CN210817231U

CN210817231U - Semi-axis sleeve roll forging forming device

Info

Publication number: CN210817231U
Application number: CN201921965674.XU
Authority: CN
Inventors: 赵洪斌; 颜泽水; 赵德祥; 赵细祥
Original assignee: Nanchang Hongda Casting And Forging Co ltd
Current assignee: Nanchang Hongda Casting And Forging Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-06-23
Anticipated expiration: 2029-11-14

Abstract

The utility model discloses a half-axle sleeve roll forging forming device, which comprises a workbench, a parallel and vertical supporting arm I and a supporting arm II which are fixedly arranged on the workbench, an upper group of parallel and symmetrical forging rolls and a lower group of parallel and symmetrical forging rolls and a driving system; the forging roll comprises a roll body, a forging die, a transmission shaft and a connecting shaft, wherein the transmission shaft and the connecting shaft are respectively arranged at two ends of the roll body; a cantilever type inner supporting shaft is arranged on the supporting arm II, and the upper and lower groups of forging rollers are symmetrical by taking the inner supporting shaft as a central line; the supporting arm I comprises a vertical supporting frame I, two groups of symmetrical internal gears are fixedly installed in the supporting frame I, a blank perforation is arranged in the middle of the supporting frame I, and an external gear meshed with the internal gears is arranged on a shaft head of the connecting shaft; the supporting arm II comprises a vertical supporting frame II, and two groups of bearings matched with the transmission shaft are arranged on the supporting frame II. The utility model discloses utilize both arms to support to make and forge the roller and keep stable to the jackstay supports the blank at the roll forging in-process in setting up, forms balance and fixes a position.

Description

Semi-axis sleeve roll forging forming device

Technical Field

The utility model belongs to the technical field of the roll forging, concretely relates to axle sleeve pipe roll forging forming device.

Background

Roll forging forming belongs to a forging process of convolution compression molding, a pair of counter-rotating rollers is utilized to generate plastic deformation on a forging stock, and the forging process has higher technical and economic advantages than die forging, smaller required working load, high production efficiency, less material consumption, superior quality and good labor condition, and has the advantages of simpler equipment structure, stable production, small vibration and noise, convenience in realizing automation, high production efficiency and the like.

The axle shaft sleeve is an important part on an automobile drive axle assembly, and adopts an integral structure, namely a hollow variable-diameter variable-section tubular body and a flange connecting disc are designed into an integral piece. Roll forging forming is generally used in the processing of half-shaft sleeves due to excellent performance, but because half-shaft sleeves belong to hollow shafts, when blanks enter a rolling section, if the positions are inaccurate or a rolling body is loosened and shaken, the center shaft of a finished product is easily eccentric, and the quality of the finished product is unqualified.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a half axle sleeve pipe roll forging forming device to not enough and a difficult problem among the prior art.

The utility model discloses a following technical scheme realizes:

the semi-axis sleeve roll forging forming device comprises a workbench, a parallel and vertical supporting arm I and a supporting arm II which are fixedly arranged on the workbench, an upper group of forging rolls and a lower group of forging rolls which are arranged between the supporting arm I and the supporting arm II and are in parallel symmetry, and a driving system; the forging roll comprises a roll body, a forging die arranged on the local surface of the roll body, a transmission shaft arranged at one end of the roll body and a connecting shaft arranged at one end of the roll body, the forging die, the transmission shaft and the connecting shaft are of an integrated structure, the side surface of the forging die is fan-shaped, and a shaft head of the transmission shaft penetrates through the supporting arm II to be connected with a driving system; a cantilever type inner supporting shaft is arranged on the supporting arm II, and the upper and lower groups of forging rollers are symmetrical by taking the inner supporting shaft as a central line; the supporting arm I comprises a vertical supporting frame I, two groups of symmetrical inner gears are fixedly installed in the supporting frame I, the positions of the inner gears correspond to those of the two groups of forging rolls, a blank perforation is formed in the middle of the supporting frame I, and an outer gear meshed with the inner gears is arranged on a shaft head of a connecting shaft; the supporting arm II comprises a vertical supporting frame II, two groups of bearings matched with the transmission shaft are arranged on the supporting frame II, and the positions of the two groups of bearings correspond to those of the two groups of forging rollers.

Furthermore, a fixed base is arranged in the middle of the support frame II.

Further, in the non-operating state, the forging dies of the upper forging roll are directed upward, and the forging dies of the lower forging roll are directed downward.

Further, the inner stay is perforated through the blank.

Further, the center lines of the inner support shaft and the blank through hole are concentric shafts.

Compared with the prior art, the utility model discloses beneficial effect includes:

(1) the utility model discloses utilize both arms to support to make and forge the roller and keep stable to prop the axle in setting up, can support the blank at the roll forging in-process, form balance and fix a position.

(2) The utility model discloses utilize the support of bearing and the meshing that reduces friction, external gear and internal gear for more lubricated, the link is more stable when the transmission end rotates.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the support arm i of the present invention.

Fig. 3 is a side view of the support arm ii of the present invention.

Fig. 4 is a front view of the middle forging roll of the present invention.

Illustration of the drawings: 1-workbench, 2-support arm I, 201-support arm I, 202-internal gear, 203-blank perforation, 3-support arm II, 301-support arm II, 302-bearing, 303-fixed base, 4-forging roller, 401-roller body, 402-forging die, 403-external gear, 404-transmission shaft, 405-connection shaft, 5-driving system and 6-internal support shaft.

In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "I" and "II" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, integrally connected; can be mechanical connection and electrical connection; may be directly connected, indirectly connected through intervening agents, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood to be specific to those skilled in the art.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 4, the half-axle sleeve roll forging forming device comprises a workbench 1, a support arm i 2 and a support arm ii 3 which are fixedly installed on the workbench 1 and parallel and vertical, two groups of upper and lower parallel and symmetrical forging rollers 4 installed between the support arm i 2 and the support arm ii 3, and a driving system 5 for providing power for the rotation of the two groups of forging rollers 4. In the specific implementation, the driving system 5 includes a power mechanism, a transmission structure and other basic components, and is a common structure in the rotating system, which is not described in detail in the present invention.

The forging roll 4 comprises a roll body 401, a forging die 402 arranged on the local surface of the roll body 401, a transmission shaft 404 arranged at one end of the roll body 401, and a connecting shaft 405 arranged at one end of the roll body 401, wherein the roll body 401, the forging die 402, the transmission shaft 404 and the connecting shaft 405 are of an integrated structure, and the side surface of the forging die 402 is in a fan shape. The blank is rotationally rolled on the surfaces of the roller body 401 and the forging die 402, so that the surfaces of the blank form different outer diameters and sections; the shaft head of the transmission shaft 404 penetrates through the supporting arm II 3 to be connected with the driving system 5, and the rotating torque of the power mechanism of the transmission shaft is transmitted to the roller, so that the forging roller 4 rotates; the connecting shaft 405 is connected to the support arm i 2 and the forging roll 4 is stabilized by the double arm support and remains stable after a long time use. In order to position the semi-axis sleeve blank, a cantilever type inner supporting shaft 6 is installed on the supporting arm II 3, the upper forging roll set and the lower forging roll set 4 are symmetrical with each other by taking the inner supporting shaft 6 as a central line, in the concrete implementation, when the semi-axis sleeve blank is inserted between the two forging roll sets 4 by utilizing the clamping device, the inner supporting shaft 6 is inserted into a blank hollow cavity, the blank can be supported in the roll forging process, and balance and positioning are formed.

Because the forging rollers 4 are in a rotating state during operation, the connecting shaft 405 is far away from a transmission system, in order to reduce the friction resistance between the supporting arm II 3 and the transmission shaft 404 and keep the stability of the connecting shaft 405, the supporting arm I2 comprises a vertical supporting frame I201, two groups of symmetrical internal gears 202 are fixedly installed in the supporting frame I201, the positions of the internal gears 202 correspond to the two groups of forging rollers 4, a blank through hole 203 is formed in the middle of the supporting frame I201 and used for feeding a half-shaft sleeve blank into the two groups of forging rollers 4 during operation, and an external gear 403 meshed with the internal gear 202 is arranged on a shaft head of the connecting shaft; the supporting arm II 3 comprises a vertical supporting frame II 301, two groups of bearings 302 matched with the transmission shaft 404 are arranged on the supporting frame II 301, the positions of the two groups of bearings 302 correspond to those of the two groups of forging rollers 4, in the specific implementation, the transmission shaft 404 penetrates through the bearings 302, the bearings 302 are used for supporting a rotating body of the transmission shaft 404 and reducing the friction coefficient in the movement process of the rotating body, the supporting frame II 301 also has the function of a bearing seat and plays a role of external support for the bearings 302, and a fixing base 303 used for fastening the internal support shaft 6 is arranged in the middle of the supporting frame II 301. By utilizing the support and friction reduction of the bearing 302 and the meshing between the external gear 403 and the internal gear 202, the transmission end is lubricated more and the connection end is stable more when rotating.

In a non-operating state before or after the rotation of the forging roller 4, the forging die 402 of the upper forging roller 4 faces upwards, and the forging die 402 of the lower forging roller 4 faces downwards, so that the space between the upper and lower roller bodies 401 is large enough, and the semi-shaft sleeve blank or the finished product can conveniently enter and exit.

To improve alignment and accuracy of the billet as it enters and exits, the inner brace 6 extends through the billet perforation 203.

In order to facilitate the positioning of the blank, the center line of the inner support shaft 6 and the blank through hole 203 is concentric.

The foregoing merely illustrates preferred embodiments of the present invention, which are described in considerable detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, modifications and substitutions can be made, which are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. Half axle sleeve pipe roll forging forming device, its characterized in that: the forging roll device comprises a workbench, a parallel and vertical supporting arm I and a supporting arm II which are fixedly installed on the workbench, an upper group of forging rolls and a lower group of forging rolls which are installed between the supporting arm I and the supporting arm II and are in parallel symmetry, and a driving system; the forging roller comprises a roller body, a forging die arranged on the local surface of the roller body, a transmission shaft arranged at one end of the roller body and a connecting shaft arranged at one end of the roller body, the forging die, the transmission shaft and the connecting shaft are of an integrated structure, the side surface of the forging die is fan-shaped, and a shaft head of the transmission shaft penetrates through the supporting arm II to be connected with the driving system; a cantilever type inner supporting shaft is arranged on the supporting arm II, and the upper forging roll and the lower forging roll are symmetrical with each other by taking the inner supporting shaft as a center line; the supporting arm I comprises a vertical supporting frame I, two groups of symmetrical inner gears are fixedly installed in the supporting frame I, the positions of the inner gears correspond to those of the two groups of forging rollers, a blank perforation is arranged in the middle of the supporting frame I, and an outer gear meshed with the inner gears is arranged on a shaft head of the connecting shaft; the supporting arm II comprises a vertical supporting frame II, two groups of bearings matched with the transmission shaft are arranged on the supporting frame II, and the positions of the two groups of bearings correspond to those of the two groups of forging rollers.

2. The half-axle sleeve roll forging forming device according to claim 1, wherein: and a fixed base is arranged in the middle of the bearing frame II.

3. The half-axle sleeve roll forging forming device according to claim 1, wherein: in a non-working state, the forging dies of the upper forging roller face upwards, and the forging dies of the lower forging roller face downwards.

4. The half-axle sleeve roll forging forming device according to claim 1, wherein: the inner brace shaft penetrates through the blank through hole.

5. The half-axle sleeve roll forging forming device according to any one of claims 1 or 4, wherein: the center lines of the inner supporting shaft and the blank through hole are concentric shafts.