CN218254943U - Torsion bar press-fitting device for automobile electric steering gear - Google Patents

Abstract

The utility model provides a pressure equipment device of torsion bar for auto electric steering ware, including pressure equipment subassembly, crimping subassembly and fixed subassembly, the top of fixed subassembly is equipped with the crimping subassembly. The press-fitting component and the fixing component are horizontally arranged on the top surface of the same substrate. The fixed component comprises a clamping sleeve, the swing shaft penetrates through the notch and is fixedly connected with the clamping sleeve, at least two clamping heads are arranged in an inner cavity of the clamping sleeve, the clamping heads are slidably connected with the clamping sleeve, a plurality of first compression springs are arranged between the clamping heads, a plurality of second compression springs are arranged at the bottom of the clamping sleeve, and cushion blocks are arranged at the bottoms of the second compression springs and the clamping heads. The utility model discloses a pressure equipment mechanism has solved the problem of the unable clamping pressure equipment of long and thin torsion bar, has reduced intensity of labour, has improved product quality and production efficiency.

Description

Torsion bar press-fitting device for automobile electric steering gear

Technical Field

The utility model relates to an electric steering gear technical field specifically indicates a pressure equipment device of torsion bar for auto electric steering gear.

Background

The electric steering gear of the car belongs to the part of mass production, the torsion bar is the core part of the electric steering gear of the car, connect input, output shaft and transmit the torque through it, every set of steering gear needs to use the torsion bar, the press fitting mode commonly used at present is: firstly, the torsion bar is in interference connection with the input shaft, and then the torsion bar is inserted into the output shaft and is fixedly connected with the output shaft through the stop pin.

The torsion bar is made of an elastic material and is easy to deflect in the press fitting process, so that the coaxiality between the torsion bar and the lower part of the input shaft can not be ensured to meet the design requirement in the press fitting process, the torsion bar is pressed in an interference fit manner, the middle part of the torsion bar is bent, the clamping and the press fitting can not be carried out, the performance of a steering gear is seriously influenced, the steering gear is scrapped, and the production quality of a product is reduced by adopting a common press fitting method.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure equipment device of torsion bar for auto electric steering ware has solved the problem of the unable clamping pressure equipment of long and thin torsion bar, has reduced intensity of labour, has improved product quality and production efficiency.

The technical scheme is as follows: the utility model provides a pressure equipment device of torsion bar for auto electric steering ware, includes the pressure equipment subassembly, its characterized in that: the press fitting component is in transmission connection with a fixing component, a sleeve is further arranged between the press fitting component and the fixing component, and a compression joint component is further arranged above the fixing component.

Specifically, pressure equipment subassembly, fixed subassembly, sleeve all level set up in the top surface of same base plate, the top surface of base plate still fixes and is equipped with the pivot mount pad, telescopic top surface can be dismantled through the bolt and be equipped with the gland, the pressure equipment subassembly with the connection can be dismantled to fixed subassembly.

Particularly, the press fitting assembly further comprises an air cylinder, a guide rod is output by the air cylinder in a transmission mode, the guide rod is opposite to one end of the air cylinder, a swing rod is arranged at one end of the guide rod in a rotating mode, a rotating shaft is arranged in an upper inner cavity of the rotating shaft mounting seat in a rotating mode, the two ends of the rotating shaft are fixedly connected with the upper portion of the swing rod, a pressing rod is further embedded in the rotating shaft, the pressing rod is opposite to one end of the rotating shaft, a swing shaft is arranged in the rotating mode, and a notch is formed in the sleeve.

Particularly, the fixing assembly further comprises a clamping sleeve, the swing shaft penetrates through the notch to be fixedly connected with the clamping sleeve, at least two clamping heads are arranged in an inner cavity of the clamping sleeve, the clamping heads are slidably connected with the clamping sleeve, a plurality of first compression springs are arranged between the clamping heads, a plurality of second compression springs are arranged at the bottom of the clamping sleeve, and cushion blocks are arranged at the bottoms of the second compression springs and the clamping heads.

Specifically, the crimping subassembly includes the lathe main shaft, the fixed joint in lower part of lathe main shaft is provided with the pressure head, the inside of going up the pressure head is inlayed and is had fixed magnet.

Has the advantages that: the utility model discloses a press fitting mechanism has solved the problem of the unable clamping pressure equipment of long and thin torsion bar. The workpiece clamping is convenient and quick, the device has an automatic clamping function, the workpiece can be placed only without other clamping operation, and automatic production can be realized by equipping a manipulator; the labor intensity is reduced, and the product quality and the production efficiency are improved.

Drawings

Fig. 1 is a schematic sectional structure view of the overall structure of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of the crimping assembly of the present invention;

fig. 3 is a schematic sectional view of the connection between the torsion bar and the gear shaft according to the present invention;

fig. 4 is a schematic structural view of the press-fitting assembly of the present invention;

fig. 5 is a schematic sectional view of the fixing assembly of the present invention.

In the figure: 1. a crimping assembly; 2. a fixing component; 3. a gear shaft; 4. a torsion bar; 5. a substrate; 6. pressing the assembly; 101. a machine tool spindle; 102. an upper pressure head; 103. fixing a magnet; 201. a cylinder; 2011. a guide bar; 202. a swing rod; 203. a rotating shaft; 204. a pressure lever; 205. a pendulum shaft; 206. a gland; 207. a rotating shaft mounting base; 208. a sleeve; 209. a chuck; 210. a jacket; 211. a first compression spring; 212. a bolt; 213. a cushion block; 214. a second compression spring; 215. a notch.

Detailed Description

The invention will be further described with reference to the following drawings and detailed description:

in the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "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 the 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.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Example (b):

as shown in fig. 1-5: the utility model provides a pressure equipment device of torsion bar for auto electric steering ware, includes pressure equipment subassembly 6, its characterized in that: the press fitting component 6 is in transmission connection with a fixing component 2, a sleeve 208 is further arranged between the press fitting component 6 and the fixing component 2, and a crimping component 1 is further arranged above the fixing component 2.

Preferably, the press-fitting assembly 6, the fixing assembly 2 and the sleeve 208 are all horizontally arranged on the top surface of the same substrate 5, the top surface of the substrate 5 is further fixedly provided with a rotating shaft mounting seat 207, the top surface of the sleeve 208 is detachably provided with a pressing cover 206 through a bolt 212, and the press-fitting assembly 6 is detachably connected with the fixing assembly 2.

Specifically, pressure equipment subassembly 6 still includes cylinder 201, cylinder 201 transmission output has guide arm 2011, guide arm 2011 is relative the one end of cylinder 201 is rotated and is equipped with pendulum rod 202, the upper portion inner chamber of pivot mount pad 207 rotates and is equipped with pivot 203, just the both ends of pivot 203 with the upper portion fixed connection of pendulum rod 202, the depression bar 204 has still been inlayed on the pivot 203, the depression bar 204 is relative the one end of pivot 203 is rotated and is equipped with pendulum shaft 205, notch 215 has still been seted up to sleeve 208.

Specifically, the fixing assembly 2 further includes a jacket 210, the pendulum shaft 205 passes through the slot 215 and is fixedly connected with the jacket 210, at least two chucks 209 are arranged in an inner cavity of the jacket 210, the chucks 209 are slidably connected with the jacket 210, a plurality of first compression springs 211 are arranged between the chucks 209, a plurality of second compression springs 214 are arranged at the bottom of the jacket 210, and cushion blocks 213 are arranged at the bottoms of the second compression springs 214 and the chucks 209.

Preferably, the crimping assembly 1 comprises a machine tool spindle 101, an upper pressure head 102 is fixedly clamped at the lower part of the machine tool spindle 101, and a fixed magnet 103 is embedded inside the upper pressure head 102.

The working principle is as follows: when the cylinder 201 drives the guide rod 2011 to shorten, the swing rod 202 moves forwards to drive the rotating shaft 203 to rotate clockwise, the pressure rod 204 is lifted to drive the swing shaft 205 to move upwards, meanwhile, the clamping sleeve 210 moves upwards along with the swing shaft 205, the clamping heads 209 move transversely and separately under the action of the first compression spring 211, and the clamping heads 209 are opened.

In use, the torsion bar 4 is inserted into the middle of the collet 209 and the gear shaft 3 is mounted on the upper ram 102 to be attracted by the fixed magnet 103. After the installation is finished, the air cylinder 201 is ventilated, the guide rod 2011 extends out, the swing rod 202 is pushed to drive the pressure rod 204 to press downwards through the rotating shaft 203, the swing rod 202 acts on the swing shaft 205, the swing shaft 205 is fixedly connected with the jacket 210, the swing shaft 205 moves downwards together with the jacket 210, the jacket 210 and the chuck 209 are in taper fit, the chuck 209 is closed when the jacket 210 moves downwards, the torsion bar 4 is clamped, then the machine tool spindle 101 presses downwards, the upper pressure head 102 installed on the machine tool spindle 101 presses downwards with the gear shaft 3, and the upper end of the torsion bar 4 presses the gear shaft 3.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims (5)

1. The utility model provides a pressure equipment device of torsion bar for auto electric steering ware, includes the pressure equipment subassembly, its characterized in that: the press fitting component is in transmission connection with a fixing component, a sleeve is further arranged between the press fitting component and the fixing component, and a compression joint component is further arranged above the fixing component.

2. A press-fitting device for a torsion bar for an electric power steering apparatus of an automobile according to claim 1, wherein: the press fitting assembly, the fixing assembly and the sleeve are horizontally arranged on the top surface of the same base plate, a rotating shaft mounting seat is fixedly arranged on the top surface of the base plate, a gland is detachably arranged on the top surface of the sleeve through a bolt, and the press fitting assembly is detachably connected with the fixing assembly.

3. A press-fitting device for a torsion bar for an electric power steering apparatus of an automobile according to claim 2, wherein: the press fitting assembly further comprises an air cylinder, a guide rod is output through the air cylinder in a transmission mode, the guide rod is opposite to one end of the air cylinder, a swing rod is arranged at one end of the air cylinder in a rotating mode, a rotating shaft is arranged in an upper inner cavity of the rotating shaft mounting seat in a rotating mode, the two ends of the rotating shaft are fixedly connected with the upper portion of the swing rod, a pressing rod is further embedded in the rotating shaft, the pressing rod is opposite to one end of the rotating shaft, a swing shaft is arranged in the rotating mode, and a notch is formed in the sleeve.

4. A press-fitting device for a torsion bar for an electric power steering apparatus of an automobile according to claim 3, wherein: the fixing assembly further comprises a clamping sleeve, the swing shaft penetrates through the notch and is fixedly connected with the clamping sleeve, at least two clamping heads are arranged in an inner cavity of the clamping sleeve, the clamping heads are slidably connected with the clamping sleeve, a plurality of first compression springs are arranged between the clamping heads, a plurality of second compression springs are arranged at the bottom of the clamping sleeve, and cushion blocks are arranged at the bottoms of the second compression springs and the clamping heads.

5. A press-fitting apparatus for a torsion bar for an electric power steering apparatus of an automobile according to any one of claims 1 to 4, wherein: the crimping component comprises a machine tool spindle, an upper pressing head is fixedly clamped and connected to the lower portion of the machine tool spindle, and a fixed magnet is embedded in the upper pressing head.

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