Positioning tool for excavator chassis machining

By designing structures such as fixed frames, support skeletons, and positioning seats, rapid and stable positioning and efficient processing of excavator chassis are achieved, solving the problem of unstable positioning of existing positioning fixtures on large chassis and improving processing results.

CN223947850UActive Publication Date: 2026-02-27XUZHOU NORMAL UNIVERSITY
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Patent Information

Application Number
CN202520515988.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-02-27
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

Existing excavator chassis positioning fixtures are difficult to guarantee in terms of positioning stability and processing effect during use, especially for large I-beam structure chassis, where simple side pressing cannot meet processing requirements.

Method used

A positioning fixture comprising a fixed frame, a support skeleton, a connecting arm, a positioning seat, a positioning plate, and a drive assembly was designed. The chassis is raised by the suspended frame and the clamping structure of the positioning seat and the positioning plate is used to achieve four-end locking and limiting. The height and angle are adjusted by the drive of a cylinder and a motor.

Benefits of technology

It enables rapid and stable positioning and efficient machining of excavator chassis, and can adjust the positioning height and angle according to requirements, thereby improving the stability and efficiency of machining.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a locating tool for excavator chassis machining, and particularly relates to the technical field of excavator machining, the locating tool comprises a base, fixing frames are symmetrically arranged at the two ends of the base, supporting arms are installed on the inner sides of the two fixing frames, and supporting frameworks are arranged on the inner sides of the two supporting arms; a connecting arm is fixed between the two supporting frameworks, and positioning seats are connected to the two ends of the supporting frameworks; through the arrangement of the fixing frame, the supporting framework and the connecting arm, the excavator chassis can be preliminarily erected in a suspended mode, through the arrangement of the structures such as the positioning base, the positioning plates, the movable columns and the connecting blocks, the two positioning plates on the positioning base can be controlled to be clamped at the end of the excavator chassis, and under the action of the four positioning bases, the excavator chassis can be accurately positioned. The four ends of the excavator chassis can be locked and limited, then the excavator chassis can be rapidly and stably positioned, high efficiency and stability are achieved, and the using effect is good.
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Description

TECHNICAL FIELD

[0001] The utility model relates to excavator processing technical field, concretely relates to a positioning tool for excavator chassis processing. BACKGROUND

[0002] The excavator is also called excavating machinery, and is a kind of earth-moving machinery for excavating materials above or below the ground level with a shovel and loading into transport vehicles or unloading to stockpile site.The materials excavated by the excavator are mainly soil, coal, sand and soil and rock after pre-loosening.From the development of engineering machinery in recent years, the development of the excavator is relatively fast, and the excavator has become one of the most important engineering machinery in engineering construction.

[0003] At present, when the excavator chassis is processed, it is usually necessary to position it first, and the existing positioning tool is usually only simply clamped and fixed on both sides of the chassis when in use, and due to the fact that the excavator chassis is mostly in the shape of an I-beam structure and has large volume and weight, simple side pressure cannot guarantee the stability of positioning, and it is also not conducive to the processing of workers, so the use effect is not good. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a positioning tool for excavator chassis processing, by setting up fixing frame, support skeleton and connecting arm, the excavator chassis can be preliminarily suspended and lifted, and by setting up positioning seat, positioning plate, movable column and connecting block, the two positioning plates on the positioning seat can be clamped at the end of the excavator chassis, and under the action of four positioning seats, the four ends of the excavator chassis can be locked and positioned respectively, so that the positioning of the excavator chassis can be realized quickly and stably, efficiently and stably, and the use effect is good, to solve the above technical deficiencies.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a positioning tool for excavator chassis processing, comprising:

[0006] The two ends of the base are symmetrically provided with fixing frames, the inner sides of the two fixing frames are both provided with support arms, the inner sides of the two support arms are both provided with support skeletons, the two support skeletons are fixedly provided with a connecting arm, and the two ends of the support skeleton are both connected with a positioning seat;

[0007] The inside of the positioning seat is provided with a cavity, the two sides of the inside of the cavity are symmetrically provided with movable movable columns, the opposite ends of the two movable columns are symmetrically fixedly provided with connecting blocks, the top of the positioning seat is symmetrically provided with positioning plates, the top ends of the two connecting blocks are both through the guide grooves and are both fixedly connected with the two positioning plates, and the positioning seat is provided with a driving assembly, and the driving assembly is used to drive the two positioning plates to move towards each other or away from each other.

[0008] Preferably, the driving assembly comprises a second motor fixedly connected in the middle of the bottom side of the positioning plate, the output end of the second motor extends into the cavity groove and is connected with a transmission gear, the inner sides of the two movable columns are provided with toothed plates matched with the transmission gear.

[0009] Preferably, the opposite ends of the two movable columns are fixedly provided with limiting blocks, and the inside of the cavity groove is symmetrically provided with limiting grooves matched with the limiting blocks.

[0010] Preferably, the inner side of the positioning plate is provided with a rubber pad, and the outer wall of the rubber pad is provided with anti-skid convex patterns.

[0011] Preferably, the two ends of the connecting arm and the support frame are both provided with reinforcing arms.

[0012] Preferably, the inner side of the support arm is provided with a sliding cavity, and the top end of the support arm is fixedly provided with a gas cylinder, the output end of the gas cylinder extends into the sliding cavity and is connected with a sliding block, one end of the two sliding blocks extends out of the sliding cavity and is connected with the two support frames respectively.

[0013] Preferably, the inner side of the top end of the two fixing frames is symmetrically connected with a connecting shaft through a bearing, and the end of the connecting shaft is fixedly connected with the support arm, the outer side of one of the fixing frames is fixedly connected with a first motor, the output end of the first motor is connected with a driving gear, and one end of the connecting shaft is fixedly provided with a driven gear engaged with the driving gear.

[0014] In the above technical scheme, the technical effects and advantages of the utility model are provided:

[0015] By setting the fixing frame, the support frame and the connecting arm, the excavator chassis can be preliminarily suspended and lifted, and by setting the positioning seat, the positioning plate, the movable column and the connecting block and other structures, the two positioning plates on the positioning seat can be clamped at the ends of the excavator chassis, and under the action of the four positioning seats, the four ends of the excavator chassis can be locked and positioned, so that the positioning of the excavator chassis can be quickly and stably realized, which is efficient, stable and has good use effect.

[0016] By setting the sliding cavity, the sliding block and the gas cylinder, the two sliding blocks can drive the support frame to move, so that the support frame and the connecting arm drive the excavator chassis to lift, so that the positioning height of the excavator chassis can be adjusted according to the demand, so that the workers can better perform the working operation on the excavator chassis.

[0017] By setting the driving gear, the driven gear and the connecting shaft and other structures, the connecting shaft can drive the support arm to rotate, so that the support arm drives the excavator chassis to deflect left and right through the support frame, so that the positioning angle of the excavator chassis can be adjusted according to the demand, and the use effect of the device is further improved. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the fixing frame and the support arm of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the positioning seat and the positioning plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the cavity groove of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Base; 2. Fixing frame; 3. Connecting shaft; 4. Support arm; 5. Support frame; 6. Connecting arm; 7. Reinforcing arm; 8. Slide cavity; 9. Slider; 10. Cylinder; 11. First motor; 12. Drive gear; 13. Driven gear; 14. Positioning seat; 15. Cavity groove; 16. Second motor; 17. Transmission gear; 18. Movable column; 19. Tooth plate; 20. Connecting block; 21. Guide groove; 22. Positioning plate; 23. Limiting block; 24. Limiting groove. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figures 1-4 The positioning fixture shown includes:

[0027] The base 1 has a fixed frame 2 symmetrically arranged at both ends. The inner side of each fixed frame 2 is equipped with a support arm 4. The inner side of each support arm 4 is equipped with a support frame 5. A connecting arm 6 is fixed between the two support frames 5. The two ends of the support frame 5 are connected to a positioning seat 14.

[0028] Reinforcing arms 7 are provided at both ends of the connecting arm 6 and between the connecting arm 6 and the supporting frame 5. The reinforcing arms 7 can further enhance the structural strength.

[0029] The inside of the positioning seat 14 is provided with a cavity groove 15, and the inside of the cavity groove 15 is symmetrically provided with movable movable columns 18 on both sides. The opposite ends of the two movable columns 18 are symmetrically fixed with connecting blocks 20. The top of the positioning seat 14 is symmetrically provided with guide grooves 21 matched with the connecting blocks 20 on both sides. The top of the positioning seat 14 is symmetrically provided with positioning plates 22 at both ends. The top ends of the two connecting blocks 20 pass through the guide grooves 21 and are fixedly connected with the two positioning plates 22 respectively. The positioning seat 14 is provided with a driving assembly, and the driving assembly is used to drive the two positioning plates 22 to move towards or away from each other.

[0030] The driving assembly comprises a second motor 16 fixedly connected to the bottom side of the positioning plate 22. The output end of the second motor 16 extends into the cavity groove 15 and is connected with a transmission gear 17. The inner sides of the two movable columns 18 are provided with toothed plates 19 matched with the transmission gear 17.

[0031] In use, the excavator chassis can be hoisted between the two groups of support frames 5, so that the middle part of the excavator chassis is placed on the connecting arm 6, and the four ends can be placed between the two positioning plates 22 at the end of the support frame 5 respectively, so that the excavator chassis can be initially suspended and erected.

[0032] Then the second motor 16 on the positioning seat 14 can be started respectively, so that the second motor 16 drives the transmission gear 17 to rotate, the transmission gear 17 can drive the toothed plates 19 on both sides to move, the toothed plates 19 can drive the movable columns 18 to move, and then the movable columns 18 can drive the connecting blocks 20 to slide along the guide grooves 21, so that the connecting blocks 20 can drive the positioning plates 22 to move, so that the two positioning plates 22 on the positioning seat 14 can be quickly controlled to approach to clamp the ends of the excavator chassis, and under the action of the four positioning seats 14, the four ends of the excavator chassis can be locked and positioned respectively, so that the positioning of the excavator chassis can be quickly and stably realized, which is efficient, stable and has good use effect.

[0033] The opposite ends of the two movable columns 18 are fixed with limiting blocks 23, and the inside of the cavity groove 15 is symmetrically provided with limiting grooves 24 matched with the limiting blocks 23. Therefore, by arranging the limiting blocks 23 and the limiting grooves 24, the stability of the movable column 18 during movement can be greatly improved.

[0034] The inner side of the positioning plate 22 is provided with a rubber pad, and the outer wall of the rubber pad is provided with anti-skid convex patterns. The rubber pad can greatly improve the fastening during clamping.

[0035] The inner side of the support arm 4 is provided with a sliding cavity 8, and the top end of the support arm 4 is fixed with a gas cylinder 10. The output end of the gas cylinder 10 extends into the sliding cavity 8 and is connected with a sliding block 9. One end of the two sliding blocks 9 extends out of the sliding cavity 8 and is connected with the two support frames 5 respectively.

[0036] By starting two cylinders 10, the cylinder 10 can drive the slider 9 to slide in the sliding cavity 8, and then the slider 9 can drive the support framework 5 to move, so that the support framework 5 and the connecting arm 6 drive the excavator chassis to lift, so that the positioning height of the excavator chassis can be adjusted according to requirements, so that workers can better perform working operation on the excavator chassis.

[0037] The inner side of the top end of the two fixed frames 2 is symmetrically connected with the connecting shaft 3 through a bearing pair, and the end of the connecting shaft 3 is fixedly connected with the support arm 4, the outer side of one of the fixed frames 2 is fixedly connected with the first motor 11, the output end of the first motor 11 is connected with the driving gear 12, and one end of the connecting shaft 3 is fixedly connected with the driven gear 13 engaged with the driving gear 12.

[0038] By starting the first motor 11, the first motor 11 can drive the driving gear 12 to rotate, so that the driving gear 12 drives the driven gear 13 to rotate, and then the driven gear 13 drives the support arm 4 to rotate through the connecting shaft 3, so that the support arm 4 drives the excavator chassis to deflect left and right through the support framework 5, so that the positioning angle of the excavator chassis can be adjusted according to requirements, and the use effect of the device is further improved.

[0039] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the present application.

Claims

1. A positioning tool for excavator chassis machining, characterized by, Include: Base (1), both ends of the base (1) are symmetrically provided with fixed frame (2), the inner side of two fixed frame (2) is equipped with support arm (4), the inner side of two support arm (4) is provided with support skeleton (5), two support skeleton (5) is fixed with connecting arm (6), both ends of support skeleton (5) are connected with positioning seat (14); The inside of the positioning seat (14) is provided with a cavity (15), the inside of the cavity (15) is symmetrically provided with a movable column (18), the opposite ends of the two movable columns (18) are symmetrically fixed with a connecting block (20), the top of the positioning seat (14) is symmetrically provided with a guide groove (21) matched with the connecting block (20), the top of the positioning seat (14) is symmetrically provided with a positioning plate (22), the top of the two connecting blocks (20) passes through the guide groove (21) and is fixedly connected with the two positioning plates (22) respectively, the positioning seat (14) is provided with a driving assembly, and the driving assembly is used for driving the two positioning plates (22) to move towards or away from each other.

2. The positioning tool for processing excavator chassis according to claim 1, characterized in that: The driving assembly includes a second motor (16) fixedly connected to the bottom side of the positioning plate (22), the output end of the second motor (16) extends into the cavity (15) and is connected with a transmission gear (17), the inner side of the two movable columns (18) is provided with a toothed plate (19) matched with the transmission gear (17).

3. The positioning tooling for excavator chassis machining according to claim 1, characterized in that: The opposite ends of the two movable columns (18) are fixed with a limiting block (23), and the inside of the cavity (15) is symmetrically provided with a limiting groove (24) matched with the limiting block (23).

4. The positioning tooling for excavator chassis machining according to claim 1, characterized in that: The inner side of the positioning plate (22) is provided with a rubber pad, and the outer wall of the rubber pad is provided with anti-skid convex patterns.

5. The positioning tool for processing excavator chassis according to claim 1, characterized in that: The two ends of the connecting arm (6) and the support skeleton (5) are provided with reinforcing arms (7).

6. The positioning tool for processing excavator chassis according to claim 1, characterized in that: The inner side of the support arm (4) is provided with a sliding cavity (8), and the top end of the support arm (4) is fixed with a gas cylinder (10), the output end of the gas cylinder (10) extends into the sliding cavity (8) and is connected with a sliding block (9), one end of the two sliding blocks (9) extends out of the sliding cavity (8) and is connected with the two support skeletons (5) respectively.

7. The positioning tooling for excavator chassis machining according to claim 1, characterized in that: The inner side of the top end of the two fixed frames (2) is symmetrically connected with a connecting shaft (3) through a bearing, and the end of the connecting shaft (3) is fixedly connected with the support arm (4), one of the outer sides of the fixed frame (2) is fixedly connected with a first motor (11), the output end of the first motor (11) is connected with a drive gear (12), one end of the connecting shaft (3) is fixedly connected with a driven gear (13) engaged with the drive gear (12).