CN101876050A - Plasma automatic coating device on surface of large-sized valve plate workpiece - Google Patents
Plasma automatic coating device on surface of large-sized valve plate workpiece Download PDFInfo
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- CN101876050A CN101876050A CN2009103106045A CN200910310604A CN101876050A CN 101876050 A CN101876050 A CN 101876050A CN 2009103106045 A CN2009103106045 A CN 2009103106045A CN 200910310604 A CN200910310604 A CN 200910310604A CN 101876050 A CN101876050 A CN 101876050A
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Abstract
The invention relates to a plasma automatic coating device on the surface of a large-sized valve plate workpiece, which is characterized by mainly comprising a stand column, an automatic wire feeder, a plasma coating mechanism and a rotary workbench. The plasma coating mechanism consists of a plasma coating head swing support beam, a stepping motor, a screw rod and a plasma coating head; the plasma coating head swing support beam is fixedly connected with the stand column; the stepping motor is fixed at one end of the plasma coating head swing support beam; the output shaft of the stepping motor is connected with the screw rod which is connected with a plasma coating bracket; the plasma coating head is arranged at the lower end of the plasma coating bracket; the plasma coating bracket is fixedly connected with a heating device; and other two points which are at the lower part of the periphery of the workpiece and form a 120-degree angle together with the position of the welding point of the plasma coating head are also provided with workpiece heating devices. The plasma automatic coating device on the surface of the large-sized valve plate workpiece can ensure stable workpiece temperature in coating process, can ensure firm connection between a coating material and a workpiece matrix and can effectively solve the quality problem of plasma automatic coating on the surface of the large-sized valve plate workpiece.
Description
Technical field
The invention belongs to the plasma coating device, relate in particular to a kind of plasma automatic coating device that is applied to the large-sized valve plate workpiece surface of valve seal secondary surface coating.
Background technology
The principle of work of plasma coating is by the contained effect of water-cooled nozzle to electric arc, the plasma arc that obtains high-energy-density carries out coating, plasma coating is because plasma arc is subjected to mechanically compress, thermal contraction and magnetic shrink, thereby cause the cross section of electric arc little, current density is big, the performance that arc temperature is high, utilize the arc heat that produces between tungsten electrode and workpiece to melt mother metal and filler wire or do not add filler wire again, thereby form the coating principle of weld seam, this kind coater is because arc stability coating the time, so its adaptive faculty is strong, it almost can weld all metallic substance, is usually used in stainless steel, superalloy, aluminium, magnesium and alloy thereof, refractory active metal comprises: chromium, shield, platinum etc., and the coating of dissimilar metal.
The valve that uses under high temperature, high pressure, corrosion-resistant special operation condition condition, its valve plate material adopt cast steel or stainless steel can not satisfy the requirement of above-mentioned operating mode far away, then require the high-abrasive material at valve plate surface employing plasma coating equipment coating cobalt base alloy.In the coating process,, influence coating material and be connected insecure with the workpiece parent because the large-scale workpiece cooling is very fast.
Summary of the invention
The present invention is in order to overcome deficiency of the prior art, a kind of plasma automatic coating device of large-sized valve plate workpiece surface is provided, can realize the automatic coating process of plasma of large-sized valve plate workpiece surface, in the coating process, guarantee stable workpiece temperature, can guarantee that coating material firmly is connected with the workpiece parent.
The present invention for achieving the above object, be achieved through the following technical solutions, a kind of plasma automatic coating device of large-sized valve plate workpiece surface, it is characterized in that: mainly by with column frame connected vertically, automatic wire feeding mechanism, plasma coating mechanism and the rotary table that is connected with motor, described plasma coating mechanism is by plasma coating head swing supporting beam, stepper-motor, leading screw and plasma coating head constitute, described plasma coating head swing supporting beam and column are affixed, plasma coating head swing supporting beam one end is fixed with stepper-motor, described stepper-motor output shaft is connected with leading screw, described leading screw is connected with the plasma coating support, plasma coating support lower end is provided with the plasma coating head, does the affixed heating unit of described plasma coating support become 120 in the bottom of workpiece circumference with coating head bond pad locations? other 2 of the angle also are provided with Work-piece heating arrangement.
Described Work-piece heating arrangement reaches the liquid gas storage tank that connects by tracheae by the heating gun that has valve and constitutes.Described workpiece below corresponding row wire bond mouth peripheral position is provided with recirculated cooling water device.
Beneficial effect: in the coating process, guarantee stable workpiece temperature, can guarantee that coating material firmly is connected with the workpiece parent, efficiently solves the quality problems of the automatic coating of large-sized valve plate workpiece surface plasma.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, plasma welding wire 2, automatic wire feeding mechanism 3, heating unit 3-1, valve 3-2, heating gun 4, stepper-motor 5, leading screw 6, plasma coating support 7, plasma coating head 8, recirculated cooling water device 9, worktable 10, column 11, plasma coating head swing supporting beam 12, frame 13, motor 14, Controlling System intelligent terminal touch-screen 15, workpiece
Embodiment
Below in conjunction with preferred embodiment, to details are as follows according to embodiment provided by the invention: see accompanying drawing for details, a kind of plasma automatic coating device of large-sized valve plate workpiece surface, comprise automatic wire feeding mechanism 2, plasma coating head swing supporting beam 11 reaches and its fixed stepper-motor 4, the stepper-motor output shaft is connected with leading screw 5, the plasma coating support 6 that is connected with leading screw, the support lower end is provided with plasma coating head 7, plasma coating head swing supporting beam and column 10, the frame 12 affixed and frame 12 affixed rotary tables 9 that are provided with, the affixed heating unit 3 of described plasma coating support becomes at other 2 of hexagonal angle in the bottom of workpiece 15 circumference and also is provided with Work-piece heating arrangement 3 with coating head bond pad locations.Described Work-piece heating arrangement reaches the liquid gas storage tank (not shown) that connects by tracheae by the heating gun 3-2 that has valve 3-1 and constitutes.The valve 3-1 of heating unit places the workpiece below respectively.Described workpiece below corresponding row wire bond mouth peripheral position is provided with recirculated cooling water device 8.Described worktable 9 is connected with motor, by Controlling System control, realizes the automatic rotation of worktable.Motor and stepper-motor are connected with Controlling System.
Principle of work:
Automatic wire feeding mechanism is driven by stepper-motor, realizes plasma welding wire automatic feeding; Stepper-motor drives the plasma coating support by leading screw and moves, thereby realizes that the plasma coating head swings, with the weld seam of automatic adaptation plasma coating head welding with different in width; The automatic cooling of the valve plate workpiece when refrigerating unit is realized plasma coating prevents the hot excessive deformation of valve plate workpiece; In plasma coating head portion, become other 2 workpiece bottoms of 120 ° that heating unit is installed with bond pad locations at the workpiece circumference, this device is coated with and preheats plating valve plate workpiece, to increase work efficiency, reduces welding distortion; Motor 13 is realized the automatic rotation of worktable, with plasma coating circular valve plate Work piece sealing face by Controlling System control; The setting and the system of above-mentioned each parameter of Controlling System intelligent terminal touch-screen 14 realizations open, close; But real display system working order and fault alarm.
Said structure is an organic whole; Controlling System is the parameter setting and the control core of this equipment; By Controlling System, realize that setting, each mechanism's co-ordination, system's plasma coating welded condition of plasma coating controlled variable shows and warning, and realize the automatic coating weldprocedure of the special-shaped material of large-sized valve plate Work piece sealing face.In the coating process, Work-piece heating arrangement is opened in the workpiece uniform rotation simultaneously, makes workpiece keep more stable temperature.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. the plasma automatic coating device of a large-sized valve plate workpiece surface, it is characterized in that: mainly by with column frame connected vertically, automatic wire feeding mechanism, plasma coating mechanism and the rotary table that is connected with motor, described plasma coating mechanism is by plasma coating head swing supporting beam, stepper-motor, leading screw and plasma coating head constitute, described plasma coating head swing supporting beam and column are affixed, plasma coating head swing supporting beam one end is fixed with stepper-motor, described stepper-motor output shaft is connected with leading screw, described leading screw is connected with the plasma coating support, plasma coating support lower end is provided with the plasma coating head, the affixed heating unit of described plasma coating support becomes at other 2 of hexagonal angle in the bottom of workpiece circumference and also is provided with Work-piece heating arrangement with coating head bond pad locations.
2. the plasma automatic coating device of large-sized valve plate workpiece surface according to claim 1 is characterized in that: described Work-piece heating arrangement reaches the liquid gas storage tank that connects by tracheae by the heating gun that has valve and constitutes.
3. the plasma automatic coating device of large-sized valve plate workpiece surface according to claim 1 is characterized in that: corresponding row wire bond mouth position, described workpiece below is provided with recirculated cooling water device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103106045A CN101876050A (en) | 2009-11-28 | 2009-11-28 | Plasma automatic coating device on surface of large-sized valve plate workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103106045A CN101876050A (en) | 2009-11-28 | 2009-11-28 | Plasma automatic coating device on surface of large-sized valve plate workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101876050A true CN101876050A (en) | 2010-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103106045A Pending CN101876050A (en) | 2009-11-28 | 2009-11-28 | Plasma automatic coating device on surface of large-sized valve plate workpiece |
Country Status (1)
| Country | Link |
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| CN (1) | CN101876050A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106399903A (en) * | 2016-06-22 | 2017-02-15 | 南通东方科技有限公司 | Rotating system for plasma cladding of substrate |
| CN108796424A (en) * | 2018-07-18 | 2018-11-13 | 中国兵器工业第五九研究所 | The cooling device of light alloy revolving body part plasma spraying |
-
2009
- 2009-11-28 CN CN2009103106045A patent/CN101876050A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106399903A (en) * | 2016-06-22 | 2017-02-15 | 南通东方科技有限公司 | Rotating system for plasma cladding of substrate |
| CN108796424A (en) * | 2018-07-18 | 2018-11-13 | 中国兵器工业第五九研究所 | The cooling device of light alloy revolving body part plasma spraying |
| CN108796424B (en) * | 2018-07-18 | 2020-08-11 | 中国兵器工业第五九研究所 | Cooling device for plasma spraying of light alloy revolving body parts |
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Application publication date: 20101103 |