Checking Fixtures need clever care to make it healthier
For the use of Checking Fixtures know-how, have a set of methods, want to learn how to use it? The following look at the benefits of his use, and its maintenance methods.
Maintain Crossing Checking Fixtures:
1, after use need to apply anti-rust oil to prevent rust, so you can also extend the life of the cross Checking Fixtures.
2, before the use of the limit size check whether to maintain the correct position of the cross Checking Fixtures, if not please adjust to the correct location.
3, if the block wear wear out of range, can be polished for repair; if the baffle, bolt, positioning cone pin wear serious and beyond the allowable error range, you can reassemble, staggered wear parts and then use to prevent errors.
Benefits of using Checking Fixtures:
1. Use Checking Fixtures to ensure and stabilize the machining accuracy to ensure the quality of the workpiece being machined. During the machining process, the correct use of Checking Fixtures ensures that the relative position of the workpiece and the tool is properly fixed and is not affected by various subjective factors so that the machining accuracy of the workpiece can be stabilized. Here we share an article "The concept of fixture and its application areas" 2.Checking Fixtures in the course of the process can shorten the auxiliary time to improve labor productivity. The use of Checking Fixtures generally consists of two processes: one is the installation and adjustment of the Checking Fixtures itself on the machine. This process relies on Checking Fixtures' own directional keys, which are quickly implemented on the toolbars, Method to achieve, but the speed is slower; the second is the workpiece in the Checking Fixtures in the installation process.
The material of Checking Fixtures includes a wide range of materials from general carbon structural steel, alloy structural steel, carbon tool steel, alloy tool steel, high speed tool steel, stainless steel, martensitic aging steel to hard alloy, insoluble alloy, Non-ferrous metals and so can be used, mainly alloy steel tool steel. With the development of China's Checking Fixtures industry, the new requirements for the quantity, quality, variety and performance of Checking Fixtures have been developed. The market for Checking Fixtures has also grown rapidly.
China Checking Fixtures materials under test the production of Checking Fixtures industry demand, mainly in several areas:
⑴ sales channels are not smooth.
⑵, black round bar, flat steel, concentrate, pre-hardened materials and products, less standard parts. China's Checking Fixtures steel market accounts for about 80% of the black round bar, the user for their own after the reorganization of the material obtained, the material utilization is low, the production cycle is long, can not meet the needs of Checking Fixtures manufacturing industry.
Â '¢, the quality of Checking Fixtures steel, high quality Checking Fixtures steel, a considerable part of the requirements of high Checking Fixtures steel need to go through vacuum refining and electroslag remelting, some foreign companies more than 150mm cross-section Checking Fixtures steel to ensure that the high Purity, high density, high isotropy and China's share through the electroslag remelting steel Checking Fixtures is very small.
Checking Fixtures is designed according to the mechanical principle of the double rocker mechanism in the planar four-bar mechanism. Its basic structure is composed of four components such as connecting rod, frame and two-bar.
When the connecting rod and the connecting rod of the two hinge joints and a series of rods and the articulation of the rack, three points in a straight line, the mechanism is in the dead position. At this time, the workpiece is pressed, no matter how much reaction (in addition to destructive reaction), can not make the pressure head to release, this is the mechanics of the dead point clamping principle.
In order to avoid in use, due to external load changes and the impact of mechanical vibration, the design of the middle hinge point, slightly biased in the other two hinge connection on the inside to ensure that the maximum tightening force in the case, always keep Checking The Fixtures mechanism is locked in a steady state without loosening.