Analysis of the Actual State of the Error of Drilling Tool Fixtures Right
Abstract
Accurate clamping is the prerequisite for machining accuracy. Drill clamping fixture is an important part of drill production and its accuracy directly affects the processing quality. Through the analysis of the actual state of the error between the drill and the drill clamp in use, the influence of the error on the drilling accuracy is studied. At the same time, this paper put forward relevant methods to improve the accuracy of thediamond bit clamping device.
Introduction
The accuracy of the drilling tool fixture has a great influence on the accuracy of processing and the quality of the driller. It affects the cutting fluid flow when drilling, and the tool can be transferred to the correct cutting position, the cutting pressure is balanced, and the cutting heat is dissipated, so as to improve the drilling accuracy. Therefore, to improve the accuracy of drill clamping, we should carefully analyze the accuracy of drill clamping in the production process, and make adjustment and use method to improve its accuracy.
Analysis of Errors in Drilling Tool Fixtures
In the production of drills, the process is to fix the drilling tool on the fixture, and then install the position. In the use of drill clamping, the user found the error between the clamping fixture and the drill. The error of the drill clamping fixture includes the error of the positioning hole size, the error of the positioning hole center position, and the error of the clamping pressure.
Error of Positioning Hole Size
The size of the positioning hole directly affects the accuracy of the drilling tool installation and positioning. If the size of the positioning hole changes, the accuracy of the positioning will be promoted and the installation of the drilling tool will be correct. Otherwise, the accuracy of the drilling tool will be significantly reduced, which will affect the positioning accuracy and the machining accuracy.
Error of Positioning Hole Center Position
The error of the positioning hole center position has a greater influence on the accuracy of the drilling tool installation than the size error. If the error of the hole center position is too large, the small hole cannot be guided to the small hole accurately, thus affecting the accuracy of installation. The users have to adjust the drill angle manually, and the error increases, which causes the position accuracy and the machining accuracy to decrease.
Error of Clamping Pressure
The rigidity of clamping pressure also affects the accuracy of the drilling tool clamping. If the clamped drill is hard and the clamping pressure is inadequate, the drill clamping will be unstable, which will affect the machining accuracy.
Methods to Improve the Accuracy of the Drilling Tool Fixture
To improve the accuracy of the positioning hole size, we must first measure the size of the hole and choose the positioning hole size according to the size of the drill. If the error of the positioning hole shape is too large, the positioning hole position must be corrected regularly.
The error of the positioning hole center position can be divided into raising and lowering error and inclined error. The rise and fall error can be corrected by changing the center, and the tilt error can be corrected by adjusting the plane.
The clamping pressure of the drill should be strong enough to ensure the positioning of the drill and the stability of the drill when turning.
Conclusion
Drill clamping fixture is the basis of the drill processing accuracy. The accuracy of the clamping depends on the correct selection of the correct clamping fixture, the accurate manipulation and use of the clamping fixture, and the reasonable regulation and calibration of the clamping parameters. If you want to solve this problem, you can improve the accuracy of the drill clamping by improving the clamping fixture structure, increasing the clamping force and studying new drill clamping technologies.
