CN113427239A - Special bucking machine for gas shield welding gun - Google Patents
Special bucking machine for gas shield welding gun Download PDFInfo
- Publication number
- CN113427239A CN113427239A CN202110646699.9A CN202110646699A CN113427239A CN 113427239 A CN113427239 A CN 113427239A CN 202110646699 A CN202110646699 A CN 202110646699A CN 113427239 A CN113427239 A CN 113427239A
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- oil cylinder
- buckling
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- piston
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- 238000003466 welding Methods 0.000 title claims abstract description 22
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 37
- 238000005520 cutting process Methods 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 abstract description 14
- 239000003921 oil Substances 0.000 description 49
- 238000002788 crimping Methods 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 5
- 238000010030 laminating Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a special buckling and pressing machine for a gas shielded welding gun, which comprises a control unit, a power unit and an execution unit, wherein the control unit, the power unit and the execution unit are installed on a case, the power unit is a hydraulic station, the execution unit comprises a buckling oil cylinder and a core-pulling oil cylinder, the buckling oil cylinder comprises a buckling oil cylinder barrel, the buckling oil cylinder barrel is fixedly connected with the case, two ends of the buckling oil cylinder barrel are respectively and fixedly connected with a mounting plate and a front flange, the bottom of the buckling oil cylinder barrel is provided with a first oil hole and a second oil hole in a penetrating manner, the inner wall of the buckling oil cylinder barrel is connected with a cone piston in a sliding manner, and a first inner cavity is formed between the cone piston and the buckling oil cylinder barrel; the invention can simultaneously realize the one-stop operation of the steps of core adding, buckling position positioning, buckling and core pulling in the buckling connection of the connecting rod joint and the gun barrel by arranging the buckling oil cylinder barrel, the cone piston, the single-cone die holder, the die, the core pulling oil cylinder, the core supporting and the like, thereby greatly improving the processing efficiency.
Description
Technical Field
The invention relates to a crimping machine, in particular to a crimping machine special for a gas shield welding gun.
Background
Gas shield welding is an important welding form, and has quite wide application in the industrial field due to the advantages of high welding speed, small deformation, simple operation and the like.
The gas shield welding gun is an essential tool in gas shield welding, the using amount is very large, and a plurality of processes are guaranteed in the manufacturing process from parts to the welding gun. Currently, in the manufacturing process of connecting the connecting rod connector 25 and the barrel 26 in the welding gun, the connecting rod connector 25 needs to be placed into the barrel 26, and the crimping outer tube 27 is crimped by the crimping machine, so that the connecting rod connector 25 and the barrel 26 are crimped and connected into a whole. In order to avoid the shrinkage of the inner hole of the connecting rod joint 25 due to buckling in the buckling process, thereby influencing the subsequent assembly and use, a supporting inner core needs to be placed in advance in the buckling process so as to ensure the size of the inner hole of the connecting rod joint 25 in the buckling process. After the buckling is finished, the supporting inner core is pulled out by using a special core pulling device.
The buckling and pressing of the connecting rod joint 25 and the gun barrel 26 are performed in two different processes, two different devices are needed, a series of problems such as workpiece transfer exist, the processing efficiency is low, the operation is complex, and improvement is needed.
Disclosure of Invention
The invention aims to provide a special crimping machine for a gas shield welding gun, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the special buckling and pressing machine for the gas-shielded welding gun comprises a control unit, a power unit and an execution unit which are installed on a machine case, wherein the power unit is a hydraulic station, the execution unit comprises a buckling and pressing oil cylinder and a core pulling oil cylinder, the buckling and pressing oil cylinder comprises a buckling and pressing oil cylinder barrel, the buckling and pressing oil cylinder barrel is fixedly connected with the machine case, two ends of the buckling and pressing oil cylinder barrel are respectively and fixedly connected with a mounting plate and a front flange, a first oil hole and a second oil hole are formed in the bottom of the buckling and pressing oil cylinder barrel in a penetrating mode, a cone piston is connected to the inner wall of the buckling and pressing oil cylinder barrel in a sliding mode, a first inner cavity is formed between the cone piston and the buckling and pressing oil cylinder barrel and communicated with the first oil hole, a rear piston is fixedly connected with the tail end of the cone piston, a second inner cavity is formed between the rear piston and the cone piston and the buckling and pressing oil cylinder barrel, and the second oil hole are communicated with the second inner cavity, first oilhole, second oilhole all are connected with the hydraulic pressure station through the pipeline, the inner wall of withholding hydro-cylinder is that the circumference distributes and is provided with a plurality of single conical surface die holders, install the mould on the single conical surface die holder, the conical surface of single conical surface die holder and the laminating of the bevel connection inner wall of bevel connection piston, per two are adjacent be provided with a plurality of spring between the single conical surface die holder, the terminal surface of single conical surface die holder and the interior terminal surface laminating of front flange, loose core hydro-cylinder and mounting panel fixed connection, the piston rod of the hydro-cylinder of loosing core is connected with through quick detach mechanism and props the core, prop the core and be located and detain the hydro-cylinder, and a plurality of moulds are the circumference and distribute in the outside of propping the core.
As a further scheme of the invention: the buckling oil cylinder is internally provided with a first sealing ring, a second sealing ring and a third sealing ring, the first sealing ring is embedded into the surface of the cone-mouth piston and is attached to the inner wall of the buckling oil cylinder, the second sealing ring is embedded into the inner wall of the buckling oil cylinder and is attached to the outer wall of the cone-mouth piston, the third sealing ring is sleeved at the tail end of the cone-mouth piston and is attached to the end face of the rear piston and the inner wall of the buckling oil cylinder, the first inner cavity is located between the first sealing ring and the second sealing ring, and the second inner cavity is located between the second sealing ring and the third sealing ring.
As a further scheme of the invention: the quick-release mechanism comprises a clamping sleeve movably sleeved on a piston rod of the core-pulling oil cylinder, the clamping sleeve penetrates through the core, a limiting block is integrally formed at one end, located in the clamping sleeve, of the core, the clamping sleeve and the piston rod of the core-pulling oil cylinder jointly penetrate through the pin, and a through hole matched with the pin is formed in the surface of the piston rod of the core-pulling oil cylinder and the surface of the clamping sleeve.
As a further scheme of the invention: the outer wall of mounting panel runs through and is provided with the guide cylinder, the outer wall of cutting ferrule and the inner wall sliding connection of guide cylinder, prop the outer wall activity of core and cup jointed the position sleeve, the position sleeve embedding sets up on the terminal surface of guide cylinder.
As a still further scheme of the invention: the guide cylinder is movably connected with the mounting plate, the outer wall of the mounting plate is in threaded connection with a screw, a blind hole is formed in the outer wall of the guide cylinder and the corresponding position of the screw, and the end portion of the screw penetrates through the mounting plate and then is located in the blind hole.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can simultaneously realize one-stop operation of the steps of core adding, buckling position positioning, buckling and core pulling in the buckling connection of the connecting rod joint and the gun barrel by arranging the buckling oil cylinder barrel, the cone piston, the single-cone die holder, the die, the core pulling oil cylinder, the core supporting and the like, greatly improves the processing efficiency, simplifies the processing operation steps and has good use effect.
2. According to the invention, through the matching of the pin and the through hole, after the pin is pulled out from the through hole, the clamping sleeve and the support core can be pulled out from the opening of the front flange, so that the support core can be rapidly detached.
3. According to the guide cylinder, the screw and the blind hole are arranged, the screw is unscrewed, the end part of the screw is separated from the blind hole, and then the guide cylinder can be taken down from the mounting plate, so that the guide cylinder can be rapidly detached.
Drawings
Fig. 1 is a schematic structural diagram of a special bucking machine for a gas shield welding gun.
Fig. 2 is a schematic structural diagram of an execution unit in a special withholding machine for a gas shielded welding gun.
Fig. 3 is a sectional view of an actuator unit in a special tapping machine for a gas shielded welding torch.
Fig. 4 is a schematic diagram of the internal structure of a cylinder barrel of a withholding oil cylinder in a withholding machine special for a gas shield welding gun.
Fig. 5 is a schematic structural diagram of a spring in a special withholding machine for a gas shielded welding gun.
Fig. 6 is an enlarged view of a portion a in fig. 4.
The device comprises a case 1, a control unit 2, a power unit 3, an execution unit 4, a withholding oil cylinder 5, a rear piston 6, a front flange 7, a taper piston 8, a first inner cavity 9, a first oil hole 10, a second oil hole 11, a first sealing ring 12, a second sealing ring 13, a single-cone die holder 14, a die 15, an installation plate 16, a loose core oil cylinder 17, a cutting sleeve 18, a pin 19, a limiting block 20, a support core 21, a guide cylinder 22, a screw 23, a positioning sleeve 24, a connecting rod joint 25, a barrel 26, a withholding outer tube 27, a spring 28, a second inner cavity 29 and a third sealing ring 30.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, are used merely to facilitate description of the present invention and to simplify description, and do not indicate or imply that the referenced devices or elements must have the particular orientations, configurations and operations described in the specification, and therefore are not to be considered limiting.
Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Referring to fig. 1 to 6, in the embodiment of the present invention, the hydraulic power unit includes a control unit 2, a power unit 3, and an execution unit 4, which are installed on a chassis 1, the power unit 3 is a hydraulic station, the execution unit 4 includes a buckling oil cylinder and a core pulling oil cylinder 17, the buckling oil cylinder includes a buckling oil cylinder barrel 5, the buckling oil cylinder barrel 5 is fixedly connected with the chassis 1, two ends of the buckling oil cylinder barrel 5 are respectively and fixedly connected with a mounting plate 16 and a front flange 7, a first oil hole 10 and a second oil hole 11 are formed through the bottom of the buckling oil cylinder barrel 5, an inner wall of the buckling oil cylinder barrel 5 is slidably connected with a cone piston 8, a first inner cavity 9 is formed between the cone piston 8 and the buckling oil cylinder barrel 5, the first inner cavity 9 is communicated with the first oil hole 10, a rear piston 6 is fixedly connected to a tail end of the cone piston 8, a second inner cavity 29 is formed between the rear piston 6, the cone piston 8 and the buckling oil cylinder barrel 5, second oilhole 11 and second inner chamber 29 intercommunication, first oilhole 10, second oilhole 11 all are connected with the hydraulic pressure station through the pipeline, the inner wall of withholding hydro-cylinder 5 is that the circumference distributes and is provided with a plurality of single conical surface die holders 14, install mould 15 on the single conical surface die holder 14, the conical surface of single conical surface die holder 14 and the laminating of the awl mouth inner wall of awl mouth piston 8, per two are adjacent be provided with a plurality of spring 28 between the single conical surface die holder 14, the terminal surface of single conical surface die holder 14 and the laminating of the interior terminal surface of front flange 7, loose core hydro-cylinder 17 and mounting panel 16 fixed connection, the piston rod of loose core hydro-cylinder 17 is connected with through quick detach mechanism and props core 21, prop core 21 and be located withholding hydro-cylinder, and a plurality of moulds 15 are the circumference and distribute in the outside of propping core 21.
Be provided with first sealing washer 12, second sealing washer 13 and third sealing washer 30 in the withholding hydro-cylinder, the embedding of first sealing washer 12 sets up on the surface of taper piston 8, and with the laminating of the inner wall of withholding hydro-cylinder 5, the embedding of second sealing washer 13 sets up on the inner wall of withholding hydro-cylinder 5, and laminates with the outer wall of taper piston 8, third sealing washer 30 cover is established at the tail end of taper piston, and laminates with the terminal surface of back piston 6 and the inner wall of withholding hydro-cylinder 5, first inner chamber 9 is located between first sealing washer 12 and second sealing washer 13, second inner chamber 29 is located between second sealing washer 13 and the third sealing washer 30.
Through the arrangement of the first sealing ring 12, the second sealing ring 13 and the third sealing ring 30, the sealing performance of the first inner cavity 9 and the second inner cavity 29 can be guaranteed, so that hydraulic oil leakage during the operation of the buckling oil cylinder is avoided, hydraulic oil is alternately input into the first inner cavity 9 and the second inner cavity 29 through a hydraulic station, and the sliding action of the cone piston 8 and the rear piston 6 in the buckling oil cylinder body 5 can be realized.
Quick detach mechanism cup joints cutting ferrule 18 on the hydro-cylinder 17 piston rod of loosing core including the activity, prop the cutting ferrule 18 that runs through of core 21, and prop one end integrated into one piece that core 21 is located cutting ferrule 18 and have stopper 20, cutting ferrule 18 runs through jointly with the piston rod of hydro-cylinder 17 of loosing core and is provided with pin 19, the through-hole with pin 19 looks adaptation is seted up on the piston rod of hydro-cylinder 17 of loosing core and the surface of cutting ferrule 18.
Through the cooperation of the pin 19 and the through hole, after the pin 19 is drawn out of the through hole, the cutting sleeve 18 and the support core 21 can be drawn out from the opening of the front flange 7.
The outer wall of mounting panel 16 runs through and is provided with guide cylinder 22, the outer wall of cutting ferrule 18 and the inner wall sliding connection of guide cylinder 22, the outer wall activity of propping core 21 has cup jointed position sleeve 24, position sleeve 24 embedding sets up on the terminal surface of guide cylinder 22.
The stability of the movement of the ferrule 18 and the stem 21 can be improved by the provision of the guide cylinder 22.
By means of the arrangement of the screw 23 and the blind hole, the guide cylinder 22 can be taken down from the mounting plate 16 after the screw 23 is unscrewed and the end part of the screw is separated from the blind hole.
The working principle of the invention is as follows:
in the standby state of the crimping machine, the piston rod of the core-pulling oil cylinder 17 is in an extending state, and the single-cone die holder 14 drives the die 15 to be in an opening state, so that when the crimping operation is carried out, the assembled connecting rod joint 25, the gun barrel 26 and the buckling outer tube 27 are sleeved on the support core 21, and the end of the connecting rod joint 25 is abutted against the end face of the positioning sleeve 24, at this time, a plurality of molds are exactly distributed on the outer side of the buckling outer tube 27 in a circumferential manner, then the control unit 2 controls a corresponding hydraulic valve on the power unit 3, hydraulic oil is injected into the first inner cavity 9 through the first oil hole 10 to push the cone piston 8 to move towards the front flange 7, thereby utilizing the matching between the cone opening of the cone opening piston 8 and the cone surface of the single-cone mold seat 14 to drive the plurality of molds 15 to move towards the buckling outer tube 27, to crimp the crimp outer tube 27 and thereby connect the rod connector 25 to the barrel 26.
After the buckling is finished, hydraulic oil is injected into the second inner cavity 29 through the second oil hole 11, the hydraulic oil in the first inner cavity 9 flows back to the hydraulic station through the first oil hole 10, the cone-mouth piston 8 can be driven to move towards the mounting plate 16, the single-cone-face die holder 14 automatically resets under the action of the spring 28 at the moment, so that the die 15 opens, after the die 15 completely resets, the core pulling oil cylinder 17 is started, the piston rod of the core pulling oil cylinder retracts, and the support core 21 can be pulled out from the barrel 24 and the connecting rod connector 25, so that the operation is finished.
The execution unit is a buckling and pressing mechanism with a single cone opening capable of contracting in the radial direction, the cone opening piston 8 is provided with a cone opening, the front flange 7 is a flat end opening, synchronous contraction and expansion of the die 15 in the diameter direction can be realized through the single cone face die holder 14, and compared with a traditional double cone opening buckling and pressing mechanism, the execution unit does not have axial displacement during radial contraction and expansion.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (5)
1. Gas shield welds special withhold machine of welder, including installing control unit (2), power pack (3) and execution unit (4) on quick-witted case (1), power pack (3) are hydraulic pressure station, its characterized in that: the execution unit (4) comprises a buckling oil cylinder and a core-pulling oil cylinder (17), the buckling oil cylinder comprises a buckling oil cylinder barrel (5), the buckling oil cylinder barrel (5) is fixedly connected with the case (1), two ends of the buckling oil cylinder barrel (5) are respectively and fixedly connected with a mounting plate (16) and a front flange (7), a first oil hole (10) and a second oil hole (11) are formed in the bottom of the buckling oil cylinder barrel (5) in a penetrating mode, a cone opening piston (8) is connected to the inner wall of the buckling oil cylinder barrel (5) in a sliding mode, a first inner cavity (9) is formed between the cone opening piston (8) and the buckling oil cylinder barrel (5), the first inner cavity (9) is communicated with the first oil hole (10), a rear piston (6) is fixedly connected to the tail end of the cone opening piston (8), and a second inner cavity (29) is formed between the rear piston (6), the cone opening piston (8) and the buckling oil cylinder barrel (5), the second oil hole (11) is communicated with the second inner cavity (29), the first oil hole (10) and the second oil hole (11) are connected with a hydraulic station through pipelines, a plurality of single conical surface die holders (14) are distributed on the inner wall of the buckling oil cylinder barrel (5) in a circumferential manner, a die (15) is arranged on the single conical surface die holder (14), the conical surface of the single conical surface die holder (14) is attached to the inner wall of the conical opening piston (8), a plurality of springs (28) are arranged between every two adjacent single conical surface die holders (14), the end surface of the single-conical-surface die holder (14) is attached to the inner end surface of the front flange (7), the core-pulling oil cylinder (17) is fixedly connected with the mounting plate (16), a piston rod of the core-pulling oil cylinder (17) is connected with a supporting core (21) through a quick-release mechanism, the supporting core (21) is positioned in the buckling oil cylinder, and the plurality of dies (15) are circumferentially distributed on the outer side of the supporting core (21).
2. The special bucking machine for gas shield welding gun according to claim 1, characterized in that: the buckling oil cylinder is internally provided with a first sealing ring (12), a second sealing ring (13) and a third sealing ring (30), the first sealing ring (12) is embedded into the surface of the cone opening piston (8) and is attached to the inner wall of the buckling oil cylinder (5), the second sealing ring (13) is embedded into the inner wall of the buckling oil cylinder (5) and is attached to the outer wall of the cone opening piston (8), the third sealing ring (30) is sleeved at the tail end of the cone opening piston and is attached to the end face of the rear piston (6) and the inner wall of the buckling oil cylinder (5), the first inner cavity (9) is located between the first sealing ring (12) and the second sealing ring (13), and the second inner cavity (29) is located between the second sealing ring (13) and the third sealing ring (30).
3. The special bucking machine for gas shield welding gun according to claim 1, characterized in that: quick detach mechanism cup joints cutting ferrule (18) on the hydro-cylinder (17) piston rod of loosing core including the activity, prop the cutting ferrule (18) that runs through of core (21), and prop one end integrated into one piece that core (21) are located cutting ferrule (18) and have stopper (20), cutting ferrule (18) run through jointly with the piston rod of hydro-cylinder (17) of loosing core and be provided with pin (19), the through-hole with pin (19) looks adaptation is seted up on the piston rod of hydro-cylinder (17) of loosing core and the surface of cutting ferrule (18).
4. The special bucking machine for gas shield welding gun according to claim 3, characterized in that: the outer wall of mounting panel (16) runs through and is provided with guide cylinder (22), the outer wall of cutting ferrule (18) and the inner wall sliding connection of guide cylinder (22), the outer wall activity of propping core (21) has cup jointed position sleeve (24), position sleeve (24) embedding sets up on the terminal surface of guide cylinder (22).
5. The special bucking machine for gas shield welding gun according to claim 4, characterized in that: guide cylinder (22) and mounting panel (16) swing joint, the outer wall threaded connection of mounting panel (16) has screw (23), the blind hole has been seted up with the department that corresponds of screw (23) to the outer wall of guide cylinder (22), the tip of screw (23) runs through and is located the blind hole behind mounting panel (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110646699.9A CN113427239A (en) | 2021-06-10 | 2021-06-10 | Special bucking machine for gas shield welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110646699.9A CN113427239A (en) | 2021-06-10 | 2021-06-10 | Special bucking machine for gas shield welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113427239A true CN113427239A (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110646699.9A Pending CN113427239A (en) | 2021-06-10 | 2021-06-10 | Special bucking machine for gas shield welding gun |
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| Country | Link |
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| CN (1) | CN113427239A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682641A (en) * | 2022-05-17 | 2022-07-01 | 安徽金铂新材料科技有限公司 | Quick forming die is used in processing of dysmorphism thin wall aluminum alloy |
| CN115230180A (en) * | 2022-09-22 | 2022-10-25 | 太仓濂辉液压器材有限公司 | Hydraulic oil pipe assembly buckling device and working method thereof |
-
2021
- 2021-06-10 CN CN202110646699.9A patent/CN113427239A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682641A (en) * | 2022-05-17 | 2022-07-01 | 安徽金铂新材料科技有限公司 | Quick forming die is used in processing of dysmorphism thin wall aluminum alloy |
| CN115230180A (en) * | 2022-09-22 | 2022-10-25 | 太仓濂辉液压器材有限公司 | Hydraulic oil pipe assembly buckling device and working method thereof |
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