Precision casting mold for bearing casting

Abstract

The utility model relates to the technical field of casting molds, and discloses a precision casting mold for bearing castings, which solves the problems of poor use safety and poor casting tightness of the conventional casting mold, and comprises a support frame, a casting lower mold is fixedly arranged at the bottom end in the support frame, and a casting cavity is formed in the top end of the casting lower mold. A first hydraulic rod is fixedly arranged in the middle of the top end in the supporting frame, a combined casting upper die is fixedly arranged at the bottom end of the first hydraulic rod, and the combined casting upper die is composed of an upper die plate, a die-casting liquid inlet pipe, a material receiving hopper, a second hydraulic rod, a pressure plunger spraying overflow pipe and an overflow anti-sputtering material receiving box. The jet overflow pipe is positioned in the overflow anti-sputtering material receiving box; through the casting mold, the casting quality and the safety in the casting process can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of casting mold technology, specifically a precision casting mold for bearing castings. Background Technology

[0002] In the bearing manufacturing process, for bearing caps that are not subjected to stress during operation, casting is usually used. However, conventional casting molds are difficult to ensure the tightness of the casting during use, and air bubbles are easily generated, affecting the casting quality. Moreover, existing casting molds are prone to splashing of the casting liquid during overflow, affecting the safety of workers. In the current casting industry, workers are often injured due to the splashing of overflow liquid. Therefore, this application proposes a precision casting mold for bearing castings to improve casting quality and safety. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a precision casting mold for bearing castings, which effectively solves the problems of poor safety and poor casting tightness of existing casting molds.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a precision casting mold for bearing castings, comprising a support frame, a lower casting mold fixedly disposed at the bottom of the support frame, a casting cavity opened at the top of the lower casting mold, a hydraulic rod one fixedly disposed at the middle position of the top of the support frame, and a combined upper casting mold fixedly disposed at the bottom of the hydraulic rod one. The combined upper casting mold consists of an upper template, a die-casting inlet pipe, a receiving hopper, a second hydraulic rod, a pressure plug, a jet overflow pipe, and an overflow anti-splash receiving box. The upper template is fixedly connected to the bottom of the first hydraulic rod, the die-casting inlet pipe is fixedly connected to one side of the top of the upper template, the receiving hopper is fixedly connected to the top of the side of the die-casting inlet pipe, the second hydraulic rod is fixedly connected to the top of the die-casting inlet pipe, the pressure plug is slidably connected to the inside of the die-casting inlet pipe and fixedly connected to the second hydraulic rod, and the jet overflow pipe and the overflow anti-splash receiving box are both fixedly connected to the top of the upper template away from the die-casting inlet pipe, with the jet overflow pipe located inside the overflow anti-splash receiving box.

[0005] Preferably, a number of positioning posts are fixedly provided on the side of the top of the casting lower mold, and the positioning posts slide through the upper mold plate.

[0006] Preferably, the top of the upper template is fixedly provided with an L-shaped reinforcing support arm that is connected to the die-casting inlet pipe, and the side of the top of the support frame is provided with a through hole that matches the hydraulic rod two.

[0007] Preferably, the top of the overflow anti-splash receiving box is hinged with a cover plate, a handle is fixedly provided on the side of the top of the cover plate, a buckle plate is hinged to the middle position of the front of the cover plate, and a positioning post matching the buckle plate is fixedly provided in the middle position of the front of the overflow anti-splash receiving box.

[0008] Preferably, a casting liquid slow-flow discharge pipe is fixedly provided at one end of the bottom of the overflow anti-splash receiving box, and the length of the casting liquid slow-flow discharge pipe is greater than the height of the upper template.

[0009] Preferably, a casting liquid recovery receiving box is provided on one side of the bottom of the support frame, and the casting liquid recovery receiving box is located directly below the casting liquid slow-flow discharge pipe.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] (1) In operation, by setting up a casting lower mold and a combined casting upper mold consisting of an upper mold plate, a die casting liquid inlet pipe, a receiving hopper, a hydraulic rod II, a pressure plug jet overflow pipe and an overflow anti-splash receiving box, pressure casting can be realized, the tightness of the casting liquid can be improved, gaps and bubbles can be avoided, and the quality of casting processing can be improved. At the same time, overflow liquid can be collected to avoid splashing of overflow liquid and affecting the safety of workers.

[0012] (2) By setting positioning columns, the lower mold and upper mold plate of casting can be limited, improving the accuracy of closure. By setting cover plates, buckle plates and positioning columns, the overflow liquid can be further prevented from splashing. By setting casting liquid slow flow discharge pipe and casting liquid recovery receiving box, the casting liquid inside the overflow anti-splash receiving box can be discharged, preventing the casting liquid from solidifying inside the overflow anti-splash receiving box and becoming difficult to clean. At the same time, the casting liquid can be recycled. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the precision casting mold structure for bearing castings according to this utility model;

[0016] Figure 2 This is a schematic diagram of the combined casting upper mold structure of this utility model;

[0017] Figure 3 This is a partial structural diagram of the combined casting upper mold of this utility model;

[0018] Figure 4This is a schematic diagram of the overflow anti-splash receiving box structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the casting lower mold structure of this utility model;

[0020] In the diagram: 1. Support frame; 2. Lower casting mold; 3. Casting cavity; 4. Hydraulic rod one; 5. Combined upper casting mold; 6. Upper template; 7. Die casting inlet pipe; 8. Receiving hopper; 9. Hydraulic rod two; 10. Pressure plug; 11. Spray overflow pipe; 12. Overflow anti-splash receiving box; 13. Positioning post; 14. L-shaped reinforced support arm; 15. Through hole; 16. Cover plate; 17. Handle; 18. Buckle plate; 19. Positioning post; 20. Casting liquid slow flow discharge pipe; 21. Casting liquid recovery receiving box. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Depend on Figures 1 to 5 This invention discloses a precision casting mold for bearing castings, comprising a support frame 1, a lower casting mold 2 fixedly mounted at the bottom of the support frame 1, a casting cavity 3 formed at the top of the lower casting mold 2, a hydraulic rod 4 fixedly mounted at the middle of the top of the support frame 1, and a combined upper casting mold 5 fixedly mounted at the bottom of the hydraulic rod 4. The combined upper casting mold 5 consists of an upper template 6, a die-casting inlet pipe 7, a receiving hopper 8, a second hydraulic rod 9, a pressure plunger 10, a jet overflow pipe 11, and an overflow anti-splash receiving box 12. 6 is fixedly connected to the bottom end of hydraulic rod 4; die casting inlet pipe 7 is fixedly connected to one side of the top of upper template 6; receiving hopper 8 is fixedly connected to the top of the side of die casting inlet pipe 7; hydraulic rod 9 is fixedly connected to the top of die casting inlet pipe 7; pressure plug 10 is slidably connected to the inside of die casting inlet pipe 7 and fixedly connected to hydraulic rod 9; spray overflow pipe 11 and overflow anti-splash receiving box 12 are both fixedly connected to the top of upper template 6 on the side away from die casting inlet pipe 7; spray overflow pipe 11 is located inside overflow anti-splash receiving box 12.

[0023] During the casting process, hydraulic rod 4 drives the combined casting upper mold 5 to press down, causing the upper mold plate 6 to close with the casting lower mold 2. The casting liquid is poured into the die casting inlet pipe 7 through the receiving hopper 8 and enters the casting cavity 3. When the casting cavity 3 is full of casting liquid, it overflows through the spray overflow pipe 11. At this time, there is still casting liquid inside the die casting inlet pipe 7. Hydraulic rod 9 drives the pressure plug 10 to press down, and the pressure plug 10 pressurizes the casting liquid, thereby improving the tightness of the casting liquid inside the casting cavity 3 and avoiding the formation of gaps and air bubbles. At this time, the casting liquid will be sprayed quickly through the spray overflow pipe 11. The overflow anti-splash receiving box 12 receives the casting liquid and prevents the casting liquid from spraying to the outside and affecting the safety of the workers.

[0024] Several positioning posts 13 are fixedly provided on the side of the top of the casting lower mold 2. The positioning posts 13 slide through the upper mold plate 6, which can position the upper mold plate 6, improve the accuracy of the closure between the upper mold plate 6 and the casting lower mold 2, and further improve the casting accuracy.

[0025] The top of the upper template 6 is fixedly provided with an L-shaped reinforcing support arm 14 that is connected to the die-casting inlet pipe 7, which can support and fix the die-casting inlet pipe 7. The side of the top of the support frame 1 is provided with a through hole 15 that matches the hydraulic rod 9, which can increase the activity space of the hydraulic rod 9.

[0026] The top of the overflow anti-splash receiving box 12 is hinged with a cover plate 16, and a handle 17 is fixedly provided on the side of the top of the cover plate 16. A buckle plate 18 is hinged to the middle of the front of the cover plate 16, and a positioning post 19 matching the buckle plate 18 is fixedly provided in the middle of the front of the overflow anti-splash receiving box 12.

[0027] The cover plate 16 further enhances safety, and the snap plate 18 and the positioning post 19 can limit and lock the cover plate 16.

[0028] A casting liquid slow-flow discharge pipe 20 is fixedly installed at one end of the bottom of the overflow anti-splash receiving box 12. The length of the casting liquid slow-flow discharge pipe 20 is greater than the height of the upper template 6. A casting liquid recovery receiving box 21 is installed on one side of the bottom of the support frame 1. The casting liquid recovery receiving box 21 is located directly below the casting liquid slow-flow discharge pipe 20.

[0029] The casting liquid collected inside the overflow anti-splash receiving box 12 is slowly discharged into the casting liquid recovery receiving box 21 through the casting liquid slow flow discharge pipe 20, so as to realize the recycling of casting liquid.

[0030] In operation, the system utilizes a combined casting upper mold consisting of a lower casting mold, a die-casting inlet pipe, a receiving hopper, a hydraulic rod, a pressure plug jet overflow pipe, and an overflow anti-splash receiving box. This configuration enables pressure casting, improves the tightness of the casting liquid, prevents gaps and bubbles, and thus enhances the quality of the casting process. It also allows for the collection of overflow liquid, preventing splashing that could endanger workers. Positioning posts limit the movement of the lower and upper casting molds, improving closure accuracy. Cover plates, snap plates, and positioning posts further prevent overflow splashing. A slow-flow discharge pipe and a casting liquid recovery receiving box allow for the removal of casting liquid from the overflow anti-splash receiving box, preventing solidification and cleaning difficulties, and enabling the recycling of the casting liquid.

Claims

1. A precision casting mold for bearing castings, comprising a support frame (1), characterized in that: The bottom of the support frame (1) is fixedly provided with a casting lower mold (2), and the top of the casting lower mold (2) is provided with a casting cavity (3). The middle position of the top of the support frame (1) is fixedly provided with a hydraulic rod (4), and the bottom of the hydraulic rod (4) is fixedly provided with a combined casting upper mold (5). The combined casting upper mold (5) is composed of an upper template (6), a die casting liquid inlet pipe (7), a receiving hopper (8), a hydraulic rod (9), a pressure plug (10), a jet overflow pipe (11), and an overflow anti-splash receiving box (12). The upper template (6) is fixedly connected to the hydraulic rod (4). At the bottom of the die casting inlet pipe (7), the die casting inlet pipe (7) is fixedly connected to one side of the top of the upper template (6), the receiving hopper (8) is fixedly connected to the top of the side of the die casting inlet pipe (7), the hydraulic rod two (9) is fixedly connected to the top of the die casting inlet pipe (7), the pressure plug (10) is slidably connected to the inside of the die casting inlet pipe (7) and fixedly connected to the hydraulic rod two (9), the spray overflow pipe (11) and the overflow anti-splash receiving box (12) are both fixedly connected to the top of the upper template (6) on the side away from the die casting inlet pipe (7), and the spray overflow pipe (11) is located inside the overflow anti-splash receiving box (12).

2. The precision casting mold for bearing castings according to claim 1, characterized in that: The lower casting mold (2) has several positioning posts (13) fixedly installed on the side of its top end, and the positioning posts (13) slide through the upper mold plate (6).

3. The precision casting mold for bearing castings according to claim 1, characterized in that: The top of the upper template (6) is fixedly provided with an L-shaped reinforcing support arm (14) connected to the die casting inlet pipe (7), and the side of the top of the support frame (1) is provided with a through hole (15) that matches the hydraulic rod (9).

4. The precision casting mold for bearing castings according to claim 1, characterized in that: The top of the overflow anti-splash receiving box (12) is hinged with a cover plate (16), and a handle (17) is fixedly provided on the side of the top of the cover plate (16). A buckle plate (18) is hinged to the middle position of the front of the cover plate (16), and a positioning post (19) matching the buckle plate (18) is fixedly provided at the middle position of the front of the overflow anti-splash receiving box (12).

5. A precision casting mold for bearing castings according to claim 4, characterized in that: One end of the bottom of the overflow anti-splash receiving box (12) is fixedly provided with a casting liquid slow flow discharge pipe (20), and the length of the casting liquid slow flow discharge pipe (20) is greater than the height of the upper template (6).

6. A precision casting mold for bearing castings according to claim 5, characterized in that: A casting liquid recovery receiving box (21) is provided on one side of the bottom of the support frame (1), and the casting liquid recovery receiving box (21) is located directly below the casting liquid slow flow discharge pipe (20).

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