Pipeline welding clamp for heating and ventilation engineering

Abstract

The utility model relates to the technical field of heating and ventilation pipelines, and discloses a pipeline welding clamp for heating and ventilation engineering, which comprises a welding clamp body, the bottom of the inner cavity of the welding clamp body is fixedly connected with a mounting plate, the top of the mounting plate is fixedly provided with a double-shaft motor, and the two ends of the output shaft of the double-shaft motor are fixedly connected with speed reducers. The bottom of the speed reducer is fixedly connected to the top of the mounting plate, an eccentric disc is fixedly connected to the output end of the speed reducer, a sliding groove is formed in the side, away from the speed reducer, of the eccentric disc, and arc-shaped toothed plates are movably connected to the two sides of the interior of the welding clamp body through pin rods. According to the welding device for the heating and ventilation pipeline, the double-shaft motor, the sliding sleeve rod, the arc-shaped toothed plate, the cylinder and other structures are arranged to be matched with one another, the heating and ventilation pipeline can be driven to rotate, manual adjustment by a user is not needed, welding treatment by the user is facilitated, the working efficiency is improved, and trouble and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of HVAC pipelines, in particular to a pipeline welding fixture for HVAC engineering. Background Art

[0002] HVAC pipes are widely used, such as purification system return air ducts, central air conditioning ventilation ducts, industrial supply and exhaust ventilation ducts, environmental protection system suction and exhaust ducts, mining gas extraction pipes, mining rubberized cloth air ducts, etc. In HVAC projects, in order to meet the length requirements of HVAC pipes, two sets of HVAC pipes are generally welded;

[0003] After searching, Chinese patent announcement number CN211889694U discloses a clamp for HVAC pipe welding, including a shell and a clamping mechanism, a slide plate is fixedly installed at the center axis of the top of the shell, a waste plate is slidably connected in the slide plate, a bracket is symmetrically installed on the top of the shell, the clamping mechanism is fixedly installed at the center axis of the bottom surface inside the shell, and a movable groove is symmetrically opened on the top of the shell, and the top of the clamping mechanism extends to the outside of the two movable grooves. The clamp for HVAC pipe welding provided by the utility model fixes two HVAC pipes to be welded together through the clamping mechanism, which is very convenient, saves a lot of manpower, and reduces safety hazards. It can be placed on the bracket before clamping the pipe, and clamped by the clamping mechanism after fixing the position, which improves work efficiency. During the welding process, solder often drips. After adding the waste plate, the solder will drip on the waste plate to avoid dripping directly on the device to cause damage.

[0004] In the above technology, the pipe welding clamp fixes two HVAC pipes to be welded together through a clamping mechanism, and the angle of the HVAC pipe cannot be adjusted, which makes it inconvenient to weld the HVAC pipes at different positions. The user needs to repeatedly clamp the HVAC pipes to adjust the angle, which is time-consuming and labor-intensive, and has low work efficiency. Therefore, a pipe welding clamp for HVAC engineering is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a pipe welding fixture for HVAC engineering, aiming to improve the problem that the HVAC pipe welding angle cannot be adjusted in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A pipe welding fixture for HVAC engineering, comprising a welding fixture body, a mounting plate fixedly connected to the bottom of the inner cavity of the welding fixture body, a double-axis motor fixedly installed on the top of the mounting plate, a reducer fixedly connected to both ends of the output shaft of the double-axis motor, the bottom of the reducer fixedly connected to the top of the mounting plate, an eccentric disk fixedly connected to the output end of the reducer, a slide groove is provided on the side of the eccentric disk away from the reducer, arc-shaped tooth plates are movably connected to the two sides of the welding fixture body through pin rods, the top of the arc-shaped tooth plates penetrates to the top of the welding fixture body, a sliding sleeve rod is slidably connected to the inside of the arc-shaped tooth plate, and the sliding sleeve rod is close to One side of the eccentric disk is slidably connected to the inside of the slide groove, and both sides of the inner cavity of the welding fixture body are fixedly connected with sliding rods, and the sliding sleeve rod is sleeved on the surface of the sliding rod. Both sides of the top of the welding fixture body are fixedly connected with support seats, and the inside of the support seat is movably connected with a cylinder through a bearing, and the surface of the cylinder is fixedly connected with a gear ring, and the top of the arc-shaped gear plate is meshed with the bottom of the gear ring. The front and back of the cylinder are fixedly connected with an electric cylinder, and the output end of the electric cylinder passes through the inside of the cylinder and is fixedly connected with an arc-shaped clamping plate, and support components are arranged on both sides of the top of the welding fixture body, and a collecting component is arranged at the bottom of the welding fixture body;

[0008] As a further description of the above technical solution:

[0009] The support assembly includes a support plate, which is arranged on the top of the welding fixture body, and the front and rear sides of both sides of the top of the welding fixture body are provided with T-shaped slide grooves, and the inside of the T-shaped slide groove is slidably connected with a T-shaped slider, and the top of the T-shaped slider is fixedly connected to the bottom of the support plate;

[0010] As a further description of the above technical solution:

[0011] Buffer pads are fixedly connected to both sides of the inner cavity of the T-shaped slide groove, and both sides of the T-shaped slide block are in contact with the surface of the buffer pads;

[0012] As a further description of the above technical solution:

[0013] The collecting assembly comprises an opening, the opening is opened on the top of the welding fixture body, and a collecting box is slidably connected inside the opening;

[0014] As a further description of the above technical solution:

[0015] A handle is fixedly connected to the front of the collection box;

[0016] As a further description of the above technical solution:

[0017] Both sides of the bottom of the inner cavity of the welding fixture body are fixedly connected with supporting square plates, and the supporting square plates are sleeved on the surface of the output shaft of the reducer;

[0018] As a further description of the above technical solution:

[0019] A reinforcing plate is fixedly connected to one side of the support seat close to the arc-shaped tooth plate, and the bottom of the reinforcing plate is fixedly connected to the top of the welding fixture body;

[0020] As a further description of the above technical solution:

[0021] A rubber pad is fixedly connected to one side of the arc-shaped clamping plate away from the electric cylinder.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, by setting up the mutual cooperation of the double-axis motor, the sliding sleeve rod, the arc-shaped tooth plate and the cylinder and other structures, the HVAC pipe can be driven to rotate, and the user does not need to perform manual adjustment, which is convenient for the user to perform welding processing, improves work efficiency, and saves trouble and labor.

[0024] 2. In the utility model, by setting the support plate, T-shaped slide groove and T-shaped slider structure to cooperate with each other, the T-shaped slide groove and T-shaped slider can drive the support plate to move left and right, which can facilitate the support plate to support HVAC pipes of different lengths, thereby improving the convenience of the welding fixture body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a pipe welding fixture for HVAC engineering proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the main cross-sectional structure of a welding fixture body of a pipe welding fixture for HVAC engineering proposed by the utility model;

[0027] Figure 3 This is a three-dimensional structural schematic diagram of an arc-shaped tooth plate of a pipe welding fixture for HVAC engineering proposed by the utility model;

[0028] Figure 4 The utility model is a three-dimensional structural schematic diagram of an arc-shaped clamping plate of a pipe welding fixture for HVAC engineering.

[0029] Legend:

[0030] 1. Welding fixture body; 2. Mounting plate; 3. Dual-axis motor; 4. Reducer; 5. Eccentric disk; 6. Slide groove; 7. Arc tooth plate; 8. Sliding rod; 9. Slide rod; 10. Support seat; 11. Cylinder; 12. Gear ring; 13. Electric cylinder; 14. Arc clamp; 15. Support plate; 16. T-shaped slide groove; 17. T-shaped slider; 18. Buffer pad; 19. Opening; 20. Collection box; 21. Handle; 22. Support square plate; 23. Reinforcement plate; 24. Rubber pad. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 2-4 The utility model provides an embodiment: a pipe welding fixture for HVAC engineering, including a welding fixture body 1, a mounting plate 2 is fixedly connected to the bottom of the inner cavity of the welding fixture body 1, a dual-axis motor 3 is fixedly installed on the top of the mounting plate 2, both ends of the output shaft of the dual-axis motor 3 are fixedly connected to a reducer 4, and both sides of the bottom of the inner cavity of the welding fixture body 1 are fixedly connected to support square plates 22, the support square plates 22 are sleeved on the surface of the output shaft of the reducer 4, and the output shaft of the reducer 4 can be supported by the support square plates 22, thereby improving the stability of the output shaft of the reducer 4 The bottom of the reducer 4 is fixedly connected to the top of the mounting plate 2, the output end of the reducer 4 is fixedly connected with an eccentric disk 5, a slide groove 6 is provided on the side of the eccentric disk 5 away from the reducer 4, both sides of the inside of the welding fixture body 1 are movably connected with arc-shaped toothed plates 7 through pins, and a reinforcing plate 23 is fixedly connected to the side of the support seat 10 close to the arc-shaped toothed plate 7, and the bottom of the reinforcing plate 23 is fixedly connected to the top of the welding fixture body 1, and the reinforcing plate 23 can increase the connection area between the arc-shaped toothed plate 7 and the welding fixture body 1, so as to prevent the arc-shaped toothed plate 7 from being broken or damaged;

[0033] Reference Figure 2-4The top of the arc-shaped toothed plate 7 penetrates to the top of the welding fixture body 1, and a sliding sleeve rod 8 is slidably connected inside the arc-shaped toothed plate 7. The side of the sliding sleeve rod 8 close to the eccentric disk 5 is slidably connected to the inside of the slide groove 6. Both sides of the inner cavity of the welding fixture body 1 are fixedly connected with sliding rods 9, and the sliding sleeve rod 8 is sleeved on the surface of the sliding rod 9. Both sides of the top of the welding fixture body 1 are fixedly connected with a support seat 10, and the inside of the support seat 10 is movably connected with a cylinder 11 through a bearing. The surface of the cylinder 11 is fixedly connected with a gear ring 12, and the top of the arc-shaped toothed plate 7 is meshed with the bottom of the gear ring 12. The front and back of the cylinder 11 are fixedly connected with an electric cylinder 13, and the output end of the electric cylinder 13 penetrates into the interior of the cylinder 11 and is fixedly connected with an arc-shaped splint 14. The side of the arc-shaped splint 14 away from the electric cylinder 13 is fixedly connected with a rubber pad 24, and the rubber pad 24 can protect the surface of the HVAC pipe to prevent the arc-shaped splint 14 from damaging the surface of the HVAC pipe.

[0034] Reference Figure 1-2 , support components are provided on both sides of the top of the welding fixture body 1, and the support components include a support plate 15, which is arranged on the top of the welding fixture body 1, and the front and rear sides of both sides of the top of the welding fixture body 1 are provided with T-shaped slots 16, and both sides of the inner cavity of the T-shaped slot 16 are fixedly connected with buffer pads 18, and both sides of the T-shaped slider 17 are in contact with the surface of the buffer pad 18, and the buffer pad 18 can prevent the T-shaped slider 17 from colliding and damaging with the welding fixture body 1, thereby improving the service life of the T-shaped slider 17, and the T-shaped slider 17 is slidably connected to the inside of the T-shaped slot 16, and the top of the T-shaped slider 17 is fixedly connected to the bottom of the support plate 15, and by setting the support plate 15, the T-shaped slot 16 and the T-shaped slider 17 The structure cooperates with each other, the T-shaped slot 16 and the T-shaped slider 17 can drive the support plate 15 to move left and right, which can facilitate the support plate 15 to support HVAC pipes of different lengths, thereby improving the convenience of the welding fixture body 1.

[0035] Reference Figure 1-2 The collecting component includes an opening 19, which is provided at the top of the welding fixture body 1. A collecting box 20 is slidably connected to the inside of the opening 19, and a handle 21 is fixedly connected to the front of the collecting box 20. The handle 21 can facilitate the user to quickly pull the collecting box 20. By setting the opening 19 and the collecting box 20, the welding slag generated during welding can be collected, avoiding the need for the user to manually clean the welding slag with tools.

[0036] Working principle: When in use, first put the HVAC pipe to be welded into the cylinder 11, start the electric cylinder 13, the electric cylinder 13 drives the arc clamping plate 14 to clamp the HVAC pipe, and then the user can weld the HVAC pipe through external welding equipment. When the angle of the HVAC pipe needs to be adjusted, start the dual-axis motor 3, the dual-axis motor 3 drives the eccentric disk 5 to rotate through the reducer 4, the eccentric disk 5 drives the sliding rod 8 to slide on the surface of the sliding rod 9 through the slide groove 6, the sliding rod 8 pushes the arc-shaped tooth plate 7 to rotate forward, the arc-shaped tooth plate 7 drives the gear ring 12 and the cylinder 11 to rotate, and the cylinder 11 drives the HVAC pipe to rotate, thereby achieving the advantage of convenient adjustment of the HVAC pipe welding angle.

[0037] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipe welding fixture for HVAC engineering, comprising a welding fixture body (1), characterized in that: The bottom of the inner cavity of the welding fixture body (1) is fixedly connected to a mounting plate (2), the top of the mounting plate (2) is fixedly installed with a dual-axis motor (3), both ends of the output shaft of the dual-axis motor (3) are fixedly connected to a reducer (4), the bottom of the reducer (4) is fixedly connected to the top of the mounting plate (2), the output end of the reducer (4) is fixedly connected to an eccentric disk (5), a side of the eccentric disk (5) away from the reducer (4) is provided with a slide groove (6), both sides of the inside of the welding fixture body (1) are movably connected with an arc-shaped tooth plate (7) through a pin rod, the top of the arc-shaped tooth plate (7) passes through the top of the welding fixture body (1), the inside of the arc-shaped tooth plate (7) is slidably connected with a sliding sleeve rod (8), and the side of the sliding sleeve rod (8) close to the eccentric disk (5) is slidably connected to the slide groove (6) ), both sides of the inner cavity of the welding fixture body (1) are fixedly connected with sliding rods (9), the sliding rod (8) is sleeved on the surface of the sliding rod (9), both sides of the top of the welding fixture body (1) are fixedly connected with a support seat (10), the interior of the support seat (10) is movably connected with a cylinder (11) through a bearing, the surface of the cylinder (11) is fixedly connected with a gear ring (12), the top of the arc-shaped toothed plate (7) is meshed with the bottom of the gear ring (12), the front and back of the cylinder (11) are fixedly connected with an electric cylinder (13), the output end of the electric cylinder (13) passes through the interior of the cylinder (11) and is fixedly connected with an arc-shaped clamping plate (14), support components are arranged on both sides of the top of the welding fixture body (1), and a collecting component is arranged at the bottom of the welding fixture body (1).

2. The pipe welding fixture for HVAC engineering according to claim 1 is characterized in that: The support assembly comprises a support plate (15), wherein the support plate (15) is arranged on the top of the welding fixture body (1), and the front and rear sides of the top of the welding fixture body (1) are both provided with T-shaped slide grooves (16), and the interior of the T-shaped slide groove (16) is slidably connected with a T-shaped slider (17), and the top of the T-shaped slider (17) is fixedly connected to the bottom of the support plate (15).

3. The pipe welding fixture for HVAC engineering according to claim 2 is characterized in that: Buffer pads (18) are fixedly connected to both sides of the inner cavity of the T-shaped slide groove (16), and both sides of the T-shaped sliding block (17) are in contact with the surface of the buffer pads (18).

4. The pipe welding fixture for HVAC engineering according to claim 1 is characterized in that: The collecting assembly comprises an opening (19), wherein the opening (19) is opened at the top of the welding fixture body (1), and a collecting box (20) is slidably connected inside the opening (19).

5. The pipe welding fixture for HVAC engineering according to claim 4 is characterized in that: A handle (21) is fixedly connected to the front of the collection box (20).

6. The pipe welding fixture for HVAC engineering according to claim 1 is characterized in that: Both sides of the bottom of the inner cavity of the welding fixture body (1) are fixedly connected with supporting square plates (22), and the supporting square plates (22) are sleeved on the surface of the output shaft of the reducer (4).

7. The pipe welding fixture for HVAC engineering according to claim 1 is characterized in that: A reinforcing plate (23) is fixedly connected to one side of the support seat (10) close to the arc-shaped tooth plate (7), and the bottom of the reinforcing plate (23) is fixedly connected to the top of the welding fixture body (1).

8. The pipe welding fixture for HVAC engineering according to claim 1 is characterized in that: A rubber pad (24) is fixedly connected to one side of the arc-shaped clamping plate (14) away from the electric cylinder (13).

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