CN119035830A - Laser welding positioning system - Google Patents
Laser welding positioning system Download PDFInfo
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- CN119035830A CN119035830A CN202411550927.2A CN202411550927A CN119035830A CN 119035830 A CN119035830 A CN 119035830A CN 202411550927 A CN202411550927 A CN 202411550927A CN 119035830 A CN119035830 A CN 119035830A
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- 238000003466 welding Methods 0.000 title claims abstract description 57
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 21
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 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
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work aligning cylindrical work; Clamping devices therefor
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- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
本发明涉及激光焊接技术领域，具体说是一种激光焊接定位系统；包括工作台以及所述工作台上表面靠后位置的调节臂；所述调节臂端部固定连接焊接头；所述工作台上表面固定连接支块；所述支块转动连接着电机的输出轴；所述电机外壁通过固定块固连在支块上；所述电机输出轴固定连接第一转盘；所述第一转盘端面绕着中心均匀设置有滑槽；本发明通过将两个待焊接的管件套在多个定位条外侧，并控制多个定位条朝外扩张实现对焊接前的管件夹紧定位，相比较现有利用两个单独的夹具对管件进行夹紧定位的方式而言，本发明焊接定位效率更高，且不易出现两个管件错开的情况，使得激光焊接效率和质量得到提高。
The present invention relates to the field of laser welding technology, and specifically to a laser welding positioning system; it comprises a workbench and an adjusting arm at a rear position on the upper surface of the workbench; the end of the adjusting arm is fixedly connected to a welding head; the upper surface of the workbench is fixedly connected to a support block; the support block is rotatably connected to the output shaft of a motor; the outer wall of the motor is fixedly connected to the support block through a fixed block; the output shaft of the motor is fixedly connected to a first turntable; the end surface of the first turntable is evenly provided with slide grooves around the center; the present invention achieves clamping and positioning of the pipes before welding by sleeves of two pipes to be welded on the outside of a plurality of positioning strips and controlling the plurality of positioning strips to expand outwards. Compared with the existing method of clamping and positioning the pipes using two separate clamps, the present invention has higher welding positioning efficiency and is less likely to cause the two pipes to be misaligned, thereby improving the efficiency and quality of laser welding.
Description
Technical Field
The invention relates to the technical field of laser welding, in particular to a laser welding positioning system.
Background
The laser welding machine is a machine for processing laser materials, and the laser welding is to utilize high-energy laser pulse to locally heat the materials in micro areas, and the energy of laser radiation is guided to the internal diffusion of the materials through heat transfer to melt the materials to form a specific molten pool so as to achieve the purpose of welding. The laser welding technology is widely applied to the fields of mechanical manufacture, aerospace, automobile industry, powder metallurgy, biomedicine, microelectronics industry and the like. Before laser welding, the workpieces to be welded need to be clamped and positioned, so that the two workpieces to be welded can be accurately welded.
For the laser welding of the pipe, one of the clamps is required to be used for clamping one of the pipes, and the other clamp is required to be used for clamping the other pipe, and as the two pipes to be welded are clamped by the respective clamps, the laser welding process of the pipe is complicated and inconvenient, and in the use process of the two independent clamps, the pipe clamped by the two independent clamps is difficult to clamp and deviate, and finally the two pipes to be welded are difficult to align, so that the laser welding positioning effect is affected.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a laser welding positioning system, which is characterized in that two pipe fittings to be welded are sleeved outside a plurality of positioning strips, and the plurality of positioning strips are controlled to expand outwards to realize clamping and positioning of the pipe fittings before welding.
The technical scheme includes that the laser welding positioning system comprises a workbench and an adjusting arm, wherein the adjusting arm is arranged at the position, close to the rear, of the upper surface of the workbench, the end portion of the adjusting arm is fixedly connected with a welding head, the upper surface of the workbench is fixedly connected with a supporting block, the supporting block is rotatably connected with an output shaft of a motor, the outer wall of the motor is fixedly connected to the supporting block through a fixing block, the output shaft of the motor is fixedly connected with a first rotary table, a sliding groove is uniformly arranged on the end face of the first rotary table around the center, the sliding groove penetrates through the first rotary table axially, the sliding groove is connected with a sliding block in a sliding mode, the center of the first rotary table, which deviates from one face of the motor, is rotatably connected with a second rotary table, an inclined guide groove is uniformly arranged around the center, the guide groove penetrates through the second rotary table axially, a movable rod is movably connected in the guide groove, one end of the movable rod is fixedly connected with a corresponding sliding block, the other end of the movable rod is fixedly connected with a positioning strip, the positioning strip extends to the lower portion of the welding head, and the guide groove can drive a plurality of positioning strips to move synchronously or move away from the second rotary table.
Preferably, one surface of the first rotating disc, which is close to the second rotating disc, is provided with an annular groove coaxial with the first rotating disc; the bottom of the annular groove is uniformly and fixedly connected with a clamping block; the end face of the second rotary table is provided with a locking groove in a penetrating mode, the locking groove is arranged corresponding to the annular groove, the locking groove is connected with a locking block in a sliding mode, one face, away from the first rotary table, of the locking block is fixedly connected with a locking handle, one face, close to the second rotary table, of the locking handle is connected with the second rotary table through a first tension spring, and one end, away from the locking handle, of the locking block can be clamped between adjacent clamping blocks in the annular groove.
Preferably, the clamping block is provided with a first guide surface in the circumferential direction, one end, close to the clamping block, of the locking block is provided with a second guide surface in the circumferential direction, the second guide surface is in contact with the first guide surface under the rotation of the locking block, and the locking block and the clamping block are locked in a one-way mode.
The positioning strip is provided with two moving grooves on one surface far away from the central shaft of the second turntable, the groove depths of the two moving grooves on the positioning strip become shallow along with the mutual distance, the groove bottoms of the moving grooves close to the second turntable are connected with a first moving block in a sliding mode, one surface of the first moving block close to the second turntable is connected with the groove walls of the corresponding moving grooves through a second tension spring, the groove bottoms of the moving grooves far away from the second turntable are connected with a second moving block in a sliding mode, and one surface of the second moving block far away from the second turntable is connected with the groove walls of the corresponding moving grooves through a third tension spring.
The pull force of the second tension spring and the pull force of the third tension spring are larger than the gravity of the workpiece to be welded, the pull force of the second tension spring is smaller than the pull force of the third tension spring, and the speed of the third tension spring for pulling the second moving block to return is larger than the speed of the second tension spring for pulling the first moving block to return.
Preferably, the first moving block and the second moving block are provided with a compensation groove at one surface far away from the central shaft of the second turntable, the compensation groove is connected with the compensation block in a sliding way, and the compensation block is connected with the bottom of the compensation groove through a first spring.
Preferably, the end face of the second turntable is provided with an adjusting groove along the axial direction of the second turntable in a penetrating way; the adjusting grooves are uniformly distributed around the center of the second turntable, the adjusting grooves are connected with the adjusting block in a sliding mode, the guide grooves are arranged on the adjusting block in a penetrating mode, and the adjusting block can move along the adjusting grooves to be close to or far from the center of the second turntable.
The groove wall of the adjusting groove is provided with a plurality of square grooves, the square grooves are sequentially far away from the center of the second rotary table, one surface of the adjusting block, which is in sliding contact with the adjusting groove, is provided with an L-shaped groove, the other end of the L-shaped groove is communicated with one surface of the adjusting block, which is far away from the first rotary table, the L-shaped groove is in sliding connection with an L-shaped block, the L-shaped block is connected with the groove wall of the L-shaped groove through a second spring, one end of the L-shaped block can be clamped into the corresponding square groove, and the other end of the L-shaped block extends out of the L-shaped groove.
The beneficial effects of the invention are as follows:
1. The invention realizes clamping and positioning of the pipe fitting before welding by sleeving two pipe fittings to be welded on the outer sides of the positioning strips and controlling the outward expansion of the positioning strips, compared with the existing mode of clamping and positioning the pipe fitting by using two independent clamps, the welding and positioning device has higher welding and positioning efficiency, and the condition that the two pipe fittings are staggered is not easy to occur, so that the laser welding efficiency and quality are improved.
2. According to the invention, in the process of outwards expanding the three positioning strips, the two pipe fittings to be welded are enabled to move close to each other by the cooperation of the first moving block and the second moving block until the two pipe fittings to be welded are abutted against each other, so that the welding seam formed by the two pipe fittings to be welded is minimized, the step that a worker dials the two pipe fittings to be close to each other is omitted, and the pipe fittings are convenient to weld.
3. According to the invention, the first moving block and the second moving block can drive the corresponding compensating blocks to contact with the inner wall of the pipe fitting at the outer side, the compensating blocks are extruded to overcome the action of the compensating blocks on one side of the first moving block and the second moving block far away from the central shaft of the second turntable and are retracted into the compensating groove, and the compensating blocks are contacted with the inner wall of the pipe fitting by matching with the elasticity of the first spring, so that the clamping and positioning of the two pipe fittings with different inner diameters can be realized, and the application range of welding positioning is improved.
Drawings
The invention will be further described with reference to the drawings and embodiments.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of a spacer of the present invention;
FIG. 3 is a perspective view of the device of FIG. 1 at another angle;
FIG. 4 is a perspective view of the device of FIG. 2 at another angle;
FIG. 5 is a cross-sectional view of FIG. 4;
FIG. 6 is a perspective view of a first turntable and a second turntable according to the present invention;
FIG. 7 is a perspective view of a second turntable in the present invention;
FIG. 8 is a perspective view of a first turntable in the present invention;
In the drawing, a workbench 1, an adjusting arm 2, a welding head 21, a supporting block 3, a motor 31, a first rotating disc 4, a sliding groove 41, a sliding block 42, an annular groove 43, a clamping block 44, a first guide surface 441, a second rotating disc 5, a locking groove 51, a locking block 52, a second guide surface 521, a locking handle 53, a first tension spring 54, an adjusting groove 55, a square groove 56, an adjusting block 6, a guide groove 61, a movable rod 62, an L-shaped groove 63, an L-shaped block 64, a second spring 65, a positioning strip 7, a moving groove 71, a first moving block 8, a second tension spring 81, a compensating groove 82, a compensating block 83, a first spring 84, a second moving block 9 and a third tension spring 91.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 8, the present invention includes the following embodiments:
example 1:
A laser welding positioning system comprises a workbench 1 and an adjusting arm 2, wherein the adjusting arm 2 is arranged at the rear position of the upper surface of the workbench 1, the end part of the adjusting arm 2 is fixedly connected with a welding head 21, the upper surface of the workbench 1 is fixedly connected with a supporting block 3, the supporting block 3 is rotatably connected with an output shaft of a motor 31, the outer wall of the motor 31 is fixedly connected to the supporting block 3 through a fixed block, the output shaft of the motor 31 is fixedly connected with a first rotating disc 4, a sliding groove 41 is uniformly arranged on the end surface of the first rotating disc 4 around the center, the sliding groove 41 is axially penetrated along the first rotating disc 4, the sliding groove 41 is internally and slidably connected with a sliding block 42, the center of one surface of the first rotating disc 4, which is far away from the motor 31, is rotatably connected with a second rotating disc 5, an inclined guide groove 61 is uniformly arranged on the end surface of the second rotating disc 5 around the center, the guide groove 61 is axially penetrated along the second rotating disc 5, a movable rod 62 is movably connected in the guide groove 61, one end of the movable rod 62 is fixedly connected with the corresponding sliding block 42, the other end of the movable rod 7 is fixedly connected with the positioning strip 7, the positioning strip 7 extends below the sliding groove 41, and the second rotating disc 21 can synchronously rotate along the guide groove 61 or move towards the second rotating disc 7.
In the embodiment, an annular groove 43 coaxial with the first rotating disc 4 is formed in the surface, close to the second rotating disc 5, of the first rotating disc 4, clamping blocks 44 are uniformly and fixedly connected to the bottom of the annular groove 43, a locking groove 51 is formed in the end face of the second rotating disc 5 in a penetrating mode, the locking groove 51 is arranged corresponding to the annular groove 43, a locking piece 52 is connected in a sliding mode in the locking groove 51, a lock handle 53 is fixedly connected to the surface, away from the first rotating disc 4, of the locking piece 52, the surface, close to the second rotating disc 5, of the locking piece 53 is connected with the second rotating disc 5 through a first tension spring 54, and one end, away from the lock handle 53, of the locking piece 52 can be clamped between the adjacent clamping blocks 44 in the annular groove 43.
In this embodiment, the latch 44 is provided with a first guiding surface 441 in the circumferential direction, one end of the lock block 52 near the latch 44 is provided with a second guiding surface 521 in the circumferential direction, the second guiding surface 521 contacts with the first guiding surface 441 when the lock block 52 rotates, and the lock block 52 is locked with the latch 44 in a unidirectional manner.
Specifically, a worker places two pipes to be welded on the upper surface of the workbench 1, then under the condition that the movable rod 62 is extremely close to the center of the second turntable 5, the plurality of positioning strips 7 move along with the movable rod 62 to be close to the center of the second turntable 5, then the worker picks a shorter workpiece of the two pipes to be sleeved on the outer sides of the plurality of positioning strips 7 first, taking the number of the positioning strips 7 as three as an example, after one pipe is sleeved on the outer sides of the three positioning strips 7, the other pipe is sleeved on the outer sides of the three positioning strips 7, then under the condition that the second turntable 5 is controlled to be not moved, the first turntable 4 is controlled to rotate, so that relative rotation is generated between the second turntable 5 and the first turntable 4, and the outer wall edge positions of the second turntable 5 are provided with anti-skid parts for skid prevention, the situation that the first rotating disc 4 and the second rotating disc 5 skid is avoided, the clamping blocks 44 in the annular groove 43 are driven to circumferentially move in the rotating process of the first rotating disc 4, the clamping blocks 44 can drive the first guide surfaces 441 to press the second guide surfaces 521 on the locking blocks 52 in the rotating process of the first rotating disc 4, the locking blocks 52 drive the locking handles 53 to be far away from the first rotating disc 4 under the pressing of the clamping blocks 44, the first tension springs 54 can be pulled in the process that the locking handles 53 are far away from the first rotating disc 4, the locking blocks 52 are moved out of the annular groove 43 from the annular groove 43 to retract into the locking grooves 51 to avoid, so that the clamping blocks 44 in the annular groove 43 can pass through the locking blocks 52 in the rotating process of the first rotating disc 4, the first rotating disc 4 can smoothly rotate relative to the second rotating disc 5 due to unidirectional locking of the locking blocks 52, the three sliding grooves 41 can be driven to rotate around the center of the first rotating disc 4 in the rotating process, the sliding block 42 in the sliding groove 41 is driven to rotate around the center of the first rotating disc 4 in the rotating process of the first rotating disc 4, the sliding block 42 drives the movable rod 62 to generate the movement of the first rotating disc 4 in the circumferential direction, the movable rod 62 is movably connected in the guide groove 61, one end of the guide groove 61, which is close to the center of the second rotating disc 5, and one end of the guide groove 61, which is far away from the center of the second rotating disc 5, deviate in the circumferential direction of the second rotating disc 5, namely the guide groove 61 is obliquely arranged on the second rotating disc 5, the movable rod 62 is driven by the sliding block 42 to be guided by the guide groove 61, so that the movable rod 62 can move away from the center of the second rotating disc 5 in the moving process of the movable rod 62 can drive the positioning strips 7 to move synchronously, so that the three positioning strips 7 are driven by the respective movable rods 62 to move away from the center of the second rotating disc 5, and the three positioning strips 7 can expand inside two pipes in the moving process of being far away from each other, so that the three positioning strips 7 are close to the inner wall of the pipe fitting after expansion, under the condition that the inner wall of the pipe fitting is about to be tightly abutted by the three positioning strips 7, the relative rotation of the first rotary disc 4 and the second rotary disc 5 is stopped, then the two pipe fittings at the outer sides of the three positioning strips 7 are stirred, so that the two pipe fittings are close to and contacted with each other, the welding seam between the two pipe fittings is avoided from being greatly influenced, the first rotary disc 4 is controlled to rotate relative to the second rotary disc 5 again after the two pipe fittings are contacted with each other, the three positioning strips 7 are further expanded, the three positioning strips 7 are abutted against the inner wall of the two pipe fittings, the first rotary disc 4 is stopped to rotate relative to the second rotary disc 5, the first tension spring 54 pulls the lock handle 53 to drive the lock block 52 to be close to the first rotary disc 4 along the lock groove 51, one end of the lock block 52, which is far away from the lock handle 53, can be clamped between the adjacent clamping blocks 44 in the annular groove 43, the first rotating disc 4 and the second rotating disc 5 cannot rotate backwards, the three positioning strips 7 are kept in an expanded state, clamping and locking of the inner wall of the pipe fitting are achieved, after positioning of the two pipe fittings before welding is completed, the control system can control the adjusting arm 2 to drive the laser head to align with the contact positions of the two pipe fittings, the laser head can emit high-energy laser pulses to weld, the motor 31 can rotate in the working process of the laser head, the rotating motor 31 can drive the first rotating disc 4 to rotate, the first rotating disc 4 can drive the second rotating disc 5 and the three movable rods 62 to synchronously rotate, the three movable rods 62 can drive the three corresponding positioning strips 7 to synchronously rotate, and the three positioning strips 7 can drive the two pipe fittings to finish welding and positioning to rotate in the rotating process, so that the pipe fitting finishes the laser welding process in the rotating process; after the laser welding of the pipe fitting is finished, the lock handle 53 is shifted to move away from the first rotating disc 4, the lock handle 53 is shifted to pull the first tension spring 54 and drive the lock block 52 to move away from the first rotating disc 4 along the lock groove 51, the lock block 52 is moved out of the annular groove 43 and enters the lock groove 51 to avoid, so that the first rotating disc 4 and the second rotating disc 5 are unlocked, then the first rotating disc 4 and the second rotating disc 5 are controlled to generate opposite rotation, the sliding block 42 and the movable rod 62 connected with the sliding block 42 are driven to move in the opposite rotation process of the first rotating disc 4, the movable rod 62 is driven to move close to the center of the first rotating disc 4 under the guide of the guide groove 61, the movable rod 62 drives the corresponding positioning strips 7 to move, the three positioning strips 7 are contracted at the inner side of the pipe fitting, the locking of the inner wall of the pipe fitting is released, and finally the pipe fitting subjected to laser welding is taken down from the outer side of the positioning strips 7;
the invention realizes clamping and positioning of the pipe fitting before welding by sleeving two pipe fittings to be welded on the outer sides of the positioning strips 7 and controlling the outward expansion of the positioning strips 7, compared with the existing mode of clamping and positioning the pipe fitting by using two independent clamps, the welding and positioning device has higher welding and positioning efficiency, and the condition that the two pipe fittings are staggered is not easy to occur, so that the laser welding efficiency and quality are improved.
Example 2:
The positioning strip 7 is provided with two moving grooves 71 on one surface far away from the central shaft of the second turntable 5, the groove depths of the two moving grooves 71 on the positioning strip 7 become shallow along with the mutual distance, the groove bottoms of the moving grooves 71 close to the second turntable 5 are connected with a first moving block 8 in a sliding mode, one surface of the first moving block 8 close to the second turntable 5 is connected with the groove walls of the corresponding moving grooves 71 through second tension springs 81, the groove bottoms of the moving grooves 71 far away from the second turntable 5 are connected with a second moving block 9 in a sliding mode, and one surface of the second moving block 9 far away from the second turntable 5 is connected with the groove walls of the corresponding moving grooves 71 through third tension springs 91.
In this embodiment, the pull forces of the second tension spring 81 and the third tension spring 91 are both greater than the gravity of the workpiece to be welded, the pull force of the second tension spring 81 is smaller than the pull force of the third tension spring 91, and the speed of the third tension spring 91 pulling the second moving block 9 to return is greater than the speed of the second tension spring 81 pulling the first moving block 8 to return.
Specifically, after two pipe fittings to be welded are placed on the outer sides of three positioning strips 7, the two pipe fittings to be welded are respectively placed in a moving groove 71 close to a second rotary table 5 and a moving groove 71 far away from the second rotary table 5, the pipe fitting close to the second rotary table 5 is contacted with a first moving block 8, the pipe fitting far away from the second rotary table 5 is contacted with a second moving block 9, then the three positioning strips 7 are controlled to move towards the direction far away from the central axis of the second rotary table 5, so that the three positioning strips 7 are outwards expanded, the first moving block 8 and the second moving block 9 are driven to be far away from the central axis of the second rotary table 5 in the outwards expanding process, one surface of the first moving block 8 and one surface of the second moving block 9 far away from the central axis of the second rotary table 5 are contacted with the inner wall of the corresponding pipe fitting, and a plurality of first moving blocks 8 are contacted with the inner wall of the corresponding pipe fitting after the respective positioning strips 7 are expanded, and a static friction force is formed between the first moving block 8 and the inner wall of the pipe fitting, so that the first moving block 8 and the inner wall of the corresponding pipe fitting are difficult to generate relative movement, and the first moving block 8 is continuously outwards expanded along with the positioning strips 7, and the first moving block 8 is outwards expanded, and the first moving block 8 is enabled to be closely separated from the second moving block 8 and the second moving block 8 is driven to move away from the second inner wall 5 in the opposite direction to be far from the central axis of the second rotary table 5, and is far from the inner wall of the corresponding pipe fitting 8, and is far from the inner wall 8, and is separated from the second moving block 8, and is separated from the corresponding moving block 8 and is separated from the moving block 5 and has a moving block 5; similarly, the plurality of second moving blocks 9 are contacted with the inner walls of the corresponding pipe fittings after the respective positioning strips 7 are expanded, the pipe fitting abutted by the first moving block 8 and the pipe fitting abutted by the second moving block 9 are not the same pipe fitting, the second moving block 9 and the inner walls of the corresponding pipe fitting form static friction force, along with the outward expansion of the positioning strips 7, the second moving blocks 9 are extruded on the inner walls of the corresponding pipe fittings, so that the second moving blocks 9 slide in the corresponding moving grooves 71 and move close to the second rotary table 5, the third tension springs 91 are pulled to finish the force accumulation process, the second moving blocks 9 are abutted against the inner walls of the corresponding pipe fittings, so that the second moving blocks 9 and the inner walls of the pipe fittings are difficult to generate relative movement, the second moving blocks 9 drive the pipe fittings to move close to the second rotary table 5, the two pipe fittings to be welded are automatically moved close to each other by the cooperation of the first moving blocks 8 and the second moving blocks 9 in the outward expansion process of the three positioning strips 7 until the two pipe fittings to be welded are abutted against each other, so that the welding seam formed by the two pipe fittings to be welded is minimized, and the step that workers toggle the two pipe fittings are mutually close to each other is omitted, so that the pipe fittings are convenient to be welded;
After the laser welding of the two pipe fittings is completed, the two pipe fittings form a whole, along with the inward contraction of the two three positioning strips 7, the second moving block 9 in the moving groove 71 is reduced by the extrusion force of the positioning strips 7, the tension force of the second tension spring 81 is smaller than that of the third tension spring 91, so that the speed of the second tension spring 81 for pulling the first moving block 8 is smaller than that of the third tension spring 91 for pulling the second moving block 9, in the inward contraction process of the three positioning strips 7, the third tension spring 91 firstly pulls the second moving block 9 to be far away from the second rotary table 5, in addition, the friction force between the second moving block 9 and the inner wall of the pipe fitting is larger than that between the first moving block 8 and the inner wall of the pipe fitting, and therefore, under the pulling of the third tension spring 91, the second moving block 9 drives the welded pipe fitting to be far away from the second rotary table 5, and the welded pipe fitting is dismounted from the three positioning strips 7 in an auxiliary manner.
Example 3:
The first moving block 8 and the second moving block 9 are provided with a compensating groove 82 on the side far away from the central shaft of the second turntable 5, the compensating groove 82 is connected with a compensating block 83 in a sliding way, and the compensating block 83 is connected with the bottom of the compensating groove 82 through a first spring 84.
Specifically, in the process of outwards expanding the three positioning strips 7, the three positioning strips 7 can drive the first moving block 8 and the second moving block 9 to be far away from the central shaft of the second turntable 5, the first moving block 8 and the second moving block 9 can drive the corresponding compensating block 83 to be in contact with the inner wall of the pipe fitting on the outer side, the compensating block 83 is extruded to retract into the compensating groove 82 against the action of the first spring 84, and the compensating block 83 is matched with the elastic force of the first spring 84 because the first moving block 8 and the second moving block 9 are far away from the compensating block 83 on one side of the central shaft of the second turntable 5, so that the compensating block 83 is in contact with the inner wall of the pipe fitting, and the pipe fittings with two different inner diameters can be clamped and positioned, and the application range of welding positioning is improved.
Example 4:
The end face of the second turntable 5 is provided with an adjusting groove 55 in a penetrating mode along the axial direction of the second turntable 5, the adjusting grooves 55 are uniformly distributed around the center of the second turntable 5, the adjusting groove 55 is connected with an adjusting block 6 in a sliding mode, the guiding groove 61 is arranged on the adjusting block 6 in a penetrating mode, and the adjusting block 6 can move along the adjusting groove 55 to be close to or far away from the center of the second turntable 5.
In this embodiment, the groove wall of the adjusting groove 55 is provided with a plurality of square grooves 56, the square grooves 56 are sequentially far away from the center of the second turntable 5, one surface of the adjusting block 6, which is in sliding contact with the adjusting groove 55, is provided with an L-shaped groove 63, the other end of the L-shaped groove 63 is communicated with one surface of the adjusting block 6, which is far away from the first turntable 4, the L-shaped groove 63 is slidably connected with an L-shaped block 64, the L-shaped block 64 is connected with the groove wall of the L-shaped groove 63 through a second spring 65, and one end of the L-shaped block 64 can be clamped into the corresponding square groove 56, and the other end of the L-shaped block 64 extends out of the L-shaped groove 63.
Specifically, before working by using the welding positioning system, a worker can adjust the adjusting block 6 according to the inner diameter and the shape of the welded pipe, specifically, control the second turntable 5 to rotate relative to the first turntable 4, so that the sliding groove 41 corresponds to the adjusting groove 55 one by one, then dial one end of the L-shaped block 64 to overcome the sliding of the second spring 65 along the L-shaped groove 63, move out of the corresponding square groove 56 after dial the L-shaped block 64, unlock the adjusting block 6 and the adjusting groove 55, and then control a single adjusting block 6, a plurality of adjusting blocks 6 or all adjusting blocks 6 to sequentially depart from the central axis of the second turntable 5, so that the plurality of positioning strips 7 can be suitable for the inner wall clamping positioning requirements of pipe fittings with different shapes after being expanded under the condition that part of the adjusting blocks 6 are apart from the central axis of the second turntable 5, and the movable range of the plurality of positioning strips 7 is improved after the distance from the central axis of the second turntable 5 is equal, so that the plurality of positioning strips 7 clamp the inner wall clamping of pipe fittings with different inner diameters, and complete the inner wall clamping of the adjusting blocks 6, and release the L-shaped block 64 and realize the locking of the corresponding L-shaped block 64 in the second turntable 55.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention, and furthermore, the terms "first", "second", "third", etc. are merely used for distinguishing the description, and should not be construed as indicating or implying relative importance.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The laser welding positioning system comprises a workbench and an adjusting arm, wherein the adjusting arm is arranged at the position, close to the upper surface of the workbench, the end part of the adjusting arm is fixedly connected with a welding head, the laser welding positioning system is characterized in that the upper surface of the workbench is fixedly connected with a supporting block, the supporting block is rotatably connected with an output shaft of a motor, the outer wall of the motor is fixedly connected with the supporting block through a fixed block, the output shaft of the motor is fixedly connected with a first rotary table, a sliding groove is uniformly formed in the end face of the first rotary table around the center, the sliding groove is axially penetrated along the first rotary table, the sliding groove is internally and slidably connected with a sliding block, the center of the first rotary table, which is deviated from the motor, is rotatably connected with a second rotary table, an inclined guide groove is uniformly formed in the end face of the second rotary table around the center, the guide groove is axially penetrated along the second rotary table, one end of the movable rod is fixedly connected with the corresponding sliding block, the positioning bar is fixedly connected with the other end of the movable rod, the positioning bar extends to the lower part of the welding head, and the guide groove can drive a plurality of positioning bars to synchronously move away from or approach the movable rotary table under the second rotation.
2. The laser welding positioning system is characterized in that an annular groove coaxial with the first rotating disc is formed in the surface, close to the second rotating disc, of the first rotating disc, clamping blocks are uniformly and fixedly connected to the bottom of the annular groove, a locking groove is formed in the end face of the second rotating disc in a penetrating mode, the locking groove is arranged corresponding to the annular groove, a locking block is connected in a sliding mode in the locking groove, a locking handle is fixedly connected to the surface, away from the first rotating disc, of the locking block, the surface, close to the second rotating disc, of the locking handle is connected with the second rotating disc through a first tension spring, and one end, away from the locking handle, of the locking block can be clamped between adjacent clamping blocks in the annular groove.
3. The laser welding positioning system according to claim 2, wherein the clamping block is provided with a first guide surface in the circumferential direction, one end of the locking block, which is close to the clamping block, is provided with a second guide surface in the circumferential direction, the second guide surface is in contact with the first guide surface under rotation of the locking block, and the locking block is locked with the clamping block in a unidirectional mode.
4. The laser welding positioning system is characterized in that two moving grooves are formed in one surface, away from a central shaft of the second rotary table, of the positioning strip, the groove depths of the two moving grooves on the positioning strip become shallow along with the fact that the two moving grooves are away from each other, the groove bottoms of the moving grooves close to the second rotary table are connected with a first moving block in a sliding mode, one surface, close to the second rotary table, of the first moving block is connected with the groove walls of the corresponding moving grooves through a second tension spring, the groove bottoms of the moving grooves away from the second rotary table are connected with a second moving block in a sliding mode, and one surface, away from the second rotary table, of the second moving block is connected with the groove walls of the corresponding moving grooves through a third tension spring.
5. The laser welding positioning system of claim 4, wherein the pull force of the second tension spring and the pull force of the third tension spring are larger than the gravity of the workpiece to be welded, the pull force of the second tension spring is smaller than the pull force of the third tension spring, and the speed of the third tension spring for pulling the second moving block to return is larger than the speed of the second tension spring for pulling the first moving block to return.
6. The laser welding positioning system of claim 4, wherein the first moving block and the second moving block are provided with a compensating groove on one surface far away from the central shaft of the second turntable, the compensating groove is slidably connected with the compensating block, and the compensating block is connected with the bottom of the compensating groove through a first spring.
7. The laser welding positioning system according to claim 1, wherein the second turntable is provided with adjusting grooves penetrating through the end face of the second turntable along the axial direction of the second turntable, the adjusting grooves are uniformly distributed around the center of the second turntable, the adjusting grooves are connected with adjusting blocks in a sliding mode, the guide grooves penetrate through the adjusting blocks, and the adjusting blocks can move along the adjusting grooves close to or far from the center of the second turntable.
8. The laser welding positioning system of claim 7 is characterized in that a plurality of square grooves are formed in the groove wall of the adjusting groove, the square grooves are sequentially far away from the center of the second rotary table, an L-shaped groove is formed in the surface, in sliding contact with the adjusting block, of the adjusting block, the other end of the L-shaped groove is communicated with the surface, far away from the first rotary table, of the adjusting block, an L-shaped block is connected in a sliding mode in the L-shaped groove, the L-shaped block is connected with the groove wall of the L-shaped groove through a second spring, one end of the L-shaped block can be clamped into the corresponding square groove, and the other end of the L-shaped block extends out of the L-shaped groove.
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| CN202411550927.2A CN119035830B (en) | 2024-11-01 | 2024-11-01 | Laser welding positioning system |
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| CN119035830B CN119035830B (en) | 2025-01-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120421786A (en) * | 2025-05-27 | 2025-08-05 | 嘉兴永励精密钢管有限公司 | Laser welding auxiliary device for automobile monocular vibration damper |
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| CN119035830B (en) | 2025-01-28 |
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