Integrated unitization welding platform for automobile auxiliary frame

Abstract

An automobile auxiliary frame integration unitization welding platform comprises a welding tool base. A clamping device I used for pressing and positioning a front cross beam, a clamping device III used for pressing and positioning a rear cross beam, a clamping device II used for pressing and positioning a left longitudinal beam and a clamping device IV used for pressing and positioning a right longitudinal beam are arranged on the welding tool base. The corresponding clamping and positioning unit is used for pressing and positioning all parts of the front frame connecting structure; each clamping and positioning unit comprises a positioning assembly, a clamping assembly and a switching assembly; the positioning assembly and the clamping assembly are integrated on the switching assembly; the clamping and positioning unit is detachably installed on the tool platform through a switching assembly. According to the integrated unitized welding platform for the automobile auxiliary frames, production line switching of different products can be completed only by replacing the corresponding clamping and positioning units for the automobile auxiliary frames of different types, the operation is fast and accurate, one welding platform is shared, the applicability of the welding platform is improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of welding tooling for auxiliary frames, and more specifically, to an integrated unitized welding platform for automobile auxiliary frames. Background Art

[0002] The subframe is the skeleton of the front and rear axles and is an important part of the automobile chassis. Figure 1 As shown, the subframe of the prior art is usually welded by a front crossbeam 101, a left longitudinal beam 102, a rear crossbeam 103, a right longitudinal beam 104 and various connecting structures, and needs to be clamped by welding tools during welding. However, conventional automobile subframe welding platforms can only weld subframes of the same type, and it is difficult to meet the welding processing of different types of subframes, so multiple welding platforms are required, which is costly. Therefore, we propose an automobile subframe integrated unitized welding platform to solve the above problems. Summary of the invention

[0003] The purpose of the utility model is to provide an integrated unitized welding platform for automobile subframes, which integrates and modularizes the clamping and positioning units of various parts of the automobile subframe connection structure. The integrated modularization facilitates overall replacement, does not require multiple calibration welds, has high precision, and improves work efficiency. In addition, for different types of automobile subframes, only the corresponding clamping and positioning units need to be replaced to complete the switching of different product production lines, which is fast and accurate, and a shared welding platform is achieved, thereby improving the applicability of the welding platform and reducing costs.

[0004] Its further technical solution is: an integrated unitized welding platform for automobile subframes, including a welding tool base, on which are respectively provided a clamping device I for clamping and positioning a front crossbeam, a clamping device III for clamping and positioning a rear crossbeam, a clamping device II for clamping and positioning a left longitudinal beam, and a clamping device IV for clamping and positioning a right longitudinal beam; the welding tool base is also respectively provided with corresponding clamping and positioning units for clamping and positioning various components of the front frame connection structure; each of the clamping and positioning units includes a positioning assembly, a clamping assembly and a switching assembly; the positioning assembly and the clamping assembly are integrated on the switching assembly; the clamping and positioning unit is detachably mounted on the tool platform through the switching assembly.

[0005] A further technical solution is that the structure of the positioning assembly is adapted to different shapes of parts.

[0006] A further technical solution is that the clamping assembly is mainly composed of a clamping cylinder and a pressure arm.

[0007] A further technical solution is that: the adapter assembly is provided with a standard positioning hole and a locking hole for connecting with the welding tool base.

[0008] Due to the adoption of the above technical solution, the integrated unitized welding platform of automobile subframe of the utility model has the following beneficial effects compared with the prior art: the integrated unitized welding platform of automobile subframe integrates and modularizes the clamping and positioning units of various parts of the automobile subframe connection structure, and the integrated modularization facilitates overall replacement, does not require multiple calibration of the weld, has high precision, and improves work efficiency. Moreover, for different types of automobile subframes, only the corresponding clamping and positioning units need to be replaced to complete the switching of different product production lines, which is fast and accurate, and a common welding platform is achieved, which improves the applicability of the welding platform and reduces costs.

[0009] The technical features of the integrated unitized welding platform for automobile subframes of the utility model will be further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of an automobile subframe according to an embodiment;

[0011] Figure 2 This is a schematic diagram of an integrated unitized welding platform for an automobile subframe in one embodiment. Figure 1 ;

[0012] Figure 3 This is a schematic diagram of an integrated unitized welding platform for an automobile subframe in one embodiment. Figure 2 ;

[0013] Figure 4 This is a schematic diagram of an integrated unitized welding platform for an automobile subframe in one embodiment. Figure 3 ;

[0014] Figure 5-1 yes Figure 3 Schematic diagram of the structure of the clamping and positioning unit I at A Figure 1 ;

[0015] Figure 5-2 yes Figure 3 Schematic diagram of the structure of the clamping and positioning unit I at A Figure 2 ;

[0016] Figure 6-1 yes Figure 3 Schematic diagram of the structure of the clamping and positioning unit II at B Figure 1 ;

[0017] Figure 6-2 yes Figure 3 Schematic diagram of the structure of the clamping and positioning unit II at B Figure 2 ;

[0018] Figure 7-1 yes Figure 3 Structural diagram of the clamping and positioning unit III at C in the middle Figure 1 ;

[0019] Figure 7-2 yes Figure 3 Structural diagram of the clamping and positioning unit III at C in the middle Figure 2 ;

[0020] Figure 8-1 yes Figure 3 The structure of the clamping and positioning unit IV at D in the middle Figure 1 ;

[0021] Figure 8-2 yes Figure 3 The structure of the clamping and positioning unit IV at D in the middle Figure 1 .

[0022] In the figure:

[0023] 1-clamping device I; 2-clamping device II; 3-clamping device III; 4-clamping device IV;

[0024] 5-clamping and positioning unit I; 6-clamping and positioning unit II; 7-clamping and positioning unit III; 8-clamping and positioning unit IV; 9-welding tooling base;

[0025] 101-front cross beam 101; 102-left longitudinal beam; 103-rear cross beam 103; 104-right longitudinal beam 104; 105-component I; 106-component II; 107-component III; 108-component IV.

[0026] 51-positioning assembly Ⅰ; 52-pressing arm Ⅰ; 53-clamping cylinder Ⅰ; 54-adapter assembly Ⅰ; 55-standard positioning hole Ⅰ and locking hole Ⅰ;

[0027] 61-positioning assembly II; 62-pressing arm II; 63-clamping cylinder II; 64-adapter assembly II; 65-standard positioning hole II and locking hole II;

[0028] 71-positioning assembly III; 72-pressing arm III; 73-clamping cylinder III; 74-adapter assembly III;

[0029] 81-positioning assembly IV; 82-pressing arm IV; 83-clamping cylinder IV; 84-adapter assembly IV. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] An integrated unitized welding platform for automobile subframes comprises a welding tool base 9, on which are respectively provided a clamping device I1 for clamping and positioning a front cross beam 101, a clamping device III3 for clamping and positioning a rear cross beam 103, a clamping device II2 for clamping and positioning a left longitudinal beam 102, and a clamping device IV4 for clamping and positioning a right longitudinal beam 104; the welding tool base 9 is also respectively provided with corresponding clamping and positioning units for clamping and positioning various components of a front frame connection structure; each of the clamping and positioning units comprises a positioning assembly, a clamping assembly and a switching assembly; the positioning assembly and the clamping assembly are integrated on the switching assembly; the clamping and positioning units are detachably mounted on the welding tool base via the switching assembly.

[0032] The structure of the positioning assembly is adapted to different part shapes.

[0033] The clamping assembly is mainly composed of a clamping cylinder and a pressing arm.

[0034] The adapter assembly is provided with standard positioning holes and locking holes for connecting with the welding fixture base. The welding fixture base 9 is provided with standard positioning holes and locking holes corresponding to those on the adapter assembly. The standard positioning holes and locking holes are highly versatile, and the corresponding clamping and positioning unit installation positions can be quickly found when switching between different product production lines, thus facilitating the installation and positioning of the clamping and positioning unit on the welding fixture base 9.

[0035] Below Figure 1 The automobile subframe in the example is welded by using the automobile subframe integrated unitized welding platform. Figure 1 The automobile subframe is welded by front cross beam 101, left longitudinal beam 102, rear cross beam 103, right longitudinal beam 104 and parts of each connection structure; the parts of each connection structure include parts I105, parts II106, parts III107 and parts IV108. The parts I105 are symmetrically arranged on the inner side of the front cross beam 101 and connected to the front cross beam 101, and are respectively connected to the left longitudinal beam 102 and the right longitudinal beam 104; the parts II106 are respectively arranged at the bottom of the legs of the left longitudinal beam 102 and the right longitudinal beam 104, and are respectively connected to the left longitudinal beam 102 and the right longitudinal beam 104; the parts III107 are arranged on the outer side of the front cross beam 101 and close to the left side, and are connected to the front cross beam 101; two parts IV108 are arranged on the same side of the parts III107, and the two parts IV108 are symmetrically arranged on the outer side of the front cross beam 101 and connected to the front cross beam 101.

[0036] In this embodiment, an integrated unitized welding platform for an automobile subframe is as follows Figure 2-Figure 4 As shown, according to the different structures and installation methods of the components of the automobile subframe connection structure, the clamping and positioning unit has the following different implementation methods.

[0037] Embodiment 1: Clamping and positioning unit Ⅰ5 of component Ⅰ105.

[0038] like Figure 5-1 and Figure 5-2 As shown: the clamping and positioning unit of the component Ⅰ105 includes a positioning assembly Ⅰ51, a clamping assembly and an adapter assembly Ⅰ54; the clamping assembly in this embodiment 1 includes a pressing arm Ⅰ52 and a clamping cylinder Ⅰ53. The component Ⅰ105 is placed on the positioning support seat of the positioning assembly Ⅰ51, and the pressing arm Ⅰ52 presses and positions the component Ⅰ105 on the positioning support seat through the clamping cylinder Ⅰ53. According to the structure and installation method of the component Ⅰ105, the positioning assembly Ⅰ51, the pressing arm Ⅰ52 and the clamping cylinder Ⅰ53 are integrated on the adapter assembly Ⅰ54 through a number of connecting plates; the adapter assembly Ⅰ54 is provided with a standard positioning hole Ⅰ and a locking hole Ⅰ55, which is convenient for installation and positioning on the welding tooling base 9.

[0039] Embodiment 2: Clamping and positioning unit II6 of component II106.

[0040] like Figure 6-1 and Figure 6-2 As shown: the clamping and positioning unit Ⅱ6 of the component Ⅱ106 includes a positioning assembly Ⅱ61, a clamping assembly and an adapter assembly Ⅱ64; the clamping assembly in this embodiment 2 includes a pressure arm Ⅱ62 and a clamping cylinder Ⅱ63. The component Ⅱ106 is placed on the positioning support seat of the positioning assembly Ⅱ61, and the pressure arm Ⅱ62 presses and positions the component Ⅱ106 on the positioning support seat through the clamping cylinder Ⅱ63. According to the structure and installation method of the component Ⅱ106, the positioning assembly Ⅱ61, the pressure arm Ⅱ62 and the clamping cylinder Ⅱ63 are integrated on the adapter assembly Ⅱ64 through a number of connecting plates; the adapter assembly Ⅱ64 is provided with a standard positioning hole Ⅱ and a locking hole Ⅱ65, which is convenient for installation and positioning on the welding tooling base 9.

[0041] Embodiment 3: Clamping and positioning unit III7 of component III107.

[0042] like Figure 7-1 and Figure 7-2As shown: the clamping and positioning unit III7 of the component III107 includes a positioning assembly III71, a clamping assembly and an adapter assembly III74; the clamping assembly in this embodiment 3 includes a pressure arm III72 and a clamping cylinder III73. The component III107 is placed on the positioning support seat of the positioning assembly III71, and the pressure arm III72 presses and positions the component III107 on the positioning support seat through the clamping cylinder III73. According to the structure and installation method of the component III107, the positioning assembly III71, the pressure arm III72 and the clamping cylinder III73 are integrated on the adapter assembly III74 through a number of connecting plates; the adapter assembly III74 is provided with a standard positioning hole III and a locking hole III, which is convenient for installation and positioning on the welding tooling base 9.

[0043] Embodiment 4: Clamping and positioning unit IV8 of component IV108.

[0044] like Figure 8-1 and Figure 8-2 As shown: the clamping and positioning unit IV8 of the component IV108 includes a positioning assembly IV81, a clamping assembly and an adapter assembly IV84; the clamping assembly in this embodiment 4 includes a pressing arm IV82 and a clamping cylinder IV83. The component IV108 is placed on the positioning support seat of the positioning assembly IV81, and the pressing arm IV82 presses and positions the component IV108 on the positioning support seat through the clamping cylinder IV83. According to the structure and installation method of the component IV108, the positioning assembly IV81, the pressing arm IV82 and the clamping cylinder IV83 are integrated on the adapter assembly IV84 through a number of connecting plates; the adapter assembly IV84 is provided with a standard positioning hole IV and a locking hole IV, which is convenient for installation and positioning on the welding tooling base 9.

[0045] As a variation of the above embodiments 1-4, the clamping device I1, clamping device II2, clamping device III3 and clamping device IV4 can also be designed as corresponding clamping and positioning units according to the sizes of the crossbeam and longitudinal beam of the front frame of the automobile.

[0046] This automobile subframe integrated unitized welding platform can be used for welding different models of automobile front frames. When different models of automobile front frames need to be welded, only the corresponding clamping and positioning units need to be replaced as a whole to complete the switching of different product production lines, and then welding is performed by the manipulator. Because the parts of each connection structure have been pre-pressed and positioned in the clamping and positioning unit, the clamping and positioning unit is connected to the corresponding workstation of the welding tool base 9 through the standard positioning holes and locking holes on the adapter assembly. Therefore, the product production line switching is fast and accurate, and the switching of the manipulator coordinate calibration can be avoided. There is no need to calibrate the weld bead multiple times, which improves work efficiency.

[0047] It should be noted that the electrical equipment (such as the clamping cylinder, etc.) and control system involved in the clamping and positioning unit in this embodiment are all existing technologies, so the structure and use control method of the electrical equipment will not be repeated.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated unitized welding platform for automobile subframes, comprising a welding tool base, on which are respectively provided a clamping device I for pressing and positioning a front crossbeam, a clamping device III for pressing and positioning a rear crossbeam, a clamping device II for pressing and positioning a left longitudinal beam, and a clamping device IV for pressing and positioning a right longitudinal beam; characterized in that: The welding tooling base is also provided with corresponding clamping and positioning units for pressing and positioning various components of the front frame connection structure; each of the clamping and positioning units includes a positioning component, a clamping component and a switching component; the positioning component and the clamping component are integrated on the switching component; the clamping and positioning unit is detachably mounted on the tooling platform through the switching component.

2. The integrated unitized welding platform for automobile subframe according to claim 1, characterized in that: The structure of the positioning assembly is adapted to different part shapes.

3. The integrated unitized welding platform for automobile subframe according to claim 1, characterized in that: The clamping assembly is mainly composed of a clamping cylinder and a pressing arm.

4. The automobile subframe integrated unitized welding platform according to claim 1, characterized in that: The adapter assembly is provided with standard positioning holes and locking holes for connecting with the welding tool base.

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