CN112338325A

CN112338325A - Mechanical device for automatically adjusting welding voltage and current of machine

Info

Publication number: CN112338325A
Application number: CN202011387314.3A
Authority: CN
Inventors: 乐健; 高红涛; 刘一春; 徐繁; 刘强; 刘展鹏; 徐星; 张华�; 陈小奇
Original assignee: Nanchang University
Current assignee: Nanchang University
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-02-09

Abstract

The invention discloses a mechanical device for automatically adjusting welding voltage and current of a machine, which comprises a hollow shaft knob sleeve and a stepping motor, wherein the hollow shaft knob sleeve consists of a knob sleeve and a hollow rotating shaft, a supporting plate is arranged between the stepping motor and the hollow shaft knob sleeve, a through hole for a rotating shaft of the stepping motor to pass through is formed in the supporting plate, the knob sleeve is sleeved on a knob to be automatically adjusted, and the hollow rotating shaft at the upper end of the knob sleeve is connected with the rotating shaft of the stepping motor. The invention utilizes the characteristic of high rotating precision of the stepping motor, and the stepping motor is connected with the hollow rotating shaft, thereby realizing the precise adjustment of the welding voltage and current adjusting knob of the equipment, ensuring the automatic real-time adjustment of machines of the welding voltage and current in the whole welding process, adapting to different welding working conditions and improving the welding quality; the device has the advantages of simple integral structure, small volume, light weight, low manufacturing cost and convenient disassembly and assembly.

Description

Mechanical device for automatically adjusting welding voltage and current of machine

Technical Field

The invention relates to the technical field of welding robots, in particular to a mechanical device for automatically adjusting welding voltage and current of a machine.

Background

The wire feeder is an automatic driven mechanical wire feeder, which is mainly applied to automatic wire feeding of manual welding, automatic wire feeding of automatic argon arc welding, automatic wire feeding of plasma welding and automatic wire feeding of laser welding. The system is controlled by a microcomputer, is driven by a stepping speed reducing motor, and has high wire feeding precision and good repeatability. However, the welding voltage and current adjusting knobs of the welding system are required to be manually controlled, the stability of manual adjustment is poor, the accuracy of the adjusting process is difficult to guarantee, and the stability and the accuracy of the whole welding system are easily influenced. Meanwhile, in order to adapt to the automatic mechanical adjustment of the welding voltage and current in the welding process and improve the welding quality, a mechanical device for automatically adjusting the welding voltage and current by a machine is needed to be invented, so that the welding automation is realized, and the welding efficiency is improved.

Disclosure of Invention

The invention aims to solve the problems and provides a mechanical device for automatically adjusting welding voltage and current by a machine, so as to ensure the stability and accuracy of the welding current and voltage of a wire feeder in a wire feeding process, realize the automatic machine adjustment of the welding voltage and current in the welding process and improve the welding quality.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the utility model provides a mechanical device for machine automatically regulated welding voltage and electric current, includes hollow shaft knob cover and step motor, hollow shaft knob cover comprises knob cover and hollow shaft two parts, be equipped with the backup pad between step motor and the hollow shaft knob cover, it has the through-hole that can supply the step motor rotation axis to pass to open in the backup pad, knob cover is on the knob that needs automatically regulated, its upper end hollow shaft with the step motor rotation axis links to each other.

Step motor includes step motor organism and step motor rotation axis, step motor organism lower casing four corners is provided with the lower casing bolt hole, it has the round hole to open corresponding four lower casing bolt hole's position in the backup pad, the round hole aligns the back with the lower casing bolt hole, fixes the step motor organism in the backup pad through the screw.

The side surface of the bottom of the rotating shaft of the stepping motor is provided with a rotating shaft bolt hole, the hollow rotating shaft connected with the rotating shaft is provided with a positioning hole at a corresponding position, and after the positioning hole is aligned with the rotating shaft bolt hole, the rotating shaft of the stepping motor and the hollow rotating shaft are connected and fixed through a countersunk head screw.

The bottom of the knob sleeve is provided with a sleeve hole, and after the knob sleeve is sleeved with the knob, the inner wall of the sleeve hole is tightly attached to the knob.

The supporting frame is installed to backup pad four corners bottom, support frame one end is passed through the bolt and is fixed in the backup pad bottom, and the other end is fixed on sending a machine.

The mounting quantity of the supporting frames at the bottom of the supporting plate can be reduced from four to two, and the mounting positions are adjusted to be opposite angles of the supporting plate.

Two sets of automatic adjusting devices are arranged on the supporting plate and respectively correspond to a voltage adjusting knob and a current adjusting knob on the wire feeder.

The invention has the beneficial effects that:

1) the rotation of the hollow shaft knob sleeve is controlled by the stepping motor, so that the accurate adjustment of a welding voltage and current adjusting knob on the wire feeder is realized, the real-time and dynamic adjustment of the welding voltage and current in the welding process is further realized, the welding quality is effectively improved, and the welding machine can adapt to various knob control devices and complex working environments;

2) the mechanical device for automatically adjusting the welding voltage and current of the machine adopts the countersunk head screw to connect the stepping motor and the hollow shaft knob sleeve, so that the production cost of the device is effectively reduced while the adjustment precision is ensured;

3) the invention has simple structure, small volume, light weight and convenient disassembly and assembly.

4) The device is installed by utilizing the screw hole on the wire feeder, so that the wire feeder cannot be damaged by the installation of the device.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a mechanical device for automatically adjusting welding voltage and current of a machine according to the present invention;

FIG. 2 is an isometric view of a mechanism for automatically adjusting the welding voltage and current for a machine of the present invention;

FIG. 3 is a mechanical stepper motor shaft map for automatic machine welding voltage and current regulation of the present invention;

FIG. 4 is a front view of a stepper motor of a mechanical apparatus for automatic adjustment of welding voltage and current for a machine of the present invention;

FIG. 5 is an isometric view of a hollow shaft knob sleeve of a mechanical device for automatic adjustment of welding voltage and current by a machine of the present invention;

FIG. 6 is a bottom view of a hollow shaft knob sleeve of a mechanical device for automatic machine regulation of welding voltage and current in accordance with the present invention;

FIG. 7 is an exploded view of a mechanism for automatically adjusting welding voltage and current for a machine of the present invention;

FIG. 8 is a schematic view of a wire feeder according to the present invention;

FIG. 9 is a schematic view of the assembly of a mechanism for automatic machine regulation of welding voltage and current with a wire feeder of the present invention.

In the figure: 1. a hollow shaft knob sleeve; 2. a stepping motor; 21. a stepping motor body; 22. a stepping motor rotating shaft; 3. a hollow rotating shaft; 4. a knob sleeve; 5. a support plate; 6. a wire feeder; 7. a through hole; 8. a lower case bolt hole; 9. a circular hole; 10. a rotating shaft bolt hole; 11. positioning holes; 12. countersunk head screws; 13. trepanning; 14. a support frame; 15. a voltage adjustment knob; 16. and a current adjusting knob.

Detailed Description

In order to better explain the present invention, the detailed description of the present invention is made below with reference to the accompanying drawings and examples.

Example (b): see fig. 1-9.

As shown in fig. 1-2, a mechanical device for automatically adjusting welding voltage and current of a machine comprises a hollow shaft knob sleeve 1 and a stepping motor 2, wherein the hollow shaft knob sleeve 1 is composed of a knob sleeve 4 and a hollow rotating shaft 3, a supporting plate 5 is arranged between the stepping motor 2 and the hollow shaft knob sleeve 1, a through hole 7 through which a rotating shaft 22 of the stepping motor can pass is formed in the supporting plate 5, the knob sleeve 4 is sleeved on a knob which needs to be automatically adjusted, and the hollow rotating shaft 3 of the upper end of the knob is connected with the rotating shaft 22 of the stepping motor.

As shown in fig. 3, the stepping motor 2 includes a stepping motor body 21 and a stepping motor rotating shaft 22, the stepping motor body 21 is provided with lower housing bolt holes 8 at four corners of a lower housing, round holes 9 are opened at positions corresponding to the four lower housing bolt holes 8 on the support plate 5, and after the round holes 9 are aligned with the lower housing bolt holes 8, the stepping motor body 21 is fixed on the support plate 5 by screws.

As shown in fig. 4-5, a shaft bolt hole 10 is formed in a side surface of a bottom of the stepping motor rotating shaft 22, a positioning hole 11 is formed in a corresponding position of the hollow rotating shaft 3 connected to the stepping motor rotating shaft 22, and after the positioning hole 11 is aligned with the shaft bolt hole 10, the stepping motor rotating shaft 22 and the hollow rotating shaft 3 are connected and fixed by a countersunk head screw 12.

As shown in fig. 6, a sleeve hole 13 is formed at the bottom of the knob sleeve 4, and after the knob sleeve 4 is sleeved with the knob, the inner wall of the sleeve hole 13 is tightly attached to the knob.

As shown in fig. 2 and 7, support frames 14 are installed at the bottoms of four corners of the support plate 5, one end of each support frame 14 is fixed at the bottom of the support plate 5 through a bolt, and the other end of each support frame 14 is fixed on the wire feeder 6; the number of the supporting frames 14 at the bottom of the supporting plate 5 can be reduced from four to two, and the mounting position is adjusted to be the opposite angle of the supporting plate 5.

Two sets of automatic adjusting devices are installed on the supporting plate 5, and respectively correspond to the voltage adjusting knob 15 and the current adjusting knob 16 on the wire feeder 6 in fig. 8.

Fig. 9 is an assembly view of the device of the present invention using two support frames 14 to fix with a wire feeder 6, and the mechanical device for automatically adjusting welding voltage and current of a machine of the present invention utilizes the characteristic of high rotation precision of a stepping motor 2, and controls the rotation precision of a hollow shaft knob sleeve 1 by connecting the stepping motor 2 with a hollow rotating shaft 3, so as to realize the precise adjustment of a device welding voltage and current adjusting knob, ensure the stability of the welding voltage and current in the whole welding process, and improve the welding quality; the device has the advantages of simple integral structure, small volume, light weight and convenient disassembly and assembly, and can adapt to various different knob control devices and complex working environments.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent transformations made by the present specification and the attached drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a mechanical device for machine automatically regulated welding voltage and electric current, includes hollow shaft knob cover (1) and step motor (2), its characterized in that, hollow shaft knob cover (1) comprises hollow shaft (3) and knob cover (4) two parts, be equipped with backup pad (5) between step motor (2) and hollow shaft knob cover (1), it has through-hole (7) that can supply step motor rotation axis (22) to pass to open on backup pad (5), knob cover (4) cover is on the knob that needs automatically regulated, its upper end hollow shaft (3) with step motor rotation axis (22) link to each other.

2. The mechanical device for automatically adjusting the welding voltage and current of the machine according to claim 1, wherein the stepping motor (2) comprises a stepping motor body (21) and a stepping motor rotating shaft (22), four corners of a lower shell of the stepping motor body (21) are provided with lower shell bolt holes (8), a round hole (9) is formed in the support plate (5) corresponding to the four lower shell bolt holes (8), and after the round hole (9) is aligned with the lower shell bolt holes (8), the stepping motor body (21) is fixed on the support plate (5) through a screw.

3. The mechanical device for automatically adjusting the welding voltage and current of the machine according to claim 2, wherein a shaft bolt hole (10) is formed in the side surface of the bottom of the rotating shaft (22) of the stepping motor, a positioning hole (11) is formed in the corresponding position of the hollow rotating shaft (3) connected with the rotating shaft bolt hole, and after the positioning hole (11) is aligned with the shaft bolt hole (10), the rotating shaft (22) of the stepping motor is connected and fixed with the hollow rotating shaft (3) through a countersunk head screw (12).

4. The mechanical device for automatically adjusting the welding voltage and current of a machine according to claim 1 is characterized in that a sleeve hole (13) is formed at the bottom of the knob sleeve (4), and after the knob sleeve (4) is sleeved with the knob, the inner wall of the sleeve hole (13) is tightly attached to the knob.

5. The mechanical device for automatically adjusting the welding voltage and current of a machine according to claim 1, characterized in that the supporting plate (5) is provided with supporting frames (14) at the bottom of four corners, one end of each supporting frame (14) is fixed at the bottom of the supporting plate (5) through bolts, and the other end of each supporting frame (14) is fixed on the wire feeder (6).

6. The mechanical device for the automatic regulation of welding voltage and current of machine according to claim 5, characterized in that the number of the supports (14) at the bottom of the support plate (5) can be reduced from four to two, the mounting position being adjusted to the diagonal of the support plate (5).

7. The mechanical device for the automatic regulation of welding voltage and current of a machine according to claim 1, characterized in that said support plate (5) is equipped with two sets of automatic regulation devices, respectively corresponding to the voltage regulation knob (15) and the current regulation knob (16) of the wire feeder (6).