Welding tool for side plate of hydraulic oil tank of excavator

Abstract

The utility model discloses an excavator hydraulic oil tank side plate welding tool which comprises a base, propelling plates are arranged on the two sides of the top of the base, propelling frames are arranged on the tops of the propelling plates, and two positioning heads are welded to the opposite sides of the two propelling plates. Two threaded extrusion rods are arranged at the tops of the opposite sides of the two propelling frames in a penetrating mode, the threaded extrusion rods are in threaded connection with the propelling frames, a propelling assembly is arranged on the left side of the top of the base, and the propelling assembly comprises an electric telescopic rod fixedly installed at the rear end of the left side of the top of the base; the left side of the top of the base is slidably connected with a rack. Through the arrangement of the propelling assembly, the two propelling plates and the propelling frame are oppositely pulled and propelled, meanwhile, the locating head and the threaded extrusion rod are used in cooperation, the hydraulic oil tank is centrally located, and the side plate of the hydraulic oil tank is clamped and fixed, so that the purposes of automatic center locating and secondary propelling extrusion limiting can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic oil tank processing technology, and in particular relates to a welding fixture for the side plate of an excavator hydraulic oil tank. Background Technology

[0002] The hydraulic oil tank is an important component of the hydraulic system, mainly used to store hydraulic oil. The side plate of the hydraulic oil tank is a plate-like structure that makes up the side part of the hydraulic oil tank. It is usually a metal plate (such as steel plate) or a high-strength plastic plate. Its shape and size are matched with the overall design of the hydraulic oil tank to form a closed space for storing hydraulic oil.

[0003] In the welding of hydraulic oil tank side plates for excavators, it is necessary to position and fix the hydraulic oil tank side plates. However, during positioning, the user needs to use two toolings to fix and clamp the oil tank and side plates in turn, which is a cumbersome process. Moreover, when fixing the side plates, it may not be possible to provide uniform compressive force, which can easily lead to uneven force on the two side plates and displacement during welding, resulting in welding defects. Therefore, it is necessary to provide a welding tooling for excavator hydraulic oil tank side plates that uses a center positioning method to clamp and fix the oil tank, and is equipped with a secondary propulsion structure, which can quickly and accurately complete the positioning and fixing of hydraulic oil tank side plates, thereby improving welding quality. Summary of the Invention

[0004] The purpose of this utility model is to provide a welding fixture for the side plate of the hydraulic oil tank of an excavator. It adopts a center positioning method to clamp and fix the oil tank, and is equipped with a secondary propulsion structure, which can quickly and accurately complete the positioning and fixing of the hydraulic oil tank side plate, improve the welding quality, and solve the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A welding fixture for the side plate of a hydraulic oil tank of an excavator includes a base: both sides of the top of the base are provided with push plates, the top of the push plates is provided with push frames, two positioning heads are welded on the opposite sides of the two push plates, two threaded extrusion rods are threaded through the top of the opposite sides of the two push frames, the threaded extrusion rods are threadedly connected to the push frames, a push assembly is provided on the left side of the top of the base, the push assembly includes an electric telescopic rod fixedly installed at the rear end of the left side of the top of the base, a rack is slidably connected to the left side of the top of the base, a bidirectional threaded rod is threadedly connected to the inner cavity of the base, the left end of the bidirectional threaded rod extends to the outside of the base and is fixedly connected to a gear, the rack and the gear mesh, the bottom end of the push frame extends to the inner cavity of the base and is fixedly connected to a threaded slider, the threaded slider is threadedly connected to the surface of the bidirectional threaded rod.

[0006] Preferably, the top of the push plate is provided with a rectangular slide groove adapted to the push frame, and a fixed column is fixedly connected to the inner cavity of the rectangular slide groove, and the push frame is slidably connected to the surface of the fixed column.

[0007] Preferably, a spring is fitted onto the surface of the fixed column, one end of the spring is welded to the push frame, and the other end of the spring is welded to a rectangular slide groove.

[0008] Preferably, two L-shaped limiting frames are welded to the left side of the top of the base, and the rack is slidably connected to the inner cavity of the two L-shaped limiting frames.

[0009] Preferably, the front and rear sides of the bottom of the push plate are welded with limiting guide rails, and two limiting arc grooves adapted to the limiting guide rails are opened on both sides of the top of the base.

[0010] Preferably, one end of the threaded extrusion rod is rotatably connected to a rubber pressure head, and the side of the rubber pressure head away from the threaded extrusion rod is in close contact with the side plate of the oil tank.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model, through the setting of the propulsion component, pulls and pushes the two propulsion plates and the propulsion frame against each other. At the same time, with the cooperation of the positioning head and the threaded extrusion rod, the hydraulic oil tank is centered and the side plate of the hydraulic oil tank is clamped and fixed, thus achieving the purpose of automatic center positioning and secondary propulsion extrusion limit.

[0013] 2. This utility model uses a rectangular slide groove and a fixed column to limit and guide the push frame. At the same time, with the help of springs, the push plate is elastically pushed, so that the hydraulic oil tank is centered and the side plates on both sides of the hydraulic oil tank can be uniformly squeezed and limited.

[0014] 3. This utility model uses the combination of limiting guide rail and limiting arc groove to limit and guide the push plate, so that the push plate can drive the positioning head to accurately press on both sides of the hydraulic oil tank, thereby improving the stability of the hydraulic oil tank during the welding process. Attached Figure Description

[0015] in:

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

[0017] Figure 2 This is a perspective view of the base and propulsion assembly according to one embodiment of the present invention;

[0018] Figure 3 This is a perspective view of a propulsion plate and a positioning head according to one embodiment of the present invention;

[0019] Figure 4 This is a three-dimensional schematic diagram of a propulsion frame and a threaded extrusion rod according to an embodiment of the present invention.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Base, 2. Propulsion plate, 3. Propulsion frame, 4. Positioning head, 5. Threaded extrusion rod, 6. Propulsion assembly, 61. Electric telescopic rod, 62. Rack, 63. Bidirectional threaded rod, 64. Gear, 65. Threaded slider, 7. Rectangular slide, 8. Fixed column, 9. Spring, 10. L-shaped limit frame, 11. Limiting guide rail, 12. Limiting arc groove, 13. Rubber pressure head. Detailed Implementation

[0022] In the following description, embodiments of the welding fixture for the side plate of the excavator hydraulic oil tank of this utility model will be described with reference to the accompanying drawings.

[0023] Figure 1-4This invention illustrates a welding fixture for the side plates of an excavator hydraulic oil tank according to an embodiment of the present invention. The fixture includes a base 1. Both sides of the top of the base 1 are provided with push plates 2. Limiting guide rails 11 are welded to the front and rear sides of the bottom of the push plates 2. Two limiting arc grooves 12, adapted to the limiting guide rails 11, are formed on both sides of the top of the base 1. Through the combined use of the limiting guide rails 11 and the limiting arc grooves 12, the push plates 2 are limited and guided, enabling the push plates 2 to drive the positioning head 4 to accurately press against both sides of the hydraulic oil tank, thus improving the stability of the hydraulic oil tank during the welding process. Qualitatively, a rubber pressure head 13 is rotatably connected to one end of the threaded extrusion rod 5. The side of the rubber pressure head 13 away from the threaded extrusion rod 5 is tightly fitted with the side plate of the oil tank. A pusher frame 3 is provided on the top of the pusher plate 2. A rectangular slide groove 7 adapted to the pusher frame 3 is opened on the top of the pusher plate 2. A fixing post 8 is fixedly connected to the inner cavity of the rectangular slide groove 7. The pusher frame 3 is slidably connected to the surface of the fixing post 8. A spring 9 is sleeved on the surface of the fixing post 8. One end of the spring 9 is welded to the pusher frame 3, and the other end of the spring 9 is welded to the rectangular slide groove 7. Through the cooperation of the rectangular slide groove 7 and the fixing post 8 The system is used to limit and guide the pusher frame 3. Simultaneously, with the cooperation of the spring 9, it elastically pushes the pusher plate 2, allowing the hydraulic oil tank to be centered. This ensures that the side plates on both sides of the hydraulic oil tank are evenly compressed and limited. Two positioning heads 4 are welded to opposite sides of each of the two pusher plates 2. Two threaded compression rods 5 are threadedly connected to the top of the opposite sides of each of the two pusher frames 3. A pusher assembly 6 is located on the left side of the top of the base 1. The pusher assembly 6 includes components fixedly installed on the left side of the top of the base 1. The electric telescopic rod 61 at the rear end of the base 1 is slidably connected to the left side of the top of the base 1. Two L-shaped limiting frames 10 are welded to the left side of the top of the base 1. The rack 62 is slidably connected to the inner cavity of the two L-shaped limiting frames 10. The inner cavity of the base 1 is threadedly connected to a bidirectional threaded rod 63. The left end of the bidirectional threaded rod 63 extends to the outside of the base 1 and is fixedly connected to a gear 64. The rack 62 and the gear 64 mesh with each other. The bottom end of the pusher 3 extends to the inner cavity of the base 1 and is fixedly connected to a threaded slider 65. The threaded slider 65 is threadedly connected to the surface of the bidirectional threaded rod 63.

[0024] Working Principle: When using this invention, the user places the oil tank on top of the base 1, then activates the electric telescopic rod 61. The electric telescopic rod 61 pushes the rack 62 forward, causing the rack 62 to slide forward. In the meshing transmission state of the rack 62 and the gear 64, the gear 64 drives the bidirectional threaded rod 63 to rotate in the inner cavity of the base 1. During the rotation of the bidirectional threaded rod 63, the two threaded sliders 65 slide towards each other. The threaded sliders 65 drive the pusher frame 3 to move. At the same time, under the elastic force of the spring 9, the two pusher plates 2 move towards each other, so that the end of the positioning head 4 away from the pusher plate 2 comes into contact with the hydraulic oil. The hydraulic oil tank is clamped and positioned at the center of the top of the base 1. At this time, the threaded extrusion rod 5 contacts the side plate of the hydraulic oil tank, and the electric telescopic rod 61 stops. The user places the side plate of the hydraulic oil tank on the side of the hydraulic oil tank, and then opens the electric telescopic rod 61 again. The bidirectional threaded rod 63 starts again and drives the threaded slider 65 to move. At this time, the spring 9 is compressed, which causes the two push frames 3 to move towards each other continuously, causing the threaded extrusion rod 5 to slide until the threaded extrusion rod 5 drives the rubber pressure head 13 to press against the side plate of the hydraulic oil tank, so that the hydraulic oil tank is tightly pressed against both sides of the hydraulic oil tank.

[0025] In summary: The welding fixture for the hydraulic oil tank side plate of this excavator, through the setting of the propulsion component 6, pulls and pushes the two propulsion plates 2 and the propulsion frame 3 against each other. At the same time, with the cooperation of the positioning head 4 and the threaded extrusion rod 5, the hydraulic oil tank is centered and the hydraulic oil tank side plate is clamped and fixed, thus achieving the purpose of automatic center positioning and secondary propulsion extrusion limit.

Claims

1. A welding fixture for the side plate of a hydraulic oil tank in an excavator, characterized in that, The base (1) includes a base with two push plates (2) on both sides of its top. Each push plate (2) has a push frame (3) on its top. Two positioning heads (4) are welded to opposite sides of each of the two push plates (2). Two threaded extrusion rods (5) are threaded through the top of opposite sides of each of the two push frames (3). The threaded extrusion rods (5) are threadedly connected to the push frames (3). A push assembly (6) is provided on the left side of the top of the base (1). The push assembly (6) includes components fixedly installed on the left side of the top of the base (1). The rear electric telescopic rod (61) has a rack (62) slidably connected to the left side of the top of the base (1). The inner cavity of the base (1) is threaded with a bidirectional threaded rod (63). The left end of the bidirectional threaded rod (63) extends through to the outside of the base (1) and is fixedly connected with a gear (64). The rack (62) and the gear (64) mesh with each other. The bottom end of the pusher frame (3) extends through to the inner cavity of the base (1) and is fixedly connected with a threaded slider (65). The threaded slider (65) is threadedly connected to the surface of the bidirectional threaded rod (63).

2. The welding fixture for the side plate of the hydraulic oil tank of an excavator according to claim 1, characterized in that, The top of the push plate (2) is provided with a rectangular slide groove (7) that is compatible with the push frame (3). The inner cavity of the rectangular slide groove (7) is fixedly connected to a fixed column (8), and the push frame (3) is slidably connected to the surface of the fixed column (8).

3. The welding fixture for the side plate of the hydraulic oil tank of an excavator according to claim 2, characterized in that, A spring (9) is fitted on the surface of the fixed column (8). One end of the spring (9) is welded to the push frame (3), and the other end of the spring (9) is welded to the rectangular slide groove (7).

4. The welding fixture for the side plate of the hydraulic oil tank of an excavator according to claim 3, characterized in that, Two L-shaped limiting frames (10) are welded to the left side of the top of the base (1), and the rack (62) is slidably connected to the inner cavity of the two L-shaped limiting frames (10).

5. The welding fixture for the side plate of the hydraulic oil tank of an excavator according to claim 4, characterized in that, The front and rear sides of the bottom of the push plate (2) are welded with limit guide rails (11), and two limit arc grooves (12) adapted to the limit guide rails (11) are opened on both sides of the top of the base (1).

6. The welding fixture for the side plate of the hydraulic oil tank of an excavator according to claim 5, characterized in that, One end of the threaded extrusion rod (5) is rotatably connected to a rubber pressure head (13), and the side of the rubber pressure head (13) away from the threaded extrusion rod (5) is tightly fitted with the side plate of the oil tank.

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