Fixing tool for sensor calibration

Abstract

The utility model discloses a fixing tool for sensor calibration, which is characterized in that a fixing frame is provided with a first containing cavity used for being matched with a sensing assembly, a movable sleeve is provided with a through hole used for a rotating shaft on the sensor assembly to penetrate through, the fixing sleeve is provided with a first limiting piece used for fixing the rotating shaft, and the fixing frame is provided with a second limiting piece used for being fixedly connected with a workbench. The movable sleeve is provided with a third limiting piece used for fixing the sensing assembly on the workbench. The sensing assembly comprises a rotating shaft, a sensor and a worm gear, the sensor and the worm gear are arranged on the rotating shaft in a sleeving mode and located in the first containing cavity of the fixing frame, the rotating shaft sequentially penetrates through the fixing frame, the movable sleeve and an installation hole in the workbench to be matched with the fixing sleeve, and the sensing assembly is fixed to the workbench through a second limiting piece and a third limiting piece. The rotating shaft is fixed in the fixing sleeve through the first limiting piece, the clamp on the workbench ascends to clamp the fixing sleeve, the rotating shaft is prevented from rotating, manual calibration of the sensor is facilitated, and the calibration accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile calibration systems, in particular to a fixed tooling for sensor calibration. Background Art

[0002] Sensors are used to receive and output information. They are widely used in the automotive industry and are one of the important components of a vehicle. In the actual production process, sensor calibration is also extremely important and plays a role in the driving process of the car. When manually calibrating the sensor, because the position of the sensor component cannot be fixed, the calibration process will cause problems such as excessive calibration error and incomplete calibration, which will affect production efficiency, delay daily production progress, and even worse, affect driving safety. Utility Model Content

[0003] In view of the above problems, the utility model proposes a fixing tool for sensor calibration, wherein the sensor component is fixed on the workbench by the second limiter and the third limiter, and the first limiter fixes the rotating shaft in the fixing sleeve to prevent the rotating shaft from rotating, thereby improving the accuracy of calibration.

[0004] The technical solution adopted by the utility model is as follows: a fixed tool for sensor calibration, comprising a fixed sleeve, a movable sleeve and a fixed frame, the fixed frame is provided with a first cavity for cooperating with the sensor component, the movable sleeve is provided with a through hole for the rotating shaft on the sensor component to pass through, the fixed sleeve is provided with a first limiter for fixing the rotating shaft, the fixed frame is provided with a second limiter for fixedly connected to a workbench, and the movable sleeve is provided with a third limiter for fixing the sensor component on the workbench.

[0005] Optionally, the fixing sleeve includes a connecting sleeve and a connecting rod connected to the connecting sleeve, the connecting sleeve is provided with a second cavity for cooperating with the rotating shaft, one end of the first limiting member is located outside the connecting sleeve, and the other end of the first limiting member is passed through the second cavity.

[0006] Optionally, the first limiting member is a first screw, and the connecting sleeve is provided with a first screw hole for the first screw to pass through, and the first screw hole is connected to the second cavity.

[0007] Optionally, the diameter of the connecting rod is smaller than the diameter of the connecting sleeve.

[0008] Optionally, the second limiting member is a second screw, the fixing frame is provided with a through second screw hole, one end of the second screw is located outside the fixing frame, and the other end of the second screw passes through the second screw hole to cooperate with the workbench.

[0009] Optionally, the inner wall of the first cavity is provided with a strip groove for cooperating with a sensor.

[0010] Optionally, the first cavity is provided with a channel for the wire harness to pass through.

[0011] Optionally, the third limit member is ring-arranged on the outer peripheral wall of the movable sleeve, the upper end surface of the third limit member is used to abut against the worm gear, and the lower end surface of the third limit member is used to abut against the upper end surface of the mounting hole on the workbench.

[0012] The beneficial effects of the utility model are as follows: the sensor component includes a rotating shaft, a sensor and a worm gear, the sensor and the worm gear are respectively sleeved on the rotating shaft, the sensor and the worm gear are located in the first cavity of the fixed frame, the rotating shaft passes through the fixed frame, the movable sleeve, and the mounting hole on the workbench in sequence until it is matched with the fixed sleeve, the second limit member and the third limit member fix the sensor component on the workbench, the first limit member fixes the rotating shaft in the fixed sleeve, the clamp on the workbench rises and clamps the fixed sleeve to prevent the rotating shaft from rotating, which is convenient for manual calibration of the sensor and improves the accuracy of the calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of a fixed tooling for sensor calibration proposed in an embodiment of the utility model;

[0014] Figure 2 A schematic diagram of a movable sleeve of a fixing tool for sensor calibration proposed in an embodiment of the utility model.

[0015] The marks in the accompanying drawings are: 1. fixed sleeve; 11. connecting sleeve; 12. connecting rod; 2. movable sleeve; 3. fixed frame; 31. first cavity; 32. second screw hole; 33. strip groove; 4. first limit member; 5. second limit member; 6. third limit member; 7. rotating shaft; 8. sensor; 9. worm gear. DETAILED DESCRIPTION

[0016] The utility model is described in detail below in conjunction with the accompanying drawings.

[0017] like Figure 1 and 2As shown, a fixed tool for sensor calibration includes a fixed sleeve 1, a movable sleeve 2 and a fixed frame 3, the fixed frame 3 is provided with a first cavity 31 for cooperating with the sensor component, the movable sleeve 2 is provided with a through hole for the rotating shaft 7 on the sensor component 8 to pass through, the fixed sleeve 1 is provided with a first limiter 4 for fixing the rotating shaft 7, the fixed frame 3 is provided with a second limiter 5 for fixedly connected to the workbench, and the movable sleeve 2 is provided with a third limiter 6 for fixing the sensor component on the workbench. The workbench is provided with a mounting hole, and the sensor assembly includes a rotating shaft 7, a sensor 8 and a worm gear 9. The sensor 8 and the worm gear 9 are respectively sleeved on the rotating shaft 7, and the sensor 8 and the worm gear 9 are located in the first cavity 31 of the fixed frame 3. The rotating shaft 7 passes through the fixed frame 3, the movable sleeve 2, and the mounting hole on the workbench in sequence until it is matched with the fixed sleeve 1. The second limit member 5 and the third limit member 6 fix the sensor assembly on the workbench, and the first limit member 4 fixes the rotating shaft 7 in the fixed sleeve 1. The clamp on the workbench rises and clamps the fixed sleeve 1 to prevent the rotating shaft 7 from rotating, which is convenient for manual calibration of the sensor 8 and improves the accuracy of calibration.

[0018] In this embodiment, if Figure 2 As shown, the fixing sleeve 1 includes a connecting sleeve 11 and a connecting rod 12 connected to the connecting sleeve 11, the connecting sleeve 11 is provided with a second cavity for cooperating with the rotating shaft 7, one end of the first stopper 4 is located outside the connecting sleeve 11, and the other end of the first stopper 4 is passed through the second cavity. The first stopper 4 fixes the rotating shaft 7 in the connecting sleeve 11, and the clamp clamps the connecting rod 12 to prevent the rotating shaft 7 from rotating. The connecting sleeve 11 can be integrally formed with the connecting rod 12.

[0019] In this embodiment, if Figure 1 As shown, the first stopper 4 is a first screw, and the connecting sleeve 11 is provided with a first screw hole for the first screw to pass through, and the first screw hole is connected to the second cavity. The first screw passes through the first screw hole and enters the second cavity until it abuts against the rotating shaft 7, fixing the rotating shaft 7 in the connecting sleeve 11.

[0020] In this embodiment, if Figure 1 As shown, the diameter of the connecting rod 12 is smaller than the diameter of the connecting sleeve 11, so as to facilitate clamping.

[0021] In this embodiment, if Figure 2 As shown, the second stopper 5 is a second screw, the fixing frame 3 is provided with a through second screw hole 32, one end of the second screw is located outside the fixing frame 3, and the other end of the second screw passes through the second screw hole 32 to cooperate with the workbench. The workbench is also provided with a corresponding second screw hole 32, and the second screw fixes the fixing frame 3 on the workbench.

[0022] In this embodiment, if Figure 2As shown, the inner wall of the first cavity 31 is provided with a strip groove 33 for cooperating with the sensor 8. The strip groove 33 can limit the position of the sensor 8 to prevent the sensor 8 from rotating.

[0023] In this embodiment, if Figure 2 As shown, the first cavity 31 is provided with a channel for the wire harness to pass through. The wire harness on the sensor 8 is connected to the outside through the channel.

[0024] In this embodiment, if Figure 1 As shown, the third stopper 6 is arranged around the outer peripheral wall of the movable sleeve 2, the upper end surface of the third stopper 6 is used to abut against the worm gear 9, and the lower end surface of the third stopper 6 is used to abut against the upper end surface of the mounting hole on the workbench. The third stopper 6 is an annular structure, and the diameter of the third stopper 6 is larger than the diameter of the mounting hole. When the fixing frame 3 is installed on the workbench, the two sides of the third stopper 6 abut against the worm gear 9 and the upper end surface of the mounting hole respectively, and the sensor assembly is installed on the workbench.

[0025] The above description is only a preferred embodiment of the utility model, and does not limit the patent protection scope of the utility model. Any equivalent structural transformation made using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the utility model.

Claims

1. A fixed tool for sensor calibration, characterized in that: It includes a fixed sleeve, a movable sleeve and a fixed frame, the fixed frame is provided with a first cavity for cooperating with the sensor component, the movable sleeve is provided with a through hole for the rotating shaft on the sensor component to pass through, the fixed sleeve is provided with a first limiting piece for fixing the rotating shaft, the fixed frame is provided with a second limiting piece for fixed connection with the workbench, and the movable sleeve is provided with a third limiting piece for fixing the sensor component on the workbench.

2. The sensor calibration fixture according to claim 1, characterized in that: The fixing sleeve comprises a connecting sleeve and a connecting rod connected to the connecting sleeve, the connecting sleeve is provided with a second cavity for cooperating with the rotating shaft, one end of the first limiting member is located outside the connecting sleeve, and the other end of the first limiting member is passed through the second cavity.

3. The sensor calibration fixture according to claim 2, characterized in that: The first limiting member is a first screw, and the connecting sleeve is provided with a first screw hole for the first screw to pass through, and the first screw hole is communicated with the second cavity.

4. The sensor calibration fixture according to claim 2, characterized in that: The diameter of the connecting rod is smaller than the diameter of the connecting sleeve.

5. The sensor calibration fixture according to claim 1, characterized in that: The second limiting member is a second screw, the fixing frame is provided with a through second screw hole, one end of the second screw is located outside the fixing frame, and the other end of the second screw passes through the second screw hole to cooperate with the workbench.

6. The sensor calibration fixture according to claim 1, characterized in that: The inner wall of the first cavity is provided with a strip groove for cooperating with the sensor.

7. The sensor calibration fixture according to claim 1, characterized in that: The first cavity is provided with a passage for the wire harness to pass through.

8. The sensor calibration fixture according to claim 1, characterized in that: The third limiting member is arranged on the outer peripheral wall of the movable sleeve, the upper end surface of the third limiting member is used to abut against the worm gear, and the lower end surface of the third limiting member is used to abut against the upper end surface of the mounting hole on the workbench.

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