Torque test calibration device

Abstract

The utility model discloses a torque test calibration device which comprises a tool body, a simulation bolt arranged at one end of the tool body, and a sensor assembly arranged at the other end of the tool body and coaxially connected with the simulation bolt. At least one positioning hole and at least one positioning sleeve are arranged in the tool body, a sensor assembly is installed in the positioning hole, and the axis of the positioning sleeve is parallel to the axis of the positioning hole. According to the utility model, coaxial butt joint of the rapid positioning sensor assembly and the tightening shaft is realized, and the detection efficiency of the calibration device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary tools for automobile manufacturing, and in particular relates to a torque testing and calibration device. Background Art

[0002] In the process of automobile manufacturing, the tightening of the wheel hub bolts is a key process. The accuracy of the tightening torque of the tire hub bolts will directly affect the safety of the whole vehicle. Therefore, regular testing and calibration of the torque of the tire bolt tightening machine is an indispensable task. The tire bolt tightening machine is generally a five-axis tightening machine, and each axis is evenly distributed in a ring shape, and the tire bolt tightening machine has a certain rotation angle to facilitate the alignment of the wheel hub bolt holes.

[0003] The accuracy of the dynamic torque of the tightening shaft is the main control indicator for the quality and safety of vehicle production and assembly. In order to ensure that the tightening process sets a stable and critical tightening torque, the dynamic torque accuracy of the tightening shaft needs to be calibrated regularly. The dynamic torque calibration process of the tightening shaft requires the use of a calibration fixture to connect the dynamic torque sensor and the simulated bolt, and align the axis of the tightening shaft with the dynamic torque sensor and the simulated bolt. Therefore, during daily testing and calibration, the calibration fixture needs to be installed on a large tray and fixed above the tightening shaft. The adjustment process aligns the axis of the tightening shaft with the dynamic torque sensor. The positioning and calibration process of the fixture is relatively time-consuming. Therefore, it is necessary to design a calibration device that can quickly coaxially dock the dynamic torque sensor with the tightening shaft. Utility Model Content

[0004] The purpose of the utility model is to solve the above technical problems and provide a torque test calibration device, so as to realize the rapid positioning of the sensor assembly and the coaxial docking of the tightening shaft, and improve the detection efficiency of the calibration device. In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A torque test calibration device includes a tool body, a simulation bolt arranged at one end of the tool body, and a sensor component arranged at the other end of the tool body and coaxially connected to the simulation bolt; at least one positioning hole and at least one positioning sleeve are arranged in the tool body, the sensor component is installed in the positioning hole, and the axis of the positioning sleeve is arranged parallel to the axis of the positioning hole.

[0006] Specifically, a tightening shaft passes through the positioning hole, and the tightening shaft is coaxially connected to the sensor component; and a limiting piece is connected to the positioning sleeve.

[0007] Specifically, the tool body includes a support rod, a first tool component disposed at one end of the support rod, and a second tool component disposed at the other end of the support rod.

[0008] Specifically, the support rod is detachably connected to the first tooling component and the second tooling component respectively or is integrally connected to the first tooling component.

[0009] Specifically, a fastening hole is provided in the first tooling component, and the end of the simulated bolt is adapted to the fastening hole; a fastener penetrating through the interior of the first tooling component and extending to the fastening hole is provided on the side of the first tooling component.

[0010] Specifically, a plurality of mounting holes are provided in the second tooling component, and the plurality of mounting holes are arranged concentrically; the positioning holes and the mounting holes are arranged along the same circumferential direction.

[0011] Specifically, a positioning sleeve is arranged in the mounting hole, and the axis of the inner hole of the positioning sleeve is arranged parallel to the axis of the support rod.

[0012] Specifically, the positioning sleeve includes a positioning seat and a sleeve connected to the positioning seat; the diameter of the positioning seat is larger than the mounting hole, the diameter of the sleeve is matched with the mounting hole, and the positioning seat is detachably connected to the second tooling component.

[0013] Specifically, the sensor assembly includes a torque sensor and an adapter connected to the torque sensor; the adapter is connected to the simulation bolt, and the torque sensor is installed in the positioning hole.

[0014] Specifically, the torque sensor, the adapter, and the simulated bolt are coaxially connected.

[0015] Compared with the prior art, the torque test and calibration device of the utility model has the following beneficial effects:

[0016] The axis of the locating sleeve is arranged parallel to the axis of the locating hole, and the locating sleeve is plugged and docked with the limiting piece to ensure that the limiting piece and the locating sleeve are arranged coaxially; thus, the locating hole is accurately aligned with a tightening shaft, so that the torque sensor and the tightening shaft can be quickly docked and positioned, and the tightening shaft and the torque sensor are accurately coaxially connected, thereby improving the detection efficiency of the calibration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic front view of a calibration device provided in an embodiment of the present application;

[0018] Figure 2 One of the structural schematic diagrams of the calibration device provided in the embodiment of the present application;

[0019] Figure 3 A second structural diagram of the calibration device provided in an embodiment of the present application;

[0020] Figure 4 A schematic side view of a second tooling component provided in an embodiment of the present application;

[0021] Figure 5 A schematic diagram of the structure of the positioning sleeve provided in an embodiment of the present application;

[0022] Figure 6 A schematic side view of a calibration device provided in an embodiment of the present application;

[0023] Reference numerals:

[0024] Tool body 1, positioning hole 11, positioning sleeve 12, positioning seat 121, sleeve 122, support rod 13, first tool component 14, fastening hole 141, fastener 142, second tool component 15, mounting hole 151, simulated bolt 2, tightening shaft 3, adapter 4, sensor assembly 5. DETAILED DESCRIPTION

[0025] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0026] Embodiment 1

[0027] This embodiment provides a torque test calibration device, which is suitable for dynamic torque accuracy calibration of a tightening shaft 3 of a five-axis tightening machine (not shown in the figure), and is not limited to the five-axis tightening machine.

[0028] Figure 1 This is a schematic front view of the calibration device provided in Example 1 of the present application. Figure 2 This is one of the structural schematic diagrams of the calibration device provided in Example 1 of the present application, Figure 3 The second structural diagram of the calibration device provided in the first embodiment of the present application is as follows: Figure 4 A side view schematic diagram of the second tooling component provided in Example 1 of the present application.

[0029] like Figure 1-Figure 4 As shown, the torque test calibration device provided in this embodiment includes a tool body 1, a simulation bolt 2 arranged at one end of the tool body 1, and a sensor assembly 5 arranged at the other end of the tool body 1 and coaxially connected to the simulation bolt 2; at least one positioning hole 11 and at least one positioning sleeve 12 are arranged in the tool body 1, the sensor assembly 5 is installed in the positioning hole 11, and the axis of the positioning sleeve 12 is arranged parallel to the axis of the positioning hole 11.

[0030] During the calibration test of the calibration device, a tightening shaft 3 passes through the positioning hole 11 and is coaxially docked with the sensor assembly 5. The diameter of the positioning hole 11 is larger than the diameter of the tightening shaft 3. The positioning sleeve 12 is docked with the limiter so that the positioning sleeve 12 can be positioned to the specified limiter position. Specifically, the positioning sleeve 12 has an inner hole. In this embodiment, the limiter is another tightening shaft. The other tightening shaft is inserted and matched with the inner hole of the positioning sleeve 12, so that the positioning hole 11 can quickly find the tightening shaft 3 that needs to be aligned, and improve the docking efficiency of the tightening shaft 3 that needs torque verification and the sensor assembly 5. The tightening shaft 3 is coaxially docked with the sensor assembly 5. When the tightening shaft 3 rotates, the torque is transmitted to the simulated bolt 2 through the sensor assembly 5, and the sensor assembly 5 accurately verifies the dynamic torque accuracy of the tightening shaft 3.

[0031] Embodiment 2

[0032] This embodiment optimizes a torque test calibration device based on the above embodiment, and in particular provides a specific implementation method of a tooling body:

[0033] The tool body 1 is used to position and install the sensor assembly 5. The tool body 1 has a space at both ends, in which the sensor assembly 5 is installed. The tool body 1 includes a support rod 13, a first tool component 14 arranged at one end of the support rod 13, and a second tool component 15 arranged at the other end of the support rod 13.

[0034] Figure 3 The second structural diagram of the calibration device provided in the second embodiment of the present application is as follows: Figure 4 A side view schematic diagram of a second tooling component provided in Example 2 of the present application, Figure 5 This is a schematic diagram of the structure of the positioning sleeve provided in Example 2 of the present application. Figure 6 A side view schematic diagram of the calibration device provided in Example 2 of the present application.

[0035] like Figure 3-Figure 6 As shown, the support rod 13 is detachably connected or integrally connected to the first tooling component 14 and the second tooling component 15 respectively. The support rod 13 can be connected to the first tooling component 14 and the second tooling component 15 respectively by welding, screwing, clamping, etc. In this embodiment, the support rod 13 is bolted to the first tooling component 14 and the second tooling component 15 respectively.

[0036] A fastening hole 141 is provided in the first tooling part 14, and the end of the simulated bolt 2 is adapted to the fastening hole 141. The fastening hole 141 may be a polygonal hole, and in this embodiment, the fastening hole 141 is a hexagonal hole. In order to enhance the matching stability between the simulated bolt 2 and the fastening hole 141, a fastener 142 is provided on the side of the first tooling part 14, which passes through the interior thereof and extends to the fastening hole 141. The fastener 142 passes through the first tooling part 14 and radially penetrates into the fastening hole 141, thereby locking and positioning the simulated bolt 2. It is convenient to disassemble and install the simulated bolt 2, and the compatibility of the tightening shaft 3 is considered to ensure that multiple types of tightening shafts 3 can complete the calibration work through the test and calibration device.

[0037] The second tooling component 15 is provided with a plurality of mounting holes 151, the support rod 13 is installed at the center origin position of the second tooling component 15, and the plurality of mounting holes 151 are arranged concentrically around, and at the same time, the positioning hole 11 and the mounting hole 151 are arranged along the same circumferential direction. In this embodiment, the second tooling component 15 is provided with a positioning hole 11 and four mounting holes 151, and the formed five-hole positions correspond to the five tightening shafts 3 of the five-axis tightening machine.

[0038] A positioning sleeve 12 is arranged in the mounting hole 151. The axis of the inner hole of the positioning sleeve 12 is arranged parallel to the axis of the support rod 13. The positioning sleeve 12 is coaxially docked with the tightening shaft 3. The positioning sleeve 12 ensures that there is no shaking or deformation problem when the tightening shaft 3 is docked. The positioning sleeve 12 includes a positioning seat 121 and a sleeve 122 connected to the positioning seat 121; the diameter of the positioning seat 121 is larger than the mounting hole 151, and the diameter of the sleeve 122 is adapted to the mounting hole 151. The positioning seat 121 is detachably connected to the second tooling component 15, and specifically, the positioning seat 121 and the second tooling component 15 are connected and fixed by a plurality of bolts. The inner holes of the plurality of sleeves 122 are arranged at the outward end of the second tooling component 15, and the inner holes of the sleeves 122 are fitted with the tightening shaft 3. In this embodiment, the positioning sleeve 12 is made of copper. A plurality of positioning sleeves 12 are coaxially docked with the tightening shaft 3, which can offset the reaction force of the tightening shaft 3 during the calibration process, thereby improving the test accuracy of the tightening shaft 3 that needs to undergo dynamic torque calibration in the positioning hole 11; a plurality of positioning sleeves 12 realize the protection of the tightening shaft 3 and reduce the wear on the tightening shaft 3.

[0039] Embodiment 3

[0040] This embodiment optimizes a torque test calibration device based on the above embodiment, and in particular provides a specific implementation method of the sensor assembly:

[0041] The sensor assembly 5 includes a torque sensor and an adapter 4 connected to the torque sensor; the adapter 4 is connected to the simulation bolt 2, and the torque sensor transmits the torque to the simulation bolt 2 through the adapter 4.

[0042] Figure 1 This is a front view schematic diagram of the calibration device provided in Example 3 of the present application.

[0043] like Figure 1 As shown, one end of the torque sensor is installed in the positioning hole 11 of the second tooling component 15, the axis of the inner shaft of the torque sensor is colinearly arranged with the axis of the positioning hole 11, and one end of the inner shaft of the torque sensor is coaxially connected with the tightening shaft 3, specifically, one end of the inner shaft of the torque sensor is a hexagonal nut, which is convenient for adapting to the tightening shaft 3. The other end of the inner shaft of the torque sensor is coaxially connected with the adapter 4, specifically, the other end of the inner shaft of the torque sensor is a square tenon, which is convenient for adapting to the adapter 4.

[0044] The torque sensor, the adapter 4, and the simulated bolt 2 are coaxially connected. When the tightening shaft 3 is connected to the torque sensor, the tightening shaft 3, the torque sensor, the adapter 4, and the simulated bolt 2 are coaxially arranged to ensure the accuracy of the torque measurement of the tightening shaft 3. The torque sensor can transmit the detected torque value to a readable device for data processing.

[0045] Among them, the matching clearance between the torque sensor, the adapter 4, and the simulated bolt 2, and the matching clearance between the tightening shaft 3 and the copper sleeve are all no more than ±0.5mm.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0050] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A torque test calibration device, characterized in that: It includes a tool body, a simulation bolt arranged at one end of the tool body, and a sensor component arranged at the other end of the tool body and coaxially connected to the simulation bolt; at least one positioning hole and at least one positioning sleeve are arranged in the tool body, the sensor component is installed in the positioning hole, and the axis of the positioning sleeve is arranged parallel to the axis of the positioning hole.

2. A torque test calibration device according to claim 1, characterized in that: The tightening shaft passes through the positioning hole, and the tightening shaft is coaxially connected with the sensor component; and a limiting piece is connected with the positioning sleeve.

3. A torque test calibration device according to claim 1, characterized in that: The tool body includes a support rod, a first tool component arranged at one end of the support rod, and a second tool component arranged at the other end of the support rod.

4. A torque test calibration device according to claim 3, characterized in that: The support rod is detachably connected to the first tooling component and the second tooling component respectively or is integrally connected to the first tooling component.

5. A torque test and calibration device according to claim 3, characterized in that: A fastening hole is arranged in the first tooling component, and the end of the simulated bolt is adapted to the fastening hole; a fastener penetrating through the interior of the first tooling component and extending to the fastening hole is arranged on the side of the first tooling component.

6. A torque test calibration device according to claim 3, characterized in that: A plurality of mounting holes are arranged in the second tooling component, and the plurality of mounting holes are arranged concentrically; the positioning holes and the mounting holes are arranged along the same circumferential direction.

7. A torque test calibration device according to claim 6, characterized in that: A positioning sleeve is arranged in the mounting hole, and the axis of the inner hole of the positioning sleeve is arranged parallel to the axis of the support rod.

8. A torque test calibration device according to claim 7, characterized in that: The positioning sleeve includes a positioning seat and a sleeve connected to the positioning seat; the diameter of the positioning seat is larger than the mounting hole, the diameter of the sleeve is matched with the mounting hole, and the positioning seat is detachably connected to the second tooling component.

9. A torque test calibration device according to claim 1, characterized in that: The sensor assembly includes a torque sensor and an adapter connected to the torque sensor; the adapter is connected to the simulation bolt, and the torque sensor is installed in the positioning hole.

10. A torque test calibration device according to claim 9, characterized in that: The torque sensor, the adapter, and the simulation bolt are coaxially connected.

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