Stamping and casting die for compressor parts

Abstract

The invention relates to the technical field of compressor part casting, in particular to a compressor part stamping and casting mold which comprises a bottom plate, and a hanging bracket is fixedly mounted at the upper end of the bottom plate; the stamping casting mechanism comprises a first hydraulic cylinder fixedly installed on the hanging bracket, a lifting plate is fixedly installed at the lower end of the first hydraulic cylinder, a telescopic rod is fixedly installed at the lower end of the lifting plate, a connecting plate is fixedly installed at the lower end of the telescopic rod, and the outer side of the telescopic rod is sleeved with a first spring; according to the device, the second hydraulic cylinder drives the sealing column to ascend, the exhaust hole is opened, gas can be conveniently exhausted from different directions, the exhaust quality is improved, and the situation that when a large amount of gas is exhausted from a gap between the upper stamping die and the lower passive die, molten metal is sputtered out of the gap between the upper stamping die and the lower passive die by the gas is reduced; and the stamping and casting quality is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of compressor part casting, and particularly to a stamping and casting mold for compressor parts. Background Art

[0002] Casting is a method of pouring liquid metal into a casting cavity adapted to the shape of the part, and waiting for it to cool and solidify to obtain the part or blank. The substances to be cast are mostly metals that were originally solid but heated to a liquid state (e.g., copper, iron, aluminum, tin, lead, etc.), and the materials of the casting mold can be sand, metal or even ceramic. Depending on different requirements, different methods will be used.

[0003] After retrieval, the patent with the application number CN202022568443.4 discloses a "stamping type metal casting mold", which includes a fixed bottom plate. On both sides of the top of the fixed bottom plate, there are fixed rods. At the top of the fixed rods, there are fixed limit blocks. A mover is sleeved outside the two fixed rods, and a connecting seat is threadedly connected to the bottom of the two movers.

[0004] However, in the above patent, there is easily gas in the mold cavity of the metal liquid, and if it cannot be discharged in time, it will cause cavities in the cooled and formed parts, thereby affecting the casting quality of the parts. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that in the prior art, there is easily gas in the mold cavity of the metal liquid, and if it cannot be discharged in time, it will cause cavities in the cooled and formed parts, thereby affecting the casting quality of the parts, and to propose a stamping and casting mold for compressor parts.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions: A stamping and casting mold for compressor parts includes a bottom plate, and a suspension bracket is fixedly installed at the upper end of the bottom plate; There is also a stamping and casting mechanism for stamping and casting compressor parts. The stamping and casting mechanism includes a hydraulic cylinder I fixedly installed on the suspension bracket. At the lower end of the hydraulic cylinder I, there is a lifting plate fixedly installed. At the lower end of the lifting plate, there is a telescopic rod fixedly installed. At the lower end of the telescopic rod, there is a connecting plate fixedly installed. A spring I is sleeved outside the telescopic rod, and the upper and lower ends of the spring I are respectively fixedly connected to the lifting plate and the connecting plate. A stamping upper die is slidably installed at the lower end of the connecting plate. A spring II is fixedly installed at the left end of the connecting plate, and the left end of the spring II is fixedly installed on the stamping upper die. A passive lower die is arranged below the stamping upper die. The lower end of the passive lower die is slidably installed on the bottom plate. A spring III is fixedly installed at the left end of the passive lower die, and the left end of the spring III is fixedly installed on the bottom plate; A synchronization mechanism is also provided for synchronously sliding the stamping upper die and the passive lower die. The synchronization mechanism includes a synchronization plate fixedly installed at the upper end of the stamping upper die. A guide rod is slidably installed through the right side of the synchronization plate, and the lower end of the guide rod is fixedly installed on the passive lower die.

[0007] Preferably, a first convex block plate is fixedly installed on the right side of the upper end of the passive lower die. A passive pressing plate is provided above the first convex block plate. The right end of the passive pressing plate is slidably installed on a hanging bracket, and a fourth spring is fixedly installed at the lower end of the passive pressing plate. The lower end of the fourth spring is fixedly installed on the bottom plate.

[0008] Preferably, exhaust holes are formed on both the front and rear sides of the stamping upper die. Sealing columns are slidably installed through the exhaust holes. A second hydraulic cylinder is fixedly installed at the upper end of each sealing column, and the second hydraulic cylinder is fixedly installed on the stamping upper die.

[0009] Preferably, closing rings are slidably installed on both the left and right sides of the upper end of the passive lower die. Rack bars are fixedly installed on the front sides of the closing rings. A gear is meshed between the rack bars, and the gear is rotatably installed on the passive lower die.

[0010] Preferably, a third hydraulic cylinder is fixedly installed at the upper end of the left closing ring, and the lower end of the third hydraulic cylinder is fixedly installed on the passive lower die.

[0011] Preferably, limiting plates are fixedly installed on both the left and right sides of the upper end of the stamping upper die. Fixed plates are fixedly installed at the positions directly below the limiting plates on the upper end of the passive lower die.

[0012] Preferably, fourth hydraulic cylinders are fixedly installed on both the left and right sides of the upper end of the passive lower die. Oblique block plates are fixedly installed at the ends of the fourth hydraulic cylinders close to each other corresponding to the limiting plates.

[0013] Preferably, a ring seat is rotatably installed at the lower end of the synchronization plate. At least four scraping blades are fixedly installed at equal intervals at the lower end of the ring seat. The ends of the scraping blades close to each other are all abutted and attached to the surface of the guide rod.

[0014] Preferably, a fifth spring is fixedly installed on the outer side of the ring seat, and the other end of the fifth spring is fixedly connected to the synchronization plate.

[0015] Preferably, a fixed rod is fixedly installed at the right end of the ring seat. A second convex block plate is provided below the fixed rod, and the lower end of the second convex block plate is fixedly installed on the passive lower die.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In the present invention, when the lifting plate descends, it will gradually approach and contact the passive pressing plate, causing the passive pressing plate to slide downward on the hanging bracket, compressing the fourth spring. The passive pressing plate will gradually fit and press against the first bump plate on the lower side, thereby driving the passive lower die and the stamping upper die pressed into the passive lower die to slide synchronously to the left (the passive lower die slides to the left on the bottom plate, and the stamping upper die slides to the left on the connecting plate), respectively squeezing and stretching the third spring and the second spring. When the passive pressing plate descends and separates from the bump on the first bump plate, it will drive the stamping upper die and the passive lower die to slide back to their original positions under the action of the third spring and the second spring, realizing the left and right shaking of the stamping upper die and the passive lower die, which is beneficial to discharging the gas in the molten metal in the passive lower die from the gap between the stamping upper die and the passive lower die and the exhaust holes to the outside world, improving the gas discharge efficiency at different positions in the molten metal, and reducing the situation where the gas in the molten metal cannot be discharged, resulting in cavities inside the parts after cooling and forming.

[0017] 2. In the present invention, the second hydraulic cylinder drives the sealing column to rise, opening the exhaust hole, which is also convenient for gas to be discharged from different directions, improving the exhaust quality, and reducing the situation where a large amount of gas splashes out the molten metal from the gap between the stamping upper die and the passive lower die when the gas is discharged, ensuring the quality of stamping casting.

[0018] 3. In the present invention, when the stamping upper die gradually descends into the passive lower die, the third hydraulic cylinder is started to push the closed ring on the left side and the rack fixed thereto to move to the right, driving the gear to rotate. The gear drives the rack and the closed ring on the other side to move to the left. At this time, the two closed rings move relatively until the mutually approaching ends of the closed rings fit against the outer edge of the stamping upper die. This is convenient for blocking the gap between the stamping upper die and the passive lower die, reducing the outward sputtering of the molten metal when the gas is discharged, resulting in the loss of molten metal and cost savings, as well as preventing the molten metal from splashing and scalding the nearby workers, and the splashed molten metal adhering to the vicinity of the gap between the stamping upper die and the passive lower die, which requires subsequent edge grinding processes, improving the stamping casting quality and efficiency of the compressor parts.

[0019] 4. In the present invention, when the lower end of the limiting plate contacts and abuts against the upper end of the fixed plate, it is convenient to limit the stamping upper die, preventing the stamping upper die from continuing to press downward into the passive lower die, resulting in unqualified production thickness of the compressor parts and the overflow of excess molten metal from the gap between the stamping upper die and the passive lower die, ensuring the production quality of the compressor parts.

[0020] 5. In the present invention, the fourth hydraulic cylinder is started to push the two inclined block plates to approach each other. The inclined block plates are convenient for pushing the two limiting plates to drive the stamping upper die to descend, so that the lower end of the limiting plate completely abuts and fits against the fixed plate, effectively preventing the situation where the stamping upper die cannot be pressed in place due to excessive gas in the molten metal, improving the stamping casting quality of the compressor parts.

[0021] 6. In the present invention, when the upper stamping die reaches the stamping position, the second hydraulic cylinder is started to push the sealing column downward, so that the lower end of the sealing column is kept horizontal with the lower end of the upper stamping die, and the exhaust hole is blocked again until the part is cooled. If the lower end of the sealing column extends to the lower side of the lower end of the upper stamping die, it means that the exhaust process of the molten metal in the passive lower die is missing. The operator operates the second hydraulic cylinder to drive the sealing column to rise, and the exhaust hole is opened again, which is beneficial for the operator to supplement the molten metal into the passive lower die through the exhaust hole. After the supplement is completed, the second hydraulic cylinder drives the sealing column to descend again until the lower end of the sealing column is kept at the same horizontal level as the lower end of the upper stamping die, which is convenient for supplementing the molten metal lost during the exhaust process and improves the production quality of the compressor parts.

[0022] 7. In the present invention, when the upper stamping die moves up and down, the set synchronous plate moves up and down synchronously with the upper stamping die, and the synchronous plate slides up and down synchronously on the guide rod. The set synchronous plate and guide rod are beneficial for keeping the upper stamping die and the passive lower die always on the same axis center, avoiding the situation that when the upper stamping die and the passive lower die shake left and right during exhaust and the second spring and the third spring push the upper stamping die and the passive lower die to reset respectively, the axis center deviation of the upper stamping die and the passive lower die is caused, thereby improving the stamping and casting quality of the compressor parts.

[0023] 8. In the present invention, when the synchronous plate slides down on the guide rod, it will also drive the ring seat, the scraper and the fixed rod to descend synchronously. Blocked by the second convex plate, the fixed rod will drive the ring seat and the scraper to rotate on the synchronous plate, compressing the fifth spring, and the fifth spring will play a role in resetting. The set scraper is convenient for scraping the molten metal adhered to the surface of the guide rod, ensuring the smoothness of the surface of the guide rod, being beneficial for the synchronous plate to slide up and down reciprocally on the guide rod smoothly, ensuring that the upper stamping die and the passive lower die are always on the same axis center, and improving the stamping and casting quality of the compressor parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the overall three-dimensional structure schematic diagram of the present invention; Figure 2 is for the present invention Figure 1 rear three-dimensional structure schematic diagram; Figure 3 is the sectional structure schematic diagram of the upper stamping die and the exhaust hole in the present invention; Figure 4 is for the present invention Figure 1 right three-dimensional structure schematic diagram; Figure 5 is for the present invention Figure 1 partial enlarged structure schematic diagram of the upper stamping die, the telescopic rod and the first hydraulic cylinder in the present invention; Figure 6 is for the present invention Figure 1Schematic diagram of the structure at position A in Figure 7 For the present invention Figure 5 Schematic diagram of the structure at position B in Figure 8 For the present invention Figure 2 Schematic diagram of the structure at position C in Figure 9 For the present invention Figure 3 Schematic diagram of the structure at position D in Figure 10 For the present invention Figure 4 Schematic diagram of the structure at position E in In the figure: 1. Bottom plate; 2. Hanger Stamping and casting mechanism: 3. Hydraulic cylinder 1; 4. Lifting plate; 5. Telescopic rod; 6. Connecting plate; 7. Stamping upper die; 8. Spring 1; 9. Spring 2; 10. Passive lower die; 11. Spring 3; 12. Convex plate 1; 13. Passive pressing plate; 14. Spring 4; 15. Exhaust hole; 16. Sealing column; 17. Hydraulic cylinder 2; 18. Sealing ring; 19. Rack; 20. Gear; 21. Hydraulic cylinder 3; 22. Limiting plate; 23. Fixed plate; 24. Inclined plate; 25. Hydraulic cylinder 4 Synchronization mechanism: 26. Synchronization plate; 27. Guide rod; 28. Ring seat; 29. Scraper; 30. Spring 5; 31. Fixed rod; 32. Convex plate 2 Specific implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0027] Refer to Figures 1 - 10, a stamping and casting die for compressor parts, including a bottom plate 1, with a hanging bracket 2 fixedly installed at the upper end of the bottom plate 1; there is also a stamping and casting mechanism for stamping and casting compressor parts. The stamping and casting mechanism includes a hydraulic cylinder 1 3 fixedly installed on the hanging bracket 2. The lower end of the hydraulic cylinder 1 3 is fixedly installed with a lifting plate 4. The lower end of the lifting plate 4 is fixedly installed with a telescopic rod 5. The lower end of the telescopic rod 5 is fixedly installed with a connecting plate 6. A first spring 8 is sleeved on the outer side of the telescopic rod 5. The upper and lower ends of the first spring 8 are respectively fixedly connected with the lifting plate 4 and the connecting plate 6. A stamping upper die 7 is slidably installed at the lower end of the connecting plate 6. A second spring 9 is fixedly installed at the left end of the connecting plate 6. The left end of the second spring 9 is fixedly installed on the stamping upper die 7. A passive lower die 10 is arranged below the stamping upper die 7. The lower end of the passive lower die 10 is slidably installed on the bottom plate 1. A third spring 11 is fixedly installed at the left end of the passive lower die 10. The left end of the third spring 11 is fixedly installed on the bottom plate 1. A first convex block plate 12 is fixedly installed at the upper right side of the passive lower die 10. A passive pressing plate 13 is arranged above the first convex block plate 12. The right end of the passive pressing plate 13 is slidably installed on the hanging bracket 2, and a fourth spring 14 is fixedly installed at the lower end of the passive pressing plate 13. The lower end of the fourth spring 14 is fixedly installed on the bottom plate 1. Exhaust holes 15 are formed on both the front and rear sides of the stamping upper die 7. Sealing columns 16 are slidably installed through the exhaust holes 15. The upper ends of the sealing columns 16 are fixedly installed with hydraulic cylinders 2 17. The hydraulic cylinders 2 17 are fixedly installed on the stamping upper die 7. Sealing rings 18 are slidably installed on both the left and right sides of the upper end of the passive lower die 10. Rack bars 19 are fixedly installed on the front sides of the sealing rings 18. A gear 20 is meshed between the rack bars 19. The gear 20 is rotatably installed on the passive lower die 10. A hydraulic cylinder 3 21 is fixedly installed at the upper end of the left sealing ring 18. The lower end of the hydraulic cylinder 3 21 is fixedly installed on the passive lower die 10. Limit plates 22 are fixedly installed on both the left and right sides of the upper end of the stamping upper die 7. Fixed plates 23 are fixedly installed at the positions directly below the limit plates 22 at the upper end of the passive lower die 10. Hydraulic cylinders 4 25 are fixedly installed on both the left and right sides of the upper end of the passive lower die 10. Oblique block plates 24 are fixedly installed at the ends of the hydraulic cylinders 4 25 close to each other corresponding to the limit plates 22; During operation, the high-temperature liquid metal to be cast is poured into the passive lower die 10. The hydraulic cylinder 1 is started to drive the lifting plate 4 and the telescopic rod 5 to descend. The telescopic rod 5 drives the connecting plate 6 and the stamping upper die 7 to descend, so that the stamping upper die 7 is pressed in the passive lower die 10. After cooling, the parts are stamped and cast into a specific shape, completing the stamping and casting work of the compressor parts. When the lifting plate 4 descends, it will gradually approach and contact the extrusion of the passive pressing plate 13, causing the passive pressing plate 13 to slide downward on the hanger 2, compressing the fourth spring 14. The passive pressing plate 13 will gradually fit and extrude the first bump plate 12 on the lower side, thereby driving the passive lower die 10 and the stamping upper die 7 pressed into the passive lower die 10 to slide synchronously to the left (the passive lower die 10 slides to the left on the bottom plate 1, and the stamping upper die 7 slides to the left on the connecting plate 6), respectively extruding and stretching the third spring 11 and the second spring 9. When the passive pressing plate 13 descends and separates from the bumps on the first bump plate 12, it will drive the stamping upper die 7 and the passive lower die 10 to slide back to their original positions under the action of the third spring 11 and the second spring 9, realizing the left and right shaking of the stamping upper die 7 and the passive lower die 10, which is beneficial to discharging the gas in the molten metal in the passive lower die 10 from the gap between the stamping upper die 7 and the passive lower die 10 and the exhaust hole 15 to the outside world, improving the gas discharge efficiency at different positions in the molten metal, reducing the situation that the gas in the molten metal cannot be discharged, resulting in cavities inside the parts after cooling and forming. At the same time, the hydraulic cylinder 2 drives the sealing column 16 to rise, opening the exhaust hole 15, which is also convenient for the gas to be discharged from different directions, improving the exhaust quality, and reducing the situation that when a large amount of gas is discharged from the gap between the stamping upper die 7 and the passive lower die 10, the gas splashes the molten metal out of the gap between the stamping upper die 7 and the passive lower die 10, ensuring the quality of stamping casting. When the stamping upper die 7 gradually descends into the passive lower die 10, the hydraulic cylinder 3 is started to push the left sealing ring 18 and the rack 19 fixed to it to move to the right, driving the gear 20 to rotate. The gear 20 drives the rack 19 and the sealing ring 18 on the other side to move to the left. At this time, the two sealing rings 18 are in relative motion until the mutually approaching ends of the sealing rings 18 fit on the outer edge of the stamping upper die 7, which is convenient for blocking the gap between the stamping upper die 7 and the passive lower die 10, reducing the loss of molten metal caused by the outward sputtering of molten metal when the gas is discharged, saving costs, preventing the molten metal from splashing and scalding the nearby workers, and the splashed molten metal adhering to the vicinity of the gap between the stamping upper die 7 and the passive lower die 10, which also requires subsequent edge grinding processes, improving the stamping casting quality and efficiency of the compressor parts. When the lower end of the set limit plate 22 contacts and abuts against the upper end of the fixed plate 23, it is convenient to limit the stamping upper die 7, preventing the stamping upper die 7 from continuing to be pressed downward into the passive lower die 10, resulting in unqualified production thickness of the compressor parts and the overflow of excess molten metal from the gap between the stamping upper die 7 and the passive lower die 10, ensuring the production quality of the compressor parts. The hydraulic cylinder 4 is started to push the two inclined block plates 24 to approach each other,The inclined block plate 24 facilitates the pushing of the two side limiting plates 22 to drive the stamping upper die 7 to descend, so that the lower ends of the limiting plates 22 are completely abutted and fitted on the fixed plate 23, effectively preventing the situation that the stamping upper die 7 cannot be stamped in place due to excessive gas in the molten metal, improving the stamping casting quality of the compressor parts. When the stamping upper die 7 is stamped in place, the hydraulic cylinder two 17 is started to push the sealing column 16 to descend, so that the lower end of the sealing column 16 is kept horizontal with the lower end of the stamping upper die 7, and the exhaust hole 15 is blocked again until the part is cooled. If the lower end of the sealing column 16 extends to the lower side of the lower end of the stamping upper die 7, it means that the exhaust process of the molten metal in the passive lower die 10 is missing. The staff operates the hydraulic cylinder two 17 to drive the sealing column 16 to rise and open the exhaust hole 15 again, which is beneficial for the staff to supplement the molten metal into the passive lower die 10 through the exhaust hole 15. After the supplement is completed, the hydraulic cylinder two 17 drives the sealing column 16 to descend again until the lower end of the sealing column 16 is kept at the same horizontal level as the lower end of the stamping upper die 7, facilitating the supplement of the molten metal lost during the exhaust process and improving the production quality of the compressor parts.

[0028] As an embodiment of the present invention, a synchronization mechanism for synchronously sliding the stamping upper die 7 and the passive lower die 10 is further provided. The synchronization mechanism includes a synchronization plate 26 fixedly installed at the upper end of the stamping upper die 7. A guide rod 27 is slidably installed through the right side of the synchronization plate 26, and the lower end of the guide rod 27 is fixedly installed on the passive lower die 10. A ring seat 28 is rotatably installed at the lower end of the synchronization plate 26. At least four scraping knives 29 are fixedly installed at equal intervals at the lower end of the ring seat 28. The mutually approaching ends of the scraping knives 29 are all abutted and fitted on the surface of the guide rod 27. A spring five 30 is fixedly installed on the outer side of the ring seat 28, and the other end of the spring five 30 is fixedly connected to the synchronization plate 26. A fixed rod 31 is fixedly installed at the right end of the ring seat 28. A convex block plate two 32 is provided below the fixed rod 31, and the lower end of the convex block plate two 32 is fixedly installed on the passive lower die 10; During operation, when the upper stamping die 7 moves up and down, the set synchronous plate 26 moves up and down synchronously with the upper stamping die 7. The synchronous plate 26 slides up and down synchronously on the guide rod 27. The set synchronous plate 26 and the guide rod 27 are beneficial to keeping the upper stamping die 7 and the passive lower die 10 on the same axis all the time, avoiding the situation of axial deviation of the upper stamping die 7 and the passive lower die 10 when the upper stamping die 7 and the passive lower die 10 shake left and right during exhaust. When the spring two 9 and the spring three 11 push the upper stamping die 7 and the passive lower die 10 to reset respectively, the stamping casting quality of the compressor parts is improved. When the synchronous plate 26 slides down on the guide rod 27, it will also drive the ring seat 28, the scraper 29 and the fixing rod 31 to descend synchronously. Blocked by the bump plate two 32, the fixing rod 31 will drive the ring seat 28 and the scraper 29 to rotate on the synchronous plate 26, compressing the spring five 30. The spring five 30 will play a role in resetting. The set scraper 29 is convenient for scraping the molten metal adhered to the surface of the guide rod 27, ensuring the smoothness of the surface of the guide rod 27, which is beneficial to the synchronous plate 26 to slide up and down reciprocally on the guide rod 27 smoothly, ensuring that the upper stamping die 7 and the passive lower die 10 are always on the same axis, and improving the stamping casting quality of the compressor parts.

[0029] Working principle: When the present invention is in use, the high-temperature liquid metal to be cast is poured into the passive lower die 10. The hydraulic cylinder 1 is started to drive the lifting plate 4 and the telescopic rod 5 to descend. The telescopic rod 5 drives the connecting plate 6 and the stamping upper die 7 to descend, so that the stamping upper die 7 is pressed in the passive lower die 10. After cooling, the part is stamped and cast into a specific shape, completing the stamping and casting work of the compressor part. When the lifting plate 4 descends, it will gradually approach and contact the extrusion passive pressing plate 13, causing the passive pressing plate 13 to slide downward on the hanger 2 and compress the spring four 14. The passive pressing plate 13 will gradually fit and extrude the lower convex plate 12, thereby driving the passive lower die 10 and the stamping upper die 7 pressed into the passive lower die 10 to slide synchronously to the left (the passive lower die 10 slides to the left on the bottom plate 1, and the stamping upper die 7 slides to the left on the connecting plate 6), respectively extruding and stretching the spring three 11 and the spring two 9. When the passive pressing plate 13 descends and separates from the convex block on the convex plate 12, under the action of the spring three 11 and the spring two 9, it drives the stamping upper die 7 and the passive lower die 10 to slide back to their original positions, realizing the left and right shaking of the stamping upper die 7 and the passive lower die 10, which is beneficial to discharging the gas in the molten metal in the passive lower die 10 from the gap between the stamping upper die 7 and the passive lower die 10 and the exhaust hole 15 to the outside, improving the gas discharge efficiency at different positions in the molten metal, reducing the situation that the gas in the molten metal cannot be discharged, resulting in cavities inside the cooled and formed part. At the same time, the hydraulic cylinder 2 drives the sealing column 16 to rise, opening the exhaust hole 15, which is also convenient for the gas to be discharged from different directions, improving the exhaust quality, and reducing the situation that when a large amount of gas is discharged from the gap between the stamping upper die 7 and the passive lower die 10, the gas splashes out the molten metal from the gap between the stamping upper die 7 and the passive lower die 10, ensuring the quality of stamping and casting. When the stamping upper die 7 gradually descends into the passive lower die 10, the hydraulic cylinder 3 is started to push the left sealing ring 18 and the rack 19 fixed thereto to move to the right, driving the gear 20 to rotate. The gear 20 drives the other rack 19 and the sealing ring 18 to move to the left. At this time, the two sealing rings 18 move relatively until the mutually approaching ends of the sealing rings 18 fit on the outer edge of the stamping upper die 7, which is convenient for blocking the gap between the stamping upper die 7 and the passive lower die 10, reducing the outward sputtering of the molten metal when the gas is discharged, causing the loss of molten metal and saving costs, as well as scalding the nearby staff, and the sputtered molten metal adheres to the vicinity of the gap between the stamping upper die 7 and the passive lower die 10, and subsequent edge grinding operations are required, improving the stamping and casting quality and efficiency of the compressor part. When the lower end of the set limit plate 22 contacts and abuts against the upper end of the fixed plate 23, it is convenient to limit the stamping upper die 7, preventing the stamping upper die 7 from continuing to press downward into the passive lower die 10, resulting in unqualified production thickness of the compressor part and the overflow of excess molten metal from the gap between the stamping upper die 7 and the passive lower die 10, ensuring the production quality of the compressor part. The hydraulic cylinder 4 is started to push the two inclined block plates 24 to approach each other.The inclined block plate 24 facilitates pushing the limiting plates 22 on both sides to drive the upper stamping die 7 to descend, so that the lower ends of the limiting plates 22 are completely abutted and fitted on the fixed plate 23, effectively preventing the situation that the upper stamping die 7 cannot stamp in place due to excessive gas in the molten metal, improving the stamping and casting quality of the compressor parts. When the upper stamping die 7 stamps in place, the hydraulic cylinder two 17 is started to push the sealing column 16 to descend, so that the lower end of the sealing column 16 is kept horizontal with the lower end of the upper stamping die 7, and the exhaust hole 15 is blocked again until the part is cooled. If the lower end of the sealing column 16 extends to the lower side of the lower end of the upper stamping die 7, it means that the molten metal in the passive lower die 10 lacks the exhaust process. The staff operates the hydraulic cylinder two 17 to drive the sealing column 16 to rise, and the exhaust hole 15 is opened again, which is beneficial for the staff to supplement the molten metal inside the passive lower die 10 through the exhaust hole 15. After the supplement is completed, the hydraulic cylinder two 17 drives the sealing column 16 to descend again until the lower end of the sealing column 16 is kept at the same horizontal level as the lower end of the upper stamping die 7, which is convenient for supplementing the molten metal lost during the exhaust process and improves the production quality of the compressor parts. When the upper stamping die 7 moves up and down, the set synchronous plate 26 moves up and down synchronously with the upper stamping die 7, and the synchronous plate 26 slides up and down synchronously on the guide rod 27. The set synchronous plate 26 and guide rod 27 are beneficial for keeping the upper stamping die 7 and the passive lower die 10 on the same axis all the time, avoiding the situation that when the upper stamping die 7 and the passive lower die 10 vibrate left and right during exhaust and the springs two 9 and three 11 push the upper stamping die 7 and the passive lower die 10 to reset respectively, resulting in the deviation of the axis of the upper stamping die 7 and the passive lower die 10, thereby improving the stamping and casting quality of the compressor parts. When the synchronous plate 26 slides down on the guide rod 27, it will also drive the ring seat 28, the scraper 29 and the fixing rod 31 to descend synchronously. The fixing rod 31 is blocked by the convex block plate two 32, and will drive the ring seat 28 and the scraper 29 to rotate on the synchronous plate 26, compressing the spring five 30, and the spring five 30 will play a role in resetting. The set scraper 29 is convenient for scraping the molten metal adhered to the surface of the guide rod 27, ensuring the smoothness of the surface of the guide rod 27, being beneficial for the synchronous plate 26 to slide up and down reciprocally on the guide rod 27 smoothly, ensuring that the upper stamping die 7 and the passive lower die 10 are always located on the same axis, and improving the stamping and casting quality of the compressor parts.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitution or change, and should be covered by the protection scope of the present invention.

Claims

1. A stamping and casting mold for compressor parts, including a bottom plate (1), characterized in that, The upper end of the bottom plate (1) is fixedly installed with a hanging bracket (2). There is also a stamping and casting mechanism for stamping and casting compressor parts. The stamping and casting mechanism includes a hydraulic cylinder I (3) fixedly installed on the hanging bracket (2). The lower end of the hydraulic cylinder I (3) is fixedly installed with a lifting plate (4). The lower end of the lifting plate (4) is fixedly installed with a telescopic rod (5). The lower end of the telescopic rod (5) is fixedly installed with a connecting plate (6). A spring I (8) is sleeved on the outer side of the telescopic rod (5). The upper and lower ends of the spring I (8) are respectively fixedly connected with the lifting plate (4) and the connecting plate (6). The lower end of the connecting plate (6) is slidably installed with a stamping upper die (7). The left end of the connecting plate (6) is fixedly installed with a spring II (9). The left end of the spring II (9) is fixedly installed on the stamping upper die (7). A passive lower die (10) is arranged below the stamping upper die (7). The lower end of the passive lower die (10) is slidably installed on the bottom plate (1). The left end of the passive lower die (10) is fixedly installed with a spring III (11). The left end of the spring III (11) is fixedly installed on the bottom plate (1). There is also a synchronization mechanism for synchronously sliding the stamping upper die (7) and the passive lower die (10). The synchronization mechanism includes a synchronization plate (26) fixedly installed at the upper end of the stamping upper die (7). A guide rod (27) is slidably installed through the right side of the synchronization plate (26). The lower end of the guide rod (27) is fixedly installed on the passive lower die (10).

2. The stamping and casting die for a compressor part according to claim 1, characterized in that, A convex block plate I (12) is fixedly installed on the upper right side of the passive lower die (10). A passive pressing plate (13) is arranged above the convex block plate I (12). The right end of the passive pressing plate (13) is slidably installed on the hanging bracket (2). And the lower end of the passive pressing plate (13) is fixedly installed with a spring IV (14). The lower end of the spring IV (14) is fixedly installed on the bottom plate (1).

3. A stamping and casting die for compressor parts according to claim 1, characterized in that, Exhaust holes (15) are respectively opened on the front and rear sides of the stamping upper die (7). Sealing columns (16) are slidably installed through the exhaust holes (15). The upper ends of the sealing columns (16) are fixedly installed with hydraulic cylinders II (17). The hydraulic cylinders II (17) are fixedly installed on the stamping upper die (7).

4. A stamping and casting die for compressor parts according to claim 1, characterized in that, Closing rings (18) are slidably installed on the upper left and right sides of the passive lower die (10). Rack bars (19) are respectively fixedly installed on the front sides of the closing rings (18). A gear (20) is meshed between the rack bars (19). The gear (20) is rotatably installed on the passive lower die (10).

5. A stamping and casting die for a compressor part according to claim 4, characterized in that, A hydraulic cylinder III (21) is fixedly installed at the upper end of the left closing ring (18). The lower end of the hydraulic cylinder III (21) is fixedly installed on the passive lower die (10).

6. The stamping and casting die for a compressor part according to claim 1, characterized in that, Limit plates (22) are respectively fixedly installed on the upper left and right sides of the stamping upper die (7). Fixed plates (23) are respectively fixedly installed at the positions directly below the limit plates (22) at the upper end of the passive lower die (10).

7. A stamping and casting die for compressor parts according to claim 1, characterized in that, Hydraulic cylinders IV (25) are respectively fixedly installed on the upper left and right sides of the passive lower die (10). Oblique block plates (24) are respectively fixedly installed at the ends of the hydraulic cylinders IV (25) close to each other corresponding to the limit plates (22).

8. A stamping and casting die for compressor parts according to claim 1, characterized in that, A circle base (28) is rotatably installed at the lower end of the synchronization plate (26). At least four scraping knives (29) are fixedly installed at equal intervals at the lower end of the circle base (28). One ends of the scraping knives (29) close to each other are all abutted and attached to the surface of the guide rod (27).

9. A stamping and casting die for compressor parts according to claim 8, characterized in that, A fifth spring (30) is fixedly installed on the outer side of the circle base (28), and the other end of the fifth spring (30) is fixedly connected to the synchronization plate (26).

10. A stamping and casting die for compressor parts according to claim 8, characterized in that, A fixing rod (31) is fixedly installed at the right end of the circle base (28). A second convex plate (32) is arranged below the fixing rod (31), and the lower end of the second convex plate (32) is fixedly installed on the passive lower die (10).

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