Assembling tool for bucket rod of excavator

Abstract

The utility model discloses an excavator bucket rod assembling tool, and belongs to the technical field of engineering machinery manufacturing. Comprising a bucket rod side plate, a bucket rod bottom plate, a lug plate and a shaft sleeve which can be assembled into an excavator bucket rod, and the assembling tool comprises a positioning cushion block and a nail-shaped positioning pin; the bucket rod bottom plate is in a U shape, an arc-shaped notch is formed in the bucket rod bottom plate, and the side wall of the arc-shaped notch can be tightly attached to the periphery of the shaft sleeve; the positioning cushion blocks are all arranged on the base plate, the base plate is provided with positioning pin seats capable of being supported on the bottom sides of the shaft sleeves and the lug plates, the base plate is provided with rotating cushion blocks capable of rotating to be coaxial with the positioning pin seats, the rotating cushion blocks can be supported between the two lug plates, and the nail-shaped positioning pins can penetrate through the rotating cushion blocks and can be matched with the positioning pin seats in an inserted mode; according to the excavator bucket rod assembling tool, assembling and positioning operation of the whole excavator bucket rod can be rapidly and accurately completed.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction machinery manufacturing, and particularly relates to a digging bucket rod assembly tooling. Background Art

[0002] During the production process of a digging bucket rod, it is necessary to precisely assemble multiple components such as a bucket rod side plate, a bucket rod bottom plate, an ear plate, and a bushing. The traditional assembly method mainly relies on manual positioning and adjustment with various tools, which not only has low efficiency but also is difficult to ensure the assembly accuracy and quality.

[0003] Therefore, there is an urgent need for a digging bucket rod assembly tooling that can improve the assembly efficiency and quality of the digging bucket rod. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a digging bucket rod assembly tooling that can quickly and precisely complete the assembly positioning operation of the entire digging bucket rod.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a digging bucket rod assembly tooling, including a bucket rod side plate, a bucket rod bottom plate, an ear plate, and a bushing that can be assembled into a digging bucket rod. The assembly tooling includes positioning pads that can support the bottom of the bucket rod bottom plate and the bucket rod side plate, and nail-shaped positioning pins that can be inserted and matched with the pin holes on the bushing and the ear plate;

[0006] Among them, the bucket rod bottom plate is U-shaped, and the bucket rod side plate can block the opening of the bucket rod bottom plate and enclose a box-shaped structure with the bucket rod bottom plate. The bucket rod bottom plate is provided with an arc-shaped notch, and the side wall of the arc-shaped notch can be closely attached to the outer circumference of the bushing;

[0007] The positioning pads are all arranged on a backing plate. The backing plate is provided with positioning pin seats that can support the bottom sides of the bushing and the ear plate. The backing plate is provided with a rotating pad that can be rotated to be coaxially arranged with the positioning pin seats. The rotating pad can support between the two ear plates, and the nail-shaped positioning pin can penetrate the rotating pad and be inserted and matched with the positioning pin seats.

[0008] Optionally, the central axes of the bushing and the pin holes are both arranged in the vertical direction, and a positioning hole is arranged on the bushing in the horizontal direction. A positioning seat is arranged on the backing plate, and a limit pin that can be inserted and matched with the positioning hole is slidably penetrated through the positioning seat in the horizontal direction.

[0009] Optionally, a loop-shaped through hole is arranged on the limit pin, and a limit rod that can be embedded in the loop-shaped through hole is arranged at the top of the positioning seat.

[0010] Optionally, a first reference portion capable of supporting on the bottom of the bucket arm bottom plate and a second reference portion capable of supporting on the bottom of the bucket arm side plate are provided on the positioning cushion block.

[0011] Optionally, an annular portion with an outer diameter larger than the inner diameters of the bushing and the pin hole is provided at the top of the nail-shaped positioning pin, and the nail-shaped positioning pin can be threadedly connected to the positioning pin seat.

[0012] Optionally, a through hole is provided at the top of the nail-shaped positioning pin.

[0013] Optionally, it further includes a screw block positioning plate whose one end can be sleeved on the nail-shaped positioning pin. A limiting side plate capable of abutting against the bucket arm bottom plate is provided on the screw block positioning plate, and a screw block positioning recess is provided on the screw block positioning plate.

[0014] Optionally, it further includes an ear plate gasket positioning plate. The outer edge of the ear plate gasket positioning plate can coincide with the edge of the ear plate, and a gasket positioning groove is provided on the ear plate gasket positioning plate.

[0015] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: The positions of the ear plate and the bushing are quickly positioned through the nail-shaped positioning pin, and the position of the bucket arm bottom plate is reversely positioned through the positions of the bushing and the ear plate. The position of the bucket arm side plate is positioned through the positioning cushion block. Since the positions of the ear plate and the bushing are unique, when using the assembly tooling for the excavator bucket arm in the present technical solution, the entire assembly and positioning operation of the excavator bucket arm can be completed quickly and accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0017] Figure 1 is a schematic structural diagram of the assembly tooling for the excavator bucket arm in the preferred embodiment of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the ear plate gasket positioning plate in the preferred embodiment of the present utility model;

[0019] Wherein, 1. Bucket arm side plate; 2. Bucket arm bottom plate; 201. Arc-shaped notch; 3. Ear plate; 4. Bushing; 401. Positioning hole; 5. Positioning cushion block; 6. Nail-shaped positioning pin; 601. Annular portion; 7. Spacer; 8. Positioning pin seat; 9. Rotating cushion block; 10. Positioning seat; 11. Limit pin; 1101. Return-shaped through hole; 12. Limit rod; 13. Screw block positioning plate; 1301. Screw block positioning recess; 14. Limiting side plate; 15. Ear plate gasket positioning plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only showing the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0021] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture. If this specific posture changes, then the directional indication also changes accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Embodiment 1

[0022] As Figure 1 - Figure 2 shown, a digging machine boom assembly tooling includes boom side plates 1, boom bottom plates 2, ear plates 3, and bushing sleeves 4 that can be assembled into a digging machine boom. It is characterized in that: the assembly tooling includes positioning pads 5 that can support the bottom of the boom bottom plate 2 and the boom side plates 1, and nail-shaped positioning pins 6 that can be inserted and matched with the pin holes on the bushing sleeves 4 and the ear plates 3;

[0023] Among them, the boom bottom plate 2 is U-shaped, and the boom side plates 1 can block the opening of the boom bottom plate 2 and enclose a box-shaped structure with the boom bottom plate 2. The boom bottom plate 2 is provided with an arc-shaped notch 201, and the side wall of the arc-shaped notch 201 can be closely attached to the outer circumference of the bushing sleeve 4;

[0024] The positioning pads 5 are all arranged on a backing plate 7. The backing plate 7 is provided with positioning pin seats 8 that can support the bottom sides of the bushing sleeves 4 and the ear plates 3. The backing plate 7 is provided with a rotating pad 9 that can be rotated to be coaxially arranged with the positioning pin seats 8. The rotating pad 9 can support between the two ear plates 3, and the nail-shaped positioning pin 6 can penetrate through the rotating pad 9 and can be inserted and matched with the positioning pin seats 8.

[0025] Specifically, the excavator boom in this technical solution includes a boom side plate 1, a boom bottom plate 2, two ear plates 3, and two bushings 4. The number of pin holes on each ear plate 3 is at least two. Since an arc-shaped notch 201 is provided on the boom bottom plate 2, the relative position between the bushing 4 and the boom bottom plate 2 can be positioned through the arc-shaped notch 201. In this technical solution, the positioning pin seat 8 can support as a reference support point at the bottom of the bushing 4 and one of the ear plates 3. Cooperating with the positioning pad 5, it can initially position the bottom of the boom side plate 1, the boom bottom plate 2, the bushing 4, and one of the ear plates 3. Subsequently, by twisting and rotating the rotating pad 9 and placing it above the ear plate 3, a through hole for passing through the nail-shaped positioning pin 6 is provided in the middle of the rotating pad 9. When the rotating pad 9 is placed above the ear plate 3, the position can be adjusted through the positions of the through hole and the pin hole. Subsequently, using the rotating pad 9 as the reference support point for the other ear plate 3, the other ear plate 3 can be placed on the rotating pad 9 manually or by means of equipment. Finally, the nail-shaped positioning pin 6 is inserted into the positioning pin seat 8 after passing through the pin hole on the ear plate 3 and the through hole on the rotating pad 9, so as to position and limit the positions of the bushing 4 and the ear plate 3. Cooperating with the arc-shaped notch 201 on the boom bottom plate 2, the positions of the boom side plate 1 and the boom bottom plate 2 are further positioned.

[0026] The assembling tooling for the excavator boom in this technical solution can quickly position the positions of the ear plate 3 and the bushing 4, and reversely position the position of the boom bottom plate 2 through the positions of the bushing 4 and the ear plate 3, and position the position of the boom side plate 1 through the positioning pad 5. Since the positions of the ear plate 3 and the bushing 4 are unique, when using the assembling tooling for the excavator boom in this technical solution, the assembling and positioning operation of the entire excavator boom can be completed quickly and accurately.

[0027] Furthermore, since there are certain requirements for the position of the bushing 4 on some excavator booms, therefore, as Figure 1 shown, the central axes of the bushing 4 and the pin holes are both arranged in the vertical direction, and a positioning hole 401 is arranged on the bushing 4 in the horizontal direction. A positioning seat 10 is arranged on the backing plate 7, and a limit pin 11 that can be inserted and matched with the positioning hole 401 is slidably penetrated through the positioning seat 10 in the horizontal direction. By inserting and matching the limit pin 11 with the positioning hole 401 on the bushing 4, the position of the bushing 4 can be restricted and positioned.

[0028] As mentioned above, as Figure 1 shown, since the positioning hole 401 on the bushing 4 includes but is not limited to circular, square, trapezoidal, etc., therefore, to ensure that the limit pin 11 can be accurately inserted and matched with the positioning hole 401, a loop-shaped through hole 1101 is provided on the limit pin 11, and a limit rod 12 that can be embedded in the loop-shaped through hole 1101 is arranged on the top of the positioning seat 10, so as to limit the self-rotation of the limit pin.

[0029] In this embodiment, the positioning cushion block 5 is provided with a first reference portion that can support the bottom of the bucket arm bottom plate 2 and a second reference portion that can support the bottom of the bucket arm side plate 1. There is a certain height difference between the first reference portion and the second reference portion, which can ensure that the position of the bucket arm side plate 1 on the bucket arm bottom plate 2 is relatively centered.

[0030] Furthermore, to enable the nail-shaped positioning pin 6 to further fix the positions of the bushing 4 and the ear plate 3, the top of the nail-shaped positioning pin 6 is provided with an annular portion 601 whose outer diameter is larger than the inner diameters of the bushing 4 and the pin hole. The annular portion 601 can press down on the bushing 4 or the ear plate 3, and the nail-shaped positioning pin 6 can be threadedly connected to the positioning pin seat 8.

[0031] As described above, to facilitate the operator to fasten the nail-shaped positioning pin 6, a through hole is provided at the top of the nail-shaped positioning pin 6. The operator can use tools such as a crowbar, a wrench, or a metal rod to rotate the nail-shaped positioning pin 6, which is convenient for operation. Embodiment Two

[0032] As Figure 1 - Figure 2 shown, on the basis of Embodiment One, some excavator bucket arms are provided with screw blocks, ear plate 3 gaskets, etc. on the bucket arm bottom plate 2. Therefore, the excavator bucket arm assembly tooling further includes a screw block positioning plate 13 whose one end can be sleeved on the nail-shaped positioning pin 6. The screw block positioning plate 13 is provided with a limiting side plate 14 that can abut against the bucket arm bottom plate 2, and the screw block positioning plate 13 is provided with a screw block positioning recess 1301. The screw block positioning recess 1301 can fit with the outer periphery of the screw block. When one end of the screw block positioning plate 13 is limited by the nail-shaped positioning pin 6, the screw block positioning plate 13 can rotate around the nail-shaped positioning pin 6. When the limiting side plate 14 on the screw block positioning plate 13 abuts against the bucket arm bottom plate 2, the position of the screw block positioning recess 1301 on the screw block positioning plate 13 is unique relative to the bucket arm bottom plate 2. Therefore, the position of the screw block on the bucket arm bottom plate 2 can be positioned through the position of the screw block positioning recess 1301.

[0033] Furthermore, the excavator bucket arm assembly tooling further includes an ear plate gasket positioning plate 15. The outer edge of the ear plate gasket positioning plate 15 can coincide with the edge of the ear plate 3, and the ear plate gasket positioning plate 15 is provided with a gasket positioning groove. The position of the ear plate 3 gasket on the ear plate 3 can be determined through the ear plate gasket positioning plate 15, that is, when the outer edge of the ear plate gasket positioning plate 15 coincides with the edge of the ear plate 3, the position of the gasket positioning groove on the ear plate 3 is the position of the ear plate 3 gasket.

[0034] Working principle: The positions of the ear plate 3 and the bushing 4 are quickly located by the nail-shaped positioning pin 6, and the position of the bucket arm bottom plate 2 is reversely located through the positions of the bushing 4 and the ear plate 3. The position of the bucket arm side plate 1 is located by the positioning cushion block 5. Since the positions of the ear plate 3 and the bushing 4 are unique, when using the assembling tooling for the excavator bucket arm in this technical solution, the assembling and positioning operation of the entire excavator bucket arm can be completed quickly and accurately.

[0035] Based on the ideal embodiments of the present invention as inspiration, through the above description, relevant personnel can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. An excavator arm assembly tool, comprising an arm side plate (1), an arm bottom plate (2), an ear plate (3), and a shaft sleeve (4) that can be assembled into an excavator arm, characterized in that: The assembly tool comprises a positioning pad (5) capable of supporting the bottom of the boom bottom plate (2) and the boom side plate (1), and a nail-shaped positioning pin (6) capable of plugging and cooperating with the pin holes on the shaft sleeve (4) and the ear plate (3); The arm bottom plate (2) is U-shaped, and the arm side plate (1) can block the opening of the arm bottom plate (2) and is arranged together with the arm bottom plate (2) to form a box-shaped structure. The arm bottom plate (2) is provided with an arc-shaped notch (201), and the side wall of the arc-shaped notch (201) can be tightly fitted with the outer periphery of the shaft sleeve (4); The positioning pads (5) are all arranged on the pad (7), and the pad (7) is provided with a positioning pin seat (8) capable of supporting the shaft sleeve (4) and the bottom side of the ear plate (3). The pad (7) is provided with a rotating pad (9) capable of rotating to be coaxially arranged with the positioning pin seat (8), and the rotating pad (9) can be supported between the two ear plates (3), and the nail-type positioning pin (6) can pass through the rotating pad (9) and can be plugged into and matched with the positioning pin seat (8).

2. The excavator arm assembly tool according to claim 1, characterized in that: The central axes of the shaft sleeve (4) and the pin hole are both arranged in the vertical direction, and a positioning hole (401) is arranged on the shaft sleeve (4) in the horizontal direction. A positioning seat (10) is arranged on the pad (7), and a limit pin (11) is slidably penetrated in the horizontal direction on the positioning seat (10) and can be plugged into and matched with the positioning hole (401).

3. The excavator arm assembly tool according to claim 2, characterized in that: The limiting pin (11) is provided with a circular through hole (1101), and the top of the positioning seat (10) is provided with a limiting rod (12) capable of being embedded in the circular through hole (1101).

4. The excavator arm assembly tool according to claim 1, characterized in that: The positioning pad (5) is provided with a first reference portion capable of supporting the bottom of the boom bottom plate (2), and a second reference portion capable of supporting the bottom of the boom side plate (1).

5. The excavator arm assembly tool according to claim 1, characterized in that: The top of the nail-shaped positioning pin (6) is provided with an annular portion (601) whose outer diameter is greater than the inner diameter of the shaft sleeve (4) and the pin hole, and the nail-shaped positioning pin (6) can be threadedly connected to the positioning pin seat (8).

6. The excavator arm assembly tool according to claim 1, characterized in that: A through hole is formed on the top of the nail-shaped positioning pin (6).

7. The excavator arm assembly tool according to claim 1, characterized in that: It also comprises a screw block positioning plate (13) with one end capable of being sleeved on the nail-shaped positioning pin (6), the screw block positioning plate (13) being provided with a limiting side plate (14) capable of abutting against the boom bottom plate (2), and the screw block positioning plate (13) being provided with a screw block positioning recess (1301).

8. The excavator arm assembly tool according to claim 1, characterized in that: It also comprises an ear plate gasket positioning plate (15), the outer edge of the ear plate gasket positioning plate (15) being able to overlap with the edge of the ear plate (3), and a gasket positioning groove is provided on the ear plate gasket positioning plate (15).

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