Tow hook welding clamp

Abstract

The utility model discloses a tow hook welding fixture which is characterized in that the tow hook welding fixture comprises a support, a tool table plate and a fixture bottom plate, the tool table plate is arranged at the top of the support, the fixture bottom plate is arranged on the tool table plate, a plurality of clamping stations are arranged on the fixture bottom plate at intervals in the length direction, and the clamping stations are arranged on the fixture bottom plate. Each clamping station comprises a first shaft rod positioning seat, a second shaft rod positioning seat, a towing hook positioning seat, a shaft rod end pressing mechanism, a shaft rod vertical pressing mechanism and a towing hook pressing mechanism; the automatic welding device has the advantages of being simple in structure, convenient to clamp, suitable for automatic welding of a robot, capable of remarkably improving welding efficiency, high in product welding quality and capable of reducing labor intensity of workers.

Description

Technical Field

[0001] The utility model relates to the field of welding fixtures, in particular to a trailer hook welding fixture. Background Art

[0002] The trailer hook is an important emergency rescue device on the car, which is generally installed on the bumper of the car; when the car is in trouble, it is often necessary to use other vehicles to drag the trailer hook for towing operations. There are two ways to install the trailer hook and the bumper: a welded structure and a screwed structure; the welded structure refers to welding the trailer hook directly to the bumper, and the screwed structure refers to welding the trailer hook sleeve with an internal thread to the bumper, and the trailer hook has an external thread to connect to the trailer hook sleeve. The structure of the trailer hook includes a shaft and a buckle part. The buckle part is a round bar with a diameter smaller than the shaft, which is bent and formed, and then connected to the end of the shaft away from the thread by welding. The existing trailer hook is manually welded and clamped by a simple quick-clamp fixture, but the existing method has high labor intensity for workers, low welding efficiency, poor positioning accuracy, and poor consistency of welded trailer hooks. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a trailer hook welding fixture, which is suitable for robot welding of trailer hooks and has high welding efficiency and high product consistency.

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

[0005] A trailer hook welding fixture, characterized in that it comprises a bracket, a tooling plate, and a fixture bottom plate, wherein the tooling plate is arranged on the top of the bracket, the fixture bottom plate is arranged on the tooling plate, and a plurality of clamping stations are arranged at intervals along the length direction on the fixture bottom plate, each clamping station comprises a first shaft rod positioning seat, a second shaft rod positioning seat, a towing hook positioning seat, a shaft rod end pressing mechanism, a shaft rod vertical clamping mechanism, and a towing hook clamping mechanism;

[0006] The first shaft rod positioning seat, the second shaft rod positioning seat, and the towing hook positioning seat are arranged in a straight line along the width direction of the clamp bottom plate, the first shaft rod positioning seat and the second shaft rod positioning seat both include support blocks of equal height, and limit blocks are arranged on both sides of the support blocks, and the second shaft rod positioning seat is provided with an end positioning block;

[0007] The towing hook positioning seat comprises a towing hook supporting plate, the top surface of the towing hook supporting plate is a plane, and a right-angle positioning block and a pre-positioning block are arranged on the towing hook supporting plate.

[0008] Furthermore, the shaft rod vertical clamping mechanism includes a first lever clamping cylinder arranged on the fixture bottom plate, a first clamping block is arranged on the clamping arm of the first lever clamping cylinder, and the first clamping block is arranged between the first shaft rod positioning seat and the second shaft rod positioning seat.

[0009] Furthermore, an auxiliary support block is provided between the first shaft rod positioning seat and the second shaft rod positioning seat.

[0010] Furthermore, the shaft rod end pressure mechanism comprises an end pressure cylinder, which is arranged on the fixture bottom plate through a cylinder mounting seat, and an end pressure block is arranged at the front end of the cylinder rod of the end pressure cylinder.

[0011] Furthermore, the towing hook clamping mechanism includes a second lever clamping cylinder arranged on the clamp bottom plate, a towing hook clamping block is arranged on the pressing arm of the second lever clamping cylinder, and the towing hook clamping block is located above the towing hook support plate.

[0012] The beneficial effects of the utility model include: simple structure, convenient clamping, applicable to robot automatic welding, significantly improved welding efficiency, high product welding quality, and reduced labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the clamping station structure of the utility model. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

[0016] A kind of Figure 1 -The trailer hook welding fixture shown in the figure comprises a bracket 1, a tooling plate 2, and a fixture bottom plate 3, wherein the tooling plate 2 is arranged on the top of the bracket 1, and the fixture bottom plate 3 is arranged on the tooling plate 2. A plurality of clamping stations are arranged at intervals along the length direction on the fixture bottom plate 3, and two adjacent clamping stations are arranged in a staggered manner. Each clamping station comprises a first shaft rod positioning seat 4, a second shaft rod positioning seat 5, a towing hook positioning seat 6, a shaft rod end pressing mechanism, a shaft rod vertical clamping mechanism, and a towing hook clamping mechanism.

[0017] The first shaft rod positioning seat 4, the second shaft rod positioning seat 5, and the towing hook positioning seat 6 are arranged in a straight line along the width direction of the clamp bottom plate 3. The first shaft rod positioning seat 4 and the second shaft rod positioning seat 5 both include support blocks 7 of equal height for supporting the shaft rod portion. Limiting blocks 8 are provided on both sides of the support block 7. The limiting blocks 8 are higher than the support block 7, so that the shaft rod can be directly placed on the top surface of the support block 7. An end positioning block 9 is provided on the second shaft rod positioning seat 5 for positioning one end of the shaft rod; the other end of the shaft rod is pressed by a shaft rod end pressing mechanism. The shaft rod end pressing mechanism includes an end pressing cylinder 13, which is arranged on the clamp bottom plate 3 through a cylinder mounting seat 14, and an end pressing block 17 is provided at the front end of the cylinder rod of the end pressing cylinder 13.

[0018] The shaft rod vertical pressing mechanism includes a first lever pressing cylinder 20 disposed on the fixture bottom plate 3, and a first pressing block 15 is disposed on the pressing arm of the first lever pressing cylinder 20, and the first pressing block 15 is disposed between the first shaft rod positioning seat 4 and the second shaft rod positioning seat 5. The first pressing block 15 presses the middle part of the rod, and an auxiliary support block 16 is disposed between the first shaft rod positioning seat 4 and the second shaft rod positioning seat 5. The auxiliary support block 16 is supported in the middle of the rod.

[0019] The hook positioning seat 6 includes a hook support plate 10, the top surface of which is a plane, and a right-angle positioning block 11 and a pre-positioning block 12 are provided on the hook support plate 10. When positioning, the hook is placed on the top surface of the hook support plate 10, and the hook is positioned by the right-angle positioning block 11, and the welding end of the hook extends to the second shaft rod positioning seat 5 to cooperate with the grooves on both sides of the shaft rod. Then the hook is pressed by the hook pressing mechanism.

[0020] The towing hook pressing mechanism comprises a second lever pressing cylinder 18 arranged on the clamp bottom plate 3 , a towing hook pressing block 19 is arranged on the pressing arm of the second lever pressing cylinder 18 , and the towing hook pressing block 19 is located above the towing hook supporting plate 10 .

[0021] 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 trailer hook welding fixture, characterized in that: The invention comprises a support (1), a tooling table (2), and a fixture base plate (3), wherein the tooling table (2) is arranged on the top of the support (1), and the fixture base plate (3) is arranged on the tooling table (2), and a plurality of clamping stations are arranged at intervals along the length direction on the fixture base plate (3), and each clamping station comprises a first shaft rod positioning seat (4), a second shaft rod positioning seat (5), a towing hook positioning seat (6), a shaft rod end pressing mechanism, a shaft rod vertical clamping mechanism, and a towing hook clamping mechanism; The first shaft rod positioning seat (4), the second shaft rod positioning seat (5), and the towing hook positioning seat (6) are arranged in a straight line along the width direction of the clamp base plate (3); the first shaft rod positioning seat (4) and the second shaft rod positioning seat (5) both include support blocks (7) of equal height, and limiting blocks (8) are arranged on both sides of the support blocks (7); and the second shaft rod positioning seat (5) is provided with an end positioning block (9); The towing hook positioning seat (6) comprises a towing hook support plate (10), the top surface of the towing hook support plate (10) is a plane, and a right-angle positioning block (11) and a pre-positioning block (12) are arranged on the towing hook support plate (10).

2. A trailer hook welding fixture according to claim 1, characterized in that: The shaft rod vertical clamping mechanism comprises a first lever clamping cylinder (20) arranged on the clamp base plate (3), a first clamping block (15) is arranged on the clamping arm of the first lever clamping cylinder (20), and the first clamping block (15) is arranged between the first shaft rod positioning seat (4) and the second shaft rod positioning seat (5).

3. The trailer hook welding fixture according to claim 1, characterized in that: An auxiliary support block (16) is provided between the first shaft rod positioning seat (4) and the second shaft rod positioning seat (5).

4. The trailer hook welding fixture according to claim 1, characterized in that: The shaft rod end pressure mechanism comprises an end pressure cylinder (13), the end pressure cylinder (13) is arranged on the fixture bottom plate (3) through a cylinder mounting seat (14), and an end pressure block (17) is arranged at the front end of the cylinder rod of the end pressure cylinder (13).

5. The trailer hook welding fixture according to claim 1, characterized in that: The towing hook clamping mechanism comprises a second lever clamping cylinder (18) arranged on the clamp base plate (3), a towing hook clamping block (19) is arranged on the clamping arm of the second lever clamping cylinder (18), and the towing hook clamping block (19) is located above the towing hook support plate (10).

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