CN114012245A - A pinch roller leveling device for friction stir welding - Google Patents
A pinch roller leveling device for friction stir welding Download PDFInfo
- Publication number
- CN114012245A CN114012245A CN202111410411.4A CN202111410411A CN114012245A CN 114012245 A CN114012245 A CN 114012245A CN 202111410411 A CN202111410411 A CN 202111410411A CN 114012245 A CN114012245 A CN 114012245A
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- CN
- China
- Prior art keywords
- pinch roller
- friction stir
- stir welding
- welding
- leveling device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 69
- 238000003756 stirring Methods 0.000 title claims abstract description 52
- 238000009434 installation Methods 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention belongs to the technical field of welding, and provides a pinch roller leveling device for friction stir welding. When the device works, the pinch roller plate of the pinch roller leveling device extends to the front end of the stirring head and can move forwards along with the stirring head, the pinch roller plate can move up and down along the guide rail under the control of the thin cylinder, and the adjustment of the pressure can be realized by matching with the air pressure adjusting device. During welding, the movable end of the thin cylinder is extended to drive the pressure wheel plate and the bearing to move downwards, the bearing is in contact with a workpiece and is pressed at the front end of a welding position, the bearing rolls forwards along with the workpiece along with the forward movement of the stirring head, and a pressure point of the bearing is kept at the position 50-100 mm away from the front end of the welding position to form a movable pressure point with adjustable pressure, so that the welding seam forming effect and the welding seam quality in the welding process are guaranteed.
Description
Technical Field
The invention belongs to the technical field of welding, and particularly relates to a pinch roller leveling device for friction stir welding.
Background
The friction stir welding is a concept that the original friction welding is only limited to the welding of round section materials, and the method breaks through the concept that the original friction welding is only limited to the welding of round section materials, is the latest welding technology of aluminum and aluminum alloy, can replace the traditional fusion welding, resistance welding and rivet welding technologies to a certain extent by the friction stir welding technology, is particularly suitable for the welding of large and large parts, has prominent obvious advantages on the aluminum alloy welding, and is widely popularized in the industrial fields of aviation, tracks and the like.
The friction stir welding method is the same as the conventional friction welding method, and also utilizes friction heat and plastic deformation heat as welding heat sources, and is characterized in that a cylindrical or other-shaped stirring head extends into the joint of a workpiece in the friction stir welding process, the stirring head is rotated at a high speed to be rubbed with the material of the workpiece to be welded, so that the temperature of the material at the connecting part is raised and softened, and meanwhile, the material is stirred and rubbed to complete the welding, as shown in figure 1, in the welding process, the workpiece is rigidly fixed on a back cushion, the stirring head rotates at a high speed, the joint of the workpiece is moved relative to the workpiece along the joint, a protruding section of the stirring head extends into the material to be rubbed and stirred, and the shoulder of the stirring head and the surface of the workpiece generate heat through friction, the shoulder of the stirring head is used for preventing the plastic state material from overflowing, and the effect of removing an oxide film on the surface can be achieved.
In the process of friction stir welding of large and medium sheets, certain deformation exists due to the influence of heat on the sheets and the welding process, welding deformation can be prevented when the welding deformation exceeds a certain amount, and large and medium workpieces cannot be prevented from deforming and corrected by adopting a support and a pressing plate in the middle of a welding seam.
Disclosure of Invention
The invention provides a pinch roller leveling device for friction stir welding, and aims to solve the technical problem.
The invention is realized in this way, a pinch roller leveling device for friction stir welding, set up on the friction stir welding apparatus, the said friction stir welding apparatus includes the main axis and stirs the head connected with front end of the said main axis, the said pinch roller leveling device includes connecting to the support on the said main axis removably, thin air cylinder set in said support and pinch roller board connected with free end of the said thin air cylinder;
a guide rail is connected below the support and arranged along the moving direction of the thin cylinder, the pinch roller plate is fixedly connected with a connecting piece, the pinch roller plate moves along the moving direction of the guide rail and the thin cylinder through the connecting piece, and the front end of the pinch roller plate extends to the side of the stirring head;
the front end of the pressure wheel plate is symmetrically provided with a shaft hole, a roller shaft is inserted in the shaft hole, a bearing is sleeved on the roller shaft, and the bearing is used for rolling and leveling the front end of the welding position.
Further, the pinch roller plate comprises a first connecting portion and a second connecting portion, the first connecting portion is vertically arranged, the first connecting portion is connected with the connecting piece and the movable end of the thin cylinder, the second connecting portion faces the main shaft and is arranged in an inclined mode, and the front end of the second connecting portion is connected with the roller shaft.
Furthermore, the included angle between the first connecting portion and the second connecting portion is 120 degrees.
Furthermore, the distance between the bearing and the stirring head is 50-100 mm.
Furthermore, the roller shaft is also provided with a spacer bush and a shaft check ring.
Still further, the air pressure adjusting device for adjusting the air pressure of the thin air cylinder is further included.
Further, the support includes installation department and accepting part, the installation department seted up with arc structure and the mounting hole of main shaft laminating, accepting part sets up the confession the through-hole that the expansion end of slim cylinder passes through.
Advantageous effects
The pinch roller leveling device for friction stir welding provided by the embodiment of the invention is arranged on the end surface of the main shaft of friction stir welding equipment, is convenient to disassemble, and can be disassembled when thick plates and small workpieces are welded. When the device works, the pinch roller plate of the pinch roller leveling device extends to the front end of the stirring head and can move forwards along with the stirring head, the pinch roller plate can move up and down along the guide rail under the control of the thin cylinder, and the adjustment of the pressure can be realized by matching with the air pressure adjusting device. During welding, the movable end of the thin cylinder is extended to drive the pressure wheel plate and the bearing to move downwards, the bearing is in contact with a workpiece and is pressed at the front end of a welding position, the bearing rolls forwards along with the workpiece along with the forward movement of the stirring head, and a pressure point of the bearing is kept at the position 50-100 mm away from the front end of the welding position to form a movable pressure point with adjustable pressure, so that the welding seam forming effect and the welding seam quality in the welding process are guaranteed.
Drawings
FIG. 1 is a schematic view of a prior art friction stir welding process;
FIG. 2 is a schematic diagram of a press wheel leveling apparatus for friction stir welding according to an embodiment of the present invention;
FIG. 3 is a top view of the bracket of FIG. 2;
fig. 4 is a schematic view of the mounting position of the bracket and the spindle in the embodiment of the invention.
The reference numbers in the figures denote: the device comprises a thin cylinder 1, a support 2, a guide rail 3, a pressure wheel plate 4, a connecting piece 5, a roller shaft 6, a bearing 7 and a main shaft 8.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and 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.
Referring to fig. 2 to 4, an embodiment of the present invention provides a pinch roller leveling device for friction stir welding, which is disposed on a friction stir welding device, the friction stir welding device includes a main shaft 8 and a stirring head connected to a front end of the main shaft 8, and the pinch roller leveling device includes a bracket 2 detachably connected to the main shaft 8, a thin cylinder 1 disposed on the bracket 2, and a pinch roller plate 4 connected to a movable end of the thin cylinder 1.
Support 2 installs at 8 terminal surfaces of main shaft, and support 2 can dismantle with main shaft 8 and be connected, and convenient the dismantlement can be dismantled when welding thick plate, small-size work piece, does not influence the use.
The support 2 is horizontally arranged and is perpendicular to the main shaft 8, the support 2 can be arranged to comprise an installation part and a bearing part, the installation part is provided with an arc structure and an installation hole which are attached to the main shaft 8, and the bearing part is provided with a through hole for the movable end of the thin cylinder 1 to pass through. The bracket 2 is connected with the main shaft 8 through a mounting hole by a bolt, the thin cylinder 1 can also be connected on a bearing part of the bracket 2 through a bolt, and the movable end of the thin cylinder 1 passes through the through hole to extend or shorten so as to change the height of the pinch roller plate 4.
The guide rail 3 is connected with the lower part of the bracket 2, the guide rail 3 is arranged along the moving direction of the thin cylinder 1, the pinch roller plate 4 is fixedly connected with a connecting piece 5, the pinch roller plate 4 moves along the moving direction of the guide rail 3 and the thin cylinder 1 through the connecting piece 5, and the front end of the pinch roller plate 4 extends to the side of the stirring head.
The front end of the pressure wheel plate 4 is symmetrically provided with a shaft hole, a roller shaft 6 is inserted in the shaft hole, a bearing 7 is sleeved on the roller shaft 6, and the bearing 7 is used for rolling and leveling the front end of the welding position.
The pressure wheel plate 4 is perpendicular to the support 2 and used for driving the bearing 7 to move in the vertical direction so as to adjust the pressure of the bearing 7 on the workpiece. The whole pinch roller plate 4 is made of a square pipe, the width of the pinch roller plate is smaller than that of the support 2, the pinch roller plate 4 comprises a first connecting portion and a second connecting portion, the first connecting portion is vertically arranged and is in threaded connection with the movable end of the thin cylinder 1, the second connecting portion is obliquely arranged towards the main shaft 8, the front end of the second connecting portion is connected with the roller shaft 6, and the second connecting portion of the pinch roller plate 4 extends to the side of the stirring head. In addition, the included angle between the first connecting part and the second connecting part is 120 degrees, so that the connecting structure has better structural strength.
The bearing 7 can rotate on the roller shaft 6, the bearing 7 rolls forwards along with the forward movement of the stirring head to form a moving pressure point with adjustable pressure, the part to be welded of the workpiece is leveled at the front end of the welding position of the stirring head, and the welding seam forming effect and the welding seam quality in the welding process are ensured. The roller shaft 6 is also provided with a spacer bush and a shaft check ring so as to improve the matching service life and the rolling effect of the bearing 7 and the roller shaft 6.
In an embodiment of the invention, the pinch roller leveling device further comprises an air pressure adjusting device of the air pressure of the thin cylinder 1, the air pressure adjusting device is connected with an air inlet and an air outlet of the thin cylinder 1, the extension length of the thin cylinder 1 is adjusted by changing the air pressure, the moving distance of the pinch roller plate 4 is changed, the pressing pressure of the bearing 7 is changed, the air pressure value can be set by the air pressure adjusting device, the extension length of the thin cylinder 1 is automatically adjusted according to the set air pressure value, and the extension length of the thin cylinder 1 can be automatically adjusted according to the condition of a specific processing workpiece.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A pinch roller leveling device for friction stir welding is arranged on friction stir welding equipment, the friction stir welding equipment comprises a main shaft and a stirring head connected with the front end of the main shaft, and the pinch roller leveling device is characterized by comprising a bracket detachably connected to the main shaft, a thin cylinder arranged on the bracket and a pinch roller plate connected with the movable end of the thin cylinder;
a guide rail is connected below the support and arranged along the moving direction of the thin cylinder, the pinch roller plate is fixedly connected with a connecting piece, the pinch roller plate moves along the moving direction of the guide rail and the thin cylinder through the connecting piece, and the front end of the pinch roller plate extends to the side of the stirring head;
the front end of the pressure wheel plate is symmetrically provided with a shaft hole, a roller shaft is inserted in the shaft hole, a bearing is sleeved on the roller shaft, and the bearing is used for rolling and leveling the front end of the welding position.
2. The pinch roller leveling device for friction stir welding according to claim 1, wherein the pinch roller plate includes a first connecting portion and a second connecting portion, the first connecting portion is vertically disposed, the first connecting portion is connected to the connecting member and the movable end of the thin cylinder, the second connecting portion is obliquely disposed toward the main shaft, and a front end of the second connecting portion is connected to the roller shaft.
3. The puck leveling device for friction stir welding of claim 2, wherein the first connection portion is at an angle of 120 degrees to the second connection portion.
4. The pinch roller leveling device for friction stir welding according to claim 3, wherein the distance between the bearing and the stirring head is 50-100 mm.
5. The pinch roller leveling device for friction stir welding of claim 1 wherein the roller shaft is further provided with a spacer and a shaft retainer.
6. The press wheel leveling apparatus for friction stir welding of claim 1 further comprising an air pressure adjusting means for adjusting the air pressure of said thin air cylinder.
7. The pinch roller leveling device for friction stir welding as claimed in claim 1, wherein the bracket comprises an installation portion and a receiving portion, the installation portion is provided with an arc structure and an installation hole which are attached to the spindle, and the receiving portion is provided with a through hole through which the movable end of the thin cylinder passes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111410411.4A CN114012245A (en) | 2021-11-23 | 2021-11-23 | A pinch roller leveling device for friction stir welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111410411.4A CN114012245A (en) | 2021-11-23 | 2021-11-23 | A pinch roller leveling device for friction stir welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114012245A true CN114012245A (en) | 2022-02-08 |
Family
ID=80066426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111410411.4A Pending CN114012245A (en) | 2021-11-23 | 2021-11-23 | A pinch roller leveling device for friction stir welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114012245A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116000439A (en) * | 2022-12-29 | 2023-04-25 | 北京索德瀚智能科技有限公司 | Friction stir welding method and equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130098526A1 (en) * | 2011-10-19 | 2013-04-25 | Yoshinori Kato | Friction stirring and joining apparatus, and friction stirring and joining method |
| CN108393637A (en) * | 2018-05-11 | 2018-08-14 | 上海航天设备制造总厂有限公司 | Trailing type pressing device and compressing method for the welding of thin plate agitating friction |
| CN110802317A (en) * | 2019-11-15 | 2020-02-18 | 中车长春轨道客车股份有限公司 | Static shaft shoulder wire filling friction stir welding machine head system |
| CN210817937U (en) * | 2019-07-25 | 2020-06-23 | 凌云工业股份有限公司上海凌云汽车研发分公司 | Pressing mechanism for stirring welding of battery box for vehicle |
| CN211661322U (en) * | 2019-10-30 | 2020-10-13 | 广东省焊接技术研究所（广东省中乌研究院） | Device for realizing constant welding depth in friction stir welding |
| CN112059401A (en) * | 2020-10-16 | 2020-12-11 | 南通国轩新能源科技有限公司 | Friction stir welding pressing device and method |
| CN112317952A (en) * | 2020-11-10 | 2021-02-05 | 湖南坤鼎数控科技有限公司 | Friction stir welding follow-up auxiliary device |
| CN112658465A (en) * | 2020-12-24 | 2021-04-16 | 江阴东华铝材科技有限公司 | Aluminum profile friction welding pinch roller mechanism |
-
2021
- 2021-11-23 CN CN202111410411.4A patent/CN114012245A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130098526A1 (en) * | 2011-10-19 | 2013-04-25 | Yoshinori Kato | Friction stirring and joining apparatus, and friction stirring and joining method |
| CN108393637A (en) * | 2018-05-11 | 2018-08-14 | 上海航天设备制造总厂有限公司 | Trailing type pressing device and compressing method for the welding of thin plate agitating friction |
| CN210817937U (en) * | 2019-07-25 | 2020-06-23 | 凌云工业股份有限公司上海凌云汽车研发分公司 | Pressing mechanism for stirring welding of battery box for vehicle |
| CN211661322U (en) * | 2019-10-30 | 2020-10-13 | 广东省焊接技术研究所（广东省中乌研究院） | Device for realizing constant welding depth in friction stir welding |
| CN110802317A (en) * | 2019-11-15 | 2020-02-18 | 中车长春轨道客车股份有限公司 | Static shaft shoulder wire filling friction stir welding machine head system |
| CN112059401A (en) * | 2020-10-16 | 2020-12-11 | 南通国轩新能源科技有限公司 | Friction stir welding pressing device and method |
| CN112317952A (en) * | 2020-11-10 | 2021-02-05 | 湖南坤鼎数控科技有限公司 | Friction stir welding follow-up auxiliary device |
| CN112658465A (en) * | 2020-12-24 | 2021-04-16 | 江阴东华铝材科技有限公司 | Aluminum profile friction welding pinch roller mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116000439A (en) * | 2022-12-29 | 2023-04-25 | 北京索德瀚智能科技有限公司 | Friction stir welding method and equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220208 |