Steel ball forming die

Abstract

The utility model discloses a steel ball forming die, which belongs to the technical field of steel ball processing and comprises a workbench, die boxes are symmetrically arranged at the top of the workbench in a sliding manner, slide ways are arranged on the inner walls of the die boxes, and two groups of guide frames are arranged in the slide ways in a limited sliding manner; the feeding hole is formed in the steel ball forming die, the feeding pipe, the telescopic feeding nozzle, the die sealing plug, the die withdrawing plug and other assemblies are arranged over the feeding hole, when liquid is injected into the steel ball die, the telescopic feeding nozzle freely enters and exits the feeding hole, quantitative molten metal is injected, then the die sealing plug is aligned with the inner wall of the die to be sealed, and the steel ball forming die is formed. And the formed steel ball is pushed out through the demolding plug which is also aligned with the inner wall of the mold during demolding, so that efficient die-casting forming processing of the steel ball is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of steel ball processing, in particular to a steel ball forming die. Background Technique

[0002] Steel balls are common metal products and are widely used in various industrial fields, such as bearings, automobiles, aerospace, medical devices, etc. Steel balls can be manufactured through processes such as rolling, forging, and heat treatment.

[0003] Rolling is the most common manufacturing process. The steel balls manufactured by rolling have accurate shapes, consistent sizes, and high surface finish, and are suitable for fields with high requirements. The steel balls manufactured by the forging process have strong wear resistance and are suitable for fields that need to withstand high pressure and high strength. Heat treatment can improve the hardness and strength of steel balls, making them more durable. They can also be manufactured through the die-casting process. The die-casting process is a process of injecting molten metal into a mold for solidification and forming. Through the die-casting process, complex-shaped parts can be manufactured and widely used in fields such as automobiles, electronics, and aerospace.

[0004] When the existing steel balls are formed in a die-casting mold, a part of the metal casting liquid will remain at the liquid injection hole, resulting in large burrs on the surface of the cooled and formed steel balls, increasing the subsequent surface treatment work of the steel balls. Moreover, the remaining metal casting liquid will cool and solidify on the mold, affecting the subsequent liquid injection and demolding of the equipment. Therefore, there is an urgent need for a new steel ball forming die to solve this problem. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a steel ball forming die.

[0006] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0007] A steel ball forming die includes a workbench. Mold boxes are symmetrically slid on the top of the workbench. Slideways are opened on the inner walls of the mold boxes, and two groups of guide frames are limited and slide in the slideways;

[0008] A third hydraulic rod is arranged at the center of the guide frame, and a first steel ball mold and a second steel ball mold are slidably installed on the output end of the third hydraulic rod;

[0009] A connecting plate is fixed at the top between the mold boxes. Fourth hydraulic rods are symmetrically installed in the inner wall of the connecting plate. A first hydraulic rod vertically penetrates through the middle of the connecting plate, and a sealing die plug is detachably installed on the output end of the first hydraulic rod.

[0010] Preferably, a demolding plug is detachably installed on the output end of the third hydraulic rod, and both the mold sealing plug and the demolding plug are aligned and sealed against the inner walls of the first steel ball mold and the second steel ball mold.

[0011] Preferably, a feeding hole is also provided at the top of the first steel ball mold, and a telescopic feeding nozzle is arranged directly above the feeding hole. The top of the telescopic feeding nozzle is of a sleeve structure, and the top of the sleeve structure is connected to a feeding pipe.

[0012] Preferably, the top of the feeding pipe extends to the outside of the mold box. A clamping ring is fixed on the outer wall of the feeding pipe, and the outer wall of the clamping ring is fixedly connected to the output end of the fifth hydraulic rod. The fifth hydraulic rod is fixed on the top of the mold box.

[0013] Preferably, a top pressing plate is fixed on the outer wall of one group of the guide frames, and second hydraulic rods (8) are fixed on the outer walls of the top pressing plate and the outer walls of the other group of the guide frames. The second hydraulic rods are bolted to the inner wall of the mold box.

[0014] Preferably, the outer walls of the first steel ball mold and the second steel ball mold are semi-embedded and surrounded by a first heat exchange seat and a second heat exchange seat. The tops of the first heat exchange seat and the second heat exchange seat are connected to a liquid cooling circulation box through a telescopic pipe, and a heat dissipation fan is fixed on the top of the liquid cooling circulation box.

[0015] Preferably, a blanking hole is provided at the central part of the workbench.

[0016] The beneficial technical effects of the present utility model:

[0017] By providing a feeding hole on the steel ball forming mold, and components such as a feeding pipe, a telescopic feeding nozzle, a mold sealing plug, and a demolding plug are arranged directly above the feeding hole. When injecting liquid into the steel ball mold, the telescopic feeding nozzle freely enters and exits the feeding hole to inject a fixed amount of molten metal. Then, it is sealed by aligning the mold sealing plug with the inner wall of the mold to reduce liquid leakage during injection. When demolding, the formed steel ball is pushed out by the demolding plug that is also aligned with the inner wall of the mold, realizing the efficient die-casting forming process of the steel ball. Description of the Drawings

[0018] Figure 1 It is a front structural schematic diagram of a preferred embodiment of a steel ball forming mold according to the present utility model;

[0019] Figure 2 It is a top view after the mold box is opened in a preferred embodiment of a steel ball forming mold according to the present utility model;

[0020] Figure 3 It is a front cross-sectional view of the internal structure of the mold box in a preferred embodiment of a steel ball forming mold according to the present utility model;

[0021] Figure 4 It is a left sectional view of the internal structure of the mold box in a preferred embodiment of a steel ball forming mold according to the present utility model.

[0022] The description of the reference numerals in the drawings is as follows:

[0023] 1. Workbench; 2. Mold box; 3. Liquid cooling circulation box; 4. First heat exchange seat; 5. First hydraulic rod; 6. Sealing die plug; 7. First steel ball mold; 8. Second hydraulic rod; 9. Third hydraulic rod; 10. Tightening plate; 11. Second steel ball mold; 12. Second heat exchange seat; 13. Feeding hole; 14. Feed pipe; 15. Telescopic feed nozzle; 16. Guide frame; 17. Fourth hydraulic rod; 18. Feed hole; 19. Clamping ring; 20. Die withdrawal plug; 21. Fifth hydraulic rod. Detailed implementation manners

[0024] To make the technical solutions of the present utility model clearer and more definite for those skilled in the art, the present utility model will be further described in detail below in conjunction with the embodiments and the drawings. However, the implementation manners of the present utility model are not limited thereto.

[0025] As Figures 1-4 shown, a steel ball forming mold provided in this embodiment includes a workbench 1. Mold boxes 2 are symmetrically slid on the top of the workbench 1. Slideways are provided on the inner wall of the mold box 2, and two groups of guide frames 16 are limited and slide in the slideways. The guide frames 16 are used to guide the movement of the steel ball molds so that they can be closed and opened. A third hydraulic rod 9 is provided at the center of the guide frame 16, and a first steel ball mold 7 and a second steel ball mold 11 are slidably installed on the output end of the third hydraulic rod 9;

[0026] A connecting plate is fixed at the top between the mold boxes 2. Fourth hydraulic rods 17 are symmetrically installed in the inner wall of the connecting plate. A first hydraulic rod 5 vertically penetrates through the middle of the connecting plate. A sealing die plug 6 is detachably installed on the output end of the first hydraulic rod 5. The sealing die plug 6 is used to block the feed hole 18 so that the mold forms a complete closed cavity.

[0027] A die withdrawal plug 20 is detachably installed on the output end of the third hydraulic rod 9. Both the sealing die plug 6 and the die withdrawal plug 20 are aligned and sealed and attached to the inner walls of the first steel ball mold 7 and the second steel ball mold 11. The die withdrawal plug 20 can play a role in die withdrawal and at the same time play a role in sealing.

[0028] At the top of the first steel ball mold 7, a feeding hole 18 is also provided. Above the feeding hole 18, a telescopic feeding nozzle 15 is arranged. The top of the telescopic feeding nozzle 15 is of a sleeve structure, and the top of the sleeve structure is connected to a feeding pipe 14. When the first steel ball mold 7 moves, the outer wall of the telescopic feeding hole 18 can be extruded and freely telescoped, which is convenient for adjustment. After injecting the liquid and clamping into the feeding hole 18, the fifth hydraulic rod 21 at the top clamps the feeding pipe 14 made of metal material and pulls it out, without affecting the movement of the first steel ball mold.

[0029] The top of the feeding pipe 14 extends to the outside of the mold box 2. A clamping ring 19 is fixed on the outer wall of the feeding pipe 14. The outer wall of the clamping ring 19 is fixedly connected to the output end of the fifth hydraulic rod 21. The fifth hydraulic rod 21 is fixed on the top of the mold box 2.

[0030] On the outer wall of one set of guiding frames 16, a pressing plate 10 is fixed. Second hydraulic rods 88 are fixed on the outer wall of the pressing plate 10 and on the outer wall of the other set of guiding frames 16. The second hydraulic rods are bolted to the inner wall of the mold box 2.

[0031] The outer walls of the first steel ball mold 7 and the second steel ball mold 11 are semi-embedded and surrounded by a first heat exchange seat 4 and a second heat exchange seat 12. The tops of the first heat exchange seat 4 and the second heat exchange seat 12 are connected to a liquid cooling circulation tank 3 through a telescopic pipe. A cooling fan is fixed on the top of the liquid cooling circulation tank 3. The heat exchange seats can conduct heat for the molds, accelerating the cooling of the internal injected liquid and completing the shaping of the steel balls. After shaping, the steel balls can freely fall out after the mold is opened, or adhere to one set of molds. At this time, the ejection plug 20 is used to push out the steel balls.

[0032] A blanking hole 13 is provided at the central part of the workbench 1.

[0033] The working principle of this device:

[0034] The first step: Connect to the external power supply and external control device. The feeding pipe 14 is externally connected to a molten metal injection device and quantitatively injects molten metal liquid. When the first steel ball mold 7 is at the liquid injection position, the telescopic feeding pipe 14 is extruded and telescoped into the sleeve by the outer wall of the mold moving to the right, and then springs into the feeding hole 18 when encountering the feeding hole 18. The second hydraulic rod on the left pushes the guiding frame 16, the guiding frame 16, the first heat exchange seat 4, and the second steel ball mold 11 to move horizontally to the right and approach the first steel ball mold 7, and make the two groove-sealed and docked. At this time, a sealed mold cavity is formed inside the first and second steel ball molds. After filling with molten liquid, the fifth hydraulic rod 21, through the action of the clamping ring 19, pulls out the feeding pipe 14 with the telescopic feeding nozzle 15 from the feeding hole 18;

[0035] Step 2: The two groups of second hydraulic rods synchronously move the first and second steel ball molds to the right until the feeding hole 18 is directly below the mold sealing plug 6. The mold sealing plug 6 has the same size as the feeding hole 18, and the bottom structure is smoothly aligned with the inner wall of the first steel ball mold 7. Then, it is pushed into the first steel ball mold 7 by the first hydraulic rod 5 to complete the sealing of the internal molten liquid. The liquid cooling circulation tank 3 circulates the coolant into and out of the first heat exchange base 4 and the second heat exchange base 12 through a telescopic pipeline to cool the first and second steel ball molds, achieving the purpose of cooling and shaping the internal steel balls;

[0036] Step 3: After the shaping is completed, the mold sealing plug 6 is pushed out. The second hydraulic rods 88 on both sides pull the first and second steel ball molds to both sides, and the fourth hydraulic rod 17 pushes the mold box 2 to separate on both sides, so that the shaped steel balls are exposed. The third hydraulic rod 9 pushes the demolding plugs 20 in the inner walls of the first and second steel ball molds forward to push out the internal steel balls, which then fall out from the blanking hole 13 and enter the collection device.

[0037] The above is only a further 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 scope disclosed by the present invention, according to the technical solution and concept of the present invention, makes equivalent replacements or changes, all belong to the protection scope of the present invention.

Claims

1. A steel ball forming die, characterized in that: It includes a workbench, and mold boxes are symmetrically slid on the top of the workbench. Slideways are opened on the inner walls of the mold boxes, and two groups of guide frames are limitedly slid in the slideways; A third hydraulic rod is arranged at the center of the guide frame, and a first steel ball mold and a second steel ball mold are slidably installed on the output end of the third hydraulic rod; A connecting plate is fixed at the top between the mold boxes. Fourth hydraulic rods are symmetrically installed in the inner wall of the connecting plate. A first hydraulic rod vertically penetrates through the middle of the connecting plate, and a mold closing plug is detachably installed on the output end of the first hydraulic rod.

2. The steel ball forming die according to claim 1, wherein: A mold withdrawing plug is detachably installed on the output end of the third hydraulic rod. Both the mold closing plug and the mold withdrawing plug are aligned and hermetically fitted with the inner walls of the first steel ball mold and the second steel ball mold.

3. The steel ball forming die according to claim 2, characterized in that: A feeding hole is also opened at the top of the first steel ball mold. A telescopic feeding nozzle is arranged directly above the feeding hole. The top of the telescopic feeding nozzle is of a sleeve structure, and the top of the sleeve structure is communicated with a feeding pipe.

4. A steel ball forming die according to claim 3, characterized in that: The top of the feeding pipe extends to the outside of the mold box. A clamping ring is fixed on the outer wall of the feeding pipe, and the outer wall of the clamping ring is fixedly connected with the output end of a fifth hydraulic rod. The fifth hydraulic rod is fixed on the top of the mold box.

5. The steel ball forming die according to claim 4, characterized in that: A tightening plate is fixed on the outer wall of one group of the guide frames. Second hydraulic rods are fixed on the outer wall of the tightening plate and the outer wall of the other group of the guide frames. The second hydraulic rods are bolted to the inner wall of the mold box.

6. The steel ball forming die according to claim 5, characterized in that: The outer walls of the first steel ball mold and the second steel ball mold are semi-embedded and surrounded by a first heat exchange seat and a second heat exchange seat. The tops of the first heat exchange seat and the second heat exchange seat are connected to a liquid cooling circulation box through a telescopic pipe, and a cooling fan is fixed on the top of the liquid cooling circulation box.

7. A steel ball forming die according to claim 6, characterized in that: A blanking hole is opened at the central part of the workbench.

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