CN107398670B - Welding fixture for engine left lower torsion-resistant bracket - Google Patents
Welding fixture for engine left lower torsion-resistant bracket Download PDFInfo
- Publication number
- CN107398670B CN107398670B CN201710786017.8A CN201710786017A CN107398670B CN 107398670 B CN107398670 B CN 107398670B CN 201710786017 A CN201710786017 A CN 201710786017A CN 107398670 B CN107398670 B CN 107398670B
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- pressing
- welding fixture
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- torsion
- bracket
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- 238000003466 welding Methods 0.000 title claims abstract description 82
- 238000003825 pressing Methods 0.000 claims description 62
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000002265 prevention Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a welding fixture for a left lower anti-torsion bracket of an engine, which is characterized in that a bracket fixing base is used for positioning a left lower anti-torsion bracket body, nuts to be welded are propped against left and right assembly holes through a first welding fixture part, the upper part of the left lower anti-torsion bracket body is buckled and pressed, the side plate is fixed at the position to be welded through a second welding fixture part and a third welding fixture part, and finally the whole welding fixture positioning of the left lower anti-torsion bracket is realized. The welding fixture for the engine left lower torsion-resistant bracket is simple in structure, convenient to operate, capable of being quickly assembled and positioned in a welding work manner, and therefore capable of improving production progress and suitable for wide application.
Description
Technical Field
The invention relates to a clamp, in particular to a welding fixture for a lower left torsion-resistant bracket of an engine.
Background
The engine left lower torsion bracket comprises a left lower torsion bracket body and a side plate welded with the left lower torsion bracket body; the left lower torsion-resistant bracket body comprises an upper assembly surface, a lower assembly surface and a transition surface between the upper assembly surface and the lower assembly surface, wherein a first assembly hole, a second assembly hole and a third assembly hole are sequentially formed in the lower assembly surface, a left assembly hole and a right assembly hole are formed in the upper assembly surface, and the left assembly hole and the right assembly hole in the upper assembly surface are coaxially and correspondingly arranged with the first assembly hole and the second assembly hole in the lower assembly surface respectively; the side plates are welded with the transition surface and are arranged between the upper assembly surface and the lower assembly surface.
When the existing manufacturer welds the parts, only simple tool fixtures are used for assembling the parts to finish welding. However, the simple tool clamp has the following disadvantages:
1. the number is more, the volume is smaller, no obvious identification information exists, so the clamp is not easy to store, and is easy to lose or confuse with other clamps.
2. All positioning requirements and starting size inspection cannot be met, and the welding quality of the parts cannot be guaranteed to be qualified.
3. The clamp is assembled manually, so that the difficulty is high, and no error prevention and leakage prevention measures are provided.
4. Simple tool clamp, assembly time is longer, influences the production progress, if mass production, can not satisfy the production progress.
Therefore, a proper fixture must be designed to solve the inconvenience caused by the simple tool fixture.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the welding fixture which has the advantages of simple structure, convenience in operation and capability of rapidly assembling and positioning welding work, thereby improving the production progress.
In order to achieve the technical aim, the technical scheme of the invention provides a welding fixture for a lower left torsion bracket of an engine, which comprises a lower left torsion bracket body and a side plate welded with the lower left torsion bracket body; the welding fixture comprises a welding fixture body, a welding fixture head and a welding fixture head,
the bracket fixing base is fixedly arranged on the bracket fixing base through a positioning pin in an assembly hole on the lower assembly surface of the left lower torsion-resistant bracket body;
the first welding tool part is provided with a pressure head coaxially and correspondingly arranged with the assembly hole on the assembly surface of the left lower torsion bracket body and is used for coaxially abutting the nut on the assembly hole;
the second welding tool part is provided with a pressure head for abutting against the side plate, and when the pressure head of the second welding tool part abuts against the side plate, the side plate is positioned at a position to be welded with the left lower torsion-resistant bracket body;
the third welding tool part is provided with a pressing block which is used for being abutted against the other surface of the side plate, and the pressing block of the third welding tool part is arranged opposite to the pressing head of the second welding tool part.
Preferably, the first welding tool part comprises a pressing self-locking structure, a first pressure head and a second pressure head, wherein the pressing self-locking structure comprises a base, and a first hinge point and a second hinge point are arranged on the base; one end of the clamp deflector rod is movably hinged on the base through a first hinge point; one end of the cantilever rod is movably hinged on the base through a second hinge point and is in power connection with the deflector rod through a connecting rod mechanism; the free end of cantilever rod is equipped with first pressure head and second pressure head, first pressure head and second pressure head set up with the coaxial correspondence of left and right mounting hole on the upper mounting surface of left lower antitorque support body respectively for with nut coaxial butt on left and right mounting hole respectively.
Preferably, the second welding tool part also comprises a pressing self-locking structure and a third pressing head, and the third pressing head is arranged at the free end of the cantilever rod.
Preferably, the third welding tool part comprises a cylinder and a pressing block fixedly arranged at the piston end of the cylinder, and the pressing block is provided with an inclined plane parallel to the angle to be welded of the side plates.
Preferably, a positioning column is arranged on the inclined plane of the pressing block, and the positioning column is correspondingly arranged with the positioning hole on the side plate.
Preferably, the upper surface of the pressing block opposite to the assembly surface of the left lower torsion bracket body is provided with an adjusting block, and a threaded blind hole corresponding to a screw hole formed in the adjusting block is formed in the adjusting block, and the adjusting block is mounted on the upper surface of the pressing block through a bolt.
The invention relates to a welding fixture for a left lower anti-torsion bracket of an engine, which is characterized in that a bracket fixing base is used for positioning a left lower anti-torsion bracket body, nuts to be welded are propped against left and right assembly holes through a first welding fixture part, the upper part of the left lower anti-torsion bracket body is buckled and pressed, the side plate is fixed at the position to be welded through a second welding fixture part and a third welding fixture part, and finally the whole welding fixture positioning of the left lower anti-torsion bracket is realized. The welding fixture for the engine left lower torsion-resistant bracket is simple in structure, convenient to operate, capable of being quickly assembled and positioned in a welding work manner, and therefore capable of improving production progress and suitable for wide application.
Drawings
Fig. 1 is a schematic perspective view of a welding fixture for a lower left torsion bracket of an engine, which clamps the lower left torsion bracket of the engine;
FIG. 2 is a schematic perspective view of a lower left torsion bracket of the engine according to the present invention;
FIG. 3 is a schematic perspective view of the engine lower left torsion bracket of the present invention secured to a bracket mounting base;
FIG. 4 is a schematic perspective view of a first welding tooling member according to the present disclosure;
fig. 5 is a schematic perspective view of a third welding tool component according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides a welding fixture for a left lower torsion-resistant bracket of an engine, which comprises a bracket fixing base 10, a first welding fixture part 20, a second welding fixture part 30 and a third welding fixture part 40 which are fixed on a workbench, as shown in fig. 1 to 5. As shown in fig. 2 and 3, the bracket fixing base 10 is provided with a first positioning pin 11, a second positioning pin 12, and a third positioning pin 13, which are disposed corresponding to the first assembly hole 511, the second assembly hole 512, and the third assembly hole 513 on the lower assembly surface 51 of the lower left torsion bracket body 50, and the assembly holes on the lower assembly surface 51 of the lower left torsion bracket body 50 are fixedly disposed on the bracket fixing base 10 through the positioning pins.
The first welding tool part 20 is provided with a pressing head coaxially and correspondingly arranged with the assembly hole on the assembly surface 52 of the left lower torsion bracket body 50, and is used for coaxially abutting the nut 80 on the assembly hole; specifically, as shown in fig. 4, the first welding tool component 20 includes a pressing self-locking structure 70, a first pressing head 2121, and a second pressing head 22, where the pressing self-locking structure 70 includes a base 71, and a first hinge point 711 and a second hinge point 712 are disposed on the base 71; a clamp deflector 72 with one end movably hinged to the base 71 through a first hinge point 711; a cantilever 73 with one end movably hinged on the base 71 through a second hinge point 712 and connected with the driving lever through a link mechanism; and a link mechanism is arranged between the clamp driving lever 72 and the cantilever lever 73, the clamp driving lever 72 drives the cantilever lever 73 to turn over through the link mechanism, and when the clamp driving lever 72 is arranged vertically to the cantilever lever 73, the link mechanism is also arranged vertically to the cantilever lever 73. Specifically, the link mechanism includes a third hinge point 713 disposed on the clamp driving lever 72, a fourth hinge point 714 (not shown) disposed on the cantilever lever 73, and a connecting rod 74 with two ends movably hinged between the clamp driving lever 72 and the cantilever lever 73 through the third hinge point 713 and the fourth hinge point 714, where the clamp driving lever 72 drives the cantilever lever 73 to turn over through the connecting rod 74, and when the clamp driving lever 72 is disposed perpendicular to the cantilever lever 73, the first hinge point 711, the third hinge point 713 and the fourth hinge point 714 are all disposed on the same vertical line, that is, the clamp driving lever 72, the connecting rod 74 and the cantilever lever 73 form mechanical self-locking, and in this angle, the clamp driving lever 72, the connecting rod 74 and the cantilever lever 73 are all fixedly locked with each other.
The free end of the cantilever 73 is provided with a first pressing head 21 and a second pressing head 22, and the first pressing head 2121 and the second pressing head 22 are coaxially and correspondingly arranged with left and right assembly holes 521, 522 on the assembly surface 52 of the left lower torsion bracket body 50 respectively, so as to coaxially abut the nut 80 on the left and right assembly holes 521, 522 respectively. When the first ram 2121 and the second ram 22 of the first welding tool component 20 coaxially abut the nuts 80 on the left and right assembly holes 521 and 522, respectively, the clamp driving lever 72 is disposed perpendicular to the cantilever rod 73, and the link mechanism is also disposed perpendicular to the cantilever rod 73, that is, the clamp driving lever 72, the link 74 and the cantilever rod 73 form mechanical self-locking.
The second welding tool part 30 has a pressing head for abutting against the side plate 60, and when the pressing head of the second welding tool part 30 abuts against the side plate 60, the side plate 60 is located at a position to be welded with the lower left torsion bracket body 50; specifically, the second welding tool part 30 also includes a pressing self-locking structure 70 and a third pressing head 31, where the third pressing head 31 is disposed at a free end of the cantilever 73, and when the third pressing head 31 of the second welding tool part 30 abuts against the side plate 60, the pressing self-locking structure 70 forms a mechanical self-lock.
The third welding fixture 40 has a pressing block 42 for abutting against the other surface of the side plate 60, and the pressing block 42 of the third welding fixture 40 is disposed opposite to the pressing head of the second welding fixture 30. Specifically, as shown in fig. 5, the third welding tool part 40 includes a cylinder 41, and a pressing block 42 fixedly disposed at a piston end of the cylinder 41, where the pressing block 42 has an inclined plane 421 parallel to an angle to be welded of the side plate 60; and a positioning column 422 is disposed on the inclined plane 421 of the pressing block 42, and the positioning column 422 is disposed corresponding to the positioning hole 61 on the side plate 60.
As shown in fig. 3, the first positioning pin 11 and the second positioning pin 12 on the bracket fixing base 10 respectively pass through the first assembling hole 511 and the second assembling hole 512 on the lower assembling surface 51 of the lower left torsion bracket body 50 and then continue to extend upwards to respectively axially pass through the left assembling hole 521 and the right assembling hole 522 on the upper assembling surface 52, however, the height of the first positioning pin 11 and the second positioning pin 12 protruding out of the left assembling hole 521 and the right assembling hole 522 is smaller than the axial thickness of the nut 80 to be welded on the left assembling hole 521 and the right assembling hole 522, so that the nut 80 to be welded can be sleeved on the free ends of the first positioning pin 11 and the second positioning pin 12, but the pressing of the first pressing head 2121 and the second pressing head 22 of the first welding tool component 20 to the nut 80 is not affected.
Meanwhile, in order to ensure that the distance between the upper assembling surface 52 and the lower assembling surface 51 of the left lower torsion bracket body 50 is not changed due to the welding heat during the welding process, the upper assembling surface 52 is generally deformed downwards under the action of gravity, so that as shown in fig. 5, an adjusting block 43 is arranged on the upper surface of the pressing block 42 opposite to the upper assembling surface 52 of the left lower torsion bracket body 50, and a threaded blind hole corresponding to a screw hole arranged on the adjusting block 43 is arranged on the upper surface of the pressing block 42, and the adjusting block 43 is arranged on the upper surface of the pressing block 42 through a bolt, so that the height size of the pressing block 42 is changed by increasing or decreasing the adjusting block 43, thereby achieving the purpose of controlling the gear opening size between the upper assembling surface 52 and the lower assembling surface 51.
When the body of the lower left torsion bracket and the side plate 60 are required to be welded together, the lower left torsion bracket body 50 is sleeved and fixed on the bracket fixing base 10, then the nuts 80 are sleeved and fixed on the first positioning pin 11 and the second positioning pin 12, then the first pressure head 2121 and the second pressure head 22 are respectively enabled to coaxially abut against the nuts 80 on the left assembling hole 521 and the right assembling hole 522 through the abutting and pressing self-locking structure 70 of the first welding tool part 20, the third pressure head 31 is enabled to abut against the side plate 60 through the abutting and pressing self-locking structure 70 of the second welding tool part 30, mechanical self-locking is formed, meanwhile, the cylinder 41 is driven, the pressing block 42 is enabled to abut against the other side of the side plate 60, front-rear mechanical balance is formed with the third pressure head 31, the side plate 60 is guaranteed to be fixed at the position to be welded, meanwhile, the positioning pin of the pressing block 42 penetrates through the positioning hole on the side plate 60, movement of other angles of the side plate 60 is further guaranteed, and the whole welding positioning of the lower left torsion bracket is realized.
The invention relates to a welding fixture for a left lower anti-torsion bracket of an engine, which is characterized in that a bracket fixing base 10 is used for positioning a left lower anti-torsion bracket body 50, nuts 80 to be welded are propped against left and right assembly holes 521 and 522 through a first welding fixture part 20, meanwhile, the buckling of the upper part of the left lower anti-torsion bracket body 50 is realized, finally, the side plate 60 is ensured to be fixed at the position to be welded through a second welding fixture part 30 and a third welding fixture part 40, and finally, the whole welding fixture positioning of the left lower anti-torsion bracket is realized. The welding fixture for the engine left lower torsion-resistant bracket is simple in structure, convenient to operate, capable of being quickly assembled and positioned in a welding work manner, and therefore capable of improving production progress and suitable for wide application.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any other corresponding changes and modifications made in accordance with the technical idea of the present invention shall be included in the scope of the claims of the present invention.
Claims (3)
1. The welding fixture for the engine left lower anti-torsion bracket is characterized by comprising a left lower anti-torsion bracket body and a side plate welded with the left lower anti-torsion bracket body; the welding fixture comprises a welding fixture body, a welding fixture head and a welding fixture head,
the bracket fixing base is fixedly arranged on the bracket fixing base through a positioning pin in an assembly hole on the lower assembly surface of the left lower torsion-resistant bracket body;
the first welding tool part is provided with a pressure head coaxially and correspondingly arranged with the assembly hole on the assembly surface of the left lower torsion bracket body, and is used for coaxially abutting the nut on the assembly hole and pressing the workpiece on the fixed base;
the second welding tool part is provided with a pressure head for abutting against the side plate, and when the pressure head of the second welding tool part abuts against the side plate, the side plate is positioned at a position to be welded with the left lower torsion-resistant bracket body;
the third welding tool part is provided with a pressing block used for abutting against the other surface of the side plate, and the pressing block of the third welding tool part is arranged opposite to the pressing head of the second welding tool part;
the third welding tool part comprises a cylinder and a pressing block fixedly arranged at the piston end of the cylinder, wherein the pressing block is provided with an inclined plane parallel to the angle to be welded of the side plate and a stop part protruding out of the inclined plane;
a positioning column is arranged on the inclined surface of the pressing block, and the positioning column is correspondingly arranged with the positioning hole on the side plate;
the upper surface of the pressing block, which is opposite to the assembly surface of the left lower torsion-resistant bracket body, is provided with an adjusting block and a threaded blind hole which is arranged corresponding to a screw hole arranged on the adjusting block, and the adjusting block is arranged on the upper surface of the pressing block through a bolt;
the first locating pin and the second locating pin on the bracket fixing base respectively pass through the first assembly hole and the second assembly hole on the lower assembly surface of the left lower torsion bracket body and then extend upwards continuously to respectively axially pass through the left assembly hole and the right assembly hole on the upper assembly surface, however, the heights of the protruding left assembly hole and the protruding right assembly hole of the first locating pin and the protruding right assembly hole of the second locating pin are smaller than the axial thickness of nuts to be welded on the left assembly hole and the right assembly hole.
2. The welding fixture of the engine left lower torsion bracket according to claim 1, wherein the first welding fixture part comprises a pressing self-locking structure, a first pressing head and a second pressing head, the pressing self-locking structure comprises a base, and a first hinge point and a second hinge point are arranged on the base; one end of the clamp deflector rod is movably hinged on the base through a first hinge point; one end of the cantilever rod is movably hinged on the base through a second hinge point and is in power connection with the deflector rod through a connecting rod mechanism; the free end of cantilever pole is equipped with first pressure head and second pressure head, first pressure head and second pressure head respectively with the left and right mounting hole coaxial corresponding setting on the upper mounting surface of left lower antitorque support body for with nut coaxial butt on left and right mounting hole respectively, compress tightly the work piece on fixed base simultaneously.
3. The welding fixture of the engine lower left torsional bracket of claim 2, wherein the second welding fixture component also comprises a pressing self-locking structure and a third pressing head, and the third pressing head is arranged at the free end of the cantilever rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710786017.8A CN107398670B (en) | 2017-09-04 | 2017-09-04 | Welding fixture for engine left lower torsion-resistant bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710786017.8A CN107398670B (en) | 2017-09-04 | 2017-09-04 | Welding fixture for engine left lower torsion-resistant bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107398670A CN107398670A (en) | 2017-11-28 |
| CN107398670B true CN107398670B (en) | 2024-02-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710786017.8A Active CN107398670B (en) | 2017-09-04 | 2017-09-04 | Welding fixture for engine left lower torsion-resistant bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107398670B (en) |
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| TW200915897A (en) * | 2007-09-28 | 2009-04-01 | Hon Hai Prec Ind Co Ltd | Speaker fixing device and electrical device housing |
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| CN207127450U (en) * | 2017-09-04 | 2018-03-23 | 东风（武汉）汽车零部件有限公司 | The welding tool setup of the antitorque support in engine lower-left |
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| BR112015014995B1 (en) * | 2012-12-28 | 2022-05-31 | Honda Motor Co., Ltd | Method for mounting a vehicle body |
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| US4618089A (en) * | 1983-08-30 | 1986-10-21 | Kawasaki Jukogyo Kabushiki Kaisha | Apparatus and method for assembling a structure comprising frames and shell plates |
| TW200915897A (en) * | 2007-09-28 | 2009-04-01 | Hon Hai Prec Ind Co Ltd | Speaker fixing device and electrical device housing |
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| KR20130017499A (en) * | 2011-08-11 | 2013-02-20 | 종 완 김 | Milling machine vise that is capable of controlling angle |
| CN202763298U (en) * | 2012-09-20 | 2013-03-06 | 重庆延锋江森汽车部件系统有限公司 | Welding tooling for left support subassembly and right support subassembly of automobile instrument panel framework |
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| CN203580601U (en) * | 2013-11-19 | 2014-05-07 | 郑州日产汽车有限公司 | Rear suspended anti-torque support of automobile transversely-arranged power assembly |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107398670A (en) | 2017-11-28 |
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Country or region after: China Address after: 430056 No.99, Minli 4th Road, Wuhan Economic and Technological Development Zone, Hubei Province Applicant after: Dongshi (Wuhan) Automotive Parts Co.,Ltd. Address before: 430056 No.99, Minli 4th Road, Wuhan Economic and Technological Development Zone, Hubei Province Applicant before: DONGFENG (WUHAN) MOTOR PARTS AND COMPONENTS CO.,LTD. Country or region before: China |
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