Tailor-welding device for front frame of small-sized loader

Abstract

The utility model belongs to the technical field of frame welding, and particularly relates to a small loader front frame tailor-welding device which comprises a base. The top of the base is fixedly connected with a front middle beam positioning frame; a bridge mounting seat positioning frame is fixedly connected to the top of the base; the axle mounting seat positioning frame is arranged on one side far away from the front middle beam positioning frame; the top of the base is fixedly connected with a fixing frame. The side wall of the fixing frame is rotationally connected with a pair of rotating arms. The pair of rotating arms are symmetrically arranged; by means of the structure, the base is arranged to be connected with the front middle beam positioning frame and the axle installation seat positioning frame and matched with the supporting assembly, the frame body can be supported and limited, meanwhile, the front middle beam positioning pin shaft and the second fixing ring are used in a matched mode, a part needing to be welded can be fixed to the position needing to be welded, convenience and modularization in the welding process are improved, and the welding efficiency is improved. The situation that the position of a frame body needs to be adjusted or parts need to be clamped due to the fact that the parts are welded respectively in the welding process, and operation is tedious is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of frame welding, and specifically relates to a front frame splicing and welding device for a small loader. Background Technique

[0002] The front frame of a loader is an important part of the loader, with strong rigidity and strength. It not only bears the force of the working device but also connects the front and rear frames to ensure the integrity of the overall machine structure and operating stability.

[0003] In the production and processing of the existing loader front frames, components such as middle beam plates and wing box plates are usually welded to the main body of the front frame by means of splicing welding. During long-term use and observation, it is found that when welding each component of the existing front frame, each component is usually welded to the frame main body separately. There are problems that there are many components to be welded, resulting in continuous clamping of parts, and the operation process is relatively cumbersome and the welding process is not modular enough.

[0004] Therefore, the utility model provides a front frame splicing and welding device for a small loader. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve at least one problem proposed in the background technique, a front frame splicing and welding device for a small loader is proposed.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A front frame splicing and welding device for a small loader described in the utility model includes a base; a front middle beam positioning frame is fixedly connected to the top of the base; a bridge mounting seat positioning frame is fixedly connected to the top of the base; the bridge mounting seat positioning frame is arranged on the side away from the front middle beam positioning frame; a fixing frame is fixedly connected to the top of the base; a pair of rotating arms are rotatably connected to the side wall of the fixing frame; the pair of rotating arms are symmetrically arranged; a pair of first fixing rings are fixedly connected to the top of the front middle beam positioning frame; a front middle beam positioning pin is slidably fitted in the first fixing ring; a second fixing ring is fixedly connected to the end of the rotating arm; a steering support positioning pin is slidably fitted in the second fixing ring; a frame body is placed on the top of the base; a support assembly is arranged on the top of the base; through the above structure, the base is set to connect the front middle beam positioning frame and the bridge mounting seat positioning frame, and cooperate with the support assembly to support and limit the frame body. At the same time, by using the front middle beam positioning pin and the second fixing ring in cooperation, the components to be welded can be fixed at the positions where welding is required, so as to improve the convenience and modularity during welding, and reduce the situation that when welding separately, the position of the frame body needs to be adjusted or parts need to be clamped, resulting in a cumbersome operation.

[0007] Preferably, the support assembly includes a support frame; the support frame is fixedly connected to the top of the base; a pair of third fixing rings are fixedly connected to the top of the support frame; a wing box positioning pin shaft is slidably fitted in the third fixing ring; through the above structure, by arranging the support frame to connect the third fixing ring and cooperate with the wing box positioning pin shaft, the vehicle frame body can be supported from the bottom to improve the stability of the position of the vehicle frame body during welding. At the same time, the wing box plate can be fixed to improve the convenience of welding.

[0008] Preferably, a pair of fixing plates are fixedly connected to the side wall of the support frame; the pair of fixing plates are symmetrically arranged; a damping spring is fixedly connected to the top of the fixing plate; a buffer plate is fixedly connected to the top of the damping spring; through the above structure, by arranging the fixing plate to connect the damping spring and the buffer plate, when the vehicle frame body is placed on the support frame, the impact force generated between the vehicle frame body and the support frame can be reduced, playing a role of buffering and vibration reduction to reduce the damage caused by the impact force when placing the vehicle frame body.

[0009] Preferably, a pair of support rods are fixedly connected to the top of the base; a support plate is fixedly connected to the top of the support rod; a pair of positioning grooves are formed in the top of the support plate; the positioning grooves are arranged corresponding to the vehicle frame body; through the above structure, by arranging the support rod to connect the support plate and cooperate with the positioning groove, when the vehicle frame body is placed, the bottom plate in the middle section of the vehicle frame body can be clamped from the bottom to improve the stability of the position of the vehicle frame body. At the same time, the vehicle frame body can be positioned to reduce the situation of the vehicle frame body being skewed.

[0010] Preferably, a pair of storage boxes are fixedly connected to the side wall of the bridge mounting seat positioning frame; a partition plate is fixedly connected to the inner side wall of the storage box; a plurality of material placing holes are formed in the middle of the partition plate; through the above structure, by arranging the storage box to connect the partition plate and the material placing holes, after the welding is completed, the front middle beam positioning pin shaft, the wing box positioning pin shaft and the second fixing ring can be collected to improve the convenience of reusing the front middle beam positioning pin shaft, the wing box positioning pin shaft and the second fixing ring. At the same time, the plurality of material placing holes on the partition plate can separate the front middle beam positioning pin shaft, the wing box positioning pin shaft and the second fixing ring to reduce the wear caused by mutual collision between them.

[0011] Preferably, a pair of collection boxes are fixedly connected to the side wall of the base; the pair of collection boxes are symmetrically arranged; through the above structure, by arranging the collection boxes, it is convenient to collect the welding slag swept off the vehicle frame body to reduce the situation that the welding slag scatters around the base, causing dirt and inconvenience in cleaning.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. A welding and assembling device for the front frame of a small loader according to the present utility model. By arranging a base to connect a front middle beam positioning frame and a bridge mounting seat positioning frame, and cooperating with a supporting component, the frame body can be supported and limited. At the same time, by cooperating with a front middle beam positioning pin shaft and a second fixing ring, the components to be welded can be fixed at the positions to be welded, so as to improve the convenience and modularity during welding, and reduce the situation that when welding separately, it is necessary to adjust the position of the frame body or clamp the components, resulting in cumbersome operations.

[0014] 2. A welding and assembling device for the front frame of a small loader according to the present utility model. By arranging a support frame to connect a third fixing ring and cooperating with a wing box positioning pin shaft, the frame body can be supported from the bottom, so as to improve the stability of the position of the frame body during welding. At the same time, the wing box plate can be fixed, improving the convenience of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below with reference to the accompanying drawings.

[0016] Figure 1 is a perspective view of the present utility model;

[0017] Figure 2 is a front view of the present utility model;

[0018] Figure 3 is a schematic structural view of the cooperation between the support frame and the support plate in the present utility model;

[0019] Figure 4 is a schematic structural view of the storage box in the present utility model;

[0020] Figure 5 is a schematic structural view of the collection box in the present utility model;

[0021] LEGEND DESCRIPTION:

[0022] 1. Base; 11. Front middle beam positioning frame; 12. Bridge mounting seat positioning frame; 13. Fixed frame; 14. Rotating arm; 15. Front middle beam positioning pin shaft; 16. Steering support positioning pin shaft; 17. Frame body; 18. First fixing ring; 19. Second fixing ring; 2. Support frame; 21. Wing box positioning pin shaft; 22. Third fixing ring; 3. Fixed plate; 31. Damping spring; 32. Buffer plate; 4. Support rod; 41. Support plate; 42. Positioning groove; 5. Storage box; 51. Partition plate; 52. Feeding hole; 6. Collection box; 7. Guide plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Specific embodiments are given below.

[0025] As Figures 1 to 3 shown, a welding and assembling device for the front frame of a small loader according to an embodiment of the present utility model includes a base 1; a front middle beam positioning frame 11 is fixedly connected to the top of the base 1; a bridge mounting seat positioning frame 12 is fixedly connected to the top of the base 1; the bridge mounting seat positioning frame 12 is arranged on the side away from the front middle beam positioning frame 11; a fixing frame 13 is fixedly connected to the top of the base 1; a pair of rotating arms 14 are rotatably connected to the side wall of the fixing frame 13; the pair of rotating arms 14 are symmetrically arranged; a pair of first fixing rings 18 are fixedly connected to the top of the front middle beam positioning frame 11; a front middle beam positioning pin 15 is slidably fitted in the first fixing ring 18; a second fixing ring 19 is fixedly connected to the end of the rotating arm 14; a steering support positioning pin 16 is slidably fitted in the second fixing ring 19; a frame body 17 is placed on the top of the base 1; a support assembly is arranged on the top of the base 1; during operation, when welding each component of the frame body 17, after aligning the frame body 17 with the front middle beam positioning frame 11 and the bridge mounting seat positioning frame 12 on the top of the base 1 and the support assembly, the frame body 17 is placed on the front middle beam positioning frame 11 and the bridge mounting seat positioning frame 12, then the holes on the frame body 17 are aligned with the first fixing rings 18, and then the front middle beam plate is aligned with the holes on the frame body 17, and then the front middle beam positioning pin 15 is passed through the holes on the frame body 17 and the hole positions of the front middle beam plate and into the first fixing rings 18 to fix and limit the frame body 17 and the front middle beam plate. Then, after rotating the rotating arm 14 and aligning the steering support with the second fixing ring 19, the steering support positioning pin 16 is passed through the hole of the steering support and into the second fixing ring 19. At this time, the steering support can be fixed on the rotating arm 14. Then, the rotating arm 14 is rotated again to make the steering support contact the inner wall of the frame body 17, and then the welding work of the components can be carried out. Through the above structure, by setting the base 1 to connect the front middle beam positioning frame 11 and the bridge mounting seat positioning frame 12, and cooperating with the support assembly, the frame body 17 can be supported and limited. At the same time, by using the front middle beam positioning pin 15 and the second fixing ring 19 in cooperation, the components to be welded can be fixed at the positions to be welded, so as to improve the convenience and modularity during welding, and reduce the situation that when welding separately, it is necessary to adjust the position of the frame body 17 or clamp the components, resulting in cumbersome operation.

[0026] As Figure 2With Figure 3 As shown, the support assembly includes a support frame 2; the support frame 2 is fixedly connected to the top of the base 1; a pair of third fixing rings 22 are fixedly connected to the top of the support frame 2; a wing box positioning pin 21 is slidably fitted in the third fixing ring 22; during operation, when the vehicle frame body 17 is placed on the front middle beam positioning frame 11 and the bridge mounting seat positioning frame 12, the bottom of the middle section of the vehicle frame body 17 will be placed at the support position of the support frame 2. At this time, the vehicle frame body 17 can be supported and stabilized. At this time, the wing box fixing holes on the vehicle frame body 17 will be aligned with the third fixing rings 22. Then, after aligning the wing box plate with the holes on the vehicle frame body 17, the wing box positioning pin 21 is passed through the wing box plate, the third fixing rings 22 and the holes on the vehicle frame body 17. At this time, the position of the wing box plate to be welded can be fixed. Through the above structure, by setting the support frame 2 to connect the third fixing rings 22 and cooperate with the wing box positioning pin 21, the vehicle frame body 17 can be supported from the bottom to improve the stability of the position of the vehicle frame body 17 during welding. At the same time, the wing box plate can be fixed to improve the convenience of welding.

[0027] As Figure 3 shown, a pair of fixing plates 3 are fixedly connected to the side wall of the support frame 2; the pair of fixing plates 3 are symmetrically arranged; a damping spring 31 is fixedly connected to the top of the fixing plate 3; a buffer plate 32 is fixedly connected to the top of the damping spring 31; during operation, when the bottom of the middle section of the vehicle frame body 17 is placed on the support frame 2, the bottom of the vehicle frame body 17 will first contact the buffer plate 32. When the vehicle frame body 17 moves downward, it will press down the buffer plate 32 to cause the damping spring 31 to contract. At this time, the speed of the vehicle frame body 17 falling onto the support frame 2 can be reduced, and the impact force generated between the vehicle frame body 17 and the support frame 2 can be reduced. Through the above structure, by setting the fixing plate 3 to connect the damping spring 31 and the buffer plate 32, when the vehicle frame body 17 is placed on the support frame 2, the impact force generated between the vehicle frame body 17 and the support frame 2 can be reduced, playing a role in buffering and vibration reduction to reduce the damage caused by the impact force when placing the vehicle frame body 17.

[0028] As Figure 3As shown, a pair of support rods 4 are fixedly connected to the top of the base 1; a support plate 41 is fixedly connected to the top of the support rods 4; a pair of positioning grooves 42 are opened on the top of the support plate 41; the positioning grooves 42 are arranged corresponding to the frame body 17; during operation, when the frame body 17 is placed on the front middle beam positioning frame 11, the bridge mounting seat positioning frame 12 and the support frame 2, the bottom plate of the middle section of the frame body 17 will enter the positioning grooves 42, at this time, the positioning grooves 42 can clamp the bottom plate of the frame body 17, and the frame body 17 can be limited and stabilized. Through the above structure, the support rods 4 are connected to the support plates 41 to cooperate with the positioning grooves 42, so that when the frame body 17 is placed, the bottom plate of the middle section of the frame body 17 can be clamped from the bottom to improve the stability of the position of the frame body 17, and at the same time, the frame body 17 can be positioned to reduce the skewness of the frame body 17.

[0029] like Figure 1 and Figure 4 As shown, a pair of storage boxes 5 are fixedly connected to the side walls of the bridge mounting seat positioning frame 12; a partition plate 51 is fixedly connected to the inner side wall of the storage box 5; a plurality of discharge holes 52 are opened in the middle of the partition plate 51; during operation, after the welding is completed, the front middle beam positioning pin shaft 15, the wing box positioning pin shaft 21 and the second fixing ring 19 need to be taken out first, at this time, the fixing of each component and the frame body 17 can be contacted, and then the welded frame body 17 can be lifted and removed, at this time, the removed front middle beam positioning pin shaft 15, the wing box positioning pin shaft 21 and the second fixing ring 19 can be respectively inserted into the discharge hole 52, and the storage box 5 The front center beam locating pin 15 and the wing box locating pin 21 and the second fixing ring 19 can be collected. Through the above structure, a storage box 5 is set to connect the partition plate 51 and the discharge hole 52. The front center beam locating pin 15 and the wing box locating pin 21 and the second fixing ring 19 can be collected after welding to improve the convenience of re-using the front center beam locating pin 15 and the wing box locating pin 21 and the second fixing ring 19. At the same time, the multiple discharge holes 52 on the partition plate 51 can separate the front center beam locating pin 15 and the wing box locating pin 21 and the second fixing ring 19 to reduce the wear caused by collision between them.

[0030] like Figure 1 As shown, a pair of collecting boxes 6 are fixedly connected to the side wall of the base 1; the pair of collecting boxes 6 are symmetrically arranged; during operation, when welding is completed, more welding slag will be generated on the surface of the frame body 17. When the welding slag is cleaned off the frame body 17, part of the welding slag will fall into the collecting box 6 and be collected. Through the above structure, the collection box 6 is arranged to facilitate the collection of the welding slag cleaned off the frame body 17, so as to reduce the situation where the welding slag is scattered around the base 1, causing dirt and inconvenience in cleaning.

[0031] like Figure 5As shown, a material guiding plate 7 is fixedly connected to the top of the base 1; the material guiding plate 7 is in an arc-shaped structure; the material guiding plate 7 is correspondingly arranged with the collection box 6; during operation, when cleaning the welding slag on the vehicle frame body 17, some welding slag will fall onto the surface near the edge of the base 1. At this time, the material guiding plate 7 is located at the edge of the base 1 and is inclined towards the collection box 6, so that the welding slag can fall on the material guiding plate 7 and slide towards the collection box 6. Through the above structure, the material guiding plate 7 is provided to guide the dropped welding slag to the collection box 6 for collection, so as to reduce the accumulation of welding slag at the edge position of the base 1.

[0032] Working principle: When welding each component of the vehicle frame body 17, after aligning the vehicle frame body 17 with the front middle beam positioning frame 11 and the bridge mounting seat positioning frame 12 at the top of the base 1 with the support assembly, place the vehicle frame body 17 on the front middle beam positioning frame 11 and the bridge mounting seat positioning frame 12. Then align the holes on the vehicle frame body 17 with the first fixing ring 18, and then align the front middle beam plate with the holes on the vehicle frame body 17. Then pass the front middle beam positioning pin shaft 15 through the holes on the vehicle frame body 17 into the hole positions of the front middle beam plate and inside the first fixing ring 18 to fix and limit the vehicle frame body 17 and the front middle beam plate. Then rotate the swing arm 14 and align the steering support with the second fixing ring 19, and then pass the steering support positioning pin shaft 16 through the hole of the steering support into the second fixing ring 19. At this time, the steering support can be fixed on the swing arm 14. Then rotate the swing arm 14 again to make the steering support contact the inner wall of the vehicle frame body 17, and then the welding work of the components can be carried out. When placing the vehicle frame body 17 on the front middle beam positioning frame 11 and the bridge mounting seat positioning frame 12, the bottom of the middle section of the vehicle frame body 17 will be placed at the support position of the support frame 2. At this time, the vehicle frame body 17 can be supported and stabilized. At this time, the wing box fixing holes on the vehicle frame body 17 will be aligned with the third fixing ring 22. Then align the wing box plate with the holes on the vehicle frame body 17, and then pass the wing box positioning pin shaft 21 through the wing box plate, the third fixing ring 22 and the holes on the vehicle frame body 17. At this time, the position of the wing box plate to be welded can be fixed. When the bottom of the middle section of the vehicle frame body 17 is placed on the support frame 2, the bottom of the vehicle frame body 17 will first contact the buffer plate 32. When the vehicle frame body 17 moves downward, it will press down the buffer plate 32 to cause the damping spring 31 to contract. At this time, the speed of the vehicle frame body 17 falling onto the support frame 2 can be reduced, and the impact force generated between the vehicle frame body 17 and the support frame 2 can be reduced. When the vehicle frame body 17 is placed on the front middle beam positioning frame 11, the bridge mounting seat positioning frame 12 and the support frame 2, the bottom plate of the middle section of the vehicle frame body 17 will enter the positioning groove 42. At this time, the positioning groove 42 can clamp the bottom plate of the vehicle frame body 17, and the vehicle frame body 17 can be limited and stabilized. After welding, the front middle beam positioning pin shaft 15, the wing box positioning pin shaft 21 and the second fixing ring 19 need to be taken out first. At this time, the fixation of each component and the vehicle frame body 17 can be released. Then lift and move the welded vehicle frame body 17 away. At this time, insert the removed front middle beam positioning pin shaft 15, the wing box positioning pin shaft 21 and the second fixing ring 19 into the material discharge hole 52 respectively. At this time, the storage box 5 can collect the front middle beam positioning pin shaft 15, the wing box positioning pin shaft 21 and the second fixing ring 19. After welding, a lot of welding slag will be generated on the surface of the vehicle frame body 17. When the welding slag is swept and dropped from the vehicle frame body 17, part of the welding slag will drop into the collection box 6 and be collected. When sweeping the welding slag on the vehicle frame body 17, part of the welding slag will drop onto the surface near the edge of the base 1. At this time, the guide plate 7 is located at the edge of the base 1 and is inclined towards the collection box 6, so that the welding slag can fall on the guide plate 7 and slide towards the collection box 6.

[0033] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will also have various changes and improvements, and these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A welding and assembling device for the front frame of a small loader, comprising a base (1); characterized in that: A front middle beam positioning frame (11) is fixedly connected to the top of the base (1); a bridge mounting seat positioning frame (12) is fixedly connected to the top of the base (1); the bridge mounting seat positioning frame (12) is arranged on the side away from the front middle beam positioning frame (11); a fixing frame (13) is fixedly connected to the top of the base (1); a pair of swing arms (14) are rotatably connected to the side wall of the fixing frame (13); the pair of swing arms (14) are symmetrically arranged; a pair of first fixing rings (18) are fixedly connected to the top of the front middle beam positioning frame (11); a front middle beam positioning pin shaft (15) is slidably fitted in the first fixing ring (18); a second fixing ring (19) is fixedly connected to the end of the swing arm (14); a steering support positioning pin shaft (16) is slidably fitted in the second fixing ring (19); a vehicle frame body (17) is placed on the top of the base (1); a support assembly is arranged on the top of the base (1).

2. The front frame welding device of a small loader according to claim 1, characterized in that: The support assembly includes a support frame (2); the support frame (2) is fixedly connected to the top of the base (1); a pair of third fixing rings (22) are fixedly connected to the top of the support frame (2); a wing box positioning pin shaft (21) is slidably fitted in the third fixing ring (22).

3. The front frame welding device for a small loader according to claim 2, characterized in that: A pair of fixing plates (3) are fixedly connected to the side wall of the support frame (2); the pair of fixing plates (3) are symmetrically arranged; a damping spring (31) is fixedly connected to the top of the fixing plate (3); a buffer plate (32) is fixedly connected to the top of the damping spring (31).

4. A front frame welding and assembling device for a small loader according to claim 1, characterized in that: A pair of support rods (4) are fixedly connected to the top of the base (1); a support plate (41) is fixedly connected to the top of the support rod (4); a pair of positioning grooves (42) are formed in the top of the support plate (41); the positioning grooves (42) correspond to the vehicle frame body (17).

5. The front frame welding and assembling device of a small loader according to claim 1, characterized in that: A pair of storage boxes (5) are fixedly connected to the side wall of the bridge mounting seat positioning frame (12); a partition plate (51) is fixedly connected to the inner side wall of the storage box (5); a plurality of material discharging holes (52) are formed in the middle of the partition plate (51).

6. The front frame welding device of a small loader according to claim 1, characterized in that: A pair of collection boxes (6) are fixedly connected to the side wall of the base (1); the pair of collection boxes (6) are symmetrically arranged.

7. A front frame welding device for a small loader according to claim 1, characterized in that: A material guiding plate (7) is fixedly connected to the top of the base (1); the material guiding plate (7) is of an arc-shaped structure; the material guiding plate (7) corresponds to the collection box (6).

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