CN219094270U

CN219094270U - Jackshaft positioner

Info

Publication number: CN219094270U
Application number: CN202223409955.1U
Authority: CN
Inventors: 任波
Original assignee: Ruhlamat Automation Technologies Suzhou Co Ltd
Current assignee: Ruhlamat Automation Technologies Suzhou Co Ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-05-30
Anticipated expiration: 2032-12-19

Abstract

The utility model discloses a middle shaft positioning device which comprises a clamping mechanism for clamping the bottom of a middle shaft, a rotary driving mechanism for driving the clamping mechanism to rotate, a positioning tool for positioning spline teeth and meshed with the spline teeth, and a movable driving mechanism for driving the positioning tool to move up and down, wherein the clamping mechanism comprises a clamping jaw cylinder, and the clamping jaw cylinder is provided with two opposite clamping jaws and a positioning block positioned between the two clamping jaws and used for positioning the bottom of the middle shaft. According to the intermediate shaft positioning device, the clamping jaw cylinder clamps the intermediate shaft and positions the bottom of the intermediate shaft through the positioning block, so that the intermediate shaft can be stably positioned; the spline teeth can be closely attached to the spline teeth through the positioning tool meshed with the spline teeth, so that the positioning is more stable and firm.

Description

Jackshaft positioner

Technical Field

The utility model relates to an intermediate shaft assembly production line, in particular to an intermediate shaft positioning device in the intermediate shaft assembly production line.

Background

The universal joint transmission shaft is an important part of an electric power steering system of an electric automobile, the universal joint transmission shaft comprises a middle shaft and universal joint forks, the middle shaft of one of the parts of the universal joint transmission shaft needs to be positioned in the process of assembling the universal joint transmission shaft, the two ends of the middle shaft are simply clamped in the former positioning mode, but the clamping and positioning are often not firm because one end of the middle shaft is provided with spline teeth.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model discloses an intermediate shaft positioning device.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme:

the utility model discloses an intermediate shaft positioning device which comprises a clamping mechanism for clamping the bottom of an intermediate shaft, a rotary driving mechanism for driving the clamping mechanism to rotate, a positioning tool for positioning spline teeth and meshed with the spline teeth, and a movable driving mechanism for driving the positioning tool to move up and down, wherein the clamping mechanism comprises a clamping jaw cylinder, and the clamping jaw cylinder is provided with two opposite clamping jaws and a positioning block positioned between the two clamping jaws and used for positioning the bottom of the intermediate shaft.

Preferably, the rotary driving mechanism comprises a first servo speed reducing motor and a rotary air connector connected with the first servo speed reducing motor through a coupler, and the rotary air connector is connected with the bottom of the clamping jaw cylinder.

Preferably, the positioning tool comprises a connecting bracket, a floating positioning shaft sleeve connected with the connecting bracket and a displacement sensor for sensing the position of the floating positioning shaft sleeve, and the displacement sensor is arranged on the connecting bracket.

Further preferably, the floating positioning shaft sleeve comprises a positioning shaft sleeve body, a floating column, a spring, a guide sleeve, a mounting plate and a connecting plate, wherein the mounting plate is fixedly arranged below the connecting bracket, the guide sleeve is arranged in the mounting plate, the floating column penetrates through the connecting plate and the guide sleeve, the bottom of the floating column is fixedly connected with the upper part of the connecting plate, the lower part of the connecting plate is fixedly connected with the positioning shaft sleeve body through a coupler, and the spring is sleeved on the part of the floating column between the mounting plate and the connecting plate.

Further preferably, an induction piece is fixedly arranged at the head part of the top end of the floating column, and the induction piece is matched with the displacement sensor body.

Preferably, the movable driving mechanism comprises a second servo speed reducing motor, a Z-axis linear module connected with the second servo speed reducing motor and an X-axis linear module connected with the Z-axis linear module, and the connecting support is fixedly connected with the X-axis linear module.

Preferably, the X-axis linear module further comprises a base plate, wherein the base plate is fixedly provided with a guide rail which is vertically arranged, and the X-axis linear module is in sliding connection with the guide rail.

Compared with the prior art, the utility model has at least the following advantages:

according to the intermediate shaft positioning device, the clamping jaw cylinder clamps the intermediate shaft and positions the bottom of the intermediate shaft through the positioning block, so that the intermediate shaft can be stably positioned; the spline teeth can be closely attached to the spline teeth through the positioning tool meshed with the spline teeth, so that the positioning is more stable and firm.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below.

FIG. 1 is a schematic diagram of an intermediate shaft positioning device according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a clamping mechanism and a rotary drive mechanism according to an embodiment of the present utility model;

FIG. 3 is a schematic structural diagram of a positioning tool according to an embodiment of the present utility model;

fig. 4 is a schematic diagram of a partial structure of a positioning tool according to an embodiment of the present utility model.

Detailed Description

The present utility model is described in further detail below with reference to examples and drawings to enable those skilled in the art to practice the same and to refer to the description.

Referring to fig. 1 to 4, an embodiment of the utility model discloses a positioning device for an intermediate shaft, which comprises a clamping mechanism 1 for clamping the bottom of the intermediate shaft, a rotary driving mechanism 2 for driving the clamping mechanism 1 to rotate, a positioning tool 3 for positioning spline teeth and meshed with the spline teeth, and a moving driving mechanism 4 for moving the positioning tool 3 up and down with the rotary driving mechanism 2, wherein the clamping mechanism 1 comprises a clamping jaw cylinder 11, and the clamping jaw cylinder 11 is provided with two opposite clamping jaws and a positioning block 12 positioned between the two clamping jaws and used for positioning the bottom of the intermediate shaft.

The rotary driving mechanism 2 comprises a first servo speed reduction motor 21 and a rotary air connector 22 connected with the first servo speed reduction motor 21 through a coupler, and the rotary air connector 22 is connected with the bottom of the clamping jaw cylinder 11.

The positioning tool 3 comprises a connecting bracket 31, a floating positioning shaft sleeve 32 connected with the connecting bracket 31 and a displacement sensor 33 for sensing the position of the floating positioning shaft sleeve 32, wherein the displacement sensor 33 is arranged on the connecting bracket 31.

Specifically, the floating positioning sleeve 32 includes a positioning sleeve body 321, a floating post 322, a spring 323, a guide sleeve 324, a mounting plate 325 and a connecting plate 326, wherein the mounting plate 325 is fixedly arranged below the connecting bracket 31, the guide sleeve 324 is arranged in the mounting plate 325, the floating post 322 passes through the connecting plate 326 and the guide sleeve 324, the bottom of the floating post 322 is fixedly connected with the upper part of the connecting plate 326, the lower part of the connecting plate 326 is fixedly connected with the positioning sleeve body 321 through a coupler 327, and the spring 323 is sleeved on the part of the floating post 322 between the mounting plate 325 and the connecting plate 326. The top head of the floating column 322 is fixedly provided with a sensing piece 331 which is matched with the displacement sensor body.

The moving driving mechanism 4 comprises a second servo speed reducing motor 41, a Z-axis linear module 42 connected with the second servo speed reducing motor 41 and an X-axis linear module 43 connected with the Z-axis linear module 42, and the connecting bracket 31 is fixedly connected with the X-axis linear module 43.

The intermediate shaft positioning device further comprises a base plate 5, a guide rail 6 which is vertically arranged is fixedly arranged on the base plate 5, and an X-axis linear module 43 is in sliding connection with the guide rail 6. The guide rail 6 plays a guiding role when the X-axis linear module 43 slides on the Z-axis linear module 42.

The working principle of the intermediate shaft positioning device provided by the embodiment of the utility model is as follows:

the bottom of the intermediate shaft is positioned and clamped by the clamping jaws of the clamping jaw cylinder 11, and the bottom center position of the intermediate shaft is positioned by the positioning block 12, so that the intermediate shaft can be stably positioned, and the first servo speed reduction motor 21 drives the intermediate shaft to rotate to a set position; the second servo speed reducing motor 41 drives the X-axis linear module 43 to move downwards on the Z-axis linear module 42, so that the positioning tool 3 is pressed downwards, the positioning tool 3 can elastically float, and whether the tool is meshed with a spline is judged through the floating quantity of the positioning tool 3; finally, the clamping jaw cylinder 11 is driven to rotate through the first servo motor, and then the intermediate shaft is driven to rotate in a single direction, so that the spline tooth part is tightly attached to the positioning tool 3 to be positioned.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intermediate shaft positioning device, which is characterized in that: the clamping mechanism comprises a clamping mechanism used for clamping the bottom of the intermediate shaft, a rotary driving mechanism used for driving the clamping mechanism to rotate, a positioning tool used for positioning spline teeth and meshed with the spline teeth, and a movable driving mechanism used for driving the positioning tool to move up and down, wherein the clamping mechanism comprises a clamping jaw cylinder, and the clamping jaw cylinder is provided with two opposite clamping jaws and a positioning block located between the two clamping jaws and used for positioning the bottom of the intermediate shaft.

2. An intermediate shaft positioning device as defined in claim 1, wherein: the rotary driving mechanism comprises a first servo speed reducing motor and a rotary air connector connected with the first servo speed reducing motor through a coupler, and the rotary air connector is connected with the bottom of the clamping jaw cylinder.

3. An intermediate shaft positioning device as defined in claim 1, wherein: the positioning tool comprises a connecting support, a floating positioning shaft sleeve connected with the connecting support and a displacement sensor for sensing the position of the floating positioning shaft sleeve, wherein the displacement sensor is arranged on the connecting support.

4. A countershaft positioning device according to claim 3, wherein: the floating positioning shaft sleeve comprises a positioning shaft sleeve body, a floating column, a spring, a guide sleeve, a mounting plate and a connecting plate, wherein the mounting plate is fixedly arranged below the connecting bracket, the guide sleeve is arranged in the mounting plate, the floating column penetrates through the connecting plate and the guide sleeve, the bottom of the floating column is fixedly connected with the upper portion of the connecting plate, the lower portion of the connecting plate is fixedly connected with the positioning shaft sleeve body through a coupler, and the spring is sleeved on the portion, between the mounting plate and the connecting plate, of the floating column.

5. An intermediate shaft positioning device as defined in claim 4, wherein: the top head of the floating column is fixedly provided with an induction piece, and the induction piece is matched with the displacement sensor body.

6. A countershaft positioning device according to claim 3, wherein: the movable driving mechanism comprises a second servo speed reducing motor, a Z-axis linear module connected with the second servo speed reducing motor and an X-axis linear module connected with the Z-axis linear module, and the connecting support is fixedly connected with the X-axis linear module.

7. An intermediate shaft positioning device as defined in claim 6, wherein: the X-axis linear module is connected with the guide rail in a sliding mode.