CN205702819U - A kind of lance body structure of plasma build-up welding gun - Google Patents
A kind of lance body structure of plasma build-up welding gun Download PDFInfo
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- CN205702819U CN205702819U CN201620644474.4U CN201620644474U CN205702819U CN 205702819 U CN205702819 U CN 205702819U CN 201620644474 U CN201620644474 U CN 201620644474U CN 205702819 U CN205702819 U CN 205702819U
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Abstract
This utility model provides the lance body structure of a kind of plasma build-up welding gun, belongs to plasma surfacing technical field；It solve that existing welding gun built-up welding precision is low and the technical problem of built-up welding weak effect；The lance body structure of a kind of plasma build-up welding gun, including gun body, it is axially arranged；Plasma (orifice) gas passage, passes in it is penetrated gun body by gun body outer surface and by gun body front end, and plasma (orifice) gas passage is positioned at gun body center；Protection gas passage, it is penetrated gun body by gun body outer surface and is passed by gun body front end；Cooling-water duct, is passed by gun body outer surface in it is penetrated gun body by gun body outer surface and behind gun body front end；Powder channel, it is penetrated by gun body rear end and is passed by gun body front end；Overall volume is less, simple in construction and compact, and its production cost is less, and meanwhile, plasma (orifice) gas passage, protection gas passage, cooling-water duct and powder channel are evenly distributed in gun body, and it optimizes the internal structure of gun body, adds the built-up welding precision of welding gun.
Description
Technical field
This utility model belongs to plasma surfacing technical field, relates to the lance body structure of a kind of plasma build-up welding gun.
Background technology
Plasma arc powder surfacing is using plasma arc as thermal source, the high temperature that application plasma arc produces by alloy powder with
Matrix surface heats rapidly and melts together, mixes, spreads, solidifying, and beam-plasma leaves rear self-excitation cooling, forms a floor height
The alloy-layer of energy, thus realize the strengthening of piece surface and the bead-welding technology of hardening, it is widely used in oil, chemical industry, engineering
The industries such as machinery, mining machinery.
Plasma build-up welding gun is equipment conventional in plasma surfacing technology, and traditional plasma (welding) torch is such as awarded
Weighing a kind of novel little endoporus plasma arc powder surfacing rifle disclosed in the utility model that notification number is CN 203484793 U, it includes
Upper cutting gun, insulator, lower gun body, three parts by lengthen die casting gun body parcel be cast as one, the lower end of lower gun body be provided with nozzle and
Gas shield cover；Tungsten electrode is fastened by tungsten electrode clamp lock, runs through lower gun body；Be provided with in lower gun body water-cooling channel, annular powder passage,
Ring-like gas passage arranges the most from inside to outside；It is gentle that lower gun body upper parallel is provided with tube cell passage, intake tunnel, exhalant canal
Body passage；Although this welding gun structure can realize the plasma arc powder surfacing of little endoporus, but there is techniques below problem simultaneously, 1,
The overall volume of welding gun is relatively big, and structure loosely, on the one hand adds cost, on the other hand reduces the built-up welding precision of welding gun；
2, its cooling-water duct is positioned at the periphery of lower gun body, does not extends at nozzle, cannot carry out nozzle effectively when causing its work
Cooling, be easily caused nozzle temperature too high, thus affect the built-up welding effect of welding gun.
In sum, in order to solve the technical problem that above-mentioned welding gun exists, need a kind of built-up welding precision of design high and built-up welding
The lance body structure of effective plasma build-up welding gun.
Utility model content
The purpose of this utility model is the problems referred to above existed for prior art, it is proposed that a kind of built-up welding precision height and heap
Weld the lance body structure of effective plasma build-up welding gun.
The purpose of this utility model can be realized by following technical proposal: the gun body knot of a kind of plasma build-up welding gun
Structure, including
Gun body, it is axially arranged；
Plasma (orifice) gas passage, passes in it is penetrated gun body by gun body outer surface and by gun body front end, and described plasma (orifice) gas leads to
Road is positioned at gun body center；
Protecting gas passage, it is penetrated gun body by gun body outer surface and is passed by gun body front end, and described protection gas passage has two
Bar and be positioned at plasma (orifice) gas passage both sides；
Cooling-water duct, is passed by gun body outer surface in it is penetrated gun body by gun body outer surface and behind gun body front end；
Powder channel, it penetrates by gun body rear end and is passed by gun body front end, and powder channel has two and is positioned at plasma
Gas passage both sides.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, described gun body includes
Rear lance, plasma (orifice) gas passage, protection gas passage, the import of cooling-water duct be respectively positioned on rear lance outer surface,
The import of powder channel is positioned on the rear end face of rear lance；
Front gun body, it is connected with rear lance, and plasma (orifice) gas passage, protection gas passage both pass through front gun body with powder channel,
The outlet of cooling-water duct is positioned on front gun body outer surface；
Nozzle, it is connected with front gun body, and described plasma (orifice) gas passage runs through nozzle, and described cooling-water duct extends to nozzle
In, powder channel runs through the outlet of nozzle and powder channel and is positioned at plasma (orifice) gas channel outlet both sides, described protection gas passage
It is peripheral that outlet is positioned at plasma (orifice) gas channel outlet.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, the outer surface of described rear lance offers the first air inlet
Hole, is provided centrally with running through the first gas port of front gun body at front gun body, is provided centrally with running through the of nozzle at nozzle
One venthole, described first air inlet, the first gas port and the first venthole three communicate and are formed described plasma (orifice) gas and lead to
Road.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, the outer surface of described rear lance offers two second and enters
Pore, is provided through two second gas ports of front gun body on front gun body, and two second gas ports lay respectively at plasma (orifice) gas and lead to
Both sides, road, described protective cover separates with nozzle and is formed with the chamber of giving vent to anger connecting outside, described second air inlet, the second inducing QI
Hole, the chamber three that gives vent to anger connect and formed described in protection gas passage.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, the outer surface of described rear lance offers inlet opening,
The periphery being positioned at plasma channel in front gun body is provided with first annular chamber, is positioned at the periphery of plasma channel in nozzle
Offering the second annular compartment, described first annular chamber and the second annular compartment communicate, front gun body outer surface offer
Apopore, inlet opening, first annular chamber, apopore is had to be sequentially communicated and formed described cooling-water duct.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, described rear lance is provided with two and runs through rear lance
Powder entering hole, described front gun body is provided with two powder-guiding holes running through front gun body, described nozzle is tiltedly installed with two and runs through nozzle
Flour opening, described flour opening is positioned at plasma channel both sides and intersects with the outlet of plasma channel, described powder entering hole, leads powder
Hole, flour opening communicate and three forms described powder channel.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, it is provided through rear lance at the middle part of rear lance
Installing hole, is provided with installation set in described installing hole, the outer surface of installation set is provided with two blocks and block is against in installing hole
On wall, it is formed with guiding gutter between described two blocks and guiding gutter communicates with inlet opening and first annular chamber respectively.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, described gun body also includes protective cover, described protective cover
Cover on front gun body and and nozzle between form the outlet of described protection gas passage.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, described gun body also includes insulator, described insulator
It is connected between rear lance and front gun body and with the two, described plasma (orifice) gas passage, protection gas passage, cooling-water duct, powder
End passage all passes through insulator.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, described rear lance, insulator, front gun body lead to nozzle
Crossing bolt to be connected, described protective cover is threadeded with front gun body.
Compared with prior art, this utility model has the advantages that
1, in this utility model, welding gun gun body is axially arranged cylindrical shape, and its overall volume is less, simple in construction and
Compact, its production cost is less, and meanwhile, plasma (orifice) gas passage, protection gas passage, cooling-water duct and powder channel uniformly divide
Cloth is in gun body, and it optimizes the internal structure of gun body, adds the built-up welding precision of welding gun.
2, the cooling-water duct of this gun body is stretched into gun body inside by the outer surface of gun body and extends to the front end of gun body, because of
This, the gun body whole fore-end including nozzle can effectively be lowered the temperature, effectively by the cooling water in cooling-water duct
To avoid gun body head temperature too high, thus ensure that welding gun has preferable built-up welding effect.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is top view of the present utility model.
Fig. 3 is side view of the present utility model.
Fig. 4 is A-A sectional view in Fig. 2.
Fig. 5 is the sectional view of B-B in Fig. 2.
Fig. 6 is the sectional view of C-C in Fig. 2.
Fig. 7 is the sectional view of D-D in Fig. 2.
Fig. 8 is the sectional view of E-E in Fig. 2.
Fig. 9 is the sectional view of F-F in Fig. 2.
Figure 10 is the sectional view of G-G in Fig. 3.
In figure, 100, gun body；110, rear lance；111, the first air inlet；112, the second air inlet；113, inlet opening；
114, powder entering hole；115, installing hole；116, set is installed；116a, block；116b, guiding gutter；117, diversion gap；120, insulation
Body；121, the first intercommunicating pore；122, passage；123, the second intercommunicating pore；124, third connecting hole；125, the 4th intercommunicating pore；
130, front gun body；131, the first gas port；132, the second gas port；133, first annular chamber；134, apopore；135, powder is led
Hole；140, nozzle；141, the first venthole；142, the second annular compartment；143, flour opening；150, protective cover；151, outlet chamber
Room；152, annular air outlet.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, the technical solution of the utility model is made further
Description, but this utility model is not limited to these embodiments.
As shown in Figures 1 to 10, gun body 100 structure of a kind of plasma build-up welding gun of this utility model, it is plasma
A part for surfacing equipment, it includes gun body 100 and is arranged at the plasma channel in gun body 100, protection gas passage, cooling
Aquaporin and powder channel.
Gun body 100 is axially arranged, and it is similar to cylinder, and described gun body 100 includes rear lance 110, the insulation being sequentially connected
Body 120, front gun body 130, nozzle 140 and protective cover 150.
Described rear lance 110, insulator 120 and front gun body 130 are the most in the form of annular discs, described nozzle 140 in frustum, institute
Stating rear lance 110, insulator 120, front gun body 130 and nozzle 140 to be connected by bolt, described protective cover 150 covers on front gun body
On 130 and nozzle 140 is between protective cover 150 and front gun body 130, described protective cover 150 is threadeded with front gun body 130.
As shown in Figure 1, Figure 2, Figure 4 shows, the upper end outer surface at rear lance 110 offers led within rear lance 110
One air inlet 111, this first air inlet 111 is rear in entering rear lance 110 be there is bending and leads to rear lance 110 and insulator
120 adjacent surfaces.
Offer the first intercommunicating pore 121 communicated with the first air inlet 111 on insulator 120, this first intercommunicating pore 121 in
Bending, axially offers the passage 122 running through insulator 120, described first intercommunicating pore in the center of insulator 120
121 connect with the first air inlet 111 and passage 122 respectively.
The center of front gun body 130 axially offers the first gas port connecting and running through front gun body 130 with passage 122
131。
The first venthole 141 running through nozzle 140, described first air inlet is axially offered in the center of nozzle 140
111, the first intercommunicating pore 121, passage the 122, first gas port the 131, first venthole 141 communicate and are formed described plasma
Gas passage, this plasma (orifice) gas passage is used for carrying plasma (orifice) gas.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, Fig. 6, Fig. 7, Figure 10, figure offers logical at the upper end outer surface of rear lance 110
To two second air inlets 112 within rear lance 110, two second air inlets 112 lay respectively at the both sides of the first air inlet 111,
Wherein one second air inlet 112 is passed through the inner upper end of rear lance 110, and another second air inlet 112 is passed through the interior of rear lance 110
Subordinate's end.
The inside upper and lower side of insulator 120 offers two second intercommunicating pores 123 axially penetrating through insulator 120, institute respectively
Two second intercommunicating pores 123 stated lay respectively at the both sides of passage 122, be positioned at the second intercommunicating pore 123 of insulator 120 upper end with
Second air inlet 112 of rear lance 110 upper end communicates, and is positioned at the second intercommunicating pore 123 and the rear lance 110 of insulator 120 lower end
Second air inlet 112 of lower end communicates.
The inside upper and lower side of front gun body 130 offers two second gas ports 132 running through front gun body 130 the most accordingly, and two
Second gas port 132 lays respectively at the both sides of the first gas port 131.
Protective cover 150 and nozzle 140 separate and are formed with chamber 151 of giving vent to anger, and protective cover 150 supports before nozzle 140
Equalling and be formed with annular air outlet 152, this annular air outlet 152 is used gas chamber 151 and is communicated with outside, described in give vent to anger chamber
151 communicate with two second gas ports 132, described second air inlet the 112, second intercommunicating pore the 123, second gas port 132, outlet chamber
Room 151 is sequentially communicated and is formed described protection gas passage, protection gas passage protective gas when transportation work.
As shown in Figure 1, Figure 2, shown in Fig. 8, the upper end outer surface at rear lance 110 is further opened with being passed through within rear lance 110
Inlet opening 113, this inlet opening 113 is located therein between the first air inlet 111 and the second air inlet 112.
Insulator 120 axially offers the third connecting hole 124 running through insulator 120, described third connecting hole 124
Communicate with inlet opening 113.
The periphery being positioned at the first gas port 131 in front gun body 130 is provided with first annular chamber 133, and the described 3rd even
Through hole 124 connects with the lower end of first annular chamber 133, offers and be passed through front gun body on the upper end outer surface of front gun body 130
130 inside the apopore 134 connected with first annular chamber 133 upper end.
The end face that nozzle 140 is adjacent with front gun body 130 offers the second annular compartment 142, this second annular compartment
142 tapered settings and be positioned at the periphery of the first venthole 141, described first annular chamber 133 and the second annular compartment 142 phase
Logical, described inlet opening 113, first annular chamber the 133, second annular compartment 142 communicate and are formed described cooling-water duct, should
Cooling-water duct is used for carrying cooling water, makes whole gun body 100 operationally obtain effective temperature-reducing, it is to avoid gun body 100 temperature mistake
High.
As shown in Figure 1, Figure 10 shows, the rear end face on rear lance 110 axially offers two powder entering holes running through rear lance 110
114, two powder entering holes 114 are positioned at the both sides of installing hole 115.
The both sides being positioned at passage 122 on insulator 120 the most axially offer the 4th connection running through insulator 120
Hole 125, two the 4th intercommunicating pores 125 connect with two powder entering holes 114 respectively.
The both sides being positioned at the first gas port 131 in front gun body 130 offer the powder-guiding hole running through front gun body 130 respectively
135, two powder-guiding holes 135 connect with two the 4th intercommunicating pores 125 respectively.
Tilting to offer two flour openings 143 running through nozzle 140 on nozzle 140, described flour opening 143 is positioned at first and goes out
Pore 141 both sides be intersection with the outlet of the first venthole 141, described powder entering hole the 114, the 4th intercommunicating pore 125, lead powder
Hole 135, flour opening 143 are sequentially communicated and are formed described powder channel, and this powder channel is used for carrying alloy powder, for whole
Welding gun provides the raw metal needed for built-up welding.
During work, it is passed through cooling water at cooling-water duct, in protection gas passage, is passed through protective gas, at plasma successively
It is passed through plasma gas in gas passage, in powder channel, is passed through alloy powder, to complete the beam worker before gun body 100 uses
Make.
As shown in Figure 8, it is further opened with running through the installing hole 115 of rear lance 110, this installation in the center of rear lance 110
Hole 115 communicates with the passage 122 being positioned on insulator 120, is provided with and installs set in axially extended in installing hole 115
116,116 inner hollow are overlapped in this installation, and the outer surface of installation set 116 is convexly equipped with two block 116a and block 116a is against installing hole
On 115 inwalls, it is formed with guiding gutter 116b between described two block 116a and installing hole 115 inwall, this inlet opening 113 and guiding gutter
116b communicates, and offers the diversion gap 117 communicated with guiding gutter 116b in the bottom interior wall of installing hole 115, and this water conservancy diversion lacks
Mouth 117 communicates with third connecting hole 124.
Under normal circumstances, need tungsten electrode is installed in the gun body 100 of plasma gun, therefore, in this gun body 100 structure,
By arranging installation set 116 in the installing hole 115 of rear lance 110, the convenient tungsten electrode installed tungsten electrode and be used for fixing tungsten electrode
Seat.
Meanwhile, in this gun body 100 structure, the inner upper end of rear lance 110 has offered the first air inlet 111, second has entered
Pore 112, the inner upper end of front gun body 130 has offered the second gas port 132, causes the logical of whole gun body 100 inner upper end
Road is many and intensive, in order to avoid each passage concentrates on gun body 100 inner upper end, special by insulator 120 with first annular chamber
The third connecting hole 124 of 133 connections is arranged on the interior lower end of insulator 120, offers diversion gap 117 in installing hole 115
After, inlet opening 113 can be communicated with third connecting hole 124 with diversion gap 117 by guiding gutter 116b, logical to form cooling water
Road, thus avoid multiple passage to concentrate on whole gun body 100 inner upper end, make each passage be more evenly distributed inside gun body 100.
Operation principle of the present utility model is as follows:
First in cooling-water duct, it is passed through cooling water, provides low temperature environment during work for whole gun body 100.
In protection gas passage, it is passed through protective gas whole gun body 100 is carried out gas shield, then plasma (orifice) gas is led to
Plasma gas it is passed through, the gas preparatory stage before making whole gun body 100 be in striking in road.
In powder channel, it is passed through alloy powder, finally opens the power supply of gun body 100, make to be formed in gun body 100 electrode,
After open striking switch, then complete the preparation before welding gun built-up welding.
Specific embodiment described herein is only to this utility model spirit explanation for example.This utility model institute
Belong to those skilled in the art described specific embodiment to make various amendment or supplement or use similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (10)
1. a lance body structure for plasma build-up welding gun, including
Gun body, it is axially arranged；
Plasma (orifice) gas passage, passes in it is penetrated gun body by gun body outer surface and by gun body front end, described plasma (orifice) gas passage position
In gun body center；
Protection gas passage, it penetrates gun body by gun body outer surface and is passed by gun body front end, described protection gas passage have two and
It is positioned at plasma (orifice) gas passage both sides；
Cooling-water duct, is passed by gun body outer surface in it is penetrated gun body by gun body outer surface and behind gun body front end；
Powder channel, it penetrates by gun body rear end and is passed by gun body front end, and powder channel has two and is positioned at plasma (orifice) gas and leads to
Both sides, road.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 1, it is characterised in that: described gun body includes
Rear lance, plasma (orifice) gas passage, protection gas passage, the import of cooling-water duct be respectively positioned on rear lance outer surface, powder
The import of passage is positioned on the rear end face of rear lance；
Front gun body, it is connected with rear lance, and plasma (orifice) gas passage, protection gas passage both pass through front gun body with powder channel, cooling
The outlet of aquaporin is positioned on front gun body outer surface；
Nozzle, it is connected with front gun body, and described plasma (orifice) gas passage runs through nozzle, and described cooling-water duct extends in nozzle,
Powder channel runs through the outlet of nozzle and powder channel and is positioned at plasma (orifice) gas channel outlet both sides, the outlet of described protection gas passage
It is positioned at plasma (orifice) gas channel outlet peripheral.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 2, it is characterised in that: described rear lance
Outer surface offers the first air inlet, is provided centrally with running through the first gas port of front gun body, in nozzle at front gun body
The heart is provided through the first venthole of nozzle, and described first air inlet, the first gas port and the first venthole three communicate also
Plasma (orifice) gas passage described in formation.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 2, it is characterised in that: described rear lance
Outer surface offers two second air inlets, is provided through two second gas ports of front gun body, two second inducing QIs on front gun body
Hole lays respectively at plasma (orifice) gas passage both sides, and described protective cover separates with nozzle and is formed with the chamber of giving vent to anger connecting outside, institute
State the second air inlet, the second gas port, the chamber three that gives vent to anger connect and formed described in protection gas passage.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 2, it is characterised in that: described rear lance
Outer surface offers inlet opening, and the periphery being positioned at plasma channel in front gun body is provided with first annular chamber, in nozzle
The periphery being positioned at plasma channel offers the second annular compartment, and described first annular chamber and the second annular compartment communicate,
Front gun body outer surface offer apopore, inlet opening, first annular chamber, apopore are sequentially communicated and are formed described cold
But aquaporin.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 2, it is characterised in that: on described rear lance
It is provided with two powder entering holes running through rear lance, described front gun body is provided with two powder-guiding holes running through front gun body, on described nozzle
Being tiltedly installed with two flour openings running through nozzle, described flour opening is positioned at plasma channel both sides the outlet with plasma channel
Intersecting, described powder entering hole, powder-guiding hole, flour opening communicate and three forms described powder channel.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 5, it is characterised in that: in rear lance
Portion is provided through the installing hole of rear lance, is provided with installation set in described installing hole, and the outer surface installing set is provided with two gears
Block and block are against on installing hole inwall, be formed between described two blocks guiding gutter and guiding gutter respectively with inlet opening and the first ring
Shape chamber communicates.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 2, it is characterised in that: described gun body is also wrapped
Include protective cover, described protective cover cover on front gun body and and nozzle between form the outlet of described protection gas passage.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 8, it is characterised in that: described gun body is also wrapped
Including insulator, described insulator is connected between rear lance and front gun body and with the two, described plasma (orifice) gas passage, protection gas
Passage, cooling-water duct, powder channel all pass through insulator.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 9, it is characterised in that: described rear lance,
Insulator, front gun body are connected by bolt with nozzle, and described protective cover is threadeded with front gun body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620644474.4U CN205702819U (en) | 2016-06-24 | 2016-06-24 | A kind of lance body structure of plasma build-up welding gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620644474.4U CN205702819U (en) | 2016-06-24 | 2016-06-24 | A kind of lance body structure of plasma build-up welding gun |
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| CN205702819U true CN205702819U (en) | 2016-11-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001879A (en) * | 2016-06-24 | 2016-10-12 | 宁波驰迈激光科技有限公司 | Gun body structure of plasma surfacing welding gun |
-
2016
- 2016-06-24 CN CN201620644474.4U patent/CN205702819U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001879A (en) * | 2016-06-24 | 2016-10-12 | 宁波驰迈激光科技有限公司 | Gun body structure of plasma surfacing welding gun |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 009 35 16-1-5, Xinghai North Road, Ningbo hi tech Zone, Zhejiang, 315000 Patentee after: Ningbo Chi Mai Laser Technology Co., Ltd. Address before: Kaohsiung Beilun District 315800 in Zhejiang province Ningbo city new village Zhu No. 76 Patentee before: Ningbo Chi Mai Laser Technology Co., Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20200624 |
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| CF01 | Termination of patent right due to non-payment of annual fee |