CN218963909U

CN218963909U - Accurate upsetting die device for slender bar

Info

Publication number: CN218963909U
Application number: CN202223085148.9U
Authority: CN
Inventors: 翁贤东; 储西来
Original assignee: Nanjing Liju Precision Forging Co ltd
Current assignee: Nanjing Liju Precision Forging Co ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-05-05
Anticipated expiration: 2032-11-17

Abstract

The utility model discloses a precise upsetting die device for a slender rod, which belongs to the technical field of rod processing and comprises a lower die plate and an upper die plate, wherein the upper end of one side of the lower die plate is movably connected with a fixed half die, one side of the fixed half die is slidably connected with a movable half die, and the other side of the upper end of the lower die plate is movably connected with a hydraulic cylinder. The manufacturing cost and the labor cost are saved, and the productivity is improved.

Description

Accurate upsetting die device for slender bar

Technical Field

The utility model belongs to the technical field of bar processing, and particularly relates to a precise upsetting die device for an elongated bar.

Background

According to the conventional free-state upsetting process, the upsetting of the slender bar is impossible to form, the ratio of the upsetting ratio to the upsetting ratio is beyond 1:3, and some forging factories adopt local heating upsetting and the upsetting is followed by integral heating die forging.

Such a process is time-consuming and labor-consuming, increasing the manufacturing costs. If an integral upsetting die is used, the material is difficult to take after upsetting.

Disclosure of Invention

Aiming at the time and labor consumption of the existing process, the manufacturing cost is increased. If an integral upsetting die is used, the problem that material taking is difficult after upsetting is solved, the utility model provides a precise upsetting die device for slender bar materials, which comprises a lower die plate and an upper die plate, wherein the upper end of one side of the lower die plate is movably connected with a fixed half die, one side of the fixed half die is slidably connected with a movable half die, the other side of the upper end of the lower die plate is movably connected with a hydraulic cylinder, the assembly is matched with the hydraulic cylinder to be used for conveniently taking and discharging materials, and the device can be used for directly die forging and forming after upsetting and blank making without secondary heating. The manufacturing cost and the labor cost are saved, and the productivity is improved.

In order to solve the problems, the utility model adopts the following technical scheme.

The precise upsetting die device for the elongated bar comprises a lower die plate and an upper die plate, wherein a fixed half die is movably connected to the upper end of one side of the lower die plate, a movable half die is slidably connected to one side of the fixed half die, and a hydraulic cylinder is movably connected to the other side of the upper end of the lower die plate.

Specifically, the fixed half die and the movable half die are used for inserting bars, and the upper die plate is pressed down to tightly combine the bars with the outer conical surface of the fixed half die without stretching the pier head through the hydraulic cylinder.

Further, the upper end of the lower template is movably connected with a fixed support, and the fixed support is movably connected with the fixed support.

Specifically, the telescopic end of the hydraulic cylinder can be aligned to the outer conical surface of the fixed half die through the fixed support.

Further, the hydraulic cylinder is movably mounted on the fixed support through the stud bolts and the nuts, and the fixed support is movably connected with the lower die plate through the bolts.

In particular, the hydraulic cylinder can be conveniently maintained and replaced through movable connection.

Further, the rod is inserted into the interior of the fixed half die.

Specifically, the bar stock is inserted into the fixed half die and the movable half die to carry out pier heads.

Further, the upper die plate is arranged right above the fixed half die and the movable half die.

Specifically, the bar stock can be compressed tightly through the extension of the upper template and the pier head is carried out in cooperation with the fixed half die.

Further, a connecting hinge is movably connected between the movable half die and the fixed half die.

Further, the telescopic end of the hydraulic cylinder is movably connected with a locking sleeve, one side of the locking sleeve, which is close to the outer wall of the fixed half die, is provided with an inner conical surface, and the locking sleeve is aligned with the side wall of the fixed half die.

Further, the fixed half die is movably connected to the lower die plate through an inner hexagon bolt, and the outer wall of the fixed half die is a conical surface.

Specifically, the outer conical surface of the fixed half die is inserted into the inner conical surface of the locking sleeve, so that the fixed half die can be pressed tightly, and the bar stock is tightly attached to the inner wall of the fixed half die.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, the movable half die device is adopted, so that the material can be conveniently taken and placed, and the upsetting blank can be directly formed by die forging without secondary heating. The manufacturing cost and the labor cost are saved, and the productivity is improved.

Drawings

FIG. 1 is a schematic view showing the structure of an accurate upsetting die device for an elongated bar stock in the present utility model

The correspondence between the reference numerals and the component names in the drawings is as follows:

1. an upper template; 2. a bar stock; 3. fixing a half mould; 4. a movable half mould; 5. a hydraulic cylinder; 6. a stud bolt; 7. a nut; 8. a lower template; 9. a fixed bracket; 10. an inner hexagon bolt; 11. a connecting hinge; 12. a locking sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1, a schematic structural diagram of an accurate upsetting die device for an elongated bar in a preferred embodiment of the present utility model is shown, and the accurate upsetting die device for an elongated bar in this embodiment includes a lower die plate 8 and an upper die plate 1, wherein a fixed half die 3 is movably connected to an upper end of one side of the lower die plate 8, a movable half die 4 is slidably connected to one side of the fixed half die 3, and a hydraulic cylinder 5 is movably connected to the other side of the upper end of the lower die plate 8.

Specifically, the fixed half die 3 and the movable half die 4 are used for inserting the bar 2, and the upper die plate 1 is pressed down to perform pier head extension on the bar 2 without tightly combining with the outer conical surface of the fixed half die 3 through the extension of the hydraulic cylinder 5.

Further, the upper end of the lower template 8 is movably connected with a fixed bracket 9, and the fixed bracket 9 is movably connected with the fixed bracket 9.

Specifically, the telescopic end of the hydraulic cylinder 5 can be aligned with the outer conical surface of the fixed half die 3 by the fixing bracket 9.

Further, the hydraulic cylinder 5 is movably mounted on the fixed support 9 through the stud 6 and the nut 7, and the fixed support 9 is movably connected with the lower die plate 8 through the bolt.

In particular, the hydraulic cylinder 5 can be easily maintained and replaced by a movable connection.

Further, the bar stock 2 is inserted into the fixed half die 3.

Specifically, the bar stock 2 is inserted into the inside of the fixed half die 3 and the movable half die 4 to perform heading.

Further, the upper die plate 1 is arranged right above the fixed half die 3 and the movable half die 4.

Specifically, the bar 2 can be compressed by the extension of the upper die plate 1 and the pier head can be carried out by matching with the fixed half die 3.

Further, a connecting hinge 11 is movably connected between the movable half die 4 and the fixed half die 3.

Further, the telescopic end of the hydraulic cylinder 5 is movably connected with a locking sleeve 12, one side of the locking sleeve 12, which is close to the outer wall of the fixed half die 3, is provided with an inner conical surface, and the locking sleeve 12 is aligned with the side wall of the fixed half die 3.

Further, the fixed half die 3 is movably connected to the lower die plate 8 through an inner hexagon bolt 10, and the outer wall of the fixed half die 3 is a conical surface.

Specifically, the outer conical surface of the fixed half die 3 is inserted into the inner conical surface of the locking sleeve 12, so that the fixed half die 3 can be pressed tightly, and the bar 2 is tightly attached to the inner wall of the fixed half die 3.

Working principle: the method comprises the steps of starting a press, vertically placing a bar 2 in a fixed half die 3 after the bar 2 is integrally heated, closing a movable half die 4, starting a hydraulic cylinder 5 to enable a piston of the hydraulic cylinder 5 to push towards the fixed half die 3, tightly combining an inner conical surface of a locking sleeve 12 with an outer conical surface of the fixed half die 3, locking the fixed half die 3 and the movable half die 4 to form a part, needing no upsetting, of the lower half part of the bar 2, fixing the whole die sleeve, enabling an upper die plate 1 to descend, upsetting the upper half part of the bar 2, tightly locking the fixed half die 3 due to the fact that the hydraulic cylinder 5 pushes the locking sleeve 12, firmly holding the bar 2 by the fixed half die 3, enabling the upper die plate 1 to ascend after upsetting, releasing the hydraulic cylinder 5, retreating the locking sleeve 12 out of a half die handle, opening the movable half die 4, and taking out upsetting materials.

The foregoing is a further elaboration of the present utility model in connection with the detailed description, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, should be considered as falling within the scope of the utility model as defined in the appended claims.

Claims

1. An accurate upsetting die device of slender rod, its characterized in that: the upsetting die device comprises a lower die plate (8) and an upper die plate (1), wherein a fixed half die (3) is movably connected to the upper end of one side of the lower die plate (8), a movable half die (4) is slidably connected to one side of the fixed half die (3), and a hydraulic cylinder (5) is movably connected to the other side of the upper end of the lower die plate (8).

2. An elongated bar precision upsetting die device as recited in claim 1, further characterized by: the upper end of the lower template (8) is movably connected with a fixed bracket (9), and the fixed bracket (9) is movably connected with the fixed bracket (9).

3. An elongated bar precision upsetting die device as recited in claim 2, further characterized by: the hydraulic cylinder (5) is movably arranged on the fixed support (9) through the stud (6) and the nut (7), and the fixed support (9) is movably connected with the lower die plate (8) through the bolt.

4. A precision upsetting die device as recited in claim 3, further characterized by: the movable half die (4) and the fixed half die (3) are internally inserted into the bar stock (2).

5. An elongated bar precision upsetting die device as recited in claim 4, further characterized by: the upper die plate (1) is arranged right above the fixed half die (3) and the movable half die (4).

6. An elongated bar precision upsetting die device as recited in claim 5, further characterized by: a connecting hinge (11) is movably connected between the movable half mould (4) and the fixed half mould (3).

7. The precise upsetting die device for an elongated bar as recited in claim 6, wherein: the telescopic end of the hydraulic cylinder (5) is movably connected with a locking sleeve (12), one side of the locking sleeve (12) close to the outer wall of the fixed half die (3) is provided with an inner conical surface, and the locking sleeve (12) is aligned with the side wall of the fixed half die (3).

8. An elongated bar precision upsetting die device as recited in claim 7, further characterized by: the fixed half die (3) is movably connected to the lower die plate (8) through an inner hexagon bolt (10), and the outer wall of the fixed half die (3) is a conical surface.