Split type forging die for gear

Abstract

The utility model relates to a split type gear forging die which comprises a lower die base and an upper die base, a lower die core is arranged on the lower die base, a lower die inner lower sleeve is arranged at the upper end of the lower die base, a lower die inner upper sleeve is arranged at the upper end of the lower die inner lower sleeve, and a lower die middle sleeve is sleeved on the lower die inner upper sleeve and the lower die inner lower sleeve together. The lower die middle sleeve is sleeved with a lower die outer sleeve. An upper die inner upper sleeve is arranged at the lower end of the upper die base, an upper die inner lower sleeve is arranged at the upper end of the upper die inner upper sleeve, the upper die inner lower sleeve and the upper die inner upper sleeve are jointly sleeved with an upper die middle sleeve, and the upper die middle sleeve is sleeved with an upper die outer sleeve; the split type mold design is adopted, the mold structure is composed of the inner mold body, the cover mold body and the outer mold body, the outer mold body plays a fixing role, the cover mold body plays a stress releasing role, the inner mold body plays a forming role, production can be continued only by replacing the inner mold body after the mold is abraded, and therefore the mold is low in cost and long in service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a gear split forging mold. Background Art

[0002] The gear split forging die is an important tool specially used for gear forging. It is designed based on the forming characteristics of gear forgings to ensure that the gears can be accurately formed under specific process conditions. The integral forging die design method is prone to cracking, has a short lifespan, and has a high replacement cost. Utility Model Content

[0003] The utility model aims to provide a gear split forging die, which can solve the problems raised in the background technology.

[0004] According to the technical solution provided by the utility model: a gear split forging die comprises a lower die seat and an upper die seat, the lower die seat is provided with a lower die core, the upper end of the lower die seat is provided with a lower die inner lower sleeve, the upper end of the lower die inner lower sleeve is provided with a lower die inner upper sleeve, the lower die inner upper sleeve and the lower die inner lower sleeve are jointly provided with a lower die middle sleeve, and the lower die middle sleeve is provided with a lower die outer sleeve;

[0005] The lower end of the upper mold base is provided with an upper mold inner upper sleeve, the upper end of the upper mold inner upper sleeve is provided with an upper mold inner lower sleeve, the upper mold inner lower sleeve and the upper mold inner upper sleeve are jointly provided with an upper mold middle sleeve, and the upper mold middle sleeve is provided with an upper mold outer sleeve.

[0006] Preferably, a first protrusion is provided at the upper end of the upper sleeve in the lower mold, and a second protrusion is provided at the lower end of the lower sleeve in the upper mold, and the second protrusion cooperates with the first protrusion.

[0007] Preferably, a stepped groove is provided at the upper corner of the lower mold sleeve, and a third protrusion is provided at the lower corner of the upper mold sleeve, and the third protrusion cooperates with the stepped groove.

[0008] Preferably, the outer sides of the lower mold sleeve and the upper mold sleeve are both provided with a first groove, and the lower mold base and the upper mold base are both provided with a mold pressing plate through T-slot bolts, and one end of the mold pressing plate is located in the first groove.

[0009] Preferably, the lower die base and the upper die base are respectively provided with second grooves, the two second grooves are opposite to each other up and down, the bottom of the second grooves are provided with T-slot bolts, the T-slot bolts extend out of the mold pressure plate, and the T-slot bolts are threaded with hexagonal nuts for fixing the mold pressure plate.

[0010] Preferably, a second die base positioning block is provided on the side opposite to the upper die base, and a first die base positioning block is provided on the side away from each other, and the center lines of the first die base positioning block and the second die base positioning block are on the same vertical line.

[0011] The positive effects of this application are:

[0012] The gear split forging die provided by the embodiment of the utility model has the following advantages:

[0013] 1. The split mold design is adopted. The mold structure consists of an inner mold, a sleeve mold, and an outer mold. The outer mold plays a fixing role, the sleeve mold plays a stress release role, and the inner mold plays a forming role. When the mold is worn, production can continue by replacing the inner mold. Therefore, the mold cost is low and the mold life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the utility model.

[0015] In the figure: 01, lower die base; 1, upper die base; 2, first die base positioning block; 3, second die base positioning block; 4, T-slot bolt; 5, die pressing plate; 6, hexagonal nut; 7, upper die outer sleeve; 8, lower die outer sleeve; 9, upper die middle sleeve; 10, lower die middle sleeve; 11, upper die inner sleeve; 12, lower die inner sleeve; 13, upper die inner sleeve; 14, lower die inner sleeve; 15, lower die core; 16, second groove. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the solution of the utility model, the following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0017] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0018] like Figure 1As shown, the utility model comprises a lower die base 01 and an upper die base 1, the lower die base 01 is provided with a lower die core 15, the upper end of the lower die base 01 is provided with a lower die inner lower sleeve 12, the upper end of the lower die inner lower sleeve 12 is provided with a lower die inner upper sleeve 14, the lower die inner upper sleeve 14 and the lower die inner lower sleeve 12 are jointly provided with a lower die middle sleeve 10, and the lower die middle sleeve 10 is provided with a lower die outer sleeve 8;

[0019] An upper die inner sleeve 11 is provided at the lower end of the upper die seat 1, an upper die inner lower sleeve 13 is provided at the upper end of the upper die inner upper sleeve 11, an upper die middle sleeve 9 is provided together with the upper die inner upper sleeve 13 and the upper die inner upper sleeve 11, and an upper die outer sleeve 7 is provided on the upper die middle sleeve 9.

[0020] Preferably, a first protrusion is provided at the upper end of the upper sleeve 14 in the lower mold, and a second protrusion is provided at the lower end of the lower sleeve 13 in the upper mold, and the second protrusion cooperates with the first protrusion.

[0021] Preferably, a stepped groove is provided at the upper corner of the lower mold sleeve 8, and a third protrusion is provided at the lower corner of the upper mold sleeve 7, and the third protrusion cooperates with the stepped groove.

[0022] In this embodiment, the outer sides of the lower mold sleeve 8 and the upper mold sleeve 7 are both provided with a first groove, and the lower mold base 01 and the upper mold base 1 are both provided with a mold pressing plate 5 through a T-slot bolt 4, and one end of the mold pressing plate 5 is located in the first groove;

[0023] The lower die base 01 and the upper die base 1 are respectively provided with second grooves 16, the two second grooves 16 are in an upward and downward state facing each other, the bottom of each second groove 16 is provided with a T-slot bolt 4, the T-slot bolt 4 extends out of the die pressing plate 5, and the T-slot bolt 4 is screwed with a hexagonal nut 6 for fixing the die pressing plate 5;

[0024] The design of the T-slot bolts 4 enables the die pressing plate 5 to be firmly fixed on the die seat, thereby ensuring the stability and safety of the die during the forging process.

[0025] Preferably, a second die base positioning block 3 is provided on the side opposite to the upper die base 1 of the lower die base 01, and a first die base positioning block 2 is provided on the side away from the upper die base 1, and the center lines of the first die base positioning block 2 and the second die base positioning block 3 are on the same vertical line.

[0026] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. Gear split forging die, characterized in that: The invention comprises a lower die base (01) and an upper die base (1), wherein a lower die core (15) is arranged on the lower die base (01), a lower die inner lower sleeve (12) is arranged on the upper end of the lower die base (01), a lower die inner upper sleeve (14) is arranged on the upper end of the lower die inner lower sleeve (12), a lower die middle sleeve (10) is arranged on the lower die middle sleeve (10), and a lower die outer sleeve (8) is arranged on the upper end of the lower die inner lower sleeve (12); The lower end of the upper mold base (1) is provided with an upper mold inner upper sleeve (11), the upper end of the upper mold inner upper sleeve (11) is provided with an upper mold inner lower sleeve (13), the upper mold inner lower sleeve (13) and the upper mold inner upper sleeve (11) are jointly sleeved with an upper mold middle sleeve (9), and the upper mold middle sleeve (9) is sleeved with an upper mold outer sleeve (7).

2. The gear split forging die according to claim 1, characterized in that: The upper end of the upper sleeve (14) in the lower mold is provided with a first protrusion, and the lower end of the lower sleeve (13) in the upper mold is provided with a second protrusion, and the second protrusion cooperates with the first protrusion.

3. The gear split forging die according to claim 1, characterized in that: A stepped groove is provided at the upper corner of the lower mold sleeve (8), and a third protrusion is provided at the lower corner of the upper mold sleeve (7), and the third protrusion cooperates with the stepped groove.

4. The gear split forging die according to claim 1, characterized in that: The outer sides of the lower mold sleeve (8) and the upper mold sleeve (7) are both provided with a first groove, and the lower mold base (01) and the upper mold base (1) are both provided with a mold pressing plate (5) via a T-slot bolt (4), and one end of the mold pressing plate (5) is located in the first groove.

5. The gear split forging die according to claim 1, characterized in that: The lower die base (01) and the upper die base (1) are respectively provided with second grooves (16), the two second grooves (16) are in an upper and lower relative state, and the bottom of the second grooves (16) are provided with T-slot bolts (4), the T-slot bolts (4) extend out of the die pressing plate (5), and the T-slot bolts (4) are screwed with hexagonal nuts (6) for fixing the die pressing plate (5).

6. The gear split forging die according to claim 1, characterized in that: A second die base positioning block (3) is provided on the side of the lower die base (01) opposite to the upper die base (1), and a first die base positioning block (2) is provided on the side of the lower die base (01) away from the upper die base (1), wherein the center lines of the first die base positioning block (2) and the second die base positioning block (3) are on the same vertical line.

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