Automatic welding device for upper tubular column assembly

Abstract

The utility model relates to the technical field of automobile accessory production, and discloses an automatic welding device for an upper tubular column assembly, which comprises a welding gun fixedly arranged on a manipulator, a rotating tool is arranged on one side of the welding gun, the rotating tool comprises a rotating mandrel and a positioning table which are coaxially and fixedly connected, and a positioning pin is arranged on the positioning table; the rotating core shaft is rotationally connected to the base, and a detachable positioning insertion block is connected to the rotating core shaft in a sleeving mode. According to the automatic welding device, the upper pipe column and the support can be conveniently installed and positioned, the welding work can be automatically completed through cooperation of the mechanical arm and the rotating tool, the welding efficiency is effectively improved, meanwhile, welding sputtering materials can be effectively prevented from being sputtered to the body of a worker, and the working safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessory production, especially relates to a pipe column assembly automatic welding device. BACKGROUND

[0002] The pipe column assembly is one of important components of the automobile steering system, and is generally welded by multiple sheet metal parts due to its complex structure. The existing pipe column assembly welding work is generally as follows: the staff first fixes the pipe column and the support on the corresponding welding fixture, then holds the welding gun with one hand and rotates the fixture with the other hand to weld the pipe column assembly. Since the feeding and welding work are completed manually, the welding efficiency is relatively low. Moreover, a large amount of welding spatter will be generated during the welding process, which will fall on the staff and cause certain safety hazards. SUMMARY

[0003] The utility model aims at providing a pipe column assembly automatic welding device, which can facilitate the installation and positioning of the pipe column and the support, and can automatically complete the welding work through the cooperation of the mechanical hand and the rotating tool, thereby effectively preventing the welding spatter from splashing on the worker, improving the welding efficiency and the work safety.

[0004] The above technical purpose of the utility model is achieved by the following technical scheme.

[0005] A pipe column assembly automatic welding device comprises a welding gun fixed on a mechanical hand, a rotating tool is arranged on one side of the welding gun, the rotating tool comprises a rotating shaft and a positioning table fixedly connected with the same shaft, and a positioning pin is arranged on the positioning table; the rotating shaft is rotationally connected to a base, and the mechanical hand is electrically connected to a controller.

[0006] A detachable positioning plug is sleeved on the rotating shaft.

[0007] During welding, the positioning hole on the support is aligned with the positioning pin, and the support is placed on the positioning table; then the pipe column is inserted into the support from the upper end of the rotating shaft, the positioning plug is inserted into the rotating shaft through the outer wall of the pipe column, so that the relative position relationship between the pipe column and the rotating shaft is positioned; the welding gun is moved close to the place to be welded between the support and the pipe column under the action of the mechanical hand, then the rotating shaft is rotated, the rotating shaft drives the positioning table and the positioning plug to rotate synchronously, so that the pipe column and the support are synchronously rotated, and the two are welded.

[0008] The utility model is further provided with a cylinder fixed on the positioning table, a pressing plate is fixed to the piston rod end of the cylinder, the pressing plate can press the edge of the support, and the support can be prevented from moving up and down during welding.

[0009] The utility model further sets up: the air cylinder is corner air cylinder, corner air cylinder can drive the pressing plate to turn, and the support will not interfere with the pressing plate during installation, thereby facilitating the installation of workpieces, and the welding efficiency can be further improved.

[0010] The utility model further sets up: the bottom of rotating mandrel is provided with gear, gear is engaged with rack, and the rack is fixed on the sliding block of linear module.

[0011] The utility model further sets up: the rotary mandrel is formed with the insertion hole matched with the positioning plug;

[0012] The end of positioning plug is formed with guide cone part. Through setting up guide cone part, positioning plug can conveniently pass through upper pipe column and insert into insertion hole, thereby facilitating the positioning work of upper pipe column.

[0013] The utility model further sets up: the bottom of insertion hole is fixed with permanent magnet, and positioning plug can be attracted by permanent magnet. Through permanent magnet attracting positioning plug, it can prevent positioning plug from automatically falling and bruising workpiece or welding gun during welding.

[0014] The utility model further sets up: the inside of positioning plug is hollow. The weight of positioning plug can be effectively reduced, and the work intensity of installation is reduced.

[0015] The utility model has the following advantages:

[0016] Compared with prior art, it can facilitate the installation and positioning work of upper pipe column and support, and can automatically complete welding work through the cooperation of mechanical hand and tooling, thereby effectively improving welding efficiency, preventing welding sputtering material from splashing on workers, and improving work safety. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model;

[0018] Figure 2 It is Figure 1 It is the sectional view about A-A;

[0019] Figure 3 It is Figure 1 It is the sectional view about B-B.

[0020] Reference signs: 1, welding gun;

[0021] 2, rotary tooling; 21, rotating mandrel; 22, positioning table; 23, positioning pin; 24, base; 25, positioning plug; 26, air cylinder; 27, pressing plate; 28, permanent magnet;

[0022] 211, jack;

[0023] 251, guide cone;

[0024] 31, gear; 32, rack; 33, linear module; 34, slider;

[0025] 8, upper column;

[0026] 9, bracket. DETAILED DESCRIPTION

[0027] The specific embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0028] The following references Figures 1 to 3 The utility model is explained as follows:

[0029] An upper column assembly automatic welding device, including the welding torch 1 that is fixed in the mechanical arm, one side of the welding torch 1 is equipped with tooling rotation tooling 2, the rotation tooling 2 includes the rotation arbor 21 and the positioning table 22 of coaxial fixed connection, the positioning table 22 is equipped with the positioning pin 23, the positioning table 22 is fixed with the cylinder 26, the piston rod end of cylinder 26 is fixed with the pressing plate 27, and the pressing plate can be pressed at the edge of the bracket and prevent the bracket from moving up and down during welding. The cylinder 26 is preferably a corner cylinder, which can drive the pressing plate to turn, so that the bracket does not interfere with the pressing plate during installation, thereby facilitating the installation of the workpiece and further improving the welding efficiency.

[0030] The rotation arbor 21 is rotatably connected to the base 24, the base is fixed on the corresponding rack, the bottom of the rotation arbor 21 is fixed with a gear 31, the gear 31 is engaged with a rack 32, and the rack 32 is fixed on the slider 34 of the linear module 33; the linear module 32 is fixed on the base 24, and the linear module and the mechanical arm are electrically connected with the controller.

[0031] The rotation arbor 21 is rotatably connected to the base 24, the base is fixed on the corresponding rack, the bottom of the rotation arbor 21 is fixed with a gear 31, the gear 31 is engaged with a rack 32, and the rack 32 is fixed on the slider 34 of the linear module 33; the linear module 32 is fixed on the base 24, and the linear module and the mechanical arm are electrically connected with the controller.

[0032] The welding step is as follows: first, align the positioning hole on the support 9 with the positioning pin and place the support on the positioning table 22; then, insert the upper pipe column 8 into the support 8 from the upper end of the rotating mandrel 21, and insert the positioning plug 25 through the outer wall of the upper pipe column 8 and into the rotating mandrel 21, thereby positioning the relative position relationship between the upper pipe column and the rotating mandrel; the welding gun 1 is moved close to the place to be welded between the support and the upper pipe column under the action of the manipulator, then the linear module drives the rack 32 to move through the sliding block 34, the rack drives the gear 31 to rotate, the gear drives the rotating mandrel to rotate, the rotating mandrel drives the positioning table and the positioning plug to rotate synchronously, thereby making the upper pipe column 8 and the support 9 rotate synchronously, and thus welding the two.

[0033] The rotating mandrel 21 is formed with a plug hole 211 matched with the positioning plug 25;

[0034] The end of the positioning plug 25 is formed with a guide cone 251. By arranging the guide cone, the positioning plug can be conveniently inserted through the upper pipe column 8 and into the plug hole, thereby facilitating the positioning work of the upper pipe column.

[0035] The bottom of the plug hole 211 is fixed with a permanent magnet 28; the positioning plug 25 can be attracted by the permanent magnet. By attracting the positioning plug with the permanent magnet, it can be prevented that the positioning plug automatically falls and injures the workpiece or the welding gun during the welding process.

[0036] The positioning plug 25 is hollow inside, which can effectively reduce the weight of the positioning plug and reduce the work intensity of installation.

[0037] The above only describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present application.

Claims

1. A device for automatic welding of an upper column assembly, comprising a welding torch (1) fixed on a manipulator, one side of the welding torch (1) being provided with a rotary tool (2), characterized in that: The rotary tool (2) comprises a rotating shaft (21) and a positioning table (22) fixedly connected coaxially, and the positioning table (22) is provided with a positioning pin (23); The rotating shaft (21) is sleeved with a detachable positioning plug (25).

2. The automatic welding device for a column assembly according to claim 1, wherein: The positioning table (22) is fixedly provided with a cylinder (26), and the piston rod end of the cylinder (26) is fixedly provided with a pressing plate (27).

3. The automatic welding device for a column assembly according to claim 2, wherein: The cylinder (26) is a rotary angle cylinder.

4. The automatic welding device for a column assembly according to claim 1, characterized in that: The bottom of the rotating shaft (21) is fixedly provided with a gear (31), the gear (31) is engaged with a rack (32), and the rack (32) is fixed on a sliding block (34) of a linear module (33).

5. The automatic welding device for a column assembly according to claim 1, wherein: The rotating shaft (21) is formed with a plug hole (211) matched with the positioning plug (25); The end of the positioning plug (25) is formed with a guide cone part (251).

6. The automatic welding device for a column assembly according to claim 5, wherein: The bottom of the plug hole (211) is fixedly provided with a permanent magnet (28); the positioning plug (25) can be attracted by the permanent magnet.

7. The automatic welding device for a gooseneck assembly of claim 5, wherein: The positioning plug (25) is internally hollow.

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