Oil cylinder hard rail tailstock disengaging mechanism of external oil cylinder

By designing a combination of locking nut and fine thread, the problem of easy damage to the tip of the traditional external cylinder tailstock is solved, achieving stable fixation and flexible disengagement of the tip, thus improving machining accuracy and safety.

CN223888955UActive Publication Date: 2026-02-10NANJING ZHENHUAN INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202520522052.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-02-10
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

Traditional external hydraulic cylinder tailstock tip disengagement methods are prone to tip damage, cannot meet the disengagement requirements of tipless cylinders, and are not flexible in operation.

Method used

An external hydraulic cylinder hard rail tailstock disengagement mechanism was designed. The locking nut and fine thread combination achieves the fixation and locking of the tip. The tip can be easily disengaged by rotating the locking nut with the right hand and supporting the tip with the left hand, thus preventing the tip from falling or being damaged.

Benefits of technology

It achieves top-notch stable fixation and flexible disengagement, improving operational efficiency and reliability, and ensuring processing accuracy and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an oil cylinder hard rail tailstock disengaging mechanism with an external oil cylinder, which relates to the field of oil cylinder hard rail tailstock disengaging mechanisms and comprises an oil cylinder body, a tailstock steel sleeve is mounted at one end of the oil cylinder body, a tailstock sleeve is arranged at one end, far away from the oil cylinder body, of the tailstock steel sleeve, and an inner cavity of the tailstock sleeve is movably connected with a tip. One end of the tip penetrates to the outside of the tailstock sleeve, and a locking nut and fine threads are arranged at the end, away from the surface of the tailstock steel sleeve, of the tailstock sleeve. The center can be fixed and locked through rotation of the locking nut on the fine threads, the center can be separated from the tailstock sleeve by reversely rotating the locking nut, in the separation process, the center can be separated easily only by rotating the locking nut with the right hand and supporting the center with the left hand, and after separation, the center can be separated from the tailstock sleeve due to the fact that the center is supported with the left hand. Therefore, the center is not easy to fall off and damage, so that an efficient, stable and flexible tailstock disengagement function is realized.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of oil cylinder hard rail tail seat uncoupling mechanism, specifically an external oil cylinder oil cylinder hard rail tail seat uncoupling mechanism. BACKGROUND

[0002] The oil cylinder hard rail tail seat is an important component in machine tool equipment, which combines the functions of the oil cylinder, the hard rail and the tail seat, and is mainly used in mechanical equipment such as numerical control lathes, has the functions of stable support, accurate positioning and clamping workpieces, etc., and when the machine tool is maintained or repaired, the center is needed to be replaced and maintained to ensure the machining accuracy and the workpiece quality.

[0003] The traditional external oil cylinder tail seat center uncoupling needs to hold a knocking object with the right hand and a bevel iron with the left hand, and the flat center is extruded through the bevel iron by knocking the bevel iron, and in the process of knocking, the flat center is easily knocked out and falls off and collides with the machine tool, causing the center to be damaged, and the traditional external oil cylinder tail seat center uncoupling method cannot meet the uncoupling of the flat center, because the bevel iron cannot transmit force due to the design without the flat center, so the traditional external oil cylinder tail seat center uncoupling method has limitations.

[0004] Therefore, the utility model provides an external oil cylinder oil cylinder hard rail tail seat uncoupling mechanism to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0006] An external oil cylinder oil cylinder hard rail tail seat uncoupling mechanism, comprising an oil cylinder body, one end of the oil cylinder body is provided with a tail seat steel sleeve, the tail seat steel sleeve is provided with a tail seat sleeve at the end away from the oil cylinder body, the inner cavity of the tail seat sleeve is movably connected with a center, one end of the center penetrates to the outside of the tail seat sleeve, the end of the tail seat sleeve away from the surface of the tail seat steel sleeve is provided with a locking nut and a fine thread, the fine thread is arranged on the surface of the tail seat sleeve, the locking nut is sleeved on the surface of the fine thread and is in threaded connection with the surface of the fine thread, and the locking nut and the fine thread are used for fixing the center.

[0007] Further, in the utility model, the bottom of the tail seat steel sleeve is provided with a tail seat body, the tail seat steel sleeve is located in the inner cavity of the tail seat body and is movably connected with the inner cavity of the tail seat body.

[0008] Further, in the utility model, the end of the tail seat sleeve away from the center is provided with a tail seat oil cylinder joint, the tail seat sleeve and the tail seat oil cylinder joint both extend to the inner cavity of the tail seat steel sleeve and are movably connected with the inner cavity of the tail seat steel sleeve.

[0009] Further, in the utility model, the tailstock sleeve is away from the tailstock steel sleeve one end's surface still sets up the sealing ring, sleeve washer and the expansion sleeve, the sealing ring, sleeve washer and the expansion sleeve are used for providing sealing.

[0010] Further, in the utility model, the tailstock body is away from the oil cylinder body one end and is provided with the sleeve front end cover, the sleeve front end cover is through bolt and tailstock body screw joint.

[0011] Further, in the utility model, the tailstock sleeve is away from the tailstock steel sleeve one end's surface still sets up the sealing ring, sleeve washer and the expansion sleeve, the sealing ring, sleeve washer and the expansion sleeve are used for providing sealing.

[0012] Beneficial effect, the utility model has following beneficial effect:

[0013] The utility model discloses a tailstock sleeve, top pin and locking nut's combination, makes the whole mechanism compact structure, is easy to install and debugging, and top pin can be adjusted position flexibly simultaneously, adapts different processing demand, through the rotation of locking nut on fine thread, can realize the fixation and locking of top pin, ensures the stability and precision of top pin in the working process, and the reverse rotation locking nut can make top pin and tailstock sleeve disconnect, to make it convenient for dismounting, in the disconnecting process, only need to rotate locking nut with right hand, and hold top pin with left hand, can disconnect easily, after disconnecting, because holding with left hand, makes top pin not easy to fall and damage, to realize high -efficient, stable and flexible tailstock disconnecting function, and fine thread can provide more delicate adjustment and greater locking force, makes the fixation of top pin more reliable, and the operation of locking nut is also more simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the main view structure schematic drawing of the utility model;

[0015] Figure 2 It is the explosion state structure schematic drawing of the utility model;

[0016] Figure 3 It is the front view cross section structure schematic drawing of the tailstock sleeve, top pin and locking nut of the utility model;

[0017] Figure 4 It is the separation state structure schematic drawing of fine thread and locking nut of the utility model;

[0018] Figure 5 It is the connection state structure schematic drawing of the oil cylinder body, tailstock sleeve, top pin and locking nut and tailstock body of the utility model.

[0019] In the drawing:

[0020] 1. Cylinder body; 2. Tailstock steel sleeve; 3. Tailstock sleeve; 4. Tailstock cylinder connector; 5. Sleeve front end cap; 6. Center; 7. Locking nut; 8. Sealing ring; 9. Tailstock body; 10. Sleeve washer; 11. Tensioning sleeve; 12. Tailstock cylinder mounting base; 13. Fine thread. Detailed Implementation

[0021] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0022] Example 1

[0023] like Figures 1-5 As shown, this is the first embodiment of the present invention. This embodiment provides an external hydraulic cylinder hard rail tailstock disengagement mechanism, including a hydraulic cylinder body 1. A tailstock steel sleeve 2 is installed at one end of the hydraulic cylinder body 1. A tailstock sleeve 3 is provided at the end of the tailstock steel sleeve 2 away from the hydraulic cylinder body 1. A center point 6 is movably connected to the inner cavity of the tailstock sleeve 3. One end of the center point 6 extends through to the outside of the tailstock sleeve 3. A locking nut 7 and a fine thread 13 are provided at the end of the tailstock sleeve 3 away from the surface of the tailstock steel sleeve 2. The fine thread 13 is formed on the surface of the tailstock sleeve 3. The locking nut 7 is sleeved on the surface of the fine thread 13 and threadedly connected to the surface of the fine thread 13. The locking nut 7 and the fine thread 13 are used to fix the center point 6.

[0024] like Figures 1-5As shown, after processing, loosen the locking nut 7 to allow the tip 6 to return to its free state. The thrust generated by the rotation of the thread is transmitted through the end face of the locking nut 7 to the end face of the tip 6 to disengage the tip 6. During the disengagement process, simply rotate the locking nut 7 with your right hand and support the tip 6 with your left hand to easily disengage it. After disengagement, the tip 6 is less likely to fall off or be damaged because it is supported by the left hand. Due to the unique disengagement method, it can also easily disengage the flat tip, thereby improving the flexibility of disengaging the tip of the external hydraulic cylinder tailstock. The hydraulic cylinder body 1 provides hydraulic power, and the tailstock steel sleeve 2 and the tailstock... The seat sleeve 3 serves as a support and guide structure, while the center point 6 is used to support and position the workpiece during processing. This makes the entire mechanism compact, easy to install and debug. At the same time, the center point 6 can be flexibly adjusted to adapt to different processing requirements. By rotating the locking nut 7 on the fine thread 13, the center point 6 is fixed and locked, ensuring the stability and accuracy of the center point 6 during operation. The fine thread 13 provides finer adjustment and greater locking force, making the fixing of the center point 6 more reliable. Meanwhile, the operation of the locking nut 7 is also simpler.

[0025] Example 2

[0026] Reference Figures 1-5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0027] In this embodiment, a tailstock body 9 is installed at the bottom of the tailstock steel sleeve 2. The tailstock steel sleeve 2 is located in the inner cavity of the tailstock body 9 and is movably connected to the inner cavity of the tailstock body 9.

[0028] The tailstock sleeve 3 is provided with a tailstock cylinder connector 4 at the end away from the tip 6. Both the tailstock sleeve 3 and the tailstock cylinder connector 4 extend into the inner cavity of the tailstock steel sleeve 2 and are movably connected to the inner cavity of the tailstock steel sleeve 2.

[0029] A tailstock cylinder mounting seat 12 is provided between the cylinder body 1 and the tailstock steel sleeve 2. The tailstock cylinder mounting seat 12 is threadedly connected to the tailstock body 9 and the cylinder body 1 by bolts.

[0030] A sleeve front cover 5 is provided at the end of the tailstock body 9 away from the cylinder body 1. The sleeve front cover 5 is threadedly connected to the tailstock body 9 by bolts.

[0031] The surface of the tailstock sleeve 3 away from the tailstock steel sleeve 2 is also fitted with a sealing ring 8, a sleeve washer 10 and a tensioning sleeve 11, which are used to provide a seal.

[0032] like Figures 1-5As shown, the tailstock steel sleeve 2 moves within the inner cavity of the tailstock body 9, thereby adjusting the position and angle of the tip 6 to adapt to different processing scenarios. The tailstock sleeve 3 and the tailstock cylinder connector 4 together form the hydraulic power transmission channel. Simultaneously, they are movably connected to the inner cavity of the tailstock steel sleeve 2, allowing the entire mechanism to be flexibly adjusted. This not only ensures stable transmission of hydraulic power but also improves the flexibility and maintainability of the mechanism, facilitating maintenance and component replacement. The tailstock cylinder mounting base 12 and bolts connect the cylinder body 1 to the tailstock body 9, ensuring the stability and rigidity of the entire mechanism. The sleeve front end cover 5 is used... At the front end of the closed tailstock body 9, the internal components are protected from corrosion and damage by the external environment. The bolt connection provides reliable fixing force, making it less prone to shaking or displacement during processing, thus ensuring processing accuracy and stability. The combination of sealing ring 8, sleeve washer 10 and tensioning sleeve 11 constitutes the sealing system of the mechanism, which is used to prevent hydraulic oil leakage and external impurities from entering the mechanism. Sealing ring 8 provides a good sealing effect, while sleeve washer 10 and tensioning sleeve 11 further enhance the reliability and stability of the seal, thereby extending the service life of the mechanism and reducing maintenance costs.

[0033] During use, the position and angle of the tip 6 are precisely adjusted by adjusting the relative position of the tailstock steel sleeve 2 and the tailstock body 9, and the relative angle of the tailstock sleeve 3 and the tailstock cylinder connector 4, according to the processing requirements. After adjustment, the locking nut 7 is tightened so that it moves along the fine thread 13 toward the tip 6 until the tip 6 is fixed in the required position. The combination of the locking nut 7 and the fine thread 13 provides sufficient locking force to ensure that the tip 6 will not shake or shift during processing. The cylinder body 1 provides hydraulic power, which is transmitted to the tip 6 through the tailstock cylinder connector 4 and the tailstock sleeve 3 to support and position the workpiece.

[0034] After processing, loosen the locking nut 7 to allow the tip 6 to return to its free state. During the disengagement process, simply rotate the locking nut 7 with your right hand and support the tip 6 with your left hand to easily disengage. After disengagement, the tip 6 is less likely to fall off or be damaged because it is supported by the left hand. Due to the unique disengagement method, the tip without a flat surface can also be easily disengaged, thereby improving the flexibility of disengaging the tip of the external hydraulic cylinder tailstock.

[0035] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0036] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. An external hydraulic cylinder hard rail tailstock disengagement mechanism, comprising a hydraulic cylinder body (1), characterized in that: A tailstock steel sleeve (2) is installed at one end of the cylinder body (1). A tailstock sleeve (3) is provided at the end of the tailstock steel sleeve (2) away from the cylinder body (1). A center (6) is movably connected to the inner cavity of the tailstock sleeve (3). One end of the center (6) extends to the outside of the tailstock sleeve (3). A locking nut (7) and a fine thread (13) are provided at the end of the tailstock sleeve (3) away from the surface of the tailstock steel sleeve (2). The fine thread (13) is formed on the surface of the tailstock sleeve (3). The locking nut (7) is fitted on the surface of the fine thread (13) and is threadedly connected to the surface of the fine thread (13). The locking nut (7) and the fine thread (13) are used to fix the center (6).

2. The external hydraulic cylinder hard rail tailstock disengagement mechanism as described in claim 1, characterized in that: The tailstock steel sleeve (2) is fitted with a tailstock body (9) at its bottom. The tailstock steel sleeve (2) is located in the inner cavity of the tailstock body (9) and is movably connected to the inner cavity of the tailstock body (9).

3. The external hydraulic cylinder hard rail tailstock disengagement mechanism as described in claim 1, characterized in that: The tailstock sleeve (3) is provided with a tailstock cylinder connector (4) at the end away from the tip (6). Both the tailstock sleeve (3) and the tailstock cylinder connector (4) extend into the inner cavity of the tailstock steel sleeve (2) and are movably connected to the inner cavity of the tailstock steel sleeve (2).

4. The external hydraulic cylinder hard rail tailstock disengagement mechanism as described in claim 1, characterized in that: A tailstock cylinder mounting seat (12) is provided between the cylinder body (1) and the tailstock steel sleeve (2). The tailstock cylinder mounting seat (12) is threadedly connected to the tailstock body (9) and the cylinder body (1) respectively by bolts.

5. The external hydraulic cylinder hard rail tailstock disengagement mechanism as described in claim 2, characterized in that: The tailstock body (9) is provided with a sleeve front end cap (5) at the end away from the cylinder body (1), and the sleeve front end cap (5) is threadedly connected to the tailstock body (9) by bolts.

6. The external hydraulic cylinder hard rail tailstock disengagement mechanism as described in claim 1, characterized in that: The surface of the tailstock sleeve (3) away from the tailstock steel sleeve (2) is also fitted with a sealing ring (8), a sleeve washer (10) and a tensioning sleeve (11), which are used to provide a seal.