Locating and welding clamp for refrigeration pipe connector

Abstract

The utility model relates to the field of welding clamps, in particular to a refrigeration pipe connector positioning welding clamp which comprises a base, an annular guide rail is fixedly installed on the top face of the base, a sliding block is installed on the annular guide rail in a sliding mode, and a deflection clamping mechanism is installed on the side, away from the center of the annular guide rail, of the sliding block. The device has the advantages that the two sections of refrigeration pipes are placed on the inner side of the annular guide rail and clamped and fixed through the deflection clamping mechanism, then the deflection clamping mechanism is started to drive the refrigeration pipes to deflect, and connectors of the two sections of refrigeration pipes are parallel to the plane where the annular guide rail is located; the deflection clamping mechanism is controlled to be in butt joint with two sections of refrigeration pipe connectors, and finally the sliding block is controlled to slide along the annular guide rail, so that the effect of driving the seam of the two sections of bevel refrigeration pipes to rotate is achieved, and a worker can conveniently conduct uniform welding under the condition that a handheld welding gun keeps a fixed posture.

Description

Technical Field

[0001] This utility model relates to the field of welding fixtures, specifically to a welding fixture for positioning refrigeration pipe interfaces. Background Technology

[0002] Refrigeration pipe joint welding refers to the welding process that connects different pipe parts together in a refrigeration system. This process is crucial for ensuring the sealing, stability and overall efficiency of the refrigeration system.

[0003] In the welding process of refrigeration pipe joints, there are generally two main welding methods: moving the welding head and rotating the refrigeration pipe. Rotating the refrigeration pipe means that the welding head remains in a fixed position while the refrigeration pipe rotates during the welding process. This method ensures uniform welding and is suitable for welding large-diameter pipes.

[0004] The existing technology has the following shortcomings: The existing welding fixtures that use the rotating welding method of refrigeration pipes usually have a rotating clamping mechanism that drives the two refrigeration pipes to rotate synchronously and position them for docking. However, this method is only suitable for refrigeration pipes with flat ends. When the ends of the two refrigeration pipes are beveled and need to be positioned for welding, the traditional refrigeration pipe joint positioning welding fixture is difficult to make the two beveled refrigeration pipes rotate along the joint trajectory while keeping the welding gun fixed.

[0005] Therefore, traditional refrigeration pipe interface positioning and welding fixtures have the problem of being unable to rotate and weld angled refrigeration pipes, making it necessary to invent a refrigeration pipe interface positioning and welding fixture. Utility Model Content

[0006] To achieve the above objectives, this utility model provides the following technical solution: a refrigeration pipe interface positioning and welding fixture, including a base, an annular guide rail fixedly installed on the top surface of the base, a slider slidably installed on the annular guide rail, and a deflection clamping mechanism installed on the side of the slider away from the center of the annular guide rail. The deflection clamping mechanism is used to clamp two sections of refrigeration pipe and to drive the refrigeration pipe to deflect so that the interface of the two sections of refrigeration pipe is parallel to the plane of the annular guide rail.

[0007] Preferably, the deflection clamping mechanism includes an outer frame plate, which is fixedly installed on the side of the slider away from the center of the annular guide rail, and a deflection motor is fixedly installed on the side of the outer frame plate away from the slider.

[0008] Preferably, the output end of the deflection motor near the outer frame plate passes through the outer frame plate and is fixedly mounted with a hydraulic guide rod. The hydraulic guide rod is disposed between the outer frame plate and the slider, and the output end of the deflection motor is connected to the middle of the hydraulic guide rod.

[0009] Preferably, hydraulic slides are fixedly installed at both ends of the hydraulic guide rod, a first-stage hydraulic rod is fixedly installed on the side of the hydraulic slide near the center of the annular guide rail, and a first side plate is fixedly installed at the end of the first-stage hydraulic rod away from the hydraulic slide.

[0010] Preferably, the refrigeration pipe is located at the center of the inner side of the annular guide rail, the first side plate is located on the side of the refrigeration pipe closer to the slider, and the second side plate is provided on the side of the refrigeration pipe away from the slider.

[0011] Preferably, a U-shaped plate is fixedly installed between the upper end of the first side plate and the upper end of the second side plate, and a U-shaped plate is also fixedly installed between the lower end of the first side plate and the lower end of the second side plate. The U-shaped plate is arranged on both sides of the refrigeration pipe perpendicular to the first side plate.

[0012] Preferably, a secondary hydraulic rod is fixedly installed at each of the four corners of the first side plate near the refrigeration pipe, and a secondary hydraulic rod is also fixedly installed at each of the four corners of the second side plate near the refrigeration pipe. A clamping plate is fixedly installed at the end of the secondary hydraulic rod near the refrigeration pipe.

[0013] Preferably, a gear is rotatably mounted on the side of the slider near the center of the annular guide rail, and a gear motor is fixedly connected to one side of the gear's rotating shaft. The inner wall of the annular guide rail is provided with tooth grooves, and the gear meshes with the tooth grooves.

[0014] The beneficial effects of this utility model are as follows: two sections of refrigeration pipe are placed inside the annular guide rail and clamped and fixed by a deflection clamping mechanism. Then, the deflection clamping mechanism is activated to drive the refrigeration pipe to deflect, so that the interface of the two sections of refrigeration pipe is parallel to the plane of the annular guide rail. The deflection clamping mechanism is controlled to connect with the interface of the two sections of refrigeration pipe. Finally, the slider is controlled to slide along the annular guide rail to achieve the effect of driving the joint of the two oblique-cut refrigeration pipes to rotate, which makes it convenient for workers to weld evenly while holding the welding gun in a fixed posture. Attached Figure Description

[0015] Figure 1 The front view of the refrigeration pipe interface positioning and welding fixture provided by this utility model;

[0016] Figure 2 A schematic diagram of the deflection of the refrigeration pipe interface positioning and welding fixture provided by this utility model;

[0017] Figure 3 Another side view of the refrigeration pipe interface positioning and welding fixture provided by this utility model;

[0018] Figure 4 A schematic diagram of the internal structure of the outer frame plate of the refrigeration pipe interface positioning and welding fixture provided by this utility model;

[0019] Figure 5A schematic diagram of gear meshing in the refrigeration pipe interface positioning and welding fixture provided by this utility model.

[0020] In the figure: 11. Circular guide rail, 12. Gear groove, 13. Base, 14. Slider, 15. Gear motor, 16. Outer frame plate, 17. Deflection motor, 18. Hydraulic guide rod, 19. Hydraulic slide, 20. First-stage hydraulic rod, 21. First side plate, 22. Second side plate, 23. U-shaped plate, 24. Second-stage hydraulic rod, 25. Clamping plate, 26. Refrigeration pipe, 3. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] Example 1

[0023] like Figure 1 and Figure 2 As shown, the refrigeration pipe interface positioning and welding fixture in the first aspect embodiment of this utility model includes a base 13. An annular guide rail 11 is fixedly installed on the top surface of the base 13. A slider 14 is slidably installed on the annular guide rail 11. A deflection clamping mechanism is installed on the side of the slider 14 away from the center of the annular guide rail 11. The deflection clamping mechanism is used to clamp two sections of refrigeration pipe 3. The deflection clamping mechanism is used to drive the refrigeration pipe 3 to deflect so that the interface of the two sections of refrigeration pipe 3 is parallel to the plane of the annular guide rail 11.

[0024] In the above embodiment, it should be noted that the two sections of refrigeration pipe 3 are placed inside the annular guide rail 11 and clamped and fixed by the deflection clamping mechanism. Then, the deflection clamping mechanism is activated to drive the refrigeration pipe 3 to deflect, so that the interface of the two sections of refrigeration pipe 3 is parallel to the plane of the annular guide rail 11. The deflection clamping mechanism is controlled to connect with the interface of the two sections of refrigeration pipe 3. Finally, the slider 14 is controlled to slide along the annular guide rail 11 to achieve the effect of driving the joint of the two oblique-cut refrigeration pipe 3 to rotate, which makes it convenient for the staff to weld evenly while holding the welding gun in a fixed posture.

[0025] Example 2

[0026] like Figure 1 - Figure 4As shown, the refrigeration pipe interface positioning and welding fixture includes all the contents of Embodiment 1. Furthermore, the deflection clamping mechanism includes an outer frame plate 17, which is fixedly installed on the side of the slider 14 away from the center of the annular guide rail 11. A deflection motor 18 is fixedly installed on the side of the outer frame plate 17 away from the slider 14. The output end of the deflection motor 18 near the outer frame plate 17 passes through the outer frame plate 17 and is fixedly installed with a hydraulic guide rod 19. The hydraulic guide rod 19 is located between the outer frame plate 17 and the slider 14. The output end of the deflection motor 18 is connected to the middle of the hydraulic guide rod 19. Hydraulic slides 20 are fixedly installed at both ends of the hydraulic guide rod 19. A primary hydraulic rod 21 is fixedly installed on the side of the hydraulic slide 20 near the center of the annular guide rail 11. The end of the primary hydraulic rod 21 away from the hydraulic slide 20 is fixed... A first side plate 22 is installed, and the refrigeration pipe 3 is located in the center of the inner side of the annular guide rail 11. The first side plate 22 is located on the side of the refrigeration pipe 3 near the slider 14. A second side plate 23 is provided on the side of the refrigeration pipe 3 away from the slider 14. A U-shaped plate 24 is fixedly installed between the upper end of the first side plate 22 and the upper end of the second side plate 23. A U-shaped plate 24 is also fixedly installed between the lower end of the first side plate 22 and the lower end of the second side plate 23. The U-shaped plate 24 is located on both sides of the refrigeration pipe 3 perpendicular to the first side plate 22. A secondary hydraulic rod 25 is fixedly installed at the four corners of the side of the first side plate 22 near the refrigeration pipe 3. A secondary hydraulic rod 25 is also fixedly installed at the four corners of the side of the second side plate 23 near the refrigeration pipe 3. A clamping plate 26 is fixedly installed at the end of the secondary hydraulic rod 25 near the refrigeration pipe 3.

[0027] In the above embodiment, it should be noted that the clamping plate 26 is made of rubber sheet, which has a large surface friction force. The refrigeration pipe 3 is placed between the first side plate 22, the second side plate 23 and the U-shaped plate 24. The secondary hydraulic rod 25 is activated to push the clamping plate 26 to clamp the refrigeration pipe 3. Then, the primary hydraulic rod 21 is controlled to extend and retract to adjust so that the central axis of the two sections of refrigeration pipe 3 coincides with the center point of the annular guide rail 11. Then, the hydraulic slide 20 is activated to slide at both ends of the hydraulic guide rod 19 to fix the oblique ends of the two sections of refrigeration pipe 3. Then, the deflection motor 18 is activated to drive the hydraulic guide rod 19 to rotate, thereby deflecting the two sections of refrigeration pipe 3 to achieve the effect of making the interface of the refrigeration pipe 3 parallel to the plane of the annular guide rail 11.

[0028] Example 3

[0029] like Figure 2 and Figure 5As shown, the refrigeration pipe interface positioning welding fixture includes all the contents of Embodiment 1. In addition, a gear 15 is rotatably installed on the side of the slider 14 near the center of the annular guide rail 11. A gear motor 16 is fixedly connected to the shaft on one side of the gear 15. The inner wall of the annular guide rail 11 is provided with a toothed groove 12, and the gear 15 is meshed with the toothed groove 12.

[0030] In the above embodiments, it should be noted that when the interface of the refrigeration pipe 3 is parallel to the plane of the annular guide rail 11, the gear motor 16 is started to drive the gear 15 to rotate. The gear 15 meshes with the tooth groove 12 to achieve the effect of driving the slider 14 to slide along the annular guide rail 11.

[0031] The usage process of this utility model is as follows: Those skilled in the art place the refrigeration pipe 3 between the first side plate 22, the second side plate 23, and the U-shaped plate 24. The secondary hydraulic rod 25 is activated to push the clamping plate 26 to clamp the refrigeration pipe 3. Then, the primary hydraulic rod 21 is controlled to extend and retract to adjust the central axis of the two sections of refrigeration pipe 3 so that the center point of the annular guide rail 11 coincides with the center point of the annular guide rail 11. Next, the hydraulic slide 20 is activated to slide at both ends of the hydraulic guide rod 19 so that the oblique ends of the two sections of refrigeration pipe 3 are joined and fixed. Then, the deflection motor 18 is activated to drive the hydraulic guide rod 19 to rotate, causing the two sections of refrigeration pipe 3 to deflect so that the interface of the refrigeration pipe 3 is parallel to the plane of the annular guide rail 11. Finally, the gear motor 16 is activated to drive the gear 15 to rotate. The gear 15 meshes with the tooth groove 12, causing the slider 14 to slide along the annular guide rail 11, which has the effect of driving the joint of the two oblique-end refrigeration pipe 3 to rotate. At this time, the worker only needs to hold the welding gun in a fixed posture to evenly weld the two oblique-end refrigeration pipe 3.

[0032] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A refrigeration pipe interface positioning and welding fixture, comprising a base (13), wherein an annular guide rail (11) is fixedly mounted on the top surface of the base (13), characterized in that: A slider (14) is slidably mounted on the annular guide rail (11). A deflection clamping mechanism is installed on the side of the slider (14) away from the center of the annular guide rail (11). The deflection clamping mechanism is used to clamp two sections of refrigeration pipe (3). The deflection clamping mechanism is used to drive the refrigeration pipe (3) to deflect so that the interface of the two sections of refrigeration pipe (3) is parallel to the plane of the annular guide rail (11).

2. The refrigeration pipe interface positioning and welding fixture according to claim 1, characterized in that: The deflection clamping mechanism includes an outer frame plate (17), which is fixedly installed on the side of the slider (14) away from the center of the annular guide rail (11). A deflection motor (18) is fixedly installed on the side of the outer frame plate (17) away from the slider (14).

3. The refrigeration pipe interface positioning and welding fixture according to claim 2, characterized in that: The output end of the deflection motor (18) near the outer frame plate (17) passes through the outer frame plate (17) and is fixedly installed with a hydraulic guide rod (19). The hydraulic guide rod (19) is located between the outer frame plate (17) and the slider (14). The output end of the deflection motor (18) is connected to the middle of the hydraulic guide rod (19).

4. The refrigeration pipe interface positioning and welding fixture according to claim 3, characterized in that: Hydraulic slides (20) are fixedly installed at both ends of the hydraulic guide rod (19). A first-stage hydraulic rod (21) is fixedly installed on the side of the hydraulic slide (20) near the center of the annular guide rail (11). A first side plate (22) is fixedly installed at the end of the first-stage hydraulic rod (21) away from the hydraulic slide (20).

5. The refrigeration pipe interface positioning and welding fixture according to claim 4, characterized in that: The refrigeration pipe (3) is located in the center of the inner side of the annular guide rail (11), the first side plate (22) is located on the side of the refrigeration pipe (3) close to the slider (14), and the second side plate (23) is provided on the side of the refrigeration pipe (3) away from the slider (14).

6. The refrigeration pipe interface positioning and welding fixture according to claim 5, characterized in that: A U-shaped plate (24) is fixedly installed between the upper end of the first side plate (22) and the upper end of the second side plate (23). A U-shaped plate (24) is also fixedly installed between the lower end of the first side plate (22) and the lower end of the second side plate (23). The U-shaped plate (24) is arranged on both sides of the refrigeration pipe (3) perpendicular to the first side plate (22).

7. The refrigeration pipe interface positioning and welding fixture according to claim 6, characterized in that: The first side plate (22) has a secondary hydraulic rod (25) fixedly installed at the four corners of the side near the refrigeration pipe (3), and the second side plate (23) also has a secondary hydraulic rod (25) fixedly installed at the four corners of the side near the refrigeration pipe (3). The end of the secondary hydraulic rod (25) near the refrigeration pipe (3) is fixedly installed with a clamp (26).

8. The refrigeration pipe interface positioning and welding fixture according to claim 1, characterized in that: A gear (15) is rotatably mounted on the side of the slider (14) near the center of the annular guide rail (11). A gear motor (16) is fixedly connected to the shaft on one side of the gear (15). A toothed groove (12) is provided on the inner wall of the annular guide rail (11). The gear (15) meshes with the toothed groove (12).

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