CN111015041A - Single-station automatic welding system for symmetrical workpieces - Google Patents

Single-station automatic welding system for symmetrical workpieces Download PDF

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Publication number
CN111015041A
CN111015041A CN201911228106.6A CN201911228106A CN111015041A CN 111015041 A CN111015041 A CN 111015041A CN 201911228106 A CN201911228106 A CN 201911228106A CN 111015041 A CN111015041 A CN 111015041A
Authority
CN
China
Prior art keywords
welding
clamp
conveying track
carrying trolley
track
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
Application number
CN201911228106.6A
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Chinese (zh)
Other versions
CN111015041B (en
Inventor
王建华
施素玲
范兆博
李妍江
朱鹏德
孟令山
白杰
张高鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Nissan Automobile Co Ltd
Original Assignee
Zhengzhou Nissan Automobile Co Ltd
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Filing date
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Application filed by Zhengzhou Nissan Automobile Co Ltd filed Critical Zhengzhou Nissan Automobile Co Ltd
Priority to CN201911228106.6A priority Critical patent/CN111015041B/en
Publication of CN111015041A publication Critical patent/CN111015041A/en
Application granted granted Critical
Publication of CN111015041B publication Critical patent/CN111015041B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02Carriages for supporting the welding or cutting element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02Carriages for supporting the welding or cutting element
    • B23K37/0211Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work
    • B23K37/0435Clamps
    • B23K37/0443Jigs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/047Auxiliary 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

Abstract

The invention discloses a single-station automatic welding system for symmetrical workpieces, which comprises a clamp for fixing workpieces, a welding mechanism for welding the workpieces, a carrying trolley, a pair of guide posts and a pair of guide rails, wherein the clamp is arranged above the carrying trolley; the conveying mechanism comprises a driving mechanism connected with the carrying trolley and a conveying track arranged on one side of the welding mechanism; the conveying track is provided with a steering mechanism positioned on the front side of the welding mechanism, and the steering mechanism interacts with the guide rod to enable the carrying trolley and the clamp on the carrying trolley to steer for 180 degrees. The invention uses the same clamp to clamp symmetrical left/right pieces, and the clamp is rotated on a semicircular steering mechanism arranged on a conveying track, so that the relative positions of the left piece welding line and the right piece welding line and a welding gun of a welding machine are unified, and the aim of welding symmetrical pieces by using a set of clamp and a set of control program is fulfilled. The invention has the advantages of small occupied area, compact structure, less equipment, less investment and convenient use, and improves the welding efficiency of symmetrical parts.

Description

Single-station automatic welding system for symmetrical workpieces
Technical Field
The invention relates to the technical field of welding of symmetrical parts of automobiles, in particular to a single-station automatic welding system for symmetrical parts.
Background
The automobile body is of a bilateral symmetry structure, and the frame and parts connected with the frame are of a bilateral symmetry structure. When welding, although the shapes of each pair of left and right pieces are similar and the positions of the welding seams are corresponding to each other, the left and right pieces cannot share a clamp, and two different clamps and two different control programs matched with the clamps are needed to weld the left/right pieces respectively. When the production mode is adopted, the welding system is complex, the number of welding mechanisms is large, the occupied area is large, the investment is large, and the later maintenance is inconvenient.
Disclosure of Invention
The invention provides a single-station automatic welding system for symmetrical parts, and aims to solve the problem that the existing left and right symmetrical parts cannot share a clamp, so that the welding system is complex.
In order to achieve the purpose, the invention can adopt the following technical scheme:
the invention discloses a single-station automatic welding system for symmetrical workpieces, which comprises a clamp for fixing workpieces, a welding mechanism for welding the workpieces, and the system further comprises
The clamp is arranged above the carrying trolley, and a pair of guide posts is arranged below the carrying trolley;
the conveying mechanism comprises a driving mechanism connected with the carrying trolley and a conveying track arranged on one side of the welding mechanism; the conveying track is provided with a welding mechanism positioned at the front side
And the steering mechanism interacts with the guide rod to enable the carrying trolley and the clamp on the carrying trolley to steer for 180 degrees.
The guide posts are arranged at intervals along the advancing direction of the carrying trolley.
The steering mechanism comprises a semicircular steering track arranged on the conveying track, the circle center of the semicircular steering track is positioned on the conveying track, the radius of the semicircular steering track is equal to the distance between the guide columns, and a fixing fork for fixing any guide column at the circle center of the semicircular steering track is arranged on one side of the conveying track.
The conveying track is of an annular structure, the semicircular steering track is arranged on the inner side of the conveying track, and the welding mechanism is arranged on the outer side of the conveying track.
The conveying track is provided with an annular through hole arranged along the central line; the driving mechanism comprises an annular chain located below the annular through hole, the annular chain is meshed with a driving wheel and a driven wheel which are driven by a motor, a driving column is arranged on the annular chain, and the driving column interacts with the guide column penetrating through the annular through hole.
The welding mechanism comprises a welding gun, and a bottom support of the welding gun is connected with the two-dimensional driving mechanism.
The single-station automatic welding system for the symmetrical workpieces provided by the invention uses the same clamp to clamp the symmetrical left/right workpieces, and enables the clamp to rotate on the semicircular steering mechanism arranged on the conveying track, so that the relative positions of the left and right welding seams and the welding gun of the welding machine are unified, and the aim of welding the symmetrical workpieces by using a set of clamp and a set of control program is fulfilled. The invention has the advantages of small occupied area, compact structure, less equipment, less investment and convenient use, and greatly improves the welding efficiency of symmetrical parts.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a top view of fig. 1 (only the conveying track and the steering mechanism).
Fig. 4 is a schematic view of the structure of fig. 3 in which the left member is placed on the conveying rail.
Fig. 5 is a schematic structural view of the right member of fig. 3 placed on a conveying rail.
Fig. 6 is a schematic view of the right part of fig. 5 passing through the steering mechanism and then on the conveying track.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which are based on the technical solutions of the present invention and provide detailed embodiments, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-3, the single-station automatic welding system for symmetrical workpieces according to the present invention includes a fixture 1 for fixing a workpiece M and a welding mechanism 2 for welding the workpiece M, and further includes a carrier cart 3 for carrying the fixture 1, a conveying mechanism for conveying the carrier cart 3 and the fixture 1 thereon, the workpiece M to the welding mechanism 2, and a steering mechanism provided on the conveying mechanism for steering the workpiece M.
Specifically, the clamp 1 is installed above the carrying trolley 3, and the pair of guide posts 4 arranged at intervals along the advancing direction of the carrying trolley 3 are installed below the carrying trolley 3, and the guide posts 4 are used for connecting the conveying mechanism and the steering mechanism.
The conveying mechanism comprises a conveying track and a driving mechanism, wherein the conveying track is arranged on a table surface N of the rack and is of an annular structure, and the carrying trolley 3 can circularly run along the annular track; the center line of the annular conveying track is also provided with an annular through hole 5 which is used for extending the guide post 4 to the position below the machine frame table surface N. A driving mechanism is arranged below the table surface N of the rack, the driving mechanism comprises an annular chain 6.1 located below an annular through hole 5, two ends of the annular chain 6.1 are provided with a driving wheel 6.2 and three driven wheels 6.3 which are meshed with the annular chain and connected with the driving wheel, the driving wheel 6.2 and the driven wheels 6.3 are located at four corners of a rectangle, the driving wheel 6.2 is connected with a motor 6.4, and a driving column 6.5 which vertically extends upwards and can be in contact with a guide column 4 is arranged on the annular chain 6.1.
The steering mechanism comprises a semicircular steering track 7.1 communicated with the annular through hole 5 of the conveying track, the circle center of the semicircular steering track 7.1 is positioned on the annular through hole 5, the radius of the semicircular steering track is equal to the distance between the paired guide posts 4, a fixing fork 7.2 is further installed on one side of the annular through hole 5 of the conveying track, and the fixing fork 7.2 is used for fixing any one guide post 4 at the circle center of the semicircular steering track 7.1.
Normally, the welding mechanism 2 is arranged on the outer side of the annular conveying track, the semicircular steering track 7.1 is arranged on the inner area of the annular conveying track opposite to the welding mechanism 2, and the joint of the annular through hole 5 of the conveying track and the semicircular steering track 7.1 is used as a feeding and blanking station of the carrying trolley 3.
As shown in fig. 4, the left part is fixed on the fixture 1 of the carrying trolley 3, and the welding seam Q of the left part is located outside the annular conveying track, so that the left part does not need to be turned, only the driving device is started, the driving column 6.5 pushes the guide column 4 to drive the carrying trolley 3 to move forward along the annular conveying track, when the carrying trolley 3 moves to the welding mechanism 2, the left part is stopped from moving to be welded, and after the welding is completed, the left part continues to move forward until the left part reaches the blanking station to be blanked.
As shown in fig. 5, the right member is fixed to the jig 1 of the carrying cart 3, and since the weld Q' of the right member is located outside the endless conveying track, it is necessary to perform 180 ° steering via the steering mechanism. Specifically, the fixed fork 7.2 is pushed manually to be clamped on the right guide post 4, the right guide post 4 is fixed at the circle center of the semicircular steering track 7.1, the left guide post 4 is just corresponding to the semicircular steering track 7.1, the carrying trolley 3 is pushed manually to enable the trolley body to rotate 180 degrees around the circle center of the semicircular steering track 7.1 (see fig. 6), at the moment, the welding seam Q' of the right piece is also rotated to the outer side of the annular conveying track, and the welding mechanism 2 is convenient to weld the right piece by adopting the same control procedure as the left piece.
The welding mechanism 2 comprises a welding gun 2.1, and a bottom support of the welding gun 2.1 is connected with a two-dimensional driving mechanism 2.2. Specifically, the two-dimensional driving mechanism 2.2 is a mechanism capable of driving the bottom support to move along the direction parallel to the conveying track and the direction perpendicular to the conveying track, and when the welding gun 2.1 moves towards the inner side of the annular track perpendicular to the conveying track, the welding gun 2.1 and the workpiece M can keep a proper welding distance; when the welding torch 2.1 is moved parallel to the conveying track, it is used to weld the workpiece M.

Claims (6)

1. A single-station automatic welding system for symmetrical workpieces comprises a clamp for fixing workpieces and a welding mechanism for welding the workpieces, and is characterized in that: also comprises
The clamp is arranged above the carrying trolley, and a pair of guide posts is arranged below the carrying trolley;
the conveying mechanism comprises a driving mechanism connected with the carrying trolley and a conveying track arranged on one side of the welding mechanism; the conveying track is provided with a welding mechanism positioned at the front side
And the steering mechanism interacts with the guide rod to enable the carrying trolley and the clamp on the carrying trolley to steer for 180 degrees.
2. The single station automatic welding system for symmetrical parts according to claim 1, characterized in that: the guide posts are arranged at intervals along the advancing direction of the carrying trolley.
3. The single station automatic welding system for symmetrical parts according to claim 2, characterized in that: the steering mechanism comprises a semicircular steering track arranged on the conveying track, the circle center of the semicircular steering track is positioned on the conveying track, the radius of the semicircular steering track is equal to the distance between the guide columns, and a fixing fork for fixing any guide column at the circle center of the semicircular steering track is arranged on one side of the conveying track.
4. The single station automatic welding system for symmetrical parts according to claim 3, characterized in that: the conveying track is of an annular structure, the semicircular steering track is arranged on the inner side of the conveying track, and the welding mechanism is arranged on the outer side of the conveying track.
5. The single station automatic welding system for symmetrical parts according to claim 4, characterized in that: the conveying track is provided with an annular through hole arranged along the central line; the driving mechanism comprises an annular chain located below the annular through hole, the annular chain is meshed with a driving wheel and a driven wheel which are driven by a motor, a driving column is arranged on the annular chain, and the driving column interacts with the guide column penetrating through the annular through hole.
6. The single station automatic welding system for symmetrical parts according to claim 1, characterized in that: the welding mechanism comprises a welding gun, and a bottom support of the welding gun is connected with the two-dimensional driving mechanism.
CN201911228106.6A 2019-12-04 2019-12-04 Single-station automatic welding system for symmetrical workpieces Active CN111015041B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911228106.6A CN111015041B (en) 2019-12-04 2019-12-04 Single-station automatic welding system for symmetrical workpieces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911228106.6A CN111015041B (en) 2019-12-04 2019-12-04 Single-station automatic welding system for symmetrical workpieces

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CN111015041A true CN111015041A (en) 2020-04-17
CN111015041B CN111015041B (en) 2021-08-20

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01203114A (en) * 1988-02-09 1989-08-15 Kito Corp Circulation type carrying truck
CN1392858A (en) * 2000-09-14 2003-01-22 本田技研工业株式会社 Pallet transporting mechanism and assembly line using the mechanism
CN202174370U (en) * 2011-07-06 2012-03-28 青岛环球集团股份有限公司 Automatic welding equipment
CN204917035U (en) * 2015-09-15 2015-12-30 储骏 A revolve transferred and send device for automotive production line
CN207057883U (en) * 2017-08-07 2018-03-02 深圳泛宇自动化有限公司 A kind of automobile body-in-white main weldering line flexible production turntable
CN207511412U (en) * 2017-11-06 2018-06-19 黄石市华天自动化设备有限公司 A kind of aerial sliding platform
CN110015479A (en) * 2019-05-15 2019-07-16 阳江喜之郎果冻制造有限公司 Product built-in receptacle automatic pick-and-place apparatus
CN110255064A (en) * 2019-06-26 2019-09-20 佛山协航智能装备制造有限公司 A kind of circulating type assembly line
CN209532719U (en) * 2019-01-12 2019-10-25 广东九通汽车装备技术有限公司 A kind of fixture database sliding rail of the main spelling system of automobile flexible

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01203114A (en) * 1988-02-09 1989-08-15 Kito Corp Circulation type carrying truck
CN1392858A (en) * 2000-09-14 2003-01-22 本田技研工业株式会社 Pallet transporting mechanism and assembly line using the mechanism
CN202174370U (en) * 2011-07-06 2012-03-28 青岛环球集团股份有限公司 Automatic welding equipment
CN204917035U (en) * 2015-09-15 2015-12-30 储骏 A revolve transferred and send device for automotive production line
CN207057883U (en) * 2017-08-07 2018-03-02 深圳泛宇自动化有限公司 A kind of automobile body-in-white main weldering line flexible production turntable
CN207511412U (en) * 2017-11-06 2018-06-19 黄石市华天自动化设备有限公司 A kind of aerial sliding platform
CN209532719U (en) * 2019-01-12 2019-10-25 广东九通汽车装备技术有限公司 A kind of fixture database sliding rail of the main spelling system of automobile flexible
CN110015479A (en) * 2019-05-15 2019-07-16 阳江喜之郎果冻制造有限公司 Product built-in receptacle automatic pick-and-place apparatus
CN110255064A (en) * 2019-06-26 2019-09-20 佛山协航智能装备制造有限公司 A kind of circulating type assembly line

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