Forward extrusion die structure of inner ball cage

Abstract

The invention belongs to the technical field of inner spherical cage forward extrusion dies, and particularly relates to an inner spherical cage forward extrusion die structure which comprises a base, a heating cylinder, guide sleeves, an annular frame, a thermosetting positioning mechanism and a bulletproof extrusion mechanism, the heating cylinder is arranged on the upper wall of the base, the upper end of the heating cylinder is open, and the guide sleeves are arranged on the inner wall of the heating cylinder in a penetrating mode; the annular frame is arranged on the side, away from the heating cylinder, of the guide sleeve, the thermosetting positioning mechanism is arranged on the heating cylinder, the bulletproof extrusion mechanism is arranged on the thermosetting positioning mechanism, and the thermosetting positioning mechanism comprises a limiting mechanism, a clamping mechanism, a heating mechanism and a cooling mechanism. According to the forward extrusion die structure for the inner ball cage, the shape and the size of the inner ball cage formed at high temperature after cooling and shaping can be guaranteed, and the demolding difficulty can be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of inner ball cage forward extrusion dies, and in particular relates to an inner ball cage forward extrusion die structure. Background Art

[0002] As a key component in the steering system of vehicles such as automobiles, the processing technology of the inner ball cage is crucial to the quality and performance of the product. Positive extrusion means that during the processing of the inner ball cage, the workpiece is extruded forward through a die to form the desired shape and size.

[0003] The existing inner ball cage positive extrusion die structure has the following problems: After the existing inner ball cage forward extrusion die structure performs warm forward extrusion on the pipe fitting, the formed inner ball cage will shrink when it is cooled and shaped after demolding, which will affect the shape and size of the formed inner ball cage. In addition, during the demolding process of the traditional inner ball cage forward extrusion die structure, the large friction between the mold and the inner wall of the formed inner ball cage will increase the difficulty of demolding. Therefore, it cannot meet the existing use requirements of the inner ball cage forward extrusion die structure. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an inner ball cage positive extrusion mold structure which can ensure the shape and size of the inner ball cage after cooling and shaping under high temperature molding, and can reduce the difficulty of demolding.

[0005] The technical scheme adopted by this scheme is as follows: an inner ball cage positive extrusion die structure proposed in this scheme includes a base, a heating cylinder, a guide sleeve, an annular frame, a thermosetting positioning mechanism and a bulletproof extrusion mechanism, the heating cylinder is arranged on the upper wall of the base, the heating cylinder is arranged with an upper opening, a plurality of groups of the guide sleeves are arranged through the inner wall of the heating cylinder, the annular frame is arranged on the side of the guide sleeve away from the heating cylinder, the thermosetting positioning mechanism is arranged on the heating cylinder, the bulletproof extrusion mechanism is arranged on the thermosetting positioning mechanism, the thermosetting positioning mechanism includes a limiting mechanism, a clamping mechanism, a heating The heating mechanism and the cooling mechanism, the limiting mechanism is arranged on the bottom wall of the heating tube, the clamping mechanism is arranged on the inner wall of the annular frame, the heating mechanism is arranged on the end of the guide sleeve close to the heating tube, the cooling mechanism is arranged on the side wall of the annular frame, the bullet-proof extrusion mechanism includes a corner mechanism, a lower drive mechanism, a diameter expansion mechanism and an inner support mechanism, the corner mechanism is arranged at the end of the cooling mechanism away from the annular frame, the lower drive mechanism is arranged at the end of the cooling mechanism close to the corner mechanism, the diameter expansion mechanism is arranged at the end of the lower drive mechanism away from the corner mechanism, and the inner support mechanism is arranged inside the diameter expansion mechanism.

[0006] As a further preferred embodiment of the present invention, the limit mechanism includes a limit recess, a limit rod and a limit plate, the limit recess is arranged on the bottom wall of the heating cylinder, the limit rod is arranged on the bottom wall of the limit recess, and the limit plate is arranged on the upper wall of the limit rod; the clamping mechanism includes a guide rod, a guide spring and a clamping rod, multiple groups of the guide rods pass through the guide sleeve and are arranged on the inner wall of the annular frame, the clamping rod passes through the guide sleeve and is arranged on the outside of the guide rod, the height of the clamping rod away from one end of the guide rod is lower than the limit plate, and the guide spring is arranged between the annular frame and the clamping rod; the heating mechanism includes a metal sleeve and a heating coil, the metal sleeve is arranged on the side of the guide sleeve away from the annular frame, and the heating coil is arranged on the side wall of the guide sleeve outside the metal sleeve; the cooling mechanism includes an L-shaped support frame, an air conditioner and a cold air pipe, the L-shaped support frame is arranged on the side wall of the base, the air conditioner is arranged on the side of the L-shaped support frame close to the annular frame, and the cold air pipe is connected and arranged between the cold air end of the air conditioner and the upper wall of the heating cylinder.

[0007] When in use, put the steel pipe into the heating cylinder. The steel pipe passes through the area between the clamping rods by using the deformation of the guide spring. The steel pipe is sleeved on the bottom wall of the limiting recess on the outside of the limiting rod. The steel pipe is clamped between the clamping rods. When the heating coil is energized, magnetic induction is generated between the heating coil and the metal sleeve. The temperature of the metal sleeve rises, and the metal sleeve heats the air inside the heating cylinder. The temperature of the steel pipe placed inside the heating cylinder rises, which facilitates the extrusion operation of the steel pipe.

[0008] Preferably, the corner mechanism includes a corner motor and a corner plate, the corner motor is arranged on the upper wall of the L-shaped support frame, the corner plate is rotatably arranged on the bottom wall of the L-shaped support frame, and the power end of the corner motor passes through the L-shaped support frame and is connected to the corner plate; the lower drive mechanism includes a hydraulic cylinder and a hydraulic cylinder, the hydraulic cylinder is arranged on the bottom wall of the corner plate, and the hydraulic cylinder is arranged inside the hydraulic cylinder; the diameter expansion mechanism includes a triangular plate, a retracted shaft, a ball cage mold and a retracted spring, the triangular plate is arranged below the hydraulic cylinder, a plurality of groups of the retracted shafts are arranged on the inner wall of the triangular plate, the ball cage mold is rotatably arranged on the outside of the retracted shaft, and the retracted spring is arranged between the ball cage mold on the outside of the retracted shaft and the triangular plate; the inner support mechanism includes an extension rod, A temperature-resistant convex magnetic block, an inner support block, a U-shaped slide, a push-down slider and a temperature-resistant adsorption magnetic block. The temperature-resistant convex magnetic block is arranged through the inner wall of the bottom of the triangular plate, the extension rod is arranged on the side of the hydraulic cylinder away from the hydraulic cylinder, the inner support block is arranged at one end of the extension rod close to the triangular plate, the temperature-resistant adsorption magnetic block is arranged on the outside of the extension rod below the inner support block, the temperature-resistant adsorption magnetic block is fitted with the temperature-resistant convex magnetic block, and the temperature-resistant adsorption magnetic block uses magnetic force to adsorb the temperature-resistant convex magnetic block, the U-shaped slide is arranged on the inner wall of the end of the ball cage mold away from the retraction shaft, the U-shaped slide is opened at both ends, the push-down slider is arranged at one end of the extension rod close to the U-shaped slide, and the push-down slider uses the reset elasticity of the retraction spring to slide inside the U-shaped slide.

[0009] When in use, the power end of the hydraulic cylinder shortens and drives the triangular plate to rise. The triangular plate drives the ball cage mold to rise through the magnetic field force between the temperature-resistant convex magnetic block and the temperature-resistant adsorption magnetic block. The ball cage mold moves away from the heating cylinder, and the pipe fitting is placed inside the heating cylinder. The power end of the hydraulic cylinder extends and drives the ball cage mold to descend. The ball cage mold enters through the opening of the pipe fitting. The diameter of the pipe fitting at the opening gradually increases under the positive extrusion of the ball cage mold. The ball cage mold is combined together to form the cavity shape of the inner ball cage. The triangular plate descends and fits against the upper wall of the limit plate. The power end of the hydraulic cylinder stops extending. The power end of the hydraulic cylinder shortens and drives the triangular plate to be pulled out from the inside of the pipe fitting. The triangular plate drives the ball cage mold away from the inside of the pipe fitting. The corner motor drives the corner plate to rotate through the power end. The corner plate drives the hydraulic cylinder to rotate through the hydraulic cylinder. The hydraulic cylinder drives the ball cage mold to rotate at an angle of one-sixth of a circle. The power end of the hydraulic cylinder extends again to drive the ball cage mold to enter the inside of the pipe fitting, and positive extrusion is performed on the unformed area at the opening of the pipe fitting.

[0010] Specifically, a controller and a temperature sensor are provided on the side wall of the heating cylinder, and a detection end of the temperature sensor is arranged through the interior of the heating cylinder.

[0011] Wherein, the controller is electrically connected to the heating coil, the air conditioner, the corner motor, the hydraulic cylinder and the temperature sensor respectively.

[0012] Preferably, the model of the temperature sensor is WD-PT1000.

[0013] The beneficial effects achieved by adopting the above structure are as follows: Compared with the prior art, the present invention adopts a combination of a regional forward extrusion structure and a cooling and shaping structure. Through the provision of a thermosetting positioning mechanism and a bulletproof extrusion mechanism, the inner ball cage after extrusion molding can be prevented from rebounding under the coordinated use of a limiting mechanism, a clamping mechanism, a heating mechanism, a cooling mechanism, a corner mechanism, a lower driving mechanism, a diameter expansion mechanism and an inner support mechanism. After the heated pipe is extruded, an air conditioner is used to deliver cold air to the inside of the heating cylinder to cool and shape the molded inner ball cage. Since the ball cage mold is located inside the inner ball cage, the cooled inner ball cage always maintains a size that is consistent with the outer diameter of the ball cage mold, and the inner ball cage After cooling, it fits tightly with the outer diameter of the ball cage mold under the action of thermal expansion and contraction. At this time, the power end of the hydraulic cylinder is shortened, and the hydraulic cylinder drives the extension rod to rise through the power end. The extension rod is separated from the temperature-resistant convex magnetic block, and the downward-pressing slider slides out of the U-shaped slide groove. The extension rod drives the inner support block to enter the area with a larger diameter inside the ball cage mold. The ball cage mold rotates along the retraction axis under the rebound and reset ability of the retraction spring. The end of the ball cage mold away from the retraction axis fits each other, and the ball cage mold is away from the inner wall of the pipe. The power end of the hydraulic cylinder can easily pull the ball cage mold out of the extruded inner ball cage to prevent scratches on the inner wall of the formed inner ball cage, thereby improving the molding efficiency of the inner ball cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of this scheme; Figure 2 This is the main stereogram of the scheme; Figure 3 This is a schematic diagram of the internal structure of this scheme; Figure 4 This is a schematic diagram of the structure of the internal support mechanism of this scheme; Figure 5 This is a schematic diagram of the structure of the diameter expansion mechanism of this scheme; Figure 6 This is a schematic diagram of the structure of the heating tube of this scheme; Figure 7 This is a schematic diagram of the structure of the clamping mechanism of this scheme; Figure 8 This is the main view of this scheme; Fig. 9 This is a side view of the scheme; Fig.10 This is a top view of the scheme; Fig.11 for Fig. 9 AA section view of the part; Fig.12 for Fig.10 A cross-sectional view of the BB portion; Fig.13 for Figure 5 A magnified structural view of Part I; Fig.14 for Fig.12 A magnified structural view of Part II; Fig.15 for Figure 6 A magnified structural view of Part III.

[0015] Among them, 1. base, 2. heating tube, 3. L-shaped support frame, 4. thermosetting positioning mechanism, 5. limiting mechanism, 6. limiting recess, 7. limiting rod, 8. limiting plate, 9. clamping mechanism, 10. guide sleeve, 11. ring frame, 12. guide rod, 13. guide spring, 14. clamping rod, 15. heating mechanism, 16. metal sleeve, 17. heating coil, 18. cooling mechanism, 19. air conditioner, 20. air conditioning pipe, 21. bulletproof extrusion mechanism , 22. Corner mechanism, 23. Corner motor, 24. Corner plate, 25. Down-drive mechanism, 26. Hydraulic cylinder, 27. Hydraulic cylinder, 28. Diameter expansion mechanism, 29. Triangle plate, 30. Retracted shaft, 31. Ball cage mold, 32. Retracted spring, 33. Internal support mechanism, 34. Extension rod, 35. Heat-resistant convex magnetic block, 36. Internal support block, 37. U-shaped slide, 38. Pressing slider, 39. Controller, 40. Temperature sensor, 41. Heat-resistant adsorption magnetic block.

[0016] The accompanying drawings are used to provide further understanding of the present scheme and constitute a part of the specification. Together with the embodiments of the present scheme, they are used to explain the present scheme and do not constitute a limitation on the present scheme. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the present scheme will be clearly and completely described below in conjunction with the drawings in the embodiments of the present scheme. Obviously, the described embodiments are only part of the embodiments of the present scheme, not all of the embodiments; based on the embodiments in the present scheme, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present scheme.

[0018] In the description of this scheme, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this scheme and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this scheme.

[0019] like Figure 1-Figure 15 As shown, the present invention proposes an inner ball cage positive extrusion die structure, comprising a base 1, a heating tube 2, a guide sleeve 10, an annular frame 11, a thermosetting positioning mechanism 4 and a bulletproof extrusion mechanism 21, wherein the heating tube 2 is arranged on the upper wall of the base 1, the heating tube 2 is arranged with an upper opening, a plurality of groups of the guide sleeves 10 are arranged through the inner wall of the heating tube 2, the annular frame 11 is arranged on the side of the guide sleeve 10 away from the heating tube 2, the thermosetting positioning mechanism 4 is arranged on the heating tube 2, the bulletproof extrusion mechanism 21 is arranged on the thermosetting positioning mechanism 4, the thermosetting positioning mechanism 4 comprises a limiting mechanism 5, a clamping mechanism 9, a heating mechanism 15 and a cooling mechanism 18, the limiting mechanism The positioning mechanism 5 is arranged on the bottom wall of the heating tube 2, the clamping mechanism 9 is arranged on the inner wall of the annular frame 11, the heating mechanism 15 is arranged at the end of the guide sleeve 10 close to the heating tube 2, the cooling mechanism 18 is arranged on the side wall of the annular frame 11, and the bullet-proof extrusion mechanism 21 includes a corner mechanism 22, a lower drive mechanism 25, a diameter expansion mechanism 28 and an inner support mechanism 33, the corner mechanism 22 is arranged at the end of the cooling mechanism 18 away from the annular frame 11, the lower drive mechanism 25 is arranged at the end of the cooling mechanism 18 close to the corner mechanism 22, the diameter expansion mechanism 28 is arranged at the end of the lower drive mechanism 25 away from the corner mechanism 22, and the inner support mechanism 33 is arranged inside the diameter expansion mechanism 28.

[0020] The limiting mechanism 5 includes a limiting recess 6, a limiting rod 7 and a limiting plate 8, wherein the limiting recess 6 is arranged on the bottom wall of the heating tube 2, the limiting rod 7 is arranged on the bottom wall of the limiting recess 6, and the limiting plate 8 is arranged on the upper wall of the limiting rod 7; the clamping mechanism 9 includes a guide rod 12, a guide spring 13 and a clamping rod 14, multiple groups of the guide rods 12 pass through the guide sleeve 10 and are arranged on the inner wall of the annular frame 11, the clamping rod 14 passes through the guide sleeve 10 and is arranged on the outer side of the guide rod 12, the height of the clamping rod 14 away from the end of the guide rod 12 is lower than the limiting plate 8, the guide spring 13 is arranged on the annular frame 11 and the clamping rod 14; the heating mechanism 15 includes a metal sleeve 16 and a heating coil 17, the metal sleeve 16 is arranged on the side of the guide sleeve 10 away from the annular frame 11, and the heating coil 17 is arranged on the side wall of the guide sleeve 10 outside the metal sleeve 16; the cooling mechanism 18 includes an L-shaped support frame 3, an air cooler 19 and a cold air pipe 20, the L-shaped support frame 3 is arranged on the side wall of the base 1, the air cooler 19 is arranged on the side of the L-shaped support frame 3 close to the annular frame 11, and the cold air pipe 20 is connected between the cold air end of the air cooler 19 and the upper wall of the heating tube 2.

[0021] The corner mechanism 22 includes a corner motor 23 and a corner plate 24, wherein the corner motor 23 is arranged on the upper wall of the L-shaped support frame 3, and the corner plate 24 is rotatably arranged on the bottom wall of the L-shaped support frame 3, and the power end of the corner motor 23 passes through the L-shaped support frame 3 and is connected to the corner plate 24; the lower drive mechanism 25 includes a hydraulic cylinder 26 and a hydraulic cylinder 27, wherein the hydraulic cylinder 26 is arranged on the bottom wall of the corner plate 24, and the hydraulic cylinder 27 is arranged inside the hydraulic cylinder 26; the diameter expansion mechanism 28 includes a triangular plate 29, a retracted shaft 30, a ball cage mold 31 and a retracted spring 32, wherein the triangular plate 29 is arranged below the hydraulic cylinder 27, and multiple groups of the retracted shafts 30 are arranged on the inner wall of the triangular plate 29, and the ball cage mold 31 is rotatably arranged on the outside of the retracted shaft 30, and the retracted spring 32 is arranged between the ball cage mold 31 on the outside of the retracted shaft 30 and the triangular plate 29; the inner support mechanism 33 includes an extension rod 34 , a temperature-resistant convex magnetic block 35, an inner support block 36, a U-shaped slide groove 37, a pressing slider 38 and a temperature-resistant adsorption magnetic block 41, wherein the temperature-resistant convex magnetic block 35 is penetrated through the inner wall of the bottom of the triangular plate 29, the extension rod 34 is arranged on the side of the hydraulic cylinder 27 away from the hydraulic cylinder 26, the inner support block 36 is arranged at one end of the extension rod 34 close to the triangular plate 29, the temperature-resistant adsorption magnetic block 41 is arranged on the outer side of the extension rod 34 below the inner support block 36, the temperature-resistant adsorption magnetic block 41 is fitted with the temperature-resistant convex magnetic block 35, and the temperature-resistant adsorption magnetic block 41 uses magnetic force to adsorb the temperature-resistant convex magnetic block 35, the U-shaped slide groove 37 is arranged on the inner wall of one end of the ball cage mold 31 away from the retracted shaft 30, the U-shaped slide groove 37 is opened at both ends, the pressing slider 38 is arranged at one end of the extension rod 34 close to the U-shaped slide groove 37, and the pressing slider 38 uses the reset elasticity of the retracted spring 32 to slide inside the U-shaped slide groove 37.

[0022] The side wall of the heating tube 2 is provided with a controller 39 and a temperature sensor 40 , and a detection end of the temperature sensor 40 is provided through the interior of the heating tube 2 .

[0023] The controller 39 is electrically connected to the heating coil 17 , the air conditioner 19 , the angle motor 23 , the hydraulic cylinder 27 and the temperature sensor 40 , respectively.

[0024] Preferably, the model of the temperature sensor 40 is WD-PT1000.

[0025] When in use, in the initial state, the power end of the hydraulic cylinder 27 is in a shortened state, the heat-resistant convex magnetic block 35 and the heat-resistant adsorption magnetic block 41 are fitted together, the downward pressing slider 38 is located between the hydraulic cylinders 27, and the inner support block 36 is fitted with the inner wall of the bottom of the ball cage mold 31. The power end of the hydraulic cylinder 27 is shortened to drive the triangular plate 29 to rise, and the triangular plate 29 drives the ball cage mold 31 to rise through the magnetic field force between the heat-resistant convex magnetic block 35 and the heat-resistant adsorption magnetic block 41. The ball cage mold 31 is away from the heating cylinder 2, and lubricating oil is applied to the surface and inner wall of the ball cage mold 31 in advance; The steel pipe to be extruded is placed inside the heating cylinder 2. The steel pipe penetrates the area between the clamping rods 14 by the deformation of the guide spring 13. The steel pipe is sleeved on the bottom wall of the limiting recess 6 outside the limiting rod 7. The steel pipe is clamped between the clamping rods 14. The controller 39 controls the heating coil 17 to start. The heating coil 17 is energized to generate magnetic induction between the metal sleeve 16. The temperature of the metal sleeve 16 rises. The metal sleeve 16 heats the air inside the heating cylinder 2. The temperature of the steel pipe placed inside the heating cylinder 2 rises, which is convenient for extruding the steel pipe. The controller 39 controls the temperature sensor 40 to start. The temperature sensor 40 monitors the heating temperature inside the heating cylinder 2 in real time through the detection end. After the pipe is clamped inside the heating cylinder 2, the controller 39 controls the hydraulic cylinder 27 to start, the power end of the hydraulic cylinder 27 extends to drive the ball cage mold 31 to descend, and the ball cage mold 31 enters the inside of the pipe through the opening of the pipe. Under the positive extrusion of the ball cage mold 31, the pipe diameter at the opening gradually increases. The ball cage mold 31 is combined into the cavity shape of the inner ball cage, the triangle plate 29 descends and fits the upper wall of the limit plate 8, and the controller 39 controls the power end of the hydraulic cylinder 27 to stop extending, completing the positive extrusion operation of the inner ball cage; The inner ball cage after forming is subjected to shaping operation. The inner ball cage formed at high temperature will gradually harden during the cooling process, thereby fixing its shape and size. The controller 39 controls the heating coil 17 to stop heating the metal sleeve 16. The controller 39 controls the air conditioner 19 to start. The cold air generated by the air conditioner 19 is transported to the inside of the heating cylinder 2 through the cold air pipe 20. After the temperature of the heating cylinder 2 is lowered, the formed inner ball cage is cooled. When the inner ball cage formed at high temperature is cooled, it will shrink. The inner wall of the inner ball cage is tightly fitted with the side wall of the ball cage mold 31. The friction between the inner ball cage and the ball cage mold 31 increases, which will increase the demoulding difficulty of the ball cage mold 31. The controller 39 controls the power end of the hydraulic cylinder 27 to shorten, and the power end of the hydraulic cylinder 27 drives the pressing slider 38 to slide out from between the U-shaped slide grooves 37 through the extension rod 34, and the extension rod 34 drives the temperature-resistant adsorption magnetic block 41 away from the temperature-resistant convex magnetic block 35, and the extension rod 34 drives the inner support block 36 to enter the space with a larger diameter inside the ball cage mold 31. At this time, the retraction spring 32 is deformed and reset, and the ball cage mold 31 rotates along the retraction axis 30. The end of the ball cage mold 31 away from the retraction axis 30 fits each other, and the ball cage mold 31 is away from the inner wall of the inner ball cage, so that the power end of the hydraulic cylinder 27 can easily pull the ball cage mold 31 out of the inner ball cage; The operator lifts up the triangle plate 29, and the triangle plate 29 drives the temperature-resistant convex magnetic block 35 to fit with the temperature-resistant adsorption magnetic block 41 again, and the downward pressing slider 38 uses the deformation of the retracted spring 32 to enter the U-shaped slide groove 37 again, and the controller 39 controls the corner motor 23 to start, and the corner motor 23 drives the corner plate 24 to rotate through the power end, and the corner plate 24 drives the hydraulic cylinder 27 to rotate through the hydraulic cylinder 26, and the hydraulic cylinder 27 drives the ball cage mold 31 to rotate by one-sixth of a circle, and the controller 39 controls the hydraulic cylinder 27 to start, and the power end of the hydraulic cylinder 27 extends again to drive the ball cage mold 31 to enter the interior of the pipe fitting, and performs a forward extrusion operation on the unformed area at the opening of the pipe fitting; the above operation can be repeated when it is used next time.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] The above is a description of the present solution and its implementation methods, which is not restrictive. The drawings show only one implementation method of the present solution, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creative design without departing from the creative purpose of the present solution, they should all fall within the protection scope of the present solution.

Claims

1. An inner ball cage positive extrusion die structure, comprising a base (1), a heating cylinder (2), a guide sleeve (10) and an annular frame (11), characterized in that: The invention also comprises a thermosetting positioning mechanism (4) and a bulletproof extrusion mechanism (21); the heating tube (2) is arranged on the upper wall of the base (1); the heating tube (2) is arranged with an upper end opening; a plurality of groups of guide sleeves (10) are arranged through the inner wall of the heating tube (2); the annular frame (11) is arranged on a side of the guide sleeve (10) away from the heating tube (2); the thermosetting positioning mechanism (4) is arranged on the heating tube (2); the bulletproof extrusion mechanism (21) is arranged on the thermosetting positioning mechanism (4); the thermosetting positioning mechanism (4) comprises a limiting mechanism (5), a clamping mechanism (9), a heating mechanism (15) and a cooling mechanism (18); the limiting mechanism (5) is arranged on the bottom wall of the heating tube (2); the clamping mechanism (9) The annular frame (11) is provided on the inner wall of the annular frame (11); the heating mechanism (15) is provided on one end of the guide sleeve (10) close to the heating cylinder (2); the cooling mechanism (18) is provided on the side wall of the annular frame (11); the bulletproof extrusion mechanism (21) comprises a corner mechanism (22), a lower drive mechanism (25), a diameter expansion mechanism (28) and an inner support mechanism (33); the corner mechanism (22) is provided on one end of the cooling mechanism (18) away from the annular frame (11); the lower drive mechanism (25) is provided on one end of the cooling mechanism (18) close to the corner mechanism (22); the diameter expansion mechanism (28) is provided on one end of the lower drive mechanism (25) away from the corner mechanism (22); and the inner support mechanism (33) is provided inside the diameter expansion mechanism (28).

2. The inner ball cage positive extrusion die structure according to claim 1, characterized in that: The limiting mechanism (5) comprises a limiting recess (6), a limiting rod (7) and a limiting plate (8); the limiting recess (6) is arranged on the bottom wall of the heating cylinder (2); the limiting rod (7) is arranged on the bottom wall of the limiting recess (6); and the limiting plate (8) is arranged on the upper wall of the limiting rod (7).

3. The inner ball cage positive extrusion die structure according to claim 2, characterized in that: The clamping mechanism (9) comprises a guide rod (12), a guide spring (13) and a clamping rod (14); a plurality of groups of the guide rods (12) penetrate the guide sleeve (10) and are arranged on the inner wall of the annular frame (11); the clamping rods (14) penetrate the guide sleeve (10) and are arranged on the outer side of the guide rods (12); the height of one end of the clamping rod (14) away from the guide rod (12) is lower than the limit plate (8); and the guide spring (13) is arranged between the annular frame (11) and the clamping rod (14).

4. The inner ball cage positive extrusion die structure according to claim 3, characterized in that: The heating mechanism (15) comprises a metal sleeve (16) and a heating coil (17); the metal sleeve (16) is arranged on a side of the guide sleeve (10) away from the annular frame (11); and the heating coil (17) is arranged on a side wall of the guide sleeve (10) outside the metal sleeve (16).

5. The inner ball cage positive extrusion die structure according to claim 4, characterized in that: The cooling mechanism (18) comprises an L-shaped support frame (3), an air cooler (19) and a cold air pipe (20); the L-shaped support frame (3) is arranged on a side wall of the base (1); the air cooler (19) is arranged on a side of the L-shaped support frame (3) close to the annular frame (11); and the cold air pipe (20) is arranged in communication between a cold air end of the air cooler (19) and an upper wall of the heating cylinder (2).

6. The inner ball cage positive extrusion die structure according to claim 5, characterized in that: The corner turning mechanism (22) comprises a corner turning motor (23) and a corner turning plate (24); the corner turning motor (23) is arranged on the upper wall of the L-shaped support frame (3); the corner turning plate (24) is rotatably arranged on the bottom wall of the L-shaped support frame (3); and the power end of the corner turning motor (23) passes through the L-shaped support frame (3) and is connected to the corner turning plate (24).

7. The inner ball cage positive extrusion die structure according to claim 6, characterized in that: The lower drive mechanism (25) comprises a hydraulic cylinder (26) and a hydraulic cylinder (27); the hydraulic cylinder (26) is arranged on the bottom wall of the turning plate (24); and the hydraulic cylinder (27) is arranged inside the hydraulic cylinder (26).

8. The inner ball cage positive extrusion die structure according to claim 7, characterized in that: The diameter expansion mechanism (28) comprises a triangular plate (29), an inward-retracting shaft (30), a ball cage mold (31) and an inward-retracting spring (32); the triangular plate (29) is arranged below the hydraulic cylinder (27); a plurality of groups of the inward-retracting shafts (30) are arranged on the inner wall of the triangular plate (29); the ball cage mold (31) is rotatably arranged outside the inward-retracting shaft (30); and the inward-retracting spring (32) is arranged between the ball cage mold (31) outside the inward-retracting shaft (30) and the triangular plate (29).

9. The inner ball cage positive extrusion die structure according to claim 8, characterized in that: The inner support mechanism (33) comprises an extension rod (34), a heat-resistant convex magnetic block (35), an inner support block (36), a U-shaped slide groove (37), a downward pressing slider (38) and a heat-resistant adsorption magnetic block (41); the heat-resistant convex magnetic block (35) is arranged through the inner wall of the bottom of the triangular plate (29); the extension rod (34) is arranged on a side of the hydraulic cylinder (27) away from the hydraulic cylinder (26); the inner support block (36) is arranged at one end of the extension rod (34) close to the triangular plate (29); and the heat-resistant adsorption magnetic block (41) is arranged below the inner support block (36). On the outside of the extension rod (34), the temperature-resistant adsorption magnetic block (41) is fitted with the temperature-resistant convex magnetic block (35), and the temperature-resistant adsorption magnetic block (41) uses magnetic force to adsorb the temperature-resistant convex magnetic block (35). The U-shaped slide groove (37) is arranged on the inner wall of one end of the ball cage mold (31) away from the retracted shaft (30), and the U-shaped slide groove (37) is opened at both ends. The pressing slider (38) is arranged at one end of the extension rod (34) close to the U-shaped slide groove (37), and the pressing slider (38) is slidable inside the U-shaped slide groove (37) by using the reset elasticity of the retracted spring (32).

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