Test fixture for sensor steering device

Abstract

The utility model relates to a test fixture for a steering device of a sensor, which belongs to the field of sensor testing and comprises a three-jaw chuck and a support, a supporting seat is arranged at the bottom of the three-jaw chuck, an embedded block is arranged at the bottom of the supporting seat, a limiting piece is arranged outside the supporting seat, an embedded groove is arranged at the top of the support, and the embedded block is arranged in the embedded groove. The embedded block is slidably connected to the interior of the embedded groove; the limiting piece comprises a sliding plate, and the sliding plate is connected to the outer portion of the supporting base in a sliding mode. According to the test fixture for the sensor steering device, through the design of the embedded groove in the support, the embedded block at the bottom of the support seat can slide into the support seat, and the inverted T-shaped structures of the embedded block and the embedded groove have a vertical limiting effect; the positioning columns can be inserted into the corresponding positioning grooves through the elastic effect of the telescopic springs, the supporting base can be transversely limited so that the three-jaw chuck can be fixed, a plurality of clamps can be conveniently installed, and the coaxiality of the clamps can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to test fixture technical field, concretely is a kind of sensor steering device test fixture. BACKGROUND

[0002] Sensor steering device is a kind of key equipment for detecting and controlling vehicle direction, usually referred to as steering angle sensor, steering angle sensor is mainly used to detect the rotation angle and steering direction of steering wheel, it converts steering angle information into electrical signal output by sensing the change of vehicle steering angle, to help automobile electronic control unit (ECU) issue correct steering instruction, steering angle sensor needs to test sensor in production process to ensure its performance and reliability, and fixture is needed to fix sensor in testing process.

[0003] Current test fixture is mostly single fixture, and test efficiency is low, if multiple sensors need to be detected simultaneously, multiple fixtures need to be installed, and it is difficult to guarantee the coaxiality between fixtures when installing multiple fixtures, which can easily affect the accuracy of test. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of prior art, the utility model provides a kind of sensor steering device test fixture, with the advantages of multiple fixtures can be installed simultaneously and the coaxiality between fixtures can be guaranteed.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of sensor steering device test fixture, including three-jaw chuck and support, the bottom of the three-jaw chuck is equipped with support seat, the bottom of the support seat is equipped with embedding block, the outside of the support seat is provided with limiting piece, the top of the support is equipped with embedding slot, the embedding block is slidably connected in the inside of embedding slot.

[0006] The limiting piece includes sliding plate, the sliding plate is slidably connected in the outside of support seat, the inside of the support seat is equipped with installation slot, the inside of the installation slot is fixedly connected with slide rod, the outside of the slide rod is slidably connected with sliding block, the sliding block is installed on the inner side wall of sliding plate, the outside of the slide rod is equipped with telescopic spring installed on the top of sliding block.

[0007] Further, the four corners of the bottom of the sliding plate are fixedly connected with positioning column, and the positioning column is a cylindrical structure.

[0008] Further, a plurality of positioning grooves are formed in the top of the support, and the positioning grooves are equally distributed in front and back.

[0009] Further, the embedding slot and the embedding block are both inverted "T" shaped structure, and the length of the embedding slot is the same as the length of the support.

[0010] Further, the left and right sides of the support are provided with convex edge plates, and mounting holes are formed in the inside of the convex edge plates.

[0011] Further, the three-jaw chuck is provided with an axle hole at the center, and an annular groove is formed in the side wall of the three-jaw chuck and located outside the axle hole.

[0012] Compared with the prior art, the technical scheme has the following beneficial effects:

[0013] The sensor steering device test fixture is characterized in that the embedded blocks at the bottom of the support seat can slide into the inside through the embedded slots on the support seat, the embedded blocks and the embedded slots are in the inverted T-shaped structure, the vertical limiting effect is achieved, the positioning columns can be inserted into the corresponding positioning slots through the elastic effect of the elastic springs after the support seat is slid to the position where the fixture is to be installed, the support seat is transversely limited and the three-jaw chuck is fixed, multiple fixtures can be conveniently installed and the coaxiality between the fixtures can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a sectional view of the test fixture of the utility model structure;

[0015] Figure 2 It is the utility model structure Figure 1 It is an enlarged view of the structure at A;

[0016] Figure 3 It is a bottom view of the sliding plate of the utility model structure;

[0017] Figure 4 It is a perspective view of the support of the utility model structure.

[0018] In the figure: 1, support; 2, embedded slot; 3, embedded block; 4, support seat; 5, three-jaw chuck; 6, axle hole; 7, annular groove; 8, sliding plate; 9, positioning column; 10, positioning slot; 11, sliding block; 12, sliding rod; 13, elastic spring; 14, mounting slot; 15, convex edge plate. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figures 1 to 4The sensor steering device test fixture in the embodiment comprises a three-jaw chuck 5 and a support 1, the bottom of the three-jaw chuck 5 is provided with a support seat 4, the bottom of the support seat 4 is provided with an embedded block 3, the outside of the support seat 4 is provided with a limiting piece, the top of the support 1 is provided with an embedded groove 2, and the embedded block 3 is slidingly connected in the embedded groove 2.

[0021] The limiting piece comprises a sliding plate 8, the sliding plate 8 is slidingly connected to the outside of the support seat 4, the inside of the support seat 4 is provided with a mounting groove 14, the inside of the mounting groove 14 is fixedly connected with a sliding rod 12, the outside of the sliding rod 12 is slidingly connected with a sliding block 11, the sliding block 11 is mounted on the inner side wall of the sliding plate 8, the outside of the sliding rod 12 is provided with an expansion spring 13 mounted on the top of the sliding block 11, four corners of the bottom of the sliding plate 8 are fixedly connected with positioning columns 9, the positioning columns 9 are cylindrical structures, the left and right sides of the top of the support 1 are provided with a plurality of front and rear equidistantly distributed positioning grooves 10, and the positioning columns 9 are matched with the positioning grooves 10.

[0022] The inside of the sliding plate 8 is provided with a rectangular opening, and the front and rear ends of the sliding block 11 are fixed on the inner wall of the rectangular opening, so that the sliding plate 8 can drive the sliding block 11 to move when the sliding plate 8 moves.

[0023] It should be noted that, through the design of the embedded groove 2 on the support 1, the embedded block 3 at the bottom of the support seat 4 can slide into the inside, and the inverted "T" structure of the embedded block 3 and the embedded groove 2 plays a vertical limiting effect. After the support seat 4 is slid to the position where it needs to be installed, the positioning columns 9 can be inserted into the corresponding positioning grooves 10 through the elastic effect of the expansion spring 13 itself, so that the support seat 4 can be transversely limited to fix the three-jaw chuck 5, which is convenient for installing multiple fixtures and can ensure the coaxiality between the fixtures.

[0024] Please refer to Figure 1 In the embodiment, the embedded groove 2 and the embedded block 3 are both inverted "T" structures, and the length of the embedded groove 2 is the same as the length of the support 1.

[0025] Please refer to Figure 4 In the embodiment, the left and right sides of the support 1 are both provided with a convex edge plate 15, and the inside of the convex edge plate 15 is provided with a mounting hole.

[0026] The support 1 can be fixed at the position where it needs to be installed through the mounting hole and the fastener.

[0027] The inside of the three-jaw chuck 5 is provided with a shaft hole 6 located at the center, and the sidewall of the three-jaw chuck 5 is provided with an annular groove 7 located outside the shaft hole 6.

[0028] It is worth mentioning that the annular groove 7 is convenient for placing the sensor therein, and then fixing it through the three movable clamping jaws.

[0029] It should be noted that the three-jaw chuck 5 is prior art, and the principle of the three-jaw chuck 5 is that rotating the wrench drives the small bevel gear to rotate, and through the meshing of the large bevel gear and the small bevel gear and the rotation of the plane thread, the three clamping jaws are driven to move synchronously towards the center or exit, so as to realize the clamping and loosening of the workpiece.

[0030] In which, when the three clamping jaws move synchronously towards the center, the sensor is self-positioned at the center.

[0031] The working principle of the above embodiment is as follows: in use, the sliding plate 8 is pulled upwards to make the sliding block 11 slide in the installation groove 14 and extrude the extension spring 13 to be in a compressed state, then the embedded block 3 is slid into the embedded groove 2, the support seat 4 is slid to the position to be installed, and then the sliding plate 8 is released to push the sliding block 11 back to the original position through the rebounding force of the extension spring 13, so that the sliding plate 8 pushes the positioning column 9 to insert into the corresponding positioning groove 10, and the support seat 4 is transversely limited to fix the three-jaw chuck 5, so that multiple clamps can be conveniently installed and the coaxiality between the clamps can be ensured.

[0032] It should be noted that, in this document, the terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sensor steering device test fixture comprising a three jaw chuck (5) and a support (1), characterised in that: The bottom of the three-jaw chuck (5) is provided with a supporting seat (4), the bottom of the supporting seat (4) is provided with an embedded block (3), the outside of the supporting seat (4) is provided with a limiting piece, the top of the support (1) is provided with an embedded groove (2), and the embedded block (3) is slidably connected in the embedded groove (2). The limiting piece comprises a sliding plate (8), the sliding plate (8) is slidably connected to the outside of the supporting seat (4), the inside of the supporting seat (4) is provided with a mounting groove (14), the inside of the mounting groove (14) is fixedly connected with a sliding rod (12), the outside of the sliding rod (12) is slidably connected with a sliding block (11), the sliding block (11) is mounted on the inner side wall of the sliding plate (8), and the outside of the sliding rod (12) is provided with a telescopic spring (13) mounted on the top of the sliding block (11).

2. A sensor turn device test fixture according to claim 1, wherein: The bottom of the sliding plate (8) is provided with a positioning column (9), and the positioning column (9) is a cylindrical structure.

3. A sensor turn device test fixture according to claim 2, wherein: The top of the support (1) is provided with a plurality of positioning grooves (10) which are equidistantly distributed in front and back on the left and right sides, and the positioning column (9) is matched with the positioning groove (10).

4. The sensor turn device test fixture of claim 1, wherein: The embedded groove (2) and the embedded block (3) are both inverted "T" shaped structures, and the length of the embedded groove (2) is the same as the length of the support (1).

5. The sensor turn device test fixture of claim 1, wherein: The left and right sides of the support (1) are provided with convex edge plates (15), and the inside of the convex edge plate (15) is provided with a mounting hole.

6. A sensor turn device test fixture as in claim 1, wherein: The inside of the three-jaw chuck (5) is provided with a shaft hole (6) located at the center, and the sidewall of the three-jaw chuck (5) is provided with an annular groove (7) located outside the shaft hole (6).

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