Welding wire feeding device of argon arc welding machine

Abstract

The utility model relates to a wire feeding device, in particular to a welding wire feeding device of an argon arc welding machine. Comprising a box body, a heating cylinder, a heating wire, a motor, a driving wheel, a driven wheel, a sleeve and the like, a heating cylinder is arranged in the box body, the left end of the heating cylinder penetrates through the left end of the box body, a heating wire is arranged in the heating cylinder, a motor is installed in the box body, an output shaft of the motor is connected with a driving wheel, a driven wheel is rotatably arranged in the box body, a sleeve is arranged on the right side of the box body, the sleeve penetrates through the right side of the box body, and through holes are formed in the heating cylinder and the sleeve. Through the design of the heating cylinder and the heating wire, the welding wire can be preheated, the welding wire has a certain temperature before the welding wire is melted, the temperature difference between a welding area and the welding wire is reduced, and therefore thermal stress generated due to rapid temperature change is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wire feeder, especially to an argon arc welding machine wire feeder. BACKGROUND

[0002] Argon arc welding is a kind of welding technology using argon as a protective gas, in the welding process, argon forms a protective gas cover around the arc, isolates air outside the welding area, prevents oxidation of the welding area, thereby ensuring the welding quality, and the welding wire as a filler material can fill the weld, making the weld more uniform, and also helps to control the direction and stability of the arc during welding, and the wire feeder is an important part of ensuring the welding quality.

[0003] Such as the authorized announcement no. CN216575992U a kind of can be sent to wire reverse wire manual welding wire feeder, including upper shell and lower shell, the lower side of the inside of the upper shell is equipped with side-by-side passive main wheel and passive from wheel, welding wire is guided from the upper shell by the passive main wheel and the passive from wheel and sent out via the lower shell.

[0004] The above-mentioned patent lacks the function of preheating the welding wire, and in the process of welding high-alloy welding wire, the temperature difference between the welding wire and the welding area is large, which is easy to produce thermal stress, thereby affecting the quality and strength of the weld. UTILITY MODEL CONTENTS

[0005] In order to overcome the defect that the welding wire is not preheated before welding, the utility model provides an argon arc welding machine welding wire feeder.

[0006] The technical scheme of the utility model is: an argon arc welding machine welding wire feeder, comprising a box body, a heating cylinder, heating wires, a motor, a driving wheel, a driven wheel, a sleeve and a welding wire, the box body is internally provided with the heating cylinder, the left end of the heating cylinder penetrates the left end of the box body, the heating cylinder is internally provided with the heating wires, the box body is internally provided with the motor, the output shaft of the motor is connected with the driving wheel, the box body is rotatably provided with the driven wheel, the right side of the box body is provided with the sleeve, the sleeve penetrates the right side of the box body, the heating cylinder and the sleeve are both provided with through holes, the welding wire sequentially passes through the through hole of the heating cylinder, the gap between the driving wheel and the driven wheel and the through hole of the sleeve from left to right, and the driving wheel and the driven wheel are both in contact with the welding wire.

[0007] Optionally, the side wall of the driving wheel and the driven wheel is provided with a circular arc groove, and the shape of the circular arc groove is matched with the welding wire.

[0008] Optionally, the first guide seat and the second guide seat are further included, the left side of the heating cylinder and the left side of the sleeve are provided with the first guide seat, a first guide hole is formed in the middle of the first guide seat, the diameter of the left side of the first guide hole is larger than the cross-sectional diameter of the welding wire, the diameter of the right side of the first guide hole is the same as the cross-sectional diameter of the welding wire, the leftmost end of the first guide seat is arc-shaped, the right side of the heating cylinder is provided with the second guide seat, a second guide hole is formed in the middle of the second guide seat, the second guide hole is similar to the first guide hole, and the right side diameter is consistent with the cross-sectional diameter of the welding wire.

[0009] Optionally, the transparent part is further included, and the middle of the upper side of the box body is the transparent part.

[0010] Optionally, the heat dissipation fins are further included, and the front and back sides of the box body are provided with the heat dissipation fins.

[0011] Optionally, the heating cylinder is made of heat insulation material.

[0012] Beneficial effects are: 1, the utility model discloses a heating cylinder and heating wire design, can carry out preheating to welding wire, makes welding wire have certain temperature before carrying out welding wire melting, reduces the temperature difference between the welding area and welding wire, thereby reduce the thermal stress generated due to the temperature change sharply, simultaneously, preheating can make welding wire reach melting point more quickly, help it to fuse with the base material better, form more firm and high quality welding seam.

[0013] 2, the utility model discloses a first guide seat and the design of the second guide seat can effectively correct the position of welding wire, ensure that welding wire can accurately and without error in and out of the heating cylinder and sleeve, through the design of the transparent part, the user can directly observe the working state inside the box body, is convenient for finding and solving problems in time, welding wire's installation and replacement process are more convenient simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0015] Figure 2 It is the sectional view of the box body of the utility model.

[0016] Figure 3 It is the sectional view of the heating cylinder of the utility model.

[0017] Figure 4 It is the three-dimensional structure schematic diagram of the motor, driving wheel and driven wheel of the utility model.

[0018] Markings in the drawings: 1_box body, 101_transparent part, 2_mounting seat, 3_heating cylinder, 4_heating wire, 5_motor, 6_driving wheel, 61_circular arc groove, 7_driven wheel, 8_sleeve, 9_welding wire, 10_first guide seat, 11_second guide seat, 12_heat dissipation fin. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] An argon arc welding machine welding wire feeding device, as shown in Figures 1-4 The box body 1 is internally provided with the mounting seat 2, the mounting seat 2 is fixedly provided with the heating cylinder 3, the left end of the heating cylinder 3 penetrates the left end of the box body 1, the heating cylinder 3 is internally provided with the heating wire 4, the heating wire 4 is uniformly distributed around the inside of the heating cylinder 3, and uniform heat distribution is ensured, the box body 1 is internally provided with the motor 5, the output shaft of the motor 5 is connected with the driving wheel 6, the box body 1 is rotatably provided with the driven wheel 7, the driving wheel 6 and the driven wheel 7 are located at the same horizontal plane and there is a gap therebetween, the box body 1 is provided with the sleeve 8 at the right side, the sleeve 8 penetrates the right side of the box body 1, the heating cylinder 3 and the sleeve 8 are both provided with through holes at the left and right sides, the through holes on the heating cylinder 3 and the sleeve 8 are in central correspondence, the welding wire 9 sequentially penetrates the through hole of the heating cylinder 3, the gap between the driving wheel 6 and the driven wheel 7 and the through hole on the sleeve 8 from left to right, and the driving wheel 6 and the driven wheel 7 are both in contact with the welding wire 9.

[0021] In use, the welding wire 9 first penetrates the through hole of the heating cylinder 3 from the left side of the box body 1, then the welding wire 9 enters the gap formed by the driving wheel 6 and the driven wheel 7, and finally penetrates the through hole of the sleeve 8 and extends out from the right side of the box body 1, the heating wire 4 is started, the heating wire 4 preheats the welding wire 9, the temperature of the welding wire 9 is raised, the motor 5 drives the driving wheel 6 to rotate, the welding wire 9 is pushed to the right through the pressure between the driving wheel 6 and the driven wheel 7, the sleeve 8 ensures that the welding wire 9 can be linearly and stably output from the box body 1, and bending or deviation of the welding wire 9 when leaving the box body 1 is avoided.

[0022] The side walls of the driving wheel 6 and the driven wheel 7 are both provided with arc grooves 61, the shape of the arc grooves 61 is adapted to the welding wire 9, the arc grooves 61 can guide the welding wire 9 to advance along the expected path, prevent the welding wire 9 from being separated from the driving wheel 6 or the driven wheel 7 in the moving process, and ensure the stability of the wire feeding process.

[0023] As shown in Figure 3As shown, the first guide seat 10 and the second guide seat 11 are further included, the first guide seat 10 is arranged on the left side of the heating cylinder 3 and the sleeve 8, the first guide seat 10 is provided with a first guide hole in the middle, the diameter of the left side of the first guide hole is larger than the cross-sectional diameter of the welding wire 9, the diameter of the right side of the first guide hole is the same as the cross-sectional diameter of the welding wire 9, the leftmost end of the first guide seat 10 is arc-shaped, the second guide seat 11 is arranged on the right side of the heating cylinder 3, the second guide seat 11 is provided with a second guide hole in the middle, the second guide hole is similar to the first guide hole, the right side diameter is consistent with the cross-sectional diameter of the welding wire 9, and the left side is wide, the first guide hole and the second guide hole are both corresponded to the center of the through hole on the heating cylinder 3 and the sleeve 8, the diameters of the first guide hole and the second guide hole are gradually reduced from left to right, which is helpful to correct the position of the welding wire 9, ensure the welding wire 9 to smoothly enter and exit the heating cylinder 3 and the sleeve 8, and reduce various problems caused by position deviation.

[0024] As shown in the drawings, Figure 1 The transparent part 101 is further included, the middle of the upper side of the box body 1 is the transparent part 101, the transparent part 101 enables the user to intuitively observe the working state inside the box body 1, including the position of the welding wire 9, the heating condition of the heating cylinder 3 and the running state of the driving wheel 6 and the driven wheel 7, etc., at the same time, when the welding wire 9 is replaced or initially installed, the transparent part 101 can enable the operator to intuitively observe the inside of the box body 1, so as to adjust the position and direction of the welding wire 9.

[0025] As shown in the drawings, Figure 1 The heat dissipation fins 12 are further included, the heat dissipation fins 12 are arranged on the front and rear sides of the box body 1, the heat dissipation fins 12 are located in the middle of the side wall of the box body 1 and are left-biased and close to the middle of the heating cylinder 3, the heat dissipation fins 12 can improve the heat dissipation capacity of the box body 1, so that the temperature inside the box body 1 is not too high, and the other components inside the box body 1 are protected from damage.

[0026] The heating cylinder 3 is made of heat insulation material, which reduces the heat transfer of the heating cylinder 3 to the surrounding environment when working, improves the heating efficiency, and reduces the heat influence on other components inside the box body 1.

[0027] The skilled in the art should understand that the above embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. A wire feeding device for an argon arc welding machine, comprising a housing (1), a motor (5), a drive wheel (6), and a driven wheel (7), wherein the motor (5) is installed inside the housing (1), the output shaft of the motor (5) is connected to the drive wheel (6), and the driven wheel (7) is rotatably provided inside the housing (1), characterized in that: It also includes a heating cylinder (3), a heating wire (4), a sleeve (8) and a welding wire (9). The heating cylinder (3) is provided inside the box body (1). The left end of the heating cylinder (3) passes through the left end of the box body (1). The heating wire (4) is provided inside the heating cylinder (3). The sleeve (8) is provided on the right side of the box body (1). The sleeve (8) passes through the right side of the box body (1). Both the heating cylinder (3) and the sleeve (8) have through holes. The welding wire (9) passes through the through hole of the heating cylinder (3), the gap between the driving wheel (6) and the driven wheel (7) and the through hole on the sleeve (8) from left to right. Both the driving wheel (6) and the driven wheel (7) are in contact with the welding wire (9).

2. The wire feeding device for an argon arc welding machine according to claim 1, characterized in that: Both the driving wheel (6) and the driven wheel (7) have circular arc grooves (61) on their side walls, and the shape of the circular arc grooves (61) is adapted to the welding wire (9).

3. The wire feeding device for an argon arc welding machine according to claim 2, characterized in that: It also includes a first guide seat (10) and a second guide seat (11). The first guide seat (10) is provided on the left side of the heating cylinder (3) and the left side of the sleeve (8). The first guide seat (10) has a first guide hole in the middle. The diameter of the left side of the first guide hole is larger than the diameter of the welding wire (9) section. The diameter of the right side of the first guide hole is the same as the diameter of the welding wire (9) section. The leftmost end of the first guide seat (10) is arc-shaped. The second guide seat (11) is provided on the right side of the heating cylinder (3). The second guide seat (11) has a second guide hole in the middle. The second guide hole is similar to the first guide hole. The diameter of the right side is the same as the diameter of the welding wire (9) section, and the left side is wide.

4. The wire feeding device for an argon arc welding machine according to claim 3, characterized in that: It also includes a transparent section (101), with the upper middle part of the box (1) being the transparent section (101).

5. The wire feeding device for an argon arc welding machine according to claim 4, characterized in that: It also includes heat sinks (12), with heat sinks (12) provided on both the front and rear sides of the casing (1).

6. The wire feeding device for an argon arc welding machine according to claim 5, characterized in that: The heating cylinder (3) is made of heat-insulating material.

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