CN113263291B - Clamp for welding rear axle of electric vehicle - Google Patents
Clamp for welding rear axle of electric vehicle Download PDFInfo
- Publication number
- CN113263291B CN113263291B CN202110821774.0A CN202110821774A CN113263291B CN 113263291 B CN113263291 B CN 113263291B CN 202110821774 A CN202110821774 A CN 202110821774A CN 113263291 B CN113263291 B CN 113263291B
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- rear axle
- pressing plate
- gear
- welding
- rod
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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
- 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
-
- 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
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a clamp for welding a rear axle of an electric vehicle, which belongs to the field of production equipment of the rear axle of the electric vehicle, and comprises a rotating platform, a rear axle fixing assembly, a reinforcing ring fixing assembly and an adjusting assembly, wherein the rear axle fixing assembly is arranged on the rotating platform; the reinforcing ring fixing assembly comprises an annular pressing plate, a plurality of fixing rods detachably arranged on the lower side of the pressing plate and a lifting mechanism for driving the pressing plate to lift; when the rotating table rotates, a fixed rod to be contacted with the welding gun can be separated from the pressing plate under the action of the adjusting assembly; the pressing plate is annular, so that the reinforcing ring can be fixed, a welding gun of a welding robot cannot be influenced to extend into the rear axle, and the welding work of the inner seam of the rear cover can be conveniently finished; the invention is also provided with the adjusting component, and under the action of the adjusting component, the two welding robots can simultaneously complete the welding work of the inner seam of the rear cover and the pressing plate, so that the working efficiency is greatly improved.
Description
Technical Field
The invention relates to the field of electric vehicle rear axle production equipment, in particular to a clamp for welding an electric vehicle rear axle.
Background
Along with the continuous attention paid to safety, energy conservation and environmental protection, the rear axle of the electric tricycle is used as a key part of the whole tricycle, the quality of a product has great influence on the safe use of the whole tricycle and the performance of the whole tricycle, the reinforcing ring is additionally arranged to improve the strength of the rear axle in the prior art, the reinforcing ring is welded to the rear axle firstly in the production process of the rear axle, then the outer seam of the rear axle rear cover is welded, and finally the inner seam of the rear cover is welded.
Disclosure of Invention
The invention provides a clamp for welding a rear axle of an electric vehicle, which can solve the problems pointed out in the background technology.
A clamp for welding a rear axle of an electric vehicle comprises a rotating platform, a rear axle fixing assembly, a reinforcing ring fixing assembly and an adjusting assembly, wherein the rear axle fixing assembly is arranged on the rotating platform; the reinforcing ring fixing assembly comprises an annular pressing plate, a plurality of fixing rods detachably arranged on the lower side of the pressing plate and a lifting mechanism for driving the pressing plate to lift; a cylindrical body matched with the inner side of the reinforcing ring is arranged on the lower side of the pressure plate, and a conical body is arranged on the bottom side of the cylindrical body; when the rotating platform rotates, a fixed rod to be in contact with the welding gun can be separated from the pressing plate under the action of the adjusting assembly.
Preferably, the lifting mechanism comprises a push plate and an air cylinder fixedly mounted on the lower side of the rotating table, and the push plate is connected with the output end of the air cylinder; the top end of the fixed rod is in threaded connection with the lower side of the pressing plate, and the middle part of the fixed rod is in threaded connection with the pushing plate; the rotating platform is provided with a through hole for abdicating the fixed rod; the adjusting component can drive the fixing rod to rotate along the clockwise direction or the anticlockwise direction.
Preferably, a base is arranged on the lower side of the rotating platform, the rotating platform is rotatably arranged on the base, and the adjusting assembly is arranged in the base; the adjusting assembly comprises a separating mechanism, a resetting mechanism and a plurality of connecting pieces which are respectively connected with the plurality of fixing rods in a one-to-one corresponding manner; the connecting piece comprises a square cylindrical connecting rod, a first gear sleeved on the connecting rod and a positioning rod rotatably arranged on a shaft sleeve of the first gear; a positioning groove is formed in the base, the end part, far away from the first gear, of the positioning rod is located in the positioning groove, and the positioning groove is provided with a convex part and a concave part; when the end part of the positioning rod is positioned in the convex part, the reset mechanism can drive the gear to rotate; when the end part of the positioning rod is positioned in the concave part, the separation mechanism can drive the gear to rotate.
Preferably, the reset mechanism comprises a second gear and a first motor for driving the second gear to rotate, and the second gear is rotatably arranged at the center of the base.
Preferably, the separating mechanism comprises a gear ring which is rotatably arranged in the base and a second motor which drives the gear ring to rotate.
Preferably, the end of the positioning rod is provided with a roller matched with the positioning groove.
Preferably, a connecting block used for being connected with the fixing rod is arranged on the lower side of the pressing plate, a sleeve is sleeved on the connecting block, a threaded hole matched with the fixing rod is formed in the bottom end of the sleeve, and a spring is further arranged between the top end of the sleeve and the lower side of the pressing plate.
Compared with the prior art, the invention has the beneficial effects that: the pressing plate is annular, so that the reinforcing ring can be fixed, a welding gun of a welding robot cannot be influenced to extend into the rear axle, and the welding work of the inner seam of the rear cover can be conveniently finished; the invention is also provided with the adjusting component, and the fixed rod to be contacted with the welding gun can be separated from the pressing plate under the action of the adjusting component, so that the fixed rod is prevented from colliding with the welding gun, the girth welding work of the reinforcing ring can be completed, namely two welding robots can simultaneously complete the welding work of the inner seam of the rear cover and the pressing plate, and the working efficiency is greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a schematic structural view of an adjusting assembly of the present invention.
Fig. 4 is a schematic structural diagram of the fixing rod and the connecting rod of the present invention.
Fig. 5 is a sectional view of the fixing lever and the connecting rod of the present invention.
Fig. 6 is an expanded view of the positioning groove of the present invention.
Description of reference numerals: 1. the device comprises a rotating platform, a rear axle fixing component 3, a pressing plate 4, a fixing rod 5, a cylinder 6, a pushing plate 7, a base 8, a welding gun 11, a connecting rod 12, a first gear 13, a positioning rod 14, a positioning groove 141, a convex part 142, a concave part 15, a second gear 16, a first motor 17, a gear ring 18, a roller 19, a connecting block 20, a sleeve 21 and a spring.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
As shown in fig. 1 to 6, an embodiment of the present invention provides a welding fixture for a rear axle of an electric vehicle, which includes a rotary table 1, a rear axle fixing assembly 2 disposed on the rotary table 1, a reinforcing ring fixing assembly, and an adjusting assembly.
The mode of welding the reinforcing ring first and then welding the rear axle rear cover is mostly adopted in the prior art, and the mode is adopted because when the reinforcing ring is fixed by the clamp in the prior art, the reinforcing ring is fixed from the inner side of the reinforcing ring through the groove in the center of the rear axle, so that the rear cover cannot be welded firstly, and the reinforcing ring welding work of the rear axle for completing the outer circular seam welding work of the rear cover firstly is realized by adopting the mode of fixing from the upper side of the reinforcing ring and the detachable fixed rod.
The reinforcing ring fixing component comprises an annular pressing plate 3, a plurality of fixing rods 4 detachably arranged on the lower side of the pressing plate 3 and a lifting mechanism for driving the pressing plate 3 to lift.
As shown in fig. 2, a cylinder body is arranged on the lower side of the pressure plate 3 and is matched with the inner side of the reinforcing ring, and a cone body is arranged on the bottom side of the cylinder body and is used for positioning the reinforcing ring.
When the rotary table 1 rotates, the fixing rod 4 to be contacted with the welding gun can be separated from the pressing plate 3 under the action of the adjusting component.
Elevating system includes push pedal 6 and fixed mounting in revolving stage 1 downside's cylinder 5, push pedal 6 with the output of cylinder 5 is connected.
As shown in fig. 3, the lower side of the pressing plate 3 is provided with four fixing bars 4 in total,
the top end of the fixing rod 4 is in threaded connection with the lower side of the pressing plate 3, and the middle of the fixing rod 4 is in threaded connection with the pushing plate 6.
The rotating platform 1 is provided with a through hole for the fixed rod 4 to yield.
The adjusting component can drive the fixing rod 4 to rotate along the clockwise direction or the anticlockwise direction.
The downside of revolving stage 1 is equipped with a base 7, revolving stage 1 rotationally sets up on the base 7, adjusting part sets up in the base 7.
The adjusting component comprises a separating mechanism, a resetting mechanism and a plurality of connecting pieces which are respectively connected with the fixing rods 4 in a one-to-one correspondence mode.
The connecting piece comprises a square cylindrical connecting rod 11, a first gear 12 sleeved on the connecting rod 11 and a positioning rod 13 rotatably arranged on a shaft sleeve of the first gear 12.
The first gear 12 can move up and down on the connecting rod 11.
A positioning groove 14 is formed in the base 7, an end of the positioning rod 13 away from the first gear 12 is located in the positioning groove 14, and as shown in fig. 6, the positioning groove 14 has a convex portion 141 and a concave portion 142.
The projection of the welding torch 8 in fig. 1 is located between the convex portion 141 and the concave portion 142.
When the end of the positioning rod 13 is located in the convex portion 141, the reset mechanism can drive the first gear 12 to rotate. When the end of the positioning rod 13 is located in the concave portion 142, the separation mechanism can drive the first gear 12 to rotate.
When the separating mechanism drives one of the fixing rods 4 to rotate, the fixing rod 4 moves downwards in the rotating process, so that the fixing rod is separated from the pressing plate 3 and has a distance through which the welding gun 8 can pass.
When the reset mechanism drives the fixed rod 4 to rotate, the fixed rod 4 moves upwards in the rotating process until being connected to the lower side of the pressing plate 3 again in a threaded manner.
The resetting mechanism comprises a second gear 15 and a first motor 16 for driving the second gear 15 to rotate, and the second gear 15 is rotatably arranged at the center of the base 7.
The separating mechanism comprises a gear ring 17 which is rotatably arranged in the base 7 and a second motor which drives the gear ring 17 to rotate.
A support frame (not shown) for supporting the ring gear 17 is provided in the base 7.
The end of the positioning rod 13 is provided with a roller 18 which is matched with the positioning slot 14.
The detent groove 14 is a dovetail groove that prevents the roller 18 from falling out of it.
In order to facilitate the connection of the fixing rod 4 with the pressing plate 3 under the action of the reset mechanism, a connecting block 19 used for being connected with the fixing rod 4 is arranged on the lower side of the pressing plate 3, a sleeve 20 is sleeved on the connecting block 19, a threaded hole matched with the fixing rod 4 is formed in the bottom end of the sleeve 20, a spring 21 is further arranged between the top end of the sleeve 20 and the lower side of the pressing plate 3, and two ends of the spring 21 are respectively connected with the sleeve 20 and the pressing plate 3.
The working principle is as follows: during the use, place the reinforcing ring on the rear axle, start cylinder 5 after that, cylinder 5 promotes push pedal 6 downstream to drive clamp plate 3 downstream, clamp plate 3 just fixes the reinforcing ring on the rear axle, and then the welder of a welding robot aims at the reinforcing ring outer joint, and the welder of another welding robot passes the hole at 3 centers of clamp plate and extends the back lid inseam.
The motors of the reset mechanism and the separating mechanism are started firstly, then the rotating platform 1 is started to start welding work, when the rotating platform 1 rotates, the fixed rod 4 rotates along with the rotating platform 1, when the fixed rod 4 is to be contacted with the welding gun 8, the roller 18 on the connecting piece at the bottom end of the fixed rod 4 just moves to the concave part 142, the first gear 12 is meshed with the gear ring 17, the gear ring 17 drives the first gear 12 to rotate, so that the fixing rod 4 moves downwards in the rotating process to be separated from the sleeve 20 until a space for the welding gun 8 to pass through is formed between the fixing rod and the sleeve, after the welding gun 8 passes through the space, the roller 18 just moves into the convex part 141, the first gear 12 is meshed with the second gear 15, the second gear 15 drives the first gear 12 to rotate, the fixing rods 4 are enabled to ascend in the rotating process until the top parts of the fixing rods 4 are in threaded connection with the sleeve 20, and when girth welding is completed, the four fixing rods 4 are separated and reset successively.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (7)
1. The clamp for welding the rear axle of the electric vehicle comprises a rotating table and a rear axle fixing assembly arranged on the rotating table, and is characterized by further comprising a reinforcing ring fixing assembly and an adjusting assembly;
the reinforcing ring fixing assembly comprises an annular pressing plate, a plurality of fixing rods detachably arranged on the lower side of the pressing plate and a lifting mechanism for driving the pressing plate to lift;
a cylindrical body matched with the inner side of the reinforcing ring is arranged on the lower side of the pressure plate, and a conical body is arranged on the bottom side of the cylindrical body;
when the rotating platform rotates, a fixed rod to be in contact with the welding gun can be separated from the pressing plate under the action of the adjusting assembly.
2. The welding jig for the rear axle of the electric vehicle as claimed in claim 1, wherein the lifting mechanism comprises a push plate and an air cylinder fixedly installed at a lower side of the rotating table, the push plate is connected with an output end of the air cylinder;
the top end of the fixed rod is in threaded connection with the lower side of the pressing plate, and the middle part of the fixed rod is in threaded connection with the pushing plate;
the rotating platform is provided with a through hole for abdicating the fixed rod;
the adjusting component can drive the fixing rod to rotate along the clockwise direction or the anticlockwise direction.
3. The welding jig for the rear axle of the electric vehicle as claimed in claim 2, wherein a base is provided at a lower side of the rotary table, the rotary table is rotatably provided on the base, and the adjusting assembly is provided in the base;
the adjusting assembly comprises a separating mechanism, a resetting mechanism and a plurality of connecting pieces which are respectively connected with the plurality of fixing rods in a one-to-one corresponding manner;
the connecting piece comprises a square cylindrical connecting rod, a first gear sleeved on the connecting rod and a positioning rod rotatably arranged on a shaft sleeve of the first gear;
a positioning groove is formed in the base, the end part, far away from the first gear, of the positioning rod is located in the positioning groove, and the positioning groove is provided with a convex part and a concave part;
when the end part of the positioning rod is positioned in the convex part, the reset mechanism can drive the gear to rotate;
when the end part of the positioning rod is positioned in the concave part, the separation mechanism can drive the gear to rotate.
4. The welding fixture for the rear axle of the electric vehicle as recited in claim 3, wherein the reset mechanism comprises a second gear and a first motor for driving the second gear to rotate, and the second gear is rotatably disposed at the center of the base.
5. The welding jig for the rear axle of the electric vehicle as recited in claim 3, wherein the separating mechanism comprises a second gear ring rotatably disposed in the base and a second motor for driving the second gear ring to rotate.
6. The welding jig for the rear axle of the electric vehicle as set forth in claim 3, wherein a roller engaged with the positioning groove is provided at an end of the positioning rod.
7. The clamp for welding the rear axle of the electric vehicle as claimed in claim 2, wherein a connecting block for connecting with the fixing rod is arranged at the lower side of the pressing plate, a sleeve is sleeved on the connecting block, a threaded hole matched with the fixing rod is formed at the bottom end of the sleeve, and a spring is further arranged between the top end of the sleeve and the lower side of the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110821774.0A CN113263291B (en) | 2021-07-21 | 2021-07-21 | Clamp for welding rear axle of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110821774.0A CN113263291B (en) | 2021-07-21 | 2021-07-21 | Clamp for welding rear axle of electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113263291A CN113263291A (en) | 2021-08-17 |
| CN113263291B true CN113263291B (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110821774.0A Active CN113263291B (en) | 2021-07-21 | 2021-07-21 | Clamp for welding rear axle of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113263291B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1950042C2 (en) * | 1968-10-23 | 1983-03-31 | Rockwell International Corp., 15219 Pittsburgh, Pa. | Friction welding machine |
| CN101774102A (en) * | 2009-01-08 | 2010-07-14 | 比亚迪股份有限公司 | Rotary welding device |
| CN203449851U (en) * | 2013-03-07 | 2014-02-26 | 重庆市双桥区中帝汽车配件制造有限公司 | Plate welding type driving axle housing assembly |
| CN106216868A (en) * | 2016-09-26 | 2016-12-14 | 唐山开元自动焊接装备有限公司 | The welding method of a kind of heavy axle stiffening ring and special fixture |
| CN210937806U (en) * | 2019-12-02 | 2020-07-07 | 山东金兴自动焊接设备有限公司 | Straight circular seam welding device for four-shaft axle |
-
2021
- 2021-07-21 CN CN202110821774.0A patent/CN113263291B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1950042C2 (en) * | 1968-10-23 | 1983-03-31 | Rockwell International Corp., 15219 Pittsburgh, Pa. | Friction welding machine |
| CN101774102A (en) * | 2009-01-08 | 2010-07-14 | 比亚迪股份有限公司 | Rotary welding device |
| CN203449851U (en) * | 2013-03-07 | 2014-02-26 | 重庆市双桥区中帝汽车配件制造有限公司 | Plate welding type driving axle housing assembly |
| CN106216868A (en) * | 2016-09-26 | 2016-12-14 | 唐山开元自动焊接装备有限公司 | The welding method of a kind of heavy axle stiffening ring and special fixture |
| CN210937806U (en) * | 2019-12-02 | 2020-07-07 | 山东金兴自动焊接设备有限公司 | Straight circular seam welding device for four-shaft axle |
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| Publication number | Publication date |
|---|---|
| CN113263291A (en) | 2021-08-17 |
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