CN216729377U

CN216729377U - Extrusion die for retainer

Info

Publication number: CN216729377U
Application number: CN202123442074.5U
Authority: CN
Inventors: 戴华清
Original assignee: Xiangyang Yishi Precision Machinery Manufacturing Co ltd
Current assignee: Xiangyang Yishi Precision Machinery Manufacturing Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-14
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to the technical field of die machining, and discloses a retainer extrusion die which comprises an upper die and a lower die, wherein hollow cylinders are arranged at the centers of the upper die and the lower die, a base plate is fixedly connected to the bottom surface of the lower die, a hollow T-shaped cylinder is arranged at the center of the base plate, a lower ejector rod is slidably clamped in the hollow T-shaped cylinder, an ejector rod guide sleeve is arranged between the side surface of the upper end circumference of the lower ejector rod and the inner wall of the hollow cylinder of the lower die, 8 upper ejector rods are uniformly inserted on the circumference surface of the ejector rod guide sleeve at intervals, the bottom surface of the upper ejector rod is positioned on the upper end surface of the lower ejector rod, a toothed male die is arranged in the hollow cylinder of the upper die, 8 trapezoidal male dies are arranged at intervals at the lower end of the toothed male die, the upper end part of the upper ejector rod is inserted between two adjacent trapezoidal male dies, and a female die is arranged between the trapezoidal male die at the lower end of the toothed male die and the hollow cylinder of the upper die, and the utility model has the following advantages and effects: external force acts on the lower ejector rods, so that the 8 upper ejector rods act on the retainer to be processed in a balanced manner, the operation is simple, and the pressing effect is good.

Description

Extrusion die for retainer

Technical Field

The utility model relates to the technical field of die machining, in particular to a retainer extrusion die.

Background

Cage refers to a bearing component that partially encases all or part of the rolling elements and moves with them to isolate the rolling elements and generally also to guide and retain them within the bearing.

The conventional processing method of the parts adopts a pipe material to process on a milling machine, and the processing mode consumes more raw materials and has low processing efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a retainer extrusion die which has the effects of raw material saving, simplicity in operation and high machining efficiency.

The technical purpose of the utility model is realized by the following technical scheme: the die comprises an upper die and a lower die, wherein the upper die and the lower die are detachably connected, hollow cylinders are arranged at the centers of the upper die and the lower die, a base plate is fixedly connected to the bottom surface of the lower die, a hollow T-shaped cylinder is arranged at the center of the base plate, a lower ejector rod is slidably connected to the hollow T-shaped cylinder, the lower ejector rod is T-shaped, an ejector rod guide sleeve is arranged between the circumferential side surface of the upper end of the lower ejector rod and the inner wall of the hollow cylinder of the lower die, the cross section of the ejector rod guide sleeve is in a shape of a Chinese character 'men', 8 upper ejector rods are uniformly inserted and connected onto the circumferential surface of the ejector rod guide sleeve at intervals, the bottom surface of the upper ejector rod is positioned on the upper end surface of the lower ejector rod, the upper end part of the upper ejector rod is positioned in the hollow cylinder of the upper die, a tooth-shaped male die is arranged in the hollow cylinder of the upper die, 8 trapezoidal male dies are arranged at intervals on the circumferential edge of the lower end of the tooth-shaped male die, and the upper end part of the upper ejector rod is inserted and connected between two adjacent trapezoidal male dies, a concave die is arranged between the trapezoidal convex die at the lower end of the toothed convex die and the hollow cylinder of the upper die, the height of the concave die is the same as that of the upper die, the upper end of the toothed convex die is a solid cylinder, and a retainer to be processed can be sleeved on the circumferential side surface of the solid cylinder of the toothed convex die.

The utility model is further provided with: the female die is wide at the top and narrow at the bottom, and the lower end of the female die is in interference fit with the lower layer of the trapezoidal male die of the tooth-shaped male die.

The utility model is further provided with: the diameter of the lower end of the lower ejector rod is matched with the diameter of the lower end of the hollow T-shaped cylinder, and the lower end of the lower ejector rod penetrates through the hollow T-shaped cylinder and is partially located outside the hollow T-shaped cylinder.

The utility model is further provided with: the diameter of a cylinder at the middle lower end of the hollow T-shaped hollow cylinder is smaller than that of a cylinder at the upper end of the hollow T-shaped hollow cylinder, and the diameter of the cylinder at the middle upper end of the hollow T-shaped hollow cylinder is the same as that of the hollow cylinder.

The utility model is further provided with: the upper end face of the ejector rod guide sleeve is flush with the upper end face of the lower die, and the ejector rod guide sleeve is in interference fit with the hollow cylinder of the lower die.

The utility model is further provided with: the die is characterized in that an upper thread through hole and a lower thread through hole are respectively formed in the circumferential surfaces of the upper die and the lower die, the number of the upper thread through holes and the number of the lower thread through holes are 2, and the upper thread through holes and the lower thread through holes are detachably connected through bolts.

The utility model is further provided with: go up the mould bottom and be provided with the rand downwards, the rand joint is in the lower mould upper surface.

The utility model has the beneficial effects that:

1. the retainer to be processed is sleeved in the circumference of a solid cylinder of a toothed male die, the retainer to be processed is positioned in a hollow cylinder of an upper die at the moment, the upper die and a lower die are fixed by using bolts, the whole die is turned, a lower ejector rod faces upwards, meanwhile, the upper end face of the upper die is placed on a table top in a fit mode, then, an external pressure device is started, the lower ejector rod is pushed to press downwards, the circumference of the lower ejector rod exerts acting force on 8 upper ejector rods at the moment, a guide rod sleeve is limited to the upper ejector rods, the direction of the action of the upper ejector rods can be aimed, the cold pressing effect is improved, the quality of finished retainers is ensured, after each upper ejector rod presses downwards between two adjacent trapezoidal male dies, pressure is exerted on the retainer to be processed, and the retainer to be processed is uniformly pressed into a plurality of concave shapes.

2. The thickness of the female die is wide at the top and narrow at the bottom, and the lower end of the female die is in interference fit with the lower layer of the trapezoidal male die of the toothed male die, so that the stability of the toothed female die can be improved, and the quality of a finished product is improved.

3. Waste materials are not generated in the whole pressing process, raw materials are saved, the pressing yield is high, and the cost is further reduced.

4. Go up the mould and the connection mode dismantled of lower mould, if inside spare part harms, conveniently change spare part, promote the holistic life of mould.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a cross-sectional view of the present invention.

Fig. 2 is a front view of the tooth punch of the present invention.

In the figure, 1, an upper die; 2. a lower die; 3. a base plate; 4. a lower ejector rod; 5. a mandril guide sleeve; 6. an ejector rod is arranged; 7. a toothed male die; 8. a trapezoidal male die; 9. a female die; 10. an upper threaded through hole; 11. and a lower threaded through hole.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

An embodiment, a holder extrusion die, as shown in fig. 1-2, including last mould 1 and lower mould 2, it has the rand to go up mould 1 bottom downwards, the rand joint is in lower mould 2 upper surface, be provided with screw thread through-hole 10 and lower screw thread through-hole 11 on the periphery of last mould 1 and lower mould 2 respectively, it is 2 to go up screw thread through-hole 10 and lower screw thread through-hole 11 quantity, two screw promote the stability in the use of mould, go up screw thread through-hole 10 and can dismantle the connection through the bolt between the screw thread through-hole 11, go up mould 1 and lower mould 2's the connection mode of dismantling, if inside spare part has the damage, conveniently change the spare part, promote the holistic life of mould.

As shown in fig. 1-2, the centers of the upper die 1 and the lower die 2 are both provided with hollow cylinders, the bottom surface of the lower die 2 is fixedly connected with a base plate 3, the center of the base plate 3 is provided with a hollow T-shaped cylinder, the diameter of the lower end cylinder in the hollow T-shaped cylinder is smaller than that of the upper end cylinder, the diameter of the upper end cylinder in the hollow T-shaped cylinder is the same as that of the hollow cylinder, a lower ejector rod 4 is slidably connected in the hollow T-shaped cylinder, the lower ejector rod 4 is of a T shape, and an ejector rod guide sleeve 5 is arranged between the circumferential side surface of the upper end of the lower ejector rod 4 and the inner wall of the hollow cylinder of the lower die 2.

As shown in fig. 1-2, the upper end surface of the ejector rod guide sleeve 5 is flush with the upper end surface of the lower die 2, the ejector rod guide sleeve 5 is in interference fit with the hollow cylinder of the lower die 2, the cross section of the ejector rod guide sleeve 5 is in a shape like a Chinese character 'men', 8 upper ejector rods 6 are uniformly inserted on the circumferential surface of the ejector rod guide sleeve 5 at intervals, the bottom surfaces of the upper ejector rods 6 are positioned on the upper end surface of the lower ejector rod 4, and the upper end parts of the upper ejector rods 6 are positioned in the hollow cylinder of the upper die 1.

As shown in fig. 1-2, a tooth-shaped male die 7 is arranged in a hollow cylinder of an upper die 1, 8 trapezoidal male dies 8 are arranged at intervals on the circumference of the cylinder at the lower end of the tooth-shaped male die 7, the upper end part of an upper ejector rod 6 is inserted between two adjacent trapezoidal male dies 8, a female die 9 is arranged between the trapezoidal male die 8 at the lower end of the tooth-shaped male die 7 and the hollow cylinder of the upper die 1, the thickness of the female die 9 is wide at the upper part and narrow at the lower part, the lower end of the female die 9 is in interference fit with the lower layer of the trapezoidal male die 8 of the tooth-shaped male die 7, the stability of the tooth-shaped female die 9 can be improved, the quality of a finished product is improved, the height of the female die 9 is the same as that of the upper die 1, the upper end of the tooth-shaped male die 7 is a solid cylinder, a retainer to be processed can be sleeved on the circumferential side of the solid cylinder of the tooth-shaped male die 7, the retainer is pressed in a practical cold pressing mode, not only the operation is simple, but also no waste material is produced in the pressing process, the raw material is saved, and the pressing yield is high, further reducing the cost.

The working principle of the extrusion die for the retainer is as follows:

respectively installing all parts in an upper die 1 and a lower die 2, then sleeving a retainer to be processed outside the circumference of a solid cylinder of a toothed male die 7, positioning the retainer to be processed in a hollow cylinder of the upper die 1, aligning, screwing and fixing the upper die 1 and the lower die 2 by using bolts, turning over the whole die to enable a lower ejector rod 4 to face upwards, and simultaneously, enabling the upper end surface of the upper die 1 to be attached and placed on a table surface, then start outside pressure device, promote down ejector pin 4 and push down, the circumference of lower ejector pin 4 exerts the effort to 8 last ejector pins 6 this moment, and the guide bar sleeve is spacing to last ejector pin 6, can aim at the direction of the effect of last ejector pin 6, improves the cold pressing effect, ensures the quality of finished product holder, and every goes up ejector pin 6 and pushes down the back between two adjacent trapezoidal terrace dies 8, treats to process the holder and applys pressure, treats that the processing holder is by a plurality of concave types of uniform pressing.

And after the pressing is finished, the whole die is turned over, the upper die 1 and the lower die 2 are disassembled, and the pressed retainer is taken out.

Claims

1. The extrusion die for the retainer is characterized in that: the die comprises an upper die (1) and a lower die (2), wherein the upper die (1) is detachably connected with the lower die (2), hollow cylinders are arranged at the centers of the upper die (1) and the lower die (2), a base plate (3) is fixedly connected to the bottom surface of the lower die (2), a hollow T-shaped cylinder is arranged at the center of the base plate (3), a lower ejector rod (4) is slidably connected in the hollow T-shaped cylinder, the lower ejector rod (4) is T-shaped, an ejector rod guide sleeve (5) is arranged between the side surface of the circumference at the upper end of the lower ejector rod (4) and the inner wall of the hollow cylinder of the lower die (2), the cross section of the ejector rod guide sleeve (5) is in a door shape, 8 upper ejector rods (6) are uniformly inserted and connected on the circumference surface of the ejector rod guide sleeve (5) at intervals, the bottom surface of the upper ejector rod (6) is positioned at the upper end surface of the lower ejector rod (4), and the upper end part of the upper ejector rod (6) is positioned in the hollow cylinder of the upper die (1), the special tool is characterized in that a tooth-shaped male die (7) is arranged in a hollow cylinder of the upper die (1), 8 trapezoidal male dies (8) are arranged on the circumference of a cylinder at the lower end of the tooth-shaped male die (7) at intervals, the upper end of the upper ejector rod (6) is inserted between two adjacent trapezoidal male dies (8), a female die (9) is arranged between the trapezoidal male die (8) at the lower end of the tooth-shaped male die (7) and the hollow cylinder of the upper die (1), the female die (9) and the upper die (1) are identical in height, the upper end of the tooth-shaped male die (7) is a solid cylinder, and a retainer to be processed can be sleeved on the circumferential side surface of the solid cylinder of the tooth-shaped male die (7).

2. The cage extrusion die of claim 1, wherein: the thickness of the female die (9) is wide at the top and narrow at the bottom, and the lower end of the female die (9) is in interference fit with the lower layer of the trapezoidal male die (8) of the tooth-shaped male die (7).

3. The cage extrusion die of claim 2, wherein: the diameter of the lower end of the lower ejector rod (4) is matched with the diameter of the lower end of the hollow T-shaped cylinder, and the lower end of the lower ejector rod (4) penetrates through the hollow T-shaped cylinder and is partially located outside the hollow T-shaped cylinder.

4. The cage extrusion die of claim 1, wherein: the diameter of a cylinder at the middle lower end of the hollow T-shaped hollow cylinder is smaller than that of a cylinder at the upper end of the hollow T-shaped hollow cylinder, and the diameter of the cylinder at the middle upper end of the hollow T-shaped hollow cylinder is the same as that of the hollow cylinder.

5. The cage extrusion die of claim 1, wherein: the upper end face of the ejector rod guide sleeve (5) is flush with the upper end face of the lower die (2), and the ejector rod guide sleeve (5) is in interference fit with the hollow cylinder of the lower die (2).

6. The cage extrusion die of claim 1, wherein: go up and be provided with screw thread through-hole (10) and lower screw thread through-hole (11) on the periphery of mould (1) and lower mould (2) respectively, it is 2 with lower screw thread through-hole (11) quantity to go up screw thread through-hole (10), go up and can dismantle the connection through the bolt between screw thread through-hole (10) and lower screw thread through-hole (11).

7. The cage extrusion die of claim 1, wherein: go up mould (1) bottom and be provided with the rand downwards, the rand joint is in lower mould (2) upper surface.