CN213531621U

CN213531621U - Lathe support for automobile half shaft

Info

Publication number: CN213531621U
Application number: CN202022052615.2U
Authority: CN
Inventors: 汪胜利
Original assignee: Hubei Shenli Auto Parts And Components Share Co ltd
Current assignee: Hubei Shenli Auto Parts And Components Share Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-06-25
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a lathe support for car semi-axis belongs to semi-axis processing equipment technical field. The device comprises a bottom plate, a vertical plate on the bottom plate, a lifting plate which is arranged on the vertical plate and can be adjusted up and down, a connecting plate at the top of the lifting plate, a sleeve which is arranged on the connecting plate along the front-back direction, a main shaft which penetrates through the sleeve and can move back and forth in the sleeve, a bearing support at the front end of the main shaft, two groups of bearing groups on the bearing support, an adjusting sleeve which is arranged at the rear part in the sleeve and can be adjusted back and forth, a locking nut at the rear end of the main shaft and a damping spring; the main shaft is a stepped rod with a large front part and a small rear part, the rear part of the main shaft penetrates through the adjusting sleeve backwards, and the rear end of the main shaft is a screw rod and is in threaded connection with the locking nut; the locking nut abuts against the rear side of the adjusting sleeve, and the damping spring is positioned between the stepped surface of the main shaft and the front side of the adjusting sleeve; the two groups of bearing groups are both propped against the rear side of the half shaft and are composed of two bearings which are arranged in an up-and-down symmetrical mode. The device has the advantages of simple structure, low price, high adaptability and the like.

Description

Lathe support for automobile half shaft

Technical Field

The utility model belongs to the technical field of the semi-axis processing equipment, in particular to a lathe support for car semi-axis.

Background

In the automobile structure, a half shaft, also called a driving shaft, is a shaft for connecting a differential mechanism and a driving wheel, the half shaft is a shaft for transmitting torque between a speed reducer of a gearbox and the driving wheel, the inner end and the outer end of the half shaft are respectively provided with a universal joint, and the half shaft is respectively connected with a gear of the speed reducer and an inner ring of a hub bearing through splines on the universal joint and is an important component of an automobile transmission system. The total length of the automobile half-shaft products is generally 700 plus 1000mm, and the manufacturing process is very fine.

In the prior art, a lathe is required to process a half shaft, a workbench and a tool rest (capable of moving back and forth) are arranged on the existing lathe, the workbench is arranged along the left and right directions, a clamp (comprising a tip, a machine head and the like) for clamping and driving the half shaft to rotate is arranged on the workbench, and the tool rest is located behind the workbench. When a lathe produces shaft rod type workpieces, half shaft products belong to slender shaft type parts, and the main difficulty of processing is that the shaft rod has overlarge elasticity and shakes, so that the surface has ripples, and the roughness meets the requirement of customers, thereby generating waste products.

In order to solve the problem, a containing type hydraulic center frame and an open type hydraulic center frame are designed in the prior art. The main defect of the containing type hydraulic center frame is that the phenomenon of cutter connection exists, and the selling price is about 3.2-3.8 ten thousand yuan. Although the open type hydraulic center frame has no knife connecting phenomenon, the setting center needs to be adjusted, the selling price is about 3.5-5 ten thousand yuan, the selling price of the two center frames is higher due to the fact that the two center frames relate to a hydraulic system, the cost pressure is increased, almost all equipment is used as an auxiliary tool, and most manufacturers cannot accept the auxiliary tool.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the embodiment of the utility model provides a lathe support for automobile semi-axis according to product characteristics and the defect and the price pressure of outsourcing the centre frame, research and development this support, solved production axle class spare shake the sword, the problem that can not big amount of a knife feed. The technical scheme is as follows:

the embodiment of the utility model provides a lathe support for automobile half shaft, including fix bottom plate 1 on the workstation, riser 2 of vertical setting on bottom plate 1, riser 3 on riser 2 and can adjust the position from top to bottom, connecting plate 4 that riser 3 top and level set up, along front and back to locating sleeve 5 on connecting plate 4, run through sleeve 5 and can be in sleeve 5 fore-and-aft movement's main shaft 6, the bearing support 7 of main shaft 6 front end, two sets of bearing group 8 that the bilateral symmetry set up on bearing support 7, the adjusting collar 9 that can adjust the position from front to back and the rear portion in sleeve 5, the lock nut 10 of main shaft 6 rear end and damping spring 11 between sleeve 5 and main shaft 6; the main shaft 6 is a stepped rod with a large front part and a small rear part, the front part of the main shaft is in clearance fit with the inner wall of the sleeve 5, the rear part of the main shaft passes through the adjusting sleeve 9 backwards, and the rear end of the main shaft is provided with a screw 12 and is in threaded connection with the locking nut 10; the locking nut 10 abuts against the rear side of the adjusting sleeve 9, and the damping spring 11 is sleeved in the middle of the main shaft 6 and is located between the stepped surface 22 of the main shaft 6 and the front side of the adjusting sleeve 9; the two sets of bearing sets 8 are both abutted against the rear side of the half shaft 13 and are composed of two bearings 14 which are arranged in an up-down symmetry manner, and the two bearings 14 are both arranged in the left-right direction and are respectively abutted against the upper part and the lower part of the rear side of the half shaft 13.

Wherein, the embodiment of the utility model provides an in bottom plate 1 arrange in on the upper surface of workstation and its front and back both sides be equipped with respectively with the workstation around both sides complex fixed block 15, fixed block 15 is leaned on front side or the rear side that the workstation corresponds for with workstation complex sloping block and its top.

Preferably, the adjusting sleeve 9 in the embodiment of the present invention is coaxially provided with a rotating disc 16 at the rear end, and the rotating disc 16 is provided with a handle 17.

Specifically, the rear part of the sleeve 5 in the embodiment of the present invention is coaxially provided with a stepped hole 18 for mounting the adjusting sleeve 9, and the rear end face thereof is coaxially provided with a threaded sleeve 19; the threaded sleeve 19 is fixedly welded on the sleeve 5; the front part of the adjusting sleeve 9 is positioned in the stepped hole 18, and the outer wall of the adjusting sleeve is provided with threads which are in threaded connection with a threaded sleeve 19; the rear part of the main shaft 6 is in clearance fit with the inner wall of the adjusting sleeve 9.

Wherein, the embodiment of the utility model provides an in riser 2 along the setting of longitudinal direction, four slotted holes 20 of having arranged are the rectangle on the left side or the right side that riser 2 was located to lifter plate 3 and it, slotted hole 20 sets up along vertical direction, be equipped with four through-holes that correspond with slotted hole 20 on riser 2, four fixing bolt 21 pass four slotted holes 20 respectively and the through-hole that corresponds and cooperate the nut with riser 2 and lifter plate 3 fixed together.

Specifically, the distance between the two sets of bearing sets 8 in the embodiment of the present invention is 40-70 mm.

The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the embodiment of the utility model provides a lathe support for car semi-axis, it can reduce the shake of semi-axis, has guaranteed the machining precision; meanwhile, the device has the advantages of simple structure, low price, high adaptability and the like.

Drawings

Fig. 1 is a schematic structural diagram of a lathe support for an automobile half shaft in an embodiment of the present invention.

In the figure: the device comprises a base plate 1, a vertical plate 2, a lifting plate 3, a connecting plate 4, a sleeve 5, a main shaft 6, a bearing support 7, a bearing group 8, an adjusting sleeve 9, a locking nut 10, a damping spring 11, a screw rod 12, a half shaft 13, a bearing 14, a fixed block 15, a turntable 16, a handle 17, a stepped hole 18, a threaded sleeve 19, a long circular hole 20, a fixing bolt 21 and a stepped surface 22.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the embodiment of the present invention provides a lathe support for an automotive axle shaft, which is disposed at the middle of a working table corresponding to an axle shaft 13, and can be supported by the middle of the axle shaft 13 to support the upper part and the lower part of the axle shaft 13 in a wrapping manner so as to reduce the vibration of the axle shaft. The lathe support comprises a bottom plate 1 (specifically a rectangular plate arranged in the left-right direction) fixed on a workbench, a vertical plate 2 (specifically a right-angle trapezoidal plate) vertically arranged on the bottom plate 1, a lifting plate 3 (specifically a rectangular plate vertically arranged) arranged on the vertical plate 2 and capable of adjusting the position up and down, a connecting plate 4 (specifically a rectangular plate arranged in the front-back direction) horizontally arranged on the top of the lifting plate 3, a sleeve 5 (specifically a cylindrical structure) arranged on the connecting plate 4 (upper side) in the front-back direction, a main shaft 6 (coaxially arranged with the sleeve 5) penetrating through the sleeve 5 and capable of moving back and forth in the sleeve 5, a bearing support 7 (specifically a rectangular plate arranged in the left-right direction and provided with an arc-shaped groove in the left-right direction) at the front end of the main shaft 6, and two groups of bearings 8 (specifically arranged on the bearing support 7 and arranged in the left-right direction symmetrically (specifically arranged on the left side, preferably, the half shaft 13 is arranged symmetrically left and right at the midpoint thereof), an adjusting sleeve 9 (specifically, a cylindrical structure, and coaxially arranged with the main shaft 6) which is arranged at the inner rear portion of the sleeve 5 and can adjust the position back and forth, a lock nut 10 (specifically, the lock nut can be composed of two nuts arranged side by side back and forth to avoid thread slipping) at the rear end of the main shaft 6, and a damping spring 11 (required to have large elasticity to reduce the vibration of the half shaft 13, and the elasticity can be realized by adjusting the position of the adjusting sleeve 9) between the sleeve 5 and the main shaft 6, and the like. The main shaft 6 is a stepped rod with a large front part and a small rear part (the diameter of the front part is larger than that of the rear part of the main shaft and the front part and the rear part are coaxially arranged), the front part of the main shaft is in clearance fit with the inner wall of the sleeve 5 to reduce the shaking of the half shaft 6, the rear part of the main shaft passes through the adjusting sleeve 9 backwards, and the rear end of the main shaft is provided with a screw 12 (the front part is positioned in the adjusting sleeve 9) and is in threaded. The locking nut 10 is abutted against the rear side of the adjusting sleeve 9, and the damping spring 11 is sleeved in the middle of the main shaft 6 and is positioned between the stepped surface 22 of the main shaft 6 and the front side of the adjusting sleeve 9. Two sets of bearing groups 8 all lean on the rear side of half axle 13 and it comprises two bearings 14 that the longitudinal symmetry set up (with half axle 13), and two bearings 14 of same set of bearing group 8 all set up and lean on respectively in the upper and lower portion of half axle 13 rear side along controlling to the setting, and the external diameter of bearing 14 is better bigger than the diameter of half axle 13, and two bearings 14 set up the product that can adapt to multiple specification from top to bottom side by side, and four bearings 14 are the rectangle and arrange.

Wherein, referring to fig. 1, in the embodiment of the present invention, the bottom plate 1 (width and width matching of the workbench) is disposed on the upper surface of the workbench and the front and back sides thereof are respectively provided with the fixing blocks 15 matching with the front and back sides of the workbench, the fixing blocks 15 are inclined blocks (inner side is inclined plane, angle is usually 55 °) matching with the workbench, and the inclined blocks abut against the front side or the back side corresponding to the workbench, and the front side or the back side of the bottom plate 1 is fixed by the bolts (capable of realizing locking) in the front and back directions.

Preferably, referring to fig. 1, in the embodiment of the present invention, a rotating disc 16 is coaxially disposed at the rear end of the adjusting sleeve 9 so as to drive the adjusting sleeve 9 to rotate, and a handle 17 is disposed on the rotating disc 16; the handle 17 is provided on the rear outer edge of the turntable 16 and is disposed obliquely outward from front to rear.

Specifically, referring to fig. 1, the rear portion of the sleeve 5 in the embodiment of the present invention is coaxially provided with a stepped hole 18 (the inner diameter of the rear portion is larger) for mounting the adjustment sleeve 9, and a threaded sleeve 19 is coaxially provided on the rear end surface thereof. The threaded sleeve 19 is welded and fixed to the sleeve 5. The front part of the adjusting sleeve 9 is positioned in the stepped hole 18 and can move back and forth in the stepped hole 18, and the outer wall of the adjusting sleeve is provided with threads which are in threaded connection with a threaded sleeve 19. The rear part (not the screw 12 part) of the main shaft 6 is in clearance fit with the inner wall of the adjusting sleeve 9 to reduce the shaking.

Wherein, referring to fig. 1, the vertical plate 2 in the embodiment of the present invention is disposed along the front-back direction, the lifting plate 3 is disposed on the left side or the right side of the vertical plate 2 and is arranged in a rectangular manner (the rectangular shape formed is disposed along the vertical direction), and four long circular holes 20 (for the fixing bolts 21 to pass through) are disposed on the lifting plate, and the long circular holes 20 are disposed along the vertical direction. Four through holes (for the fixing bolts 21 to pass through) corresponding to the oblong holes 20 are formed in the vertical plate 2, and the four fixing bolts 21 respectively pass through the four oblong holes 20 and the corresponding through holes and are matched with nuts to fix the vertical plate 2 and the lifting plate 3 together. The position of the lifting plate 3 can be adjusted by loosening the fixing bolt 21.

Specifically, the distance between the two sets of bearing sets 8 in the embodiment of the present invention is 40-70mm to ensure the supporting effect.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The lathe support for the automobile half shaft is characterized by comprising a bottom plate (1) fixed on a workbench, a vertical plate (2) vertically arranged on the bottom plate (1), a lifting plate (3) which is arranged on the vertical plate (2) and can be adjusted in position up and down, a connecting plate (4) which is arranged at the top of the lifting plate (3) horizontally, a sleeve (5) which is arranged on the connecting plate (4) in the front-back direction, a main shaft (6) which penetrates through the sleeve (5) and can move back and forth in the sleeve (5), a bearing support (7) at the front end of the main shaft (6), two groups of bearing groups (8) which are arranged on the bearing support (7) in a left-right symmetrical mode, an adjusting sleeve (9) which is arranged at the inner rear part of the sleeve (5) and can be adjusted in position back and forth, a locking nut (10) at the rear end of the main shaft (6); the main shaft (6) is a stepped rod with a large front part and a small rear part, the front part of the main shaft is in clearance fit with the inner wall of the sleeve (5), the rear part of the main shaft passes through the adjusting sleeve (9) backwards, and the rear end of the main shaft is provided with a screw rod (12) and is in threaded connection with the locking nut (10); the locking nut (10) is abutted against the rear side of the adjusting sleeve (9), the damping spring (11) is sleeved in the middle of the main shaft (6) and is positioned between the stepped surface (22) of the main shaft (6) and the front side of the adjusting sleeve (9); the two groups of bearing groups (8) are respectively abutted against the rear side of the half shaft (13) and are composed of two bearings (14) which are arranged in an up-down symmetrical mode, and the two bearings (14) are respectively arranged in the left-right direction and are respectively abutted against the upper portion and the lower portion of the rear side of the half shaft (13).

2. The lathe support for the automobile half shafts as claimed in claim 1, wherein the bottom plate (1) is placed on the upper surface of the workbench, the front side and the rear side of the bottom plate are respectively provided with fixing blocks (15) matched with the front side and the rear side of the workbench, and the fixing blocks (15) are inclined blocks matched with the workbench and abut against the corresponding front side or the rear side of the workbench.

3. The lathe support for the automotive half shafts as claimed in claim 1, wherein a turntable (16) is coaxially arranged at the rear end of the adjusting sleeve (9), and a handle (17) is arranged on the turntable (16).

4. The lathe support for the automotive half-shafts according to claim 1, characterized in that the rear portion of the sleeve (5) is coaxially provided with a stepped hole (18) for mounting the adjusting sleeve (9), and the rear end face thereof is coaxially provided with a threaded sleeve (19); the threaded sleeve (19) is welded and fixed on the sleeve (5); the front part of the adjusting sleeve (9) is positioned in the stepped hole (18), and the outer wall of the adjusting sleeve is provided with threads which are in threaded connection with the threaded sleeve (19); the rear part of the main shaft (6) is in clearance fit with the inner wall of the adjusting sleeve (9).

5. The lathe support for the automobile half shaft is characterized in that the vertical plate (2) is arranged in the front-back direction, the lifting plate (3) is arranged on the left side or the right side of the vertical plate (2) and four oblong holes (20) are arranged on the lifting plate in a rectangular shape, the oblong holes (20) are arranged in the vertical direction, four through holes corresponding to the oblong holes (20) are formed in the vertical plate (2), and four fixing bolts (21) respectively penetrate through the four oblong holes (20) and the corresponding through holes and are matched with nuts to fix the vertical plate (2) and the lifting plate (3) together.

6. The lathe support for automotive axle shafts according to claim 1, characterized in that the distance between the two sets of bearing sets (8) is 40-70 mm.