Air conditioning pipe joint welding tool

Abstract

The present invention relates to the field of welding technology, and specifically discloses an air-conditioning pipe joint welding tool, comprising: a base and a welding gun, the welding gun is arranged on the base and can move left and right relative to the base, two support rings are arranged on one side of the welding gun, and the two support rings are arranged coaxially, a positioning component is arranged inside the support ring, which is used to clamp and fix the air-conditioning pipe and the joint, and a driving mechanism for driving the support ring to rotate is arranged on one side of the support ring; the support ring is composed of an arc-shaped support and a cover plate, and one end of the cover plate is hinged to the end of the support; the air-conditioning pipe joint welding tool of the present invention clamps and supports the air-conditioning pipe and the joint through a support wheel, and clamps the air-conditioning pipe and the joint in cooperation with a pressure wheel and a telescopic cylinder, so that the air-conditioning pipe and the joint of different diameters are all in the middle part of the support ring, and then it can be ensured that the air-conditioning pipe and the joint are coaxially docked, and the misalignment of the air-conditioning pipe and the joint is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a welding tool for an air-conditioning pipe joint. Background Art

[0002] Air conditioning is an air conditioner that regulates and controls the temperature, humidity, cleanliness, speed and other parameters of the ambient air in a building. It generally includes cold source and heat source equipment, cold and hot medium distribution system, terminal device and other parts and other auxiliary equipment. It mainly includes water pumps, fans and piping systems. The terminal device is responsible for using the cold and hot water distributed to specifically process the air and temperature so that the air parameters of the target environment meet the requirements. Air conditioning pipe joints are important components that connect various pipes in the air conditioning system. They are often used to connect copper pipes, are resistant to high pressure, and have good sealing properties.

[0003] A patent document with the authorization announcement number CN219310550U discloses an air-conditioning pipe joint welding tool, including an equipment body, the equipment body including: an adjustment component, the adjustment component is arranged on an external fixed surface; a clamping component for clamping two groups of pipes, the clamping component is symmetrically arranged in two groups front and back, the clamping component is arranged on the adjustment component, the user first rotates the handle to drive the two groups of threaded rods to rotate respectively, during the rotation process, the driving sliding plate moves outward along the guide rail respectively, the distance between the two groups of matching parts becomes larger, the user inserts the two groups of catheters into the two groups of clamps Between the arcs, the handle is rotated in the opposite direction, so that the threaded rod drives the two sets of sliding plates to move in the opposite direction, and the two sets of sliding plates move toward each other, driving the matching parts to move toward each other, and finally the two sets of large and small catheters are clamped and fixed by the clamping wheel. At this time, the spring is in a compressed state. Due to the retractable characteristics of the spring, catheters of different diameters can be effectively fixed, avoiding the problem of different catheter diameters caused by processing and manufacturing tolerances and difficulty in clamping them separately. In addition, since the clamping wheel and the catheter are rollingly connected to each other, the user can rotate it independently during welding, which makes the welding effect better and effectively enhances the practicality of the device.

[0004] However, the solution still has the following problems: although the clamping wheel and the catheter are rollingly connected to each other and can be rotated by the user independently during welding, the catheter cannot be automatically flipped. The catheter is often brazed during welding, and the user needs to hold the welding gun in one hand and the brazing material in the other hand, which is inconvenient to manually flip the catheter. In addition, the user is also required to hold the catheter in one hand and operate the threaded rod with the other hand during catheter clamping. In particular, when the diameters of two catheters are the same and cannot be plugged in, it is difficult to hold the two catheters and then operate the threaded rod to make the two sets of clamps move synchronously to clamp the two catheters, which is not conducive to the rapid installation of the catheter. Summary of the invention

[0005] The invention provides an air conditioner pipe joint welding tool, aiming to solve the problem that the automatic flipping of the conduit cannot be realized in the related art, and it is inconvenient to manually flip the conduit when a user holds a welding gun in one hand and a solder in the other hand.

[0006] The air conditioning pipe joint welding tool of the present invention comprises a base and a welding gun, wherein the welding gun is arranged on the base and can move left and right relative to the base, two supporting rings are arranged on one side of the welding gun, and the two supporting rings are arranged coaxially, a positioning assembly is arranged inside the supporting ring, and is used to clamp and fix the air conditioning pipe and the joint, and a driving mechanism for driving the supporting ring to rotate is arranged on one side of the supporting ring;

[0007] The support ring is composed of an arc-shaped support and a cover plate, one end of the cover plate is hinged to the end of the support;

[0008] The positioning assembly includes a pressure wheel, a support wheel and a telescopic cylinder. The pressure wheel is arranged on the cover plate through the telescopic cylinder, and there are two support wheels which are arranged on the support through the telescopic cylinder.

[0009] The driving mechanism includes a driving gear and a driving ring. The driving gear is arranged on the base and can rotate relative to the base. The driving ring is composed of an arc plate spliced ​​on a support and a cover plate, and a plurality of tooth grooves are opened on the arc plate along its circumferential direction, and the driving gear is meshed with the tooth grooves.

[0010] The effect is that the air-conditioning pipe and the joint are clamped and supported by the support wheel, and the pressure wheel and the telescopic tube are used to clamp the air-conditioning pipe and the joint, so that the air-conditioning pipe and the joint of different diameters are all in the middle part of the support ring, ensuring that the air-conditioning pipe and the joint are coaxially docked, effectively avoiding the misalignment of the air-conditioning pipe and the joint, and the support ring rotates synchronously with the air-conditioning pipe and the joint, so that the welding gun can better perform uniform brazing around the interface of the air-conditioning pipe and the joint.

[0011] Preferably, two symmetrically distributed support plates are fixedly mounted on the base, and two support rings are respectively arranged on the two support plates. A base is arranged at the bottom of the welding gun, and the bottom of the base is slidably assembled on the base. A lead screw is rotatably connected to the base, and the lead screw is threadedly connected to the inside of the base. The effect is that the base is pushed to move by rotating the lead screw to facilitate the adjustment of the horizontal position of the welding gun.

[0012] Preferably, the driving mechanism also includes a first motor and a rotating shaft. The rotating shaft is laterally rotatably assembled between two support plates. The first motor is fixedly mounted on one of the support plates, and the output end of the first motor is fixed to the end of the rotating shaft. The driving gear is fixedly mounted on the rotating shaft. The effect is that the rotating shaft is driven to rotate by the first motor, which can drive the driving gear to rotate, thereby driving the support ring to rotate.

[0013] Preferably, a guide assembly is provided between the support ring and the support plate for supporting and guiding the support ring, the guide assembly includes a track and a guide ring, the track is arc-shaped and coaxially arranged with the support ring, and the track is fixedly connected to the top of the support plate, the guide ring is composed of arc-shaped slides fixed on the support and the cover plate, and the arc-shaped slide on the support is slidably connected inside the track, the effect of which is that the guide ring slides along the slide rail, and the support ring can be supported while the support ring can be rotated.

[0014] Preferably, two symmetrically distributed sliding grooves are provided at the bottom of the support, and a sliding seat is slidably mounted inside the two sliding grooves.

[0015] Preferably, the telescopic cylinder includes an outer cylinder, an inner cylinder and a spring. The inner cylinder is slidably assembled in the outer cylinder. The spring is arranged between the outer cylinder and the inner cylinder. The pressure wheel and the support wheel are fixed to the outer cylinder of the telescopic cylinder. The cover plate and the sliding seat are fixed to the inner cylinder of the telescopic cylinder. The effect is that the spring is compressed or released by the sliding of the outer cylinder outside the inner cylinder, thereby realizing the extension and retraction of the telescopic cylinder.

[0016] Preferably, an adjustment mechanism is provided on the support for adjusting the spacing between the two supporting wheels, the adjustment mechanism includes a second motor, an adjusting gear and an arc-shaped rack, the adjusting gear is rotatably assembled at the bottom of the support, the second motor is fixedly mounted on the support, the output end of the second motor is fixed to the adjusting gear, and there are two arc-shaped racks fixedly mounted on two slides respectively, the two arc-shaped racks are arranged opposite to each other and are meshed with the adjusting gear, the effect of which is that the second motor drives the adjusting gear to rotate, and the arc-shaped rack drives the two slides to slide in the opposite direction, so as to adjust the spacing between the two supporting wheels, so as to facilitate the support of the supporting wheels to air-conditioning pipes and joints of different diameters.

[0017] Preferably, a positioning plate is fixedly mounted on the end of the cover plate, a positioning groove is provided inside the positioning plate, a positioning shaft matching the positioning groove is rotatably connected to the outer side of the support, and both ends of the positioning shaft are located outside the positioning plate.

[0018] Beneficial effects:

[0019] When the present invention is in use, the air-conditioning pipe and the joint are clamped and supported by the support wheel, and the pressure wheel and the telescopic cylinder are used to clamp the air-conditioning pipe and the joint, so that the air-conditioning pipe and the joint of different diameters are all in the middle part of the support ring, thereby ensuring the coaxial docking of the air-conditioning pipe and the joint, effectively avoiding the misalignment of the air-conditioning pipe and the joint, and then improving the welding quality of the air-conditioning pipe and the joint. During welding, the air-conditioning pipe and the joint are rotated synchronously by the support ring, and the staff does not need to flip the air-conditioning pipe and the joint, so that the welding gun can better perform uniform brazing around the interface of the air-conditioning pipe and the joint. While improving the brazing quality of the interface position, it can also reduce the welding difficulty and improve the convenience of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a perspective view of the present invention.

[0021] Figure 2 It is a front view of the present invention.

[0022] Figure 3 It is a structural schematic diagram of the bottom of the support of the present invention.

[0023] Figure 4 It is a three-dimensional diagram of the support wheel of the present invention.

[0024] Figure 5 It is a cross-sectional view of a telescopic cylinder of the present invention.

[0025] Figure 6 It is a three-dimensional diagram of the support plate and the track of the present invention.

[0026] Figure 7 The present invention Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0027] Reference numerals:

[0028] 10. Base; 11. Welding gun; 12. Support plate; 13. Base; 14. Lead screw; 20. Support ring; 21. Support; 211. Positioning shaft; 212. Slide; 213. Slide; 22. Cover plate; 221. Positioning plate; 222. Positioning groove; 30. Guide assembly; 31. Track; 32. Guide ring; 40. Positioning assembly; 41. Pressure wheel; 42. Support wheel; 43. Telescopic cylinder; 431. Outer cylinder; 432. Inner cylinder; 433. Spring; 50. Driving mechanism; 51. First motor; 52. Rotating shaft; 53. Driving gear; 54. Driving ring; 55. Tooth groove; 60. Adjusting mechanism; 61. Second motor; 62. Adjusting gear; 63. Arc rack. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] like Figures 1 to 7As shown, the air-conditioning pipe joint welding tool of the present invention includes a base 10, a welding gun 11, a support ring 20, a guide assembly 30, a positioning assembly 40, a drive mechanism 50 and an adjustment mechanism 60. The welding gun 11 is arranged on the base 10 for welding the air-conditioning pipe and the joint. The support ring 20 has two coaxially arranged on one side of the welding gun 11 for supporting the air-conditioning pipe and the joint. The guide assembly 30 and the drive mechanism 50 are both arranged on the base 10. The guide assembly 30 can support and guide the support ring 20 so that the support ring 20 can rotate around its own central axis under the drive of the drive mechanism 50. The positioning assembly 40 and the adjustment mechanism 60 are both arranged on the support ring 20. The air-conditioning pipe and the joint in the support ring 20 can be fixed by the positioning assembly 40, and the adjustment mechanism 60 can adjust the supporting position of the positioning assembly 40 for the air-conditioning pipe and the joint.

[0031] refer to Figure 1 Two symmetrically distributed support plates 12 are fixedly mounted on the base 10, and two support rings 20 are respectively arranged on the two support plates 12. A base 13 is arranged at the bottom of the welding gun 11, and the bottom of the base 13 is slidably assembled on the base 10. A lead screw 14 is rotatably connected to the base 10, and the lead screw 14 is threadedly connected to the inside of the base 10. By rotating the lead screw 14 to push the base 13 to move, the welding position of the welding gun 11 can be adjusted.

[0032] refer to Figure 2 and Figure 7 The support ring 20 is composed of an arc-shaped support 21 and a cover plate 22, and one end of the cover plate 22 is hinged to the end of the support 21, and the other end of the cover plate 22 is fixedly installed with a positioning plate 221, and a positioning groove 222 is provided inside the positioning plate 221. The outer side of the support 21 is rotatably connected with a positioning shaft 211 adapted to the positioning groove 222, and the two ends of the positioning shaft 211 are located outside the positioning plate 221, and then the positioning shaft 211 blocks and limits the positioning plate 221. , so that the positioning plate 221 cannot be moved away from the support 21, and then the cover 22 on the support 21 cannot be opened. By rotating the positioning shaft 211 to make it completely move to just above the positioning groove 222, the obstruction of the positioning plate 221 can be released, and then the cover 22 can be opened to take and place the air-conditioning pipe and the joint. Two symmetrically distributed slide grooves 212 are provided at the bottom of the support 21, and the interior of the two slide grooves 212 is slidably equipped with a slide 213 to facilitate the installation of the positioning assembly 40.

[0033] refer to Figure 1 , Figure 2 and Figure 6The guide assembly 30 includes a track 31 and a guide ring 32. The track 31 is arc-shaped and coaxially arranged with the support ring 20, and the track 31 is fixedly connected to the top of the support plate 12. The guide ring 32 is composed of arc-shaped slides fixed on the support 21 and the cover plate 22, and the arc-shaped slide on the support 21 is slidably connected to the inside of the track 31. The guide ring 32 slides in the track 31, so that the support ring 20 can rotate around its own axis, and then drive the air-conditioning pipe and the joint to rotate during welding, thereby improving the welding effect.

[0034] refer to Figure 1 The positioning assembly 40 includes a pressure wheel 41, a supporting wheel 42 and a telescopic cylinder 43. The supporting wheel 42 has two symmetrically distributed below the pressure wheel 41. The pressure wheel 41 and the supporting wheel 42 are both provided with telescopic cylinders 43, and the telescopic cylinder 43 on the pressure wheel 41 is fixedly mounted on the cover plate 22, and the telescopic cylinder 43 on the supporting wheel 42 is fixedly mounted on the slide 213. The air-conditioning pipe or joint is supported from the bottom side by the two supporting wheels 42, and the cover plate 22 is covered on the support 21. During this process, the pressure wheel 41 squeezes the air-conditioning pipe or joint from the top, so that the telescopic cylinder 43 on the pressure wheel 41 and the supporting wheel 42 is compressed. After the support 21 and the cover plate 22 are spliced ​​and buckled, the telescopic cylinder 43 on the pressure wheel 41 and the supporting wheel 42 tends to be stable, and the air-conditioning pipe or joint is clamped to the middle part of the support ring 20, so that the air-conditioning pipe or joint remains coaxial with the support ring 20, so that the air-conditioning pipes and joints in the two support rings 20 can maintain coaxial docking, so as to improve the welding effect of the air-conditioning pipe and the joint.

[0035] refer to Figure 1 , Figure 4 and Figure 5 The telescopic cylinder 43 includes an outer cylinder 431, an inner cylinder 432 and a spring 433. The inner cylinder 432 is slidably assembled in the outer cylinder 431. The spring 433 is arranged between the outer cylinder 431 and the inner cylinder 432. The pressure wheel 41 and the support wheel 42 are fixed to the outer cylinder 431 of the telescopic cylinder 43. The cover plate 22 and the slide seat 213 are fixed to the inner cylinder 432 of the telescopic cylinder 43. The inner cylinder 432 slides in the outer cylinder 431 to compress or release the spring 433, thereby realizing the telescopic cylinder 43. So that the telescopic cylinder 43 can push the pressure wheel 41 and the support wheel 42 to clamp and fix the air-conditioning pipe and the joint.

[0036] refer to Figure 1 and Figure 2The driving mechanism 50 includes a first motor 51, a rotating shaft 52, a driving gear 53 and a driving ring 54. The rotating shaft 52 is assembled between the two support plates 12 for transverse rotation. The first motor 51 is fixedly mounted on one of the support plates 12, and the output end of the first motor 51 is fixed to the end of the rotating shaft 52. The driving gear 53 is fixedly mounted on the rotating shaft 52. The driving ring 54 is composed of an arc-shaped plate spliced ​​on the support 21 and the cover plate 22, and a plurality of tooth grooves 55 are provided on the arc-shaped plate along its circumferential direction. The driving gear 53 is meshed with the tooth grooves 55. The rotating shaft 52 is driven to rotate by the first motor 51, so that the driving gear 53 is pushed by the tooth grooves 55 to drive the driving ring 54 to rotate, and then the guide ring 32 slides in the track 31, so that the support ring 20 rotates with the air-conditioning pipe and the joint during welding.

[0037] refer to Figure 1 and Figure 3 The adjusting mechanism 60 includes a second motor 61, an adjusting gear 62 and an arc-shaped rack 63. The adjusting gear 62 is rotatably assembled at the bottom of the support 21. The second motor 61 is fixedly mounted on the support 21. The output end of the second motor 61 is fixed to the adjusting gear 62. Two arc-shaped racks 63 are respectively fixedly mounted on two slides 213. The two arc-shaped racks 63 are arranged opposite to each other and are meshed with the adjusting gear 62. The adjusting gear 62 is driven to rotate by the second motor 61, and the two arc-shaped racks 63 are pushed to move in the opposite direction, so that the two slides 213 slide in the opposite direction along their respective slide grooves 212, and the spacing between the two supporting wheels 42 is adjusted, so that the supporting wheels 42 can better support the air-conditioning pipes and joints of different diameters, and then cooperate with the pressing wheel 41 to complete the positioning of the air-conditioning pipes and joints of different diameters.

[0038] Working principle: rotate the positioning shaft 211 to align it with the positioning groove 222, flip the cover plate 22 to open it from the support 21, and then put the air conditioning pipe or joint between the two support wheels 42 in the support 21, press down to close the cover plate 22, and after the positioning shaft 211 penetrates the positioning groove 222, it blocks the positioning plate 221, and then fixes the cover plate 22 to the support 21. During the closing process of the cover plate 22, the pressing wheel 41 and the telescopic cylinder 43 on the support wheel 42 are pushed and compressed by the air conditioning pipe or joint, and finally the air conditioning pipe or joint is clamped and positioned to the support The center position of the support ring 20, after the two support rings 20 complete the clamping and docking of the air-conditioning pipe and the joint, rotate the screw 14 to push the base 13 to move, adjust the welding gun 11 to the interface position of the air-conditioning pipe and the joint for welding, and at the same time, the first motor 51 drives the rotating shaft 52 to rotate, so that the driving gear 53 drives the driving ring 54 to rotate through the tooth groove 55, and then the guide ring 32 slides in the track 31, so that the support ring 20 rotates with the air-conditioning pipe and the joint during welding, so that the welding gun 11 evenly welds the interface circumference of the air-conditioning pipe and the joint.

[0039] In the present invention, the air-conditioning pipe and the joint are clamped and supported by the support wheel 42, and the pressure wheel 41 and the telescopic cylinder 43 are used to clamp the air-conditioning pipe and the joint, so that the air-conditioning pipe and the joint of different diameters are all in the middle part of the support ring 20, thereby ensuring the coaxial docking of the air-conditioning pipe and the joint, effectively avoiding the misalignment of the air-conditioning pipe and the joint, and then improving the welding quality of the air-conditioning pipe and the joint. During welding, the support ring 20 rotates synchronously with the air-conditioning pipe and the joint, and the staff does not need to flip the air-conditioning pipe and the joint, so that the welding gun 11 can better perform uniform brazing around the interface of the air-conditioning pipe and the joint, which can improve the brazing quality of the interface position while reducing the difficulty of welding and improving the convenience of welding.

[0040] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An air conditioning pipe joint welding tool, comprising a base and a welding gun, wherein the welding gun is arranged on the base and can move left and right relative to the base, characterized in that: Two support rings are provided on one side of the welding gun, and the two support rings are coaxially arranged. A positioning assembly is provided inside the support ring for clamping and fixing the air conditioning pipe and the joint. A driving mechanism for driving the support ring to rotate is provided on one side of the support ring; The support ring is composed of an arc-shaped support and a cover plate, one end of the cover plate is hinged to the end of the support; The positioning assembly includes a pressure wheel, a support wheel and a telescopic cylinder. The pressure wheel is arranged on the cover plate through the telescopic cylinder, and there are two support wheels which are arranged on the support through the telescopic cylinder. The driving mechanism includes a driving gear and a driving ring. The driving gear is arranged on the base and can rotate relative to the base. The driving ring is composed of a support and an arc-shaped plate on the cover plate. The arc-shaped plate is provided with a plurality of tooth grooves along its circumferential direction. The driving gear meshes with the tooth grooves. The support ring is provided with a guide assembly for supporting and guiding the support ring. The guide assembly includes a track and a guide ring. The track is arc-shaped and coaxially arranged with the support ring. The guide ring is composed of arc-shaped slides fixed on the support and the cover plate, and the arc-shaped slide on the support is slidably connected inside the track. The bottom of the support is provided with two symmetrically distributed slide grooves, and the insides of the two slide grooves are slidably equipped with slide seats; The telescopic cylinder comprises an outer cylinder, an inner cylinder and a spring, the inner cylinder is slidably assembled in the outer cylinder, the spring is arranged between the outer cylinder and the inner cylinder, the pressure wheel and the support wheel are both fixed to the outer cylinder of the telescopic cylinder, and the cover plate and the slide seat are both fixed to the inner cylinder of the telescopic cylinder; The support is provided with an adjustment mechanism for adjusting the distance between the two supporting wheels. The adjustment mechanism includes a second motor, an adjustment gear and an arc-shaped rack. The adjustment gear is rotatably assembled at the bottom of the support. The second motor is fixedly mounted on the support. The output end of the second motor is fixed to the adjustment gear. There are two arc-shaped racks fixedly mounted on two slides respectively. The two arc-shaped racks are arranged opposite to each other and are both meshed with the adjustment gear.

2. The air conditioning pipe joint welding tool according to claim 1 is characterized in that: Two symmetrically distributed support plates are fixedly installed on the base, and two support rings are respectively arranged on the two support plates. A base is arranged at the bottom of the welding gun, and the bottom of the base is slidably assembled on the base. A lead screw is rotatably connected to the base, and the lead screw is threadedly connected to the inside of the base.

3. The air conditioning pipe joint welding tool according to claim 2, characterized in that: The driving mechanism also includes a first motor and a rotating shaft. The rotating shaft is assembled between two support plates for transverse rotation. The first motor is fixedly mounted on one of the support plates, and the output end of the first motor is fixed to the end of the rotating shaft. The driving gear is fixedly mounted on the rotating shaft.

4. The air conditioning pipe joint welding tool according to any one of claims 1 to 3, characterized in that: A positioning plate is fixedly installed at the end of the cover plate, a positioning groove is opened inside the positioning plate, a positioning shaft matched with the positioning groove is rotatably connected to the outer side of the support, and both ends of the positioning shaft are located outside the positioning plate.

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