Automobile threshold welding auxiliary device

Abstract

The utility model relates to the field of automobile manufacturing, in particular to an auxiliary welding device for an automobile doorsill. The utility model provides an automobile doorsill welding auxiliary device which can fix a reinforcing plate and avoid accidental injury caused by pressing the reinforcing plate by a hand during welding. An automobile doorsill welding auxiliary device comprises a fixing frame, guide rods, a lead screw and the like, the guide rods are connected to the front portion and the rear portion of the fixing frame, and the lead screw is rotationally connected to the middle left portion of the fixing frame. The pressing handle is pressed downwards to drive the connecting rod to rotate, so that the rotating rod rotates, the pressing rod presses the reinforcing plate, the pressing handle is in contact with the inner side of the connecting seat, the pressing rod is prevented from being loosened easily through friction force generated by contact between the pressing handle and the connecting seat, and then the reinforcing plate is welded to the automobile doorsill. And the effects that the reinforcing plate can be fixed, and accidental injuries caused by pressing the reinforcing plate by the hand during welding are avoided are achieved.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing, and in particular to an auxiliary device for welding automobile door sills. Background Technology

[0002] In the automotive manufacturing industry, the car door sill, as an important component of the vehicle body structure, not only plays a crucial role in supporting the vehicle body and protecting the safety of the occupants, but its manufacturing quality also directly affects the overall performance and appearance of the vehicle. As an important component to enhance the structural strength of the car door sill, the reinforcing plate usually needs to be welded and fixed to the door sill body to ensure that it can withstand various complex external forces during vehicle operation.

[0003] Currently, in the welding of automotive door sill reinforcement plates, the reinforcement plates are usually fixed by pressing with the hands before welding. However, the operator's hands are close to the welding area, and if there is an operational error or welding equipment failure, the operator's hands are very likely to be burned or scalded.

[0004] Therefore, it is necessary to design an auxiliary device for welding car door sills that can fix the reinforcing plate and prevent accidental injury from manual hand pressing on the reinforcing plate during welding. Utility Model Content

[0005] To overcome the disadvantage that during welding operations, the operator's hands are close to the welding area, which can easily lead to burns or scalds if there is an operational error or welding equipment failure, this utility model provides an auxiliary device for welding car door sills that can fix the reinforcing plate and prevent accidental injury from manual hands pressing on the reinforcing plate during welding.

[0006] The technical solution is as follows: an auxiliary device for welding car door sills, comprising a fixed frame, guide rods, lead screws, clamping plates, an adjustment assembly, and a clamping assembly. Guide rods are connected to both the front and rear parts of the fixed frame. A lead screw is rotatably connected to the middle left part of the fixed frame. A clamping plate is threaded onto the lead screw. The guide rods are slidably connected to the clamping plates. An adjustment assembly capable of adjusting the fixed height is provided on the left side of the fixed frame. Clamping assemblies capable of fixing both sides of the reinforcing plate are provided on both the fixed frame and the adjustment assembly.

[0007] As a further preferred option, a limiting block is provided on the lower side of each guide rod.

[0008] As a further preferred option, a knob is also included, with a knob connected to the lower side of the lead screw.

[0009] As a further preferred option, the knob is equipped with multiple gripping grooves.

[0010] As a further preferred embodiment, the adjustment assembly includes an adjustment plate, a screw, and a first nut. The adjustment plate is slidably connected to the left side of the fixed frame, and the screw is snapped onto the upper part of the adjustment plate. The screw is snapped into the fixed frame, and the first nut is threaded onto the screw, with the first nut in contact with the adjustment plate.

[0011] As a further preferred embodiment, a clamping assembly is also included. The clamping assembly includes a connecting seat, a rotating rod, a pressing handle, a connecting rod, a clamping rod, and a second nut. Two connecting seats are connected to the upper front of the fixed frame, and two connecting seats are connected to the left side of the adjusting plate. A rotating rod is rotatably connected between two adjacent connecting seats. A pressing handle is rotatably connected to the rear of each rotating rod. A connecting rod is rotatably connected between the rear of two adjacent connecting seats. The connecting rod is rotatably connected to the adjacent pressing handle. A clamping rod is slidably engaged with the front of each rotating rod through a guide groove. A second nut is threadedly connected to both the upper and lower parts of the clamping rod. The second nut is in contact with the adjacent rotating rod.

[0012] This utility model has the following advantages: 1. By pressing the handle downwards, the connecting rod rotates, causing the rotating rod to rotate and press the clamping rod against the reinforcing plate, so that the handle contacts the inner side of the connecting seat. The friction between the handle and the connecting seat prevents the clamping rod from easily loosening. Then, the reinforcing plate is welded to the car door sill, which achieves the effect of fixing the reinforcing plate and avoiding accidental injury to the manual hand pressing the reinforcing plate during welding.

[0013] 2. This utility model adjusts the position of the fixing frame by moving it up and down, inserts the screw between the fixing frame and the adjusting plate, and then rotates and tightens the first nut so that the first nut contacts the adjusting plate for fixation. Then, the second nut is rotated and loosened, and the clamping rod is moved and adjusted along the guide groove. This achieves the effect of adjusting the clamping rod, which facilitates fixing the reinforcing plate at different positions according to welding requirements. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the lead screw and knob components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the rotating rod and pressing handle of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the clamping rod and the second nut of this utility model.

[0018] Wherein: 1-fixed frame, 2-guide rod, 3-lead screw, 31-knob, 4-clamping plate, 5-adjusting plate, 6-screw, 7-first nut, 8-connecting seat, 9-rotating rod, 10-press handle, 11-connecting rod, 12-pressing rod, 13-second nut, 14-guide groove. Detailed Implementation

[0019] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0020] A car door sill welding auxiliary device, such as Figure 1 and Figure 2 As shown, it includes a fixed frame 1, guide rods 2, lead screws 3, knobs 31, clamping plates 4, adjustment components, and clamping components. Guide rods 2 are connected to both the front and rear parts of the fixed frame 1. Each guide rod 2 has a limiting block on its lower side for easy positioning. The lead screw 3 is rotatably connected to the middle left of the fixed frame 1. The knob 31 is connected to the lower side of the lead screw 3. The knob 31 has four gripping grooves for easy gripping. The clamping plate 4 is threaded onto the lead screw 3. The guide rods 2 are slidably connected to the clamping plate 4. An adjustment component is provided on the left side of the fixed frame 1. Both the fixed frame 1 and the adjustment component are equipped with clamping components.

[0021] like Figure 3 As shown, the adjustment assembly includes an adjustment plate 5, a screw 6, and a first nut 7. The adjustment plate 5 is slidably connected to the left side of the fixed frame 1. The screw 6 is snapped onto the upper part of the adjustment plate 5. The screw 6 is snapped onto the fixed frame 1. The first nut 7 is threaded onto the screw 6 and contacts the adjustment plate 5.

[0022] like Figure 3 and Figure 4 As shown, it also includes a clamping assembly, which includes a connecting seat 8, a rotating rod 9, a pressing handle 10, a connecting rod 11, a clamping rod 12, and a second nut 13. The upper front part of the fixed frame 1 is connected to two connecting seats 8 on the left and right sides. The left side of the adjusting plate 5 is also connected to two connecting seats 8 on the upper and lower sides. A rotating rod 9 is rotatably connected between two adjacent connecting seats 8. A pressing handle 10 is rotatably connected to the rear of each rotating rod 9. A connecting rod 11 is rotatably connected between the rear of two adjacent connecting seats 8. The connecting rod 11 is rotatably connected to the adjacent pressing handle 10. The front part of each rotating rod 9 is slidably engaged with a clamping rod 12 through a guide groove 14. The upper and lower parts of the clamping rod 12 are threadedly connected to the second nut 13. The second nut 13 is in contact with the adjacent rotating rod 9.

[0023] When using this device, first, place the fixing frame 1 onto the car door sill, then hold the knob 31 and rotate it to rotate the lead screw 3. This causes the clamping plate 4 to move upward along the guide rod 2 under the action of the thread, so that the clamping plate 4 contacts the car door sill, fixing the device onto the car door sill. Then, place the reinforcing plate on the car door sill, and press down the pressing handle 10, causing the connecting rod 11 to rotate between the connecting seat 8 and the pressing handle 10. This causes the rotating rod 9 to rotate between the connecting seats 8, causing the clamping rod 12 to press the reinforcing plate tightly, so that the pressing handle 10 contacts the inner side of the connecting seat 8. The friction between the pressing handle 10 and the connecting seat 8 prevents the clamping rod 12 from easily loosening. Finally, weld the reinforcing plate... It is attached to the car door sill to fix the reinforcing plate, thus avoiding accidental injury from manual pressing of the reinforcing plate during welding. When it is necessary to fix the reinforcing plate at different positions, the first nut 7 can be loosened by rotating it, and then the screw 6 can be pulled out. Then the position of the fixing frame 1 can be adjusted by moving it up and down. Then the screw 6 can be inserted between the fixing frame 1 and the adjusting plate 5. Then the first nut 7 can be tightened by rotating it so that the first nut 7 contacts the adjusting plate 5 for fixation. Next, the second nut 13 can be loosened by rotating it, and then the clamping rod 12 can be moved and adjusted along the guide groove 14. After adjustment, the second nut 13 can be tightened by rotating it, so that the clamping rod 12 can be adjusted to facilitate fixing the reinforcing plate at different positions according to welding requirements.

[0024] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of this invention. Therefore, the scope of this invention should be limited only by the appended claims.

Claims

1. An auxiliary device for welding automobile door sills, characterized in that: It includes a fixed frame (1), guide rods (2), lead screws (3), clamps (4), adjustment components and clamping components. The fixed frame (1) is connected to the front and rear parts with guide rods (2). The fixed frame (1) is rotatably connected to the left middle part with lead screws (3). The lead screws (3) are threadedly connected to the clamps (4). The guide rods (2) are slidably connected to the clamps (4). The left side of the fixed frame (1) is provided with an adjustment component that can adjust the fixed height. The fixed frame (1) and the adjustment component are both provided with clamping components that can fix the two sides of the reinforcing plate.

2. The automotive door sill welding auxiliary device as described in claim 1, characterized in that: Limiting blocks are provided on the lower side of the guide rod (2).

3. The automotive door sill welding auxiliary device as described in claim 1, characterized in that: It also includes a knob (31), and the knob (31) is connected to the lower side of the lead screw (3).

4. The automotive door sill welding auxiliary device as described in claim 3, characterized in that: The knob (31) has multiple gripping grooves.

5. The automotive door sill welding auxiliary device as described in claim 1, characterized in that: The adjustment assembly includes an adjustment plate (5), a screw (6) and a first nut (7). The adjustment plate (5) is slidably connected to the left side of the fixed frame (1). The screw (6) is snapped onto the upper part of the adjustment plate (5). The screw (6) is snapped onto the fixed frame (1). The first nut (7) is threaded onto the screw (6). The first nut (7) is in contact with the adjustment plate (5).

6. The automotive door sill welding auxiliary device as described in claim 1, characterized in that: It also includes a clamping assembly, which includes a connecting seat (8), a rotating rod (9), a pressing handle (10), a connecting rod (11), a clamping rod (12), and a second nut (13). The upper front of the fixed frame (1) is connected to two connecting seats (8) on the left and right sides. The left side of the adjusting plate (5) is also connected to two connecting seats (8) on the upper and lower sides. The two adjacent connecting seats (8) are rotatably connected to a rotating rod (9). The rear of the rotating rod (9) is rotatably connected to a pressing handle (10). The rear of the two adjacent connecting seats (8) is rotatably connected to a connecting rod (11). The connecting rod (11) is rotatably connected to the adjacent pressing handle (10). The front of the rotating rod (9) is slidably engaged with a clamping rod (12) through a guide groove (14). The upper and lower parts of the clamping rod (12) are threadedly connected to a second nut (13). The second nut (13) is in contact with the adjacent rotating rod (9).

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