Novel excavator bucket arm processing tool

By designing a machining fixture that combines adjustable hydraulic rods and lead screws, the problem that existing fixtures can only fix specific types of booms has been solved, enabling flexible fixing of different types of booms and improving the versatility of the machining fixture.

CN224526330UActive Publication Date: 2026-07-21徐州市茗尧机械制造有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
徐州市茗尧机械制造有限公司
Filing Date
2025-06-18
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing excavator stick machining fixtures can only fix sticks of specific models and cannot adapt to different models.

Method used

A machining fixture was designed, comprising a base plate, hydraulic rods, a stick end side plate fixing mechanism, and a stick middle support fixing mechanism. By combining hydraulic rods and lead screws, adjustable fixing of sticks of different models can be achieved.

Benefits of technology

It enables flexible fixing of different types of booms, improving the versatility and applicability of machining tooling.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224526330U_ABST
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Abstract

The utility model discloses a novel excavator bucket rod processing frock belongs to excavator bucket rod processing technical field, including bottom plate, be equipped with several sliding hydraulic pressure rod on the bottom plate, be equipped with bucket rod end side plate fixed establishment in the top of the hydraulic pressure rod of two ends, be equipped with bucket rod middle part support fixed establishment in the top of the hydraulic pressure rod of middle part, when using, through the hydraulic pressure rod of sliding middle part, can make the bucket rod middle part support fixed establishment of the hydraulic pressure rod top of middle part fixed bucket rod's middle part, then through the hydraulic pressure rod of sliding two ends, can make the bucket rod end side plate fixed establishment of two ends fixed bucket rod's end part, thereby makes the device can be used in different models of bucket rod.
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Description

Technical Field

[0001] This utility model provides a novel tooling for machining excavator sticks, belonging to the field of excavator stick machining technology. Background Technology

[0002] Excavators are heavy machinery widely used in construction, mining, agriculture, and infrastructure development. They are mainly used for excavating materials such as soil, sand, gravel, and ore, and can also perform various operations such as crushing, loading, and leveling the ground. The stick is one of the key components of an excavator, located between the boom and the bucket, and plays a role in connecting and transmitting power. The design and performance of the stick directly affect the excavator's operational flexibility and work efficiency.

[0003] Currently, excavator booms are manufactured using tooling for positioning and welding robots to ensure processing quality. However, existing welding tooling is customized according to the boom model being produced, making it impossible to fix booms of different models. Utility Model Content

[0004] The technical problem this invention aims to solve is that current excavator boom machining fixtures can only be used for fixed-model booms and are not universal.

[0005] To solve the above problems, the proposed technical solution is as follows: a novel excavator stick processing fixture, including a base plate; the base plate is provided with a plurality of sliding hydraulic rods, a stick end side plate fixing mechanism is provided above the hydraulic rods at both ends, and a stick middle support fixing mechanism is provided above the hydraulic rod in the middle.

[0006] As an improvement, a T-shaped slide bar is provided in the upper center of the base plate, a slide block is provided on the slide bar, a fixing bolt for fixing the position is provided on the slide block, and a hydraulic rod is set on the slide block; As an improvement, the stick end plate fixing mechanism includes a bottom plate end support plate that is rotatably connected to the ends of the hydraulic rods at both ends, an end plate located at one end above the bottom plate end support plate, a one-way screw rod located on both sides of the end plate, and two side plate end fixing plates threaded onto the one-way screw rod. As an improvement, the boom center support fixing mechanism includes a bottom plate center support plate located above the hydraulic rod in the middle, a double-acting screw rod rotatably located on both sides below the bottom plate center support plate, and a bottom plate center fixing plate located on both sides of the bottom plate center support plate and threadedly connected to the two double-acting screw rods respectively. As an improvement, a rotary table is provided at one end of the bidirectional lead screw to control its rotation, and the fixed plate in the middle of the base plate is higher than the support plate in the middle of the base plate and the height difference is less than the thickness of the base plate of the excavator stick.

[0007] The beneficial effects of this utility model are: When in use, this device can fix the middle part of the stick by sliding the hydraulic rod in the middle, which is located above the hydraulic rod. Then, by sliding the hydraulic rods at both ends, the end plate fixing mechanisms at both ends of the stick can fix the ends of the stick. This allows the device to be used with different types of sticks. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of a novel excavator boom machining fixture according to the present invention.

[0009] Figure 2 This is a cross-sectional view of the slide block of a novel excavator boom machining fixture according to this utility model.

[0010] Figure 3 This is a schematic diagram of the stick end side plate fixing mechanism of a novel excavator stick processing fixture according to this utility model.

[0011] Figure 4 This is a schematic diagram of the middle support and fixing mechanism of the excavator stick processing fixture according to the present invention.

[0012] Figure 5 This is a schematic diagram of the state of a novel excavator boom machining fixture according to the present invention.

[0013] 1. Base plate; 101. Sliding bar; 102. Sliding seat; 103. Fixing bolt; 2. Hydraulic rod; 3. Stick end side plate fixing mechanism; 301. Base plate end support plate; 302. End plate; 303. One-way lead screw; 304. Side plate end fixing plate; 4. Stick middle support fixing mechanism; 401. Base plate middle support plate; 402. Two-way lead screw; 4021. Rotary table; 403. Base plate middle fixing plate. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] according to Figure 1 As shown in Figure 5: This utility model provides a novel excavator boom machining fixture, including a base plate 1; a plurality of sliding hydraulic rods 2 are provided on the base plate 1; a T-shaped slide bar 101 is provided in the upper center of the base plate 1, a slide seat 102 is provided on the slide bar 101, and a fixing bolt 103 is provided on the slide seat 102 to fix the position, and the hydraulic rods 2 are disposed on the slide seat 102; thus, by sliding the slide seat 102 on the slide bar 101, the hydraulic rods 2 can be moved, and then the position of the slide seat 102 can be fixed by the fixing bolt 103, thereby fixing the position of the hydraulic rods 2; Above the hydraulic rod 2 located in the middle, there is a boom center support and fixing mechanism 4; the boom center support and fixing mechanism 4 includes a bottom plate center support plate 401 located above the hydraulic rod 2 located in the middle, two-way lead screws 402 rotatably located on both sides below the bottom plate center support plate 401, and bottom plate center fixing plates 403 respectively located on both sides of the bottom plate center support plate 401 and threadedly connected to the two two-way lead screws 402; one end of the two-way lead screws 402 is provided with a rotary table 4021 for controlling the rotation of the two-way lead screws 402. The middle fixing plate 403 of the base plate is higher than the middle support plate 401 of the base plate and the height difference is less than the thickness of the base plate of the excavator stick; in this way, the device can select the middle hydraulic rod 2 to be evenly distributed according to the length of the flat part of the bottom of the stick, and then place the bottom of the stick on the middle support plate 401 of the base plate of the stick middle support fixing mechanism 4. By rotating the rotary table 4021 at the same time, the bidirectional screw 402 can be driven to rotate, so that the middle fixing plates 403 of the base plate on both sides are brought closer to each other, thereby fixing the bottom of the stick; A boom end side plate fixing mechanism 3 is provided above the hydraulic rods 2 at both ends. The boom end side plate fixing mechanism 3 includes a bottom plate end support plate 301 rotatably connected to the ends of the hydraulic rods 2 at both ends, an end plate 302 set at one end above the outer side of the bottom plate end support plate 301, a one-way screw 303 set on both sides of the end plate 302, and two side plate end fixing plates 304 threaded on the one-way screw 303. In this way, when the middle part of the boom is fixed, the hydraulic rods 2 at both ends can be moved by sliding the slide seats 102 at both ends, thereby moving the boom end side plate fixing mechanism 3. Then, by lengthening or shortening the hydraulic rods 2, and then rotating the bottom plate end support plate 301, the bottom plate end support plate 301 can be made to fit against the bottom end of the boom, and the end plate 302 can be made to fit against the end of the boom. Then, by rotating the two side plate end fixing plates 304 on the same one-way screw 303, the side plates of the boom can be fixed.

[0016] The principle of this utility model is as follows: In use, first slide the sliding blocks 102 at both ends so that the distance between the side plate fixing mechanisms 3 at the ends of the stick is greater than the length of the stick. Then, slide the sliding block 102 in the middle according to the length of the bottom plate of the stick and fix it with fixing bolts 103, so that the hydraulic rods 2 in the middle are evenly distributed below the bottom plate of the stick. Next, make the hydraulic rods 2 in the middle position between the extended and shortened lengths. Then, place the bottom plate of the stick on the support plate 401 in the middle of the bottom plate. Then, rotate the rotary table 4021 at the same time to make the bidirectional lead screw 402 rotate, so that the bottom plates on both sides... The middle fixing plates 403 are brought close together to fix the bottom plate of the stick. Then, the sliding blocks 102 at both ends are slid and fixed with fixing bolts 103, so that the bottom plate end support plate 301 is attached to the bottom plate of the stick and the end plate 302 is attached to the end of the bottom plate of the stick. Then, the two side plate end fixing plates 304 on the same one-way screw 303 are rotated to fix the side plate of the stick. The bottom plate and the side plate are welded. After the welding is completed, the top plate of the stick is placed on the side plate and welded. This device can be adjusted according to the model of the stick during use, so it is suitable for different models of sticks.

[0017] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A novel excavator boom machining fixture, comprising a base plate (1); characterized in that: The base plate (1) is provided with a plurality of sliding hydraulic rods (2). Above the hydraulic rods (2) at both ends, there is a stick end side plate fixing mechanism (3). Above the hydraulic rod (2) in the middle, there is a stick middle support fixing mechanism (4). The base plate (1) has a T-shaped slide bar (101) at the upper center. The slide bar (101) has a slide seat (102) and a fixing bolt (103) with a fixed position on the slide seat (102). The hydraulic rod (2) is set on the slide seat (102). The stick end side plate fixing mechanism (3) includes a bottom plate end support plate (301) that is rotatably connected to the ends of the hydraulic rods (2) at both ends, an end plate (302) set on the outer side of the bottom plate end support plate (301), a one-way screw (303) set on both sides of the end plate (302), and two side plate end fixing plates (304) threaded on the one-way screw (303). The boom middle support fixing mechanism (4) includes a bottom plate middle support plate (401) set above the hydraulic rod (2) in the middle, a double-acting screw rod (402) rotatably set on both sides below the bottom plate middle support plate (401), and a bottom plate middle fixing plate (403) set on both sides of the bottom plate middle support plate (401) and threadedly connected to the two double-acting screw rods (402). One end of the bidirectional lead screw (402) is provided with a rotary table (4021) for controlling the rotation of the bidirectional lead screw (402). The middle fixed plate (403) of the base plate is higher than the middle support plate (401) of the base plate and the height difference is less than the thickness of the base plate of the excavator stick.