CN111250911A - Welding positioning device for front section framework of front independent suspension passenger car - Google Patents
Welding positioning device for front section framework of front independent suspension passenger car Download PDFInfo
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- CN111250911A CN111250911A CN201811454202.8A CN201811454202A CN111250911A CN 111250911 A CN111250911 A CN 111250911A CN 201811454202 A CN201811454202 A CN 201811454202A CN 111250911 A CN111250911 A CN 111250911A
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- positioning
- swing arm
- front section
- passenger car
- section framework
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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
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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)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Abstract
The invention relates to a welding positioning device for a front section framework of a front independent suspension passenger car, which is used for welding a plurality of front section framework sheet frames, two suspension upper swing arm installation seats and an integral suspension lower swing arm installation seat which form the front section framework of the front independent suspension passenger car to form the front section framework of the front independent suspension passenger car. Compared with the prior art, the invention ensures that the mounting seats of the upper swing arm and the lower swing arm are fixed on the underframe assembly as well as the front section framework of the passenger car, can avoid the problem that the suspension can not be assembled due to the inaccurate position degree and positioning size of the front section framework of the passenger car and the mounting seats of the lower swing arm, has accurate and reliable positioning of all parts, is convenient and simple to operate, greatly improves the efficiency, and meets the requirement of batch production.
Description
Technical Field
The invention relates to the field of passenger car assembly, in particular to a welding and positioning device for a front section framework of a passenger car with a front independent suspension.
Background
At present, the domestic passenger car industry basically uses an integral suspension, and foreign passenger cars adopt a plurality of independent suspensions. The existing industry or company has an overseas small-batch independent suspension order, basically measures and draws lines by using a tape measure and an angle square in a size measuring and positioning mode on site, and performs assembling and welding on a front section framework of a front independent suspension passenger car. In a word, the assembly of the existing measuring line drawing assembly method wastes time and has low efficiency, and the state consistency of different batches of the same vehicle type cannot be ensured.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a welding positioning device for a front section framework of a front independent suspension passenger car.
The purpose of the invention can be realized by the following technical scheme:
a welding positioning device for a front section framework of a front independent suspension passenger car is used for welding a plurality of front section framework sheet frames, two suspension upper swing arm installation seats and an integral suspension lower swing arm installation seat which form the front section framework of the front independent suspension passenger car to form the front section framework of the front independent suspension passenger car, and comprises a chassis assembly, and a combined type frame positioning unit, an upper swing arm installation seat positioning unit and a lower swing arm installation seat positioning unit which are arranged on the chassis assembly;
the combined type framework positioning unit is used for positioning a plurality of front section framework sheet racks and comprises a plurality of fixed positioning blocks and hinged positioning blocks,
the upper swing arm mounting seat positioning unit is used for positioning two upper swing arm mounting seats of the suspension and comprises a plurality of articulated arms with positioning holes and positioning rod pieces matched with the positioning holes,
the lower swing arm mounting seat positioning unit is used for positioning the integral suspension lower swing arm mounting seat and comprises a concentric seat with a plurality of positioning holes and positioning rod pieces matched with the positioning holes.
Preferably, the underframe assembly is formed by welding square pipes and consists of a base and a support arranged on the base.
Preferably, the square tube is a square tube with a cross section of 100 × 100 × 6 mm.
Preferably, the articulated positioning block of the combined frame positioning unit adopts a positioning block articulated with the underframe assembly for avoiding interference when the welded passenger car front section framework is hoisted.
Preferably, the fixed positioning block of the combined frame positioning unit adopts a card type positioning block with a sheet structure.
Preferably, the plurality of articulated arms of the upper swing arm mounting seat positioning unit are divided into two groups, are symmetrically arranged on the underframe assembly in a left-right mode and are respectively used for positioning the upper swing arm mounting seat on the suspension frame on the corresponding side.
Preferably, the articulated arm adopts a positioning arm which is articulated with the underframe assembly, and a positioning hole on the articulated arm is matched with a reserved hole on the upper swing arm mounting seat.
Preferably, the positioning rod is a concentric rod or a bolt.
The positioning unit of the welding positioning device meets the positioning principle and mode of a clamp, namely a six-point positioning rule, and adopts a modern fast and efficient overturning positioning mode and a concentric positioning seat positioning mode, so that the movement of a workpiece along three axes of OX, OY and OZ and 6 degrees of freedom of rotation around the three axes are all limited, and the position of the workpiece in space is completely determined.
The accurate position in space of the mount pad of whole guarantee passenger train anterior segment skeleton and upper and lower swing arm to the easy operation, each module can go on simultaneously, by several people concurrent operation, has improved the efficiency of assembling greatly, and very big degree has been avoided because the error of the whole size of passenger train anterior segment skeleton and the spatial position of the mount pad of upper and lower swing arm, the concentricity is inaccurate, has leaded to upper and lower swing arm installation error, brings the influence that is difficult to the assembly to follow-up chassis installation independent suspension device.
Compared with the prior art, the invention has the following beneficial effects:
(1) the integral frame structure is adopted, so that the dimensional accuracy and form and position tolerance of the frame are ensured.
(2) The mounting seats of the upper swing arm and the lower swing arm are fixed on the chassis assembly together with the front section framework of the passenger car, so that the problem that the suspension cannot be assembled due to the fact that the position degree and the positioning size of the mounting seats of the front section framework and the lower swing arm of the passenger car are not accurate enough can be solved.
(3) The positioning of the mounting seats of the upper swing arm and the lower swing arm adopts a turnover positioning mechanism and an integral concentric rod structure, so that the position and the space size of the frame are ensured.
(4) Each part is accurate and reliable in positioning, convenient and simple to operate, efficiency is greatly improved, and the requirement of batch production is met.
Drawings
FIG. 1 is a schematic view of a welding positioning device according to the present invention (the front direction of the front frame of the passenger car faces to the left);
FIG. 2 is a schematic top view of the weld positioning apparatus of the present invention;
fig. 3 is a schematic sectional view (left side view in fig. 1) of the concentric seat of the lower swing arm mount positioning unit.
In the figure, 11 is a base, 12 is a bracket, 21 is a fixed positioning block, 22 is a hinged positioning block, 3 is a hinged arm, and 4 is a concentric seat.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
The utility model provides a welding position device for preceding independent suspension passenger train anterior segment skeleton, as shown in fig. 1 ~ 3, the device is used for a plurality of anterior segment skeleton racks that will constitute preceding independent suspension passenger train anterior segment skeleton, swing arm mount pad and an integral suspension lower swing arm mount pad welding formation preceding independent suspension passenger train anterior segment skeleton on two suspensions, the device includes chassis assembly and sets up the combined type frame positioning unit on chassis assembly, go up swing arm mount pad positioning unit and lower swing arm mount pad positioning unit, wherein:
the combined type framework positioning unit is used for positioning a plurality of front section framework sheet racks and comprises a plurality of fixed positioning blocks 21 and hinged positioning blocks 22;
the upper swing arm mounting seat positioning unit is used for positioning two upper swing arm mounting seats of the suspension, and comprises a plurality of articulated arms 3 with positioning holes and positioning rod pieces matched with the positioning holes;
the lower swing arm mounting seat positioning unit is used for positioning the integral suspension lower swing arm mounting seat and comprises a concentric seat 4 with a plurality of positioning holes and positioning rod pieces matched with the positioning holes.
The underframe assembly in this embodiment is formed by welding square pipes, and is composed of a base 11 and a bracket 12 arranged on the base 11. The square tube has a cross section of 100 × 100 × 6 mm.
In the embodiment, the articulated positioning block 22 of the combined frame positioning unit is a positioning block articulated with the underframe assembly, and the positioning block arranged at the position where interference occurs when the welding is completed and the hoisting is finished is in the form of the articulated positioning block, so that the interference generated when the welded front-section framework of the passenger car is hoisted can be avoided. The fixed positioning block 21 in this embodiment is a card-type positioning block having a sheet structure, and as can be seen from fig. 1 and 2, there are both a card-type positioning block perpendicular to the OX direction and a card-type positioning block perpendicular to the OY direction.
The articulated arms 3 of the upper swing arm mounting seat positioning unit in the embodiment are divided into two groups, are symmetrically arranged on the underframe assembly and are respectively used for positioning the upper swing arm mounting seats of the suspension frames on the corresponding sides. The upper swing arm mount positioning unit is disposed at a position corresponding to the upper swing arm mount, as shown in fig. 1. The articulated arm 3 adopts a positioning arm which is articulated with the chassis assembly, and a positioning hole on the articulated arm 3 is matched with a reserved hole on the mounting seat of the upper swing arm. When the positioning rod is used, the preformed hole in the upper swing arm mounting seat is aligned with the positioning hole in the hinged arm, and the positioning rod penetrates through the preformed hole to realize positioning. The positioning rod in this embodiment may be a concentric rod or a bolt (not shown).
During production, the integral lower swing arm mounting seat is fixed by a lower swing arm mounting seat positioning unit (a positioning rod piece penetrates through a preformed hole of the concentric seat and the integral lower swing arm mounting seat) to ensure the concentric and left-right direction size, then a cab platform, a left side plate and a right side plate are sequentially installed, the shape, position and size are ensured by a combined type frame positioning unit, and after spot welding, the upper swing arm mounting seat is positioned by the hinged type upper arm positioning unit and fixed by penetrating a concentric rod or a bolt. And after spot welding in sequence, disassembling each bolt and positioning the concentric rod, and lifting the workpiece.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (6)
1. A welding positioning device for a front section framework of a front independent suspension passenger car is characterized in that the device is used for welding a plurality of front section framework sheet frames, two suspension upper swing arm installation seats and an integral suspension lower swing arm installation seat which form the front section framework of the front independent suspension passenger car to form the front section framework of the front independent suspension passenger car, and the device comprises a chassis assembly, and a combined type frame positioning unit, an upper swing arm installation seat positioning unit and a lower swing arm installation seat positioning unit which are arranged on the chassis assembly;
the combined type framework positioning unit is used for positioning a plurality of front section framework sheet racks and comprises a plurality of fixed positioning blocks (21) and hinged positioning blocks (22),
the upper swing arm mounting seat positioning unit is used for positioning two upper swing arm mounting seats of the suspension and comprises a plurality of articulated arms (3) with positioning holes and positioning rod pieces matched with the positioning holes,
the lower swing arm mounting seat positioning unit is used for positioning the integral suspension lower swing arm mounting seat and comprises a concentric seat (4) with a plurality of positioning holes and positioning rod pieces matched with the positioning holes.
2. The welding and positioning device for the front section framework of the front independent suspension passenger car according to claim 1, characterized in that the underframe assembly is formed by welding square pipes and consists of a base (11) and a bracket (12) arranged on the base (11).
3. The welding and positioning device for the front section frame of the passenger car with the front independent suspension frame as claimed in claim 1, wherein the articulated positioning block (22) of the combined frame positioning unit adopts a positioning block which is articulated with the underframe assembly and is used for avoiding interference when the welded front section frame of the passenger car is hoisted.
4. The welding and positioning device for the front section framework of the front independent suspension passenger car according to claim 1, wherein the plurality of articulated arms (3) of the positioning unit of the upper swing arm mounting seat are divided into two groups, are symmetrically arranged on the underframe assembly from left to right and are respectively used for positioning the upper swing arm mounting seat of the suspension on the corresponding side.
5. The welding and positioning device for the front section framework of the front independent suspension passenger car according to claim 1 or 4, characterized in that the articulated arm (3) adopts a positioning arm hinged with the underframe assembly, and a positioning hole on the articulated arm (3) is matched with a reserved hole on an upper swing arm mounting seat.
6. The welding and positioning device for the front section framework of the front independent suspension passenger car according to claim 1, characterized in that the positioning rod is a concentric rod or a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811454202.8A CN111250911A (en) | 2018-11-30 | 2018-11-30 | Welding positioning device for front section framework of front independent suspension passenger car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811454202.8A CN111250911A (en) | 2018-11-30 | 2018-11-30 | Welding positioning device for front section framework of front independent suspension passenger car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111250911A true CN111250911A (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811454202.8A Pending CN111250911A (en) | 2018-11-30 | 2018-11-30 | Welding positioning device for front section framework of front independent suspension passenger car |
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| CN (1) | CN111250911A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146622A (en) * | 2021-03-22 | 2021-07-23 | 哈尔滨工业大学 | Visual identification method for laser welding of framework skin structure |
-
2018
- 2018-11-30 CN CN201811454202.8A patent/CN111250911A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146622A (en) * | 2021-03-22 | 2021-07-23 | 哈尔滨工业大学 | Visual identification method for laser welding of framework skin structure |
| CN113146622B (en) * | 2021-03-22 | 2022-07-05 | 哈尔滨工业大学 | Visual identification method for laser welding of framework skin structure |
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