A method for quickly matching the overlapping amount of high-precision hydraulic couple parts for excavators
A technology with high overlap and high precision, applied in grinding machines, grinding/polishing equipment, metal processing equipment, etc., can solve the problems of complex processing, repetitive work and high cost in the matching grinding process, and achieve the effect of high-efficiency matching processing
Active Publication Date: 2019-03-19
FLIGHT AUTOMATIC CONTROL RES INST
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The pneumatic or hydraulic measurement method comprehensively considers the influence of the actual shape of the valve port (radial clearance and rounded corners, etc.) It is difficult to meet the low-cost and short-cycle concept of civilian products
The conventional indirect measurement method needs to repeat the cycle of measurement-processing, and there are many repetitive tasks in the grinding process, the processing process is complicated, the cost is high, and the cycle is long
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] The invention discloses a rapid grinding method for the overlapping amount of high-precision hydraulic coupling parts used in an excavator. Using a universal tool microscope, the dimensions of the square holes of the first group and the second group of valve sleeves and the distance between the two groups of square holes are respectively measured. The distance dimension, combined with the theoretical dimension A of the end face 7 of the spool from the throttle edge 3, and the overlap index X, calculate the matching grinding size of each throttle edge of the spool. Then use the self-developed Studer S20-2 precision universal cylindrical grinding machine equipped with Movomatic online measuring system to carry out precision matching grinding of overlapping amount.
[0032] The following takes a certain type of excavator hydraulic coupling as an example. The hydraulic coupling requires an overlap of 0.01mm, and the theoretical dimension of the end face of the valve core fro...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a high-precision rapid match-grinding method for overlap amount of hydraulic matching parts for an excavator. The high-precision rapid match-grinding method comprises the following steps of: utilizing a universal tool microscope to separately measure dimensions of two groups of square holes and distance dimensions among the square holes, and calculating a match-grinding dimension of each metering edge of a valve element by combining the dimensions of the square holes and the distance dimensions among the square holes with a theoretical dimension A from the end surface 7 of the valve element to the metering edge 3 and an overlap amount index X; and utilizing a self-developed Studt S20-2 precision universal grinding machine equipped with a Movomatic online measuring system to display a practical dimension of the grinded metering edge in real time, and performing precision match-grinding processing on overlap amount. The method effectively guarantees symmetry and synchronization performance of the hydraulic matching parts, realizes low-cost high-efficiency match-grinding for overlap amount of the hydraulic matching parts, and meets requirements, on cost and period, of engineering mechanical parts.
Description
technical field [0001] The invention belongs to the precision matching grinding processing technology of excavator hydraulic components, and in particular relates to a rapid matching grinding method of high-precision hydraulic couple parts overlapping amount for the excavator. Background technique [0002] In the electric control servo control system of the excavator, the direct drive servo valve is the key component connecting the electrical and hydraulic parts of the system, and the precise matching and grinding of the hydraulic coupling parts of the servo valve is one of the difficulties and key points in its manufacture. At present, the commonly used overlapping grinding methods include pneumatic measurement method, hydraulic comprehensive measurement method and indirect measurement method. The pneumatic or hydraulic measurement method comprehensively considers the influence of the actual shape of the valve port (radial clearance and rounded corners, etc.) It is difficu...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B24B25/00
CPCB24B25/00
Inventor 徐瑞杨强强王文汉
Owner FLIGHT AUTOMATIC CONTROL RES INST