Auxiliary welding device for air conditioner pipeline

Abstract

The invention discloses an auxiliary welding device for an air conditioner pipeline, and particularly relates to the technical field of electronic component machining, the auxiliary welding device comprises a workbench, a first stock bin and a second stock bin are installed on the workbench in parallel, a first material groove and a second material groove are formed in an outlet of the bottom of each stock bin, and the first material groove and the second material groove are rotationally assembled on the workbench through a first support; an electromagnetic induction heating coil is arranged between the first trough and the second trough, a first propelling unit and a second propelling unit are arranged at the positions, located at one end of the first trough and one end of the second trough, of the workbench respectively, and the output end of each propelling unit extends into one end of the first trough and one end of the second trough. The double bins are arranged, the pipe fittings at the two ends can automatically fall into the material groove at the bottom from the interiors of the bins, the material grooves rotate towards outlets in the bottoms of the bins, automatic material receiving can be achieved, the pushing unit arranged at one end of each material groove is matched, the pipe fittings can be pushed to move into the heating coil, and welding is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline welding, and more particularly to a welding auxiliary device for air-conditioning pipelines. Background Art

[0002] In air conditioning manufacturing, copper tube welding is a critical step in ensuring the tightness and reliability of refrigeration systems. Copper tube welding is primarily used in critical processes such as heat exchanger assembly, compressor piping connections, valve installation, distributor welding, process pipe sealing, and dissimilar metal connections. To ensure a tight weld, one end of the copper tube is typically precisely flared to allow the other pipe to fit securely into the flared end. High-temperature welding equipment is then used to fuse the welded parts together.

[0003] In small and medium-sized air conditioning parts processing plants, copper tube welding primarily utilizes a semi-automated production process. The specific process involves an operator first flaring the tube, then placing the tube to be welded into the welding equipment's work area, and finally starting the equipment to complete the welding operation.

[0004] In view of the existing technology, the present invention proposes a welding auxiliary device which has a simple structure, low cost and can significantly improve welding efficiency. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a welding auxiliary device for air-conditioning pipes, which can automatically drop pipe fittings through two silos, a trough for receiving materials is set at the bottom of the silo, and the pipe fittings are pushed by the propulsion units at both ends of the trough to achieve welding.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a welding auxiliary device for air conditioning pipes, comprising a workbench, on which a first silo and a second silo are mounted in parallel, the two ends of which are through-opening structures, and the pipe fittings can roll from the top of the silo to the bottom of the silo;

[0007] A trough 1 and a trough 2 are provided at the outlet of the bottom of the silo. The trough 1 and the trough 2 are assembled and rotated on a workbench through a bracket 1. When the trough rotates, the pipe fittings in the silo can fall into the trough. An electromagnetic induction heating coil is provided between the trough 1 and the trough 2.

[0008] Propulsion unit 1 and propulsion unit 2 are respectively arranged on the workbench at one end of material trough 1 and material trough 2. The output ends of the propulsion units extend into one end of material trough 1 and material trough 2, and can push the pipes in the material trough to move into the heating coil.

[0009] In a preferred embodiment, the material trough 1 and the material trough 2 are cylindrical structures, the middle part of the material trough 1 is cut into a half-circle structure along the axial direction, and one end of the material trough 2 is cut into a three-quarter semicircle structure along the axial direction. The material trough 1 and the material trough 2 rotate, and the cut open area can be connected to the bottom of the silo.

[0010] In a preferred embodiment, a processing frame 1 and a processing frame 2 are respectively provided on one side of the silo 1 and the silo 2, a driving seat is provided inside the processing frame through a slide groove, and a driven wheel and a driving wheel are provided on the side of the driving seat through a shaft, and the driven wheel and the driving wheel are connected and driven by a transmission member;

[0011] A propulsion unit three is provided on the side of the processing frame, and an output end of the propulsion unit three passes through the processing frame and is connected to the driving seat. The propulsion unit three drives the driving seat to slide in the processing frame.

[0012] In a preferred embodiment, a motor is provided inside the driving seat, and the driving wheel is driven by the motor to rotate, and a deburring piece and an expanding head are provided on the sides of the driven wheel and the driving wheel respectively;

[0013] The deburring member is a conical grinding wheel, which is arranged on the side edge of the driven wheel;

[0014] The size of one end of the expansion head gradually decreases to form a step structure;

[0015] The side of the silo is provided with an opening structure corresponding to the deburring part and the expansion head;

[0016] A retreat groove is provided on one side of the interior of the silo, close to the second processing frame, and the retreat groove means that the width of the silo is increased.

[0017] In a preferred embodiment, a pipe fastening mechanism is provided on the back of the silo, specifically, a through opening is opened on the back of the silo, and a clamping plate is provided at the through opening by rotating an axis, and two arc-shaped structures that can fit the pipe fittings are provided on the surface of the clamping plate, and a raised end with a triangular cross-section is provided in the middle of the two arc-shaped structures;

[0018] A horizontal frame is also provided on the back of the second silo. A driving unit is provided on the horizontal frame. The output end of the driving unit passes through the horizontal frame and contacts one end of the splint.

[0019] In a preferred embodiment, the silo is further provided with a closing head for closing the end of the pipe. The specific structure is that a closing head is provided on the driving seat in the processing frame, through a shaft. The closing head is driven to rotate by the motor inside the driving seat. A propulsion unit 3 is provided on the processing frame to drive the driving seat and the closing head to move.

[0020] The closing head is a cylindrical structure, and the internal hollow hole is conical.

[0021] In a preferred embodiment, the bracket 1 is sleeved on the outer wall of the trough 1 through a bearing, and one end of the trough 1 and the trough 2 is also sleeved with a gear ring;

[0022] A bracket 1 is provided at one end of the second trough, a limiting groove is provided at the other end of the second trough, and a bracket 2 is provided on the workbench. A support member is provided on the top of the second bracket, and rollers are provided at both ends of the support member. The rollers are located inside the limiting groove. The bracket 2 and the matching rollers are used to support one end of the second trough;

[0023] A transmission shaft is provided between bracket one of trough one and trough two, that is, the transmission shaft can rotate on bracket one, and gears meshing with the gear ring are provided at both ends of the transmission shaft, and a motor that can drive the transmission shaft to rotate is provided on bracket one.

[0024] In a preferred embodiment, the workbench is provided with a hopper 3 at one end of the trough 1, the hopper 3 is used to unload the welding rings one by one, and the heating coil is close to one end of the trough 2;

[0025] A material discharge channel is provided inside the silo three, the welding ring is located below the material discharge channel, and a circular hole is provided at one end of the silo three.

[0026] In a preferred embodiment, the hopper three is provided with a circular hole with an enlarged diameter on one side of the trough two, forming a first step and a second step. The first step is connected to the discharge channel, and the welding ring rolls directly to the first step after falling from the discharge channel. The diameter of the circular hole on the second step is larger than that of the circular hole on the first step, and the discharge channel and the first step are inclined toward the trough one.

[0027] In a preferred embodiment, the cross section of the welding ring is a shuttle-shaped structure.

[0028] The technical effects and advantages of the present invention are as follows:

[0029] 1. The present invention is equipped with double silos. The pipe fittings at both ends can automatically fall from the silo to the trough at the bottom. The trough rotates toward the bottom outlet of the silo to realize automatic material connection. With the propulsion unit set at one end of each trough, the pipe fittings can be pushed into the heating coil to realize welding.

[0030] 2. In order to improve the sealing performance of the two pipe fittings after welding, the present invention provides a closing head and an expanding head on the side of the silo respectively. The propulsion unit 3 can push the driving seat to move toward the end of the pipe fitting, and the expanding head can open the end of the pipe fitting. At the same time, the rotation of the expanding head drives the deburring part to rotate around the edge of the pipe fitting port through the transmission part, grinding off the burrs on the pipe fitting port, and further improving the sealing effect of the welding.

[0031] 3. Similarly, by setting a closing head on the silo, cooperating with the motor and the propulsion unit 3, the end of the pipe can be closed. When plugging in, the closed end and the flared end will fit tightly. Compared with the plug-in method after direct flaring in the existing technology, it can significantly improve the sealing after welding.

[0032] 4. The silo three provided in the present invention is used for dropping the welding ring, ensuring that before welding, the pipe is pushed by the pushing unit, the welding ring is sent to the flared end of the pipe, and then the pipe is moved to the heating coil area again to realize welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0034] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0035] Figure 3 It is a schematic diagram of the overall structure of the present invention.

[0036] Figure 4 This is a schematic diagram of the assembly of the trough and silo of the present invention.

[0037] Figure 5 This is a schematic diagram of the assembly of the trough and silo of the present invention.

[0038] Figure 6 It is a schematic diagram of the back of the silo of the present invention.

[0039] Figure 7 It is a side view of the splint of the present invention.

[0040] Figure 8 This is a schematic diagram of the assembly of the trough and silo of the present invention.

[0041] Figure 9 This is a schematic diagram of the interior of silo three of the present invention.

[0042] Figure 10 for Figure 3 Enlarged schematic diagram of point A in the middle.

[0043] Figure 11 This is a schematic diagram of the pipe fitting after connection.

[0044] Figure 12 This is the cross-sectional view after the pipe fitting is connected.

[0045] Figure 13 This is an overall schematic diagram of bracket two.

[0046] The accompanying drawings are marked as follows: 1. workbench; 2. silo 1; 201. silo 2; 202. splint; 203. cross frame; 204. drive unit; 205. retreat groove; 206. raised end; 3. propulsion unit 1; 301. trough 1; 302. trough 2; 303. propulsion unit 2; 304. bracket 1; 305. gear ring; 306. gear; 307. transmission shaft; 308. limit groove; 309. roller; 310. bracket 2; 311. Support member; 4. Hopper three; 401. First step; 402. Second step; 403. Material discharge channel; 5. Heating coil; 6. Material receiving hopper; 7. Pipe fitting; 8. Processing frame one; 801. Processing frame two; 802. Driving seat; 803. Receiving head; 804. Driven wheel; 805. Deburring member; 806. Transmission member; 807. Expanding head; 808. Propulsion unit three; 809. Driving wheel; 9. Welding ring. DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] As attached Figure 1 To the attached Figure 13 The welding auxiliary device for air-conditioning pipes shown in the figure includes a workbench 1, and a silo 1 2 and a silo 2 201 arranged parallel to the workbench 1. The two ends of the silo 1 2 and the silo 2 201 are through-opening structures, that is, the air-conditioning pipe fittings 7 can roll from the top of the silo to the bottom of the silo.

[0049] At the outlet of the bottom of the silo, cylindrical trough 1 301 and trough 2 302 are respectively provided. Trough 1 301 and trough 2 302 are rotatably assembled on the workbench 1 through bracket 1 304. In this embodiment, the bottom of bracket 1 304 is installed with the workbench 1, and the top of bracket 1 304 is a circular ring structure and is sleeved on the outer wall of trough 1 301 and trough 2 302, and is rotatably assembled through bearings.

[0050] The middle part of trough 1 301 is cut into a semicircular structure along the axial direction, and one end of trough 2 302 is cut into a three-quarter semicircular structure along the axial direction. When trough 1 301 and trough 2 302 rotate synchronously, the cut open areas thereof dock with the bottom of the silo, and the pipe fittings 7 of the two silos will roll into the trough synchronously. After trough 2 302 rotates, the welded pipe fittings 7 can be poured out.

[0051] An electromagnetic induction heating coil 5 is provided on the workbench 1 between the first trough 301 and the second trough 302 .

[0052] On the workbench 1, a propulsion unit 1 3 and a propulsion unit 2 303 are respectively provided at one end of the material trough 1 301 and the material trough 2 302. In the present invention, the propulsion units 1 and 2 are preferably electric push rods, whose output ends extend into one end of the material trough 1 301 and the material trough 2 302, and can push the two pipes 7 into the heating coil 5 to achieve welding.

[0053] In air-conditioning production, the copper tubes of components such as compressors, condensers, and evaporators are fixed by welding. The most common welding rods are silver or phosphor copper welding rods (required with flux). The solder is melted at high temperature to achieve sealing. Welding can ensure that the copper tube does not leak under high pressure (up to dozens of atmospheres), and the welded joint is more resistant to vibration and corrosion than mechanical connections. During the welding operation, one end of the copper tube is flared to expand it into a frustum structure, making it easier to insert the other copper tube into the flared end and brazing it with the welding rod.

[0054] The original intention of the present invention is to solve the problems of flaring, plugging and socketing of welding rods in the process of pipe welding, and improve the efficiency of welding. The present invention is particularly suitable for various small and medium-sized air-conditioning pipe fittings processing plants, and can realize automatic and batch welding in the welding of air-conditioning pipes of the same specifications.

[0055] refer to Figures 3 to 10 As shown, in order to realize the expansion of one end of the pipe fitting 7, a processing frame 1 8 and a processing frame 2 801 are respectively provided on one side of the silo 1 2 and the silo 2 201. The processing frame as a whole is a horizontal "U"-shaped structure. A driving seat 802 is provided inside the processing frame by means of a slide groove, and a driven wheel 804 and a driving wheel 809 are provided on the side of the driving seat 802 through an axis. The driven wheel 804 and the driving wheel 809 are connected by a transmission member 806. In the present invention, the driven wheel 804, the driving wheel 809 and the transmission member 806 can be assembled in a chain and gear manner.

[0056] A propulsion unit 3 808 is provided on the side of the processing frame 1 8. In the present invention, the propulsion unit 3 808 is driven by a hydraulic cylinder. The output end of the hydraulic cylinder passes through the processing frame and is connected to the drive seat 802. The drive seat 802 is driven by the hydraulic cylinder to slide in the processing frame.

[0057] A motor is arranged inside the driving seat 802, and the motor drives the driving wheel 809 to rotate. A deburring piece 805 and an expansion mouth 807 are respectively arranged on the sides of the driven wheel 804 and the driving wheel 809. The deburring piece 805 is a conical grinding wheel and is arranged on the side edge of the driven wheel 804. When the driven wheel 804 rotates, the deburring piece 805 can be close to the inner edge of the pipe 7.

[0058] One end of the expansion head 807 is in a stepped structure, and its cross section can be rectangular or circular, and its width and diameter gradually decrease to form a step. The expansion head 807 can adopt the expansion head of the air-conditioning pipe fitting in the prior art and is not an improved technical solution of the present invention.

[0059] An open structure corresponding to the deburring piece 805 and the expanding mouth 807 is opened on the side of the silo. When the pipe 7 rolls to the bottom, the propulsion unit three 808 pushes the driving seat 802, and the deburring piece 805 and the expanding mouth 807 are inserted into one end of the pipe 7. Under the continuous pressure of the propulsion unit three 808, the expanding mouth 807 rotates to complete the expanding of the pipe 7. At the same time, the driven wheel 804 rotates synchronously under the drive of the transmission piece 806, and the deburring piece 805 rotates around the inner edge of the pipe 7 to complete the deburring.

[0060] refer to Figure 8 As shown, a retreat groove 205 is provided inside the second silo 201 near the second processing frame 801 . The retreat groove 205 increases the width of the silo to prevent the expansion head 807 from being unable to expand the end of the pipe 7 .

[0061] refer to Figure 6 and Figure 7 In order to prevent the pipe fitting 7 from rotating with the expanding mouth 807 during expansion, a pipe fastening mechanism is provided on the back of the second silo 201. Specifically, a through opening is opened on the back of the second silo 201, and a splint 202 is provided at the through opening through an axis rotation. Two arc structures that can fit the pipe fitting 7 are provided on the surface of the splint 202, and a raised end 206 with a triangular cross-section is provided in the middle of the two arc structures.

[0062] A horizontal frame 203 is also provided on the back of the second silo 201 , and a driving unit 204 is provided on the horizontal frame 203 . In the present invention, the driving unit 204 can be a cylinder, a hydraulic cylinder or the like. The output end of the driving unit 204 passes through the horizontal frame 203 and contacts one end of the splint 202 .

[0063] The driving unit 204 pushes the splint 202 to move, which can clamp and fix two adjacent pipe fittings 7. The two pipe fittings 7 can be separated by a certain distance through the raised end 206 to meet the expansion of one of the pipe fittings 7 ports, and to prevent the pipe fitting 7 from rotating with the expansion head 807 when expanding. After the expansion is completed, the driving unit 204 contracts, the splint 202 automatically expands, the raised end 206 exits the interior of the silo 2 201201, and the pipe fitting 7 can fall freely.

[0064] In order to ensure that the flared end of the pipe fitting 7 can fit tightly with the other end of the pipe, a closing head 803 for closing the end of the pipe is also provided in the silo 2. Its specific structure is that a closing head 803 is provided on the driving seat 802 in the processing frame 8 through an axis. The closing head 803 is also driven to rotate by the motor inside the driving seat 802. A propulsion unit 3 808 is also provided on the processing frame 8 to drive the driving seat 802 and the closing head 803 to move.

[0065] The closing head 803 is a cylindrical structure, and the inner hollow hole is conical. When the closing head 803 is inserted into the end of the pipe 7 and rotated, the end of the pipe 7 can be retracted (refer to Figure 12 Schematic diagram of the pipe 7 after insertion).

[0066] After the pipe 7 completes expansion and closing, the first trough 301 and the second trough 302 rotate synchronously, and the pipe 7 falls into the trough synchronously.

[0067] In order to realize the synchronous rotation of the trough in the present invention, two brackets 304 are set at both ends of the trough 1 301, which are sleeved on the outer wall of the trough 1 301 through bearings. One end of the trough 1 301 and the trough 2 302 is also sleeved with a gear ring 305.

[0068] refer to Figure 13 , the same bracket 1 304 is set at one end of the material trough 2 302, a limiting groove 308 is opened at the other end of the material trough 2 302, and a bracket 2 310 is set on the workbench 1, a support member 311 is set on the top of the bracket 2 310, and rollers 309 are set at both ends of the support member 311, and the rollers 309 are located inside the limiting groove 308. The bracket 2 310 and the matching rollers 309 are used to support one end of the material trough 2 302 and complete the rotation of the material trough 2 302.

[0069] A transmission shaft 307 is provided between the bracket 1 304 of the material trough 1 301 and the material trough 2 302, that is, the transmission shaft 307 can rotate on the bracket 1 304, and gears 306 adapted to the gear ring 305 are also provided at both ends of the transmission shaft 307, that is, the gear 306 is engaged with the gear ring 305, and a motor that can drive the transmission shaft 307 to rotate is provided on the bracket 1 304. After the pipe fitting 7 is expanded, closed, and deburred, the transmission shaft 307 cooperates with the gear ring 305 to synchronously drive the material trough to rotate, and the pipe fitting 7 is completed to fall into the material trough.

[0070] The propulsion unit 1 3 and the propulsion unit 2 303 are installed on the workbench 1 through the mounting base, and the output ends thereof extend into the material trough to push the pipe 7 to move.

[0071] A hopper three 4 is provided on the workbench 1 at one end of the trough one 301 . The hopper three 4 is used to unload the welding rings 9 one by one. The heating coil 5 is close to one end of the trough two 302 .

[0072] A feeding channel 403 is provided inside the silo three 4, and the welding ring 9 falls from the feeding channel 403. A circular hole is provided at one end of the silo three 4, and the circular hole can allow the unexpanded pipe 7 to pass through. A circular hole with an enlarged diameter is provided on the side of the trough two 302 of the silo three 4 to form a first step 401 and a second step 402. The first step 401 is connected to the feeding channel 403. After the welding ring 9 falls from the feeding channel 403, it rolls directly to the first step 401. The diameter of the circular hole of the second step 402 is larger than that of the circular hole of the first step 401. In order to prevent the welding ring 9 from falling directly from the second step 402 after falling, the feeding channel 403 and the first step 401 are inclined toward the circular hole, that is, inclined toward the side of the trough one 301.

[0073] Under the push of the second propulsion unit 303 , the expanded pipe 7 cannot pass through the first step 401 .

[0074] During welding, the pushing unit 2 303 pushes the expanded pipe 7 into the second step 402, and the pushing unit 1 3 pushes the closed pipe 7. The closed end of the pipe 7 passes through the circular hole, and the welding ring 9 in the first step 401 is pushed into the expanded end of the pipe 7. The pushing unit 1 3 continues to push and the welding ring 9 is inserted into the outer surface of the closed end (such as Figure 11 and Figure 12 As shown), the pushing unit 2 303 contracts, and the pushing unit 1 3 pushes forward again, moving the plug-in area of ​​the pipe 7 into the heating coil 5, heating and melting the welding ring 9 to complete the welding.

[0075] After welding is completed, the pushing unit 1 3 pushes forward again to move the welded pipe fittings as a whole into the material trough 2 302 , and the material trough 2 302 rotates to complete the unloading, and the welded pipe fittings will fall into the receiving bin 6 on the workbench 1 .

[0076] After completing one set of welding, the propulsion unit is reset and the trough is rotated again to receive the next set of pipe fittings and weld them.

[0077] Compared with the prior art, the air conditioning pipe welding equipment of the present invention can complete the deburring, closing, flaring, plugging and brazing of pipes. After the closed pipe is plugged into the flared pipe, the welding and sealing effect is greatly improved.

[0078] The cross section of the welding ring 9 in the present invention is a shuttle-shaped structure. When the pipe 7 pushes the welding ring 9 into the flared end, the welding ring 9 can be inserted into the surface of the closed end by continuing to squeeze.

[0079] On the basis of the present invention, a hopper for unloading materials one by one can be set above the silos of pipe fittings and welding rings to further improve the efficiency of batch welding of the present invention. The hopper for unloading materials one by one is not an improved technical solution of the present invention.

[0080] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0081] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict.

[0082] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A welding auxiliary device for air conditioning pipes, comprising a workbench (1), characterized in that: The first silo (2) and the second silo (201) are installed in parallel on the workbench (1), and both ends of the first silo (2) and the second silo (201) are through-opening structures, and the pipe (7) can roll down from the top of the silo to the bottom of the silo; A trough 1 (301) and a trough 2 (302) are provided at the outlet of the bottom of the silo. The trough 1 (301) and the trough 2 (302) are assembled and rotated on the workbench (1) through a bracket 1 (304). When the troughs rotate, pipes in the silo can fall into the troughs. An electromagnetic induction heating coil (5) is provided between the troughs 1 (301) and the troughs 2 (302). A propulsion unit 1 (3) and a propulsion unit 2 (303) are respectively provided on the workbench (1) at one end of the material trough 1 (301) and the material trough 2 (302). The output ends of the propulsion units extend into one end of the material trough 1 (301) and the material trough 2 (302), and can push the pipe (7) in the material trough to move into the heating coil (5).

2. The welding auxiliary device for air conditioning pipes according to claim 1, characterized in that: The material trough 1 (301) and the material trough 2 (302) are cylindrical structures. The middle part of the material trough 1 (301) is cut into a half-semicircle structure along the axial direction, and one end of the material trough 2 (302) is cut into a three-quarters semicircle structure along the axial direction. The material trough 1 (301) and the material trough 2 (302) rotate, and the cut open area can be connected to the bottom of the silo.

3. The welding auxiliary device for air conditioning pipes according to claim 2, characterized in that: A processing frame 1 (8) and a processing frame 2 (801) are respectively provided on one side of the material bin 1 (2) and the material bin 2 (201), a driving seat (802) is provided inside the processing frame through a slide groove, and a driven wheel (804) and a driving wheel (809) are provided on the side of the driving seat (802) through an axis, and the driven wheel (804) and the driving wheel (809) are connected and driven by a transmission member (806); A propulsion unit 3 (808) is provided on the side of the processing frame. The output end of the propulsion unit 3 (808) passes through the processing frame and is connected to the driving seat (802). The propulsion unit 3 (808) drives the driving seat (802) to slide in the processing frame.

4. The welding auxiliary device for air conditioning pipes according to claim 3, characterized in that: A motor is provided inside the driving seat (802), and the motor drives the driving wheel (809) to rotate. A deburring piece (805) and a flaring head (807) are provided on the sides of the driven wheel (804) and the driving wheel (809), respectively. The deburring member (805) is a conical grinding wheel, which is arranged on the side edge of the driven wheel (804); The size of one end of the expansion head (807) gradually decreases to form a step structure; An opening structure corresponding to the deburring piece (805) and the expansion head (807) is provided on the side of the silo; A retreat groove (205) is provided inside the second silo (201) near one side of the second processing frame (801), and the retreat groove (205) is the width of the silo increased.

5. The welding auxiliary device for air conditioning pipes according to claim 4, characterized in that: A pipe fastening mechanism is provided on the back of the silo, specifically, a through opening is provided on the back of the silo, and a clamping plate (202) is provided at the through opening by rotating an axis, two arc-shaped structures that can fit the pipe (7) are provided on the surface of the clamping plate (202), and a raised end (206) with a triangular cross section is provided in the middle of the two arc-shaped structures; A horizontal frame (203) is further provided on the back of the second silo (201), and a driving unit (204) is provided on the horizontal frame (203). The output end of the driving unit (204) passes through the horizontal frame (203) and contacts one end of the clamping plate (202).

6. The welding auxiliary device for air conditioning pipes according to claim 5, characterized in that: The silo (2) is also provided with a closing head (803) for closing the end of the pipeline. The specific structure is that a closing head (803) is provided on the driving seat (802) in the processing frame (8) through an axis, and the closing head (803) is driven to rotate by the motor inside the driving seat (802). A propulsion unit (808) is provided on the processing frame (8) to drive the driving seat (802) and the closing head (803) to move; The closing head (803) is a cylindrical structure, and the inner hollow hole is conical.

7. The welding auxiliary device for air conditioning pipes according to any one of claims 1 to 6, characterized in that: The bracket 1 (304) is sleeved on the outer wall of the material trough 1 (301) through a bearing, and one end of the material trough 1 (301) and the material trough 2 (302) is also sleeved with a gear ring (305); A bracket (304) is provided at one end of the second material trough (302), a limiting groove (308) is provided at the other end of the second material trough (302), and a bracket (310) is provided on the workbench (1). A support member (311) is provided on the top of the second bracket (310), and rollers (309) are provided at both ends of the support member (311). The rollers (309) are located inside the limiting groove (308). The bracket (310) and the matching rollers (309) are used to support one end of the second material trough (302); A transmission shaft (307) is provided between the bracket one (304) of the material trough one (301) and the material trough two (302), that is, the transmission shaft (307) can rotate on the bracket one (304), and gears (306) meshing with the gear ring (305) are provided at both ends of the transmission shaft (307). A motor that can drive the transmission shaft (307) to rotate is provided on the bracket one (304).

8. The welding auxiliary device for air conditioning pipes according to claim 7, characterized in that: A hopper three (4) is provided on the workbench (1) at one end of the material trough one (301), and the material hopper three (4) is used to discharge the welding rings (9) one by one, and the heating coil (5) is close to one end of the material trough two (302); A material discharge channel (403) is provided inside the silo three (4), and the welding ring (9) is located below the material discharge channel (403). A circular hole is provided at one end of the silo three (4).

9. The welding auxiliary device for air conditioning pipes according to claim 8, characterized in that: The hopper three (4) is provided with a circular hole with an enlarged diameter on one side of the trough two (302), forming a first step (401) and a second step (402). The first step (401) is connected to the discharge channel (403). The welding ring (9) rolls directly to the first step (401) after falling from the discharge channel (403). The diameter of the circular hole of the second step (402) is larger than that of the circular hole of the first step (401). The discharge channel (403) and the first step (401) are inclined toward the trough one (301).

10. The welding auxiliary device for air conditioning pipes according to claim 9, characterized in that: The cross section of the welding ring (9) is a shuttle-shaped structure.

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