Reciprocating rotation type micro arc welding work gun

Abstract

The invention discloses a reciprocating rotation type micro arc welding working gun. Comprising an outer shell, a reciprocating rotating motor arranged in the outer shell, a rotating seat which is arranged at the output end of the reciprocating rotating motor and penetrates to the surface of the front end of the outer shell, a discharge electrode which is arranged at the end part of the rotating seat and can rotate in a reciprocating manner, and a flexible cable which is connected to the rear end of the reciprocating rotating motor and is led out to the surface of the rear end of the outer shell, the motor controller is mounted on the inner side of the outer shell and connected with the reciprocating rotating motor; the movable protective cylinder and the annular cylinder base are movably arranged on the surface of the outer shell in a sleeving mode. By adopting the reciprocating rotary discharge electrode, a carbon brush is omitted, the problems of poor contact, unstable resistance and the like of the carbon brush are avoided, and the discharge efficiency and the welding quality are improved; due to the use of the flexible cable, the influence of high temperature and mechanical wear on equipment is reduced, and the service life of the working gun is prolonged; the motor controller can accurately control parameters such as the rotating angle and the rotating speed of the motor, so that the welding process is more stable and controllable.

Description

Technical Field

[0001] The invention belongs to the technical field of electric spark micro-arc welding machines, and in particular relates to a reciprocating rotary micro-arc welding working gun. Background Art

[0002] The micro arc electric spark welding machine has been widely used. The structure of its working gun is mainly divided into two types: rotary working gun and ultrasonic vibration working gun. At present, the rotary working gun is widely used due to its working efficiency and stability. However, when the discharge electrode of the traditional rotary working gun rotates, the power supply can only be drawn by the carbon brush. This method has the following defects:

[0003] 1. Poor contact of carbon brushes leads to power loss and reduces discharge efficiency.

[0004] 2. The instability of the carbon brush contact resistance makes the discharge power unstable, which in turn affects the welding quality.

[0005] 3. The contact resistance of the carbon brush and the electric sparks generated during contact will generate high temperature, which will shorten the continuous working time of the working gun.

[0006] 4. The carbon brush contact produces mechanical wear, which increases the number of wearing parts, easily causes failures and reduces the service life.

[0007] For this purpose, the present invention provides a reciprocating rotary micro-arc welding working gun. Summary of the invention

[0008] The purpose of the present invention is to provide a reciprocating rotary micro-arc welding working gun to solve the problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solution: a reciprocating rotary micro-arc welding working gun, comprising

[0010] An outer shell, a reciprocating rotating motor installed inside the outer shell, a rotating seat installed at the output end of the reciprocating rotating motor and penetrating to the front end surface of the outer shell, a discharge electrode installed at the end of the rotating seat and capable of reciprocating rotation, a flexible cable connected to the rear end of the reciprocating rotating motor and led to the rear end surface of the outer shell, and a motor controller installed inside the outer shell and connected to the reciprocating rotating motor;

[0011] And a movable sleeve and an annular sleeve seat movably sleeved on the surface of the outer shell, the movable sleeve and the annular sleeve seat are an integrated structure, and the front end surface of the movable sleeve is provided with a through hole corresponding to the rotating seat.

[0012] Preferably, two guide slide blocks are symmetrically fixed to the inner wall of the movable casing, and two guide grooves corresponding to the guide slide blocks are symmetrically provided on the surface of the outer shell, and the guide slide blocks are slidably located in the guide grooves.

[0013] Preferably, two inner grooves are symmetrically provided inside the front end of the outer shell, and springs and movable beads are installed in the inner grooves. The front end inner wall and the rear end inner wall of the movable protective tube both have two circular grooves corresponding to the movable beads. The movable beads are movably installed in the inner grooves by means of springs, and the end of the movable beads pops out into one of the circular grooves.

[0014] Preferably, one end of the spring is fixed to the inner wall of the inner groove, and the other end of the spring is fixed to the movable bead.

[0015] Preferably, a mounting seat for mounting the motor controller is fixed to the inner wall of the outer shell, and a rectangular mounting groove adapted to the motor controller is formed on the top of the mounting seat.

[0016] Preferably, a mounting foot is fixed to the bottom surface of the motor controller, side sliders are fixed to both side surfaces of the motor controller, and side sliding grooves corresponding to the side sliders are opened on both side inner walls of the rectangular mounting groove, and the side sliders slide into the side sliding grooves. Fixing screws are provided on the mounting foot, and the mounting foot is fixed in the rectangular mounting groove by the fixing screws.

[0017] Preferably, two limit seats are fixed to the inner wall of the outer shell, and the front end of the reciprocating rotating motor is in contact with the limit seats.

[0018] Preferably, two limiting end feet corresponding to the limiting seat are symmetrically fixed to the front end surface of the reciprocating rotating motor, and the end of the limiting end foot passes through one side of the limiting seat.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By adopting reciprocating rotating discharge electrodes, the carbon brush is eliminated, avoiding problems such as poor contact of the carbon brush and unstable resistance, and improving the discharge efficiency and welding quality.

[0021] 2. The use of flexible cables reduces the impact of high temperature and mechanical wear on the equipment and extends the service life of the working gun.

[0022] 3. The motor controller can accurately control the motor's rotation angle, speed and other parameters, making the welding process more stable and controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 is a cross-sectional view of the present invention;

[0025] Figure 3 For the present invention Figure 2A partial enlarged view of the middle A area;

[0026] Figure 4 For the present invention Figure 2 A partial enlarged view of the middle B area;

[0027] Figure 5 For the present invention Figure 2 A partial enlarged view of the middle C area;

[0028] Figure 6 For the present invention Figure 2 A partial enlarged view of the D area in the middle;

[0029] In the figure: 1. outer shell; 11. mounting seat; 111. rectangular mounting groove; 112. side slide groove; 12. guide slide groove; 13. limit seat; 2. rotating seat; 3. discharge electrode; 4. flexible cable; 51. movable protective sleeve; 52. annular sleeve seat; 53. through hole; 54. guide slider; 55. inner groove; 56. spring; 57. movable card bead; 58. circular card groove; 6. reciprocating rotary motor; 61. limit end foot; 7. motor controller; 71. mounting foot; 72. fixing screw. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1

[0032] See also Figures 1 to 4 , which is the first embodiment of the present invention, and this embodiment provides a technical solution: a reciprocating rotary micro-arc welding working gun, comprising

[0033] An outer shell 1, a reciprocating rotating motor 6 installed inside the outer shell 1, a rotating seat 2 installed at the output end of the reciprocating rotating motor 6 and extending through the front end surface of the outer shell 1, a discharge electrode 3 installed at the end of the rotating seat 2 and capable of reciprocating between 0° and 360°, a flexible cable 4 connected to the rear end of the reciprocating rotating motor 6 and leading to the rear end surface of the outer shell 1, and a motor controller 7 installed inside the outer shell 1 and connected to the reciprocating rotating motor 6, wherein the rotation angle and rotation speed of the discharge electrode 3 are adjustable, and the reciprocating rotating motor 6 can be a servo motor or a stepper motor. The motor controller 7 can accurately control the reciprocating rotating motor 6 to make reciprocating rotation, and can also accurately adjust and set the speed and rotation angle of the reciprocating rotating motor 6. The discharge electrode 3 of the present invention is reciprocatingly rotating during operation, that is, the discharge electrode 3 rotates 360° clockwise and then rotates 360° counterclockwise, so that the flexible cable 4 can be used for connection, thereby eliminating the carbon brush and solving the above-mentioned various drawbacks. When the working gun is working, the rotation angle of the discharge electrode 3 is controlled to make the welding point discharge evenly at the end of the discharge electrode 3, so as to achieve stable welding;

[0034] And a movable shield 51 and an annular cartridge seat 52 movably sleeved on the surface of the outer shell 1, the movable shield 51 and the annular cartridge seat 52 are an integrated structure, and a through hole 53 corresponding to the rotating seat 2 is opened on the front end surface of the movable shield 51. When the gun body is stopped in the later stage, the movable shield 51 can be slid forward so that the front end of the movable shield 51 can cover the discharge electrode 3 on the inside, thereby effectively protecting and shielding the discharge electrode 3 during the stop period, preventing foreign objects from colliding with the discharge electrode 3 and causing unnecessary damage.

[0035] In this embodiment, preferably, two guide slide blocks 54 are symmetrically fixed to the inner wall of the movable casing 51, and two guide grooves 12 corresponding to the guide slide blocks 54 are symmetrically opened on the surface of the outer casing 1. The guide slide blocks 54 are slidably located in the guide grooves 12, so that the movable casing 51 can slide back and forth smoothly on the surface of the outer casing 1.

[0036] In this embodiment, preferably, two inner grooves 55 are symmetrically provided inside the front end of the outer shell 1, and springs 56 and movable beads 57 are installed in the inner grooves 55. The front inner wall and the rear inner wall of the movable sleeve 51 are both provided with two circular grooves 58 corresponding to the movable beads 57. The movable beads 57 are movably installed in the inner grooves 55 through the springs 56, and the ends of the movable beads 57 pop out into one of the circular grooves 58, so that the movable sleeve 51 can be engaged and limited after sliding forward and backward. When the operator slides the movable sleeve 51 forward, the movable beads 57 The end portion will be squeezed and squeezed into the inner groove 55, so that the movable shield 51 can slide forward smoothly until the guide slider 54 slides to the front end of the guide slide groove 12 and cannot slide further. At this time, the end portion of the movable clamping bead 57 will be pushed by the spring 56 and clamped into the circular clamping groove 58 located on the inner wall of the rear end of the movable shield 51, so that the movable shield 51 can be limited after sliding forward, so that the movable shield 51 can stably protect the discharge electrode 3. When the welding gun needs to be activated later, the movable shield 51 only needs to be pushed back to cause the discharge electrode 3 to leak out.

[0037] In this embodiment, preferably, one end of the spring 56 is fixed to the inner wall of the inner groove 55 , and the other end of the spring 56 is fixed to the movable bead 57 .

[0038] Example 2

[0039] See also Figures 1 to 6 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment, and the difference is that a mounting base 11 for installing the power supply motor controller 7 is welded and fixed to the inner wall of the outer shell 1, and a rectangular mounting groove 111 adapted to the motor controller 7 is provided on the top of the mounting base 11, and a mounting foot 71 is fixed to the bottom surface of the motor controller 7, and side sliders are fixed to the two side surfaces of the motor controller 7, and side sliding grooves 112 corresponding to the side sliding grooves are provided on the inner walls on both sides of the rectangular mounting groove 111, and the side sliding grooves 112 corresponding to the side sliding grooves are provided, and the side sliding grooves 112 slide into the side sliding grooves 112, and fixing screws 72 are provided on the mounting feet 71, and the mounting feet 71 are fixed in the rectangular mounting grooves 111 by the fixing screws 72, so as to realize the stable installation of the motor controller 7.

[0040] In this embodiment, preferably, two limit seats 13 are welded and fixed to the inner wall of the outer shell 1, and the front end of the reciprocating rotating motor 6 is in contact with the limit seat 13, and two limit end feet 61 corresponding to the limit seats 13 are symmetrically fixed to the front end surface of the reciprocating rotating motor 6, and the end of the limit end foot 61 passes through one side of the limit seat 13, so that the reciprocating rotating motor 6 can be stably installed.

[0041] Although embodiments of the present invention have been shown and described (see the above detailed description for details), it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reciprocating rotary micro-arc welding working gun, characterized in that: include An outer shell (1), a reciprocating rotating motor (6) installed inside the outer shell (1), a rotating seat (2) installed at the output end of the reciprocating rotating motor (6) and extending through the front end surface of the outer shell (1), a discharge electrode (3) installed at the end of the rotating seat (2) and capable of reciprocating rotation, a flexible cable (4) connected to the rear end of the reciprocating rotating motor (6) and leading out to the rear end surface of the outer shell (1), and a motor controller (7) installed inside the outer shell (1) and connected to the reciprocating rotating motor (6); and a movable sleeve (51) and an annular sleeve seat (52) movably sleeved on the surface of the outer shell (1); the movable sleeve (51) and the annular sleeve seat (52) are an integrated structure, and a through hole (53) corresponding to the rotating seat (2) is formed on the front end surface of the movable sleeve (51).

2. A reciprocating rotary micro-arc welding gun according to claim 1, characterized in that: Two guide slide blocks (54) are symmetrically fixed on the inner wall of the movable casing (51), and two guide slide grooves (12) corresponding to the guide slide blocks (54) are symmetrically provided on the surface of the outer casing (1), and the guide slide blocks (54) are slidably located in the guide slide grooves (12).

3. The reciprocating rotary micro-arc welding gun according to claim 1, characterized in that: Two inner grooves (55) are symmetrically formed inside the front end of the outer shell (1), and a spring (56) and an active clamping bead (57) are installed in the inner grooves (55). The front inner wall and the rear inner wall of the movable protective tube (51) are both provided with two circular clamping grooves (58) corresponding to the active clamping bead (57). The active clamping bead (57) is movably installed in the inner grooves (55) through the spring (56), and the end of the active clamping bead (57) pops out into one of the circular clamping grooves (58).

4. The reciprocating rotary micro-arc welding gun according to claim 3, characterized in that: One end of the spring (56) is fixed to the inner wall of the inner groove (55), and the other end of the spring (56) is fixed to the movable clamping bead (57).

5. The reciprocating rotary micro-arc welding gun according to claim 1, characterized in that: A mounting seat (11) for mounting the motor controller (7) is fixed to the inner wall of the outer shell (1), and a rectangular mounting groove (111) adapted to the motor controller (7) is provided on the top of the mounting seat (11).

6. The reciprocating rotary micro-arc welding gun according to claim 5, characterized in that: A mounting foot (71) is fixed to the bottom surface of the motor controller (7), side slide blocks are fixed to both side surfaces of the motor controller (7), and side slide grooves (112) corresponding to the side slide blocks are provided on both side inner walls of the rectangular mounting groove (111), and the side slide blocks slide into the side slide grooves (112), and fixing screws (72) are provided on the mounting foot (71), and the mounting foot (71) is fixed in the rectangular mounting groove (111) by the fixing screws (72).

7. The reciprocating rotary micro-arc welding gun according to claim 1, characterized in that: Two limit seats (13) are also fixed to the inner wall of the outer shell (1), and the front end of the reciprocating rotating motor (6) is in close contact with the limit seats (13).

8. The reciprocating rotary micro-arc welding gun according to claim 7, characterized in that: Two limiting end feet (61) corresponding to the limiting seat (13) are symmetrically fixed on the front end surface of the reciprocating rotating motor (6), and the ends of the limiting end feet (61) penetrate to one side of the limiting seat (13).

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