Medium-high mechanism for high-precision roll grinder
By using a servo motor to drive the ball screw in the high-speed mechanism of the roll grinding machine, and utilizing support blocks and hydraulic cylinders to achieve stable swinging of the swing arm, the problem of poor stability in the prior art is solved, and the grinding accuracy is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI MACHINETOOL
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-05
AI Technical Summary
The driving method of the high mechanism in existing roll grinding machines results in poor stability, which affects grinding accuracy.
A servo motor drives the ball screw, and the stable swing of the rocker arm is achieved through the cooperation of the support block and the hydraulic cylinder, which replaces the direct connection with the screw nut seat and increases the support and adjustment functions.
This improves the stability and precision of grinding, ensuring high-precision operation of the medium and high-precision mechanism.
Smart Images
Figure CN224196477U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roll grinding technology, specifically to a medium-high mechanism for high-precision roll grinding machines. Background Technology
[0002] The intermediate-height mechanism of a roll grinding machine is a crucial functional component. This mechanism enables the grinding of roll surfaces with concave-convex curves, CVC curves, and arbitrary curves. Its structure consists of a servo motor driving a reduction gear mechanism, which in turn drives a ball screw, causing the screw nut seat to move up and down. This movement, in turn, drives a rocker arm, rotating the eccentric sleeve and ultimately achieving curve grinding. Existing drive methods involve the rocker arm being directly connected to the screw nut seat, driving its oscillation for grinding. This method suffers from poor stability and affects grinding accuracy. Summary of the Invention
[0003] To address the aforementioned technical problems, this utility model provides a medium-high mechanism for high-precision roll grinding machines, which can effectively improve stability and grinding accuracy.
[0004] The technical solution is as follows: a medium-high mechanism for a high-precision roll grinding machine, comprising a servo motor, a reduction mechanism, a ball screw, a screw nut seat, and a rocker arm. The ball screw is arranged vertically and one end is connected to the reduction mechanism. The reduction mechanism is connected to the servo motor. The screw nut seat is threadedly connected to the ball screw. The characteristic feature is that a support block is provided on the screw nut seat. One end of the rocker arm is provided with a roller, and the roller is slidably supported on the support block. An eccentric sleeve is installed at the other end of the rocker arm. A hydraulic cylinder is connected in the middle of the rocker arm.
[0005] A further feature is that the upper and lower ends of the ball screw are respectively connected to bearings installed on the upper top plate and the lower bottom plate, an L-shaped side support plate is provided between the upper top plate and the lower bottom plate, a longitudinal guide rail is installed on the L-shaped side support plate, and a slider that cooperates with the longitudinal guide rail is installed on the screw nut seat.
[0006] A sensing plate is installed on the lead screw nut seat, and an upper sensor mounting plate and a lower sensor mounting plate are installed on the L-shaped side support plate. The upper sensor mounting plate and the lower sensor mounting plate are equipped with a position sensing sensor for detecting the sensing plate.
[0007] The cylinder body is hinged to the grinding machine, and the end of the piston rod is hinged to the rocker arm.
[0008] With this invention, the rocker arm is no longer directly connected to the lead screw nut seat, but instead serves as a support and adjustment mechanism at one end. It works in conjunction with the hydraulic cylinder in the middle to drive the rocker arm to swing up and down, thus completing the grinding process. This results in good stability and improved grinding accuracy. Attached Figure Description
[0009] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0010] Figure 2 This is the front view of the present utility model;
[0011] Figure 3 for Figure 2 Sectional view along the AA direction. Detailed Implementation
[0012] See Figures 1 to 3 As shown, a high-precision mechanism for a high-precision roll grinding machine includes a servo motor 1, a reduction mechanism 2, a ball screw 3, a screw nut seat 4, and a rocker arm 5. The ball screw 3 is arranged vertically and its top end is connected to the reduction mechanism 2. The reduction mechanism 2 is connected to the servo motor 1. The screw nut seat 4 is threadedly connected to the ball screw 3. A support block 6 is provided on the screw nut seat 4. One end of the rocker arm 5 is provided with a roller 7, which is slidably supported on the support block 6. A replaceable shim 8 is provided on the support block 6. An eccentric sleeve 9 is installed on the other end of the rocker arm 5. A hydraulic cylinder 10 is connected in the middle of the rocker arm 5. The cylinder body of the hydraulic cylinder 10 is hinged to the grinding machine 11, and the end of the piston rod is hinged to the rocker arm 5.
[0013] The roller 7 connected to the rocker arm 5 is always supported on the support block 6. As the lead screw nut seat 4 rises and falls, the roller 7 can make a small displacement on the support block 6, and the rocker arm 5 swings up and down. The hydraulic cylinder 10 provides support and stability.
[0014] The upper and lower ends of the ball screw 3 are connected to bearings installed on the upper top plate 12 and the lower bottom plate 13, respectively. An L-shaped side support plate 14 is provided between the upper top plate 12 and the lower bottom plate 13. A longitudinal guide rail 15 is installed on the L-shaped side support plate 14. A slider 16 that cooperates with the longitudinal guide rail 15 is installed on the screw nut seat 4, ensuring that the screw nut seat 4 can be raised and lowered stably.
[0015] A sensing plate 17 is installed on the lead screw nut seat 4, and an upper sensor mounting plate 18 and a lower sensor mounting plate 19 are installed on the L-shaped side support plate 14. The upper sensor mounting plate 18 and the lower sensor mounting plate 19 are equipped with position sensing sensors (not shown in the figure) for detecting the sensing plate 17, which can be used to monitor the lifting position of the lead screw nut seat 4.
Claims
1. A medium-high speed mechanism for a high-precision roll grinding machine, comprising a servo motor, a reduction mechanism, a ball screw, a screw nut seat, and a rocker arm, wherein the ball screw is vertically arranged and one end is connected to the reduction mechanism, the reduction mechanism is connected to the servo motor, and the screw nut seat is threadedly connected to the ball screw, characterized in that, A support block is provided on the lead screw nut seat, a roller is provided at one end of the rocker arm and the roller is slidably supported on the support block, an eccentric sleeve is installed at the other end of the rocker arm, and an oil cylinder is connected in the middle of the rocker arm.
2. The intermediate-high mechanism for a high-precision roll grinding machine according to claim 1, characterized in that, The upper and lower ends of the ball screw are respectively connected to bearings installed on the upper top plate and the lower bottom plate. An L-shaped side support plate is provided between the upper top plate and the lower bottom plate. A longitudinal guide rail is installed on the L-shaped side support plate. A slider that cooperates with the longitudinal guide rail is installed on the screw nut seat.
3. The intermediate-high mechanism for a high-precision roll grinding machine according to claim 2, characterized in that, A sensing plate is installed on the lead screw nut seat, and an upper sensor mounting plate and a lower sensor mounting plate are installed on the L-shaped side support plate. The upper sensor mounting plate and the lower sensor mounting plate are equipped with a position sensing sensor for detecting the sensing plate.
4. The intermediate-high mechanism for a high-precision roll grinding machine according to claim 1, characterized in that, The cylinder body is hinged to the grinding machine, and the end of the piston rod is hinged to the rocker arm.