Excavator bucket shaft sleeve positioning tool

Abstract

The utility model discloses an excavator bucket shaft sleeve positioning tool, which relates to the technical field of shaft sleeve processing and comprises a base, a fixing seat is fixedly mounted in the middle of the top end of the base, centering mechanisms are symmetrically arranged on the left side and the right side of the fixing seat, and clamping mechanisms are symmetrically arranged at the front end and the rear end of the top of the fixing seat. According to the design scheme, through the design that the positioning frames are installed at the two ends of the base in the sliding mode, the transverse driving mechanism drives the positioning frames to be close to each other, the bucket shaft sleeve is fixed to the middle of the base, the longitudinal driving mechanism drives the clamping seats to be close to each other, the bucket shaft sleeve is clamped through the clamping plates, and then the positioning frames move towards the outer side of the base; and after the first group of oil through holes are machined, the first servo motor drives the clamping plate to rotate, the bucket shaft sleeve is turned over by 180 degrees under the action of the clamping plate, and then the second group of oil through holes are machined, so that secondary clamping of the bucket shaft sleeve can be avoided, and the production efficiency of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sleeve processing, in particular to an excavator bucket shaft sleeve positioning tool. Background Art

[0002] A bucket shaft sleeve is installed at the connection between the large and small arms and the bucket of the excavator. The bucket shaft sleeve prevents the bucket shaft from directly contacting the vehicle body and causing wear. For this reason, a large amount of grease is required for lubrication. At present, the bucket shaft sleeves on the market generally have oil grooves for storing lubricating grease, and two oil holes connected to the oil grooves are symmetrically arranged on the side wall of the bucket shaft sleeve. When processing the oil holes, a drilling machine is generally used for direct processing.

[0003] Due to the large diameter of the bucket shaft sleeve, the oil holes on both sides cannot be processed at the same time. After processing the oil holes on one side, the bucket shaft sleeve needs to be turned 180 degrees and then the oil holes on the other side need to be processed. This requires clamping the bucket shaft sleeve twice. The disassembly and assembly process of the bucket shaft sleeve will consume a lot of time, resulting in low production efficiency of the product. Utility Model Content

[0004] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides an excavator bucket shaft sleeve positioning tool.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an excavator bucket shaft sleeve positioning tool, comprising a base, a fixing seat is fixedly installed on the middle part of the top end of the base, and a centering mechanism is symmetrically arranged on the left and right sides of the fixing seat, the centering mechanism comprises a positioning frame, the positioning frame is slidably installed on the base, a positioning plate is slidably installed on the positioning frame, a transverse driving mechanism for driving the positioning frame to move is provided on the base, a clamping mechanism is symmetrically arranged on the front and rear ends of the top of the fixing seat, the clamping mechanism comprises a clamping seat, the clamping seat is slidably installed on the fixing seat, a clamping plate is rotatably installed on the top end of the clamping seat, a first servo motor for driving the clamping plate to rotate is fixedly installed on the clamping seat, and a longitudinal driving mechanism for driving the clamping seat to move is provided on the fixing seat.

[0006] Furthermore, a guide rod is fixedly mounted on one side of the positioning frame away from the center of the base, a positioning plate is slidably mounted on the guide rod, and a V-shaped block is fixedly mounted on the bottom end of the positioning plate.

[0007] Furthermore, the lateral drive mechanism includes a second servo motor, which is fixedly mounted on the side wall of either left or right end of the base. A first bidirectional lead screw is fixedly connected to the power output shaft of the second servo motor, and the first bidirectional lead screw is rotatably mounted on the base. The left and right ends of the first bidirectional lead screw are respectively equipped with first lead screw nuts, and the first lead screw nut is fixedly mounted on the bottom of the positioning frame, and the positioning frame is slidably mounted on the top of the base through a guide rail slider assembly.

[0008] Furthermore, the clamping plate is rotatably mounted on one side of the clamping seat close to the center of the fixing seat, and a first servo motor is fixedly mounted on one side of the clamping seat away from the clamping plate, and a power output shaft of the first servo motor is connected to the rotating shaft of the clamping plate.

[0009] Furthermore, the longitudinal drive mechanism includes a third servo motor, which is fixedly mounted on the side wall at either end of the front and rear of the fixed seat. A second bidirectional lead screw is fixedly connected to the power output shaft of the third servo motor, and the second bidirectional lead screw is rotatably mounted on the fixed seat. The front and rear ends of the second bidirectional lead screw are respectively equipped with second lead screw nuts, and the second lead screw nut is fixedly mounted on the bottom of the clamping seat. The clamping seat is slidably mounted on the top of the fixed seat through a guide rail slider assembly.

[0010] Furthermore, one end of the clamping plate away from the clamping seat is a "V"-shaped structure.

[0011] The beneficial effect of the utility model is that the design of the utility model is designed with positioning frames slidably installed at both ends of the base, and the horizontal driving mechanism drives the positioning frames to approach each other, and the bucket shaft sleeve is fixed in the middle position of the base through the positioning plate, and then the clamping seats at the front and rear ends of the fixing seat are driven to approach each other through the longitudinal driving mechanism, and the bucket shaft sleeve is clamped by the clamping plate. After the bucket shaft sleeve is clamped and fixed by the clamping plate, the positioning frame moves to the outside of the base, and then the first group of oil holes is processed by the drill bit. After the first group of oil holes are processed, the first servo motor drives the clamping plate to rotate, and the bucket shaft sleeve is flipped 180 degrees under the action of the clamping plate, and then the second group of oil holes is processed by the drill bit, thereby avoiding the secondary clamping of the bucket shaft sleeve, thereby improving the production efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is the front view of the utility model;

[0015] Figure 3 It is a right view of the utility model;

[0016] Figure 4 It is a top view of the utility model;

[0017] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure in the AA direction;

[0018] Figure 6 for Figure 3 Schematic diagram of the cross-sectional structure along the BB direction.

[0019] In the figure: 1. base, 2. fixing seat, 3. positioning frame, 4. positioning plate, 5. guide rod, 6. V-block, 7. second servo motor, 8. first bidirectional lead screw, 9. first lead screw nut, 10. clamping seat, 11. clamping plate, 12. first servo motor, 13. third servo motor, 14. second bidirectional lead screw, 15. second lead screw nut, 16. bucket shaft sleeve. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0021] according to Figure 1-6 As shown, an excavator bucket shaft sleeve positioning tool comprises a base 1, a fixing seat 2 is fixedly installed in the middle of the top of the base 1, and a centering mechanism is symmetrically arranged on the left and right sides of the fixing seat 2, the centering mechanism comprises a positioning frame 3, the positioning frame 3 is slidably installed on the base 1, and a positioning plate 4 is slidably installed on the positioning frame 3, a transverse driving mechanism for driving the positioning frame 3 to move is provided on the base 1, and a clamping mechanism is symmetrically arranged on the front and rear ends of the top of the fixing seat 2, the clamping mechanism comprises a clamping seat 10, the clamping seat 10 is slidably installed on the fixing seat 2, a clamping plate 11 is rotatably installed on the top of the clamping seat 10, a first servo motor 12 for driving the clamping plate 11 to rotate is fixedly installed on the clamping seat 10, and a longitudinal driving mechanism for driving the clamping seat 10 to move is provided on the fixing seat 2.

[0022] In the above specific embodiment, the lateral driving mechanism drives the positioning frames 3 at the left and right ends of the base 1 to approach each other, and fixes the bucket shaft sleeve 16 in the middle position of the base 1 through the positioning plate 4, and then drives the clamping seats 10 at the front and rear ends of the fixing seat 2 to approach each other through the longitudinal driving mechanism, and clamps the bucket shaft sleeve 16 through the clamping plate 11. After the bucket shaft sleeve 16 is clamped and fixed by the clamping plate 11, the positioning frame 3 moves to the outside of the base 1, and then the first group of oil holes are processed by the drill bit. After the first group of oil holes are processed, the first servo motor 12 drives the clamping plate 11 to rotate, and the bucket shaft sleeve 16 is flipped 180 degrees under the action of the clamping plate 11, and then the second group of oil holes are processed by the drill bit, thereby avoiding the secondary clamping of the bucket shaft sleeve, thereby improving the production efficiency of the product.

[0023] In this embodiment, a guide rod 5 is fixedly installed on one side of the positioning frame 3 away from the center of the base 1, and a positioning plate 4 is slidably installed on the guide rod 5. A V-block 6 is fixedly installed on the bottom end of the positioning plate 4. The bucket shaft sleeve 16 is placed between the positioning plates 4, and the bucket shaft sleeve 16 is supported by the V-block 6 so that the clamping plate 11 can clamp it. In addition, the V-block 6 can be suitable for bucket shaft sleeves 16 of different diameters. When the clamping plate 11 clamps bucket shaft sleeves 16 of different diameters, the bucket shaft sleeve 16 will move vertically during the clamping process. At this time, the positioning plate 4 will move synchronously with the bucket shaft sleeve 16 to avoid friction between the bucket shaft sleeve 16 and the surface of the positioning plate 4, thereby damaging the surface of the bucket shaft sleeve 16 and the positioning plate 4.

[0024] In this embodiment, the transverse drive mechanism includes a second servo motor 7, which is fixedly mounted on the left side wall of the base 1. A first bidirectional lead screw 8 is fixedly connected to the power output shaft of the second servo motor 7 through a coupling. The first bidirectional lead screw 8 is rotatably mounted on the base 1. The left and right ends of the first bidirectional lead screw 8 are respectively equipped with first lead screw nuts 9. The first lead screw nut 9 is fixedly mounted on the bottom of the positioning frame 3. The positioning frame 3 is slidably mounted on the top of the base 1 through a guide rail slider assembly. The first bidirectional lead screw 8 is driven to rotate by the second servo motor 7. The positioning frames 3 at the left and right ends of the base 1 approach or move away from each other under the action of the first bidirectional lead screw 8.

[0025] In this embodiment, the clamping plate 11 is rotatably mounted on the side of the clamping seat 10 close to the center of the fixed seat 2 through a bearing, and a first servo motor 12 is fixedly mounted on the side of the clamping seat 10 away from the clamping plate 11. The power output shaft of the first servo motor 12 is connected to the rotating shaft of the clamping plate 11. The clamping plate 11 is driven to rotate on the clamping seat 10 by the first servo motor 12, so that the clamping plate 11 can clamp the bucket shaft sleeve 16 and flip it 180 degrees.

[0026] In this embodiment, the longitudinal driving mechanism includes a third servo motor 13, which is fixedly mounted on the rear side wall of the fixed seat 2. A second bidirectional lead screw 14 is fixedly connected to the power output shaft of the third servo motor 13 through a coupling. The second bidirectional lead screw 14 is rotatably mounted on the fixed seat 2. The front and rear ends of the second bidirectional lead screw 14 are respectively equipped with second lead screw nuts 15. The second lead screw nut 15 is fixedly mounted on the bottom of the clamping seat 10. The clamping seat 10 is slidably mounted on the top of the fixed seat 2 through a guide rail slider assembly. The second bidirectional lead screw 14 is driven to rotate by the third servo motor 13, and the clamping seats 10 fixed at the front and rear ends are moved closer to or away from each other under the action of the second bidirectional lead screw 14.

[0027] In this embodiment, the end of the clamping plate 11 away from the clamping seat 10 is a "V"-shaped structure, and the clamping plate 11 can be suitable for bucket shaft sleeves 16 of different diameters, thereby improving the versatility of the tooling.

[0028] The specific working process of the utility model is as follows: when drilling the bucket shaft sleeve 16, the second servo motor drives the positioning plates 4 to approach each other, so that the spacing between the positioning plates 4 is slightly larger than the length of the bucket shaft sleeve 16. At this time, the processing personnel places the bucket shaft sleeve 16 on the V-block 6, and then the second servo motor continues to drive the positioning plates 4 to approach each other, and the bucket shaft sleeve 16 is fixed in the middle position of the base 1 through the positioning plates 4. Then the third servo motor 13 drives the clamping seat 10 to approach each other, and the bucket shaft sleeve 16 is clamped by the clamping plate 11. During the clamping process, the bucket shaft sleeve 16 will move vertically until the axis of the bucket shaft sleeve 16 is aligned with the clamping plate 1 1, the positioning plate 4 will move synchronously with the bucket shaft sleeve 16 to avoid friction between the bucket shaft sleeve 16 and the positioning plate 4 surface, and damage the surfaces of the bucket shaft sleeve 16 and the positioning plate 4. After the bucket shaft sleeve 16 is clamped and fixed by the clamping plate 11, the second servo motor 12 drives the positioning plates 4 to move away from each other, and then the first group of oil holes are processed by the drill. After the first group of oil holes are processed, the first servo motor 12 drives the clamping plate 11 to rotate, and the bucket shaft sleeve 16 is turned 180 degrees under the action of the clamping plate 11, and then the second group of oil holes are processed by the drill, so that the secondary clamping of the bucket shaft sleeve can be avoided, thereby improving the production efficiency of the product.

[0029] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. An excavator bucket sleeve positioning tool, comprising a base (1), characterized in that: A fixed seat (2) is fixedly installed at the middle of the top of the base (1), and a centering mechanism is symmetrically arranged on the left and right sides of the fixed seat (2), and the centering mechanism includes a positioning frame (3), and the positioning frame (3) is slidably installed on the base (1), and a positioning plate (4) is slidably installed on the positioning frame (3), and a transverse driving mechanism for driving the positioning frame (3) to move is provided on the base (1), and a clamping mechanism is symmetrically arranged at the front and rear ends of the top of the fixed seat (2), and the clamping mechanism includes a clamping seat (10), and the clamping seat (10) is slidably installed on the fixed seat (2), and a clamping plate (11) is rotatably installed at the top of the clamping seat (10), and a first servo motor (12) for driving the clamping plate (11) to rotate is fixedly installed on the clamping seat (10), and a longitudinal driving mechanism for driving the clamping seat (10) to move is provided on the fixed seat (2).

2. The excavator bucket sleeve positioning tool according to claim 1, characterized in that: A guide rod (5) is fixedly mounted on one side of the positioning frame (3) away from the center of the base (1), a positioning plate (4) is slidably mounted on the guide rod (5), and a V-shaped block (6) is fixedly mounted on the bottom end of the positioning plate (4).

3. The excavator bucket sleeve positioning tool according to claim 2, characterized in that: The transverse drive mechanism comprises a second servo motor (7), the second servo motor (7) is fixedly mounted on a side wall at either left or right end of the base (1), a first bidirectional lead screw (8) is fixedly connected to a power output shaft of the second servo motor (7), the first bidirectional lead screw (8) is rotatably mounted on the base (1), the left and right ends of the first bidirectional lead screw (8) are respectively matched with first lead screw nuts (9), the first lead screw nut (9) is fixedly mounted on the bottom of the positioning frame (3), and the positioning frame (3) is slidably mounted on the top of the base (1) through a guide rail slider assembly.

4. The excavator bucket sleeve positioning tool according to claim 1, characterized in that: The clamping plate (11) is rotatably mounted on a side of the clamping seat (10) close to the center of the fixed seat (2), and a first servo motor (12) is fixedly mounted on a side of the clamping seat (10) away from the clamping plate (11), and a power output shaft of the first servo motor (12) is connected to a rotating shaft of the clamping plate (11).

5. The excavator bucket sleeve positioning tool according to claim 4, characterized in that: The longitudinal drive mechanism comprises a third servo motor (13), the third servo motor (13) is fixedly mounted on a side wall at either front or rear end of the fixed seat (2), a second bidirectional lead screw (14) is fixedly connected to a power output shaft of the third servo motor (13), the second bidirectional lead screw (14) is rotatably mounted on the fixed seat (2), the front and rear ends of the second bidirectional lead screw (14) are respectively matched with second lead screw nuts (15), the second lead screw nut (15) is fixedly mounted on the bottom of the clamping seat (10), and the clamping seat (10) is slidably mounted on the top of the fixed seat (2) through a guide rail slider assembly.

6. The excavator bucket sleeve positioning tool according to claim 5, characterized in that: One end of the clamping plate (11) away from the clamping seat (10) is a "V"-shaped structure.

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