CN219233544U

CN219233544U - Guide sleeve blank making die ejection device

Info

Publication number: CN219233544U
Application number: CN202320110603.1U
Authority: CN
Inventors: 苏昂; 侯潇峰; 许慧杰; 陈长征; 孙远航; 闫永杰; 游小刚
Original assignee: Zhengzhou Coal Machine Green Material Technology Co ltd
Current assignee: Zhengzhou Coal Machine Green Material Technology Co ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-06-23
Anticipated expiration: 2033-01-17

Abstract

The utility model provides a guide sleeve blank making die ejection device, which comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper die body, an upper die and an upper wedge block, an upper die groove is formed in the bottom of the upper die body, and the upper die is clamped in the upper die groove through the upper wedge block; the lower die assembly comprises a lower die body, a lower die and a lower wedge block, a lower die groove is formed in the top of the lower die body, and the lower die is clamped in the lower die groove through the lower wedge block; the upper die is characterized in that a cylindrical groove and an annular flattening cavity surrounding the cylindrical groove are formed in the center of the bottom of the upper die, a cylindrical bulge and a cylindrical cavity surrounding the cylindrical bulge are formed in the center of the lower die, the top of the cylindrical bulge is matched with the cylindrical groove, the outer diameter of the annular flattening cavity is larger than that of the cylindrical cavity, and a blank ejection mechanism is arranged at the bottom of the cylindrical cavity.

Description

Guide sleeve blank making die ejection device

Technical Field

The utility model relates to the field of guide sleeve forging, in particular to a guide sleeve blank making die ejection device.

Background

The guide sleeve is an important part on the upright post of the hydraulic cylinder and the hydraulic support, can play a role in supporting and guaranteeing coaxiality of the piston rod and the cylinder barrel, is in tight contact with the surface of the piston rod and flexible in action, and can bear transverse force, bending force, vibration and the like formed by external load on the piston rod. The guide sleeve is a step ring sleeve member, the precision forging process of the existing step ring sleeve member adopts bars as raw materials, and the finished product can be formed through a plurality of working procedures by heating, thickening, blank making, punching and ring rolling. The production mode has the defects of complicated production procedures, large equipment kinetic energy consumption, low production efficiency and high production cost.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, and provides the guide sleeve blank making die ejection device which is scientific in design, capable of reducing production procedures, improving production efficiency and high in practicability.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the guide sleeve blank making die ejection device comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper die body, an upper die and an upper wedge block, an upper die groove is formed in the bottom of the upper die body, and the upper die is clamped in the upper die groove through the upper wedge block; the lower die assembly comprises a lower die body, a lower die and a lower wedge block, a lower die groove is formed in the top of the lower die body, and the lower die is clamped in the lower die groove through the lower wedge block; the upper die is characterized in that a cylindrical groove and an annular flattening cavity surrounding the cylindrical groove are formed in the center of the bottom of the upper die, a cylindrical bulge and a cylindrical cavity surrounding the cylindrical bulge are formed in the center of the lower die, the top of the cylindrical bulge is matched with the cylindrical groove, the outer diameter of the annular flattening cavity is larger than that of the cylindrical cavity, and a blank ejection mechanism is arranged at the bottom of the cylindrical cavity.

Based on the above, blank ejection mechanism includes ejection pad, down ejection pad, many ejector pins and actuating lever, go up ejection pad and lay the tube-shape die cavity bottom, tube-shape die cavity diapire corresponds every the through-hole has been seted up respectively to the ejector pin, the both ends of ejector pin are connected respectively go up ejection pad with down ejection pad, down the die body corresponds down ejection pad has seted up the lift channel, the top of actuating lever is connected down ejection pad center, the actuating lever bottom stretches out the lift channel sets up.

Based on the above, the upper ejection pad is annular, and the lower ejection pad is cross-shaped.

Based on the above, the inlet of the cylindrical cavity is in a smooth flaring shape.

Compared with the prior art, the utility model has the substantial characteristics and progress, in particular, the utility model utilizes the cylindrical cavity in the lower die to directly extrude and shape the raw material of the pipe, utilizes the annular flattening cavity in the upper die to flatten the top end of the pipe, realizes the direct blank making of the pipe, ejects the made blank from the die through the blank ejection mechanism after the blank making is finished, and finally performs ring rolling and forming, thereby directly preparing the guide sleeve from the pipe.

Drawings

Fig. 1 is a schematic structural view of a guide sleeve blank mold ejection device in the present utility model.

Fig. 2 is a schematic view of the upper die assembly of the present utility model.

Fig. 3 is a schematic view of the structure of the present utility model for removing a blank mold from a lower mold assembly.

Fig. 4 is a top view of the upper ejector pad of the present utility model.

Fig. 5 is a top view of the lower ejector pad of the present utility model.

In the figure: 1. an upper die body; 2. an upper die; 3. an upper wedge; 4. a lower die body; 5. a lower die; 6. a lower wedge; 7. a cylindrical groove; 8. annular flattening die cavity; 9. a cylindrical protrusion; 10. a cylindrical cavity; 11. a guide sleeve blank; 12. an upper ejection pad; 13. a lower ejection pad; 14. a push rod; 15. a driving rod; 16. and lifting the channel.

Detailed Description

The technical scheme of the utility model is further described in detail through the following specific embodiments.

As shown in fig. 1-5, a guide sleeve blank making die ejection device comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper die body 1, an upper die 2 and an upper wedge block 3, an upper die groove is formed in the bottom of the upper die body 1, and the upper die 2 is clamped in the upper die groove through the upper wedge block 3; the lower die assembly comprises a lower die body 4, a lower die 5 and a lower wedge block 6, wherein a lower die groove is formed in the top of the lower die body 4, and the lower die 5 is clamped in the lower die groove through the lower wedge block 6.

The cylindrical groove 7 is formed in the center of the bottom of the upper die 2, the annular flattening cavity 8 surrounding the cylindrical groove 7 is formed in the center of the lower die 5, the cylindrical bulge 9 and the cylindrical cavity 10 surrounding the cylindrical bulge 9 are formed in the center of the lower die 5, the top of the cylindrical bulge 9 is matched with the cylindrical groove 7, the outer diameter of the annular flattening cavity 8 is larger than that of the cylindrical cavity 10, the entrance of the cylindrical cavity 10 is in a smooth flaring shape, so that the pressing resistance can be reduced, a blank ejection mechanism is arranged at the bottom of the cylindrical cavity 10, and the annular flattening cavity 8 and the cylindrical cavity 10 are matched with each other to press pipe fitting raw materials into guide sleeve blanks 11.

The blank ejection mechanism specifically comprises an upper ejection pad 12, a lower ejection pad 13, four ejector rods 14 and a driving rod 15, wherein the upper ejection pad 12 is annularly paved at the bottom of the cylindrical cavity 10, the bottom wall of the cylindrical cavity 10 corresponds to each ejector rod 14, through holes are respectively formed in the ejector rods 14, the lower ejection pad 13 is in a cross shape, two ends of each ejector rod 14 are respectively connected with the upper ejection pad 12 and the edges of the lower ejection pad 13, the lower die body 4 corresponds to the lower ejection pad 13 and is provided with a lifting channel 16, the top end of the driving rod 15 is connected with the center of the lower ejection pad 13, and the bottom end of the driving rod 15 extends out of the lifting channel 16.

Working principle:

the guide sleeve blank making die ejection device can directly prepare a guide sleeve blank 11 from a pipe fitting raw material, firstly, the pipe fitting is placed in a cylindrical cavity 10, the top end of the pipe fitting raw material is flattened by using an annular flattening cavity 8 at the bottom of an upper die 2, the guide sleeve blank 11 is obtained, after die opening, a driving rod 15 is pushed upwards, a lower ejection pad 13 drives an upper ejection pad 12 to rise through four ejector rods 14, the guide sleeve blank 11 is ejected from the cylindrical cavity 10, and finally, the guide sleeve blank is formed by ring rolling.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present utility model and are not limiting; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims

1. The utility model provides a uide bushing blank mould ejecting device which characterized in that: the upper die assembly comprises an upper die body, an upper die and an upper wedge block, wherein an upper die groove is formed in the bottom of the upper die body, and the upper die is clamped in the upper die groove through the upper wedge block; the lower die assembly comprises a lower die body, a lower die and a lower wedge block, a lower die groove is formed in the top of the lower die body, and the lower die is clamped in the lower die groove through the lower wedge block; the upper die is characterized in that a cylindrical groove and an annular flattening cavity surrounding the cylindrical groove are formed in the center of the bottom of the upper die, a cylindrical bulge and a cylindrical cavity surrounding the cylindrical bulge are formed in the center of the lower die, the top of the cylindrical bulge is matched with the cylindrical groove, the outer diameter of the annular flattening cavity is larger than that of the cylindrical cavity, and a blank ejection mechanism is arranged at the bottom of the cylindrical cavity.

2. The guide sleeve blank mold ejection device according to claim 1, wherein: the blank ejection mechanism comprises an upper ejection pad, a lower ejection pad, a plurality of ejector rods and a driving rod, wherein the upper ejection pad is paved at the bottom of the cylindrical cavity, through holes are respectively formed in the bottom wall of the cylindrical cavity corresponding to each ejector rod, the two ends of each ejector rod are respectively connected with the upper ejection pad and the lower ejection pad, the lower die body is corresponding to the lower ejection pad and provided with a lifting channel, the top end of the driving rod is connected with the center of the lower ejection pad, and the bottom end of the driving rod extends out of the lifting channel.

3. The guide sleeve blank mold ejection device according to claim 2, wherein: the upper ejection pad is annular, and the lower ejection pad is cross-shaped.

4. A guide sleeve blank mold ejection device according to any one of claims 1 to 3, wherein: the inlet of the cylindrical cavity is in a smooth flaring shape.