Annular welding and cutting equipment

Abstract

The utility model provides annular welding and cutting equipment which comprises a left arc-shaped pipe and a right arc-shaped pipe, the left arc-shaped pipe is arranged on the left side of the right arc-shaped pipe, a plurality of cutting gun heads are connected to the inner side of the left arc-shaped pipe and the inner side of the right arc-shaped pipe, the left arc-shaped pipe is connected to a left connecting rod, and the right arc-shaped pipe is connected to a right connecting rod. The left connecting rod and the right connecting rod are fixedly inserted into the two sliding blocks correspondingly, the sliding blocks are slidably connected to the supporting frame, the two-way lead screw motor is sleeved with the rear portions of the sliding blocks, the supporting frame is inserted into the fixing base and moves up and down along the fixing base, and circular gears are rotationally connected to the left connecting rod and the right connecting rod correspondingly. The gear teeth are fixed to the left side of the left arc-shaped pipe and the right side of the right arc-shaped pipe respectively. The annular cutting device achieves the purpose of annular cutting of the pipe fittings, is high in cutting precision, can cut the pipe fittings of different specifications and different positions, and is high in automation degree.

Description

Technical Field

[0001] The utility model relates to the technical field of argon arc welding, in particular to a circular welding and cutting device. Background Art

[0002] Argon arc welding, also known as argon gas shielded welding, is a welding technology that uses argon as a shielding gas. Based on the principle of ordinary arc welding, it utilizes the protection of argon on the metal welding material. Through high current, the welding material melts into a liquid state on the base material to be welded to form a molten pool, enabling the base metal and the welding material to achieve metallurgical bonding. That is, argon shielding gas is passed around the arc welding to isolate the air outside the welding area and prevent oxidation of the welding area.

[0003] When cutting tubular equipment, it is mostly to hold a cutting gun and perform circumferential movement cutting on the pipe fitting, with low cutting efficiency and low cutting accuracy. Content of the Utility Model

[0004] The utility model aims to provide a circular welding and cutting device to overcome or at least partially solve the above problems.

[0005] To achieve the above object, the technical solution of the utility model is specifically realized as follows:

[0006] The utility model provides a circular welding and cutting device, including a left arc-shaped pipe and a right arc-shaped pipe. The left arc-shaped pipe is arranged on the left side of the right arc-shaped pipe, and a plurality of cutting gun heads are connected to the inner sides of both the left arc-shaped pipe and the right arc-shaped pipe. The left arc-shaped pipe is connected to a left connecting rod, and the right arc-shaped pipe is connected to a right connecting rod. The left connecting rod and the right connecting rod are respectively inserted and fixed on two sliders. The sliders are slidably connected to a support frame, and the rear parts of the sliders are sleeved on a bidirectional lead screw motor. The support frame is inserted into a fixed seat and moves up and down along the fixed seat. Circular gears are rotatably connected to both the left connecting rod and the right connecting rod, and the circular gears are meshed and connected with gear teeth. The gear teeth are respectively fixed on the left side of the left arc-shaped pipe and the right side of the right arc-shaped pipe.

[0007] As a further solution of the utility model, a lifting cylinder is arranged inside the fixed seat, and the output shaft of the lifting cylinder is fixedly connected to the bottom end of the support frame.

[0008] As a further solution of the utility model, a sliding groove is formed inside the support frame, and the slider is slidably connected to the sliding groove.

[0009] As a further solution of the utility model, two ear plates are fixedly connected to the back of the support frame, and the bidirectional lead screw motor is connected between the two ear plates.

[0010] As a further solution of the present utility model, arc-shaped guide grooves are provided on the front and rear sides of the left arc-shaped pipe and the right arc-shaped pipe, and guide wheels are also arranged on the arc-shaped guide grooves, and the guide wheels are rotatably connected to the left connecting rod and the right connecting rod.

[0011] As a further solution of the present utility model, notch grooves are also provided at the lower parts of the left connecting rod and the right connecting rod, and the circular gear, the guide wheel, the left arc-shaped pipe and the right arc-shaped pipe are all arranged in the notch grooves.

[0012] As a further solution of the present utility model, servo motors are fixedly connected to the backs of the left connecting rod and the right connecting rod, and the output shafts of the servo motors are connected to the circular gear.

[0013] The present utility model provides an annular welding and cutting device, and the beneficial effects are as follows: the purpose of annular cutting of pipe fittings is realized, the cutting accuracy is high, and pipe fittings of different specifications and at different positions can be cut, the operation is simple, and the degree of automation is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic structural diagram of the present utility model.

[0016] Figure 2 It is a schematic structural diagram of the left arc-shaped pipe in the present utility model.

[0017] Figure 3 It is a schematic structural diagram of the right arc-shaped pipe in the present utility model.

[0018] Figure 4 It is a schematic structural diagram of the circular gear in the present utility model.

[0019] Figure 5 It is a partial cross-sectional view of the left connecting rod in the present utility model.

[0020] Figure 6 It is a partial cross-sectional view of the support frame in the present utility model.

[0021] In the figure: 1, fixed seat; 2, lifting cylinder; 3, support frame; 4, right connecting rod; 5, left connecting rod; 6, slider; 7, left arc tube; 8, right arc tube; 9, air supply pipe; 10, cutting gun head; 11, arc guide groove; 12, gear teeth; 13, circular gear; 14, guide wheel; 15, notch groove; 16, bidirectional lead screw motor; 31, sliding groove; 131, servo motor. Detailed implementation mode

[0022] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0023] See Figures 1-6 , a ring welding and cutting device provided by an embodiment of the present utility model includes a left arc tube 7 and a right arc tube 8. The left arc tube 7 is arranged on the left side of the right arc tube 8, and a plurality of cutting gun heads 10 are connected to the inner sides of both the left arc tube 7 and the right arc tube 8. The left arc tube 7 is connected to the left connecting rod 5, and the right arc tube 8 is connected to the right connecting rod 4. The left connecting rod 5 and the right connecting rod 4 are respectively inserted and fixed on two sliders 6. The sliders 6 are slidably connected to the support frame 3, and the rear parts of the sliders 6 are sleeved on the bidirectional lead screw motor 16. The support frame 3 is inserted into the fixed seat 1, and the support frame 3 moves up and down along the fixed seat 1. Circular gears 13 are rotatably connected to both the left connecting rod 5 and the right connecting rod 4, and the circular gears 13 are meshed and connected with the gear teeth 12. The gear teeth 12 are respectively fixed to the left side of the left arc tube 7 and the right side of the right arc tube 8.

[0024] A lifting cylinder 2 is arranged inside the fixed seat 1, and the output shaft of the lifting cylinder 2 is fixedly connected to the bottom end of the support frame 3. The operation of the lifting cylinder 2 can drive the support frame 3 to move up and down, so as to adjust the heights of the left arc tube 7 and the right arc tube 8.

[0025] A sliding groove 31 is formed inside the support frame 3, and the slider 6 is slidably connected to the sliding groove 31, which is convenient for the slider 6 to move along the sliding groove 31.

[0026] Two ear plates are fixedly connected to the back of the support frame 3, and the bidirectional lead screw motor 16 is connected between the two ear plates, which is convenient for supporting the bidirectional lead screw motor 16.

[0027] During the use of the utility model, first observe the size and position of the pipe fitting to be cut, then operate the bidirectional lead screw motor 16, and drive the left connecting rod 5 and the right connecting rod 4 to move away from each other under the action of the ball nut side effect, so as to separate the left arc-shaped pipe 7 from the right arc-shaped pipe 8. Subsequently, the lifting cylinder 2 operates to drive the support frame 3 to move downward, which can drive the left arc-shaped pipe 7 and the right arc-shaped pipe 8 to move downward and place them on both sides of the pipe fitting. Then, reverse the operation of the bidirectional lead screw motor 16 to reset the left arc-shaped pipe 7 and the right arc-shaped pipe 8, and the ring formed by the left arc-shaped pipe 7 and the right arc-shaped pipe 8 can be placed around the pipe fitting. Then, connect the left arc-shaped pipe 7 and the right arc-shaped pipe 8 to an external argon gas source through the gas supply pipe 9, and connect the cutting gun head 10 to an external control terminal. Operate the cutting gun head 10 through the external control terminal to cut the pipe fitting. At the same time, drive the circular gear 13 to rotate through the operation of the servo motor 131. Then, under the action of the teeth 12, drive the left arc-shaped pipe 7 and the right arc-shaped pipe 8 to perform a circular reciprocating motion around the central axis of the pipe fitting, and the movement angle is controlled between -45° and 45°, so as to accurately cut the pipe fitting with high cutting efficiency.

[0028] As Figures 1-5 shown, arc-shaped guide grooves are provided on the front and rear sides of the left arc-shaped pipe 7 and the right arc-shaped pipe 8. Guide wheels 14 are also provided on the arc-shaped guide grooves. The guide wheels 14 are rotatably connected to the left connecting rod 5 and the right connecting rod 4. Notch grooves 15 are also provided at the lower parts of the left connecting rod 5 and the right connecting rod 4. The circular gear 13, the guide wheels 14, the left arc-shaped pipe 7 and the right arc-shaped pipe 8 are all arranged in the notch grooves 15. Servo motors 131 are fixedly connected to the backs of the left connecting rod 5 and the right connecting rod 4. The output shafts of the servo motors 131 are connected to the circular gear 13. The servo motors 131 operate to drive the circular gear 13 to rotate. Then, under the action of the teeth 12, drive the left arc-shaped pipe 7 and the right arc-shaped pipe 8 to rotate. At the same time, the guide wheels 14 guide the rotation of the left arc-shaped pipe 7 and the right arc-shaped pipe 8.

[0029] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A circular welding and cutting device, comprising a left arc-shaped pipe (7) and a right arc-shaped pipe (8), characterized in that, The left arc-shaped pipe (7) is arranged on the left side of the right arc-shaped pipe (8), and a plurality of cutting gun heads (10) are connected to the inner sides of both the left arc-shaped pipe (7) and the right arc-shaped pipe (8). The left arc-shaped pipe (7) is connected to the left connecting rod (5), and the right arc-shaped pipe (8) is connected to the right connecting rod (4). The left connecting rod (5) and the right connecting rod (4) are respectively inserted and fixed on two sliders (6). The sliders (6) are slidably connected to the support frame (3), and the rear part of the slider (6) is sleeved on the bidirectional lead screw motor (16). The support frame (3) is inserted into the fixed seat (1), and the support frame (3) moves up and down along the fixed seat (1). Circular gears (13) are rotatably connected to both the left connecting rod (5) and the right connecting rod (4). The circular gears (13) are meshed with the gear teeth (12). The gear teeth (12) are respectively fixed to the left side of the left arc-shaped pipe (7) and the right side of the right arc-shaped pipe (8).

2. The annular welding and cutting device according to claim 1, characterized in that, A lifting cylinder (2) is arranged inside the fixed seat (1), and the output shaft of the lifting cylinder (2) is fixedly connected to the bottom end of the support frame (3).

3. A circular welding and cutting device according to claim 1, characterized in that, A sliding groove (31) is formed inside the support frame (3), and the slider (6) is slidably connected to the sliding groove (31).

4. A circular welding and cutting device according to claim 1, characterized in that, Two ear plates are fixedly connected to the back surface of the support frame (3), and the bidirectional lead screw motor (16) is connected between the two ear plates.

5. A circular welding and cutting device according to claim 1, characterized in that, Arc-shaped guide grooves are formed on the front and rear sides of both the left arc-shaped pipe (7) and the right arc-shaped pipe (8), and guide wheels (14) are arranged on the arc-shaped guide grooves. The guide wheels (14) are rotatably connected to the left connecting rod (5) and the right connecting rod (4).

6. The annular welding and cutting device according to claim 5, wherein Notch grooves (15) are formed in the lower parts of both the left connecting rod (5) and the right connecting rod (4). The circular gears (13), the guide wheels (14), the left arc-shaped pipe (7), and the right arc-shaped pipe (8) are all arranged inside the notch grooves (15).

7. An annular welding and cutting device according to claim 6, characterized in that Servo motors (131) are fixedly connected to the back surfaces of both the left connecting rod (5) and the right connecting rod (4). The output shafts of the servo motors (131) are connected to the circular gears (13).

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