CN216098335U

CN216098335U - Axle fastening device

Info

Publication number: CN216098335U
Application number: CN202122161058.2U
Authority: CN
Inventors: 吴志强; 莫道远; 蓝天璜; 刘海涛
Original assignee: Guangdong Fuwa Engineering Manufacturing Co Ltd
Current assignee: Guangdong Fuwa Engineering Manufacturing Co Ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-03-22
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses an axle buckling device which is arranged on a machine tool and used for positioning an axle, wherein the outer peripheral wall of a shaft head of the axle is provided with a key groove, and the axle buckling device comprises: the base is fixed on a drive plate of the machine tool and is positioned on the outer side of the top of the machine tool; the elastic piece is connected to the base; the shifting piece is connected to the base in a relatively rotating mode and connected with the elastic piece, the shifting piece can be driven by the driving plate to rotate around the periphery of the shaft head, a pivoting part in rotating connection with the base is arranged at the pivoting end of the shifting piece, and a clamping part abutted against the outer peripheral wall of the shaft head extends towards the tip at the clamping end of the shifting piece; when the clamping part is driven by the shifting piece to rotate around the periphery of the shaft head to the key groove, the clamping part rotates inwards around the pivoting part under the elastic action of the elastic piece to be clamped with the key groove, namely, the axle is automatically clamped with the shifting piece to carry out radial limiting, the collision between the axle and the shifting piece during feeding and discharging can be avoided, and therefore the production safety is improved, the structure is simple, and the clamping operation is simple and fast.

Description

Axle fastening device

Technical Field

The utility model relates to the technical field of axle processing machine tool components, in particular to an axle buckling device.

Background

Numerically control grinder carries out abrasive machining to the car axletree, need carry out the machine tooling again after the axletree positioner through numerically control grinder fixes a position the axletree, current axletree positioner includes the driver plate, be fixed in top and driving lever on the driver plate, top and axletree internal fixation and both are coaxial in order to push up the axletree, the driving lever is fixed with the epaxial braking bottom plate of axletree, make numerically control grinder's drive driver plate, axletree and top three synchronous rotation, however, because braking bottom plate distance driver plate is far away, so, can lead to the driving lever longer, when the clamping perhaps takes out the axletree, when unloading, because the upper and lower material level of each axletree has the difference, lead to the driving lever very easily to bump with the axletree and drop, consequently, there is the potential safety hazard in the production and processing process.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model aims to provide the axle buckling device which is high in production safety, simple in structure and simple and direct in clamping operation.

In order to achieve the purpose, the utility model adopts the following technical scheme:

axletree buckle device installs on the lathe for the location axletree, the keyway has been seted up to the spindle nose periphery wall of axletree, axletree buckle device includes:

the base is fixed on the drive plate of the machine tool and is positioned on the outer side of the top of the machine tool;

the elastic piece is connected to the base;

the shifting piece is connected to the base in a relatively rotating mode, is connected with the elastic piece and can be driven by the driving plate to rotate around the periphery of the shaft head, a pivoting part which is connected with the base in a rotating mode is arranged at the pivoting end of the shifting piece, and a clamping part which is abutted against the outer peripheral wall of the shaft head extends towards the tip of the clamping end of the shifting piece; when the buckling part is driven by the shifting piece to rotate around the periphery of the shaft head to the key groove, the buckling part rotates inwards around the pivoting part under the elastic force action of the elastic piece to be clamped with the key groove.

Furthermore, the end face of the buckling part is provided with a buckling surface and a guide surface which is formed by obliquely extending from one end of the buckling surface, which is far away from the pivoting part, to the buckling end.

Furthermore, the clamping end is provided with a connecting arm extending towards the tip, the free end of the connecting arm forms the clamping part, and the thickness of the connecting arm is larger than that of the clamping part.

Furthermore, the clamping part is plate-shaped, two opposite plate surfaces of the clamping part are respectively provided with a groove in a concave mode in the opposite direction, and the grooves extend to the end face of the clamping part towards the tip and penetrate through two opposite side walls of the clamping part along the axial direction of the driving plate.

Furthermore, the base is connected with an adjusting screw rod used for adjusting the distance between the shifting piece and the base, the adjusting screw rod is located between the pivoting end and the clamping end, and the adjusting screw rod supports the shifting piece.

Furthermore, a plurality of mounting holes are formed in the shifting piece, the mounting holes are arranged along the axial direction of the driving plate, the elastic piece is a spring, the number of the springs is multiple, and one spring is mounted in one mounting hole.

Furthermore, the base comprises a fixed seat fixed on the drive plate, a limit groove is concavely arranged on the outer surface of the fixed seat far away from the tip, two ends of the limit groove extend along the axial direction of the drive plate and penetrate through two opposite outer side walls of the fixed seat, the shifting piece is a shifting piece, the shifting piece is connected in the limit groove in a relatively rotating mode through a pin shaft, and the buckling part extends out of the limit groove.

Furthermore, the base comprises a base plate fixed on the driving plate, the fixed seat is fixed on the base plate, a cover plate covers the outer surface of the fixed seat far away from the tip, the cover plate partially covers the limiting groove, one end of the elastic part is connected to the cover plate, and the other end of the elastic part is connected to the shifting part.

The connecting seat and the base are respectively positioned on two opposite sides of the tip, the positioning rod is positioned between the driving plate and the shaft head, and the free end of the positioning rod is connected with the tip.

The axle buckling device is connected with the shifting piece on the base in a relative rotation mode through the arrangement, the shifting piece is connected with the elastic piece and can be driven by the driving plate to rotate around the periphery of the axle head, when the buckling part is driven by the shifting piece to rotate around the axis of the driving plate to the key groove, the buckling part rotates inwards around the pivoting part under the action of the elastic force of the elastic piece to be buckled with the key groove, namely, the axle is automatically buckled with the shifting piece to perform radial limiting, so that the axle, the driving plate and the tip rotate synchronously, on one hand, the length of the shifting piece can be shortened, the collision between the axle and the shifting piece during loading and unloading is avoided, the production safety is improved, on the other hand, the shifting piece and the axle are automatically buckled by utilizing the relative motion between the shifting piece and the axle, the structure is simple, the clamping operation is simple, and the automatic clamping is realized.

Drawings

FIG. 1 is a partial cross-sectional view of the axle buckle assembly of the present invention in use;

FIG. 2 is an enlarged view of a portion a of FIG. 1;

fig. 3 is a three-dimensional view of the dial of fig. 1.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 to 3, the utility model provides an axle fastening device, which is mounted on a machine tool, wherein the machine tool is a numerically controlled grinder, the axle fastening device is used for positioning an axle 1 of a trailer, a keyway 11 is formed in the outer peripheral wall of a spindle head of the axle 1, and an inner hole of the spindle head is sleeved on a tip 6 of the numerically controlled grinder. The axle buckle device includes: base 2, elastic component 3 and plectrum 4 all connect on base 2.

As shown in fig. 1 and 2, the base 2 is fixed to a dial 5 of the machine tool, and is located outside a center 6 of the machine tool, and the center 6 and the dial 5 are coaxial and rotate synchronously with each other by a drive device of the numerically controlled grinder. As shown in fig. 3, the base 2 includes a fixing seat 21 fixed on the dial 5 by a screw or a bolt, a limit groove 211 is concavely provided on the outer surface of the fixing seat 21 away from the center 6, two ends of the limit groove 211 extend along the axial direction of the dial 5 and penetrate through two opposite outer side walls of the fixing seat 21, and a fitting space can be provided for the dial 4 by setting the limit groove 211. Specifically, the base 2 includes a base plate 22 fixed on the dial 5 by screws or bolts, the fixing seat 21 is fixed on the base plate 22 by screws, and the outer surface of the fixing seat 21 away from the tip 6 is covered with a cover plate 23 for connecting the elastic member 3, and the cover plate 23 partially covers the limiting groove 211.

As shown in fig. 1 and fig. 2, the elastic member 3 is connected to the base 2, in this embodiment, one end of the elastic member 3 is connected to the cover plate 23, and the other end of the elastic member is connected to the dial 4, the elastic member 3 is a spring, and the number of the springs is plural, and the plural springs are arranged to provide sufficient elastic force to the dial 4, so that the dial 4 normally works, of course, in other embodiments, the springs may also be other components with elasticity, for example, the elastic member 3 is rubber, etc.

As shown in fig. 1 and 2, the dial 4 is connected to the base 2 in a relatively rotatable manner and connected to the elastic member 3, and driven by the dial 5 through the fixing seat 21 to rotate around the outer periphery of the spindle head, the pivot end 41 of the dial 4 is provided with a pivot portion 411 in rotatable connection with the base 2, and the engaging end 42 of the dial 4 extends toward the tip 6 to form a fastening portion 421 abutting against the outer peripheral wall of the spindle head. When the fastening portion 421 is driven by the dial 4 to rotate around the outer circumference of the shaft head to the key slot 11, the fastening portion 421 rotates inwards around the pivot portion 411 under the elastic force of the elastic member 3 to be fastened with the key slot 11. Specifically, when the axle 1 is clamped, the axle hole of the axle head is sleeved on the tip 6, then the tip 6 abuts against the axle 1 along the axial direction of the axle hole, the driving device is started to drive the driving plate 5 and the tip 6 to rotate, meanwhile, the tip 6 drives the axle 1 to rotate, and when the friction force between the axle hole and the tip 6 is enough to enable the axle 1 and the tip 6 to synchronously rotate, the clamping part 421 is not clamped with the key groove 11, namely, the driving part 4 is not connected with the axle 1. When the friction force between the shaft hole and the tip 6 is not enough to enable the axle 1 and the tip 6 to synchronously rotate, the axle 1 is static, the tip 6, the dial 4 and the dial plate 5 synchronously rotate, namely, the axle 1 cannot be driven by the tip 6 to rotate, so that the dial 4 and the axle 1 generate relative rotation, in the relative rotation process of the dial 4 and the axle 1, the dial 4 rotates around the periphery of the axle head by taking the axis of the dial plate 5 as a rotating axis, when the buckling part 421 is driven by the dial 4 to rotate around the axis of the dial plate 5 to the key groove 11, the buckling part 421 rotates inwards around the pivoting part 411 under the elastic force action of the elastic part 3 to be buckled with the key groove 11, namely, the axle 1 and the dial 4 are automatically buckled to carry out radial limiting, so that the axle 1, the dial 5 and the tip 6 synchronously rotate, on one hand, the length of the dial 4 can be shortened, so that the axle 1 and the dial 4 are prevented from colliding during loading and unloading, and the production safety is improved, on the other hand, the shifting piece 4 and the axle 1 are automatically clamped by relative movement, so that the structure is simple, the clamping operation is simple and convenient, and automatic clamping is realized. In addition, on one hand, due to different requirements of axle shafts 1 with different specifications on clamping force (namely friction force), and on the other hand, after the centre 6 is used for a long time, a gap is generated between the centre and the axle hole or the tightening force is insufficient, so that the friction force between the centre and the axle hole is reduced or no friction force exists, and based on the situation, the shifting piece 4 can select whether to be connected with the axle shaft 1 according to the friction force between the axle hole and the centre 6, therefore, the axle clamping device can be flexibly used according to the actual situation.

As shown in fig. 1 and 2, in order to simplify the structure, the dial 4 is provided with a plurality of mounting holes 44, the mounting holes 44 are uniformly arranged along the axial direction of the dial 5, a spring is mounted in one mounting hole 44, and by arranging the mounting holes 44 uniformly arranged along the axial direction of the dial 5, the spring is uniformly distributed, so that the dial 4 is subjected to uniform elastic force. In this embodiment, the dial 4 is a dial piece, the dial piece is relatively rotatably connected in the limiting groove 211 through the pin 45, and the fastening portion 421 extends out of the limiting groove 211 to be fastened with the key groove 11. Specifically, the engaging end 42 integrally extends toward the tip 6 to form a connecting arm 420, a free end of the connecting arm 420 forms a locking portion 421, and the thickness of the connecting arm 420 is greater than that of the locking portion 421 to improve the structural strength of the dial 4. In the process of sleeving the inner hole of the spindle nose on the tip 6, the outer peripheral wall of the spindle nose is always abutted against the buckling part 421, so that in order to smoothly sleeve the spindle nose on the tip 6, the end surface of the buckling part 421 is provided with a guide surface 4212, specifically, the end surface of the buckling part 421 is provided with a clamping surface 4211 and extends obliquely from one end of the clamping surface 4211 far away from the pivot joint part 411 to the clamping end 42 to form a guide surface 4212, and the inner hole of the guide spindle nose of the guide surface 4212 is smoothly sleeved on the tip 6. The fastening portion 421 is plate-shaped, two opposite plate surfaces of the fastening portion 421 are respectively provided with a groove 4213 in a concave manner, the groove 4213 extends to an end surface of the fastening portion 421 towards the center 6 and penetrates through two opposite side walls of the fastening portion 421 along the axial direction of the dial 5, and the fastening portion 421 is matched with the key groove 11 by the arrangement of the groove 4213.

As shown in fig. 1 and 2, in order to facilitate adjusting the depth of the locking portion 421 locked into the key slot 11, in this embodiment, the base 2 is connected with an adjusting screw 43 for adjusting the vertical distance of the dial 4 relative to the base 2, the adjusting screw 43 is located between the pivot end 41 and the locking end 42, and the adjusting screw 43 supports the dial 4, so as to ensure that the dial 4 is kept at the normal working position. In addition, when the numerically controlled grinder processes axles 1 of different specifications, since the relative positions of the key groove 11 and the dial 4 of the axles 1 of different specifications are different, the dial 4 can be adjusted to a required position by rotating the adjusting screw 43, so that the application range of the axle locking device is expanded.

As shown in fig. 1 and 2, when the driving force provided to the axle 1 is insufficient, the axle 1 cannot normally rotate, and in order to prevent this, sufficient driving force needs to be provided to the axle 1, therefore, the axle buckle device further includes a connecting seat 7 fixedly connected to the dial 5 and the tip 6 by screws or bolts and a positioning rod 71 fixed to the connecting seat 7, the connecting seat 7 and the base 2 are respectively located at two opposite sides of the tip 6, the positioning rod 71 is located between the dial 5 and the axle head, and the free end of the positioning rod 71 is connected to the tip 6 by screws.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims

1. Axletree buckle device installs on the lathe for the location axletree, a serial communication port, the keyway has been seted up to the spindle nose periphery wall of axletree, axletree buckle device includes:

the elastic piece is connected to the base;

2. The axle locking device according to claim 1, wherein the locking portion has an end surface having an engaging surface and a guiding surface extending from an end of the engaging surface away from the pivot portion toward the engaging end.

3. The axle buckle device according to claim 1, wherein a connecting arm integrally extends from the engaging end toward the tip, a free end of the connecting arm forms the buckle portion, and a thickness of the connecting arm is greater than a thickness of the buckle portion.

4. The axle shaft engaging device according to claim 1, wherein the engaging portion has a plate shape, and opposite plate surfaces of the engaging portion are recessed with a groove facing each other, the groove extending toward the tip to an end surface of the engaging portion and penetrating through opposite side walls of the engaging portion in an axial direction of the dial.

5. The axle buckle device according to claim 1, wherein an adjustment screw for adjusting a distance of the dial relative to the base is connected to the base, the adjustment screw is located between the pivot end and the engagement end, and the adjustment screw supports the dial.

6. The axle-shaft engaging apparatus according to claim 1, wherein the dial has a plurality of mounting holes formed therein, the plurality of mounting holes being arranged in an axial direction of the dial, the elastic member is a plurality of springs, and one of the springs is mounted in one of the mounting holes.

7. The axle shaft engaging device according to claim 1, wherein the base includes a fixing seat fixed to the driving plate, a limiting groove is concavely formed on an outer surface of the fixing seat away from the center, two ends of the limiting groove extend in an axial direction of the driving plate and penetrate through two opposite outer side walls of the fixing seat, the shifting member is a shifting piece, the shifting piece is connected to the limiting groove through a pin shaft in a relatively rotatable manner, and the engaging portion extends out of the limiting groove.

8. The axle bracket of claim 7, wherein the base includes a base plate fixed to the dial, the holder is fixed to the base plate, and an outer surface of the holder remote from the tip is covered with a cover plate that partially covers the stopper groove, and the resilient member has one end connected to the cover plate and the other end connected to the dial member.

9. The axle bracket of claim 1, further comprising a connecting seat secured to the driver plate and a positioning rod secured to the connecting seat, wherein the connecting seat and the base are located on opposite sides of the tip, respectively, the positioning rod is located between the driver plate and the axle head, and a free end of the positioning rod is connected to the tip.