A processing method for a reinforcing ring for a drive axle housing, a reinforcing ring and a forming die

Abstract

The present invention relates to a processing method for a reinforcing ring for a drive axle housing, a reinforcing ring and a forming die. The processing method is as follows: draw an octagonal reinforcing ring drawing, and set and draw a weld line at the center of the two shortest symmetrical sides; set out the shape on the sheet material in a flame cutting manner according to the size of half of the reinforcing ring; put the initial material into a medium frequency heating device for heating, and heat it to 900°C through medium frequency; the medium frequency heating device includes a medium frequency diathermy device, a medium frequency induction heating device or a medium frequency heating furnace; put the initial material heated to 900°C into a forming die for pressing to the size requirement to form a half reinforcing ring, cool the half reinforcing ring to room temperature, and cut the half reinforcing ring; put a pair of half reinforcing rings into a welding fixture and then weld them together to form a reinforcing ring. At the same time, a reinforcing ring processed by the method and a special forming die are also provided. The material utilization rate of the process reaches 95%, reducing the production cost.

Description

Technical Field

[0001] The invention relates to a processing method of a reinforcement ring for a drive axle housing, a reinforcement ring and a forming die, and belongs to the technical field of reinforcement ring processing. Background Art

[0002] The reinforcing ring for the drive axle housing is used for welding the main reduction side of the drive axle housing to fix the reducer housing and increase the strength of the axle housing. The current production method of this part is to cut the sheet material as a whole or forge it into a special shape, and then process it into a blank through other processes. However, the reinforcing ring processed by the existing processing technology has obvious waste of sheet material, especially in the process of machining and forming after the primary product is made, a large amount of sheet material must be removed, which is not conducive to energy saving and environmental protection. Summary of the invention

[0003] Aiming at the problem of low material utilization rate in the prior art, the present invention provides a processing method of a reinforcing ring for a drive axle housing, a reinforcing ring and a forming die.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: A method for processing a reinforcing ring for a drive axle housing, characterized in that it is processed by the following process:

[0005] The first step is to draw a reinforcement ring drawing, set and draw a weld line on the reinforcement ring at a symmetrical position of the reinforcement ring center, and determine the size of half of the reinforcement ring;

[0006] The second step is to flame cut the shape of the sheet material according to the size of half the reinforcement ring to make the initial material;

[0007] The third step is to put the raw material into the medium frequency heating equipment and heat it to 900℃;

[0008] The fourth step is to put the raw material heated to 900°C into a forming mold and press it to the required size to form a semi-reinforced ring, cool the semi-reinforced ring to room temperature, and perform a cut on the semi-reinforced ring;

[0009] The fifth step is to place a pair of half reinforcement rings into a welding fixture and then weld them together to form a reinforcement ring.

[0010] Precisely designed and cut sheets can avoid waste to the greatest extent possible. A two-stage processing method is adopted to achieve solid solution treatment of the material during medium frequency heating, thereby improving the strength and toughness of the sheet.

[0011] On the basis of the above technical solution, in order to achieve the convenience of use and the stability of the equipment, the present invention can also make the following improvements to the above technical solution:

[0012] Furthermore, the medium frequency heating equipment includes medium frequency heating equipment, medium frequency induction heating equipment or medium frequency heating furnace.

[0013] Furthermore, the reinforcement ring is a regular polygon, a circle or an irregular polygon.

[0014] At the same time, the present application also uses the above processing method to process a reinforcing ring for a drive axle housing:

[0015] A reinforcing ring for a drive axle housing, characterized in that it is processed in the following manner: the first step is to draw a reinforcing ring drawing, and set and draw a welding line on the reinforcing ring at a central symmetrical position of the reinforcing ring to determine the size of half of the reinforcing ring; the second step is to shape the sheet material according to the size of half of the reinforcing ring by flame cutting to make a primary material; the third step is to put the primary material into a medium frequency heating device for heating, and heat it to 900°C through medium frequency, and the medium frequency heating device includes a medium frequency heat-transmitting device, a medium frequency induction heating device or a medium frequency heating furnace; the fourth step is to put the primary material heated to 900°C into a forming mold and press it to the size requirement to make a half reinforcing ring, cool the half reinforcing ring to room temperature, and cut the half reinforcing ring; the fifth step is to put a pair of half reinforcing rings into a welding fixture and then weld them together to make a reinforcing ring; the reinforcing ring includes a pair of half reinforcing rings that are symmetrically welded, and the half reinforcing ring includes a middle section, inclined sections on both sides of the middle section, and a vertical section at the end of the inclined section, and the middle section is perpendicular to the vertical section; the pair of half reinforcing rings are welded at the end of the vertical section. The welding method can facilitate the transportation of the reinforcement ring and can be welded on site.

[0016] This application provides a special processing mold for the above processing method:

[0017] A forming die for a method of processing a reinforcing ring for a drive axle housing, characterized in that it includes a clamp body with a square shell, a pair of matching punches and die are placed in the clamp body, a positioning block is installed in the middle of the punch pressing end by bolts, a connecting piece is installed in the center of the punch base, and the end of the output shaft of the oil cylinder fixed to the outside of the clamp body by bolts is connected to the connecting piece; a buffer sleeve is mounted on the outside of the output shaft of the oil cylinder, and the buffer sleeve is welded to the inner wall of the clamp body.

[0018] The advantages of the present invention are: the sheet material of the reinforcing ring is obtained by hot pressing in two or more sections and then welding, and the sheet material is flame cut to a lofted shape. After medium frequency heating to 900°C, it is placed in a forming mold and pressed to the required size, and the workpiece is cut when it cools to room temperature. It is assembled and welded with a special welding fixture. The material utilization rate of this process reaches 95%, reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the reinforcing ring for the drive axle housing of the present application;

[0020] Figure 2 The present invention is a schematic diagram of the structure of a molding die for a method of processing a reinforcing ring for a drive axle housing.

[0021] The reference numerals are recorded as follows: 1-oil cylinder, 2-buffer sleeve, 3-connecting piece, 4-punch, 5-positioning block, 6-die, 7-semi-reinforcement ring sheet, 7.1-middle section, 7.2-inclined section, 7.3-vertical section, 8-clamp body. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0023] A method for processing a reinforcing ring for a drive axle housing is processed by the following process:

[0024] The first step is to draw an octagonal reinforcement ring drawing, set and draw a weld line at the center of the two shortest symmetrical sides, and determine the size of half the reinforcement ring; in this embodiment, an octagonal reinforcement ring is taken as an example, and other regular polygons, circles, or reinforcement rings with irregular polygonal structures can also be used.

[0025] The second step is to flame cut the shape of the sheet material according to the size of half the reinforcement ring to make the initial material;

[0026] The third step is to place the raw material in a medium frequency heating device and heat it to 900° C. The medium frequency heating device includes a medium frequency heating device, a medium frequency induction heating device or a medium frequency heating furnace.

[0027] The fourth step is to put the raw material heated to 900°C into a forming mold and press it to the required size to form a semi-reinforced ring, cool the semi-reinforced ring to room temperature, and perform a cut on the semi-reinforced ring;

[0028] The fifth step is to place a pair of half reinforcement rings into a welding fixture and then weld them together to form a reinforcement ring.

[0029] The reinforcement ring processed by the above processing method is: the reinforcement ring includes a pair of half reinforcement rings symmetrically welded (see Figure 1 ), the half reinforcement ring includes a middle section 7.1, inclined sections 7.2 on both sides of the middle section 7.1, and a vertical section 7.3 at the end of the inclined section 7.2, the middle section 7.1 is perpendicular to the vertical section 7.3; the pair of half reinforcement rings are welded at the end of the vertical section 7.3.

[0030] A forming die for a processing method of a reinforcing ring for a drive axle housing (see Figure 2), including a square-shell clamp body 8, a pair of matched punches 4 and dies 6 are placed in the clamp body 8, a positioning block 5 is installed in the middle of the punch 4 pressing end by bolts, a connecting piece 3 is installed in the center of the base of the punch 4, and the end of the output shaft of the oil cylinder 1 fixed to the outside of the clamp body 8 by bolts is connected to the connecting piece 3; the buffer sleeve 2 is sleeved on the outside of the output shaft of the oil cylinder 1, and the buffer sleeve 2 is welded to the inner wall of the clamp body 8. The punch and the die can be set accordingly according to the structure of the reinforcement ring to be processed.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for processing a reinforcing ring for a drive axle housing, characterized in that: It is processed by the following process: The first step is to draw a reinforcement ring drawing, set and draw a weld line on the reinforcement ring at a symmetrical position of the reinforcement ring center, and determine the size of half of the reinforcement ring; The second step is to flame cut the shape of the sheet material according to the size of half the reinforcement ring to make the initial material; The third step is to put the raw material into the medium frequency heating equipment and heat it to 900℃; The fourth step is to put the raw material heated to 900°C into a forming mold and press it to the required size to form a semi-reinforced ring, cool the semi-reinforced ring to room temperature, and perform a cut on the semi-reinforced ring; The fifth step is to place a pair of half reinforcement rings into a welding fixture and then weld them together to form a reinforcement ring.

2. The method for processing a reinforcing ring for a drive axle housing according to claim 1, characterized in that: The medium frequency heating equipment includes medium frequency heating equipment, medium frequency induction heating equipment or medium frequency heating furnace.

3. The method for processing a reinforcing ring for a drive axle housing according to claim 1, characterized in that: The reinforcement ring comprises a pair of half reinforcement rings symmetrically welded together, wherein the half reinforcement ring comprises a middle section (7.1), inclined sections (7.2) on both sides of the middle section (7.1), and vertical sections (7.3) at the ends of the inclined sections (7.2), and the middle section (7.1) is perpendicular to the vertical section (7.3).

4. A reinforcing ring for a drive axle housing, characterized in that: It is processed in the following way: The first step is to draw a reinforcement ring drawing, set and draw a weld line on the reinforcement ring at a symmetrical position of the reinforcement ring center, and determine the size of half of the reinforcement ring; The second step is to flame cut the shape of the sheet material according to the size of half the reinforcement ring to make the initial material; The third step is to place the raw material in a medium frequency heating device and heat it to 900° C. The medium frequency heating device includes a medium frequency heating device, a medium frequency induction heating device or a medium frequency heating furnace; The fourth step is to put the raw material heated to 900°C into a forming mold and press it to the required size to form a semi-reinforced ring, cool the semi-reinforced ring to room temperature, and perform a cut on the semi-reinforced ring; The fifth step is to place a pair of half reinforcement rings into a welding fixture and then weld them together to form a reinforcement ring.

5. The reinforcing ring for the drive axle housing according to claim 4, characterized in that: The reinforcement ring comprises a pair of half reinforcement rings symmetrically welded together, the half reinforcement rings comprising a middle section (7.1), inclined sections (7.2) on both sides of the middle section (7.1), and vertical sections (7.3) at the ends of the inclined sections (7.2), the middle section (7.1) being perpendicular to the vertical sections (7.3).

6. The reinforcing ring for the drive axle housing according to claim 5, characterized in that: The pair of half reinforcing rings are welded at the ends of the vertical section (7.3).

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