Turnover welding fixture

Abstract

The utility model relates to the technical field of automobile part machining, and particularly discloses a turnover welding fixture which comprises a supporting frame and a fixture mounting frame, a plurality of clamping assemblies are symmetrically arranged on the peripheral side of the top of the fixture mounting frame, and a connecting shaft rotationally connected with the inner side of one end of the supporting frame is arranged at one end of the fixture mounting frame. An adjusting mechanism is arranged between the other end of the clamp mounting frame and the inner side of the other end of the supporting frame and comprises an adjusting shaft, a threaded hole, a threaded shaft and a plurality of adjusting rods, a limiting groove allowing the connecting shaft to pass through is formed in the inner side of the end, connected with the connecting shaft, of the supporting frame, and a limiting block capable of sliding in the limiting groove is further arranged at the end of the connecting shaft. The problems that when the downward surfaces of traditional automobile parts are welded, the overall structure of a clamp mounting frame and a workpiece to be welded needs to be detached, turned over and then welded, operation is complex, and time and labor are consumed are solved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts processing, and specifically discloses a reversible welding fixture. Background Art

[0002] During the automobile production process, automobile parts are welded in multiple positions and between multiple parts. At the same time, welding fixtures are needed to fix the structure of automobile parts before welding. Usually, automobile parts are fixed on the fixture mounting frame of the welding fixture to complete the welding operation of automobile parts quickly and stably.

[0003] In the process of welding automobile parts, the parts to be welded need to be installed on the fixture mounting frame before welding. However, since the welding sites of automobile parts are distributed in multiple parts of their own structure, in the welding process, after the welding of the upward surface of the automobile part is completed, it is necessary to weld the downward surface. At this time, it is necessary to disassemble the workpiece to be welded and the overall structure of the fixture mounting frame, and then flip the overall structure and reinstall and fix it so that the downward surface of the automobile part is adjusted to face upward before continuing to weld the surface of the automobile part. The operation is complicated, time-consuming and labor-intensive, which reduces the work efficiency of automobile parts welding. Therefore, in view of this, the inventor provides a reversible welding fixture to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the problem that when welding the downward-facing surface of traditional automobile parts, the fixture mounting frame and the overall structure of the workpiece to be welded need to be disassembled and then turned over before welding, which is complicated, time-consuming and labor-intensive.

[0005] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides a reversible welding fixture, including a support frame and a fixture mounting frame for accommodating and fixing the workpiece to be welded, and the top circumferential side of the fixture mounting frame is symmetrically provided with a plurality of clamping assemblies for clamping and fixing the workpiece to be welded and the fixture mounting frame, one end of the fixture mounting frame is provided with a connecting shaft rotatably connected to the inner side of one end of the support frame, and an adjustment mechanism for controlling and adjusting the flipping angle of the fixture mounting frame is provided between the other end of the fixture mounting frame and the inner side of the other end of the support frame. The adjustment mechanism includes an adjusting shaft fixedly arranged at an end of the fixture mounting frame away from the connecting shaft, a threaded hole opened on the outer end surface of the adjusting shaft, a threaded shaft fixedly arranged at the inner side of one end of the support frame away from the connecting shaft and matched with the threaded hole, and a plurality of adjustment rods fixedly arranged at the circumferential side of the adjusting shaft, a limiting groove for accommodating the passing of the connecting shaft is provided on the inner side of the end of the support frame connected to the connecting shaft, and a limiting block that can slide in the limiting groove is also provided at the end of the connecting shaft.

[0006] The principles and effects of this basic solution are:

[0007] 1. Compared with the prior art, the utility model supports and fixes the clamp mounting frame by arranging a support frame, thereby improving the stability of the structure. By arranging an adjustment mechanism, one end of the clamp mounting frame is rotatably connected to the support frame and the connecting shaft of the clamp mounting frame can slide relative to the support frame, and the turning adjustment of the clamp mounting frame is realized through the matching adjustment between the threaded hole on the adjusting shaft and the adjusting rod and the threaded shaft of the support frame. The thread matching adjustment method is adopted, which is not only convenient for adjusting the angle, but also can more conveniently control the turning angle of the clamp mounting frame. The operation is simple and easy to use. There is no need to disassemble and flip the overall structure, which reduces the processing volume in the welding work. It solves the problem that when welding the downward surface of traditional automobile parts, the clamp mounting frame and the overall structure of the workpiece to be welded need to be disassembled and flipped before welding, which is complicated, time-consuming and labor-intensive.

[0008] Furthermore, the support frame includes a connecting rod located below the fixture mounting frame and supporting legs arranged at both ends of the connecting rod, the threaded shaft is arranged on the inner side of one end of the supporting legs, and the limit groove is arranged on the inner side of the other end of the supporting legs. By providing the connecting rod and the supporting legs, it is convenient to support and install the fixture mounting frame, so that the fixture mounting frame is installed overhead, providing sufficient movement space for the flip adjustment of the fixture mounting frame to avoid motion interference.

[0009] Furthermore, the clamping assembly includes a fixing seat detachably mounted on the top of the fixture mounting frame, a fixing clamping block arranged at the top of the fixing seat close to one side of the fixture mounting frame, a threaded through hole arranged at the top of the fixing clamping block, a clamping stud threadedly connected to the threaded through hole, and a clamping nut threadedly connected to the clamping stud. By adjusting the threaded connection between the clamping stud, the clamping nut and the threaded through hole, the workpiece to be welded is clamped and fixed between the four ends of the top of the fixture mounting frame and the clamping stud, thereby limiting the longitudinal movement of the workpiece to be welded, having a simple structure, convenient adjustment, and improved structural stability.

[0010] Furthermore, a pad is fixed at the bottom end of the clamping stud, and the cross-sectional area of ​​the pad is larger than the cross-sectional area of ​​the clamping stud. By providing the pad, direct contact between the clamping stud and the workpiece to be welded is avoided, which is conducive to preventing the workpiece to be welded from being locally deformed due to stress.

[0011] Furthermore, the fixture mounting frame is a frame structure, and the fixture mounting frame includes four supporting cross bars that are welded and fixed end to end in sequence, and the fixing seats are detachably connected to the tops of the supporting cross bars. By making the fixture mounting frame a frame structure, the structure is simple, firm, and has a supporting force, and it can also play a role in limiting the workpiece to be welded, which is convenient for preventing the workpiece to be welded from moving in the horizontal direction, making it more convenient to install and weld the workpiece to be welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 A structural stereogram of a reversible welding fixture proposed in an embodiment of the present application is shown;

[0014] Figure 2 A top view of the structure of a flippable welding fixture proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0015] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0016] The figure marks in the drawings of the specification include: support frame 1, clamp mounting frame 2, connecting shaft 3, adjusting shaft 4, threaded shaft 5, adjusting rod 6, workpiece to be welded 7, supporting cross bar 8, connecting rod 9, supporting foot frame 10, fixing seat 11, fixing clamp block 12, clamping stud 13, clamping nut 14, and spacer 15.

[0017] A reversible welding fixture, for example Figure 2 As shown: it includes a support frame 1 and a clamp mounting frame 2 for accommodating and fixing the workpiece 7 to be welded, a total of eight groups of clamping assemblies for clamping and fixing the workpiece 7 to be welded and the clamp mounting frame 2 are symmetrically arranged on the top circumference of the clamp mounting frame 2, and the right end of the clamp mounting frame 2 is provided with a connecting shaft 3 which is rotatably connected to the inner side of the right end of the support frame 1.

[0018] like Figure 1 and Figure 2 As shown, an adjustment mechanism for controlling and adjusting the flipping angle of the clamp mounting frame 2 is provided between the left end of the clamp mounting frame 2 and the inner side of the left end of the support frame 1, the adjustment mechanism includes an adjustment shaft 4 fixedly arranged at the end of the clamp mounting frame 2 away from the connecting shaft 3, a threaded hole opened on the outer end surface of the adjustment shaft 4, a threaded shaft 5 fixedly arranged on the inner side of the end of the support frame 1 away from the connecting shaft 3 and connected with the threaded hole, and four adjustment rods 6 fixedly arranged on the circumferential side of the adjustment shaft 4, a limiting groove for accommodating the connecting shaft 3 to pass through is provided on the inner side of the right end of the support frame 1 connected to the connecting shaft 3, and a limiting block that can slide in the limiting groove is also provided at the end of the connecting shaft 3.

[0019] Among them, Figure 1As shown, the support frame 1 includes a connecting rod 9 located below the clamp mounting frame 2 and supporting legs 10 arranged at the left and right ends of the connecting rod 9, the threaded shaft 5 is arranged on the inner side of the supporting legs 10 at the left end, and the limiting groove is arranged on the inner side of the supporting legs 10 at the right end. The clamping assembly includes a fixing seat 11 detachably mounted on the top of the clamp mounting frame 2, a fixing clamping block 12 arranged at the top of the fixing seat 11 close to the side of the clamp mounting frame 2, a threaded through hole arranged at the top of the fixing clamping block 12, a clamping stud 13 threadedly connected to the threaded through hole, and a clamping nut 14 threadedly connected to the clamping stud 13. A pad 15 is fixed to the bottom end of the clamping stud 13, and the cross-sectional area of ​​the pad 15 is larger than the cross-sectional area of ​​the clamping stud 13, wherein the cross-sectional area of ​​the pad 15 includes but is not limited to twice the cross-sectional area of ​​the clamping stud 13. The clamp mounting frame 2 is a frame structure, and the clamp mounting frame 2 includes four supporting cross bars 8 that are welded and fixed end to end in sequence, wherein two sets of clamping assemblies are installed on the top of each supporting cross bar 8, and the fixing seat 11 is detachably connected to the top of the supporting cross bar 8.

[0020] In the specific implementation process of the present utility model, the workpiece of the automobile parts to be welded is first mounted on the fixture mounting frame 2, so that the four supporting cross bars 8 of the fixture mounting frame 2 respectively support the four ends of the workpiece 7 to be welded, and then the clamping studs 13 of any group of clamping assemblies are respectively screwed downward along the threaded through holes until the pad 15 at the bottom of the clamping stud 13 presses the end surface of the workpiece 7 to be welded against its bottom surface, and then the clamping nut 14 is screwed from the top of the clamping stud 13 to the top of the fixed clamping block 12. Similarly, the remaining seven groups of clamping assemblies are adjusted to clamp and fix the workpiece 7 to be welded between the pad 15 of the clamping stud 13 and the supporting cross bars 8.

[0021] After the workpiece 7 to be welded is clamped and fixed, the existing workpiece welding tool is used to perform welding on the workpiece 7 to be welded. When the welding of the upper surface of the automobile part being welded is completed and it is necessary to flip it to other surfaces for welding, force is directly applied to the adjusting rod 6 to rotate the adjusting shaft 4, so that the adjusting shaft 4 is threadedly connected with the threaded shaft 5. When the adjusting shaft 4 is rotated to the required welding angle, the rotation is stopped. During this process, the overall clamp mounting frame 2 not only undergoes an angle flip, but the clamp mounting frame 2 also moves horizontally along the threaded shaft 5, and the connecting shaft 3 also slides along the limit groove.

[0022] Compared with the prior art, the utility model improves the stability of the structure by providing a support frame 1 to support and fix the clamp mounting frame 2, and by providing an adjusting shaft 4, a threaded shaft 5 and an adjusting rod 6, one end of the clamp mounting frame 2 is rotatably connected to the support frame 1 and the connecting shaft 3 of the clamp mounting frame 2 can slide relative to the support frame 1, and the clamp mounting frame 2 is flipped and adjusted by the threaded hole on the adjusting shaft 4 and the adjusting rod 6 and the threaded shaft 5 of the support frame 1. The threaded matching adjustment method is not only convenient for angle adjustment, but also can more conveniently control the flipping angle of the clamp mounting frame 2. The operation is simple and easy to use. There is no need to disassemble and flip the overall structure, which reduces the processing volume in the welding work. It solves the problem that when welding the downward-facing surface of traditional automobile parts, the overall structure of the clamp mounting frame 2 and the workpiece 7 to be welded needs to be disassembled and flipped before welding, which is complicated, time-consuming and labor-intensive.

[0023] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A reversible welding fixture, characterized in that: The tool holder is a plurality of clamping members, each of which is a plurality of clamping members that are used to clamp and fix the tool holder to the welding machine.

2. A reversible welding fixture according to claim 1, characterized in that: The support frame includes a connecting rod located below the fixture mounting frame and supporting legs arranged at both ends of the connecting rod, a threaded shaft is arranged on the inner side of one end of the supporting legs, and a limiting groove is arranged on the inner side of the other end of the supporting legs.

3. A reversible welding fixture according to claim 2, characterized in that: The clamping assembly includes a fixing seat detachably mounted on the top of the clamp mounting frame, a fixing clamping block arranged at the top of the fixing seat close to one side of the clamp mounting frame, a threaded through hole arranged at the top of the fixing clamping block, a clamping stud threadedly connected to the threaded through hole, and a clamping nut threadedly connected to the clamping stud.

4. The reversible welding fixture according to claim 3, characterized in that: A cushion block is fixedly arranged at the bottom end of the clamping stud, and the cross-sectional area of ​​the cushion block is larger than the cross-sectional area of ​​the clamping stud.

5. The reversible welding fixture according to claim 4, characterized in that: The fixture mounting frame is a frame structure, and the fixture mounting frame includes four supporting cross bars which are connected end to end and welded and fixed in sequence, and the fixing seats are all detachably connected to the tops of the supporting cross bars.

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