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Method and device for automatically pressing pellets and placing pressed powder pellets in laser cladding process

A technology of powder pressing and laser cladding, which is applied in metal material coating process, coating, etc., can solve the problems of low automation level, achieve good versatility, high automation, and meet cladding requirements

Active Publication Date: 2016-05-11
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that tablet pressing and cladding need to be carried out manually in stages during laser cladding, and the automation level is not high, and to invent a pre-set automatic tablet pressing and automatic placement of powder pressing in the laser cladding process. At the same time, a corresponding automatic tablet pressing and tableting device is designed to realize the automatic pressing of powder pressing and automatic placing of powder pressing on the surface of the substrate in the absence of synchronous laser cladding device, so as to improve the quality of preset laser melting. Covering efficiency and automation level

Method used

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  • Method and device for automatically pressing pellets and placing pressed powder pellets in laser cladding process
  • Method and device for automatically pressing pellets and placing pressed powder pellets in laser cladding process
  • Method and device for automatically pressing pellets and placing pressed powder pellets in laser cladding process

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Embodiment 1

[0037] Such as figure 1 , as shown in 2.

[0038] A device for automatically pressing and placing powder pressing during laser cladding, which mainly includes a computer system, a servo motor, power equipment, a powder pressing mechanism, a cam transmission mechanism and a screw transmission mechanism; the servo motor 30, Power equipment 2 is all connected with described computer system 1; Described powder tabletting mechanism comprises power equipment 2, speed reducer 3. End cover 4. Rotating lead screw 5. Movable nut 6, mold spring 7 and pressure head 8, power equipment 2 and reducer 3 bolts after connection 27 is vertically fixed on the end cover 4, the movable nut 6 is placed in the guide groove of the base 24, and can move up and down along the guide groove, and the mold spring 7 is pressed into the pressure head 8 and the movable nut 6 to realize the connection between the two , the computer 1 controls the power equipment 2 through the reducer 3 drives the rota...

Embodiment 2

[0040] A method of automatic tableting and placing powder tableting during laser cladding, taking the Ni / WC powder tableting coating on the surface of AZ91D magnesium alloy (length: 40mm, width: 40mm, height: 5mm) as an example , the method steps are as follows:

[0041] A. Grind the AZ91D magnesium alloy substrate to be clad with sandpaper and ultrasonically clean it with alcohol or acetone for 5-10 minutes to remove oil stains and dirt on the surface;

[0042] B. Place the processed cladding substrate on the motion platform, and place it in the working area of ​​the guide groove under the control of the controller;

[0043] C. The computer sends out a signal to make the power equipment start to rotate and turn the screw in reducer Driven by the in-situ rotation, the moving nut drives the indenter to move down, and the Ni / WC powder manually placed in the accurately weighed groove is pressed down;

[0044] D. When the press-in pressure reaches 28Mpa, the digital display p...

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Abstract

The invention discloses a method and a device for automatically pressing pellets and placing pressed powder pellets in a laser cladding process. The device is characterized by mainly comprising a computer system, a servo motor, power equipment, a lead screw transmission mechanism, a cam mechanism, a mechanism for pressing powder into pellets, and the like. According to the device, a movable nut with a high-strength mould spring in the mechanism for pressing powder into pellets is driven by utilizing the power equipment to carry out downward pellet pressing on manually conveyed powder which is precisely weighed, and the pressed powder pellets are ejected out by utilizing the cam mechanism; meanwhile, the lead transmission mechanism in the horizontal direction drives a pushing rod to move right, the pushing rod is linked with a roller driven part to push the pressed powder pellets to the surface of a to-be-clad base material along a guide slot, and finally, laser cladding processing is carried out. The device effectively realizes improvement of automatic level of the cladding process while carrying out quick laser cladding on preset pressed powder pellets. The device has a simple structure and high efficiency, and can realize laser cladding operation of automatic powder pressing and automatic pressed powder pellet placing.

Description

technical field [0001] The invention relates to a laser cladding technology, in particular to a method and device for laser cladding treatment on the surface of a material by using the laser cladding technology, in particular to an automatic tablet pressing and automatic powder placement during the laser cladding process. Method and device for tableting. Background technique [0002] Laser cladding technology is an advanced surface treatment process, which can obtain extremely low dilution rate on the surface of low-cost materials and form a metallurgical bond with the substrate with high hardness, high wear resistance, high corrosion resistance and high oxidation resistance, etc. Coatings with special properties. The laser cladding process is divided into preset laser cladding and synchronous laser cladding. Among them, preset laser cladding has been widely used in the research field of laser cladding to prepare composite coatings due to its advantages such as wide applic...

Claims

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Application Information

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IPC IPC(8): C23C24/10
CPCC23C24/10
Inventor 周建忠徐家乐孟宪凯黄舒王宏宇冯旭薛远徐洋洋
Owner JIANGSU UNIV
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