Hydraulic tailstock

By incorporating a combination of a cleaning pad and a fluid level sensor on the hydraulic tailstock, the problems of high friction and insufficient lubricant between the hydraulic tailstock and the CNC machine tool are solved, achieving the effects of reduced friction and automatic lubrication replenishment.

CN224087989UActive Publication Date: 2026-04-07JIANGSU PROVINCE XUZHOU TECHNICIAN INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The hydraulic tailstock experiences high friction with the CNC machine tool during movement, and the lubricant replenishment is not automatic, which can easily lead to insufficient lubrication after prolonged use.

Method used

A hydraulic tailstock was designed, comprising a combination of a cleaning pad, an electric actuator, a liquid level sensor, and a solenoid valve. The cleaning pad absorbs lubricant to reduce friction, and the liquid level sensor automatically controls the replenishment of lubricant.

Benefits of technology

It reduces the friction between the hydraulic tailstock and the CNC machine tool, improves the smoothness of movement, and enables automatic replenishment of lubricant, avoiding the problem of insufficient lubrication.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224087989U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of machine tool tail bases, in particular to a hydraulic tail base which comprises a tail base body, an assembly block, an electric push rod and a circular ring are arranged on the tail base body, the assembly block is detachably installed at the bottom of the tail base body, the electric push rod is fixedly connected to the upper portion of one side of the tail base body, and the circular ring is fixedly connected to one side of the tail base body and located below the electric push rod. The assembly block is provided with a cleaning pad, a hole and a storage tank, the cleaning pad is fixedly connected into one side of the assembly block, and the hole is located in one end of the assembly block. According to the hydraulic tailstock, the friction force generated between the hydraulic tailstock and the numerical control machine tool in the moving process is reduced, the loss between the hydraulic tailstock and the numerical control machine tool due to long-time use is reduced, and the smoothness of the hydraulic tailstock in the moving process is improved.
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Description

Technical Field

[0001] This utility model relates to the field of machine tool tailstock technology, specifically a hydraulic tailstock. Background Technology

[0002] In machining equipment, lathes, grinding machines, and other mechanical equipment must be equipped with tailstocks for mounting and positioning workpieces. According to patent 202120777201.8, a hydraulic tailstock includes a base, a movable seat on top of the base, a mounting seat on top of the movable seat, a hydraulic cylinder on one side of the mounting seat, and a T-shaped rail and a fixing plate fixedly connected to the top of the base. However, the hydraulic tailstock generates significant friction with the CNC machine tool during movement, increasing wear and tear over long-term use, reducing the smoothness of movement, and failing to automatically replenish the lubricating fluid in the storage tank, leading to insufficient lubricating fluid over extended periods. Therefore, a new technical solution is needed to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide a hydraulic tailstock that solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic tailstock, comprising a tailstock, an assembly block, an electric actuator, and a ring. The assembly block is detachably mounted on the bottom of the tailstock. The electric actuator is fixedly connected to the upper side of one side of the tailstock. The ring is fixedly connected to one side of the tailstock and located below the electric actuator. The assembly block is provided with a cleaning pad, a hole, and a storage tank. The cleaning pad is fixedly connected to one side of the assembly block. The hole is located at one end of the assembly block and communicates with the storage tank. The storage tank is located inside the assembly block. A first liquid level sensor is fixedly connected to one side of the storage tank, and a second liquid level sensor is fixedly connected to the other side of the storage tank. The storage tank is detachably installed inside the ring. One end of the storage tank is connected to a pipe via a solenoid valve, and the other end of the storage tank is sealed with a cover plate. The electric actuator... The output end is connected to a column block via a connecting rod. The detection ends of the first and second liquid level sensors are both located inside the storage tank and are electrically connected to a controller via wires. Two cleaning pads are provided and symmetrically arranged on both sides of the assembly block. One side of the cleaning pad is on the same horizontal plane as the outer surface of the assembly block, and the other side of the cleaning pad is located inside the assembly block and extends into the storage tank. One end of the solenoid valve is sealed to the bottom of the storage tank, one end of the tube is sealed to the hole, and the other end of the tube is sealed to the other end of the solenoid valve. One end of the connecting rod is fixedly connected to the upper end of the column block, and the other end of the connecting rod passes through the cover plate and is fixedly connected to the output end of the electric actuator. The outer diameter of the column block is adapted to the inner diameter of the storage tank and is movably connected to the inner wall of the storage tank.

[0005] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0006] 1. The lubricant absorbed by the cleaning pad will adhere to the I-shaped connection and the CNC machine tool, thereby reducing the friction between the hydraulic tailstock and the CNC machine tool during the movement, reducing the wear and tear between the hydraulic tailstock and the CNC machine tool after long-term use, and improving the smoothness of the hydraulic tailstock during the movement process.

[0007] 2. By combining the first liquid level sensor, the second liquid level sensor, the electric actuator, the connecting rod, and the column block, the automatic replenishment of lubricating fluid in the storage tank is effectively realized, avoiding the phenomenon of insufficient lubricating fluid in the storage tank after long-term use. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model;

[0009] Figure 2This is a schematic diagram of the storage tank structure of this utility model;

[0010] Figure 3 This is a schematic diagram of the assembly block structure of this utility model;

[0011] Figure 4 This is a cross-sectional view of the assembly block of this utility model;

[0012] Figure 5 This is a cross-sectional view of the storage tank of this utility model.

[0013] In the diagram: 1. Tailstock; 2. Assembly block; 21. Cleaning pad; 22. Hole; 23. Storage tank; 24. First liquid level sensor; 25. Second liquid level sensor; 3. Electric actuator; 31. Connecting rod; 32. Column block; 4. Ring; 41. Storage tank; 42. Solenoid valve; 43. Pipe; 44. Cover plate. Detailed Implementation

[0014] Please see Figure 1-5This utility model provides a technical solution: a hydraulic tailstock, including a tailstock 1, on which an assembly block 2, an electric actuator 3, and a ring 4 are disposed. The assembly block 2 is detachably installed at the bottom of the tailstock 1. The electric actuator 3 is fixedly connected to the upper side of one side of the tailstock 1. The ring 4 is fixedly connected to one side of the tailstock 1 and located below the electric actuator 3. The assembly block 2 is provided with a cleaning pad 21, a hole 22, and a storage tank 23. The cleaning pad 21 is fixedly connected to one side of the assembly block 2. The hole 22 is located at one end of the assembly block 2 and communicates with the inside of the storage tank 23. The storage tank 23 is located inside the assembly block 2. A first liquid level sensor 24 is fixedly connected to one side of the storage tank 23. On the other side of 3, a second liquid level sensor 25 is fixedly connected. When the hydraulic tailstock moves on the CNC machine tool through the assembly block 2, the lubricating fluid absorbed by the cleaning pad 21 will adhere to the assembly block 2 and the CNC machine tool, thereby reducing the friction between the hydraulic tailstock and the CNC machine tool during the movement and reducing the wear between the hydraulic tailstock and the CNC machine tool after long-term use. During this process, the first liquid level sensor 24 and the second liquid level sensor 25 will detect the liquid level in the storage tank 23 respectively. The storage tank 41 is detachably installed in the ring 4. One end of the storage tank 41 is connected to the pipe 43 through the solenoid valve 42, and the other end of the storage tank 41 is sealed with a cover plate 44.The output end of the electric actuator 3 is connected to the column block 32 via the connecting rod 31. When the lubricating fluid in the storage tank 23 is lower than the detection range of the first liquid level sensor 24, the controller will control the electric actuator 3 to operate and simultaneously control the solenoid valve 42 to open. At this time, the output end of the electric actuator 3 will drive the column block 32 to move downward in the storage tank 41 via the connecting rod 31, so that the lubricating fluid in the storage tank 41 is transported to the storage tank 23 through the pipe 43. When the lubricating fluid in the storage tank 23 reaches the detection range of the second liquid level sensor 25, the controller will control the solenoid valve 42 to close and simultaneously control the electric actuator 3 to stop operating. The detection ends of the first liquid level sensor 24 and the second liquid level sensor 25 are both located in the storage tank 23 and are electrically connected to the controller via wires, so that the first liquid level sensor 24 and the second liquid level sensor 25 can detect the amount of lubricating fluid in the storage tank 23 and transmit the detected information to the controller, so that the controller can control the electric actuator 3 and the solenoid valve 42 to operate. Two cleaning pads 21 are provided and are symmetrically arranged on both sides of the assembly block 2. One side of the cleaning pad 21 is on the same horizontal plane as the outer surface of the assembly block 2. The other side of the cleaning pad 21 is located inside the assembly block 2 and extends into the storage tank 23, so that the cleaning pad 21 can absorb the lubricant in the storage tank 23 and then apply the absorbed lubricant between the hydraulic tailstock and the CNC machine tool. One end of the solenoid valve 42 is sealed to the bottom of the storage tank 41, one end of the pipe 43 is sealed to the hole 22, and the other end of the pipe 43 is sealed to the other end of the solenoid valve 42, so that the pipe 43 can carry the lubricant in the storage tank 41. The lubricant is introduced into storage tank 23 to replenish the lubricant inside. One end of connecting rod 31 is fixedly connected to the upper end of column block 32, and the other end of connecting rod 31 passes through cover plate 44 and is fixedly connected to the output end of electric actuator 3. The outer diameter of column block 32 is adapted to the inner diameter of storage tank 41 and is movably connected to the inner wall of storage tank 41, so that the output end of electric actuator 3 can drive column block 32 to move downward in storage tank 41 through connecting rod 31, thereby allowing column block 32 to push out the lubricant in storage tank 41.

[0015] Working principle: When the hydraulic tailstock moves on the CNC machine tool via the assembly block 2, the lubricating fluid absorbed by the cleaning pad 21 adheres to both the assembly block 2 and the CNC machine tool, thereby reducing the friction between the hydraulic tailstock and the CNC machine tool during movement and reducing wear and tear on the hydraulic tailstock and the CNC machine tool over long-term use. During this process, the first liquid level sensor 24 and the second liquid level sensor 25 will detect the liquid level in the storage tank 23 respectively. When the lubricating fluid in the storage tank 23 is lower than the detection range of the first liquid level sensor 24, the controller will control the electric actuator 3 to operate and simultaneously control the solenoid valve 42 to open. At this time, the output end of the electric actuator 3 will drive the column block 32 to move downward in the storage tank 41 through the connecting rod 31, so that the lubricating fluid in the storage tank 41 is transported to the storage tank 23 through the pipe 43. When the lubricating fluid in the storage tank 23 reaches the detection range of the second liquid level sensor 25, the controller will control the solenoid valve 42 to close and simultaneously control the electric actuator 3 to stop operating.

Claims

1. A hydraulic tailstock, comprising a tailstock, characterized in that: The tailstock is equipped with an assembly block, an electric actuator, and a ring. The assembly block is detachably installed at the bottom of the tailstock. The electric actuator is fixedly connected to the upper side of one side of the tailstock, and the ring is fixedly connected to one side of the tailstock. The assembly block is equipped with a cleaning pad, a hole, and a storage tank. The cleaning pad is fixedly connected to one side of the assembly block. The hole is located at one end of the assembly block and communicates with the inside of the storage tank. A first liquid level sensor is fixedly connected to one side of the storage tank, and a second liquid level sensor is fixedly connected to the other side of the storage tank. The storage tank is detachably installed inside the ring. One end of the storage tank is connected to a tube via a solenoid valve. The output end of the electric actuator is connected to a column block via a connecting rod. The detection ends of the first and second liquid level sensors are both located inside the storage tank and are electrically connected to a controller via wires. Two cleaning pads are provided and symmetrically arranged on both sides of the assembly block. One end of the connecting rod is fixedly connected to the upper end of the column block, and the other end of the connecting rod passes through the cover plate and is fixedly connected to the output end of the electric actuator.

2. A hydraulic tailstock according to claim 1, characterized in that: The ring is located below the electric actuator, and the outer diameter of the column is matched with the inner diameter of the storage tank.

3. A hydraulic tailstock according to claim 2, characterized in that: The storage tank is located inside the assembly block, and a cover plate is sealed to the other end of the storage tank.

4. A hydraulic tailstock according to claim 3, characterized in that: One end of the pipe is sealed and connected inside the hole, and the other end of the pipe is sealed and connected to the other end of the solenoid valve.

5. A hydraulic tailstock according to claim 4, characterized in that: One side of the cleaning pad is on the same horizontal plane as the outer surface of the assembly block, and the column block is movably connected to the inner wall of the storage tank.

6. A hydraulic tailstock according to claim 5, characterized in that: The other side of the cleaning pad is located inside the assembly block and extends into the storage tank, with one end of the solenoid valve sealed to the bottom of the storage tank.

Citation Information

Patent Citations

  • Hydraulic tailstock of numerical control machine tool

    CN214557470U