Valve sleeve deep hole machining device

By using a multi-point clamping mechanism and an adjustable drilling system, the accuracy problem caused by insufficient clamping force in the deep hole machining of valve sleeves is solved, realizing stable clamping and precise machining of valve sleeves in multiple directions, thereby improving machining accuracy and quality.

CN223863350UActive Publication Date: 2026-02-03HUAZHENG LVNENG PRECISION TECH (HENAN) CO LTD
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Patent Information

Application Number
CN202520320313.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-02-03
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

In existing valve sleeve deep hole machining equipment, the valve sleeve is prone to move and rotate in the axial direction during the machining process, which leads to a decrease in machining accuracy and insufficient clamping force, which may cause the deep hole position to be misaligned and the machining tool to be damaged.

Method used

A multi-point clamping mechanism is adopted, which applies uniform clamping force to the valve sleeve from multiple directions through an electric push rod and linkage system. The slider and clamping block slide in the guide groove to ensure the stability of the valve sleeve in all directions. Combined with an adjustable drilling machine and cylinder system, stable clamping and precise machining are achieved.

Benefits of technology

This improves the precision and stability of deep hole machining of valve sleeves, reduces the risk of displacement and wobbling of valve sleeves during machining, and ensures the accuracy of deep hole positioning and machining quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223863350U_ABST
Patent Text Reader

Abstract

The utility model discloses a valve sleeve deep hole machining device which comprises a machine box, leakage holes evenly distributed are formed in the upper surface of the machine box, a protective cover is connected to the upper end of the machine box through bolts, supporting rods are arranged between the left inner wall and the right inner wall of the protective cover respectively, an adjustable drilling machine is arranged in the protective cover, and the valve sleeve deep hole machining device further comprises a clamping mechanism. The clamping mechanism comprises a supporting plate, guide grooves, sliding grooves, sliding blocks and clamping blocks, the supporting plate is arranged in the middle between the two supporting rods, the guide grooves which are evenly distributed are formed in the upper end of the supporting plate, the sliding grooves are formed in the inner walls of the guide grooves correspondingly, the sliding blocks are slidably connected between the two sliding grooves located in the same guide groove correspondingly, and the clamping blocks are arranged in the sliding grooves; according to the deep hole machining device for the valve sleeve, uniform clamping force can be applied to the valve sleeve from multiple directions, the valve sleeve is restrained in all the directions, movement and rotation of the valve sleeve are effectively limited, it is guaranteed that the position of the valve sleeve is stable in the machining process, and the machining precision is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of valve sleeve deep hole processing equipment, specifically a valve sleeve deep hole processing device. Background Technology

[0002] Valve sleeves are an important component of valves in hydraulic and pneumatic systems. They are usually fitted over the valve core and other components, and serve to support, guide, and seal. In many hydraulic and pneumatic systems, valve sleeves need to have specific deep holes as fluid channels to achieve fluid control and transmission. To ensure smooth fluid flow, valve sleeve deep hole machining equipment is often used to drill holes in the valve sleeve.

[0003] The existing valve sleeve deep hole machining device first places the valve sleeve on the worktable, and then controls the electric push rods on both sides to drive the clamping blocks to move towards the center to clamp the valve sleeve. Then, the drilling equipment is controlled to drill holes in the fixed valve sleeve.

[0004] Existing valve sleeve deep hole machining devices may be subjected to axial forces during deep hole machining. Clamping from both sides alone is insufficient to effectively restrict the axial movement of the valve sleeve, which affects machining accuracy. For example, the axis of the deep hole may shift, affecting the performance of the valve sleeve. Clamping from both sides cannot provide sufficient torque resistance. Once the valve sleeve rotates, the machining position will deviate, resulting in inaccurate deep hole position and even damage to the machining tool. Therefore, we propose a valve sleeve deep hole machining device. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a valve sleeve deep hole machining device that can apply uniform clamping force to the valve sleeve from multiple directions, so that the valve sleeve is constrained in all directions, effectively restricting the movement and rotation of the valve sleeve, ensuring the stability of the valve sleeve position during the machining process, improving the machining accuracy, and effectively solving the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a valve sleeve deep hole processing device, including a machine housing, the upper surface of which is provided with uniformly distributed perforated holes, a protective cover connected to the upper end of the machine housing by bolts, support rods respectively provided between the left and right inner walls of the protective cover, an adjustable drilling machine provided inside the protective cover, and a clamping mechanism.

[0007] Clamping mechanism: It includes a support plate, guide groove, slide groove, slider and clamping block. The support plate is located in the middle between two support rods. The upper end of the support plate is provided with evenly distributed guide grooves. The inner wall of the guide groove is provided with slide grooves. Sliders are slidably connected between two slide grooves located in the same guide groove. Clamping blocks are fixedly connected to the upper surface of the sliders. It can apply a uniform clamping force to the valve sleeve from multiple directions, so that the valve sleeve is constrained in all directions, effectively restricting the movement and rotation of the valve sleeve, ensuring the stability of the valve sleeve position during processing, and improving processing accuracy.

[0008] Furthermore, a microcontroller is provided on the front side of the protective cover. The input terminal of the microcontroller is electrically connected to an external power source, and the input terminal of the drilling machine is electrically connected to the output terminal of the microcontroller, providing electrical connections for various electrical components.

[0009] Furthermore, the clamping mechanism also includes connecting rods, U-shaped seats, and adjusting plates. The bottom end of the slider is rotatably connected to the connecting rods, and the bottom end of the connecting rods is rotatably connected to the U-shaped seats via pins. The bottom ends of the four U-shaped seats are all fixedly connected to the top end of an adjusting plate to achieve stable clamping.

[0010] Furthermore, the clamping mechanism also includes an electric push rod, which is disposed on the lower surface of the support plate. The bottom end of the telescopic end of the electric push rod is fixedly connected to the top end of the adjustment plate, and the input end of the electric push rod is electrically connected to the output end of the microcontroller to provide clamping drive.

[0011] Furthermore, the rear inner wall of the protective cover is provided with a mounting plate, and the front side of the mounting plate is provided with telescopic rod one. The front ends of the telescopic rods one are fixedly connected to the rear side of a mounting base. The front side of the mounting plate is provided with cylinder one. The front end of the telescopic end of cylinder one is fixedly connected to the rear side of the mounting base. The bottom end of the mounting base is provided with telescopic rod two. The bottom ends of the two telescopic rods two are fixedly connected to the upper side of a mounting frame. The mounting frame is provided with a drilling machine. The bottom end of the mounting base is provided with cylinder two. The bottom end of the telescopic end of cylinder two is fixedly connected to the upper side of the mounting base. The air inlets of cylinder one and cylinder two are connected to the air outlet of an external air pump to realize the adjustment of the drilling machine.

[0012] Furthermore, a brush rod is slidably connected inside the protective cover, a slide rod is provided on the right side between the front and rear inner walls of the protective cover, and a lead screw is rotatably connected on the left side between the front and rear inner walls of the protective cover. The left end of the brush rod is threadedly connected to the lead screw, and the right end of the brush rod is slidably connected to the outside of the slide rod, which facilitates cleaning of internal waste materials.

[0013] Furthermore, a right-angle motor is fixedly connected to the left side of the front side of the protective cover. The rear end of the output shaft of the right-angle motor is fixedly connected to the front end of the lead screw. The input end of the right-angle motor is electrically connected to the output end of the microcontroller to provide a drive for waste cleaning.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This valve sleeve deep hole machining device has the following advantages:

[0015] The electric push rod pushes the adjusting plate downward, causing the connecting rod inside the U-shaped seat at the top of the adjusting plate to pull the slider to move centripetally inside the slide groove. This causes the slider to drive the four clamping blocks to move towards each other synchronously, achieving stable clamping of the valve sleeve. Compared to clamping from only the two sides, the four clamping blocks can better resist the axial force, radial force, and torque generated during the machining process, reducing the risk of displacement or shaking of the valve sleeve during machining, ensuring the relative positional accuracy between the deep hole and other parts of the valve sleeve, and improving the machining quality of the valve sleeve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram on the right side of the present invention;

[0018] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure for adjusting the drilling machine of this utility model.

[0020] In the diagram: 1. Chassis, 2. Protective cover, 3. Drilling machine, 4. Support rod, 5. Microcontroller, 6. Clamping mechanism, 61. Support plate, 62. Guide groove, 63. Slide groove, 64. Slider, 65. Clamping block, 66. Connecting rod, 67. U-shaped seat, 68. Adjusting plate, 69. Electric push rod, 7. Brush rod, 8. Lead screw, 9. Slide rod, 10. Right angle motor, 11. Mounting plate, 12. Telescopic rod one, 13. Cylinder one, 14. Mounting seat, 15. Telescopic rod two, 16. Mounting bracket, 17. Cylinder two. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4This embodiment provides a technical solution: a valve sleeve deep hole processing device, including a housing 1, with uniformly distributed perforations on the upper surface of the housing 1, a protective cover 2 bolted to the upper end of the housing 1, support rods 4 respectively provided between the left and right inner walls of the protective cover 2, an adjustable drilling machine 3 provided inside the protective cover 2, and a clamping mechanism 6. A microcontroller 5 is provided on the front side of the protective cover 2, the input end of the microcontroller 5 is electrically connected to an external power source, the input end of the drilling machine 3 is electrically connected to the output end of the microcontroller 5, and a mounting plate 11 is provided on the rear inner wall of the protective cover 2, with extension rods 4 respectively provided on the front side of the mounting plate 11. Telescopic rod 12, the front ends of the telescopic ends of both telescopic rods 12 are fixedly connected to the rear side of a mounting base 14. A cylinder 13 is provided on the front side of the mounting plate 11, the front end of the telescopic end of the cylinder 13 is fixedly connected to the rear side of the mounting base 14. Telescopic rods 15 are respectively provided at the bottom of the mounting base 14, the bottom ends of both telescopic rods 15 are fixedly connected to the upper side of a mounting frame 16. A drilling machine 3 is provided inside the mounting frame 16. A cylinder 17 is provided at the bottom of the mounting base 14, the bottom end of the telescopic end of the cylinder 17 is fixedly connected to the upper side of the mounting base 14. The air intake of cylinders 13 and 17... All holes are connected to the air outlet of the external air pump. A brush rod 7 is slidably connected inside the protective cover 2. A slide rod 9 is located on the right side between the front and rear inner walls of the protective cover 2. A lead screw 8 is rotatably connected on the left side between the front and rear inner walls of the protective cover 2. The left end of the brush rod 7 is threadedly connected to the lead screw 8, and the right end of the brush rod 7 is slidably connected to the outside of the slide rod 9. A right-angle motor 10 is fixedly connected to the left side of the front side of the protective cover 2. The rear end of the output shaft of the right-angle motor 10 is fixedly connected to the front end of the lead screw 8. The input end of the right-angle motor 10 is electrically connected to the output end of the microcontroller 5. Then, cylinder 13 starts working, pushing the mounting base 14 and... The areas to be drilled correspond to each other. Under the control of the microcontroller 5, the drilling machine 3 starts to run. The output shaft will drive the drill bit to rotate at high speed. The cylinder 17 starts to work, pushing the mounting bracket 16 to move the drilling machine 3 down to drill the valve sleeve. After the processing is completed, the right-angle motor 10 starts to run. The output shaft will drive the lead screw 8 to rotate, so that the meshing brush rod 7 moves inside the protective cover 2 under the support and guidance of the slide rod 9 to sweep away the waste left on the upper part of the machine box 1. The waste will fall into the inside of the machine box 1 through the drain hole opened at the upper part of the machine box 1. The waste inside the machine box 1 is cleaned regularly.

[0023] Clamping mechanism 6 includes a support plate 61, guide grooves 62, sliding grooves 63, sliders 64, and clamping blocks 65. The support plate 61 is located in the middle between two support rods 4. The upper end of the support plate 61 has evenly distributed guide grooves 62. The inner wall of the guide grooves 62 is provided with sliding grooves 63. Sliders 64 are slidably connected between two sliding grooves 63 located in the same guide groove 62. Clamping blocks 65 are fixedly connected to the upper surface of the sliders 64. The clamping mechanism 6 also includes connecting rods 66, U-shaped seats 67, and adjusting plates 68. The bottom end of the sliders 64 is rotatably connected to the connecting rods 66. The bottom end of the connecting rods 66 is rotatably connected to the U-shaped seats 67 through pins. The bottom ends of the four U-shaped seats 67 are fixedly connected to the top end of an adjusting plate 68. The clamping mechanism 6 also includes an electric push rod 69, which is located on the lower surface of the support plate 61. The bottom end of the telescopic end of the electric push rod 69 is fixedly connected to the top end of the adjusting plate 68. The input end of the electric push rod 69 is electrically connected to the output end of the microcontroller 5. When the valve sleeve needs to be machined with a deep hole, the valve sleeve to be machined is first placed in the middle of the support plate 61. Through the control of the microcontroller 5, the electric push rod 69 starts to operate, and the telescopic end will push the adjusting plate 68 to start to move downward, so that the U-shaped seat 67 drives the internally rotating connecting rod 66 to move downward, so that the connecting rod 66 pulls the corresponding slider 64 to slide centripetally inside the slide groove 63, so that the four clamping blocks 65 move centripetally closer inside the guide groove 62, and stably clamp the valve sleeve to be machined.

[0024] The working principle of the valve sleeve deep hole processing device provided by this utility model is as follows: When the valve sleeve needs to be processed into a deep hole, the valve sleeve to be processed is first placed in the middle of the support plate 61. Through the control of the single-chip microcomputer 5, the electric push rod 69 starts to operate, and the telescopic end pushes the adjusting plate 68 to move downward, so that the U-shaped seat 67 drives the internal rotating connecting rod 66 to move downward, so that the connecting rod 66 pulls the corresponding slider 64 to slide centripetally inside the sliding groove 63, so that the four clamping blocks 65 move centripetally closer inside the guide groove 62, and stably clamp the valve sleeve to be processed. Then, the external air pump drives the cylinder 13 to start working, pushing the mounting base 1 4 corresponds to the area to be drilled. Under the control of the microcontroller 5, the drilling machine 3 starts to operate. The output shaft will drive the drill bit to rotate at high speed. The external air pump drives the cylinder 17 to start working, pushing the mounting bracket 16 to move the drilling machine 3 down to drill the valve sleeve. After the processing is completed, the right-angle motor 10 starts to operate. The output shaft will drive the lead screw 8 to start to rotate, so that the meshing brush rod 7 moves inside the protective cover 2 under the support and guidance of the slide rod 9 to sweep away the waste left on the upper part of the machine box 1. The waste will fall into the inside of the machine box 1 through the drain hole opened at the upper part of the machine box 1. The waste inside the machine box 1 is cleaned regularly.

[0025] It is worth noting that the microcontroller 5 disclosed in the above embodiments can be a PI C10F200, the electric actuator 69 can be an AFG075-380, and the right-angle motor 10 can be a RAX-271E. The microcontroller 5 controls the operation of the electric actuator 69 and the right-angle motor 10 using methods commonly used in the prior art.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A valve sleeve deep hole machining device, comprising a housing (1), wherein the upper surface of the housing (1) is provided with uniformly distributed perforations, a protective cover (2) is bolted to the upper end of the housing (1), support rods (4) are respectively provided between the left and right inner walls of the protective cover (2), and an adjustable drilling machine (3) is provided inside the protective cover (2), characterized in that: It also includes a clamping mechanism (6); Clamping mechanism (6): It includes a support plate (61), a guide groove (62), a sliding groove (63), a slider (64), and a clamping block (65). The support plate (61) is located in the middle between two support rods (4). The upper end of the support plate (61) is provided with a uniformly distributed guide groove (62). The inner wall of the guide groove (62) is provided with a sliding groove (63). A slider (64) is slidably connected between two sliding grooves (63) located in the same guide groove (62). A clamping block (65) is fixedly connected to the upper surface of the slider (64).

2. The valve sleeve deep hole machining device according to claim 1, characterized in that: The front side of the protective cover (2) is equipped with a microcontroller (5). The input end of the microcontroller (5) is electrically connected to an external power source, and the input end of the drilling machine (3) is electrically connected to the output end of the microcontroller (5).

3. The valve sleeve deep hole machining device according to claim 2, characterized in that: The clamping mechanism (6) also includes a connecting rod (66), a U-shaped seat (67) and an adjusting plate (68). The bottom end of the slider (64) is rotatably connected to the connecting rod (66), and the bottom end of the connecting rod (66) is rotatably connected to the U-shaped seat (67) through a pin. The bottom ends of the four U-shaped seats (67) are all fixedly connected to the top end of an adjusting plate (68).

4. The valve sleeve deep hole machining device according to claim 3, characterized in that: The clamping mechanism (6) also includes an electric push rod (69), which is disposed on the lower surface of the support plate (61). The bottom end of the telescopic end of the electric push rod (69) is fixedly connected to the top end of the adjustment plate (68), and the input end of the electric push rod (69) is electrically connected to the output end of the microcontroller (5).

5. The valve sleeve deep hole machining device according to claim 1, characterized in that: The protective cover (2) has a mounting plate (11) on its rear inner wall. The front side of the mounting plate (11) is provided with telescopic rods (12). The front ends of the telescopic rods (12) are fixedly connected to the rear side of a mounting base (14). The front side of the mounting plate (11) is provided with cylinders (13). The front end of the telescopic rods (13) is fixedly connected to the rear side of the mounting base (14). The bottom end of the mounting base (14) is provided with telescopic rods (15). The bottom ends of the two telescopic rods (15) are fixedly connected to the upper side of a mounting frame (16). The mounting frame (16) is provided with a drilling machine (3). The bottom end of the mounting base (14) is provided with cylinders (17). The bottom end of the telescopic rods (17) is fixedly connected to the upper side of the mounting base (14). The air inlets of cylinders (13) and cylinders (17) are connected to the air outlet of an external air pump.

6. The valve sleeve deep hole machining device according to claim 2, characterized in that: The protective cover (2) is slidably connected to the inside of a brush rod (7), a slide rod (9) is provided on the right side between the front and rear inner walls of the protective cover (2), a lead screw (8) is rotatably connected on the left side between the front and rear inner walls of the protective cover (2), the left end of the brush rod (7) is threadedly connected to the lead screw (8), and the right end of the brush rod (7) is slidably connected to the outside of the slide rod (9).

7. The valve sleeve deep hole machining device according to claim 6, characterized in that: A right-angle motor (10) is fixedly connected to the left side of the front side of the protective cover (2). The rear end of the output shaft of the right-angle motor (10) is fixedly connected to the front end of the lead screw (8). The input end of the right-angle motor (10) is electrically connected to the output end of the microcontroller (5).