Positioning device for torque sensor

Abstract

The utility model provides a positioning device for a torque sensor, which comprises a working table, a positioning table is fixed at the upper end of the working table, a horizontal positioning hole is arranged on the positioning table, and a first positioning assembly, a second positioning assembly and a clamping assembly are sequentially arranged on the working table on the right side of the positioning hole. The first positioning assembly and the second positioning assembly each comprise a horizontally-sliding positioning rod, an elastically-telescopic positioning block is arranged at the upper end of each positioning rod, a positioning spacer block is fixed to the right side of the positioning rod of the first positioning assembly, and the clamping assembly comprises a horizontally-sliding clamping base. According to the utility model, rapid positioning of the positioning gaps of the rotating assembly and the magnet assembly is realized, and when the torque sensor is assembled, the relative position of the rotating assembly and the magnet assembly is automatically and accurately controlled.

Description

Technical Field

[0001] This utility model relates to the field of torque sensor technology, and in particular to a positioning device for a torque sensor. Background Technology

[0002] The torque sensor comprises a rotating assembly and a magnet assembly. The magnet assembly is connected to the output shaft, and the rotating assembly is connected to the input shaft. A torsion bar is positioned between the input and output shafts. The relative position of the magnet assembly and the rotating assembly determines the duty cycle and phase of the sensor's output signal. When the steering wheel is in the straight-line position, the relative position of the magnet assembly and the rotating assembly is at the center, and the output signal duty cycle is 50%. When the steering wheel is turned left or right, the magnet ring assembly and the rotating body generate torque, resulting in a relative angular displacement, and the output signal duty cycle ranges from 12.5% ​​to 87.5%.

[0003] Both the rotating component and the magnet component have positioning notches on their shaft fixing sleeves. The position of the gear ring of the rotating component is based on its positioning notch, and the magnetic pole of the magnet ring of the magnet component is positioned based on its positioning notch. How to quickly position and assemble the torque sensor based on the positioning notch is also a problem that needs to be solved. Utility Model Content

[0004] This invention proposes a positioning device for a torque sensor, which enables rapid positioning of the positioning notches of the rotating component and the magnet component, and automatically and accurately controls the relative positions of the rotating component and the magnet component during the assembly of the torque sensor.

[0005] The technical solution of this utility model is implemented as follows: A positioning device for a torque sensor includes a worktable, a positioning platform fixed at the upper end of the worktable, a horizontal positioning hole provided on the positioning platform, a first positioning component, a second positioning component and a clamping component sequentially arranged on the worktable to the right of the positioning hole, the first positioning component and the second positioning component both include a horizontally sliding positioning rod, the upper end of the positioning rod is provided with an elastically telescopic positioning block, a positioning interval block is fixed to the right side of the positioning rod of the first positioning component, and the clamping component includes a horizontally sliding clamping seat.

[0006] Furthermore, the clamping seat includes a horizontally sliding lower arc-shaped seat, and an openable upper arc-shaped seat is provided at the upper end of the lower arc-shaped seat.

[0007] Furthermore, a coaxial positioning groove is provided on the outer side of the horizontal positioning hole.

[0008] Furthermore, a horizontal guide rail is provided at the upper end of the worktable, and the lower ends of the positioning rod and the clamping seat slide along the horizontal guide rail.

[0009] Furthermore, a vertical lifting cylinder is fixed to one end of the lower arc-shaped seat, and an upper arc-shaped seat is fixed to the upper end of the lifting cylinder.

[0010] The beneficial effects of this utility model are:

[0011] This invention uses the positioning hole and the first positioning component to position the output shaft and the magnet component through the positioning notch. The clamping seat and the second positioning component are used to position the input shaft and the rotating component through the positioning notch. Then, the magnet component is oriented and placed inside the rotating component. During assembly, the relative position of the rotating component and the magnet component is automatically and accurately controlled so that it is in the positive center position and the duty cycle is controlled between 48% and 52%. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the positioning hole structure;

[0015] Figure 3 This is a schematic diagram of the structure of the first positioning component;

[0016] Figure 4 This is a schematic diagram of the clamping assembly.

[0017] Figure 5 This is a schematic diagram of the torque sensor structure;

[0018] Figure 6 This is a diagram showing the combination of the rotating component and the magnet component.

[0019] Workbench 1, positioning table 2, positioning hole 3, positioning groove 4, boss 5, first positioning component 6, second positioning component 7, clamping component 8, positioning rod 9, positioning block 10, guide rod 11, support spring 12, rotating component 13, magnet component 14, positioning notch 15, output shaft 16, input shaft 17, torsion bar 18, positioning spacer block 19, lower arc seat 20, upper arc seat 21, lifting cylinder 22, horizontal guide rail 23. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] like Figure 1 and 5 As shown, a positioning device for a torque sensor includes a worktable 1, with a positioning platform 2 fixed to the upper end of the worktable 1. The positioning platform 2 has a horizontal positioning hole 3, and a coaxial positioning groove 4 is provided on the outer side of the horizontal positioning hole 3. The output shaft 16 of the torque sensor is horizontally inserted into the positioning hole 3, and the positioning groove 4 corresponds to a boss 5 on the output shaft 16, with the boss 5 placed inside the positioning groove 4.

[0023] The worktable 1 on the right side of the positioning hole 3 is provided with a first positioning component 6, a second positioning component 7 and a clamping component 8. The first positioning component 6, the second positioning component 7 and the clamping component 8 are on the same horizontal straight line. The first positioning component 6 and the second positioning component 7 both include a horizontally sliding positioning rod 9. The upper end of the positioning rod 9 is provided with a vertically elastically telescopic positioning block 10. The lower end of the positioning block 10 is fixed with a guide rod 11. The lower end of the guide rod 11 passes through the support spring 12 and slides inside the positioning rod 9.

[0024] like Figure 5 and 6 As shown, the torque sensor includes a rotating assembly 13 and a magnet assembly 14. Both the rotating assembly 13 and the magnet assembly 14 have positioning notches 15 on their shaft fixing sleeves. The magnet assembly 14 is connected to the output shaft 16, and the rotating assembly 13 is connected to the input shaft 17. A torsion bar 18 is provided between the output shaft 16 and the input shaft 17. A first positioning component 6 engages with the positioning notch 15 of the magnet assembly 14, and a second positioning component 7 engages with the positioning notch 15 of the rotating assembly 13.

[0025] A positioning spacer block 19 is fixed to the right side of the positioning rod 9 of the first positioning component 6. The positioning spacer block 19 limits the shortest distance between the first positioning component 6 and the second positioning component 7, thereby positioning the position of the magnet component 14 within the rotating component 13.

[0026] The clamping assembly 8 includes a horizontally sliding clamping seat that clamps and supports the input shaft 17. The clamping seat is coaxially arranged with the positioning hole 3.

[0027] The method of using the positioning device is as follows: Place the positioning notch 15 of the magnet assembly 14 on the positioning block 10 of the first positioning assembly 6, and then push the first positioning assembly 6 and the magnet assembly 14 horizontally so that the output shaft 16 is inserted into the positioning hole 3; place the positioning notch 15 of the rotating assembly 13 on the positioning block 10 of the second positioning assembly 7, clamp the input shaft 17, and then push the input shaft 17 and the second positioning assembly 7 so that they move closer to the magnet assembly 14. The positioning rod 9 of the second positioning assembly 7 abuts against the positioning spacer 19 and stops moving. The magnet assembly 14 is placed inside the rotating assembly 13.

[0028] Example 2

[0029] This embodiment is basically the same as Embodiment 1, except that the clamping seat includes a horizontally sliding lower arc-shaped seat 20, and an openable upper arc-shaped seat 21 is provided at the upper end of the lower arc-shaped seat 20. A vertical lifting cylinder 22 is fixed to one end of the lower arc-shaped seat 20, and the upper arc-shaped seat 21 is fixed to the upper end of the lifting cylinder 22. By extending the lifting cylinder 22, the upper arc-shaped seat 21 is moved upward, thereby opening the upper arc-shaped seat 21 and placing the input shaft 17 inside the lower arc-shaped seat 20. Then, the lifting cylinder 22 retracts, causing the upper arc-shaped seat 21 to move downward, clamping the input shaft 17.

[0030] The clamping seat can also be other structures, such as the front end of the upper arc-shaped seat 21 being hinged to the front end of the lower arc-shaped seat 20, the rear end of the upper arc-shaped seat 21 being hinged to a locking bolt, and the rear end of the lower arc-shaped seat 20 being provided with an opening groove, through which the locking bolt passes and is connected to the locking nut. By loosening the locking nut and removing the locking bolt from the opening groove, the upper arc-shaped seat 21 and the lower arc-shaped seat 20 can be opened.

[0031] Example 3

[0032] This embodiment is basically the same as Embodiment 1 or 2, except that a horizontal guide rail 23 is provided at the upper end of the worktable 1, and the lower ends of the positioning rod 9 and the clamping seat slide along the horizontal guide rail 23. The horizontal guide rail 23 limits the movement path of the first positioning component 6, the second positioning component 7 and the clamping seat, so that they move in the same straight line.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning device for a torque sensor comprising a worktable, characterized in that: The upper end of the workbench is fixed with a positioning table, the positioning table is provided with horizontal positioning holes, the workbench right side of the positioning holes is sequentially provided with a first positioning assembly, a second positioning assembly and a clamping assembly, the first positioning assembly and the second positioning assembly all include horizontally sliding positioning rods, the upper end of the positioning rod is provided with an elastic retractable positioning block, the right side of the positioning rod of the first positioning assembly is fixed with a positioning interval block, and the clamping assembly includes a horizontally sliding clamping seat.

2. A positioning device for a torque sensor according to claim 1, characterized in that: The clamping seat includes a horizontally sliding lower arc-shaped seat, and the upper end of the lower arc-shaped seat is provided with an openable upper arc-shaped seat.

3. A positioning device for a torque sensor according to claim 1 or 2, characterized in that: The outer side of the horizontal positioning hole is provided with a coaxial positioning groove.

4. The positioning device for a torque sensor according to claim 1, characterized in that: The upper end of the workbench is provided with a horizontal guide rail, and the lower end of the positioning rod and the clamping seat slides along the horizontal guide rail.

5. The positioning device for a torque sensor according to claim 2, characterized in that: One end of the lower arc-shaped seat is fixed with a jacking cylinder, and the upper end of the jacking cylinder is fixed with an upper arc-shaped seat.

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