CN108067541B - Oil pressure piercing press for U-shaped pipe - Google Patents
Oil pressure piercing press for U-shaped pipe Download PDFInfo
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- CN108067541B CN108067541B CN201611020902.7A CN201611020902A CN108067541B CN 108067541 B CN108067541 B CN 108067541B CN 201611020902 A CN201611020902 A CN 201611020902A CN 108067541 B CN108067541 B CN 108067541B
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- lining pipe
- plc
- electrically connected
- positioning
- lining
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- 230000007246 mechanism Effects 0.000 claims abstract description 57
- 238000004080 punching Methods 0.000 claims abstract description 33
- 230000001133 acceleration Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
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- 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
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- 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
- B21D28/24—Perforating, i.e. punching holes
- B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- 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
- B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses an oil pressure punching machine for a U-shaped pipe, which comprises a rack and is characterized in that a pair of axial positioning baffle rings are arranged on the rack, a pair of clamping mechanisms are arranged on one side of the axial positioning baffle rings on the rack, a plurality of punching oil cylinders are arranged between the axial positioning baffle rings and the clamping mechanisms on the rack, a control table is arranged on the rack and comprises a PLC (programmable logic controller), and the clamping mechanisms and the punching oil cylinders are electrically connected with the PLC.
Description
Technical Field
The invention belongs to the field of special processing equipment, and particularly relates to an oil pressure punching machine for a U-shaped pipe.
Background
A U-shaped pipe is generally used as a support member, which includes two vertical pipes parallel to each other and having an equal length and a horizontal pipe connecting ends of the two vertical pipes. A plurality of holes are required to be processed on the two vertical pipes along the length direction of the vertical pipes, and the axial directions of all the holes are required to be ensured to be parallel to the length direction of the transverse pipe.
The prior art machining of these holes requires the following steps: (1) a worker inserts one vertical pipe into the punching machine, swings the other vertical pipe around the axis of the vertical pipe, and enables the punching direction to be parallel to the length direction of the transverse pipe through visual inspection or by utilizing a positioning device; (2) the punching machine is operated, holes are machined one by one, and after each hole is machined, the U-shaped pipe is moved once and repositioned once by a worker; (3) a worker turns over the U-shaped pipe and processes a hole in the other vertical pipe, and the processing steps are the same as the above; (4) some punching machines also require personnel to push the liner tube into the U-shaped tube.
Therefore, the processing needs to be performed for multiple times of positioning, accumulated errors are generated, and the errors are large, so that improvement is needed.
disclosure of Invention
Aiming at the defects of the prior art, the invention provides the oil pressure punching machine for the U-shaped pipe, which has small error and high efficiency.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an oil pressure piercing press for U-shaped pipe, includes the frame, be equipped with a pair of axial positioning in the frame and keep off the ring, the frame is equipped with a pair of clamping mechanism in one side that axial positioning kept off the ring, the frame is equipped with a plurality of hydro-cylinders that punch a hole between axial positioning keeps off ring and clamping mechanism, be equipped with the control cabinet in the frame, the control cabinet includes PLC programmable logic controller, clamping mechanism and the hydro-cylinder that punches a hole all are connected with PLC programmable logic controller electricity.
Furthermore, the frame is provided with a pair of lining pipe sliding rails on one side of the axial positioning retaining ring away from the clamping mechanism, and the lining pipe sliding rails are provided with V-shaped grooves for positioning the lining pipes.
Further, a lining pipe pushing mechanism which is used for pushing the lining pipe into the U-shaped pipe through the axial positioning retaining ring is arranged on the lining pipe sliding rail and electrically connected with the PLC.
Further, a lining pipe feeding device is arranged above the machine frame corresponding to the lining pipe sliding rail and is electrically connected with the PLC.
Further, the lining pipe feeding device comprises a hopper and a feeding plate hinged or connected with the hopper in a sliding mode, the feeding plate is connected with a third pressure cylinder driving the feeding plate to rotate or slide, and the third pressure cylinder is electrically connected with the PLC.
Further, the machine frame is provided with a lining pipe positioning mechanism at a position corresponding to the lining pipe pushing mechanism, and the lining pipe positioning mechanism is electrically connected with the PLC.
further, the lining pipe pushing mechanism comprises a lining pipe pushing shaft, a first linear motor or a stepping motor is arranged between the lining pipe pushing shaft and the lining pipe sliding rail, and the first linear motor or the stepping motor is electrically connected with the PLC.
Furthermore, a positioning hole is formed in the lining pipe pushing shaft, the lining pipe positioning mechanism comprises a positioning rod and a first pressure cylinder or a second linear motor for driving the positioning rod to be inserted into the positioning hole, and the first pressure cylinder or the second linear motor is electrically connected with the PLC.
Furthermore, the clamping mechanism comprises two clamping blocks which are oppositely arranged, arc-shaped clamping parts are arranged on two opposite sides of the two clamping blocks, the clamping blocks are connected with a second pressure cylinder or a third linear motor, and the second pressure cylinder or the third linear motor is electrically connected with the PLC.
In conclusion, the two vertical pipes of the U-shaped pipe are respectively aligned to the clamping mechanisms to be inserted by the worker, the axial positioning retaining ring is used for axially positioning the vertical pipes, then the two clamping mechanisms are simultaneously clamped, the U-shaped pipe is comprehensively positioned, and the degree of freedom is zero; then the lining pipe feeding device releases the lining pipe, the lining pipe falls on the lining pipe slide rail, and the lining pipe pushing mechanism pushes the lining pipe into the U-shaped pipe to a certain depth through the axial positioning retaining ring; then, the punching oil cylinders work correspondingly, and two vertical pipes of the U-shaped pipe are punched simultaneously; only need once fix a position like this, the error reduces greatly, and the staff with the U-shaped pipe axial propelling movement after target in place, needn't operate and monitor beside the machine, it is very few to take man-hour, production efficiency improves greatly.
Drawings
FIG. 1 is a front view of an oil hydraulic punch for U-shaped tubes according to the present invention;
FIG. 2 is a side view of an oil hydraulic punch for a U-shaped tube according to the present invention;
FIG. 3 is a top view of an oil hydraulic punch for U-shaped tubes according to the present invention;
FIG. 4 is a schematic three-dimensional view of an oil hydraulic punching machine for U-shaped tubes according to the present invention;
FIG. 5 is an enlarged view of A in FIG. 4;
FIG. 6 is a schematic view showing a liner tube pushing shaft in the oil hydraulic punch for a U-shaped tube according to the present invention;
FIG. 7 is a schematic view of a clamping block of the oil hydraulic punch for U-shaped tubes according to the present invention;
FIG. 8 is a schematic view of a hopper of the oil hydraulic punch for U-shaped tubes according to the present invention.
Description of the drawings: 1. a frame; 2. an axial positioning retaining ring; 3. a clamping mechanism; 4. a lining pipe feeding device; 5. a lining pipe slide rail; 6. a liner tube advancing mechanism; 7. punching an oil cylinder; 8. a lining pipe positioning mechanism; 9. a liner tube propulsion shaft; 10. a first linear motor; 11. positioning holes; 12. positioning a rod; 13. a first pressure cylinder; 14. a clamping block; 15. a clamping portion; 16. a hopper; 17. feeding plates; 18. a third pressure cylinder; 19. a U-shaped tube.
Detailed Description
An embodiment of the oil hydraulic punch for U-shaped tubes according to the present invention will be further described with reference to fig. 1 to 8.
An oil pressure punching machine for U-shaped pipes comprises a frame 1, wherein a pair of axial positioning baffle rings 2 are arranged on the frame 1, a pair of clamping mechanisms 3 is arranged on one side of the axial positioning baffle ring 2 of the machine frame 1, a pair of lining pipe feeding devices 4 is arranged on the other side of the axial positioning baffle ring 2 of the machine frame 1, the frame 1 is provided with an inner lining pipe slide rail 5 at the position below the inner lining pipe feeding device 4 and abutted against the axial positioning baffle ring 2, a lining pipe pushing mechanism 6 which pushes the lining pipe into the U-shaped pipe 19 through the axial positioning baffle ring 2 is arranged in the lining pipe slide rail 5, a plurality of punching oil cylinders 7 are arranged between the axial positioning baffle ring 2 and the clamping mechanism 3 of the frame 1, a control console is arranged on the machine frame 1 and comprises a PLC programmable logic controller, and the clamping mechanism 3, the lining pipe feeding device 4, the lining pipe pushing mechanism 6 and the punching oil cylinder 7 are all electrically connected with a PLC (programmable logic controller).
By adopting the technical scheme, a worker inserts the two vertical pipes of the U-shaped pipe 19 into the clamping mechanisms 3 respectively in an aligning manner, the two vertical pipes are axially positioned by the axial positioning baffle ring 2, then the two clamping mechanisms 3 are simultaneously clamped, the U-shaped pipe 19 is comprehensively positioned, and the degree of freedom is zero; then the lining pipe feeding device 4 releases the lining pipe, the lining pipe falls on the lining pipe slide rail 5, and the lining pipe pushing mechanism 6 pushes the lining pipe into the U-shaped pipe 19 to a certain depth through the axial positioning baffle ring 2; then, the punching oil cylinders 7 with the corresponding number work to simultaneously punch two vertical pipes of the U-shaped pipe 19; therefore, only one-time positioning is needed, the error is greatly reduced, and after the U-shaped pipe 19 is pushed in place axially by a worker, the worker does not need to operate and monitor beside a machine, the working hours are small, and the production efficiency is greatly improved.
The plurality of punching oil cylinders 7 comprise a first punching oil cylinder 7, a second punching oil cylinder 7 and the like.
In this embodiment, preferably, the frame 1 is provided with a lining tube positioning mechanism 8 at a position corresponding to the lining tube pushing mechanism 6, and the lining tube positioning mechanism 8 is electrically connected to the PLC.
By adopting the technical scheme, the inner lining pipe positioning mechanism 8 can position the axial position of the inner lining pipe, after the inner lining pipe pushing mechanism 6 pushes the inner lining pipe into the U-shaped pipe 19, the inner lining pipe positioning mechanism 8 detects the depth of the inner lining pipe entering the U-shaped pipe 19, sends a signal to the PLC after reaching the specified depth, and then drives the punching oil cylinder 7 to punch a hole, otherwise, the punching oil cylinder 7 does not obtain a punching signal, so that the punching action is not carried out, and the protection effect is achieved.
In this embodiment, the lining pipe pushing mechanism 6 preferably includes a lining pipe pushing shaft 9, a first linear motor 10 is disposed between the lining pipe pushing shaft 9 and the lining pipe sliding rail 5, and the first linear motor 10 is electrically connected to the PLC.
by adopting the technical scheme, after the lining pipe falls on the lining pipe slide rail 5, the lining pipe pushing shaft 9 is abutted against the end part of the lining pipe, then the first linear motor 10 is started, and the lining pipe pushing shaft 9 pushes the lining pipe to pass through the axial positioning baffle ring 2 and enter the U-shaped pipe 19 by a specified depth; the linear motor has the advantages of compact structure, small power loss, high fast moving speed, high acceleration, adjustable speed and high precision, and is beneficial to realizing automation.
Or, the lining pipe pushing mechanism 6 comprises a lining pipe pushing shaft 9, a stepping motor is arranged between the lining pipe pushing shaft 9 and the lining pipe sliding rail 5, and the stepping motor is electrically connected with the PLC.
by adopting the technical scheme, the function of the stepping motor is the same as that of the first linear motor 10, but the stepping motor has stronger anti-interference capability, no long-term accumulation of errors and good control performance.
In this embodiment, the lining tube pushing shaft 9 is preferably provided with a positioning hole 11, the lining tube positioning mechanism 8 includes a positioning rod 12 and a first pressure cylinder 13 for driving the positioning rod 12 to be inserted into the positioning hole 11, and the first pressure cylinder 13 is electrically connected to the PLC.
By adopting the technical scheme, after the lining pipe pushing mechanism 6 pushes the lining pipe into the U-shaped pipe 19 and stops running, the first pressure cylinder 13 drives the positioning rod 12 to extend out, if the positioning rod 12 can be inserted into the positioning hole 11 (the extending distance of the positioning rod 12 is longer, the positioning rod can be monitored by a sensor or a proximity switch), namely the lining pipe reaches a specified depth and then sends a signal to the PLC, and then the punching oil cylinder 7 is driven to punch a hole; if the positioning rod 12 cannot be inserted into the positioning hole 11, the lining pipe does not reach the designated depth, the punching oil cylinder 7 cannot obtain a punching signal, and the punching operation cannot be performed, so that the protection effect is achieved.
the first pressure cylinder 13 can be a hydraulic cylinder or a pneumatic cylinder, and a pressure relief valve can be connected in series on an oil path where the first pressure cylinder 13 is located to play a role in overload protection.
Or, the lining pipe pushing shaft 9 is provided with a positioning hole 11, the lining pipe positioning mechanism 8 comprises a positioning rod 12 and a second linear motor for driving the positioning rod 12 to be inserted into the positioning hole 11, and the second linear motor is electrically connected with the PLC.
Through adopting above-mentioned technical scheme, the second linear electric motor provides the same function with first pressure cylinder 13 for the piercing press, and the difference is, linear electric motor compact structure, power loss are little, fast move speed height, acceleration height, adjustable speed, precision height, are favorable to realizing the automation.
Preferably, in this embodiment, the clamping mechanism 3 includes two clamping blocks 14 disposed oppositely, the two clamping blocks 14 are provided with arc-shaped clamping portions 15 on two opposite sides, and the second pressure cylinder is connected to the clamping block 14 and electrically connected to the PLC.
By adopting the technical scheme, after the U-shaped pipe 19 is axially positioned by the axial positioning baffle ring 2, the second pressure cylinder drives the two clamping blocks 14 to be close to each other, and the arc-shaped clamping part 15 is beneficial to increasing the holding degree of the vertical pipe and positioning and clamping; the second pressure cylinder is large in speed adjustable range, small in size, small in inertia, compact in structure, capable of transmitting large force or torque, stable in work, small in impact, and capable of being started, braked and reversed at high speed.
Or, the clamping mechanism 3 includes two clamping blocks 14 disposed oppositely, the two clamping blocks 14 are provided with arc-shaped clamping portions 15 on two opposite sides, the clamping blocks 14 are connected with a third linear motor, and the third linear motor is electrically connected with the PLC.
Through adopting above-mentioned technical scheme, the third linear electric motor provides the same function with the second pressure cylinder for the piercing press, and the difference is, linear electric motor compact structure, power loss are little, fast move speed height, acceleration height, adjustable speed, precision height, are favorable to realizing the automation.
In the preferred embodiment, the lining pipe feeding device 4 comprises a hopper 16 and a feeding plate 17 hinged to the hopper 16, the feeding plate 17 is connected with a third pressure cylinder 18 for driving the feeding plate to rotate, and the third pressure cylinder 18 is electrically connected with a PLC programmable logic controller.
By adopting the technical scheme, after the U-shaped pipe 19 is positioned comprehensively, the third pressure cylinder 18 acts, the feeding plate 17 rotates to release one lining pipe, the lining pipe falls on the lining pipe slide rail 5, and the lining pipe is pushed into the U-shaped pipe 19 by a specified depth through the axial positioning baffle ring 2 by the lining pipe pushing mechanism 6; then, the punching oil cylinders 7 with the corresponding number work to simultaneously punch two vertical pipes of the U-shaped pipe 19; the third pressure cylinder 18 is controlled by a PLC programmable logic controller, so that timing expansion and contraction can be realized, and only one lining pipe is released during each expansion and contraction; the upper material plate 17 hinged to the hopper 16 occupies less space in the horizontal direction.
or, the lining pipe feeding device 4 comprises a hopper 16 and a feeding plate 17 connected with the hopper 16 in a sliding manner, the feeding plate 17 is connected with a third pressure cylinder 18 driving the feeding plate to slide, and the third pressure cylinder 18 is electrically connected with the PLC.
By adopting the technical scheme, the material feeding plate 17 connected with the hopper 16 in a sliding manner occupies less space in the vertical direction.
In summary, the worker inserts the two vertical tubes of the U-shaped tube 19 into the clamping mechanisms 3 respectively, positions the two vertical tubes axially by the axial positioning baffle ring 2, then clamps the two clamping mechanisms 3 simultaneously, and positions the U-shaped tube 19 comprehensively with zero degree of freedom; then the lining pipe feeding device 4 releases the lining pipe, the lining pipe falls on the lining pipe slide rail 5, and the lining pipe pushing mechanism 6 pushes the lining pipe into the U-shaped pipe 19 to a certain depth through the axial positioning baffle ring 2; then, the punching oil cylinders 7 with the corresponding number work to simultaneously punch two vertical pipes of the U-shaped pipe 19; therefore, only one-time positioning is needed, the error is greatly reduced, and after the U-shaped pipe 19 is pushed in place axially by a worker, the worker does not need to operate and monitor beside a machine, the working hours are small, and the production efficiency is greatly improved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (2)
1. An oil pressure punching machine for U-shaped pipes comprises a machine frame and is characterized in that a pair of axial positioning baffle rings are arranged on the machine frame, a pair of clamping mechanisms are arranged on one side of the axial positioning baffle rings on the machine frame, a plurality of punching oil cylinders are arranged between the axial positioning baffle rings and the clamping mechanisms on the machine frame, a control console is arranged on the machine frame and comprises a PLC (programmable logic controller), the clamping mechanisms and the punching oil cylinders are electrically connected with the PLC, a pair of lining pipe sliding rails are arranged on one side, away from the clamping mechanisms, of the axial positioning baffle rings on the machine frame, V-shaped grooves for positioning lining pipes are arranged on the lining pipe sliding rails, lining pipe pushing mechanisms for pushing the lining pipes into the U-shaped pipes through the axial positioning baffle rings are arranged on the lining pipe sliding rails, the lining pipe pushing mechanisms are electrically connected with the PLC, and a pipe feeding device is arranged above the corresponding lining pipe sliding rails on the machine frame, the lining pipe feeding device is electrically connected with the PLC, the lining pipe feeding device comprises a hopper and a feeding plate hinged or slidably connected with the hopper, the feeding plate is connected with a third pressure cylinder driving the feeding plate to rotate or slide, the third pressure cylinder is electrically connected with the PLC, a machine frame is provided with a lining pipe positioning mechanism at a position corresponding to the lining pipe pushing mechanism, the lining pipe positioning mechanism is electrically connected with the PLC, the lining pipe pushing mechanism comprises a lining pipe pushing shaft, a first linear motor or a stepping motor is arranged between the lining pipe pushing shaft and a lining pipe sliding rail, the first linear motor or the stepping motor is electrically connected with the PLC, the lining pipe pushing shaft is provided with a positioning hole, and the lining pipe positioning mechanism comprises a positioning rod and a first pressure cylinder or a second linear motor driving the positioning rod to be inserted into the positioning hole, and the first pressure cylinder or the second linear motor is electrically connected with the PLC.
2. The oil-pressure punching machine for U-shaped tubes according to claim 1, wherein the clamping mechanism comprises two clamping blocks arranged oppositely, the two clamping blocks are provided with arc-shaped clamping parts on two opposite sides, the clamping blocks are connected with a second pressure cylinder or a third linear motor, and the second pressure cylinder or the third linear motor is electrically connected with a PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611020902.7A CN108067541B (en) | 2016-11-15 | 2016-11-15 | Oil pressure piercing press for U-shaped pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611020902.7A CN108067541B (en) | 2016-11-15 | 2016-11-15 | Oil pressure piercing press for U-shaped pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108067541A CN108067541A (en) | 2018-05-25 |
| CN108067541B true CN108067541B (en) | 2019-12-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611020902.7A Active CN108067541B (en) | 2016-11-15 | 2016-11-15 | Oil pressure piercing press for U-shaped pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108067541B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005002588U1 (en) * | 2005-02-17 | 2005-05-19 | Dsb Binding Corp., Tou Liu | Paper punch, comprising twin stamps and paper positioning area in shape of inverted U |
| CN201366616Y (en) * | 2009-01-22 | 2009-12-23 | 庄添财 | Tube fitting automatic manufacturing device |
| CN102921796A (en) * | 2012-11-06 | 2013-02-13 | 保定天威集团有限公司 | Method for blanking U-shaped side holes on upper and lower sides of round tube simultaneously and dedicated die |
| CN204353300U (en) * | 2014-12-11 | 2015-05-27 | 嘉兴市永事达五金有限公司 | The U-shaped hand-held rod punching formation device of luggage case |
| CN105537389A (en) * | 2016-01-22 | 2016-05-04 | 佛山市天箭机械设备有限公司 | Core insert punching mechanism of tube bending machine |
| CN206276780U (en) * | 2016-11-15 | 2017-06-27 | 浙江友谊菲诺伞业有限公司 | U-tube oil pressure punch machine |
-
2016
- 2016-11-15 CN CN201611020902.7A patent/CN108067541B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005002588U1 (en) * | 2005-02-17 | 2005-05-19 | Dsb Binding Corp., Tou Liu | Paper punch, comprising twin stamps and paper positioning area in shape of inverted U |
| CN201366616Y (en) * | 2009-01-22 | 2009-12-23 | 庄添财 | Tube fitting automatic manufacturing device |
| CN102921796A (en) * | 2012-11-06 | 2013-02-13 | 保定天威集团有限公司 | Method for blanking U-shaped side holes on upper and lower sides of round tube simultaneously and dedicated die |
| CN204353300U (en) * | 2014-12-11 | 2015-05-27 | 嘉兴市永事达五金有限公司 | The U-shaped hand-held rod punching formation device of luggage case |
| CN105537389A (en) * | 2016-01-22 | 2016-05-04 | 佛山市天箭机械设备有限公司 | Core insert punching mechanism of tube bending machine |
| CN206276780U (en) * | 2016-11-15 | 2017-06-27 | 浙江友谊菲诺伞业有限公司 | U-tube oil pressure punch machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108067541A (en) | 2018-05-25 |
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| CB02 | Change of applicant information |
Address after: 312365 Industrial Development Zone of Songxia Town, Shangyu District, Shaoxing City, Zhejiang Province Applicant after: Zhejiang Friendship Fino Umbrella Industry Co.,Ltd. Address before: 312365 Industrial Development Zone of Songxia Town, Shangyu District, Shaoxing City, Zhejiang Province Applicant before: ZHEJIANG FRIENDSHIP FEINUO UMBRELLA Co.,Ltd. |
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Hydraulic punching machine for U-shaped pipe Effective date of registration: 20221011 Granted publication date: 20191213 Pledgee: Bank of China Limited Shangyu sub branch Pledgor: Zhejiang Friendship Fino Umbrella Industry Co.,Ltd. Registration number: Y2022330002524 |
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Date of cancellation: 20231120 Granted publication date: 20191213 Pledgee: Bank of China Limited Shangyu sub branch Pledgor: Zhejiang Friendship Fino Umbrella Industry Co.,Ltd. Registration number: Y2022330002524 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |