CN211162346U

CN211162346U - Welding gun structure of electric spark surfacing repair machine

Info

Publication number: CN211162346U
Application number: CN201922379295.9U
Authority: CN
Inventors: 许克生; 张建成
Original assignee: Anhui Huasheng Electromechanical Group Co ltd
Current assignee: Anhui Huasheng Electromechanical Group Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-08-04
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses an electric spark build-up welding repairing machine welder structure, include: the welding gun comprises a welding gun front cover, a welding wire chuck, a threaded sleeve, a fastening screw, an outer sleeve, a clamp spring, a first bearing, a main shaft assembly, a spring, a carbon brush assembly, an inner sleeve, a second bearing, an insulating coupling, a motor coupling, a speed reduction motor assembly, a first screw, a handheld gun sleeve and a second screw. The carbon brush assembly structure of the utility model is not easy to generate electric spark and electric erosion, so that the structure of the carbon brush body is reduced, and the carbon brush wire is not exposed outside, so that the welding gun can be stably and safely used; the carbon brush is arranged on the inner side of the outer sleeve, the carbon brush is tightly attached to the outer side of the brass sleeve of the main shaft assembly through the elasticity of the spring to form reliable electric conduction, and the outer sleeve, the threaded sleeve and the insulating coupler are made of non-metallic materials, so that the heat insulation and insulation effects of the welding gun are improved; the carbon brush assembly is sealed inside the gun body, and metal particles splashed outside cannot enter the gun body.

Description

Welding gun structure of electric spark surfacing repair machine

Technical Field

The utility model relates to a technical welding device field specifically is an electric spark build-up welding repairing machine welder structure.

Background

Electric spark build-up welding repairing machine welder is important electromechanical device, is 201720039157.4 a water-cooling electric spark repairing machine welder like application number, including welding wire chuck, carbon brush fixed body, rifle shell, afterbody flange, water-cooling body, first water pipe, second water pipe, motor, cable clamp splice, chaining cable, hydrologic cycle chamber, rifle axle, cable connection piece, spring insulation frame, spring and bearing, the carbon brush fixed body sets up the front end of water-cooling body, the spring sets up the rear end of carbon brush fixed body, the carbon brush inlays the front end of carbon brush fixed body. The carbon brush fixing body and the carbon brush are driven to move back and forth through the spring, the water cooling body is fixed, the bearing is directly attached to the water cooling body, the bearing is cooled, the cooling effect is good, the service life is prolonged, meanwhile, the spring only pushes the carbon brush fixing body and the carbon brush, the weight is light, the carbon brush fixing body and the carbon brush are not interfered by other factors, and the pushing effect is good.

In the existing cold welding technology, the following defects are often appeared during the operation of a welding gun: 1. metal splash particles are generated during overlaying of the welding wire and the workpiece and then fall between the carbon brush structure and the welding wire chuck, so that a gap is generated between the carbon brush structure and the welding wire chuck, and the carbon brush structure and the welding wire chuck vibrate to generate electric spark and electric erosion; 2. the electric spark erosion can continuously damage the carbon brush body, so that the carbon brush is quickly consumed and damaged, and meanwhile, the vibration of the carbon brush structure can continuously pull the wire, so that the wire end is easy to fall off, and finally, the welding gun cannot work, the normal use is influenced, and the service efficiency and the service life are reduced.

Therefore, the existing welding gun of the electric spark overlaying repair machine needs to be improved and optimized so as to meet the actual use requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric spark build-up welding repairing machine welder structure can effectual improvement welder life-span and availability factor to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a welding gun structure of an electric spark overlaying repair machine comprises: the welding gun comprises a welding gun front cover, a welding wire chuck, a threaded sleeve, a fastening screw, an outer sleeve, a clamp spring, a first bearing, a main shaft assembly, a spring, a carbon brush assembly, an inner sleeve, a second bearing, an insulating coupling, a motor coupling, a speed reduction motor assembly, a first screw, a handheld gun sleeve and a second screw;

the carbon brush assembly comprises a carbon brush body and a wire, and the speed reduction motor assembly comprises a speed reduction motor and a motor connecting plate;

the welding gun front cover is arranged at the front end of the welding wire chuck, the welding wire chuck is fixed on the main shaft assembly, the main shaft assembly is fixed in the inner sleeve through a bearing I and a bearing II, the clamp spring is used for fixing the axial positioning of the main shaft assembly, the carbon brush assemblies are distributed and installed on two sides of the main shaft assembly and symmetrically installed in the outer sleeve, the spring enables a carbon brush body of the carbon brush assembly to be tightly attached to a brass sleeve of the main shaft assembly, and a lead of the carbon brush assembly penetrates through the inner sleeve and the motor connecting plate;

the thread bush is fixed at the front end of the inner sleeve through two fastening screws, the motor connecting plate is fixedly connected with the speed reducing motor, the motor connecting plate is installed at the tail part of the inner sleeve through a first screw, the insulating coupler and the motor coupler are installed between the tail part of the main shaft assembly and the front part of the speed reducing motor shaft, and the handheld gun sleeve is installed at the tail part of the outer sleeve through a second screw.

Preferably, the carbon brush assembly is provided with 2 carbon brush assemblies and symmetrically distributed on the circumferential surface of the inner sleeve.

Preferably, the length of the inner sleeve structure is set to be 20mm-200 mm.

Preferably, the main shaft and the brass sleeve are connected in an interference fit mode, and the main shaft assembly and the inner sleeve are fixedly installed sequentially through the clamp spring, the first bearing and the second bearing.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the carbon brush assembly structure of the utility model is not easy to generate electric spark and electric erosion, so that the structure of the carbon brush body is reduced, and the carbon brush wire is not exposed outside, so that the welding gun can be stably and safely used;

2. the utility model has the advantages that the carbon brush is arranged at the inner side of the outer sleeve, the carbon brush is tightly attached to the outer side of the brass sleeve of the main shaft assembly through the elasticity of the spring to form reliable electric conduction, and the outer sleeve, the threaded sleeve and the insulating coupler all use non-metallic materials, thereby improving the heat insulation and insulation effects of the welding gun;

3. the utility model discloses seal the carbon brush subassembly at the internal portion of rifle, the outside unable entering of metal particles that splashes.

Drawings

Fig. 1 is an exploded view of the overall structure of the present invention;

FIG. 2 is a schematic view of the front section split structure of the present invention;

FIG. 3 is a schematic diagram of the rear-end split structure of the present invention;

FIG. 4 is a cross-sectional view of the overall structure of the present invention;

fig. 5 is a schematic view of the overall structure of the present invention;

fig. 6 is a schematic view of the split structure of the hand-held holster according to the present invention;

fig. 7 is a schematic structural view of a carbon brush assembly according to the present invention;

fig. 8 is a schematic structural view of the speed reduction motor assembly of the present invention;

fig. 9 is a schematic view of the inner sleeve structure of the present invention;

fig. 10 is a schematic structural view of the spindle assembly of the present invention;

fig. 11 is a cross-sectional view of the spindle assembly of the present invention.

In the figure: 1 welding gun front cover, 2 welding wire chucks, 3 thread sleeves, 4 set screws, 5 outer sleeves, 6 clamp springs, 7 bearing I, 8 main shaft assemblies, 81 main shafts, 82 brass sleeves, 9 springs, 10 carbon brush assemblies, 101 carbon brush bodies, 102 conducting wires, 11 inner sleeves, 12 bearing II, 13 insulation couplings, 14 motor couplings, 15 speed reducing motor assemblies, 151 motor connecting plates, 152 speed reducing motors, 16 screw I, 17 handheld gun sleeves and 18 screw II.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-11, the present invention provides a technical solution:

a welding gun structure of an electric spark overlaying repair machine comprises: the welding gun comprises a welding gun front cover 1, a welding wire chuck 2, a threaded sleeve 3, a set screw 4, an outer sleeve 5, a clamp spring 6, a first bearing 7, a main shaft assembly 8, a spring 9, a carbon brush assembly 10, an inner sleeve 11, a second bearing 12, an insulating coupling 13, a motor coupling 14, a speed reduction motor assembly 15, a first screw 16, a handheld gun sleeve 17 and a second screw 18, wherein the parts are sequentially connected and mounted according to the sequence of the figure 1 in the specification, so that the welding gun is formed.

The spindle assembly 8 is composed of a spindle 81 and a brass sleeve 82, the brass sleeve 82 is sleeved on the outer side wall of the spindle 81, the carbon brush assembly 10 comprises a carbon brush body 101 and a lead 102, the carbon brush body 101 is fixedly connected with the lead 102, the speed reduction motor assembly 15 comprises a speed reduction motor 152 and a motor connecting plate 151, and the motor connecting plate 151 is fixed on the speed reduction motor 152 through four screws to form the speed reduction motor assembly 15.

The welding gun front cover 1 is arranged at the front end of the welding gun chuck 2, the welding gun chuck 2 is fixed on a main shaft assembly 8, the main shaft assembly 8 is fixed inside an inner sleeve 11 through a bearing I7 and a bearing II 12, a clamp spring 6 fixes the axial positioning of the main shaft assembly 8, the main shaft assembly 8 cannot move in the axial direction, and the loosening condition cannot occur, carbon brush assemblies 10 are distributed and installed at two sides of the main shaft assembly 8 and are symmetrically installed inside an outer sleeve 5, a spring 9 enables a carbon brush body 101 of the carbon brush assembly 10 to be tightly attached to a brass sleeve 82 of the main shaft assembly 8, a lead 102 of the carbon brush assembly 10 sequentially penetrates through the inner sleeve 11 and a motor connecting plate 152, the carbon brush assemblies 10 are all installed inside the outer sleeve 5, a threaded sleeve 3 and an insulating coupler 13 are all made of non-metal materials, the heat insulation and insulating effect of a, the external splash metal particles cannot enter.

The thread bush 3 is fixed at the front end of the inner bush 11 through two set screws 4, the motor connecting plate 151 is fixedly connected with the gear motor 152, the motor connecting plate 151 is installed at the tail part of the inner bush 11 through a first screw 16, the insulating coupler 13 and the motor coupler 14 are installed between the tail part of the spindle assembly 8 and the front part of the gear motor 152 shaft, and the output shaft end of the gear motor 152 penetrates through the motor connecting plate 151, so that the output shaft of the gear motor 152 is connected with the motor coupler 14, the handheld gun bush 17 is installed at the tail part of the outer bush 5 through a second screw 18, and the handheld gun bush 17 is used for being grasped by the.

Preferably, as shown in fig. 3 of the specification, the carbon brush assemblies 10 are provided with 2 carbon brush assemblies and symmetrically distributed on the circumferential surface of the inner sleeve 11, the inner sleeve 11 is provided with a groove for inserting the carbon brush assemblies 10, and in the working process, the carbon brush assemblies 10 are not moved, and the main shaft assembly 8 makes a rotation motion.

Preferably, as shown in fig. 9 of the specification, the inner sleeve 11 is set to have a length of 20mm to 200mm, and is used to correspondingly implement the functions of inserting and installing the threaded sleeve 3, the spindle assembly 8, the carbon brush assembly 10, the speed reduction motor assembly 15 and the outer sleeve 5.

Preferably, the main shaft 81 and the brass sleeve 82 are connected in an interference fit manner, the main shaft 81 and the brass sleeve 82 are connected better in a manner of interference fit, and the main shaft assembly 8 and the inner sleeve 11 are fixedly mounted sequentially through the snap spring 6, the first bearing 7 and the second bearing 12, so that the connection manner between the inner sleeve 11 and the main shaft assembly 8 is realized.

The working principle is as follows: the utility model discloses a gear motor 152 drive spindle assembly 8 carries out rotary motion, drive the 2 continuous rotary motion of welding wire chuck simultaneously, welder's electric current is conducted to welding wire chuck 2 by spindle assembly 8 again through carbon brush subassembly 10 simultaneously, carbon brush subassembly 10 keeps motionless, spindle assembly 8 is rotary motion, make the brass cover 82 outside of carbon brush body 101 and spindle assembly 8 closely laminate through spring 9, with this conduction heavy current, this welder compact structure, no electric spark erosion phenomenon, in order to reach wire 102 and not expose outside, the effect of weight lightness and life extension.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electric spark build-up welding repairing machine welder structure which characterized in that includes: the welding gun comprises a welding gun front cover (1), a welding wire chuck (2), a threaded sleeve (3), a set screw (4), an outer sleeve (5), a clamp spring (6), a bearing I (7), a main shaft assembly (8), a spring (9), a carbon brush assembly (10), an inner sleeve (11), a bearing II (12), an insulating coupler (13), a motor coupler (14), a speed reducing motor assembly (15), a screw I (16), a handheld gun sleeve (17) and a screw II (18);

the main shaft assembly (8) comprises a main shaft (81) and a brass sleeve (82), the carbon brush assembly (10) comprises a carbon brush body (101) and a conducting wire (102), and the speed reduction motor assembly (15) comprises a speed reduction motor (152) and a motor connecting plate (151);

the welding gun front cover (1) is arranged at the front end of the welding gun chuck (2), the welding gun chuck (2) is fixed on a main shaft assembly (8), the main shaft assembly (8) is fixed inside an inner sleeve (11) through a first bearing (7) and a second bearing (12), a clamp spring (6) is used for fixing the axial positioning of the main shaft assembly (8), the carbon brush assemblies (10) are distributed and installed on two sides of the main shaft assembly (8) and symmetrically installed inside an outer sleeve (5), a spring (9) enables a carbon brush body (101) of each carbon brush assembly (10) to be tightly attached to a brass sleeve (82) of the main shaft assembly (8), and a lead (102) of each carbon brush assembly (10) penetrates through the inner sleeve (11) and a motor connecting plate (151);

thread bush (3) are fixed at endotheca (11) front end through two holding screw (4), motor connecting plate (151) and gear motor (152) fixed connection, install at endotheca (11) afterbody through screw (16) motor connecting plate (151), install between main shaft assembly (8) afterbody and gear motor (152) axle front portion insulating coupling (13) and motor coupling (14), handheld gun case (17) are installed at overcoat (5) afterbody through screw two (18).

2. The electric spark overlaying repair machine welding gun structure according to claim 1, wherein: the carbon brush assembly (10) is provided with 2 carbon brush assemblies which are symmetrically distributed on the circumferential surface of the inner sleeve (11).

3. The electric spark overlaying repair machine welding gun structure according to claim 1, wherein: the structural length of the inner sleeve (11) is set to be 20mm-200 mm.

4. The electric spark overlaying repair machine welding gun structure according to claim 1, wherein: the main shaft (81) is connected with the brass sleeve (82) in an interference fit mode, and the main shaft assembly (8) and the inner sleeve (11) are fixedly installed sequentially through the clamp spring (6), the first bearing (7) and the second bearing (12).