CN-121973087-A - Intelligent grinding method for slide valve seat

CN121973087ACN 121973087 ACN121973087 ACN 121973087ACN-121973087-A

Abstract

The invention discloses an intelligent grinding method of a slide valve seat, which relates to the technical field of slide valve seat grinding and specifically comprises the following steps of S1, starting a grinding procedure after an external conveying mechanism conveys a workpiece to the upper part of a roller conveyor, driving the workpiece to move to a designated station by the roller conveyor, clamping the workpiece by a claw plate, S2, clamping an oilstone placed on an oilstone placing table by a mechanical arm to clean a grinding surface, and then moving the workpiece to the grinding surface in the slide valve seat, S3, carrying out probing and calibration on the surface of the grinding surface by a visual camera of the grinding surface on the mechanical arm, so that the oilstone can correctly enter the slide valve seat to be placed, and releasing the clamping of the oilstone by the mechanical arm after the mechanical arm is placed in the slide valve seat.

Inventors

ZHANG BO
LIU LIANG
YIN YUNSHAN
WANG DING

Assignees

成都广屹实业发展有限公司

Dates

Publication Date: 20260505
Application Date: 20260327

Claims (4)

1. The intelligent grinding method for the slide valve seat is characterized by comprising the following steps of: S1, after an external conveying mechanism conveys a workpiece to the position above a roller conveyor (201), starting a grinding procedure, and after the roller conveyor (201) drives the workpiece to move to a designated station, clamping the workpiece through a clamping claw plate (202); S2, clamping an oilstone (50) placed on an oilstone placing table (40) through a mechanical arm (30) to clean the grinding surface, and then moving to a grinding surface (601) in a slide valve seat (60); S3, performing searchlighting and calibration on the surface of the grinding surface (601) through a grinding surface vision camera (306) on the mechanical arm (30), so that the oilstone (50) can correctly enter the slide valve seat (60) to be placed, and after the mechanical arm (30) is placed in the slide valve seat (60), releasing the clamping of the oilstone (50) by the mechanical arm (30); s4, connecting the placed oilstone (50) with a reciprocating assembly and a pressing assembly, and then driving the oilstone (50) to grind a grinding surface (601) through the reciprocating assembly; S5, the moving assembly, the pressing assembly and the oilstone (50) are separated from contact after grinding is finished, then the mechanical arm (30) clamps the oilstone (50) to move, and when the mechanical arm (30) drives the oilstone to separate from the grinding surface (601), an air nozzle in the mechanical arm (30) sweeps powder on the grinding surface (601); S6, after the mechanical arm (30) clamps the oilstone (50) and moves out of the slide valve seat (60), the mechanical arm (30) drives the oilstone (50) to move above the oilstone vision camera (90) to detect the state of the grinding surface of the oilstone (50); s7, after the grinding surface of the oilstone (50) is detected, placing the oilstone (50) on the original position of the oilstone placing table (40), and then replacing the next oilstone (50) for S2, wherein the grinding process of the grinding surface (601) is divided into a rough grinding process and a fine grinding process; S8, after finishing grinding work sequentially through a plurality of oilstones (50), the clamping jaw plates (202) release the clamping of the workpiece, and finally the workpiece is conveyed out of the device by the roller conveyor (201).
2. The intelligent grinding method of the slide valve seat according to claim 1, wherein in the steps S3, S5 and S6, the mechanical arm (30) clamps the oilstone (50) to be put in and taken out, the mechanical arm (30) is firstly separated from the contact of the grinding surface of the oilstone (50) and the grinding surface (601) vertically, then the mechanical arm (30) moves the oilstone (50) out of the slide valve seat (60), and the oilstone (50) cannot contact and collide with the inner wall of the slide valve seat (60) in the moving process.
3. The intelligent grinding method for the slide valve seat according to claim 1, wherein in the step S7, a certain amount of oilstones (50) are arranged in the oilstone placing table (40) for a rough grinding process, scratches on a grinding surface (601) are mainly removed in the rough grinding process, when the rough grinding process is finished, a grinding surface vision camera (306) on a mechanical arm (30) is adopted to photograph and identify the surface of the grinding surface (601), grinding quality is confirmed, when the grinding effect of the surface of the grinding surface (601) is compared, the next process is carried out, and otherwise, grinding is repeated.
4. The intelligent grinding method of the slide valve seat according to claim 1, wherein in the step S7, a certain amount of oilstones (50) are arranged as a lapping process, mainly the lapping surface (601) is leveled, after the lapping process is finished, a visual camera (306) of the lapping surface (601) on a mechanical arm (30) is adopted to take a picture to identify the surface of the lapping surface, and when the lapping process confirms the grinding effect, the state of the lapping surface of the oilstones (50) detected by the oilstone visual camera (90) is adopted to judge whether the grinding quality meets the requirement.

Description

Intelligent grinding method for slide valve seat Technical Field The invention relates to the technical field of grinding of slide valve seats, in particular to an intelligent grinding method of a slide valve seat. Background The sliding valve seat is used as a core component of key components such as a hydraulic control system, a precision mechanical transmission system and the like, and the surface flatness, the roughness and the dimensional accuracy of the sliding valve seat directly influence the sealing performance, the response speed and the service life of the system. Therefore, the grinding process of the slide valve seat is a key process for guaranteeing the quality of the slide valve seat. However, the traditional slide valve seat grinding technology has obvious defects, firstly, the traditional grinding technology relies on manual operation, including links such as replacement of the oilstone, cleaning of the oilstone, inspection of the oilstone and the like, the manual operation is low in efficiency and is easily influenced by factors such as experience and fatigue of operators in the operation process, so that grinding consistency is poor, surface quality is unstable, even workpieces are damaged or reworked due to misoperation, secondly, in the traditional grinding process, a real-time and accurate detection means is lacking in the state (such as flatness and contact uniformity) of a grinding surface and the abrasion degree of the oilstone, grinding parameters (such as pressure, path and rotating speed) cannot be dynamically adjusted according to the characteristics such as metal powder distribution and contact trace of the grinding surface, so that local overgrinding, undergrinding or deviation is easy to occur on the grinding surface, grinding results are influenced, in addition, repeated alignment adjustment is needed when the oilstone is manually replaced, time is consumed, the situation that the oilstone collides with the slide valve seat is easy to cause, the surface scratch or edge breakage of the workpiece is caused, and production cost and quality risk are increased. Disclosure of Invention Aiming at the technical problems, the invention provides the following steps: S1, after an external conveying mechanism conveys a workpiece to the upper part of a roller conveyor, starting a grinding procedure, and after the roller conveyor drives the workpiece to move to a designated station, clamping the workpiece through a clamping jaw plate; s2, clamping the oilstone placed on the oilstone placing table through the mechanical arm to clean the grinding surface, and then moving the oilstone to the grinding surface in the slide valve seat; S3, performing searchlighting and calibration on the surface of the grinding surface through a grinding surface visual camera on the mechanical arm, so that the oilstone can correctly enter the slide valve seat to be placed, and releasing the clamping of the oilstone by the mechanical arm after the mechanical arm is placed in the slide valve seat; s4, connecting the placed oilstone with a reciprocating assembly and a pressing assembly, and then driving the oilstone to grind a grinding surface through the reciprocating assembly; S5, the moving assembly, the pressing assembly and the oilstone are separated from contact after grinding is finished, then the oilstone is clamped by the mechanical arm to move, and when the mechanical arm drives the oilstone to separate from the grinding surface, the air tap in the mechanical arm sweeps powder on the grinding surface; S6, after the mechanical arm clamps the oilstone to move out of the slide valve seat, the mechanical arm drives the oilstone to move above the oilstone vision camera to detect the state of the grinding surface of the oilstone; s7, after the detection of the grinding surface of the whetstone is finished, placing the whetstone on the original position of the whetstone placing table, and then replacing the next whetstone to carry out S2, wherein the grinding process of the grinding surface is divided into a rough grinding process and a fine grinding process; s8, after finishing grinding work sequentially through a plurality of oilstones, the clamping jaw plates release clamping the workpiece, and finally the workpiece is conveyed out of the device by the roller conveyor. Further, in steps S3, S5, and S6, the mechanical arm is firstly separated from the contact between the grinding surface and the grinding surface during the movement of holding the whetstone, and then the mechanical arm moves the whetstone out of the slide valve seat, so that the whetstone cannot contact and collide with the inner wall of the slide valve seat during the movement. Further, in step S7, a certain amount of oilstones are set in the oilstone placing table for the rough grinding process, scratches on the grinding surface are mainly removed in the rough grinding process, when the rough grinding process is completed, the grinding surfa