PVD coating clamp

Abstract

The invention discloses a PVD coating clamp and belongs to the field of PVD coating. The PVD coating clamp comprises a fixing pillar, a first fixing plate and a second fixing plate. The first fixing plate and the second fixing plate are connected to the fixing pillar in a sliding manner and each provided with corresponding tool storage holes. Fastening bolts are connected to the side walls of thefirst fixing plate and the second fixing plate, wherein the fastening bolts correspond to the tool storage holes. According to the PVD coating clamp, the first fixing plate and the second fixing plateslide on the fixing pillar, and thus, tools of different lengths can be coated; after the tools are fixed, a grip handle is pushed to drive a first piston body to slide in a first seal cavity througha first push rod, and furthermore, the pressure inside a first seal shell is conveyed into a second seal cavity through an air pipe, so that six second piston bodies are driven to slide outwards in the second seal cavity; and furthermore, arc-shaped clamping plates are driven by second push rods to abut against the middle parts of the tools, and thus, the tools can be more stable in the coating process.

Description

technical field [0001] The invention relates to the technical field of PVD coating, in particular to a clamp for PVD coating. Background technique [0002] PVD refers to the use of low-voltage, high-current arc discharge technology under vacuum conditions, using gas discharge to evaporate the target material and ionize both the evaporated material and the gas, and use the acceleration of the electric field to make the evaporated material and its reaction The product is deposited on the workpiece; the coating is a solid continuous film obtained by one application of paint, and it is a thin layer of plastic coated on metal, fabric, plastic and other substrates for the purpose of protection, insulation, decoration, etc. The paint can be gaseous, liquid, or solid, and the type and state of the paint are usually determined according to the substrate to be sprayed; [0003] PVD is an environmentally friendly surface treatment method that can truly obtain micron-scale or even nano...

AI Technical Summary

Problems solved by technology

As a kind of cutting tool, the double-ended tool is often used in the industry to improve its service life by PVD coating. However, since both ends of the double-ended tool need to be coated, the existing process needs to be coated twice during PVD coating. , so that the coating cycle is longer, resulting in slow delivery, low coating efficiency and higher production costs;

[0004] For example, the patent No. CN206654954U applies for a fixture for PVD coating of a double-headed tool. The fixture includes: an upper end cover, a lower end cover, and a side wall. The edge and the edge of the lower end cover are respectively provided with an upper clamping hole and a lower clamping hole along the circumference; There are an upper fastening screw hole and a lower fastening screw hole, and matching fastening screws are respectively arranged in the upper fastening screw hole and the lower fastening screw hole. The head tool is placed in the upper rotation shaft hole and the lower rotation shaft hole, and then fixed by the upper fastening screw hole and the lower fastening screw hole, so as to realize simultaneous coating of the double-headed tool, although this device avoids two Secondary coating, but the fixture for PVD coating of double-ended tools cannot meet the requirements of different lengths of tools for coating, and because the stability of the tool must be ensured during coating to ensure uniform coating on the tool, so according to the above deficiencies, we need A PVD Coating Fixture to Solve These Problems

Images