Positioning device for welding processing of connecting rod of loading machine

Abstract

The utility model relates to the technical field of loader connecting rod machining, and discloses a positioning device for loader connecting rod welding machining, which comprises a bottom plate, a second motor is fixedly connected to the right side of a fixing frame, and the output end of the second motor is fixedly connected with a bidirectional lead screw. The left side and the right side of the outer ring of the bidirectional lead screw penetrate through and are in threaded connection with a nut pair, the top of the nut pair is fixedly connected with a connecting block, the top of the connecting block is fixedly connected with a fixing base, the front side and the rear side of the inner wall of the fixing base penetrate through and are in sliding connection with sliding blocks, and the tops of the sliding blocks are fixedly connected with clamping plates. A bidirectional telescopic rod is fixedly connected to the bottom between the front side and the rear side of the clamping plate. According to the device, the two-way telescopic rod drives the clamping plates to get close to each other to position and fix the loader connecting rods, then the second motor drives the two-way lead screw to rotate, the nut pair drives the two loader connecting rods to get close to each other, and therefore the two loader connecting rods are in butt joint.

Description

Technical Field

[0001] The utility model relates to the technical field of loader connecting rod processing, in particular to a positioning device for loader connecting rod welding processing. Background Technique

[0002] The loader connecting rod is an important part of the loader. It is mainly used to connect the working device and the chassis of the loader, playing the role of transmitting power and stabilizing the structure. The connecting rod is usually made of high-strength steel to withstand the pressure and impact in the heavy-duty working environment.

[0003] The positioning device for loader connecting rod welding processing is a device designed to ensure the accuracy and stability during the connecting rod welding process. This device usually includes a variety of jigs and positioning systems, which can accurately fix each part of the connecting rod to ensure the docking accuracy of each welding point.

[0004] The existing positioning device for loader connecting rod welding processing cannot feed automatically, resulting in low welding efficiency. It cannot perform automatic docking, and the docking may lead to inaccurate positioning, thus affecting the welding quality and the overall structural strength. Therefore, a positioning device for loader connecting rod welding processing is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a positioning device for loader connecting rod welding processing, which solves the problems of inability to feed automatically and inability to perform automatic docking in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A positioning device for loader connecting rod welding processing, including a bottom plate. A base is fixedly connected to the middle of the top of the bottom plate. A fixing frame is fixedly connected to the top of the base. A second motor is fixedly connected to the right side of the fixing frame. The output end of the second motor is fixedly connected to a bidirectional lead screw. The left and right sides of the outer circle of the bidirectional lead screw penetrate and are threadedly connected with nut pairs. A connecting block is fixedly connected to the top of the nut pair. A fixing seat is fixedly connected to the top of the connecting block. The front and rear sides of the inner wall of the fixing seat penetrate and are slidably connected with sliders. A clamping plate is fixedly connected to the top of the slider. A bidirectional telescopic rod is fixedly connected to the bottom between the front and rear sides of the clamping plate. Conveying mechanisms are arranged on the left and right sides of the bottom plate;

[0007] By adopting the above technical solution, the loader connecting rod moves between the two clamping plates. The bidirectional telescopic rod drives the clamping plates to approach each other to position and fix the loader connecting rod. Then, the second motor drives the bidirectional lead screw to rotate, so that the nut pair drives the two loader connecting rods to approach each other, thereby docking the two loader connecting rods.

[0008] As a further description of the above technical solution: The conveying mechanism includes four side plates. A first motor is fixedly connected to one side of each side plate. The output end of the first motor is fixedly connected to a conveying wheel. Fixing plates are fixedly connected to the front sides of the side plates. Two limiting plates are fixedly connected to one side of each fixing plate.

[0009] By adopting the above technical solution, the loader connecting rod to be welded is placed between the two limiting plates. The loader connecting rod is limited by the limiting plates, so that the loader connecting rod enters the card slot of the conveying wheel. The first motor drives the conveying wheel to rotate to convey the loader connecting rod.

[0010] As a further description of the above technical solution: A support rod is fixedly connected to the rear side of the top of the bottom plate. A connecting plate is fixedly connected to the top of the support rod.

[0011] By adopting the above technical solution, the hydraulic telescopic rod is fixed by the support rod and the connecting plate.

[0012] As a further description of the above technical solution: A hydraulic telescopic rod penetrates and is arranged on the top of the connecting plate. A welding machine is arranged at the bottom of the hydraulic telescopic rod.

[0013] By adopting the above technical solution, the hydraulic telescopic rod drives the welding machine to move downward to weld the loader connecting rod.

[0014] As a further description of the above technical solution: Fixing blocks are fixedly connected to the tops of the side plates. A pneumatic telescopic rod penetrates and is arranged on one side of each fixing block.

[0015] By adopting the above technical solution, the pneumatic telescopic rod drives the loader connecting rod to approach the clamping plate, thereby automatically feeding the loader connecting rod.

[0016] As a further description of the above technical solution: Springs are fixedly connected to the middle of the front and rear sides of the clamping plate.

[0017] By adopting the above technical solution, the clamping plate fixes the loader connecting rod through the tension force of the spring.

[0018] As a further description of the above technical solution: Card slots are formed on the outer ring of the conveying wheel, and the connecting rod is located inside the card slots.

[0019] By adopting the above technical solution, the connecting rod is placed in the card slot, and the first motor drives the conveying wheel to rotate to transfer the connecting rod.

[0020] As a further description of the above technical solution: A limiting block is fixedly connected to the middle of the top of the fixed seat, and the bidirectional telescopic rod is fixedly connected to the limiting block.

[0021] By adopting the above technical solution, the bidirectional telescopic rod is fixed by the limit block.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] 1. A positioning device for loader connecting rod welding processing provided by the present utility model. First, the loader connecting rod to be welded is placed between two limit plates, so that the loader connecting rod enters the card slot of the conveying wheel. The first motor drives the conveying wheel to rotate to move the loader connecting rod to the top, and the pneumatic telescopic rod drives the loader connecting rod to approach the clamping plate, thereby automatically feeding the loader connecting rod.

[0024] 2. A positioning device for loader connecting rod welding processing provided by the present utility model. The bidirectional telescopic rod drives the clamping plates to approach each other to position and fix the loader connecting rod, and then the second motor drives the bidirectional lead screw to rotate, so that the nut pair drives the two loader connecting rods to approach each other, thereby docking the two loader connecting rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0026] Figure 2 is a structural schematic diagram of the conveying wheel of the present utility model;

[0027] Figure 3 is a structural schematic diagram of the fixing frame of the present utility model.

[0028] In the figure: 1. Base plate; 2. Support rod; 3. Connecting plate; 4. Hydraulic telescopic rod; 5. Welding machine; 6. Side plate; 7. First motor; 8. Conveying wheel; 9. Fixed plate; 10. Limit plate; 11. Fixed block; 12. Pneumatic telescopic rod; 13. Card slot; 14. Base; 15. Fixing frame; 16. Second motor; 17. Bidirectional lead screw; 18. Nut pair; 19. Connecting block; 20. Fixed seat; 21. Slide block; 22. Clamping plate; 23. Limit block; 24. Bidirectional telescopic rod; 25. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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.

[0030] To further understand the content of the present utility model, the present utility model will be described in detail in conjunction with the accompanying drawings.

[0031] Combined with Figure 1 , a positioning device for the welding process of the loader connecting rod of the present utility model includes a bottom plate 1. A base 14 is fixedly connected to the middle of the top of the bottom plate 1. A support rod 2 is fixedly connected to the rear side of the top of the bottom plate 1. A connecting plate 3 is fixedly connected to the top of the support rod 2. A hydraulic telescopic rod 4 is arranged through and on the top of the connecting plate 3. A welding machine 5 is arranged at the bottom of the hydraulic telescopic rod 4. The hydraulic telescopic rod 4 is fixed by the support rod 2 and the connecting plate 3. The hydraulic telescopic rod 4 drives the welding machine 5 to move downward to weld the loader connecting rod.

[0032] Combined with 3, a fixing frame 15 is fixedly connected to the top of the base 14. A second motor 16 is fixedly connected to the right side of the fixing frame 15. A bidirectional lead screw 17 is fixedly connected to the output end of the second motor 16. The left and right sides of the outer ring of the bidirectional lead screw 17 are penetrated and threadedly connected with a nut pair 18. A connecting block 19 is fixedly connected to the top of the nut pair 18. Fixing seats 20 are fixedly connected to the top of the connecting block 19. The front and rear sides of the inner wall of the fixing seat 20 are penetrated and slidably connected with sliders 21. Clamping plates 22 are fixedly connected to the top of the sliders 21. A bidirectional telescopic rod 24 is fixedly connected to the bottom between the front and rear sides of the clamping plate 22. Springs 25 are fixedly connected to the middle of the front and rear sides of the clamping plate 22. A limiting block 23 is fixedly connected to the middle of the top of the fixing seat 20, and the bidirectional telescopic rod 24 is fixedly connected to the limiting block 23. The loader connecting rod is driven by the pneumatic telescopic rod 12 to approach the clamping plate 22, so as to automatically feed the loader connecting rod. The loader connecting rod moves between the two clamping plates 22. The bidirectional telescopic rod 24 drives the clamping plates 22 to approach each other to position and fix the loader connecting rod. Then, the second motor 16 drives the bidirectional lead screw 17 to rotate, so that the nut pair 18 drives the two loader connecting rods to approach each other.

[0033] Combined with Figure 2 , conveying mechanisms are arranged on the left and right sides of the bottom plate 1. The conveying mechanisms include four side plates 6. First motors 7 are fixedly connected to one side of each side plate 6. Conveying wheels 8 are fixedly connected to the output ends of the first motors 7. Fixing plates 9 are fixedly connected to the front sides of the side plates 6. Two limiting plates 10 are fixedly connected to one side of each fixing plate 9. Fixing blocks 11 are fixedly connected to the tops of the side plates 6. Pneumatic telescopic rods 12 are arranged through one side of each fixing block 11. Card slots 13 are formed on the outer ring of the conveying wheel 8, and the connecting rod is located inside the card slot 13. The loader connecting rod to be welded is placed between the two limiting plates 10. The loader connecting rod is limited by the limiting plates 10 so that the loader connecting rod enters the card slot 13 of the conveying wheel 8. The first motor 7 drives the conveying wheel 8 to rotate to convey the loader connecting rod. When the loader connecting rod moves to the top, the pneumatic telescopic rod 12 drives the loader connecting rod to approach the clamping plate 22, so as to automatically feed the loader connecting rod.

[0034] Working principle: When the utility model is in use, first place the loader connecting rod to be welded between the two limit plates 10. The loader connecting rod is limited by the limit plates 10 so that the loader connecting rod enters the card slot 13 of the conveying wheel 8. The first motor 7 drives the conveying wheel 8 to rotate to convey the loader connecting rod. When the loader connecting rod moves to the top, the pneumatic telescopic rod 12 drives the loader connecting rod to approach the clamping plate 22, thereby automatically feeding the loader connecting rod. The loader connecting rod moves between the two clamping plates 22, and the two clamping plates 22 are driven by the bidirectional telescopic rod 24 to approach each other to position and fix the loader connecting rod. Then, the second motor 16 drives the bidirectional lead screw 17 to rotate, so that the nut pair 18 drives the two loader connecting rods to approach each other, thereby docking the two loader connecting rods. The hydraulic telescopic rod 4 drives the welding machine 5 to move downward to weld the loader connecting rod.

[0035] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning device for the welding and processing of loader connecting rods, comprising a bottom plate (1), characterized in that: A base (14) is fixedly connected to the middle of the top of the bottom plate (1). A fixing frame (15) is fixedly connected to the top of the base (14). A second motor (16) is fixedly connected to the right side of the fixing frame (15). An output end of the second motor (16) is fixedly connected to a bidirectional lead screw (17). The left and right sides of the outer ring of the bidirectional lead screw (17) penetrate and are threadedly connected with a nut pair (18). A connecting block (19) is fixedly connected to the top of the nut pair (18). Fixing seats (20) are fixedly connected to the top of the connecting block (19). The front and rear sides of the inner wall of the fixing seat (20) penetrate and are slidably connected with sliders (21). Clamping plates (22) are fixedly connected to the top of the sliders (21). A bidirectional telescopic rod (24) is fixedly connected to the bottom between the front and rear sides of the clamping plate (22). Conveying mechanisms are arranged on the left and right sides of the bottom plate (1).

2. The positioning device for the welding and processing of the loader connecting rod according to claim 1, characterized in that: The conveying mechanism includes four side plates (6). A first motor (7) is fixedly connected to one side of each side plate (6). An output end of the first motor (7) is fixedly connected to a conveying wheel (8). Fixing plates (9) are fixedly connected to the front sides of the side plates (6). Two limiting plates (10) are fixedly connected to one side of each fixing plate (9).

3. A positioning device for the welding and processing of loader connecting rods according to claim 1, characterized in that: A support rod (2) is fixedly connected to the rear side of the top of the bottom plate (1). A connecting plate (3) is fixedly connected to the top of the support rod (2).

4. A positioning device for the welding and processing of a loader linkage according to claim 3, characterized in that: A hydraulic telescopic rod (4) penetrates and is arranged on the top of the connecting plate (3). A welding machine (5) is arranged at the bottom of the hydraulic telescopic rod (4).

5. A positioning device for loader connecting rod welding and processing according to claim 2, characterized in that: Fixing blocks (11) are fixedly connected to the top of the side plates (6). A pneumatic telescopic rod (12) penetrates and is arranged on one side of each fixing block (11).

6. The positioning device for loader connecting rod welding and processing according to claim 1, characterized in that: Springs (25) are fixedly connected to the middle of the front and rear sides of the clamping plate (22).

7. A positioning device for the welding and processing of a loader linkage according to claim 2, characterized in that: A clamping groove (13) is formed on the outer ring of the conveying wheel (8), and the connecting rod is located inside the clamping groove (13).

8. A positioning device for the welding and processing of loader connecting rods according to claim 1, characterized in that: A limiting block (23) is fixedly connected to the middle of the top of the fixing seat (20), and the bidirectional telescopic rod (24) is fixedly connected to the limiting block (23).

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