CN109262191B - Automatic welding turnover positioner - Google Patents
Automatic welding turnover positioner Download PDFInfo
- Publication number
- CN109262191B CN109262191B CN201811453139.6A CN201811453139A CN109262191B CN 109262191 B CN109262191 B CN 109262191B CN 201811453139 A CN201811453139 A CN 201811453139A CN 109262191 B CN109262191 B CN 109262191B
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- Prior art keywords
- clamping
- linear slide
- slide rail
- base
- automatic welding
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- 238000003466 welding Methods 0.000 title claims abstract description 43
- 230000007306 turnover Effects 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000035939 shock Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses an automatic welding turnover positioner which comprises a base, wherein a linear slide rail is arranged on the base, a fixed support is arranged on one side of the linear slide rail, a movable support capable of moving along the linear slide rail is arranged on the other side of the linear slide rail, and the movable support is connected with a gear rack transmission mechanism arranged on the base; the clamping device is characterized in that rotating mechanisms are arranged on opposite side surfaces of the fixed support and the movable support, clamping mechanisms used for clamping workpieces are arranged on the two rotating mechanisms, and notches for placing the workpieces from top to bottom are arranged at the upper ends of the rotating mechanisms, the fixed support and the movable support. The invention can be suitable for overturning beam structural members with various lengths, and the length of the beam can exceed the span clamped at two ends of the equipment; even if a longer workpiece is clamped, lengthening equipment is not needed, so that the occupied area of the equipment is greatly reduced; the workpiece can be automatically clamped and positioned after being overturned, and the full-automatic welding production can be realized by matching with a robot welding system.
Description
Technical Field
The invention relates to the field of robot automatic welding, in particular to an automatic welding turnover positioner which can accurately and quickly tool welding beams with various sizes.
Background
At present, the engineering machinery industry mostly adopts manual welding, and manual work and travelling crane are adopted during overturning, so that the efficiency is low and the safety is not ensured. The welding quality is not guaranteed while the welding labor intensity is high. The traditional positioner can replace manual overturning, so that the strength is reduced, but the welding of workpieces exceeding clamping spans at two ends of equipment cannot be solved. In recent years, a large number of welding robots are adopted to replace common workers for welding, so that the quality is improved, the yield is improved, and the cost is reduced. In the welding process of the robot, a position shifter and a tool clamp are matched, and workpieces to be welded are required to be positioned according to the requirements, so that the welding precision of the robot is ensured in the welding process, and the welding quality is improved. Generally, due to the size difference of different welding workpieces, corresponding clamps are required to be equipped, so that cost waste is caused; positioning and fixing are carried out on different tool clamps, so that time is wasted, and production efficiency is reduced. When welding seams are arranged on each surface of the workpiece, the workpiece needs to be turned over and then clamped for the second time, so that the production efficiency is reduced.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide an automatic welding turnover positioner which can be suitable for turnover of beam structural members with various lengths, and the length of the beam can exceed the clamping distance of two ends of equipment.
In order to achieve the above purpose, the invention adopts the following technical scheme: an automatic welding turnover positioner comprises a base, wherein a linear slide rail is arranged on the base, a fixed support is arranged on one side of the linear slide rail, a movable support capable of moving along the linear slide rail is arranged on the other side of the linear slide rail, and the movable support is connected with a gear rack transmission mechanism arranged on the base; the clamping device is characterized in that rotating mechanisms are arranged on opposite side surfaces of the fixed support and the movable support, clamping mechanisms used for clamping workpieces are arranged on the two rotating mechanisms, and notches for placing the workpieces from top to bottom are arranged at the upper ends of the rotating mechanisms, the fixed support and the movable support.
The part of the clamping beam of the clamping mechanism is positioned at the upper end of the clamping beam, and corresponding gaps are arranged on the rotating mechanism, the fixed support and the movable support, so that the two sides of the beam are not limited, and the clamping span can exceed the clamping span at the two ends of the equipment.
Further, the fixed bracket and the movable bracket on one side relative to the rotating mechanism are respectively provided with a clamping unit which can move up and down and is used for clamping a workpiece.
Preferably, the clamping unit comprises a fixedly placed hydraulic cylinder, a top rod of the hydraulic cylinder faces upwards and is fixedly connected with the clamping shell, openings are formed in the upper end and the lower end of the clamping shell, a first clamping arm and a second clamping arm extending out of the openings in the upper end of the clamping shell are arranged in the clamping shell, and a group of cylinder assemblies A for driving the first clamping arm and the second clamping arm to move oppositely or reversely are arranged on the clamping shell.
The cylinder assemblies A are two cylinders which are oppositely arranged, each cylinder is connected with the first clamping arm and the second clamping arm respectively, and a group of linear guide assemblies can be arranged on the inner side surfaces of the first clamping arm and the second clamping arm for stabilizing the first clamping arm and the second clamping arm.
Preferably, guide sleeves which are communicated up and down are arranged on two sides of the clamping shell, and guide posts with fixed upper ends and lower ends are arranged in the guide sleeves. The stability of the guide column in the up-and-down operation is ensured by the guide column.
Further, the rotating mechanism comprises an arc-shaped piece with a notch at the upper end, the center of the arc-shaped piece is fixed on a corresponding fixed support or movable support through a rotating shaft, a gear strip is arranged at the outer edge of the inner side of the arc-shaped piece, a driving motor is arranged on the corresponding fixed support or movable support, and a driving rod of the driving motor is positioned on the outer side of the gear strip and is provided with a driving gear meshed with the gear strip. The driving motor drives the driving gear to rotate, and then drives the gear strip to slide relatively, and the gear strip can rotate relatively to the arc-shaped piece due to the fact that the driving gear is fixed relative to the fixed support and the movable support and the arc-shaped piece is rotated.
Further, the clamping mechanism comprises a clamping shell fixedly arranged on the arc-shaped piece, openings are formed in the upper end and the lower end of the clamping shell, a third clamping arm and a fourth clamping arm extending out of the openings in the clamping shell are arranged in the clamping shell, and a group of air cylinder assemblies B for driving the third clamping arm and the fourth clamping arm to move oppositely or back to back are arranged on the arc-shaped piece. Bolt holes are reserved at the upper ends of the third clamping arm and the fourth clamping arm, so that other components can be installed, and the application field of the clamping arms is improved.
Preferably, a row of fixing seats are arranged on the left side and the right side of the lower end of the base, fixing holes are formed in the fixing seats, and shock pads are arranged at the lower ends of the fixing seats. The fixing base can be fixed on the base through welding, and the shock pad on the fixing base is used for buffering stress, so that a plurality of points are supported when the base is stressed, the stress is balanced, and the placement stability and the firmness of the base are improved.
Preferably, the upper cover of the clamping mechanism is covered with a cover plate, the left side, the right side and the lower end of the cover plate are downward extended to form a connecting plate, and the three sections of connecting plates are sequentially connected and fixed on the rotating mechanism. The cover plate is provided with a hollow-out part for saving materials, isolating the clamping mechanism from site personnel and protecting personnel safety.
Preferably, two ends of the linear slide rail are provided with blocking parts with damping function. The blocking part comprises a supporting plate placed on the base or the linear slide rail, and a blocking piece made of rubber is arranged on one side of the supporting plate, facing the linear slide rail, and is used for preventing the movable support on the linear slide rail from being separated.
Compared with the traditional positioner for overturning the cross beam, the invention can be suitable for overturning cross beam structural members with various lengths, and the length of the cross beam can exceed the span clamped at two ends of the equipment; even if a longer workpiece is clamped, lengthening equipment is not needed, so that the occupied area of the equipment is greatly reduced; the workpiece can be automatically clamped and positioned after being overturned, and the full-automatic welding production can be realized by matching with a robot welding system.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a schematic perspective view (with the cover plate removed) of an embodiment of the present invention.
In the figure:
1-a base; 2-linear slide rails; 3-fixing seats; 4-a barrier; 5-fixing a bracket; 6-a movable bracket; 7-a rotation mechanism; 71-arc-shaped pieces; 72-gear strips; 73-a drive gear; 74-driving a motor; 8-a clamping mechanism; 81-a clamping housing; 82-a third clamping arm; 83-fourth clamping arm; 9-a clamping unit; 91-clamping the housing; 92-a first clamping arm; 93-a second clamping arm; 94-guide posts; 10-cover plate.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Examples
Referring to fig. 1 and 2, an automatic welding turnover positioner in this embodiment includes a base 1, two parallel linear slide rails 2 are disposed on the base 1, a fixed support 5 is disposed on one side of the linear slide rails 2, a movable support 6 capable of moving along the linear slide rails 2 is disposed on the other side of the linear slide rails 2, and the movable support 6 is connected with a rack and pinion transmission mechanism disposed on the base 1. Specifically, the rack and pinion transmission mechanism comprises a driving motor, a driving gear connected with a driving shaft of the driving motor, and a rack fixed at the bottom of the movable bracket 6, and the driving gear is meshed with the rack to realize linear movement of the movable bracket 6. In this embodiment, the driving motor is fixed on the base 1, a gear groove for placing the driving gear is provided on the upper end surface of the base 1, a rack groove for placing the rack is provided at the bottom of the movable support 6, and after the driving gear is meshed with the rack, the height of a part of the body between the movable support 6 and the base 1 is consistent with the height of the sliding rail 2.
The clamping device is characterized in that rotating mechanisms 7 are arranged on opposite side surfaces of the fixed support 5 and the movable support 6, clamping mechanisms 8 used for clamping workpieces are arranged on the two rotating mechanisms 7, and notches for placing cross beams from top to bottom are arranged at the upper ends of the rotating mechanisms 7, the fixed support 5 and the movable support 6. The fixed bracket 5 and the movable bracket 6 on the side opposite to the rotating mechanism 7 are respectively provided with a clamping unit 9 which can move up and down and is used for clamping a workpiece. In this embodiment, the structures of the respective parts on the fixed bracket 5 and the movable bracket 6 are the same, that is, the structures of the clamping mechanism, the rotating mechanism, and the clamping unit thereon are identical, and for convenience of description, the following description will be made in a unified manner.
In this embodiment, the clamping unit 9 includes two hydraulic cylinders fixedly disposed on the fixed support 5 and the movable support 6, the ejector pins of the hydraulic cylinders face upwards and are fixedly connected with the clamping housing 91, openings are formed at the upper and lower ends of the clamping housing 91, a first clamping arm 92 and a second clamping arm 93 extending out of the openings at the upper ends are disposed in the clamping housing 91, and a group of cylinder assemblies a for driving the first clamping arm 92 and the second clamping arm 93 to move in opposite directions or in opposite directions are disposed on the clamping housing 91. The above-mentioned a group of cylinder assemblies are two cylinders that set up relatively, and every cylinder links to each other with first arm 92, second arm 93 respectively, wherein in order to make the stability of first arm, second arm, can be provided with a set of linear guide assembly at the medial surface of first arm, second arm (linear guide assembly is prior art, can refer to the chinese novel patent of application number 201720998466.4). The guide sleeves which are communicated up and down are arranged on two sides of the clamping shell 91, guide columns 94 are arranged in the guide sleeves, the upper ends and the lower ends of the guide columns 94 are fixed on the fixed support 5 or the movable support 6, and as can be seen from fig. 1, the guide columns 94 guarantee the stability of the guide columns in the up-down operation.
In this embodiment, the rotating mechanism 7 includes an arc-shaped member 71 with a notch at the upper end, the center of the arc-shaped member 71 is fixed on the corresponding fixed bracket 5 or movable bracket 6 through a rotating shaft, a gear strip 72 is disposed at the inner periphery of the arc-shaped member 71, a driving motor 74 is disposed on the corresponding fixed bracket 5 or movable bracket 6, and a driving rod of the driving motor 74 is disposed outside the gear strip 72 and is provided with a driving gear 73 engaged with the gear strip 72. The driving motor 74 drives the driving gear 73 to rotate, so as to drive the gear strip 72 to slide relatively, and further realize the rotation of the arc-shaped piece. And the intersection precision of the workpiece during overturning is improved through gear meshing driving.
In this embodiment, the clamping mechanism 8 includes a clamping housing 81 fixedly disposed on the arc member 71, openings are formed at the upper and lower ends of the clamping housing 81, a third clamping arm 82 and a fourth clamping arm 83 extending out of the openings at the upper ends are disposed in the clamping housing 81, and a set of air cylinder assemblies B for driving the third clamping arm 82 and the fourth clamping arm 83 to move in opposite directions or in opposite directions are disposed on the arc member 71. The cylinder assembly B corresponds to the cylinder assembly a, and is composed of two cylinders fixed to the arc-shaped member 71 and connected to the lower ends of the third clamping arm 82 and the fourth clamping arm 83. In order to protect personnel, the upper cover of the clamping mechanism 8 is covered with a cover plate 10, the left side, the right side and the lower end of the cover plate 10 are all extended downwards to form a connecting plate, and three sections of connecting plates are sequentially connected and fixed on the arc-shaped piece 71. The cover plate 10 is provided with a hollow-out part for saving materials, isolating the clamping mechanism from site personnel and protecting personnel safety.
The upper ends of the first clamping arm 92, the second clamping arm 93, the third clamping arm 82 and the fourth clamping arm 83 in this embodiment are reserved with bolt holes, so that other components can be mounted, and the application field of the clamping device is improved.
In this embodiment, the two ends of the linear slide rail 2 are both provided with blocking portions 4, the blocking portions 4 include a support plate placed on the base 1 or the linear slide rail 2, and a blocking piece made of rubber is disposed on one side of the support plate facing the linear slide rail 2, so as to prevent the movable support 6 on the linear slide rail 2 from being disengaged.
In this embodiment, a row of fixing seats 3 are disposed on the left and right sides of the lower end of the base 1, and shock pads are disposed on the lower end of the fixing seats 3. The fixing base 3 can be fixed on the base through welding, and the shock pad on the fixing base is used for buffering stress, so that a plurality of points are supported when the base is stressed, the stress is balanced, and the placement stability and the firmness of the base are improved. The fixing base 3 is provided with a fixing hole for fixing the base 1.
When the welding device is used, the base is positioned, the movable support is adjusted to a proper position, and a welding workpiece (a cross beam) is placed on the fixed support and the rotating mechanism on the movable support, so that the level of a welding surface is ensured. And simultaneously, the hydraulic cylinder is used for positioning and clamping the welding workpiece, so that two side surfaces of the workpiece are kept vertical, welding is performed after fixing, and the workpiece is sequentially turned over after welding, thereby realizing omnibearing welding.
The automatic welding turnover positioner in the embodiment is the same as a positioner on the market, and is provided with a control unit, a power supply unit and a gas source for supplying gas to a gas cylinder, compared with the traditional positioner for overturning the cross beam, the automatic welding turnover positioner can be suitable for overturning cross beam structural members with various lengths through structural improvement, and the length of the cross beam can exceed the span clamped at two ends of equipment; even if a longer workpiece is clamped, lengthening equipment is not needed, so that the occupied area of the equipment is greatly reduced; the clamping unit is fixed, so that the clamping firmness is improved, the workpiece can be automatically clamped and positioned after being overturned, and the workpiece can be freely overturned by matching with the robot welding system, so that the robot can weld any position of the workpiece, and the full-automatic welding production is realized.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (5)
1. An automatic welding turnover positioner comprises a base, wherein a linear slide rail is arranged on the base, a fixed support is arranged on one side of the linear slide rail, a movable support capable of moving along the linear slide rail is arranged on the other side of the linear slide rail, and the movable support is connected with a gear rack transmission mechanism arranged on the base; the method is characterized in that: the rotary mechanism comprises arc-shaped pieces with notches at the upper ends, the centers of the arc-shaped pieces are fixed on the corresponding fixed brackets or movable brackets through rotating shafts, gear strips are arranged at the outer edges of the inner sides of the arc-shaped pieces, driving motors are arranged on the corresponding fixed brackets or movable brackets, and driving rods of the driving motors are positioned on the outer sides of the gear strips and provided with driving gears meshed with the gear strips; the clamping mechanism comprises a clamping shell fixedly arranged on an arc-shaped piece, openings are formed in the upper end and the lower end of the clamping shell, a third clamping arm and a fourth clamping arm which extend out of the openings in the upper end are arranged in the clamping shell, and a group of air cylinder assemblies B for driving the third clamping arm and the fourth clamping arm to move in opposite directions or back to back are arranged on the arc-shaped piece; the clamping units capable of moving up and down and used for clamping workpieces are arranged on the fixed support and the movable support on one side of the rotating mechanism, each clamping unit comprises a fixedly placed hydraulic cylinder, a top rod of each hydraulic cylinder is upwards and fixedly connected with a clamping shell, openings are formed in the upper end and the lower end of each clamping shell, a first clamping arm and a second clamping arm extending out of the openings in the upper end are arranged in each clamping shell, and a group of cylinder assemblies A for driving the first clamping arms and the second clamping arms to move in opposite directions or in opposite directions are arranged on each clamping shell.
2. The automatic welding turnover positioner according to claim 1, wherein: guide sleeves which are communicated up and down are arranged on two sides of the clamping shell, and guide posts with fixed upper ends and lower ends are arranged in the guide sleeves.
3. The automatic welding turnover positioner according to claim 1, wherein: the left and right sides of base lower extreme all is provided with a row of fixing base, be equipped with the fixed orifices on the fixing base.
4. The automatic welding turnover positioner according to claim 1, wherein: the upper cover of the clamping mechanism is covered with a cover plate, the left side, the right side and the lower end of the cover plate extend downwards to form a connecting plate, and the three sections of connecting plates are sequentially connected and fixed on the rotating mechanism.
5. The automatic welding turnover positioner according to claim 1, wherein: and blocking parts with damping function are arranged at two ends of the linear slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811453139.6A CN109262191B (en) | 2018-11-30 | 2018-11-30 | Automatic welding turnover positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811453139.6A CN109262191B (en) | 2018-11-30 | 2018-11-30 | Automatic welding turnover positioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109262191A CN109262191A (en) | 2019-01-25 |
| CN109262191B true CN109262191B (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811453139.6A Active CN109262191B (en) | 2018-11-30 | 2018-11-30 | Automatic welding turnover positioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN109262191B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961854A (en) * | 2019-12-31 | 2020-04-07 | 浙江钱江机器人有限公司 | Steel beam welding positioner |
| CN112404869B (en) * | 2020-11-17 | 2022-04-22 | 苏州睿牛机器人技术有限公司 | Automatic rotating and clamping tool for welding L-shaped steel structure heavy-load bridge |
| CN114571116B (en) * | 2022-03-10 | 2024-03-12 | 浙江省建工集团有限责任公司 | Intelligent processing device for steel member |
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| CN108890213A (en) * | 2018-10-15 | 2018-11-27 | 何志彦 | A kind of H profile steel automatic soldering device |
| CN209175193U (en) * | 2018-11-30 | 2019-07-30 | 合肥哈工易科自动化科技有限公司 | Automatic welding overturns positioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7040629B2 (en) * | 2002-10-17 | 2006-05-09 | Bystronic Laser Ag | Clamping device for elongated workpieces |
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|---|---|---|---|---|
| US5904347A (en) * | 1997-07-03 | 1999-05-18 | Lin; Tsann-Hwang | Device for turning long members |
| CN103357986A (en) * | 2012-03-29 | 2013-10-23 | 株式会社神户制钢所 | Welding device |
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| CN109262191A (en) | 2019-01-25 |
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