Servo driven top roll tailstock
Patent Information
- Application Number
- CN202521372112.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-01
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-07-01
AI Technical Summary
[0007]本实用新型旨在克服现有技术的缺陷,提供一种伺服驱动顶轧辊尾座,解决现有轧辊加工设备中顶持力难以控制的问题
[0013] The beneficial effects of this utility model are as follows: As can be seen from the above technical solution, this application provides a servo-driven top roll tailstock. By using a servo electric cylinder to drive the sleeve extension and retraction, the holding force can be precisely adjusted according to parameters such as the roll's material, weight, and processing technology. This precise control can effectively avoid problems such as roll deformation, tip wear, or roll displacement during grinding caused by improper holding force, thereby significantly improving the roll's processing accuracy and ensuring high surface quality and accurate dimensions of the processed roll. During the movement of the tailstock and the extension and retraction of the sleeve, the precise control of the servo electric cylinder and the synergistic effect of the guide mechanism and elastic buffer element inside the tailstock ensure smooth movement and avoid vibration, impact, and creep. This not only helps to extend the service life of the tailstock and related components but also further improves the surface processing quality of the roll and reduces processing errors caused by unstable tailstock movement.
Smart Images

Figure CN224713569U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rolling mill processing technology, specifically a servo-driven top rolling mill tailstock. Background Technology
[0002] As an important tool in metal processing, the performance of rolling mill rolls directly affects the quality of metal products, production efficiency, and the economic benefits of enterprises. With the rapid development of industry, higher requirements are being placed on the processing precision, surface quality, and service life of rolling mill rolls.
[0003] Currently, roll processing technology is developing towards higher precision, higher efficiency, and higher automation. The application of advanced processing equipment such as CNC roll grinding machines has significantly improved the processing accuracy and surface quality of rolls. However, during the roll processing, the control of the holding force has always been a key factor affecting the processing quality.
[0004] Traditional rolling mill equipment, such as hydraulic or manual tailstocks, offers advantages. While hydraulic tailstocks can provide significant holding force, their control precision is relatively low, making accurate adjustment of the holding force difficult. Furthermore, hydraulic systems are prone to leakage and have high maintenance costs. Manual tailstocks are cumbersome to operate, inefficient, and their holding force control relies entirely on the operator's experience, making it difficult to guarantee the stability and consistency of the holding force.
[0005] In existing technologies, improper control of the holding force can easily lead to deformation of the rolls during processing, as well as wear on the tips. These problems directly affect the processing quality and surface finish of the rolls, resulting in defective products or the need for rework, thus increasing production costs.
[0006] Existing technologies struggle to achieve precise control of the holding force, resulting in uneven or unsuitable holding forces. Insufficient holding force leads to roll displacement during processing, affecting accuracy; excessive holding force causes roll deformation or accelerated tip wear. This unstable holding force control makes it difficult to guarantee processing quality, especially when processing rolls of varying lengths and diameters. Utility Model Content
[0007] The present invention aims to overcome the defects of the prior art and provide a servo-driven top roll tailstock to solve the problem of difficult control of the holding force in the existing roll processing equipment.
[0008] To solve the above-mentioned technical problems, this utility model is implemented as follows: A servo-driven top roll tailstock, characterized in that: it includes a tailstock, a servo electric cylinder, and a sleeve; the tailstock is mounted on a worktable, the sleeve is mounted inside the housing of the tailstock for contacting the roll and providing a pressing force, and the servo electric cylinder is connected to the sleeve for driving the sleeve to extend or retract, so as to tighten or loosen the roll. The sleeve moves within the housing of the tailstock, and the movement of the tailstock and the extension and retraction of the sleeve are achieved by the drive of the servo electric cylinder.
[0009] The servo-driven top roll tailstock is characterized in that: the tailstock includes a fixed base and a housing, the fixed base is installed on the worktable, the housing is fixed on the fixed base, the sleeve is installed inside the housing, and a guide mechanism is provided inside the housing to guide the sleeve to move smoothly along the axial direction.
[0010] The servo-driven top roll tailstock is characterized in that: the inner wall of the tailstock housing is provided with a slide rail, and the outer wall of the sleeve is provided with a slide groove that matches the slide rail; the sleeve moves smoothly along the axial direction within the housing through the cooperation of the slide rail and the slide groove.
[0011] The servo-driven top roll tailstock is characterized in that: the servo electric cylinder is connected to the sleeve via a connecting mechanism, the connecting mechanism comprising: A connecting rod, one end of which is connected to the output end of the servo electric cylinder, and the other end of which is connected to the sleeve; An elastic buffer element is disposed between the connecting rod and the sleeve to absorb impacts and vibrations during the movement, ensuring the smooth movement of the sleeve.
[0012] The servo-driven top roll tailstock is characterized in that it further includes a position sensor mounted on the tailstock for detecting the extension and retraction position of the sleeve.
[0013] The beneficial effects of this utility model are as follows: As can be seen from the above technical solution, this application provides a servo-driven top roll tailstock. By using a servo electric cylinder to drive the sleeve extension and retraction, the holding force can be precisely adjusted according to parameters such as the roll's material, weight, and processing technology. This precise control can effectively avoid problems such as roll deformation, tip wear, or roll displacement during grinding caused by improper holding force, thereby significantly improving the roll's processing accuracy and ensuring high surface quality and accurate dimensions of the processed roll. During the movement of the tailstock and the extension and retraction of the sleeve, the precise control of the servo electric cylinder and the synergistic effect of the guide mechanism and elastic buffer element inside the tailstock ensure smooth movement and avoid vibration, impact, and creep. This not only helps to extend the service life of the tailstock and related components but also further improves the surface processing quality of the roll and reduces processing errors caused by unstable tailstock movement. Attached Figure Description
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of this application. Detailed Implementation
[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application. like Figure 1 As shown: A servo-driven top roll tailstock includes a tailstock 1, a servo electric cylinder 2, and a sleeve 3; the tailstock is mounted on a worktable, and the sleeve is mounted inside the housing 4 of the tailstock for contacting the roll and providing a pressing force; the servo electric cylinder is connected to the sleeve and is used to drive the sleeve to extend or retract to tighten or loosen the roll. The sleeve moves within the housing of the tailstock, and the movement of the tailstock and the extension and retraction of the sleeve are achieved by the drive of the servo electric cylinder.
[0016] The tailstock includes a fixed base and a housing. The fixed base is mounted on the workbench, the housing is fixed on the fixed base, the sleeve is installed inside the housing, and a guide mechanism is provided inside the housing to guide the sleeve to move smoothly along the axial direction.
[0017] The inner wall of the tailstock housing is provided with a slide rail, and the outer wall of the sleeve is provided with a slide groove that matches the slide rail. The sleeve moves smoothly along the axial direction within the housing through the cooperation of the slide rail and the slide groove.
[0018] The servo electric cylinder is connected to the sleeve via a connecting mechanism, the connecting mechanism comprising: A connecting rod, one end of which is connected to the output end of the servo electric cylinder, and the other end of which is connected to the sleeve; An elastic buffer element is disposed between the connecting rod and the sleeve to absorb impacts and vibrations during the movement, ensuring the smooth movement of the sleeve.
[0019] A position sensor and a controller are provided. The position sensor is mounted on the tailstock to detect the extension and retraction position of the sleeve. The controller is connected to the servo electric cylinder and the position sensor, and controls the movement of the servo electric cylinder based on the feedback signal from the position sensor.
[0020] Anti-rotation mechanism: installed at the output end of the servo electric cylinder to prevent the sleeve from rotating during extension and retraction.
[0021] Working principle: Secure the tailstock to the worktable.
[0022] Install the sleeve inside the tailstock housing to ensure proper fit between the slide groove and the slide rail.
[0023] Connect the servo electric cylinder and the connecting mechanism, and install the position sensor on the tailstock.
[0024] The system is initialized and the position sensor and servo electric cylinder are calibrated using the controller.
[0025] Place the roll to be processed on the worktable and adjust the position of the tailstock so that the sleeve is aligned with the tail end of the roll.
[0026] The servo electric cylinder starts working after the controller sends a command, driving the sleeve to extend and retract axially.
[0027] The position sensor detects the position of the sleeve in real time and feeds the signal back to the controller.
[0028] The controller precisely controls the output force and extension / retraction position of the servo electric cylinder based on preset holding force and position parameters, ensuring that the sleeve smoothly presses against the tail end of the roll.
[0029] During the rolling mill process, the servo electric cylinder adjusts the holding force in real time according to the rolling mill's processing status and feedback signals to ensure that the rolling mill remains stable throughout the processing.
[0030] Elastic buffer elements absorb shocks and vibrations during motion, further improving the stability of the system.
[0031] The anti-rotation mechanism prevents the sleeve from rotating during the extension and retraction process, ensuring stable contact between the sleeve and the roll.
[0032] After processing is completed, the controller sends a command, and the servo electric cylinder drives the sleeve to retract, releasing the roll.
[0033] Once the position sensor detects that the sleeve has returned to its initial position, the system completes one machining cycle.
[0034] By employing the servo-driven top roll tailstock in this embodiment, the processing accuracy and surface quality of the roll are significantly improved through precise control of the holding force and ensuring the smooth movement of the tailstock. Simultaneously, the automated control function reduces manual operation, increases production efficiency, and lowers labor intensity.
[0035] The above are merely embodiments provided in this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A servo-driven top roll tailstock, characterized in that: It includes a tailstock, a servo electric cylinder, and a sleeve; the tailstock is mounted on the worktable, and the sleeve is mounted inside the housing of the tailstock for contacting the roll and providing a holding force; the servo electric cylinder is connected to the sleeve and is used to drive the sleeve to extend or retract to tighten or loosen the roll. The sleeve moves within the housing of the tailstock, and the movement of the tailstock and the extension and retraction of the sleeve are achieved by the drive of the servo electric cylinder.
2. The servo-driven top roll tailstock according to claim 1, characterized in that: The tailstock includes a fixed base and a housing. The fixed base is mounted on the workbench, the housing is fixed on the fixed base, the sleeve is installed inside the housing, and a guide mechanism is provided inside the housing to guide the sleeve to move smoothly along the axial direction.
3. A servo-driven top roll tailstock according to claim 2, characterized in that: The inner wall of the tailstock housing is provided with a slide rail, and the outer wall of the sleeve is provided with a slide groove that matches the slide rail. The sleeve moves smoothly along the axial direction within the housing through the cooperation of the slide rail and the slide groove.
4. A servo-driven top roll tailstock according to claim 1, characterized in that: The servo electric cylinder is connected to the sleeve via a connecting mechanism, the connecting mechanism comprising: A connecting rod, one end of which is connected to the output end of the servo electric cylinder, and the other end of which is connected to the sleeve; An elastic buffer element is disposed between the connecting rod and the sleeve to absorb impacts and vibrations during the movement, ensuring the smooth movement of the sleeve.
5. A servo-driven top roll tailstock according to claim 1, characterized in that: It also includes a position sensor, mounted on the tailstock, for detecting the extension and retraction position of the sleeve.