Angle-adjustable frame lifting lug welding tool

Abstract

The utility model relates to the field of frame welding, and particularly discloses an angle-adjustable frame lifting lug welding tool. Comprising a supporting unit, the supporting unit comprises a supporting base and a plurality of supporting blocks, a sliding rail is arranged below the supporting base, and the supporting base is in sliding fit with the sliding rail; the supporting blocks are sequentially arranged in the vertical direction, and the lowermost supporting block is detachably connected with the supporting base. According to the vehicle frame lifting lug welding tool, the position of the supporting structure can be adjusted in the length direction of the vehicle frame, and therefore vehicle frames with different lengths can be supported.

Description

Technical Field

[0001] The utility model relates to the field of frame welding, in particular to a frame hanger welding tooling. Background Technique

[0002] The frame is the base of the whole vehicle, which is used to support and connect various parts of the vehicle and bear various loads from inside and outside the vehicle. When assembling, hangers need to be welded on the frame. During welding, the frame needs to be fixed first, and then the hanger is placed at the welding position to be welded. And during welding, the hanger needs to be rotated to the designed angle and positioned before welding can be carried out.

[0003] For some vehicle frames such as buses, the frames are relatively large. In order to reduce the welding difficulty and avoid moving the welding process over a large distance, our company has designed a tooling that can move the frame in the length, width and height directions of the frame so that the frame can be aligned with different welding stations. However, it is found in actual use that because there are multiple hangers, it takes a certain amount of time to complete the welding. After moving the frame, the weight of the frame is mainly borne by the positioning structure of the above tooling. Since the frame is heavy, relying solely on the positioning rod of the above tooling to support the frame for a long time requires high strength for the cylinder and positioning rod of the above tooling. If materials with slightly lower strength are used, the structures such as the positioning rod of the above tooling will be deformed. And using lighter and higher-strength materials will also increase the cost of the above tooling. Therefore, a welding tooling that can support the frame is still needed to avoid the positioning structure of the above tooling from supporting the frame for a long time.

[0004] At present, as shown in the support base for frame welding with the application number CN202123377690.7, an operating table is provided, and load-bearing blocks are arranged on both sides of the operating table. Second hydraulic cylinders are provided on both load-bearing blocks. Load-bearing columns are provided at the tops of the two second hydraulic cylinders. The two load-bearing columns are connected by an installation beam. A slide rail is provided at the bottom of the installation beam. Multiple sliders are provided at the bottom of the slide rail. Fixed chains are provided at the bottoms of the multiple sliders. A second motor is provided at the bottom of the operating table. A tray is provided on the operating table. An electromagnetic iron plate is provided inside the tray. The tray is connected to the output end of the second motor.

[0005] Although the above patent supports the frame by driving the operating table to move vertically through the second hydraulic cylinder, the above support base cannot adjust its position along the length direction of the frame. There are differences in the lengths of frames of different specifications. Therefore, when welding a frame with a smaller length, the frame cannot contact the operating table, resulting in the problem that the frame cannot be supported by the operating table. Summary of the Utility Model

[0006] The utility model aims to provide a frame hanger welding tooling that can adjust the position of the support structure along the length direction of the frame, so as to support frames of different lengths.

[0007] To achieve the above object, the utility model adopts the following technical solution: An adjustable-angle frame hanger welding tooling, including a support unit, the support unit includes a support base and a number of support blocks, a slide rail is provided below the support base, and the support base is slidably matched with the slide rail; a number of support blocks are arranged in sequence vertically, and the lowermost support block is detachably connected to the support base.

[0008] The beneficial effects of this solution are:

[0009] 1. The slide rail in this solution is arranged along the length direction of the frame. During welding, the support blocks can support the frame. Secondly, according to the length of the frame and the position to be supported, the support base can also be slid along the slide rail to change the position of the support blocks. Therefore, even if the length of the frame is small, the support blocks can be moved to the position of the frame to ensure that the frame can be supported.

[0010] 2. There are also certain differences in the heights of the frames of different automobiles. In this solution, the height of the uppermost support block can be changed by the number of support blocks installed on the support base to ensure that higher frames can be supported.

[0011] Furthermore, the support base is L-shaped, and a number of support blocks are all abutted against the vertical part of the support base.

[0012] The beneficial effects of this solution are: The vertical part of the support seat can limit the support blocks to prevent the support blocks from shifting to the side away from the frame. And when installing the support blocks, just abut the support blocks against the vertical part to quickly determine the installation position of the support blocks, which is more convenient for installation.

[0013] Furthermore, a chute is provided vertically on the vertical part of the support base, a slider is fixed on the side wall of the support block facing the vertical part of the support base, and the slider is slidably matched with the chute.

[0014] The beneficial effects of this solution are: After the slider is slid into the chute, the support base can also limit the support blocks along the length direction of the frame to further prevent the support blocks from shifting.

[0015] Furthermore, the cross sections of the chute and the slider are both dovetail-shaped.

[0016] The beneficial effects of this solution are: The slider in this solution will not come out of the chute, and can also limit the support blocks in the width direction of the frame.

[0017] Furthermore, adjacent support blocks are detachably connected.

[0018] The beneficial effects of this solution are as follows: There is no relative movement between adjacent support blocks in this solution. Since the lowermost support block is connected to the support base, there is also no relative movement between the upper support block and the support base in this solution, further preventing the support block from shifting during the process of supporting the vehicle frame.

[0019] Furthermore, a limiting step in an L shape is formed between the side wall of the vertical part of the support block away from the support base and the lower support block.

[0020] The beneficial effects of this solution are as follows: A number of support blocks in this solution are distributed in a stepped manner, and the distances between different support blocks and the vehicle frame are different: the upper support block can accommodate a wider vehicle frame, the lower support block can support a vehicle frame with a smaller width, and during support, the vertical side wall of the limiting step can limit the vehicle frame from the side, preventing the vehicle frame from shifting horizontally, thereby improving the welding accuracy.

[0021] Furthermore, a limiting unit is also provided. The limiting unit includes a limiting base, a mounting seat, a positioning disk, and a positioning rod. The limiting base is in sliding fit with the slide rail, the mounting seat is detachably connected to the limiting base, the positioning disk is detachably connected to the mounting seat, and the positioning rod passes through the positioning disk and can be adjusted axially.

[0022] The beneficial effects of this solution are as follows: A lifting hole is provided on the lifting lug. When the welding tooling in this solution is used, before welding, first select the positioning disk with the positioning rod facing the lifting hole according to the position of the lifting hole on the lifting lug. During welding, pass the positioning rod through the lifting hole on the lifting lug to position the lifting lug, so that the lifting lug maintains the designed angle, avoiding manual positioning of the lifting lug and being scalded during welding.

[0023] Furthermore, the positioning rod includes a positioning sleeve and a positioning core rod. The positioning core rod passes through the positioning disk, and the positioning sleeve is sleeved on one end of the positioning core rod away from the positioning disk and is in threaded fit with the positioning core rod.

[0024] The beneficial effects of this solution are as follows: When the size of the lifting hole on the lifting lug is large or small, the lifting lug can be better limited by replacing positioning sleeves with different outer diameters. Secondly, when the widths of the vehicle frames are different, there are also differences in the distances between the lifting lugs and the positioning disks. In this solution, by rotating the positioning sleeve, the position of the positioning sleeve can be changed axially, thereby increasing the length of the positioning rod. Even if the width of the vehicle frame is small, it is ensured that the positioning sleeve can pass through the lifting hole on the lifting lug.

[0025] Furthermore, the support unit further includes a lateral pushing member. A vertical push plate is provided on the support base. The lateral pushing member is connected to the vertical push plate and is used to push the vertical push plate to slide, and a number of support blocks are all connected to the vertical push plate.

[0026] The beneficial effects of this solution are as follows: When the vehicle frame is adjusted in the width direction, in this solution, the vertical push plate can be driven by the lateral pushing member to move, so as to adjust a plurality of support blocks in the width direction of the vehicle frame, ensuring that the support blocks can face the vehicle frame and support the vehicle frame. Compared with replacing support blocks of different widths, the adjustment in this solution is faster, and the combination of laterally adjusting the support blocks and replacing support blocks of different widths can further increase the width range of the vehicle frames that can be supported. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is the front view of Embodiment 1 of the present utility model;

[0028] Figure 2 is Figure 1 the three-dimensional view of a support unit in

[0029] Figure 3 It is the three-dimensional view of Embodiment 2 of the present utility model;

[0030] Figure 4 It is the three-dimensional view of Embodiment 3 of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following is a further detailed description through specific embodiments:

[0032] The reference numerals in the attached drawings of the specification include: slide rail 1, support base 2, locking rod 21, vertical push plate 3, sliding groove 31, support block 4, lifting lug 5, positioning rod 6, positioning core rod 61, positioning sleeve 62, limit base 7, mounting seat 8, positioning disk 9.

[0033] Embodiment 1

[0034] Embodiment 1 is basically as shown in Figure 1 and Figure 2 shown. An adjustable-angle welding tool for vehicle frame lifting lugs is provided with a vehicle frame, and two support units are provided on the vehicle frame. The two support units are respectively located on the left and right sides of the vehicle frame and are symmetrically arranged vertically. Taking the support unit on the right side as an example, the support unit includes a support base 2 and a plurality of support blocks 4. A slide rail 1 is provided below the support base 2, and the slide rail 1 is installed on the vehicle frame by bolts. The slide rail 1 in this embodiment adopts an existing linear guide rail. Guide rail sliders are installed below the support base 2, and the guide rail sliders are connected to the slide rail 1. The support base 2 is slidably connected to the slide rail 1 through the cooperation of the guide rail slider and the linear guide rail. A locking rod 21 is threadedly connected to the support base 2 vertically. After the locking rod 21 is rotated downward, it abuts against the vehicle frame to position the support base 2.

[0035] The support base 2 is L-shaped. A number of support blocks 4 are placed on the support base 2 from bottom to top, and the right side wall of the support block 4 abuts against the vertical side wall of the support base 2. The lowermost support block 4 abuts against the support base 2 through a bolt. From bottom to top, the width of the support block 4 gradually decreases. The upper and lower adjacent support blocks 4 form an L-shaped limiting step. In this embodiment, a chute 31 is provided vertically on the vertical side wall of the support base 2. A slider is integrally formed on the right side wall of the support block 4. The slider is located in the chute 31 and is in small clearance fit with the chute 31, so that the slider can slide along the chute 31. In this embodiment, both the chute 31 and the slider are dovetail-shaped to prevent the slider from slipping out to the left. In actual implementation, the slider and the chute 31 may not be provided, and the upper and lower adjacent support blocks 4 can be connected by bolts, which can also prevent the support block 4 from shifting during use.

[0036] The specific implementation process is as follows:

[0037] Before welding, first adjust the position of the support base 2 according to the length of the vehicle frame to ensure that the support block 4 can be located directly below the vehicle frame. During welding, first move the vehicle frame from top to bottom. When the vehicle frame falls on the support block 4, the support block 4 supports the vehicle frame. In actual implementation, by selecting the width of the support block 4 equal to the height of the vehicle frame, the left side wall of the support block 4 abuts against the vehicle frame, and the vehicle frame is limited by the limiting step opposite to the vehicle frame, preventing the vehicle frame from shifting in the width direction while supporting the vehicle frame. After welding is completed, move the vehicle frame upward.

[0038] When welding a vehicle frame with a small height and a small width, first determine the support block 4 for supporting the vehicle frame, and then remove the lower support block 4 to reduce the height of the support block 4 for supporting the vehicle frame. Moreover, the more the number of the removed lower support blocks 4, the smaller the height of the support block 4 for supporting the vehicle frame. When removing the support block 4, slide the support block 4 upward so that the slider slides out of the chute 31 upward, and the operation is simple.

[0039] Embodiment 2

[0040] On the basis of Embodiment 1, as Figure 3 shown, in this embodiment, two limiting units are also provided. The two limiting units are also respectively located on the left and right sides of the vehicle frame and are symmetrically arranged. Taking the limiting unit on the right side as an example, the limiting unit includes a limiting base 7, a mounting seat 8, a positioning disk 9 and a positioning rod 6. The limiting base 7 is in sliding fit with the slide rail 1, and the limiting base 7 is also slidably connected to the slide rail 1 through the cooperation of a guide rail slider and a linear guide rail, which will not be elaborated in this embodiment.

[0041] The mounting base 8 is mounted on the top of the limit base 7 by bolts, and the positioning disc 9 is mounted on the left side wall of the mounting base 8 by bolts. An eccentric positioning hole is provided on the positioning disc 9. Specifically, the position of the positioning hole in this embodiment is determined according to the position of the lifting hole on the lifting lug 5: when the rod-shaped structure on the vehicle frame penetrates through one lifting hole on the lifting lug 5, with the lifting lug 5 maintaining the designed angle, the positioning hole is aligned with the other lifting hole on the lifting lug 5.

[0042] The positioning rod 6 includes a positioning core rod 61 and a positioning sleeve 62. The right end of the positioning core rod 61 penetrates through the positioning hole and has a small clearance fit with the positioning hole, ensuring that the positioning core rod 61 can slide axially relative to the positioning disc 9. The positioning sleeve 62 is sleeved on the left end of the positioning core rod 61 and is in threaded fit with the positioning core rod 61. When positioning the lifting lug 5, the positioning sleeve 62 penetrates through the other lifting hole of the lifting lug 5. At this time, the rod-shaped structure on the vehicle frame and the positioning sleeve 62 respectively penetrate through the two lifting holes on the lifting lug 5, positioning the lifting lug 5 from two points, so that the lifting lug 5 maintains the designed angle. Therefore, when welding, there is no need to hold the lifting lug 5 by hand for positioning, thus avoiding workers from being scalded.

[0043] When the width of the vehicle frame is small, the distance between the lifting lug 5 and the positioning disc 9 increases. Rotating the positioning sleeve 62 relative to the positioning core rod 61 to the left can increase the length of the positioning rod 6 to ensure that the positioning sleeve 62 can position the lifting lug 5. When the lifting hole on the lifting lug 5 is large, remove the positioning sleeve 62 and select a positioning sleeve 62 with a larger outer diameter; similarly, when the lifting hole on the lifting lug 5 is small, replace the positioning sleeve 62 on the positioning core rod 61 with a positioning sleeve 62 with a smaller outer diameter. In addition, other operations in this embodiment are the same as those in Embodiment 1 and will not be elaborated here.

[0044] Embodiment 3

[0045] As Figure 4 shown, on the basis of Embodiment 1, the limit unit in this embodiment further includes a lateral pushing member. A vertical pushing plate 3 is provided on the support base 2. Different from Embodiment 1 and Embodiment 2, the sliding groove 31 in this embodiment is provided on the vertical pushing plate 3, and several support blocks 4 are all connected to the vertical pushing plate 3. The vertical pushing plate 3 is attached to the vertical side wall of the support base 2. The lateral pushing member uses a cylinder. The lateral pushing member is mounted on the vertical side wall of the support base 2 by bolts, and after the push rod of the lateral pushing member penetrates through the vertical side wall of the support base 2 and has a clearance fit with the vertical side wall, it is connected to the vertical pushing plate 3 through a flange.

[0046] When supporting the vehicle frame, the vertical pushing plate 3 is moved towards the side close to the vehicle frame through the lateral pushing member until the vertical side wall of the limit step abuts against the vehicle frame, positioning the vehicle frame from the side and further preventing the vehicle frame from shifting during the welding process.

[0047] The above are only embodiments of the present utility model. Specific technical solutions and / or common knowledge such as characteristics that are well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present utility model, several modifications and improvements can be made, which should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicality of the patent. The protection scope required by this application shall be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A welding tool for a frame hanging eye with adjustable angle, comprising a supporting unit, characterized in that: The support unit comprises a support base and a plurality of support blocks. A slide rail is arranged below the support base, and the support base and the slide rail are slidably matched. The plurality of support blocks are arranged in sequence along the vertical direction, and the lowest support block is detachably connected to the support base.

2. The angle-adjustable frame hanging eye welding tool according to claim 1, characterized in that: The support base is L-shaped, and a plurality of support blocks are all against the vertical part of the support base.

3. The angle-adjustable frame hanging eye welding tool according to claim 2, characterized in that: A slide groove is vertically arranged on the vertical part of the support base, and a sliding block is fixed on the side wall of the support block facing the vertical part of the support base, and the sliding block is slidably matched with the slide groove.

4. The angle-adjustable frame hanging eye welding tool according to claim 3, characterized in that: The cross sections of the slideway and the slider are both dovetail shaped.

5. The angle-adjustable frame hanging eye welding tool according to claim 2, characterized in that: The adjacent supporting blocks are detachably connected.

6. The angle-adjustable frame hanging eye welding tool according to claim 2, characterized in that: The side wall of the support block away from the vertical portion of the support base forms an L-shaped limiting step with the support block below.

7. The angle-adjustable frame hanging eye welding tool according to claim 1, characterized in that: A limiting unit is also provided, which includes a limiting base, a mounting seat, a positioning plate and a positioning rod. The limiting base is slidably matched with the slide rail, the mounting seat is detachably connected to the limiting base, the positioning plate is detachably connected to the mounting seat, and the positioning rod passes through the positioning plate and can be adjusted axially.

8. The angle-adjustable frame hanging eye welding tool according to claim 7, characterized in that: The positioning rod comprises a positioning sleeve and a positioning core rod, the positioning core rod passes through the positioning disk, and the positioning sleeve is sleeved on one end of the positioning core rod away from the positioning disk and is threadedly matched with the positioning core rod.

9. The angle-adjustable frame hanging eye welding tool according to claim 6, characterized in that: The support unit also includes a transverse push member. A vertical push plate is provided on the support base. The transverse push member is connected to the vertical push plate and is used to push the vertical push plate to slide. Several support blocks are connected to the vertical push plate.

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