A compressor housing projection welding apparatus

Abstract

This utility model relates to the field of projection welding technology for compressor housings, and discloses a projection welding device for compressor housings, including a base. A hollow protective shell is fixedly connected to the top of the base. A circular groove is opened on the front side of the hollow protective shell. A hollow column is rotatably connected to the rear side of the inner wall of the hollow protective shell. An asynchronous motor is fixedly connected to the bottom of the inner wall of the hollow protective shell. A gear is fixedly connected to the output end of the asynchronous motor. A gear is fixedly connected to the outer wall of the hollow column. The outer wall of the gear meshes with the outer wall of the gear. A positioning plate is fixedly connected to the front end of the hollow column. A guide groove is opened on the front side of the positioning plate. In this utility model, by starting the asynchronous motor, the rotating plate is driven to rotate, thereby driving the rotating shaft, which can pull the inclined plate, and then drive the hollow column to rotate together, thereby adjusting the projection welding position and angle of the object, accelerating production efficiency, and improving practicality.

Description

Technical Field

[0001] This utility model relates to the field of projection welding technology for compressor housings, and in particular to a projection welding device for compressor housings. Background Technology

[0002] Projection welding equipment plays an important role in modern manufacturing. It is a special form of resistance welding. Its working principle is based on the current passing through the projections on the contact surface of the workpiece, generating resistance heat, which rapidly heats the metal at the projections to a plastic state. Under pressure, the metals are joined. It mainly consists of core components such as transformers, electrodes, controllers, and mechanical pressurization devices. The transformer is responsible for converting the input high voltage into a low voltage and high current suitable for the projection welding process, providing the energy required for the welding process. The electrodes are the key parts that directly act on the workpiece, and their shape and size are customized according to different welding requirements. The mechanical pressurization device is responsible for applying appropriate pressure during the welding process, which promotes the workpieces to bond tightly after heating, forming a strong weld.

[0003] A search revealed Chinese Patent Publication No. CN217018996U, which discloses a combined projection welding device for a refrigeration compressor housing, comprising a combined power head, an upper cover assembly, and a lower electrode seat. The upper electrode seat is fixedly installed at the bottom end of the combined power head, and a combined power piston is provided inside the combined power head. The upper electrode is detachably installed on the inner side of the combined power piston. The number of upper electrodes, lower electrodes, and pushing devices is the same. This invention utilizes a combined power head with an internal combined power piston and pushing device, along with an upper electrode seat and a lower electrode seat. This allows the device to employ a single machine, a single process, and a multi-station combined welding method. It performs a single clamping and positioning welding on multiple shell components and metal parts of different shapes, materials, and positions on the shell to complete the projection welding of the shell components. This effectively accelerates the production cycle, easily enabling automated projection welding production lines and improving production efficiency. While it can clamp different objects for projection welding, once clamped, it cannot change the orientation or orientation of the object, requiring manual operation, which reduces production efficiency and practicality. Furthermore, the processed area is always exposed during production, and the current and high temperature generated during processing can easily cause accidental injury to the operator, leading to decreased safety and increased production costs. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a compressor housing projection welding device, which aims to improve the problem that although the existing compressor housing projection welding device can clamp different objects for projection welding, it cannot change the orientation and orientation of the objects after clamping, requiring manual operation, which leads to reduced production efficiency and decreased practicality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a compressor housing projection welding device, comprising a base, a hollow protective shell fixedly connected to the top of the base, a circular groove formed on the front side of the hollow protective shell, a hollow column rotatably connected to the rear side of the inner wall of the hollow protective shell, an asynchronous motor I fixedly connected to the bottom of the inner wall of the hollow protective shell, a gear II fixedly connected to the output end of the asynchronous motor I, a gear I fixedly connected to the outer wall of the hollow column, the outer wall of gear I meshing with the outer wall of gear II, a positioning plate fixedly connected to the front end of the hollow column, a guide groove formed on the front side of the positioning plate, an asynchronous motor II fixedly connected to the rear side of the inner wall of the hollow column, a rotating disk fixedly connected to the output end of the asynchronous motor II, multiple rotating shafts II rotatably connected to the front side of each rotating disk, an inclined plate rotatably connected to the front end of each rotating shaft II, a rotating shaft I rotatably connected to the front side of the inclined plate near its edge, a clamping plate rotatably connected to the front end of each rotating shaft I, and a protective structure fixedly connected between adjacent parts of the base, the protective structure being used to protect personnel during processing.

[0006] Through the above technical solution: the rotation of the rotating disk is transmitted to the inclined plate through the second rotating shaft. Due to the inclination angle of the inclined plate, it can drive the first rotating shaft and the clamping plate to produce specific movements according to the predetermined trajectory during the rotation, thereby achieving precise clamping and fixing of the compressor housing placed on the positioning disk. During the clamping process, the clamping plate can be adjusted according to the shape and size of the compressor housing to ensure that the housing will not be displaced during the projection welding process, thus ensuring the stability and reliability of the welding quality. The guide groove is used to guide the clamping plate to slide within it, preventing it from deviating from the predetermined direction of movement.

[0007] As a further description of the above technical solution: The protective structure includes a fixed rod, with a fixed plate fixedly connected to one inward end of the fixed rod. A sliding plate is provided on the outer wall of the fixed rod, and a spring is fixedly connected to the opposite side of the sliding plate. A protective cover is fixedly connected to the top of the sliding plate. A U-shaped rod is fixedly connected to the front side of the base near the edge. A second sliding groove is formed on the inner wall of the U-shaped rod. A sliding block is slidably connected to the inner wall of the second sliding groove. A first rotating rod is rotatably connected to the top of the sliding block. A second rotating rod is rotatably connected to the opposite side of each of the two first rotating rods. A connecting plate is fixedly connected to the outer wall of the second rotating rod. Multiple sliding grooves are formed on the top of the base.

[0008] Through the above technical solution: the protective cover allows the operator to observe the processing inside the equipment and prevents flying debris generated during processing from causing damage to the operator. At the same time, the spring can push the sliding plate to slide on the fixed rod, thereby keeping the protective covers on both sides in a closed state, avoiding the protective covers being forgotten to be closed due to mistakes.

[0009] As a further description of the above technical solution: A handle is fixedly connected to the front side of the connecting plate, and an anti-slip sleeve is fixedly connected to the outer wall of the handle.

[0010] The above technical solution uses a handle to help the user pull the connecting plate.

[0011] As a further description of the above technical solution: An observation window is fixedly connected to the front side of the protective cover, and multiple sliding blocks are slidably connected at the same horizontal height.

[0012] The above technical solution provides an observation window for users to easily observe the situation inside the protective cover.

[0013] As a further description of the above technical solution: The hollow protective shell has multiple heat dissipation slots on its rear side, and a controller is fixedly connected to the right side of the base. The controller is electrically connected to asynchronous motor two and asynchronous motor one respectively.

[0014] The above technical solution uses heat dissipation grooves to help the structure inside the hollow protective shell dissipate heat.

[0015] As a further description of the above technical solution: A second fixing plate is fixedly connected to the center of the top surface of the hollow protective shell, and multiple hydraulic rods are fixedly connected to the top of the second fixing plate.

[0016] Through the above technical solution: the second fixing plate is used to support and install the hydraulic rod.

[0017] As a further description of the above technical solution: A movable plate is fixedly connected to the top of the hydraulic rod, a sliding column is fixedly connected to the inner wall of the movable plate, and a pressure plate is fixedly connected to the bottom of the sliding column.

[0018] The above technical solution involves using a pressure plate to mechanically pressurize the compressor housing to be processed.

[0019] As a further description of the above technical solution: An electrode plate is fixedly connected to the inner wall of the circular groove, and rubber blocks are fixedly connected to the outer wall of the clamping plate.

[0020] The above technical solution aims to increase friction while preventing wear on the compressor housing.

[0021] This utility model has the following beneficial effects: 1. In this utility model, by starting the asynchronous motor 2 to drive the rotating disk to rotate, thereby driving the rotating shaft 2 to pull the inclined plate, and then the rotating shaft 1 to pull the clamping plate along the guide groove to slide towards the center. After the object is clamped, the asynchronous motor 1 is started to drive the gear 2 to rotate, which in turn drives the hollow column to rotate together, thereby adjusting the projection welding position and angle of the object, speeding up production efficiency and improving practicality.

[0022] 2. In this utility model, the sliding plate is pushed by the spring to slide on the fixed rod, thereby pushing the protective cover to remain normally closed. The connecting plate is pulled along the first slide groove, which can pull the first rotating rod, and then pull the sliding block to slide along the second slide groove to open the protective cover. This achieves the goal of keeping the equipment normally closed, thereby ensuring safety during processing, improving safety, and reducing production costs. Attached Figure Description

[0023] Figure 1 This is a front perspective view of a compressor housing projection welding device proposed in this utility model; Figure 2 This is a top view of a compressor housing projection welding device proposed in this utility model; Figure 3 This is a side view of a compressor housing projection welding device proposed in this utility model; Figure 4 This is a partial structural illustration of a compressor housing projection welding device proposed in this utility model; Figure 5 This is a partial structural diagram of the rotating disk of a compressor housing projection welding device proposed in this utility model; Figure 6 This is a schematic diagram of a partial spring structure of a compressor housing projection welding device proposed in this utility model; Figure 7 This is a partial structural diagram of the second rotating rod of a compressor housing projection welding device proposed in this utility model.

[0024] Legend: 1. Base; 2. Protective structure; 201. Protective cover; 202. Connecting plate; 203. Slide groove one; 204. Spring; 205. Fixing rod; 206. Fixing plate one; 207. Sliding plate; 208. First rotating rod; 209. Slide groove two; 210. Sliding block; 211. U-shaped rod; 212. Second rotating rod; 3. Hollow protective shell; 4. Circular groove; 5. Hollow column; 6. Gear one; 7. Guide groove; 8. Clamp 9. Plate; 10. Gear II; 11. Asynchronous Motor I; 12. Asynchronous Motor II; 13. Rotating Disc; 14. Rotating Shaft I; 15. Positioning Disc; 16. Inclined Plate; 17. Rotating Shaft II; 18. Observation Window; 19. Hydraulic Rod; 20. Sliding Column; 21. Handle; 22. Anti-slip Sleeve; 23. Controller; 24. Heat Dissipation Slot; 25. Moving Plate; 26. Fixed Plate II; 27. Pressure Plate; 28. Electrode Plate; 29. ​​Rubber Block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see the appendix Figure 1 - Appendix Figure 3This utility model provides an embodiment of a compressor housing projection welding device, including a base 1, a hollow protective shell 3 fixedly connected to the top of the base 1, a circular groove 4 on the front side of the hollow protective shell 3, the base 1 being used to support and install the entire structure, a hollow column 5 rotatably connected to the rear side of the inner wall of the hollow protective shell 3, an asynchronous motor 10 fixedly connected to the bottom of the inner wall of the hollow protective shell 3, a gear 9 fixedly connected to the output end of the asynchronous motor 10, the asynchronous motor 10 being used to provide power for adjusting direction, a gear 6 fixedly connected to the outer wall of the hollow column 5, the outer wall of gear 6 meshing with the outer wall of gear 9, a positioning disk 14 fixedly connected to the front end of the hollow column 5, gear 6 and gear 9 being used for mutual transmission and rotation, the front of the positioning disk 14... A guide groove 7 is provided on the side. An asynchronous motor 11 is fixedly connected to the rear side of the inner wall of the hollow column 5. The asynchronous motor 11 is used to provide power for the clamping part. A rotating disk 12 is fixedly connected to the output end of the asynchronous motor 11. Multiple rotating shafts 16 are rotatably connected to the front side of the rotating disk 12. The rotation of the rotating disk 12 can drive the rotation of the rotating shafts 16. An inclined plate 15 is rotatably connected to the front end of the rotating shaft 16. A rotating shaft 13 is rotatably connected to the front side of the inclined plate 15 near the edge. A clamping plate 8 is rotatably connected to the front end of the rotating shaft 13. The rotation of the rotating shaft 16 can drive the rotation of the inclined plate 15. A protective structure 2 is fixedly connected between adjacent bases 1. The protective structure 2 is used to protect personnel during processing. The clamping plate 8 is used to clamp objects.

[0027] Specifically, the tilt angle of the inclined plate 15 allows it to drive the rotating shaft 13 and the clamping plate 8 to move horizontally during rotation, thereby clamping and fixing the compressor housing placed on the positioning plate 14. This ensures that the housing will not shift during projection welding, guaranteeing welding quality. The protective structure 2 prevents sparks and spatter generated during projection welding from causing injury to personnel, protecting operators and ensuring the safety and reliability of the production process. This provides a strong guarantee for the efficient operation of industrial production. The guide groove 7 guides the clamping plate 8 to slide within it, preventing it from deviating from the predetermined range of movement and causing structural failure.

[0028] Please see the appendix Figure 4 - Appendix Figure 6The protective structure 2 includes a fixing rod 205, with a fixing plate 206 fixedly connected to the inward end of the fixing rod 205. The fixing plate 206 is used to further fix the fixing rod 205. A sliding plate 207 is provided on the outer wall of the fixing rod 205. A spring 204 is fixedly connected to the opposite side of the sliding plate 207. A protective cover 201 is fixedly connected to the top of the sliding plate 207. The fixing rod 205 is used to guide the sliding direction of the sliding plate 207. A U-shaped rod 211 is fixedly connected to the front side of the base 1 near the edge. The spring 204 is used to push the sliding plate 207 to slide and reset. The inner wall of the base is provided with a second sliding groove 209. A sliding block 210 is slidably connected to the inner wall of the second sliding groove 209. The protective cover 201 is used to protect the processing position inside and prevent splashing. A first rotating rod 208 is rotatably connected to the top of the sliding block 210. A second rotating rod 212 is rotatably connected to the two first rotating rods 208 on opposite sides. The second rotating rod 212 can transmit power to the first rotating rod 208. A connecting plate 202 is fixedly connected to the outer wall of the second rotating rod 212. The top of the base 1 is provided with multiple first sliding grooves 203. The first sliding grooves 203 are used to guide the connecting plate 202 to slide on them. Specifically, the connecting plate 202 transmits the movement of the second rotating rod 212 on one side to the second rotating rod 212 on the other side, so that the second rotating rods 212 on both sides can move simultaneously. The protective structure 2 can protect the operator from various dangerous factors generated during equipment operation, providing a solid and reliable guarantee for the safe and efficient operation of industrial production. The protective cover 201 can cover the dangerous area of ​​the equipment in all directions and block the sparks and spatter generated during projection welding.

[0029] Please see the appendix Figure 2 - Appendix Figure 5 The hollow protective shell 3 has multiple heat dissipation slots 23 on its rear side. The base 1 has a controller 22 fixedly connected to its right side. The heat dissipation slots 23 are used to dissipate heat from the hollow protective shell 3. The connecting plate 202 has a handle 20 fixedly connected to its front side. The handle 20 has an anti-slip sleeve 21 fixedly connected to its outer wall. The controller 22 is electrically connected to the asynchronous motor 11 and the asynchronous motor 10 respectively. The controller 22 is used to control the start and stop of the entire device. The protective cover 201 has an observation window 17 fixedly connected to its front side. Multiple sliding blocks 210 are slidably connected at the same horizontal height. The handle 20 is used to facilitate the user to pull the connecting plate 202. Specifically, the observation window 17 allows the operator to clearly observe the projection welding process inside the equipment, the anti-slip sleeve 21 increases the friction between the hand and the handle 20, and prevents the operator from slipping and losing their hand when pulling the connecting plate 202 by pulling the handle 20. The controller 22 can transmit electrical signals to the corresponding electrical components, thereby controlling the asynchronous motor 21 and the asynchronous motor 10.

[0030] Please see the appendix Figure 5 - Appendix Figure 7 An electrode plate 27 is fixedly connected to the inner wall of the circular groove 4, and a rubber block 28 is fixedly connected to the outer wall of the clamping plate 8. The electrode plate 27 is used to energize the object. A moving plate 24 is fixedly connected to the top of the hydraulic rod 18, and a sliding column 19 is fixedly connected to the inner wall of the moving plate 24. The hydraulic rod 18 is used to push the moving plate 24 to move. A pressure plate 26 is fixedly connected to the bottom of the sliding column 19. A second fixing plate 25 is fixedly connected to the middle of the top surface of the hollow protective shell 3. Multiple hydraulic rods 18 are fixedly connected to the top of the second fixing plate 25. The pressure plate 26 is used to mechanically clamp the object. Specifically, the pressure applied by the pressure plate 26 and the current provided by the electrode plate 27 work together, while the clamping plate 8 firmly holds the housing by the rubber block 28, together ensuring the quality and stability of the projection welding of the compressor housing. The electrode plate 27 can focus the welding current on the welding point, and the rubber block 28 can play a buffering role to prevent the clamping plate 8 from scratching or damaging the surface of the compressor housing when clamping it, effectively protecting the appearance and surface quality of the compressor housing.

[0031] Working principle: When projecting the compressor housing, it is first placed on the electrode plate 27. Then, the hydraulic rod 18 is activated to pull the moving plate 24, so that the sliding column 19 can move down with the moving plate 24, thereby pushing the pressure plate 26 to cooperate with the electrode plate 27 to clamp the object from top to bottom. Then, the asynchronous motor 11 is activated to drive the rotating disk 12 to rotate, which in turn drives the rotating shaft 16 to pull the inclined plate 15 to rotate together. Then, the rotating shaft 13 pulls the clamping plate 8 to slide inward in the guide groove 7 to clamp the object from left to right. After the projection welding of the compressor housing is completed, the sliding column 19 is retracted and the asynchronous motor 10 is activated to drive the gear 9 to rotate, so that the gear 6 can be driven to rotate together, which in turn drives the hollow column 5 to rotate, making the whole rotation, and then projecting the other side of the compressor housing is welded. No manual or other robotic arms are required to rotate. When projection welding is performed, the spring 204 pushes the sliding plate 207 to slide on the fixed rod 205, thereby pushing the protective cover 201 to close together and cover the object being processed inside. After processing is completed, the connecting plate 202 can be pulled backward along the first slide groove 203, which drives the second rotating rod 212 to move together, so that it can rotate and pull the first rotating rod 208, thereby allowing the sliding block 210 to slide along the second slide groove 209, thereby pulling the protective cover 201, which can pull the sliding plate 207 to squeeze the spring 204, compressing it, thereby opening the protective cover 201.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compressor housing projection welding apparatus comprising a base (1), characterised in that: A hollow protective shell (3) is fixedly connected to the top of the base (1). A circular groove (4) is provided on the front side of the hollow protective shell (3). A hollow column (5) is rotatably connected to the rear side of the inner wall of the hollow protective shell (3). An asynchronous motor (10) is fixedly connected to the bottom of the inner wall of the hollow protective shell (3). A gear (9) is fixedly connected to the output end of the asynchronous motor (10). A gear (6) is fixedly connected to the outer wall of the hollow column (5). The outer wall of the gear (6) meshes with the outer wall of the gear (9). A positioning plate (14) is fixedly connected to the front end of the hollow column (5). A circular groove (4) is provided on the front side of the positioning plate (14). The guide groove (7) has an asynchronous motor (11) fixedly connected to the rear side of the inner wall of the hollow column (5). The output end of the asynchronous motor (11) is fixedly connected to a rotating disk (12). The front side of the rotating disk (12) is rotatably connected to multiple rotating shafts (16). The front end of the rotating shaft (16) is rotatably connected to an inclined plate (15). The front side of the inclined plate (15) is rotatably connected to a rotating shaft (13) near the edge. The front end of the rotating shaft (13) is rotatably connected to a clamping plate (8). The adjacent bases (1) are fixedly connected to a protective structure (2). The protective structure (2) is used to protect personnel during processing.

2. A projection welder for compressor housings according to claim 1, characterized in that: The protective structure (2) includes a fixed rod (205), a fixed plate (206) is fixedly connected to the inward end of the fixed rod (205), a sliding plate (207) is provided on the outer wall of the fixed rod (205), a spring (204) is fixedly connected to the opposite side of the sliding plate (207), a protective cover (201) is fixedly connected to the top of the sliding plate (207), and a U-shaped rod (211) is fixedly connected to the front side of the base (1) near the edge. The inner wall of (211) is provided with a second sliding groove (209), and a sliding block (210) is slidably connected to the inner wall of the second sliding groove (209). A first rotating rod (208) is rotatably connected to the top of the sliding block (210). A second rotating rod (212) is rotatably connected to the two first rotating rods (208) on opposite sides. A connecting plate (202) is fixedly connected to the outer wall of the second rotating rod (212). The top of the base (1) is provided with multiple first sliding grooves (203).

3. A compressor shell projection welding apparatus according to claim 2, wherein: A handle (20) is fixedly connected to the front side of the connecting plate (202), and an anti-slip sleeve (21) is fixedly connected to the outer wall of the handle (20).

4. A projection welder for compressor housings as defined in claim 2, characterized in that: The front side of the protective cover (201) is fixedly connected to an observation window (17), and the multiple sliding blocks (210) are all slidably connected at the same horizontal height.

5. A projection welder for compressor housings as defined in claim 1, characterized in that: The hollow protective shell (3) has multiple heat dissipation slots (23) on its rear side. The base (1) is fixedly connected to a controller (22), which is electrically connected to the asynchronous motor (11) and the asynchronous motor (10) respectively.

6. The compressor housing projection welding equipment according to claim 1, characterized in that: The hollow protective shell (3) has a fixed plate two (25) fixedly connected to the middle of its top surface, and a plurality of hydraulic rods (18) are fixedly connected to the top of the fixed plate two (25).

7. A projection welder for compressor housings according to claim 6, characterized in that: The top end of the hydraulic rod (18) is fixedly connected to a movable plate (24), the inner wall of the movable plate (24) is fixedly connected to a sliding column (19), and the bottom end of the sliding column (19) is fixedly connected to a pressure plate (26).

8. A projection welder for compressor housings as defined in claim 1, characterized in that: The inner wall of the circular groove (4) is fixedly connected to an electrode plate (27), and the outer wall of the clamp (8) is fixedly connected to a rubber block (28).

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