in advance, manually by linear metalwork by instrument bending, then to be put
Enter and carry out in mould shaping, mould is opened after the completion of shaping and is manually taken out, more the step of be related to due to it, invisible increased
The process time of U-shaped metalwork, reduce the working (machining) efficiency of U-shaped metalwork, and this small-sized U-shaped metalwork often demand adds
Work amount is all more huge, and improving work efficiency can greatly improve the performance of enterprises.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide the high U of a kind of one-shot forming, production efficiency
Shape metalwork process equipment.
For achieving the above object, the invention provides following technical scheme：It is characterized in that：Including processing seat and push
Block, is provided with processing cavity in described processing seat, described processing cavity is relatively set with import and export, described push with push block
Drive mechanism is provided with block push block straight line is pushed to into processing intracavity, described push block towards import end as will
Linear metalwork pushes the push end of processing cavity, and described processing intracavity is disposed with preliminary adding along push block motion track
The Ministry of worker, side shaping portion and bent reshaping portion, described initial processing portion includes the processing hole arranged along push block motion track,
It is provided with the side wall of linear metalwork inward at both ends lateral bend, institute with respect to the both sides of push block motion track in the processing hole
The side shaping portion for stating includes upper forming tank, and described push block is separately provided for respect to the both sides of push block motion track
Place U-shaped metalwork both sides side lower forming tank, described upper forming tank be oppositely arranged with lower forming tank and with lower forming tank
Respectively constitute the forming cavity being adapted with U-shaped metalwork both sides side edge shape, described bent reshaping portion include upper compressive plane, under
Compressive plane and front extruding curved surface, described front extruding curved surface is arranged at processing cavity away from the end of push block and towards push block
Push end to arrange, the end that pushes of described push block is provided with the rear extruding curved surface being adapted with front extruding curve form, described
Upper compressive plane and lower compressive plane respectively positioned at U-shaped metalwork composition over and under and U-shaped metalwork bending part shape phase
The clamping chamber of adaptation.
By adopting above-mentioned technical proposal, can be completed linear metalwork to U-shaped metal by the action of single push
All procedure of processings of part, it is relative before loaded down with trivial details procedure of processing, this processing mode time is short, efficiency high, needs plus man-hour,
Linear metalwork is first positioned over the push end front of push block, linear metalwork middle part is relative with push block middle part,
Its placing direction is perpendicular with push block motion track, and drive mechanism drives push block movement, push block to push away linear metal
Enter to import and export, through processing hole, process the side wall in hole carries out preliminary bending by the both sides of linear metalwork, is bent into U-shaped
Linear metal two ends are respectively placed in lower forming tank, are positioned, then, forming tank in arrival, upper forming tank and lower molding
Groove constitutes forming cavity and carries out shaping to U-shaped metalwork both sides, and finally, U-shaped metalwork is pushed to processing cavity end, its bending part
Its end face is squeezed into required arcwall face by front extruding curved surface, then completes all shaping steps by upper compressive plane and the extruding of lower compressive plane
Suddenly, above-mentioned drive mechanism can be various forms, and such as motor coordinates screw mandrel, cylinder, hydraulic cylinder etc..
The present invention is further arranged to：Described processing intracavity is provided with discharge component, and the discharge component includes discharging opening
And striker plate, described discharging opening be arranged at processing cavity lower section and with extraneous UNICOM, it is close that described striker plate is located at discharging opening
The end of push block is simultaneously correspondingly arranged with each lower forming tank respectively, and described striker plate one end is articulated with processing intracavity, the other end
Can vertically swing, described push block upward backs down the swinging end of striker plate into U-shaped metalwork during processing cavity, described
It is that its disengaging push block falls into discharging opening that the swinging end of striker plate offsets with U-shaped metalwork end when push block exits processing cavity.
By adopting above-mentioned technical proposal, discharge component the U-shaped metalwork after shaping is made during processing cavity is exited
Discharging is completed, next linear metal to be processed, further increase can be placed when making lower push block exit processing cavity
Work efficiency, the step of reduce staff's feeding, during reality processing, when push block pushes U-shaped metalwork through processing hole
Afterwards, because the rear of the relative striker plate of U-shaped metalwork is provided with push block as block piece, therefore the swinging end of striker plate is pushed up
Rise, pass through for U-shaped metalwork, and when push block exits processing cavity, two ends and the striker plate of U-shaped metalwork offset, due to lacking
Few block piece, U-shaped metalwork progressively disengages push block, until fall into discharging opening after completely disengaging from, the step of complete discharging, can be
Material frame is placed in discharging opening lower section, and the U-shaped metalwork after discharging for reception simultaneously carries out unifying to carry.
The present invention is further arranged to：Described processing seat is made up of upper processing seat and lower processing seat, described upper processing
The relative end face composition processing cavity of seat and lower processing seat, described processing seat is vertical respectively with respect to the both sides of push block motion track
Lead column is provided with, position corresponding with lead column is provided with the pilot hole passed through for lead column on described upper processing seat.
It is upper and lower two parts by the split of processing seat by adopting above-mentioned technical proposal, is easy to be keeped in repair to processing intracavity
Or change, machining failure is found out in time, and the cooperation of pilot hole and lead column makes to process seat and lower processing seat is easy for installation, puts
Install by putting, due to processing U-shaped metalwork without the need for much operating forces, therefore placing can keep stable.
The present invention is further arranged to：Push block motion track is provided with moving track on described lower processing seat, institute
The push block both sides stated are provided with sliding in the rail block of moving track.
By adopting above-mentioned technical proposal, arranging moving track makes the sliding of push block more stable, and it is more accurate to process.
The present invention is further arranged to：It is provided with described lower processing seat and avoids what U-shaped bending part work in-process was beated
Pressing mechanism, the pressing mechanism includes being located at the briquetting of push block motion track both sides, is provided with the briquetting and extends to U
Press section above shape bending part, the press surface of the lower surface of the press section as U-shaped bending part.
U-shaped bending part top is pressed on by adopting the press section of above-mentioned technical proposal, briquetting, it is to avoid U-shaped bending part
Work in-process is beated, it is to avoid U-shaped bending part work in-process is stuck in processing seat somewhere and hinders normal process, or causes to be imitated in shaping
Fruit declines, and increases defect rate.
The present invention is further arranged to：Described pressing mechanism also includes adjustment briquetting position and is arranged at lower processing seat
Pressing track, described pressing track is correspondingly arranged with each briquetting, and described pressing track is with respect to push block motion track
Horizontal vertical is arranged, and sliding is provided with described briquetting in the slipping part of pressing track, along pressing on described slipping part
Track is provided with strip through-hole, sliding is vertically provided with the strip through-hole in the installation bolt of strip through-hole, the installation bolt
Coordinate through strip through-hole and pressing track and with lower processing seat screw thread.
By adopting above-mentioned technical proposal, briquetting adjustment position on demand avoids hindering push block according to different situations
U-shaped metalwork is rationally pressed while mobile, makes use range wider, more practicality, after the completion of position adjustment, installation bolt
Fix with lower processing seat rotation through strip through-hole and pressing track.
With reference to the accompanying drawings and detailed description the invention will be further described.
Description of the drawings
Fig. 1 is the axonometric chart of the specific embodiment of the invention；
Fig. 2 is the axonometric chart one of lower processing seat in the specific embodiment of the invention；
Fig. 3 is the axonometric chart two of lower processing seat in the specific embodiment of the invention；
Fig. 4 is the axonometric chart of upper processing seat in the specific embodiment of the invention；
Fig. 5 is the enlarged drawing of A in Fig. 2；
Fig. 6 is the enlarged drawing of B in Fig. 2；
Fig. 7 is the three-dimensional cutaway view of the specific embodiment of the invention；
Fig. 8 is the enlarged drawing of C in Fig. 7.
Specific embodiment
As Figure 1-Figure 8, the invention discloses a kind of U-shaped metalwork process equipment, including processing seat 1 and push block
2, processing cavity 3 is provided with processing seat 1, processing cavity 3 is relatively set with import and export 31, drive is provided with push block 2 with push block 2
Motivation structure 21 pushes to the straight line of push block 2 in processing cavity 3, push block 2 towards import end as by linear metalwork
The push end 22 of processing cavity 3 is pushed, processing seat 1 is respectively arranged with linear metal placement platform 13 positioned at the both sides of push block 2, plus
Initial processing portion, side shaping portion and bent reshaping portion, initial processing are disposed with work chamber 3 along the motion track of push block 2
Portion includes the processing hole 32 arranged along the motion track of push block 2, sets with respect to the both sides of the motion track of push block 2 in the processing hole 32
It is equipped with the side wall 321 of linear metalwork inward at both ends lateral bend, side shaping portion includes upper forming tank 33, the phase of push block 2
The both sides of the motion track of push block 2 are separately provided for placing the lower forming tank 23 of U-shaped metalwork both sides side, upper molding
Groove 33 is oppositely arranged with lower forming tank 23 and respectively constitutes what is be adapted with U-shaped metalwork both sides side edge shape with lower forming tank 23
Forming cavity, bent reshaping portion includes upper compressive plane 35, lower compressive plane 36 and front extruding curved surface 34, and front extruding curved surface 34 is arranged at and adds
End of the work chamber 3 away from the push block 2 and push end 22 towards push block 2 is arranged, the push end 22 of push block 2 is arranged to be squeezed with front
The rear extruding curved surface 24 that the shape of face 34 of buckling is adapted, upper compressive plane 35 and lower compressive plane 36 are respectively positioned at the upper of U-shaped metalwork
Side and lower section constitute the clamping chamber being adapted with U-shaped metalwork bending part shape, and can be completed by the action of single push will be straight
All procedure of processings of metallic threadlike part to U-shaped metalwork, relative procedure of processing loaded down with trivial details before, this processing mode time
Short, efficiency high, needs plus man-hour, linear metalwork is first positioned over the front of push end 22 of push block 2, by linear metal
Part middle part is relative with the middle part of push block 2, and its placing direction is perpendicular with the motion track of push block 2, and drive mechanism 21 drives and pushes
Block 2 is moved, and linear metal is pushed import and export 31 by push block 2, through processing hole 32, processes the side wall 321 in hole 32 by straight line
The both sides of shape metalwork carry out preliminary bending, and the linear metal two ends for being bent into U-shaped are respectively placed in lower forming tank 23, carry out
Positioning, then, forming tank 33 in arrival, upper forming tank 33 constitutes forming cavity and U-shaped metalwork both sides is carried out with lower forming tank 23
Shaping, finally, U-shaped metalwork is pushed to the end of processing cavity 3, needed for its end face of its bending part is squeezed into by front extruding curved surface 34
Arcwall face, then all shaping steps are completed by upper compressive plane 35 and the extruding of lower compressive plane 36, above-mentioned drive mechanism 21 can be each
The form of kind, such as motor coordinate screw mandrel, cylinder, hydraulic cylinder etc., in the present invention preferred cylinder.
Discharge component is provided with processing cavity 3, the discharge component includes discharging opening 37 and striker plate 4, discharging opening 37 is arranged
In the lower section of processing cavity 3 and with extraneous UNICOM, striker plate 4 be located at discharging opening 37 near the end of push block 2 and respectively with it is each it is lower into
Type groove 23 is correspondingly arranged, and the one end of striker plate 4 is articulated with processing cavity 3, and the other end can vertically swing, and push block 2 enters processing cavity 3
When U-shaped metalwork the swinging end of striker plate 4 is backed down upward, the swinging end and U of striker plate 4 when push block 2 exits processing cavity 3
Shape metalwork end offsets and disengages it from push block 2 and fall into discharging opening 37, and discharge component is exiting the U-shaped metalwork after shaping
Discharging is completed during processing cavity 3, next one straight line metal to be processed can be placed when push block 2 exits processing cavity 3
Part, further increases work efficiency, the step of reduce staff's feeding, during reality processing, when push block 2 pushes U-shaped gold
After category part is through processing hole 32, because the rear of the relative striker plate 4 of U-shaped metalwork is provided with push block 2 as block piece, therefore gear
The swinging end of flitch 4 is passed through by jack-up for U-shaped metalwork, and when push block 2 exits processing cavity 3, the two ends of U-shaped metalwork
Offset with striker plate 4, due to lacking block piece, U-shaped metalwork progressively disengages push block 2, until falling into discharging after completely disengaging from
Mouth 37, completes the step of discharging, and material frame can be placed below discharging opening, is simultaneously united for receiving the U-shaped metalwork after discharging
One carries.
Processing seat 1 is made up of upper processing seat 11 and lower processing seat 12, above-mentioned upper forming tank 33 positioned at processing cavity 3 and on
Compressive plane 35 is located at processing seat 11, and remaining may be contained within lower processing seat 12, the relative end face of upper processing seat 11 and lower processing seat 12
Composition processing cavity 3, the both sides of lower processing seat 12 motion track of push block 2 relatively are vertically provided with respectively lead column 121, upper processing
Position corresponding with lead column is provided with the pilot hole 111 passed through for lead column 121 on seat 11, is upper and lower by the processing split of seat 1
Two parts, are easy to repairing or replacing in processing cavity 3, find out machining failure in time, and pilot hole 111 and lead column 121
Cooperation make to process seat 11 and lower processing seat 12 is easy for installation, placing to install, due to processing U-shaped metalwork without the need for much
Operating force, therefore placing can keep stable.
The motion track of push block 2 is provided with moving track 122 on lower processing seat 12, the both sides of push block 2 are provided with sliding
In the rail block 25 of moving track, arranging moving track 122 makes the sliding of push block 2 more stable, and it is more accurate to process.
The pressing mechanism for avoiding U-shaped bending part work in-process from beating is provided with lower processing seat 12, the pressing mechanism includes
Positioned at the briquetting 5 of the motion track both sides of push block 2, the press section extended to above U-shaped bending part is provided with the briquetting
51, the lower surface of the press section 51 as U-shaped bending part press surface, to make the more compact upper processing seat 11 of structure be provided with confession
The breach that press section is stretched into, the press section 51 of briquetting 5 presses on U-shaped bending part top, it is to avoid U-shaped bending part work in-process is jumped
It is dynamic, it is to avoid U-shaped bending part work in-process is stuck in processing seat 1 somewhere and hinders normal process, or causes to decline in shaping effect, increases
Plus defect rate.
Pressing mechanism also includes adjustment briquetting position and is arranged at the pressing track 123 of lower processing seat 12, pressing track
123 are correspondingly arranged with each briquetting 5, and the relative motion track horizontal vertical of push block 2 of pressing track 123 is arranged, and is set in briquetting 5
Sliding is equipped with the slipping part 52 of pressing track 123, pressing track 123 is provided with strip through-hole 521 on slipping part 52, this
Sliding is vertically provided with the installation bolt 522 of strip through-hole in shape through hole 521, the installation bolt 522 through strip through-hole and
Pressing track 123 simultaneously coordinates with lower processing seat 12 screw thread, the adjustment position on demand of briquetting 5, is avoided hindering according to different situations
U-shaped metalwork is rationally pressed while push block 2 is moved, use range is wider, more practicality, after the completion of position adjustment, peace
Dress bolt 522 is fixed through strip through-hole and pressing track 123 with lower processing seat 12 rotation.
Claims (6)
1. a kind of U-shaped metalwork process equipment, it is characterised in that：Including processing seat and push block, arrange in described processing seat
There is processing cavity, described processing cavity is relatively set with import and export with push block, drive mechanism is provided with described push block will
Push block straight line pushes to processing intracavity, and described push block pushes processing towards the end of import as by linear metalwork
The push end in chamber, described processing intracavity is disposed with initial processing portion, side shaping portion and folding along push block motion track
Curved shaping portion, described initial processing portion includes the processing hole arranged along push block motion track, relative in the processing hole to push
The both sides of block motion track are provided with the side wall of linear metalwork inward at both ends lateral bend, and described side shaping portion includes
Upper forming tank, described push block is separately provided for placing U-shaped metalwork both sides with respect to the both sides of push block motion track
The lower forming tank of side, described upper forming tank is oppositely arranged with lower forming tank and respectively constitutes and U-shaped metal with lower forming tank
The forming cavity that part both sides side edge shape is adapted, described bent reshaping portion includes that upper compressive plane, lower compressive plane and front extruding are bent
Face, described front extruding curved surface is arranged at end of the processing cavity away from push block and the push end towards push block and arranges, described
The end that pushes of push block be provided with and the front extruding rear extruding curved surface that is adapted of curve form, described upper compressive plane and lower squeeze
Pressure surface is respectively positioned at the clamping chamber that over and under composition is adapted with U-shaped metalwork bending part shape of U-shaped metalwork.
2. U-shaped metalwork process equipment according to claim 1, it is characterised in that：Described processing intracavity is provided with out
Material component, the discharge component includes discharging opening and striker plate, described discharging opening be arranged at processing cavity lower section and with extraneous UNICOM,
Described striker plate is correspondingly arranged positioned at discharging opening near the end of push block and respectively with each lower forming tank, described striker plate
One end is articulated with processing intracavity, and the other end can vertically swing, and U-shaped metalwork is by striker plate when described push block enters processing cavity
Swinging end back down upward, the swinging end of striker plate offsets with U-shaped metalwork end when described push block exits processing cavity
Disengage it from push block and fall into discharging opening.
3. U-shaped metalwork process equipment according to claim 1, it is characterised in that：Described processing seat is by upper processing seat
Constitute with lower processing seat, the relative end face composition processing cavity of described upper processing seat and lower processing seat, described processing seat is relative
The both sides of push block motion track are vertically provided with respectively lead column, and position corresponding with lead column sets on described upper processing seat
It is equipped with the pilot hole passed through for lead column.
4. U-shaped metalwork process equipment according to claim 3, it is characterised in that：Along push on described lower processing seat
Block motion track is provided with moving track, and described push block both sides are provided with sliding in the rail block of moving track.
5. U-shaped metalwork process equipment according to claim 3, it is characterised in that：It is provided with described lower processing seat
Avoid U-shaped bending part work in-process beat pressing mechanism, the pressing mechanism include be located at push block motion track both sides by
Briquetting, is provided with the press section extended to above U-shaped bending part in the briquetting, the lower surface of the press section is used as U-shaped bending
The press surface of part.
6. U-shaped metalwork process equipment according to claim 5, it is characterised in that：Described pressing mechanism also includes adjusting
Whole briquetting position is simultaneously arranged at the lower pressing track for processing seat, and described pressing track is correspondingly arranged with each briquetting, described
Pressing track arrange with respect to push block motion track horizontal vertical, sliding is provided with described briquetting in pressing track
Slipping part, strip through-hole is provided with described slipping part along pressing track, and sliding is vertically provided with the strip through-hole in bar
The installation bolt of shape through hole, the installation bolt coordinates through strip through-hole and pressing track and with lower processing seat screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510789794.9A CN105344769B (en) | 2015-11-17 | 2015-11-17 | U-shaped metal piece machining equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510789794.9A CN105344769B (en) | 2015-11-17 | 2015-11-17 | U-shaped metal piece machining equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105344769A CN105344769A (en) | 2016-02-24 |
| CN105344769B true CN105344769B (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510789794.9A Active CN105344769B (en) | 2015-11-17 | 2015-11-17 | U-shaped metal piece machining equipment |
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| CN (1) | CN105344769B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680635A (en) * | 2016-03-09 | 2016-06-15 | 泰信电机(苏州)有限公司 | Motor core bending machine |
| CN110371643B (en) * | 2018-04-12 | 2021-03-26 | 武汉中科锐择光电科技有限公司 | Automatic clamping and loosening device for feeding connection |
| CN114433682A (en) * | 2021-12-29 | 2022-05-06 | 云路复合材料(上海)有限公司 | U-shaped bending equipment for special-shaped curved surface |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB901956A (en) * | 1957-06-07 | 1962-07-25 | Redman Toole And Products Ltd | Improvements in or relating to metal-working machines |
| DE2341857C2 (en) * | 1973-08-18 | 1975-10-02 | Hermann Mueller Gmbh, 4630 Bochum | Tool arrangement for the production of pipe bends |
| US4748707A (en) * | 1986-06-20 | 1988-06-07 | Gray John C | Production of threaded metal rods for making U-bolts |
| CN2470023Y (en) * | 2001-06-20 | 2002-01-09 | 曹云明 | Novel bending machine |
| CN201693037U (en) * | 2010-07-07 | 2011-01-05 | 潍坊奥腾冷弯机械有限公司 | Plane bend circle forming machine |
| CN202398676U (en) * | 2012-01-10 | 2012-08-29 | 五莲县百盛机械有限公司 | Profile steel push-bending machine |
| CN202779322U (en) * | 2012-10-09 | 2013-03-13 | 无锡市兆帕科技有限公司 | Hydraulic pipe bender |
| CN205165466U (en) * | 2015-11-17 | 2016-04-20 | 浙江瑞申汽配有限公司 | U-shaped metal piece machining equipment |
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2015
- 2015-11-17 CN CN201510789794.9A patent/CN105344769B/en active Active
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| CN105344769A (en) | 2016-02-24 |
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