CN120606147A - A welding fixture for automated argon arc welding of automotive parts - Google Patents
A welding fixture for automated argon arc welding of automotive partsInfo
- Publication number
- CN120606147A CN120606147A CN202510957069.1A CN202510957069A CN120606147A CN 120606147 A CN120606147 A CN 120606147A CN 202510957069 A CN202510957069 A CN 202510957069A CN 120606147 A CN120606147 A CN 120606147A
- Authority
- CN
- China
- Prior art keywords
- clamping
- block
- linkage
- argon arc
- automated
- 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.)
- Granted
Links
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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
本发明涉及焊接夹具技术领域，具体涉及一种用于汽车零部件自动化氩弧焊接的焊接夹具，包括夹持座；所述夹持座的两端均设有夹持组件；所述夹持组件包括沿X轴方向滑动设于夹持座的滑动座、沿Y轴方向滑动设于滑动座的驱动块以及沿X轴方向伸缩活动设于滑动座一侧的第一夹持块。本发明通过改变施加给磁流变液的压力，从而使得第一柔性接触头不易形变，第二柔性接触头容易形变，从而能够保证第一柔性接触头与缩口区之间连接的稳定性，以及能够有效地减少第二柔性接触头施加扩口区的压强，防止扩口区的损坏。
The present invention relates to the technical field of welding fixtures, and more specifically, to a welding fixture for automated argon arc welding of automotive parts, comprising a clamping seat; clamping assemblies are provided at both ends of the clamping seat; the clamping assembly comprises a sliding seat that slides on the clamping seat along the X-axis, a driving block that slides on the sliding seat along the Y-axis, and a first clamping block that is telescopically movable along the X-axis and is disposed on one side of the sliding seat. The present invention varies the pressure applied to the magnetorheological fluid, thereby making the first flexible contact head less susceptible to deformation and the second flexible contact head more susceptible to deformation, thereby ensuring the stability of the connection between the first flexible contact head and the shrinking area, and effectively reducing the pressure applied to the expanding area by the second flexible contact head, thereby preventing damage to the expanding area.
Description
Technical Field
The invention relates to the technical field of welding clamps, in particular to a welding clamp for automatic argon arc welding of automobile parts.
Background
In modern manufacturing industry, the stretch forming process is widely applied to precision manufacturing fields such as automobile manufacturing and the like by virtue of the advantage that the stretch forming process can be used for efficiently producing parts with complex curved surfaces. However, stretch molded parts create special mechanical distribution characteristics due to their unique molding process, which presents significant and insurmountable challenges for subsequent welding clamping processes.
Taking the typical stretch-formed workpiece shown in fig. 1 as an example, the workpiece generally includes two critical structural portions, namely a necked area 12 and a flared area 11. The workpiece has obvious mechanical property differentiation characteristic that the flaring zone 11 has relatively poor overall structural strength and weak deformation resistance due to the fact that the flaring zone undergoes a larger degree of material extension in the stretch forming process, and the necking zone 12 has a denser tissue structure due to the fact that the material is subjected to a stronger extrusion effect in the forming process, so that the flaring zone is higher in strength and can bear higher external force. In current production practice, conventional welding jigs commonly employ a single fixed clamping structure. The core defect of the structural design is that the clamping force and the action mode are preset and cannot be adjusted, and dynamic adaptation cannot be carried out according to the mechanical characteristics of different shape areas or different parts of the workpiece. Specifically, when clamping a workpiece including the necking zone 12 and the flaring zone 11, the conventional clamp cannot reduce the clamping force against the characteristic that the flaring zone 11 is low in strength, nor cannot increase the clamping force according to the requirement that the necking zone 12 is high in strength.
The technical limitation directly causes a series of remarkable quality defects in the welding process, namely, for the flaring zone 11, plastic deformation of materials is extremely easy to be caused because the clamping force exceeds the limit which can be born, the problems of dishing, wrinkling or abnormal dimension and the like appear on the surface of a workpiece, and the shrinkage zone 12 is influenced by factors such as welding stress, thermal deformation and the like in the welding process because the clamping force is insufficient, displacement deviation is easy to occur, and the original accurate assembly position is deviated.
These quality defects eventually lead to an excessive weld dimensional accuracy, so that the workpiece cannot meet the assembly tolerance of the design requirements. With the increasing requirements of the automobile manufacturing industry on product quality and performance, particularly in the welding of key parts such as a vehicle body structure and a chassis part, the requirements on high-precision welding standards are severe, and the problems of reduced yield, reduced production efficiency and the like caused by the traditional welding fixture become bottlenecks restricting the development of the industry, so that the high-precision welding fixture is difficult to adapt to the high-precision production requirements of modern automobile manufacturing.
Disclosure of Invention
The invention aims at overcoming the defects in the prior art and provides a welding fixture for automatic argon arc welding of automobile parts.
The invention discloses a welding fixture for automatic argon arc welding of automobile parts, which comprises a clamping seat, wherein clamping assemblies are arranged at two ends of the clamping seat;
the clamping assembly comprises a sliding seat, a driving block and a first clamping block, wherein the sliding seat is arranged on the clamping seat in a sliding manner along the X-axis direction, the driving block is arranged on the sliding seat in a sliding manner along the Y-axis direction, and the first clamping block is flexibly arranged on one side of the sliding seat along the X-axis direction;
The device comprises a first clamping block, a first piston plate, a first push rod, a first spring, a first flexible contact head, a first spring, a second flexible contact head, a first push rod, a second push rod, a first spring, a second spring, a first spring and a second spring, wherein the first sealing cavity is arranged in the first clamping block;
a first linkage assembly is arranged between the driving block and the first clamping block, and a first transformation assembly is arranged between the driving block and the first push rod.
The invention further provides that the first linkage assembly comprises a first linkage chute arranged on one side of the driving block and a first linkage pin arranged on the other end of the first clamping block, and the first linkage pin is movably arranged on the first linkage chute.
The invention further provides that the first voltage transformation assembly comprises a first voltage transformation chute arranged on one side of the driving block and a first voltage transformation pin arranged on the first push rod, wherein the first voltage transformation pin is movably arranged on the first voltage transformation chute, and the slope of the first voltage transformation chute is larger than that of the first linkage chute.
The invention is further arranged that the clamping assembly further comprises a second clamping block which is flexibly and movably arranged on the other side of the sliding seat along the X-axis direction;
The second clamping block is internally provided with a second sealing cavity, a second piston plate is movably arranged in the second sealing cavity in a sealing way, one end of the second clamping block is provided with a second flexible contact head communicated with one end of the second sealing cavity, the other end of the second clamping block is provided with a second push rod, the second push rod is movably arranged at the other end of the second sealing cavity in a telescopic way, a second spring is arranged between the second push rod and the second piston plate, and magnetorheological fluid is arranged between the second flexible contact head and one end of the second sealing cavity;
a second linkage assembly is arranged between the driving block and the second clamping block, and a second transformation assembly is arranged between the driving block and the second push rod.
The invention further provides that the second linkage assembly comprises a second linkage chute arranged on the other side of the driving block and a second linkage pin arranged on the other end of the second clamping block, and the second linkage pin is movably arranged on the second linkage chute.
The invention further provides that the second transformation assembly comprises a second transformation chute arranged on the other side of the driving block and a second transformation pin arranged on the second push rod, wherein the second transformation pin is movably arranged on the second transformation chute, and the slope of the second transformation chute is larger than that of the second linkage chute.
The invention is further characterized in that a positioning block is arranged in the middle of the sliding seat, and a tension spring is arranged between the positioning block and the middle of the driving block.
The invention further provides that the clamping seat is provided with a screw rod in a rotating mode along the X-axis direction, two ends of the screw rod are respectively provided with a first thread and a second thread, the rotation direction of the first thread is opposite to that of the second thread, the clamping seat is provided with a clamping motor, the output end of the clamping motor is connected with the screw rod, and sliding seats of clamping assemblies at two ends of the clamping seat are respectively connected with the first thread and the second thread in a threaded mode.
The invention further provides a welding fixture for automatic argon arc welding of automobile parts, which comprises a machine base, wherein both ends of the machine base are provided with clamping seats;
The driving block is provided with a limiting groove along the Y-axis direction, the sliding seat is provided with a limiting pin, and the limiting pin is movably arranged in the limiting groove.
The invention is further characterized in that the machine base is provided with a rotating motor, and the output end of the rotating motor is connected with the clamping seat.
The invention has the beneficial effects that the pressure applied to the magnetorheological fluid is changed, so that the first flexible contact head is not easy to deform, and the second flexible contact head is easy to deform, thereby ensuring the stability of connection between the first flexible contact head and the necking zone, effectively reducing the pressure of the second flexible contact head applied to the flaring zone and preventing the flaring zone from being damaged.
Drawings
FIG. 1 is a schematic view of the structure of a workpiece;
FIG. 2 is a schematic view of the invention mated with a workpiece;
FIG. 3 is a schematic view of the structure of the clamping seat and the workpiece in the invention;
FIG. 4 is a schematic view of a clamping seat according to the present invention;
FIG. 5 is a cross-sectional view of a holder of the present invention;
FIG. 6 is an internal structural view of the clamping seat of the present invention;
FIG. 7 is a cross-sectional view of a holder of the present invention from another perspective;
The device comprises 11 parts of a flaring area, 12 parts of a necking area, 2 parts of a base, 21 parts of a rotating motor, 3 parts of a clamping seat, 31 parts of a screw rod, 32 parts of a clamping motor, 4 parts of a sliding seat, 41 parts of a positioning block, 42 parts of a tension spring, 43 parts of a limiting pin, 5 parts of a driving block, 51 parts of a first linkage chute, 52 parts of a first transformation chute, 53 parts of a second linkage chute, 54 parts of a second transformation chute, 55 parts of a limiting groove, 6 parts of a first clamping block, 61 parts of a first sealing cavity, 62 parts of a first piston plate, 63 parts of a first flexible contact head, 64 parts of a first push rod, 65 parts of a first spring, 66 parts of a first linkage pin, 67 parts of a first variable-pressure pin, 7 parts of a second clamping block, 71 parts of a second sealing cavity, 72 parts of a second piston plate, 73 parts of a second flexible contact head, 74 parts of a second push rod, 75 parts of a second spring, 76 parts of a second linkage pin, 77 parts of a second linkage pin, and a second variable-pressure pin.
Detailed Description
The invention will be further described with reference to the following examples.
As can be seen from fig. 2 to 7, the welding fixture for automatic argon arc welding of automobile parts according to the present embodiment includes a clamping seat 3, clamping assemblies are disposed at two ends of the clamping seat 3, each clamping assembly includes a sliding seat 4 slidably disposed in an X-axis direction of the clamping seat 3, a driving block 5 slidably disposed in a Y-axis direction of the sliding seat 4, and a first clamping block 6 telescopically disposed at one side of the sliding seat 4 in the X-axis direction, a first sealing cavity 61 is disposed in the first clamping block 6, a first piston plate 62 is movably disposed in the first sealing cavity 61 in a sealing manner, a first flexible contact head 63 communicating with one end of the first sealing cavity 61 is disposed at one end of the first clamping block 6, a first push rod 64 is disposed at the other end of the first clamping block 6, a first spring 65 is disposed between the first push rod 64 and the first sealing cavity 62, a first magnetic rheological fluid is disposed between the first flexible contact head 63 and one end of the first sealing cavity 61, and a first driving block 5 is disposed between the first push rod 64 and the driving block 5, and the first clamping assembly is disposed between the first push rod 64 and the driving block 5. The welding fixture for automatic argon arc welding of automobile parts, which is disclosed by the embodiment, further comprises a second clamping block 7 which is flexibly arranged on the other side of the sliding seat 4 along the X-axis direction, a second sealing cavity 71 is arranged in the second clamping block 7, a second piston plate 72 is hermetically and movably arranged in the second sealing cavity 71, a second flexible contact head 73 which is communicated with one end of the second sealing cavity 71 is arranged at one end of the second clamping block 7, a second push rod 74 is arranged at the other end of the second clamping block 7, the second push rod 74 is flexibly arranged at the other end of the second sealing cavity 71, a second spring 75 is arranged between the second push rod 74 and the second piston plate 72, a second linkage assembly is arranged between the second flexible contact head 73 and one end of the second sealing cavity 71, and a second variable-pressure assembly is arranged between the driving block 5 and the second push rod 74.
Specifically, in the welding fixture for automated argon arc welding of automotive parts according to the present embodiment, the necking zone 12 of the workpiece is placed between the two first clamping blocks 6 of the clamping seat 3, the flaring zone 11 of the workpiece is placed between the two second clamping blocks 7 of the clamping seat 3 at the same time, then the two clamping seats 3 are driven to approach each other, during the moving process of the clamping seat 3, the second flexible contact head 73 of the second clamping block 7 is firstly contacted with the flaring zone 11, under the resisting of the flaring zone 11, the driving block 5 moves towards the direction of the first clamping block 6, under the action of the first linkage component, the first flexible contact head 63 of the first clamping block 6 is driven to extend out of the sliding seat 4 so as to be convenient to contact with the necking zone 12, in addition, the first push rod 64 is pushed to move towards the first sealing cavity 61 under the action of the first transformation component so as to compress the first spring 65, the pressure of magnetorheological fluid between the first flexible contact head 63 and the first sealing cavity 61 is sufficient, the first flexible contact head 63 is not easy to generate, the first flexible contact head 63 is ensured to be stable against the first flexible contact head 63, and the first flexible contact head 63 is stably connected with the necking zone 12; in addition, under the action of the second linkage assembly, the second flexible contact head 73 of the second clamping block 7 is driven to shrink towards the direction of the sliding seat 4, in addition, under the action of the second transformation assembly, the second push rod 74 is pushed to move away from the second sealing cavity 71, so that the second spring 75 is relaxed, the pressure of magnetorheological fluid applied between the second flexible contact head 73 and the second sealing cavity 71 is reduced, the second flexible contact head 73 is easy to deform, the contact area between the deformed second flexible contact head 73 and the flaring zone 11 is increased, therefore, the pressure of the second flexible contact head 73 on the flaring zone 11 can be effectively reduced, the flaring zone 11 is prevented from being damaged, after positioning is finished, the electromagnet is electrified to generate magnetism, so that magnetorheological fluid is hardened, and the stability of clamping the welding fixture and the workpiece for automatic argon arc welding of automobile parts is ensured.
The welding fixture for automatic argon arc welding of automobile parts, which is disclosed by the embodiment, is characterized in that the pressure applied to magnetorheological fluid is changed, so that the first flexible contact head 63 is not easy to deform, the second flexible contact head 73 is easy to deform, the stability of connection between the first flexible contact head 63 and the necking zone 12 can be ensured, the pressure of the second flexible contact head 73 applied to the flaring zone 11 can be effectively reduced, and the damage of the flaring zone 11 is prevented.
The welding fixture for automatic argon arc welding of automobile parts comprises a first linkage assembly, wherein the first linkage assembly comprises a first linkage chute 51 arranged on one side of a driving block 5 and a first linkage pin 66 arranged on the other end of a first clamping block 6, and the first linkage pin 66 is movably arranged on the first linkage chute. The welding fixture for automatic argon arc welding of automobile parts comprises a first transformation chute 52 arranged on one side of a driving block 5 and a first transformation pin 67 arranged on a first push rod 64, wherein the first transformation pin 67 is movably arranged on the first transformation chute 52, and the slope of the first transformation chute 52 is larger than that of a first linkage chute. Specifically, with the above arrangement, the first push rod 64 can be moved closer to the first seal chamber 61 when passing through the throat region 12, thereby compressing the first spring 65 and applying a sufficient pressure to the magnetorheological fluid between the first flexible contact head 63 and the first seal chamber 61.
The welding fixture for automatic argon arc welding of automobile parts comprises a second linkage chute 53 arranged on the other side of the driving block 5 and a second linkage pin 76 arranged on the other end of the second clamping block 7, wherein the second linkage pin 76 is movably arranged on the second linkage chute. The welding fixture for automatic argon arc welding of automobile parts comprises a second variable-pressure chute 54 arranged on the other side of a driving block 5 and a second variable-pressure pin 77 arranged on a second push rod 74, wherein the second variable-pressure pin 77 is movably arranged on the second variable-pressure chute 54, and the slope of the second variable-pressure chute 54 is larger than that of a second linkage chute. Specifically, with the above arrangement, the second push rod 74 can be moved away from the second seal chamber 71 while passing through the flare region 11, thereby releasing the second spring 75, and the pressure of the magnetorheological fluid applied between the second flexible contact head 73 and the second seal chamber 71 is reduced, so that the second flexible contact head 73 is easily deformed.
The welding fixture for automatic argon arc welding of automobile parts is characterized in that a positioning block 41 is arranged in the middle of the sliding seat 4, and a tension spring 42 is arranged between the positioning block 41 and the middle of the driving block 5. The sliding seat 4 is convenient to reset through the arrangement.
The welding fixture for automatic argon arc welding of automobile parts is characterized in that a screw rod 31 is arranged on a clamping seat 3 in a rotating mode along the X-axis direction, a first thread and a second thread are respectively arranged at two ends of the screw rod 31, the rotation direction of the first thread is opposite to that of the second thread, a clamping motor 32 is arranged on the clamping seat 3, the output end of the clamping motor 32 is connected with the screw rod 31, and sliding seats 4 of clamping assemblies at two ends of the clamping seat 3 are respectively connected with the first thread and the second thread in a threaded mode. Through the above arrangement, the clamping motor 32 is started, so that the screw 31 rotates forward or reversely, and the two sliding seats 4 can move close to each other or move away from each other, thereby completing the clamping or releasing of the workpiece.
The welding fixture for the automatic argon arc welding of the automobile parts further comprises a machine base 2, clamping seats 3 are arranged at two ends of the machine base 2, and the two clamping seats 3 are arranged opposite to each other. Through the arrangement, two ends of the workpiece can be clamped.
The welding fixture for automatic argon arc welding of automobile parts is characterized in that the machine base 2 is provided with a rotating motor 21, and the output end of the rotating motor 21 is connected with the clamping seat 3. The workpiece clamped by the clamping device is convenient to turn over.
According to the welding fixture for automatic argon arc welding of automobile parts, the driving block 5 is provided with the limiting groove 55 along the Y-axis direction, the sliding seat 4 is provided with the limiting pin 43, and the limiting pin 43 is movably arranged in the limiting groove 55. The movement of the driving block 5 in the X-axis direction is ensured by the above arrangement.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510957069.1A CN120606147B (en) | 2025-07-11 | 2025-07-11 | A welding fixture for automated argon arc welding of automotive parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510957069.1A CN120606147B (en) | 2025-07-11 | 2025-07-11 | A welding fixture for automated argon arc welding of automotive parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN120606147A true CN120606147A (en) | 2025-09-09 |
| CN120606147B CN120606147B (en) | 2025-12-02 |
Family
ID=96930836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510957069.1A Active CN120606147B (en) | 2025-07-11 | 2025-07-11 | A welding fixture for automated argon arc welding of automotive parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120606147B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090099278A (en) * | 2008-03-17 | 2009-09-22 | 현대자동차주식회사 | Jig Device for Electron Beam Welding Machine |
| CN109129529A (en) * | 2018-09-13 | 2019-01-04 | 湖南机电职业技术学院 | A kind of automated machine grip device and clamping method |
| CN208811949U (en) * | 2018-10-18 | 2019-05-03 | 重庆理工大学 | A flexible fixture based on magnetorheological fluid |
| CN220312314U (en) * | 2023-07-25 | 2024-01-09 | 芜湖增亿精密模具有限公司 | Automobile part tool clamp |
-
2025
- 2025-07-11 CN CN202510957069.1A patent/CN120606147B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090099278A (en) * | 2008-03-17 | 2009-09-22 | 현대자동차주식회사 | Jig Device for Electron Beam Welding Machine |
| CN109129529A (en) * | 2018-09-13 | 2019-01-04 | 湖南机电职业技术学院 | A kind of automated machine grip device and clamping method |
| CN208811949U (en) * | 2018-10-18 | 2019-05-03 | 重庆理工大学 | A flexible fixture based on magnetorheological fluid |
| CN220312314U (en) * | 2023-07-25 | 2024-01-09 | 芜湖增亿精密模具有限公司 | Automobile part tool clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN120606147B (en) | 2025-12-02 |
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