Welding device for new energy automobile air conditioner compressor casting element

Abstract

The invention discloses a welding device for a casting element of a new energy automobile air conditioner compressor, and relates to the technical field of welding equipment, and the welding device is characterized by comprising a base, an arc-shaped cover arranged on the base, two fluted discs which rotate in the arc-shaped cover in a limited manner and are provided with a gap therebetween, and a welding device arranged on the side of the arc-shaped cover and used for welding the casting element of the new energy automobile air conditioner compressor, the transmission box is arranged on the top side of the fluted disc and used for driving the fluted disc, and the equipment box is arranged on the top side of the fluted disc and connected with the arc-shaped cover through a supporting rod. When the welding device is used for welding a pipe fitting, a fluted disc drives a pipe fitting welding seam to rotate, continuous release of a welding rod is matched, so that the automatic and continuous welding effect on the pipe fitting is achieved, meanwhile, a multi-circle rotating welding mode is adopted, and the welding efficiency is improved while overall welding of the pipe fitting welding seam is achieved. And the welding firmness and stability are effectively improved, and the conditions of tedious procedures of manual welding, welding missing and tight welding connection are effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and more particularly, to a welding device for casting components of an air-conditioning compressor of a new energy vehicle. Background Art

[0002] New energy vehicles refer to vehicles that use non-traditional fuels as their power source, mainly including electric vehicles, plug-in hybrid vehicles, and hydrogen fuel cell vehicles. The air conditioners in new energy vehicles use the vehicle's electrical system to drive the compressor, providing cooling or heating functions while the vehicle is in motion or parked. The air-conditioning compressor contains both software and hardware parts. The core components of the hardware mainly include motors, cooling devices, connectors and pipes. Pipes are the core components that connect different components. Due to the different positions of the components in the air-conditioning compressor, in order to ensure that the pipes can be accurately connected according to the positions of other components, the bending part of the pipes will be involved. Direct shaping of the pipes will not only be affected by external forces, but also cause a certain degree of damage to the pipes themselves. For such cases, the pipes are mostly welded in a multi-tube combination. Since these pipe fittings are all metal pipe fittings, considering the convenience and cost of welding, brazing can be used as a better preferred method. This welding method can reduce the thermal impact on the parent material, reduce deformation and stress, and at the same time, the welding strength is high and has good sealing. This welding method requires the cooperation with the clamp. When welding, most of the welding is done manually through the cooperation of the welding gun and the welding rod. On the one hand, the operation is inconvenient. On the other hand, this method belongs to the gap welding form. When the clamp is rotated to adjust the position of the pipe fitting, it is easy to cause leakage or loose welding connection at the weld, affecting the quality of welding.

[0003] Therefore, in order to solve the above technical problems, the present application proposes a welding device for casting components of an air-conditioning compressor of a new energy vehicle. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a welding device for casting components of air-conditioning compressors of new energy vehicles.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding device for casting components of air-conditioning compressors of new energy vehicles, comprising a base, an arc-shaped cover arranged on the base, two gear discs that are limited and rotated inside the arc-shaped cover and have a gap between them, a transmission box arranged on the side of the arc-shaped cover and used to drive the gear discs, and an equipment box arranged on the top side of the gear disc and connected to the arc-shaped cover through a support rod; wherein, a cylinder a for adjusting the welding position and a cavity c for storing welding rods are respectively arranged on the top and both sides of the equipment box, a cavity a is arranged in the middle part of the equipment box, and the side of the cavity a is provided with a gas cylinder. A guide box for transmitting and guiding the welding rod is provided on the side, and cavity b is provided on both sides of the cavity a. The two cavities b are provided with transmission parts that engage with the two toothed discs and are used to discharge the welding rod in the cavity c and drive the roller parts provided in the guide box. The middle part of the equipment box is provided with a welding rod that passes through the top of the equipment box and is connected to the telescopic end of the cylinder a, and extends to the gap between the two toothed discs. A welding end is provided on the welding rod, and the side of the welding rod is connected to a guide tube corresponding to the position of the guide box through a support rod and used to guide the welding rod to the welding end.

[0006] Preferably, a circular slot hole with corresponding position and connecting structure is provided in the middle of the disc body of the two toothed discs, and a clamping assembly for clamping the welded elements is provided at the outer end face of the two toothed discs and located at the circular slot hole, and circular limiting grooves with corresponding position are provided on the inner and outer end faces of the toothed discs.

[0007] Preferably, the clamping assembly includes an annular seat that is an integral structure with the outer end face of the gear disc and a circular seat that is arranged on the annular seat and is in a communicating structure with the circular slot of the gear disc. The cylinder b and the splint connected to the telescopic end of the cylinder b are symmetrically arranged on the circular seat, and a limited rotation structure is formed between the annular seat and the arc cover.

[0008] Preferably, two driving teeth are provided inside the transmission box, which are connected by a shaft and penetrate the transmission port provided on the arc cover to engage with the tooth grooves on the two gear plates. A motor is provided outside the transmission box to drive the driving teeth.

[0009] Preferably, strip-shaped limit blocks engaged with circular limit grooves are provided on the inner walls on both sides of the cavity b, the transmission parts include gear a, gear b and gear c, and shafts are respectively provided in the cavity a to connect the gears a and gear c in the two cavities b. Two transmission wheels are provided on the side walls of the equipment box, which are synchronously driven by transmission belts and are respectively connected to the pillars and gear c provided inside the cavity c. A wire roller is nested on the pillar, and a welding rod is wound on the wire roller.

[0010] Preferably, the cavity a and cavity c are in a communicating structure, the welding rod on the wire roller is led out from the bottom of the wire roller, and the welding rod is introduced into the interior of the guide tube through the guide box until it contacts the welding end, the guide box is arranged on the inner wall of one side of the cavity a, and two guide rollers a are arranged inside the guide box for transmitting and guiding the welding rod, one of the two guide rollers a is connected to the gear b in the cavity b, and two gears d are arranged on the outside of the guide box, which are meshed with each other and connected to the two guide rollers a, and the top and bottom of the guide box are provided with guide openings with corresponding positions and sizes.

[0011] Preferably, the guide tube includes a vertical portion corresponding to the position of the guide port and a curved portion corresponding to the position of the welding end. The guide tube has multiple groups of spherical parts for smoothly guiding the welding rods arranged at intervals on the inner wall from the vertical portion to the curved portion. The spherical parts include at least four groups of balls embedded in the inner wall of the guide tube and used to guide the welding rods.

[0012] Preferably, a gap is provided between the guide tube and the guide box, a connecting plate is provided at the end of the vertical portion of the guide tube, and guide seats for limiting and guiding the welding rod are provided on both sides of the connecting plate, and the guide seats adopt a telescopic adjustment structure.

[0013] Preferably, the guide seat includes a guide roller b for limiting the welding rod and a telescopic adjustment member arranged at the bottom of the seat body, the telescopic adjustment member includes a telescopic rod and a limit seat connected to the connecting plate and engaged with the telescopic rod, and multiple groups of limit holes are longitudinally opened on the two side walls of the limit seat, and spring clips engaged with the limit holes are provided on both sides of the telescopic rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This welding device adopts the form of circular motion to continuously weld the welds between pipe fittings. At the same time, this welding device uses a welding rod with higher toughness to match the welding end. On the one hand, the welding rod can be continuously discharged through the guiding device, so that the welding end and the welding rod are always in contact. On the other hand, when the pipe fitting rotates, the weld can effectively adapt to the circular rotation welding method. Therefore, when welding the pipe fitting, this welding device drives the pipe fitting weld to rotate through the toothed disc, and cooperates with the continuous release of the welding rod to achieve automated and continuous welding effect of the pipe fitting.

[0015] 2. This welding device uses a welding rod with higher toughness and a multi-turn rotation welding mode. While achieving overall welding of the pipe weld, it also improves the firmness and stability of the welding, plays a welding reinforcement effect, and effectively avoids the tedious process of manual welding and the problems of leaking welds and tight welding connections. At the same time, this welding device is suitable for welding pipes of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 This is the overall structural diagram of the welding device in the present invention; Figure 2 It is a partial structural diagram of the welding device in the present invention; Figure 3 It is a structural diagram of the toothed disc in the present invention; Figure 4 The overall appearance of the equipment box of the present invention; Figure 5 For the present invention, the overall bottom view of the equipment box; Figure 6 This is a diagram showing the internal structure of the equipment box in the present invention; Figure 7 It is a structural diagram of the guide box in the present invention; Figure 8 This is the overall connection diagram of the welding rod in the present invention; Figure 9 For the present invention Figure 8 A magnified view of point A; Figure 10 This is a structural diagram of the guide tube in the present invention.

[0017] 1. Base; 101. Arc cover; 102. Transmission box; 103. Motor; 104. Driving gear; 2. Sprocket; 3. Equipment box; 301. Cylinder a; 302. Cavity b; 303. Cavity c; 304. Drive wheel; 305. Support; 4. Clamping assembly; 401. Round seat; 402. Cylinder b; 403. Clamping plate; 5. Welding rod; 501. Guide tube; 502. Ball; 503. Welding end; 6. Transmission parts; 601. Gear a; 602. Gear b; 603. Gear c; 7. Cavity a; 8. Guide box; 801. Guide roller a; 802. Gear d; 9. Line roller; 10. Guide seat; 1001. Guide roller b; 1002. Limit seat. DETAILED DESCRIPTION

[0018] like Figure 1-10As shown, the present invention provides a welding device for casting components of an air-conditioning compressor for a new energy vehicle, comprising a base 1, an arc-shaped cover 101 disposed on the base 1, two geared discs 2 that are limitedly rotated within the arc-shaped cover 101 with a gap therebetween, a transmission box 102 disposed beside the arc-shaped cover 101 and used to drive the geared discs 2, and an equipment box 3 disposed on the top side of the geared disc 2 and connected to the arc-shaped cover 101 via a support rod; like Figure 3-10 As shown, the top and both sides of the equipment box 3 are respectively provided with a cylinder a301 for adjusting the welding position and a cavity c303 for storing welding rods, a cavity a7 is provided in the middle part of the equipment box 3, and a guide box 8 for transmitting and guiding the welding rods is provided on the side of the cavity a7, cavities b302 are provided on both sides of the cavity a7, and the two cavities b302 are provided with a transmission member 6 that meshes with the two toothed discs 2 and is used to discharge the welding rods in the cavity c303 and drive the roller member provided in the guide box 8, the middle part of the equipment box 3 is provided with a welding rod 5 that passes through the top of the equipment box 3 and is connected to the telescopic end of the cylinder a301 and extends into the gap between the two toothed discs 2, the welding rod 5 is provided with a welding end 503, and the side of the welding rod 5 is connected to a guide tube 501 corresponding to the position of the guide box 8 through a support rod and is used to guide the welding rod to the welding end 503; Specifically, the equipment box 3 mainly adjusts the position of the fixed pipe fitting through the rotation of the toothed disc 2. On the other hand, the toothed disc 2 drives the discharge of the welding rod. The welding rod is guided to the welding end 503 through the guide tube 501. The welding end 503 corresponds to different welding positions of the pipe fitting, and cooperates with the welding rod in the continuous discharge state to act on the weld seam of the pipe fitting, thereby achieving welding of the pipe fitting. For welding needs, the circular seat 401 can adopt an independent laterally movable structure, which can be controlled by an additional cylinder to adjust the longitudinal and transverse positions of the pipe fittings, and cooperate with the angle adjustment of the toothed disc 2 to achieve welding of such pipe fittings. The circular seat 401 can also be replaced with a telescopic pipe fixture that can rotate with the toothed disc 2.

[0019] In summary, this welding device is mainly used for adaptive welding of various pipe components in air-conditioning compressors. While realizing automated welding, it further improves the welding effect. The specific description includes the following: When welding pipe fittings, the specific operations include: first, according to the diameter of the pipe fitting, the welding end 503 is adjusted to the appropriate position by the cylinder a301. This position is the weld position of the pipe fitting when the center point of the pipe fitting coincides with the center point of the toothed disc 2. This position ensures that when the pipe fitting rotates, it can rotate according to the center point of the toothed disc 2 to ensure the accuracy of the welding position. Then, the welding rod guiding operation is performed. After the welding rod guiding operation, the welding position of the pipe fitting is manually aligned and the cylinder b40 is used. 2. To clamp the pipe fittings, two sets of cylinders b402 can be used to move synchronously, and the clamped pipe fittings can be moved as a whole so that the welding position corresponds to the welding end 503. At this time, the center position of the pipe fitting is the center position of the toothed disc 2. Secondly, the cylinder b402 can be used to move the pipe fitting with the corresponding welding position to the center position of the toothed disc 2, and then the cylinder a301 can be used to adjust the welding end 503 to the welding position, and then the welding rod guiding operation can be carried out. The only difference in the two steps is the order of the welding rod guiding operation. The welding rod guidance requires manual assistance. The wire roller 9 with the welding rod is nested on the support 305 in the cavity c303, and the welding rod is passed from the top to the bottom of the guide box 8, through the guide seat 10 on the guide tube 501, and enters the guide tube 501. With the help of the spherical part in the guide tube 501, the welding rod is guided to the other end of the guide tube 501 until it contacts the welding end 503. The aforementioned welding rod guidance process needs to be achieved by cooperating with the motor 103 to drive the rotation of the gear disk 2. Based on the above, since the device is manually loaded with pipes, infrared calibration equipment can be used for auxiliary calibration during pipe welding calibration. After calibration, the pipes are clamped and fixed to ensure the accuracy of the corresponding positions. The device can also be loaded with external lifting equipment to ensure the stability of the pipes at both ends of the lifting equipment. After the pipes are embedded, the accuracy of the pipe docking can be guaranteed. The welding rods are made of tough metal materials, including various types of copper welding rods, such as brass welding rods, bronze welding rods, etc. The welding rods with higher toughness are the best, which are suitable for winding the roller body and guiding the welding rods. The firmness of the welding can be improved by multi-turn welding. During the continuous welding process, according to the melting rate of the welding rod and the residence time of the welding end 503 at the weld, the transmission rate of the toothed disc 2 can be controlled by controlling the motor 103. The welding rods that melt quickly adopt the form of fast multi-turn welding, and the welding rods that melt slowly adopt the form of slow single-turn welding.

[0020] In order to achieve through-type butt joint of pipe fittings, Figure 1 、 Figure 2 and Figure 3As shown, the middle of the disc body of the two toothed discs 2 is provided with a circular slotted hole with corresponding position and in a communicating structure. The outer end surfaces of the two toothed discs 2 are provided with a clamping assembly 4 for clamping the welded components at the circular slotted hole. The inner and outer end surfaces of the toothed discs 2 are provided with circular limiting grooves with corresponding positions. Specifically, a gap design is adopted between the two toothed discs 2. On the one hand, it is convenient for manual observation of the welding process and the transmission of the welding rod. On the other hand, it is convenient for manual inspection of the welding end 503 and adjustment of the guide seat 10. The clamping assembly 4 is based on the corresponding welding position of the pipe fitting, which plays the effect of limiting and fixing the pipe fitting, ensuring the stability and synchronization of the pipe body during the rotation process.

[0021] In order to realize the connection between the toothed disc 2 and the clamping assembly 4, as shown in FIG. Figure 1 As shown, the clamping assembly 4 includes an annular seat integrally formed with the outer end surface of the toothed disc 2 and a circular seat 401 disposed on the annular seat and communicating with the circular slot of the toothed disc 2. A cylinder b402 and a clamping plate 403 connected to the telescopic end of the cylinder b402 are symmetrically disposed on the circular seat 401. A limited rotation structure is formed between the annular seat and the arc-shaped cover 101. Furthermore, the annular seat is a rotating connecting part, which can drive the circular seat 401 to rotate. At the same time, the clamping effect is achieved by the symmetrical cylinder push mechanism on the circular seat 401 to achieve the clamping of the pipe fitting. Since the overall welding rotation angle of the pipe fitting is 360°, multi-turn welding can be performed under the premise that the wire body allows. The cylinder control form is more convenient. However, after welding, a reset operation is required. In addition to the cylinder control form, the cylinder control form can also be replaced by a manual clamping form. This method does not involve wire winding, does not require reset, and can continue to rotate multiple turns. However, the disassembly and assembly process of the pipe fitting is more cumbersome. Therefore, it is necessary to make an adaptive setting according to the specific situation of the pipe body. The toothed disc 2 is limited to rotate on the inner ring of the arc cover 101 through the annular seat, and the circular limiting groove on the outer end face of the toothed disc 2 is limitedly engaged with the limiting buckle on the inner wall of the arc cover 101, so that the toothed disc 2 can be rotated and limited on the arc cover 101; At the same time, the cylinder b402 is arranged at the outer side of the support rod between the arc cover 101 and the equipment box 3. When rotating, it does not touch the support rod, and the clamping plate 403 has an arc structure.

[0022] In order to achieve the transmission effect of the toothed disc 2, as Figure 2 and Figure 3As shown, the transmission box 102 is internally provided with two driving teeth 104 which are connected by a shaft and pass through a transmission port provided on the arc cover 101 to engage with the tooth grooves on the two gear discs 2. The transmission box 102 is externally provided with a motor 103 for driving the driving teeth 104. The gear disc 2 drives the driving teeth 104 located in the transmission box 102 and engaged with the tooth grooves of the gear disc 2 through the motor 103, thereby realizing synchronous transmission of the two sets of gear discs 2.

[0023] In order to realize the cavity b302, the inner walls on both sides are provided with strip-shaped limit blocks which fit into the circular limit grooves. Figure 6 As shown, the transmission member 6 includes a gear a601, a gear b602, and a gear c603. A shaft connecting the gears a601 and c603 in the two cavities b302 is provided in the cavity a7. Two transmission wheels 304 are provided on the side wall of the equipment box 3, which are synchronously driven by a transmission belt and are respectively connected to the pillars 305 provided in the cavity c303 and the gear c603. A wire roller 9 is embedded in the pillar 305, and a welding rod is wound on the wire roller 9. It is further explained that while the equipment box 3 is connected to the arc cover 101 through the support rod, the strip limit blocks on both sides of the cavity b302 are respectively engaged with the circular limit grooves on the inner and outer end faces of the gear disc 2. On the one hand, it limits the rotation of the gear disc 2, and on the other hand, it ensures the stability of the engagement between the transmission member 6 and the gear disc 2. For the cavities c303 on both sides of the equipment box 3, one serves as the installation cavity for the wire roller 9, and the other serves as the storage cavity for the wire roller 9. The wire roller 9 is nested on the pillar 305 in the installation cavity, and the rotation of the wire roller 9 is driven by the pillar 305 to realize the release of the welding rod. The transmission of the pillar 305 is realized by the gear c603 with the help of belt and wheel transmission. The release position of the wire roller 9 for the welding rod can be based on actual conditions, and can be released from the top or from the bottom.

[0024] To ensure linear guidance of the electrode when it is released, Figure 5 、 Figure 6 and Figure 7 As shown, the cavity a7 and the cavity c303 are connected. The welding rod on the wire roller 9 is led out from the bottom of the wire roller 9 and is introduced into the interior of the guide tube 501 through the guide box 8 until it contacts the welding end 503. The guide box 8 is arranged on the inner wall of one side of the cavity a7. Two guide rollers a801 for transmitting and guiding the welding rod are arranged inside the guide box 8. One of the two guide rollers a801 is connected to the gear b602 in the cavity b302. Two gears d802 are arranged on the outside of the guide box 8 and are meshed with each other and connected to the two guide rollers a801. The top and bottom of the guide box 8 are provided with guide openings of corresponding positions and sizes. Specifically, since the welding rod is made of a metal strip with high toughness, the guiding direction is from top to bottom, and there is a gap between the guide tube 501 and the guide box 8. Therefore, it is necessary to use the guide roller a801 that rotates relatively in the guide box 8 to cooperate with the guide seat 10 on the guide tube 501 to guide the welding rod rigidly, such as Figure 6 As shown, the guide roller a801 rotates inward. It can be seen that the rotation direction of the toothed disc 2 during welding is counterclockwise. At the same time, in order to match the release of the line roller 9, the line roller 9 is released from the bottom.

[0025] Based on the above, in order to allow the welding rod entering the guide tube 501 to slide smoothly, as shown in FIG. Figure 8 and Figure 10 As shown, the guide tube 501 includes a vertical portion corresponding to the position of the guide port and a curved portion corresponding to the position of the welding end 503. Multiple groups of spherical members for smoothly guiding the welding rod are arranged at intervals on the inner wall of the guide tube 501 from the vertical portion to the curved portion. The spherical members include at least four groups of balls 502 embedded in the inner wall of the guide tube 501 and used to guide the welding rod. Specifically, the guide tube 501 is a curved tube as a whole. Considering friction and guide angle issues, multiple groups of balls 502 are provided in the guide tube 501. The gaps formed between the multiple groups of balls 502 provide movement limits for the welding rod entering the guide tube 501, and achieve a smooth transition effect. Because the balls 502 need to provide a limit wrapping effect for the welding rod, at least four groups of balls 502 are provided, and more groups can be provided depending on the size of the balls 502. like Figure 6 and Figure 8 As shown, due to the gap between the guide tube 501 and the guide box 8, in order to achieve the best guiding effect for the welding rod, a connecting plate is provided at the end of the vertical portion of the guide tube 501. Guide seats 10 for limiting and guiding the welding rod are provided on both sides of the connecting plate. The guide seats 10 adopt a telescopic adjustment structure. Specifically, such as Figure 9 As shown, the guide seat 10 includes a guide roller b1001 for limiting the welding rod and a telescopic adjustment member arranged at the bottom of the seat body. The telescopic adjustment member includes a telescopic rod and a limit seat 1002 connected to the connecting plate and engaged with the telescopic rod. There are multiple groups of limit holes longitudinally opened on the two side walls of the limit seat 1002, and spring clips engaged with the limit holes are provided on both sides of the telescopic rod. For the guide seat 10 with a telescopic structure, when the welding rod 5 adjusts its position according to the pipe diameter, the gap between the guide pipe 501 and the guide box 8 is different. In order to ensure the stability of the welding rod guidance, the position of the guide seat 10 is targetedly adjusted according to the different gap positions. Specifically, elastic buckles and hole engagement are adopted, which are manual adjustment methods. It can also be automatically controlled by hydraulic rods or cylinders.

[0026] The above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any ordinary technician in this industry can smoothly implement the invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A welding device for casting components of air-conditioning compressors for new energy vehicles, characterized in that: It comprises a base (1), an arc-shaped cover (101) arranged on the base (1), two toothed discs (2) which are limitedly rotated inside the arc-shaped cover (101) and have a gap therebetween, a transmission box (102) arranged beside the arc-shaped cover (101) and used to drive the toothed discs (2), and an equipment box (3) arranged on the top side of the toothed disc (2) and connected to the arc-shaped cover (101) via a support rod; The top and both sides of the equipment box (3) are respectively provided with a cylinder a (301) for adjusting the welding position and a cavity c (303) for storing welding rods. The middle part of the equipment box (3) is provided with a cavity a (7), and the side of the cavity a (7) is provided with a guide box (8) for transmitting and guiding the welding rods. The two sides of the cavity a (7) are provided with cavities b (302). The two cavities b (302) are provided with gears that mesh with the two toothed discs (2) and are used to discharge the welding rods in the cavity c (303) and to guide the welding rods in the guide box (8). The transmission member (6) is driven by the roller member, and strip-shaped limit blocks are provided on the inner walls of both sides of the cavity b (302) and are engaged with the circular limit grooves. The middle part of the equipment box (3) is provided with a welding rod (5) that passes through the top of the equipment box (3) and is connected to the telescopic end of the cylinder a (301) and extends into the gap between the two toothed discs (2). The welding rod (5) is provided with a welding end (503). The side of the welding rod (5) is connected to a guide tube (501) corresponding to the position of the guide box (8) through a support rod and is used to guide the welding rod to the welding end (503).

2. The welding device for casting components of a new energy vehicle air-conditioning compressor according to claim 1 is characterized in that: A circular slotted hole with corresponding positions and a communicating structure is provided in the middle of the disc bodies of the two toothed discs (2); a clamping assembly (4) for clamping the welded components is provided on the outer end faces of the two toothed discs (2) and at the position of the circular slotted hole; and circular limiting grooves with corresponding positions are provided on the inner and outer end faces of the toothed discs (2).

3. The welding device for casting components of a new energy vehicle air-conditioning compressor according to claim 2 is characterized in that: The clamping assembly (4) comprises an annular seat integrally formed with the outer end surface of the toothed disc (2) and a circular seat (401) arranged on the annular seat and communicating with the circular slot of the toothed disc (2). The circular seat (401) is symmetrically provided with a cylinder b (402) and a clamping plate (403) connected to the telescopic end of the cylinder b (402). A limited rotation structure is formed between the annular seat and the arc cover (101).

4. The welding device for casting components of a new energy vehicle air-conditioning compressor according to claim 1, characterized in that: The transmission box (102) is internally provided with two driving teeth (104) connected by a shaft and penetrating a transmission port provided on the arc-shaped cover (101) to engage with tooth grooves on the two toothed discs (2). The transmission box (102) is externally provided with a motor (103) for driving the driving teeth (104).

5. The welding device for casting components of a new energy vehicle air-conditioning compressor according to claim 2, characterized in that: The transmission member (6) includes a gear a (601), a gear b (602) and a gear c (603). The cavity a (7) is provided with shafts for connecting the gears a (601) and the gear c (603) in the two cavities b (302). The side wall of the equipment box (3) is provided with two transmission wheels (304) that are synchronously driven by a transmission belt and are respectively connected to the pillars (305) provided inside the cavity c (303) and the gear c (603). A wire roller (9) is embedded on the pillar (305), and a welding rod is wound on the wire roller (9).

6. The welding device for casting components of a new energy vehicle air-conditioning compressor according to claim 5, characterized in that: The cavity a (7) and the cavity c (303) are in a communicating structure. The welding rod on the line roller (9) is led out from the bottom of the line roller (9), and is introduced into the interior of the guide tube (501) through the guide box (8) until it contacts the welding end (503). The guide box (8) is arranged on the inner wall of one side of the cavity a (7). Two guide rollers a (801) for transmitting and guiding the welding rod are arranged inside the guide box (8). One of the two guide rollers a (801) is connected to the gear b (602) in the cavity b (302). Two gears d (802) that are meshed with each other and connected to the two guide rollers a (801) are arranged on the outside of the guide box (8). The top and bottom of the guide box (8) are provided with guide openings of corresponding positions and sizes.

7. The welding device for casting components of a new energy vehicle air-conditioning compressor according to claim 6, characterized in that: The guide tube (501) includes a vertical portion corresponding to the position of the guide port and a curved portion corresponding to the position of the welding end (503). The guide tube (501) has multiple groups of spherical parts for smoothly guiding the welding rod arranged at intervals on the inner wall from the vertical portion to the curved portion. The spherical parts include at least four groups of balls (502) embedded in the inner wall of the guide tube (501) and used to guide the welding rod.

8. The welding device for casting components of a new energy vehicle air-conditioning compressor according to claim 7, characterized in that: A gap is provided between the guide tube (501) and the guide box (8), a connecting plate is provided at the end of the vertical portion of the guide tube (501), and guide seats (10) for limiting and guiding the welding rod are provided on both sides of the connecting plate, and the guide seats (10) adopt a telescopic adjustment structure.

9. The welding device for casting components of a new energy vehicle air-conditioning compressor according to claim 8, characterized in that: The guide seat (10) comprises a guide roller b (1001) for limiting the position of the welding rod and a telescopic adjustment member arranged at the bottom of the seat body, the telescopic adjustment member comprises a telescopic rod and a limiting seat (1002) connected to the connecting plate and engaged with the telescopic rod, multiple groups of limiting holes are longitudinally provided on the two side walls of the limiting seat (1002), and spring buckles engaged with the limiting holes are provided on both sides of the telescopic rod.

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