Shaft part machining tool

By employing upper and lower rectangular frames and a hydraulic motor-driven transmission system in the machining fixtures for shaft parts, the problems of high machining difficulty, low efficiency, and unstable precision during the drilling process of shaft parts have been solved, achieving high-precision and high-efficiency drilling results.

CN223971301UActive Publication Date: 2026-03-06合肥卓沫智能科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In the traditional drilling process of shaft parts, due to their varying shapes and sizes, the processing is difficult, the drilling efficiency is low, and the accuracy is unstable.

Method used

It adopts upper and lower rectangular frames with parallel distribution, and has a roller conveyor component inside. Combined with a hydraulic cylinder, a motor-driven bidirectional threaded rod and a sprocket transmission system, it can achieve limit clamping and precise transmission of shaft parts, and adapt to the processing needs of shaft parts of different specifications.

Benefits of technology

It improves the accuracy and stability of the drilling process, adapts to the processing needs of shaft parts of different specifications, and enhances processing efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of part machining, and discloses a shaft part machining tool which comprises an upper rectangular frame and a lower rectangular frame which are vertically distributed in parallel, roller type conveying assemblies are arranged in the upper rectangular frame and the lower rectangular frame correspondingly, a lower plate is arranged on the back face of the lower rectangular frame, round rods are arranged at the two ends of the top face of the lower plate correspondingly, and an upper plate is arranged on the top faces of the two round rods; a second hydraulic cylinder is arranged on the top face of the upper plate, the output end of the second hydraulic cylinder penetrates through the upper plate and extends downwards to be connected with a movable plate, the two ends of the lower rectangular frame are each provided with two supports, a two-way threaded rod and a guide rod are arranged between the two supports, the two ends of the two-way threaded rod and the two ends of the guide rod are sleeved with rectangular blocks, and fixing frames are arranged on the top faces of the rectangular blocks; the interior of the fixing frame is connected with a roller through a shaft rod. The drilling device can be adjusted according to the shapes and sizes of the shaft parts so as to meet the machining requirements of the shaft parts of different specifications, and meanwhile the precision and stability in the drilling process are improved.
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Description

Technical Field

[0001] This application relates to the field of parts processing, and in particular to a tooling for processing shaft-type parts. Background Technology

[0002] Shafts are a common type of part in mechanical products, and their machining accuracy and surface quality have a significant impact on the performance and service life of these products. However, in the traditional drilling process for shafts, the varying shapes and sizes of shafts, coupled with the high precision requirements for drilling positions, make machining quite difficult. Furthermore, traditional drilling methods often suffer from low drilling efficiency and unstable accuracy. Therefore, this invention proposes a new machining fixture and drilling method for shafts to solve these problems. Utility Model Content

[0003] To address the challenges of machining shaft parts in traditional drilling processes, which are difficult due to the varying shapes and sizes of shaft parts and the high precision requirements of drilling positions, as well as the low efficiency and unstable accuracy of traditional drilling methods, this application provides a machining fixture for shaft parts.

[0004] The technical solution for machining shaft-type parts provided in this application is as follows:

[0005] A machining fixture for shaft parts includes an upper rectangular frame and a lower rectangular frame arranged in parallel. Both the upper and lower rectangular frames have roller conveying components inside. The back of the lower rectangular frame has a lower plate. Both ends of the top surface of the lower plate have round rods. An upper plate is located on the top surface of the two round rods. A second hydraulic cylinder is located on the top surface of the upper plate. The output end of the second hydraulic cylinder passes through the upper plate and extends downwards to connect to a movable plate. Both ends of the lower rectangular frame have two supports. A bidirectional threaded rod and a guide rod are provided between the two supports. Rectangular blocks are fitted at both ends of the bidirectional threaded rod and the guide rod. A fixed frame is located on the top surface of the rectangular blocks. A roller is connected inside the fixed frame via a shaft.

[0006] Preferably, the movable plate is connected to the back of the upper rectangular frame, and both ends of the movable plate are slidably connected to two round rods respectively.

[0007] Preferably, one end of each of the two bidirectional threaded rods passes through the bracket and is fitted with a sprocket extending outward. The two sprockets are connected by a chain drive. The other end of one of the bidirectional threaded rods passes through the bracket and is connected to the output end of a second motor extending outward.

[0008] Preferably, the two opposing supports are arranged symmetrically, and the two opposing fixing frames are arranged symmetrically.

[0009] Preferably, the bottom surface of the lower rectangular frame is provided with support plates at both ends, and the back of the two support plates is provided with a horizontal plate. One end of the top surface of the horizontal plate is connected to a concave frame by screws. The top surface of the concave frame is provided with a first hydraulic cylinder. The output end of the first hydraulic cylinder passes through the concave frame and extends downward to be connected to a sliding plate.

[0010] Preferably, the concave frame has a through opening on its side, and a slide rod is provided inside the opening. One end of the slide rod passes through the slide rod and extends outward to connect to a support plate. A first motor is provided on the top surface of the support plate, and the output end of the first motor passes through the support plate and extends downward to connect to a drill rod.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] 1. The output end of the second hydraulic cylinder drives the movable plate to move downward along the vertical direction of the round rod. The downward movement of the movable plate drives the upper rectangular frame and the roller transmission assembly inside it to move downward toward the lower rectangular frame. By adjusting the distance between the upper and lower rectangular frames, shaft parts of different diameters can be clamped and limited. The roller transmission assembly in the upper rectangular frame and the roller transmission assembly in the lower rectangular frame can be used to transmit shaft parts, enabling drilling operations at different positions of shaft parts.

[0013] 2. The output of the second motor drives the bidirectional threaded rod and sprocket to rotate. The rotation of the sprocket drives another sprocket and its bidirectional threaded rod to rotate via a chain. The rotation of the two bidirectional threaded rods causes two rectangular blocks on them to move relative to each other along the horizontal direction of the guide rod. The relative movement of the two rectangular blocks causes the fixed frame and roller on them to move relative to each other. This can be adjusted according to the shape and size of the shaft parts to meet the processing requirements of shaft parts of different specifications, and at the same time improves the accuracy and stability of the drilling process. Attached Figure Description

[0014] Figure 1 This is a structural front view of an embodiment of the application;

[0015] Figure 2 This is a rear view of the structure of an embodiment of the application;

[0016] Figure 3 This is a structural schematic diagram of the bidirectional threaded rod and guide rod in the embodiment of the application.

[0017] Explanation of reference numerals in the attached drawings: 1. Lower rectangular frame; 2. Roller conveyor assembly; 3. Bracket; 4. Upper rectangular frame; 5. Support plate; 6. Horizontal plate; 7. Concave frame; 8. Slide rod; 9. First hydraulic cylinder; 10. Slide plate; 11. First motor; 12. Support plate; 13. Second hydraulic cylinder; 14. Upper plate; 15. Lower plate; 16. Round rod; 17. Movable plate; 18. Guide rod; 19. Bidirectional threaded rod; 20. Rectangular block; 21. Fixed frame; 22. Roller; 23. Second motor; 24. Sprocket. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0019] This application discloses a machining fixture for shaft-type parts, referring to... Figures 1-2 The system includes an upper rectangular frame 4 and a lower rectangular frame 1 arranged in parallel. Both the upper rectangular frame 4 and the lower rectangular frame 1 are equipped with roller conveyor components 2. A lower plate 15 is fixedly mounted on the back of the lower rectangular frame 1. Two round rods 16 are fixedly mounted on both ends of the top surface of the lower plate 15. An upper plate 14 is fixedly mounted on the top surface of the two round rods 16. A second hydraulic cylinder 13 is mounted on the top surface of the upper plate 14. The output end of the second hydraulic cylinder 13 passes through the upper plate 14 and extends downwards to connect to a movable plate 17. The movable plate 17 is fixedly connected to the back of the upper rectangular frame 4, and both ends of the movable plate 17 are respectively connected to the two round rods 16. The sliding connection is achieved by driving the movable plate 17 to move downward along the vertical direction of the round rod 16 through the output end of the second hydraulic cylinder 13. The downward movement of the movable plate 17 drives the upper rectangular frame 4 and the roller transmission assembly 2 inside it to move downward toward the lower rectangular frame 1. By adjusting the distance between the upper rectangular frame 4 and the lower rectangular frame 1, shaft parts of different diameters can be clamped and limited. The roller transmission assembly 2 inside the upper rectangular frame 4 and the roller transmission assembly 2 inside the lower rectangular frame 1 can be used to transmit shaft parts, enabling drilling operations at different positions of shaft parts.

[0020] Reference Figure 1 and Figure 3Two supports 3 are fixedly installed at both ends of the lower rectangular frame 1. The two opposing supports 3 are arranged symmetrically. A bidirectional threaded rod 19 and a guide rod 18 are provided between the two supports 3. The two ends of the bidirectional threaded rod 19 are rotatably connected to the supports 3, and the two ends of the guide rod 18 are fixedly connected to the supports 3. A rectangular block 20 is sleeved on both ends of the bidirectional threaded rod 19 and the guide rod 18. One end of the rectangular block 20 is threadedly connected to the bidirectional threaded rod 19, and the other end is slidably connected to the guide rod 18. A fixing frame 21 is fixedly installed on the top surface of the rectangular block 20. The two opposing fixing frames 21 are arranged symmetrically. A roller 22 is movably connected inside the fixing frame 21 through a shaft. One end of each of the two bidirectional threaded rods 19 passes through the support 3 and extends outward, each fixedly sleeved with a sprocket 24. The sprockets 24 are connected by a chain drive. One end of a double-threaded rod 19 passes through the bracket 3 and extends outward to connect to the output end of a second motor 23. The output end of the second motor 23 drives the double-threaded rod 19 and the sprocket 24 to rotate. The rotation of the sprocket 24 drives the other sprocket 24 and the double-threaded rod 19 on it to rotate through the chain. The rotation of the two double-threaded rods 19 causes the two rectangular blocks 20 on them to move relative to each other in the horizontal direction along the guide rod 18. The relative movement of the two rectangular blocks 20 causes the fixed frame 21 and the roller 22 on them to move relative to each other. This can be adjusted according to the shape and size of the shaft parts to meet the processing requirements of shaft parts of different specifications, and also improves the accuracy and stability of the drilling process.

[0021] Reference Figure 1 Support plates 5 are fixed at both ends of the bottom surface of the lower rectangular frame 1. A horizontal plate 6 is fixed on the back of the two support plates 5. A concave frame 7 is connected to the top of the horizontal plate 6 by screws. A first hydraulic cylinder 9 is provided on the top surface of the concave frame 7. The output end of the first hydraulic cylinder 9 passes through the concave frame 7 and extends downward to connect to a sliding plate 10. An opening is provided through the side of the concave frame 7. A sliding rod 8 is fixed inside the opening. One end of the sliding plate 10 passes through the sliding rod 8 and extends outward to connect to a support plate 12. The sliding plate 10 and the sliding rod 8 are slidably connected. A first motor 11 is provided on the top surface of the support plate 12. The output end of the first motor 11 passes through the support plate 12 and extends downward to connect to a drill rod. The output end of the first hydraulic cylinder 9 drives the sliding plate 10 and the support plate 12 to move downward along the vertical direction of the sliding rod 8. At the same time, the output end of the first motor 11 drives the drill rod to rotate, thereby realizing the drilling operation on the outer wall of the part.

[0022] The implementation principle of a shaft-type part machining fixture according to an embodiment of this application is as follows: In use, the part is first placed on the roller conveyor assembly 2 within the lower rectangular frame 1. Then, the output end of the second hydraulic cylinder 13 drives the movable plate 17 to move downwards along the vertical direction of the round rod 16. The downward movement of the movable plate 17 drives the upper rectangular frame 4 and the roller conveyor assembly 2 within it to move downwards towards the lower rectangular frame 1 until the roller conveyor assembly 2 within the upper rectangular frame 4 comes into contact with the part. Subsequently, the output end of the second motor 23 drives the bidirectional threaded rod 19 and sprocket 24 on it to rotate. The rotation of the sprocket 24 drives another sprocket 24 and its bidirectional threaded rod via a chain. The threaded rod 19 rotates, and the rotation of the two bidirectional threaded rods 19 drives the two rectangular blocks 20 on them to move relative to each other along the horizontal direction of the guide rod 18. The relative movement of the two rectangular blocks 20 drives the fixed frame 21 and the roller 22 on them to move relative to each other until the rollers 22 at both ends are in contact with the part. Then, the part is transferred through the roller transfer assembly 2 in the upper rectangular frame 4 and the roller transfer assembly 2 in the lower rectangular frame 1. Finally, the output end of the first hydraulic cylinder 9 drives the slide plate 10 and the support plate 12 to move downward along the vertical direction of the slide rod 8. At the same time, the output end of the first motor 11 drives the drill rod to rotate, so as to realize the drilling operation on the outer wall of the part.

[0023] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0024] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0025] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A shaft part machining tooling device, comprising an upper rectangular frame (4) and a lower rectangular frame (1) arranged in parallel, characterized in that: The inside of the upper rectangular frame (4) and the lower rectangular frame (1) is equipped with a roller type transmission assembly (2), and the back of the lower rectangular frame (1) is equipped with a lower plate (15), both ends of the top surface of the lower plate (15) are equipped with a round rod (16), the top surface of the two round rods (16) is equipped with an upper plate (14), the top surface of the upper plate (14) is equipped with a second hydraulic cylinder (13), the output end of the second hydraulic cylinder (13) penetrates the upper plate (14) and extends downwardly and is connected with a movable plate (17), both ends of the lower rectangular frame (1) are equipped with two supports (3), a bidirectional threaded rod (19) and a guide rod (18) are arranged between the two supports (3), both ends of the bidirectional threaded rod (19) and the guide rod (18) are sleeved with a rectangular block (20), the top surface of the rectangular block (20) is equipped with a fixing frame (21), the inside of the fixing frame (21) is connected with a roller (22) through a shaft rod.

2. The shaft part machining tooling of claim 1, wherein: The movable plate (17) is connected with the back of the upper rectangular frame (4), and both ends of the movable plate (17) are slidably connected with the two round rods (16) respectively.

3. The shaft part machining tooling of claim 1, wherein: One end of the two bidirectional threaded rods (19) penetrates the support (3) and extends outwardly and is sleeved with a chain wheel (24), the two chain wheels (24) are connected through a chain transmission, and the other end of one of the bidirectional threaded rods (19) penetrates the support (3) and extends outwardly and is connected with the output end of the second motor (23).

4. The shaft part machining tooling fixture according to claim 1, characterized in that: The opposite two supports (3) are symmetrically arranged, and the opposite two fixing frames (21) are symmetrically arranged.

5. The shaft part machining tooling of claim 1, wherein: Both ends of the bottom surface of the lower rectangular frame (1) are equipped with a support plate (5), the back of the two support plates (5) is equipped with a horizontal plate (6), one end of the top surface of the horizontal plate (6) is connected with a concave frame (7) through a screw, the top surface of the concave frame (7) is equipped with a first hydraulic cylinder (9), the output end of the first hydraulic cylinder (9) penetrates the concave frame (7) and extends downwardly and is connected with a sliding plate (10).

6. The shaft part machining tooling of claim 5, wherein: The side surface of the concave frame (7) is provided with an opening, the inside of the opening is equipped with a sliding rod (8), one end of the sliding plate (10) penetrates the sliding rod (8) and extends outwardly and is connected with a support plate (12), the top surface of the support plate (12) is equipped with a first motor (11), the output end of the first motor (11) penetrates the support plate (12) and extends downwardly and is connected with a drill rod.