CN216262750U

CN216262750U - Thin die extruding seat of press

Info

Publication number: CN216262750U
Application number: CN202121472141.5U
Authority: CN
Inventors: 刘勇; 严昉; 吴旭; 刘德军; 郑友; 徐畅
Original assignee: China Aviation Industry Standard Parts Manufacturing Co Ltd
Current assignee: China Aviation Industry Standard Parts Manufacturing Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-04-12
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a thin extrusion die holder of a press, wherein a die handle (1) is arranged in a central hole of an upper die plate (2), and a thin extrusion male die (4) is arranged in a hole at the lower end of the die handle (1); the lower end of the die cavity (15) is locked with the lower die plate (13), the ejector rod (12) is placed in a central hole of the lower die plate, the guide sleeve (16) is sleeved on the ejector rod (6), the guide sleeve (16) is placed in the die cavity (15), the fine extrusion die (17) and the guide sleeve (18) are sequentially sleeved on the ejector rod (6), and the lower gland (19) compresses the guide sleeve (18) to be locked with the upper end of the die cavity (15); the two pull rods (14) pass through pull rod through holes of the lower template (13), the upper ends of the pull rods are arranged on the upper template (2), the lower ends of the pull rods are arranged on the discharging beam (10), and the discharging block (11) is arranged on the discharging beam (10). The utility model can improve the upsetting-forging ratio of the blank, improve the processing efficiency and the product quality of the precision upsetting part and save the upsetting raw material.

Description

Thin die extruding seat of press

Technical Field

The utility model belongs to the technical field of die holder parts, and particularly relates to a thin die holder extruded by a press.

Background

For a long time, when a bolt head with a large upsetting ratio is formed by hot upsetting of a special material and special requirements, a rough upsetting process is usually required to be added or a blank with a large outer diameter is selected to be added with a half-turning process to reduce the upsetting ratio, but the forming size during fine upsetting is unstable due to uneven material feeding during rough upsetting, and the risk of overheating and overburning of parts due to heating during fine upsetting is increased and the product quality is affected because the head is waist-drum-shaped after the rough upsetting; secondly, a large-outer-diameter blank skip car is selected to be serious in material waste, and a head streamline is processed without chips.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and provide the thin die holder for the press, which can improve the upsetting-forging ratio of a blank, improve the processing efficiency and the product quality of a precision upsetting part and save upsetting raw materials.

The technical scheme adopted by the utility model is as follows:

the utility model relates to a thin die holder for extrusion of a press, which comprises a die handle, an upper die plate, two pull rods (14), a lower die plate, a die cavity, a lower gland, an ejector rod, a discharging block and a discharging beam, wherein: the die handle is arranged in a central hole of the upper die plate, and the extruding male die is arranged in a hole at the lower end of the die handle and is fixedly locked by two male die locking bolts;

four threaded holes evenly distributed at the lower end of the die cavity and four holes evenly distributed on the lower die plate are locked through die cavity locking bolts, the ejector rod is placed into a center hole of the lower die plate, the small end of the ejector rod faces downwards, the guide sleeve is sleeved on the ejector rod, the small end of the ejector rod faces upwards, the guide sleeve is sleeved in the die cavity, the extruding fine die is sleeved on the guide sleeve on the ejector rod, the guide sleeve is sleeved on the extruding fine die on the ejector rod, the lower pressing cover tightly presses the guide sleeve, and the four holes evenly distributed on the lower pressing cover and the four holes evenly distributed at the upper end of the die cavity are locked through the lower pressing cover locking bolts.

The upper end and the lower end of each pull rod are threads, the two pull rods are installed in holes in the transverse central line of the upper template through the upper ends of pull rod through holes of the lower template and are locked through locking nuts on the pull rods, the discharging block is installed on the discharging cross beam and is locked through locking nuts of the discharging block, and the lower ends of the two pull rods are installed on the discharging cross beam and are locked through locking nuts under the pull rods.

The above-mentioned press extrudes the thin die holder, wherein: the die shank is in clearance fit with the upper die plate.

The above-mentioned press extrudes the thin die holder, wherein: the die handle is in clearance fit with the extruding male die.

The above-mentioned press extrudes the thin die holder, wherein: the die cavity is in clearance fit with the extruding die, the guide sleeve and the guide sleeve.

The above-mentioned press extrudes the thin die holder, wherein: the upper end and the lower end of each pull rod are threads, and the threads at the lower end are longer than those at the upper end.

Compared with the prior art, the utility model has obvious beneficial effects, and the technology shows that: the die holder is arranged on a common press machine for use, then the large-size hot upsetting blank is partially extruded through the extruding and thinning die, the non-extruded part is used for hot upsetting forming of the head of the part, and the traditional mode of improving the upsetting and forging ratio of the hot upsetting blank by using a rough upsetting and a half cutting is replaced, so that the effects of improving the upsetting and forging ratio of the blank, improving the machining efficiency, saving the upsetting raw material and improving the product quality of the high-precision upsetting part are achieved. The utility model solves the problem that the dimension of the precision upset part is out of tolerance because the material is not uniformly discharged when the upset-forging ratio is improved by using the rough upset for upsetting the part with the large upset-forging ratio; the overheating and high-burning risk during the upsetting and forging ratio improvement by using the rough upsetting for upsetting the part with the large upsetting and forging ratio is effectively avoided; the problem of material waste when the upsetting ratio is improved by using a half-section for upsetting parts with large upsetting ratio is solved; the problem of machining efficiency during upsetting is solved by turning a half of a part with a large upsetting ratio, and the efficiency is improved by nearly 10 times; compared with the traditional method of improving the upsetting-forging ratio by rough upsetting and turning a half section, the method obviously improves the quality of the fine upsetting product.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a schematic view of the structure of the extruding die of the present invention;

FIG. 4 is a schematic view of the construction of the male die of the present invention;

FIG. 5 is a schematic view of the structure of the boot of the present invention;

FIG. 6 is a schematic view of a material guiding sleeve according to the present invention;

FIG. 7 is a schematic view of an extruded detail part of the present invention prior to extrusion;

FIG. 8 is a schematic view of the details of the present invention after extrusion.

The labels in the figure are:

1. the device comprises a die handle, 2 parts of an upper die plate, 3 parts of a male die locking bolt, 4 parts of a fine extrusion male die, 5 parts of a lower press cover locking bolt, 6 parts of an ejection rod, 7 parts of a die cavity locking bolt, 8 parts of an unloading block locking nut, 9 parts of a pull rod lower locking nut, 10 parts of an unloading beam, 11 parts of an unloading block, 12 parts of an ejector rod, 13 parts of a lower die plate, 14 parts of a pull rod, 15 parts of a die cavity, 16 parts of a guide sleeve, 17 parts of a fine extrusion die, 18 parts of a guide sleeve, 19 parts of a lower press cover, 20 parts of a fine extrusion part and 21 parts of a pull rod upper locking nut.

Detailed Description

The following detailed description of embodiments, structures, features and effects of the die set of the press according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1 to 6, the fine die holder for extrusion of a press of the present invention includes a die handle 1, an upper die plate 2, two pull rods 14, a lower die plate 13, a die cavity 15, a lower press cover 19, an ejector rod 6, an ejector rod 12, a discharging block 11, and a discharging beam 10, wherein: the die shank 1 is arranged in a central hole of the upper die plate 2, the two are in clearance fit (the clearance amount is 0.02-0.05), the two pull rods 14 are symmetrically arranged in holes on the transverse central line of the upper die plate 2 and are locked by locking nuts 21 on the pull rods, a thin extrusion male die mounting hole is arranged at the lower end of the die shank 1 and is in clearance fit (the clearance amount is 0.02-0.05) with a thin extrusion male die 4, and the thin extrusion male die 4 is arranged in a hole at the lower end of the die shank 1 and is fixedly locked by two male die locking bolts 3;

four threaded holes evenly distributed at the lower end of a die cavity 15 and four holes evenly distributed on a lower template 13 are locked through die cavity locking bolts 7, an ejector rod 12 is placed in a central hole of the lower template, the small end of the ejector rod faces downwards, a guide sleeve 16 is sleeved on an ejector rod 6, the small end of the ejector rod faces upwards, the guide sleeve 16 is placed in the die cavity 15, a fine extrusion die 17 is sleeved on the guide sleeve 16 on the ejector rod 6, a guide sleeve 18 is sleeved on the fine extrusion die 17 on the ejector rod 6, a lower pressing cover 19 tightly presses the guide sleeve 18, four holes evenly distributed on the lower pressing cover 19 and four holes evenly distributed at the upper end of the die cavity 15 are locked through a lower pressing cover locking bolt 5, the die cavity 15 is in clearance fit with the fine extrusion die 17, the guide sleeve 18 and the guide sleeve 16, and the clearance amount is 0.01-0.03.

The upper end and the lower end of each of the two pull rods 14 are threads, the lower end threads are 50-60mm longer than the upper end threads, and the two pull rods 14 are used for adjusting the up-and-down floating positions of the discharging beam 10, during assembly, the two pull rods 14 are arranged in holes in the transverse center line of the upper template through the upper ends of pull rod through holes of the lower template 13 and are locked through locking nuts 21 on the pull rods, then a discharging block 11 is arranged on the discharging beam 10 and is locked through locking nuts 8 of the discharging block, the lower ends of the two pull rods 14 are arranged on the discharging beam 10 provided with the discharging block 11, and the discharging beam 10 is adjusted to a proper position and is locked through locking nuts 9 under the pull rods.

The working principle is as follows: when the press machine works, a part 20 to be extruded is placed in the material guide sleeve 18 (see fig. 7), the press machine pushes the male die 4 and the two symmetrical pull rods 14 downwards, the male die 4 contacts the part 20 to be extruded, the lower end of the chamfer of the part 20 to be extruded is pushed to downwards pass through the thin extrusion die 17, the part 20 to be extruded through the thin extrusion die 17 is extruded to be thin and long, and the press machine is lowered to a bottom dead center to finish the thin extrusion. Then, the unloading starts, the press machine moves upwards to drive the unloading beam 10 and the unloading block 11 to move upwards through the two symmetrical pull rods 14, after the unloading block 11 impacts the ejector rod 12, the ejector rod 12 pushes the unloading rod 6, the unloading rod 6 pushes the thin extrusion part 20 (see fig. 8), when the press machine moves upwards to the top dead center, the thin extrusion part 20 is completely withdrawn, the unloading is completed, and a thin extrusion cycle is completed.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the present invention without departing from the technical spirit of the present invention.

Claims

1. The utility model provides an crowded thin die holder of press, includes die shank (1), cope match-plate pattern (2), two pull rods (14), lower bolster (13), die cavity (15), lower gland (19), ejector pin (6), ejector pin (12), the piece of unloading (11) and crossbeam (10) of unloading, its characterized in that: the die handle (1) is arranged in a central hole of the upper die plate (2), and the extruding male die (4) is arranged in a hole at the lower end of the die handle (1) and is fixedly locked through a male die locking bolt (3); the lower end of a die cavity (15) is locked with a lower template (13) through a die cavity locking bolt (7), an ejector rod (12) is placed in a central hole of the lower template, the small end of the ejector rod faces downwards, a guide sleeve (16) is sleeved on an ejector rod (6), the small end of the ejector rod faces upwards, the guide sleeve (16) is arranged in the die cavity (15), a fine extrusion die (17) is sleeved on the guide sleeve (16) on the ejector rod (6), a guide sleeve (18) is sleeved on the fine extrusion die (17) on the ejector rod (6), a lower gland (19) compresses the guide sleeve (18), and the lower gland (19) and the upper end of the die cavity (15) are locked through a lower gland locking bolt (5); the two pull rods (14) are locked by pull rod upper locking nuts (21) through pull rod through holes of the lower template (13) and holes with the upper ends installed on the upper template (2), the discharging block (11) is installed on the discharging beam (10) and locked by discharging block locking nuts (8), and the lower ends of the two pull rods (14) are installed on the discharging beam (10) and locked by pull rod lower locking nuts (9).

2. The press origination die set of claim 1, wherein: the die handle (1) is in clearance fit with the upper die plate (2).

3. The press origination die set of claim 1, wherein: the die handle (1) is in clearance fit with the extruding male die (4).

4. The press origination die set of claim 1, wherein: the die cavity (15) is in clearance fit with the fine extrusion die (17), the material guide sleeve (18) and the guide sleeve (16).

5. The press origination die set of claim 1, wherein: the upper end and the lower end of each pull rod (14) are both provided with threads, and the threads at the lower end are longer than those at the upper end.

6. The press origination die set of claim 1, wherein: the upper end and the lower end of each pull rod (14) are provided with threads.