Welding fixture for rear section of right side frame

Abstract

The utility model discloses a right side frame rear section welding clamp which is characterized by comprising a clamp bottom plate, two oppositely-arranged positioning supporting seats are arranged on the clamp bottom plate, a cylindrical pin and a rhombic pin are arranged on the two positioning supporting seats respectively, an end positioning seat is arranged on one side of each positioning supporting seat, and a positioning pin is arranged on the other side of each positioning supporting seat. An end positioning block is arranged on the end positioning seat, a moving platform capable of horizontally moving is arranged on one side of the positioning supporting seat, a hook positioning seat is arranged on the moving platform, and a hook pressing mechanism is arranged on the moving platform and used for pressing a hook on the hook positioning seat and the rear section of the right frame. The hook clamping device has the advantages of being simple in structure, convenient to clamp, high in hook positioning accuracy and capable of guaranteeing that deformation is not prone to occurring in the clamping and welding process, thereby improving welding quality, guaranteeing high product consistency and being suitable for automatic welding of a robot.

Description

Technical Field

[0001] The utility model relates to the field of welding fixtures, in particular to a right side frame rear section welding fixture. Background Art

[0002] The rear section of the automobile side frame is a U-shaped groove structure, and multiple metal hooks need to be welded on the outside of the groove. However, the U-shaped groove is a thin-walled part, and the metal hook is a curved structure in space. Therefore, the positioning accuracy of the existing welding fixture is not high, and it is easy to cause deformation of the rear section of the side frame during clamping, which will affect the quality of the welded product and cause a high scrap rate. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a right frame rear section welding fixture, which has a simple structure, high positioning accuracy and good clamping stability.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A welding fixture for the rear section of the right frame, characterized in that it includes a fixture base plate, two relatively arranged positioning support seats are provided on the fixture base plate, cylindrical pins and diamond pins are respectively provided on the two positioning support seats, an end positioning seat is provided on one side of the positioning support seat, an end positioning block is provided on the end positioning seat, a horizontally movable platform is provided on one side of the positioning support seat, a hook positioning seat is provided on the mobile platform, and a hook clamping mechanism is provided on the mobile platform for clamping the hook on the hook positioning seat and the rear section of the right frame.

[0006] Furthermore, an auxiliary support seat is arranged between the two positioning support seats, the top surface of the auxiliary support seat has an avoidance groove, and the auxiliary support seat is located below the hook welding position.

[0007] Furthermore, two parallel linear guide slider assemblies are provided on the fixture bottom plate, the mobile platform is connected to the slider, a horizontal cylinder is provided on one side of the fixture bottom plate, and the front end of the piston rod of the horizontal cylinder is connected to the mobile platform.

[0008] Furthermore, the hook positioning seat comprises an elevated seat arranged on the mobile platform, a cantilever seat is arranged on the top of the elevated seat, a cantilever end of the cantilever seat has a positioning groove, and a hook end positioning seat is arranged on one side of the positioning groove.

[0009] Furthermore, the hook clamping mechanism includes a lever clamping cylinder arranged on the mobile platform, a hook clamping block is provided on the clamping arm of the lever clamping cylinder, and the hook clamping block has a clamping portion corresponding to the hook positioning seat and the hook welding position on the rear section of the right frame.

[0010] The beneficial effects of the utility model include: simple structure, convenient clamping, high positioning accuracy of the hook, ensuring that deformation is not easy to occur during clamping and welding, thereby improving welding quality, ensuring high product consistency, and being suitable for robot automatic welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a structural schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

[0014] A kind of Figure 1-2 The welding fixture for the rear section of the right frame shown includes a fixture base plate 1, on which two relatively arranged positioning support seats 2 are provided, and the two positioning support seats 2 are respectively provided with cylindrical pins 3 and diamond pins 4 for positioning the positioning holes at the bottom of the groove of the rear section of the right frame. An end positioning seat 5 is provided on one side of the positioning support seat 2, and an end positioning block 6 is provided on the end positioning seat 5 for limiting the end of the rear section of the right frame to prevent its axial deformation. A horizontally movable mobile platform 7 is provided on one side of the positioning support seat 2, and a hook positioning seat 8 is provided on the mobile platform 7 for positioning the hook. A hook clamping mechanism is provided on the mobile platform 7 for clamping the hook on the hook positioning seat 8 and the rear section of the right frame.

[0015] In order to ensure that the welding position between the hook and the rear section of the right frame is not deformed, an auxiliary support seat 9 is arranged between the two positioning support seats 2 of this embodiment. The top surface of the auxiliary support seat 9 has an avoidance groove. The auxiliary support seat 9 is located below the welding position of the hook.

[0016] Two parallel linear guide slider assemblies are arranged on the fixture base plate 1, and the mobile platform 7 is connected to the slider. A horizontal cylinder 10 is arranged on one side of the fixture base plate 1, and the front end of the piston rod of the horizontal cylinder 10 is connected to the mobile platform 7, thereby driving the mobile platform to move horizontally. A blocking block is arranged at the front end of the linear guide slider assembly.

[0017] The hook positioning seat 8 includes a raised seat 11 arranged on the mobile platform 7, a cantilever seat 12 is arranged on the top of the raised seat 11, the cantilever end of the cantilever seat 12 has a positioning groove, and a hook end positioning seat 13 is arranged on one side of the positioning groove. The hook clamping mechanism includes a lever clamping cylinder 14 arranged on the mobile platform 7, a hook pressing block 15 is arranged on the pressing arm of the lever clamping cylinder 14, and the hook pressing block 15 has a clamping portion corresponding to the hook positioning seat 8 and the hook welding position on the right rear section of the frame. When the hook is clamped, the horizontal cylinder 10 retracts, the hook pressing block 15 opens, and the hook is positioned in the hook positioning groove, and the right rear section of the frame is positioned on the positioning support seat 2, and then the horizontal cylinder 10 moves forward, and finally the lever clamping cylinder 14 acts to clamp the hook.

[0018] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A right frame rear section welding fixture, characterized in that: The invention comprises a fixture base plate (1), on which two positioning support seats (2) arranged opposite to each other are arranged, on which the two positioning support seats (2) are respectively provided with cylindrical pins (3) and rhombus pins (4), on one side of the positioning support seat (2) is provided an end positioning seat (5), on which an end positioning block (6) is provided, on one side of the positioning support seat (2) is provided a horizontally movable platform (7), on which a hook positioning seat (8) is provided a mobile platform (7), and on which a hook clamping mechanism is provided a mobile platform (7) for clamping the hook onto the hook positioning seat (8) and the rear section of the right frame.

2. A right side frame rear section welding fixture according to claim 1, characterized in that: An auxiliary support seat (9) is arranged between the two positioning support seats (2), the top surface of the auxiliary support seat (9) is provided with an avoidance groove, and the auxiliary support seat (9) is located below the hook welding position.

3. A right side frame rear section welding fixture according to claim 1, characterized in that: The fixture base plate (1) is provided with two parallel linear guide slider assemblies, the movable platform (7) is connected to the slider, and a horizontal cylinder (10) is provided on one side of the fixture base plate (1), and the front end of the piston rod of the horizontal cylinder (10) is connected to the movable platform (7).

4. The right side frame rear section welding fixture according to claim 1, characterized in that: The hook positioning seat (8) comprises a raised seat (11) arranged on the mobile platform (7), a cantilever seat (12) is arranged on the top of the raised seat (11), a cantilever end of the cantilever seat (12) has a positioning groove, and a hook end positioning seat (13) is arranged on one side of the positioning groove.

5. The right side frame rear section welding fixture according to claim 1, characterized in that: The hook clamping mechanism comprises a lever clamping cylinder (14) arranged on the mobile platform (7), a hook clamping block (15) is provided on the clamping arm of the lever clamping cylinder (14), and the hook clamping block (15) has a clamping portion corresponding to the hook positioning seat (8) and the hook welding position on the rear section of the right frame.

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