Motion control device for automatic welding gun

Abstract

The utility model relates to the technical field of automatic welding guns, and discloses an automatic welding gun motion control device which comprises a motor and is characterized in that an eccentric shaft is assembled at the driving end of the motor, a sliding block a and a sliding block b are sleeved outside the eccentric shaft, center grooves are formed in the side walls of the sliding block a and the sliding block b, the eccentric shaft is arranged in the center grooves, and the sliding block a and the sliding block b are arranged in the center grooves. The sliding blocks are respectively arranged in respective rails at 90 degrees, and the eccentric shaft 2 penetrates through grooves in the centers of the sliding blocks; when the eccentric shaft rotates, the sliding block is driven to do reciprocating rectilinear motion, then the reciprocating rectilinear motion is changed into reciprocating swing of the balance wheels through the pins, the two balance wheels drive the driving rods to do push-pull motion respectively, the welding gun is driven to move, and the welding action of the welding gun is completed. The shifting fork controls the position of a pin on the driving rod in the balance wheel groove to adjust the stroke of the driving rod, and the movement amplitude of the welding gun is adjusted.

Description

Technical Field

[0001] The utility model relates to a field, in particular to an automatic welding gun motion control device. Background Art

[0002] The existing similar technology uses electronic control to control the movement of the welding gun, and the welding gun can only swing left and right to complete welding. Various welding parameters need to be adjusted before welding, and data needs to be input. The operation is cumbersome and the function is single. The failure rate of electronic equipment is high in harsh environments such as high temperature, humidity, and dust.

[0003] Therefore, the prior art needs to be improved. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In order to solve the technical problems existing in the background technology, the utility model proposes an automatic welding gun motion control device, and the problem proposed by the utility model.

[0006] (II) Technical solution

[0007] In order to solve the above problems, the utility model provides an automatic welding gun motion control device, including a motor, characterized in that: the driving end of the motor is equipped with an eccentric shaft, the outside of the eccentric shaft is sleeved with a slider a and a slider b, the side walls of the slider a and the slider b are provided with a center groove, the eccentric shaft is arranged in the center groove, the end of the eccentric shaft is installed with a balance wheel a and a balance wheel b, the eccentric shaft is equipped with a driving rod, the front side wall of the slider a is equipped with a pin a, the rear side wall of the slider b is equipped with a pin b, the outside of the eccentric shaft is located at the rear side of the slider a and the slider b is equipped with a shift fork, and the front side wall of the motor is equipped with positioning blocks all around.

[0008] Preferably, a balance wheel hole a is provided at the upper end of the balance wheel a, a balance wheel groove a is provided at the lower end of the balance wheel a, a balance wheel groove b is provided at the lower end of the balance wheel b, and a balance wheel hole b is provided at the upper end of the balance wheel b.

[0009] The above technical solution of the utility model has the following beneficial technical effects: the automatic welding gun motion control device can drive the welding gun to move and complete the welding action of the welding gun. The shift fork controls the position of the pin on the driving rod in the balance wheel groove to adjust the stroke of the driving rod and adjust the movement amplitude of the welding gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The utility model is a structural schematic diagram of an automatic welding gun motion control device.

[0011] Figure numerals: 1. motor; 2. eccentric shaft; 3. positioning block; 4. slider a; 5. slider b; 6. center groove; 7. pin b; 8. pin a; 9. balance wheel a; 10. balance wheel hole a; 11. balance wheel b; 12. balance wheel hole b; 13. balance wheel groove a; 14. balance wheel groove b; 15. driving rod; 16. fork. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings; it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention; in addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0013] like Figure 1 As shown, the utility model proposes an automatic welding gun motion control device, including a motor 1, the driving end of the motor 1 is equipped with an eccentric shaft 2, the outside of the eccentric shaft 2 is sleeved with a slider a4 and a slider b5, the side walls of the slider a4 and the slider b5 are provided with a center groove 6, the eccentric shaft 2 is arranged in the center groove 6, the end of the eccentric shaft 2 is installed with a balance wheel a9 and a balance wheel b11, the eccentric shaft 2 is equipped with a driving rod 15, the front side wall of the slider a4 is equipped with a pin a8, the rear side wall of the slider b5 is equipped with a pin b7, the outside of the eccentric shaft 2 is located at the rear side of the slider a4 and the slider b5 is equipped with a fork 16, and the front side wall of the motor 2 is equipped with positioning blocks 3.

[0014] In an optional embodiment, a balance wheel hole a10 is formed at the upper end of the balance wheel a9, a balance wheel groove a13 is formed at the lower end of the balance wheel a9, a balance wheel groove b14 is formed at the lower end of the balance wheel b11, and a balance wheel hole b12 is formed at the upper end of the balance wheel b11.

[0015] It should be noted that the utility model is implemented by the following mechanism, and its working principle is as follows:

[0016] There are four Hall sensors evenly distributed at 90 degrees around the eccentric shaft 2, which are used to control the residence time of the welding gun in the middle and edge of the weld. The slider 4 and the slider 5 are installed in their respective slideways at 90 degrees. The eccentric shaft 2 passes through the groove 6 in the center of the two sliders. When the eccentric shaft rotates, it will drive the two sliders to slide back and forth in the 90 directions respectively. The pins (7 and 8) on the sliders are respectively placed in the holes (10 and 12) of the balance wheels (9 and 11). When the sliders make reciprocating linear motions, the balance wheels are driven to swing back and forth. There is a groove (13 and 14) from the center to the edge on the balance wheel. The pin on the welding gun driving rod 15 is placed in this groove. The adjusting fork 16 can adjust the position of the pin. When the pin is adjusted to the center position of the balance wheel, the driving rod is stationary. When the pin is adjusted to the edge of the balance wheel, the driving rod has the maximum stroke. The middle section of the groove is the continuously adjustable range of the driving rod stroke.

[0017] In summary, when the motor 1 drives the eccentric shaft 2 to rotate, the transmission through the sliders (4 and 5) and the balance wheels (9 and 11) will generate reciprocating push-pull forces with a phase of 90 degrees on the two drive rods 15, driving the welding gun to perform welding action. The adjustment fork 16 can respectively adjust the stroke of the two drive rods 15 to complete the control of different welding gun feeding modes.

[0018] It should be understood that the above-mentioned specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention; therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention; in addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. An automatic welding gun motion control device, comprising a motor (1), characterized in that: The driving end of the motor (1) is equipped with an eccentric shaft (2), and a slider a (4) and a slider b (5) are mounted on the outside of the eccentric shaft (2). The side walls of the slider a (4) and the slider b (5) are provided with a central groove (6), and the eccentric shaft (2) is arranged in the central groove (6). The ends of the eccentric shaft (2) are provided with a balance wheel a (9) and a balance wheel b (11). The eccentric shaft (2) is equipped with a driving rod (15), the front side wall of the slider a (4) is equipped with a pin a (8), and the rear side wall of the slider b (5) is equipped with a pin b (7). The outside of the eccentric shaft (2) located at the rear side of the slider a (4) and the slider b (5) is equipped with a shift fork (16), and positioning blocks (3) are installed around the front side wall of the motor (1).

2. The automatic welding gun motion control device according to claim 1, characterized in that: The upper end of the balance wheel a (9) is provided with a balance wheel hole a (10), the lower end of the balance wheel a (9) is provided with a balance wheel groove a (13), the lower end of the balance wheel b (11) is provided with a balance wheel groove b (14), and the upper end of the balance wheel b (11) is provided with a balance wheel hole b (12).

Images