An adapter for torque wrench calibration

Abstract

The utility model discloses a kind of for torque wrench verification adapter, belong to torque wrench verification technical field, including adapter main part, at least one mounting hole is opened in the lateral wall surface of adapter main part, mounting hole is used to install the torsion portion of torque wrench, so that adapter main body can be connected with torque wrench, the bottom of adapter main part is equipped with connecting groove, connecting groove can be matched with the sensor of verification device Connection, so that adapter main body can realize the connection of torque wrench and verification device. The adapter of the utility model can be connected with torque wrench and verification device sensor respectively, so that torque wrench can be driven adapter main body to exert torque on the sensor of verification device, and then realize the matching connection between torque wrench and verification device, to complete the verification of verification device to torque wrench.

Description

Technical Field

[0001] This utility model belongs to the field of torque wrench calibration technology, specifically relating to an adapter for torque wrench calibration. Background Technology

[0002] Torque wrenches, as specialized tools, are widely used in various fields such as automotive, aviation, aerospace, and shipbuilding. They feature the ability to display measured values ​​or monitor the tightening process, helping personnel reduce inconsistent force values ​​when tightening bolts and nuts, thus ensuring product quality stability. According to national verification regulations, torque wrenches need to be verified at least annually; only torque wrenches that pass verification can be used normally.

[0003] A conventional torque wrench mounts its torsion section onto the sensor shaft of the calibration device and applies force to the torque rod. The calibration of the torque wrench is completed by comparing the sensor reading with the measured value displayed by the torsion wrench. However, in some special torsion wrenches, such as... Figure 6 The torque wrench shown typically inserts its torsion part into the workpiece to be torsion for the torsion operation. However, its torsion part lacks the relevant structural components that are sleeved on the sensor shaft, making it impossible to use conventional calibration devices, and there is currently no corresponding calibration device.

[0004] Therefore, there is an urgent need for an adapter to connect the torque wrench and the calibration device, so as to complete the calibration process of the torque wrench. Utility Model Content

[0005] In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides an adapter for torque wrench calibration, which is used to connect the torque wrench and the sensor of the calibration device to complete the calibration of the torque wrench.

[0006] To achieve the above objectives, this utility model provides an adapter for torque wrench calibration, which includes an adapter body;

[0007] The adapter body has at least one mounting hole on its side wall surface. The mounting hole is used to install the torsion part of the torque wrench, so that the adapter body can be connected to the torque wrench.

[0008] The bottom of the adapter body is provided with a connecting groove, which can be matched and connected with the sensor of the calibration device, thereby realizing the connection between the torque wrench and the sensor of the calibration device.

[0009] As a further improvement of this utility model, there are multiple mounting holes, and each mounting hole is spaced apart along the circumferential direction.

[0010] As a further improvement of this utility model, the diameter of each of the mounting holes is different;

[0011] And / or,

[0012] At least one of the mounting holes is configured as a through hole.

[0013] As a further improvement of this utility model, a weight reduction hole is provided on at least one end face of the adapter body.

[0014] As a further improvement of this utility model, the mounting hole is connected to the weight reduction hole.

[0015] The inner wall of the weight reduction hole is provided with an assembly hole, and

[0016] The mounting hole and the assembly hole are aligned so that the mounting hole and the assembly hole can be simultaneously matched and connected to the torsion part.

[0017] As a further improvement of this utility model, the assembly hole is a through hole that penetrates the inner and outer walls of the adapter body;

[0018] And / or,

[0019] The weight-reducing hole is a through hole that penetrates both ends of the adapter body.

[0020] As a further improvement of this utility model, the adapter also includes a connector disposed at the bottom of the adapter body.

[0021] One end of the connector is connected to the adapter body, and the other end extends away from the adapter body.

[0022] The connecting groove is located at the end of the connector that is away from the adapter body.

[0023] As a further improvement of this utility model, the outer wall surface of the connector is flush with the outer wall surface of the adapter body;

[0024] And / or,

[0025] The connectors are multiple and spaced apart along the circumferential direction.

[0026] As a further improvement of this utility model, the adapter further includes a connecting plate, one end of which is detachably connected to the adapter body.

[0027] The connecting plate has the connecting groove at the end opposite to the adapter body.

[0028] As a further improvement of this utility model, the adapter body is a cylinder;

[0029] And / or,

[0030] The cross-sectional shape of the connecting groove is square.

[0031] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0032] In summary, the technical solutions conceived by this utility model have the following beneficial effects compared with the prior art:

[0033] (1) The adapter for torque wrench calibration of this utility model has a mounting hole that matches the torsion part of the torque wrench in the adapter body and a connecting groove in the bottom of the adapter body, so that the torque wrench can apply torque to the sensor of the calibration device by driving the adapter body. The calibration device can detect the force it receives to obtain the detection value of the calibration device, and compare the detection value of the calibration device with the measurement value of the torque wrench to complete the calibration of the torque wrench by the calibration device.

[0034] (2) The adapter for torque wrench calibration of this utility model has multiple mounting holes on the adapter body, so that a single adapter body can be adapted to multiple torsion parts with different outer diameter specifications, and thus can be adapted to various types of torque wrenches.

[0035] (3) The adapter for torque wrench calibration of this utility model has a weight reduction hole on the adapter body to reduce the weight of the adapter body. The weight reduction hole can be a through hole that penetrates both ends of the adapter body. Alternatively, the adapter body is provided with a mounting hole and an assembly hole that are aligned. The mounting hole is connected to the weight reduction hole, and the assembly hole is provided on the inner wall of the weight reduction hole for mounting the torsion part.

[0036] (4) The adapter for torque wrench calibration of this utility model has a connecting plate and the connecting plate is detachably connected to the adapter body. The adapter body can be selected according to the torque wrench, and the corresponding calibration device can be selected according to the testing requirements. Then, a matching connecting plate can be selected and the connecting plate can be connected to the adapter body, so that the adapter has good compatibility and can be applied to a variety of adapter wrenches. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the adapter in an embodiment of this utility model;

[0038] Figure 2 This is a front view of the adapter in an embodiment of this utility model;

[0039] Figure 3 This is a side view of the adapter in an embodiment of this utility model;

[0040] Figure 4This is a top view of the adapter in an embodiment of this utility model;

[0041] Figure 5 This is a schematic diagram of the overall structure of the adapter from another perspective in an embodiment of this utility model;

[0042] Figure 6 This is a schematic diagram illustrating the use of the adapter in an embodiment of this utility model;

[0043] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1, adapter; 101, adapter body; 102, mounting hole; 103, connector; 104, connecting groove; 105, transition surface; 2, torque wrench; 201, torsion part; 202, torque rod. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0045] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] Example:

[0050] The adapter for torque wrench calibration in the preferred embodiment of this utility model is as follows: Figures 1-6 As shown in the diagram. The adapter 1 includes an adapter body 101. At least one mounting hole 102 is provided on the side wall of the adapter body 101. The mounting hole 102 is used to mount the torsion part 201 of the torque wrench 2. A connecting groove 104 is provided at the bottom of the adapter body 101. This connecting groove 104 can be matched and connected to the sensor of the calibration device. In actual use, the torsion part 201 of the torque wrench 2 is installed in the mounting hole 102, and the connecting groove 104 is matched and connected to the protrusion on the sensor. When a force is applied to the torque rod 202 of the torque wrench 2, the torsion part 201 can apply torque to the adapter body 101 under the drive of the torque rod 202. The adapter body 101 can then transmit the force to the sensor, thereby achieving the calibration of the torque wrench 2.

[0051] Specifically, after the adapter body 101 and the calibration device are matched and connected, they are coaxially arranged. The torque wrench 2 can drive the adapter body 101 to rotate slightly or tend to rotate. Correspondingly, the sensor can also rotate coaxially when driven by the adapter body 101, so that the sensor can calibrate the torque wrench 2. The adapter body 101 and the calibration device can rotate around the same center line.

[0052] Furthermore, the adapter body 101 is provided with a plurality of mounting holes 102, and each mounting hole 102 is spaced apart in the circumferential direction, so that there are a plurality of connection positions between the adapter body 101 and the torsion part 201.

[0053] For example, the adapter body 101 can be configured as a cube structure, with two mounting holes 102 respectively located on adjacent side walls, such that the two mounting holes 102 can be set at a 90° interval along the center line. Alternatively, the adapter body 101 can be configured as a cylinder, with the mounting holes 102 set at a 120° interval along the center line, so that three mounting holes 102 are provided on the adapter body 101.

[0054] More preferably, in order to ensure the accuracy of the calibration during the actual testing process, the torque wrench 2 needs to be placed horizontally, that is, the axis of the mounting hole 102 is set parallel to the horizontal plane. On the other hand, the axis of the mounting hole 102 can be set to pass through the center line to better simulate the actual state of the torque wrench 2 rotating the relevant workpiece.

[0055] Furthermore, the diameters of the mounting holes 102 are different to accommodate torsion parts 201 with different outer diameters. That is, the torsion parts 201 in different torque wrenches 2 are also different. By selecting mounting holes 102 that match the outer diameter of the torsion part 201, the matching connection between the torsion part 201 and the adapter body 101 can be achieved.

[0056] Furthermore, at least one mounting hole 102 is configured as a through hole, such that the torsion part 201 is inserted into the mounting hole 102 and passes through the other end of the mounting hole 102, so that the torsion part 201 passes through the mounting hole 102, thereby making the torsion part 201 securely connected to the adapter body 101.

[0057] In one embodiment, a weight-reducing hole is provided on at least one end face of the adapter body 101 to reduce the overall weight of the adapter 1. Preferably, the weight-reducing hole can be configured as a blind hole, and the weight-reducing hole can extend from one end face to the other end to minimize the weight of the adapter body. The weight-reducing hole does not communicate with the mounting hole 102 so as not to affect the setting of the torsion part 201.

[0058] Furthermore, the mounting hole 102 communicates with the weight-reducing hole, allowing the torsion part 201 to extend into the weight-reducing hole. Correspondingly, an assembly hole is provided on the inner wall of the weight-reducing hole, and the assembly hole and the mounting hole 102 are aligned. After the torsion part 201 extends into the weight-reducing hole, its end is installed in the assembly hole, achieving a stable connection between the torsion part 201 and the adapter body 101. Preferably, the weight-reducing hole can be configured as a through hole penetrating both ends of the adapter body 101.

[0059] Furthermore, the assembly hole can be configured as a blind hole, with the end of the twisting part 201 abutting against the bottom of the blind hole, indicating that the twisting part 201 is matched and connected with the assembly hole. Alternatively, the assembly hole can be configured as a through hole penetrating the inner and outer walls of the adapter body 101, so that the twisting part 201 can be inserted into the assembly hole and the connection between the twisting part 201 and the adapter body 101 can be completed. In actual use, the assembly hole configured as a through hole can also serve as a mounting hole 102, and the end of the twisting part 201 can be inserted from the assembly hole and connected to the mounting hole 102.

[0060] More preferably, the adapter body 101 can be configured as a cylinder, and the mounting hole 102 and the assembly hole can be set at a distance of 180° from the axis of the adapter body 101, and the axis of the adapter body 101 is the center line. With this configuration, the axis of the torsion part 201 after installation can pass through the center line.

[0061] Furthermore, a connecting groove 104 is provided at the bottom of the adapter body 101. When there is only one connecting groove 104, it is located on the center line and the connecting groove 104 is connected to the shaft of the sensor to realize the connection between the adapter body 101 and the shaft of the sensor, so that the adapter body 101 can directly transmit the force to the shaft of the sensor.

[0062] More preferably, when the adapter body 101 has a weight reduction hole, a connecting plate can be formed at its bottom, and a connecting groove is formed at the bottom of the connecting plate.

[0063] In another embodiment, the sensor of the calibration device is provided with protrusions spaced apart in the circumferential direction, and the bottom of the adapter body 101 is also provided with connecting grooves 104 that can be arranged spaced apart in the circumferential direction to match and connect with each protrusion respectively.

[0064] Furthermore, a shaft located at its center and various protrusions arranged on the outer periphery of the shaft can be arranged simultaneously in the same sensor, and each protrusion is arranged lower than the shaft. Therefore, correspondingly, a connector 103 is also provided at the bottom of the adapter body 101. The connector 103 is arranged one-to-one with the protrusion. Multiple connectors 103 are configured to be spaced apart along the circumferential direction. One end of the connector 103 is connected to the adapter body 101, and the other end extends away from the adapter body 101. A connecting groove 104 is opened at the end of the connector 103 away from the adapter body 101, and it is connected to the protrusion through the connecting groove 104.

[0065] Furthermore, the cross-sectional shape of the connecting groove 104 is square, and the cross-section of the protrusion and the shaft of the sensor is also set as a square structure, so that the connecting groove 104 can be matched and connected with the sensor, and can transmit the force applied by the torque wrench 2.

[0066] In one embodiment, the sensor includes a sensor body, which is cylindrical, and a plurality of protrusions are spaced circumferentially on the outer peripheral wall of the sensor body, with the bottom surface of the protrusions flush with the bottom surface of the sensor body. A shaft is provided at the top center of the sensor body. More preferably, the connecting groove 104 can be configured as a through groove penetrating the inner and outer walls of the connector 103 to match the protrusions.

[0067] Correspondingly, the outer wall surface of the connector 103 can be configured as an arc surface, and this arc surface structure can be flush with the outer peripheral wall surface of the cylindrical adapter body 101. Furthermore, the inner wall surface of the connector 103 can also be configured as an arc surface structure to match the cylindrical structure of the sensor body.

[0068] More preferably, the connector 103 is integrally formed with the adapter body 101, so that the connector 103 is formed at the bottom of the adapter body 101.

[0069] Furthermore, in the adapter body 101 which adopts a cylindrical structure and has weight-reducing holes, the thickness of the connector 103 in the radial direction of the adapter body 101 needs to match the thickness of the protrusion, and the adapter body 101 also needs to have a certain wall thickness to meet its fixed connection with the torsion part 201.

[0070] In one embodiment, the wall thickness of the adapter body 101 is greater than the radial thickness of the connector 103 in the adapter body 101. Further, a connecting ring is provided at one end of the adapter body 101 near each connector 103, and each connector 103 is connected to the connecting ring, wherein the inner and outer wall surfaces of the connecting ring are flush with the radial side wall surfaces of the connector 103.

[0071] Furthermore, since there is a thickness difference between the connecting ring and the adapter body 101, a transition surface 105 can be provided between the end faces of the connecting ring and the adapter body 101. The transition surface 105 is an arc-shaped transition surface 105, and the edge of the weight reduction hole near the connecting ring can also be set as an arc to avoid sharp corners from contacting the sensor or personnel.

[0072] In one embodiment, the adapter body 101 is a cylinder with a weight-reducing hole coaxially aligned with it. The outer diameter of the adapter body 101 is 9 cm, the diameter of the weight-reducing hole is 7 cm, the wall thickness of the adapter body 101 is 2 cm, the thickness of the connector 103 in the radial direction of the adapter body 101 is 1 cm, the thickness of the transition surface 105 in the radial direction of the adapter body 101 is 0.6 cm, the height of the adapter body 101 is 7 cm, the height of the connecting ring is 1.3 cm, and the height of the connector 103 is 3.7 cm. In this embodiment, only one mounting hole 102 and one assembly hole are provided, and the diameter of both holes is 1.85 cm.

[0073] Furthermore, the adapter body 101 and the connector 103 are made of brass.

[0074] Furthermore, the adapter 1 is also provided with a connecting plate. The top surface of the connecting plate is detachably connected to the adapter body 101, and the bottom surface of the connecting plate is provided with a connecting groove 104 for matching and connecting with the sensor. By setting the adapter body 101 and the connecting plate separately, the adapter body 101 that is compatible with different torque wrenches 2 can be selected, the corresponding calibration device can be selected according to the required range specifications, and the connecting plate that is compatible with the sensor structure of the calibration device can be selected. Through the detachable combination of the connecting plate and the adapter body 101, the adapter 1 can be applied to the calibration of various torque wrenches 2.

[0075] Furthermore, the adapter body can be configured with multiple mounting holes of different diameters, and the appropriate adapter body can be selected according to the actual situation. That is, the adapter body has multiple mounting hole diameter specifications to choose from. Similarly, the connecting plate can also be configured with multiple connecting grooves 104 of different sizes, and the appropriate connecting plate can be selected according to the actual situation. That is, the connecting plate has multiple connecting groove size specifications to choose from.

[0076] More preferably, a connector 103 may also be provided at the bottom of the connecting plate.

[0077] In one embodiment, the adapter body 101 has a plurality of threaded through holes penetrating the upper and lower surfaces of the adapter body 101, and a threaded hole matching the threaded through hole is provided on the connecting plate. Then, a threaded workpiece is provided to pass through the threaded through hole and the threaded hole respectively, thereby fixing the adapter body 101 and the connecting plate together.

[0078] Furthermore, the adapter body 101 can be configured as square, with "L"-shaped plates on both sides. The vertical side of the "L"-shaped plate is fixedly connected to the side wall of the adapter body 101, and the horizontal plate of the "L"-shaped plate can also be detachably connected by threaded workpieces.

[0079] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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. An adapter for torque wrench calibration, used to connect a torque wrench and a calibration device, characterized in that, Including the transfer entity; The adapter body has at least one mounting hole on its side wall surface. The mounting hole is used to install the torsion part of the torque wrench, so that the adapter body can be connected to the torque wrench. The bottom of the adapter body is provided with a connecting groove, which can be matched and connected with the sensor of the calibration device, thereby realizing the connection between the torque wrench and the sensor of the calibration device.

2. The adapter for torque wrench calibration according to claim 1, wherein, There are multiple mounting holes, and each mounting hole is spaced apart along the circumferential direction.

3. The adapter for torque wrench calibration according to claim 2, wherein, The diameters of the mounting holes described are different; And / or, At least one of the mounting holes is configured as a through hole.

4. The adapter for torque wrench calibration according to any one of claims 1 to 3, wherein, The adapter body has a weight reduction hole on at least one end face.

5. The adapter for torque wrench calibration according to claim 4, wherein, The mounting hole is connected to the weight reduction hole. The inner wall of the weight reduction hole is provided with an assembly hole, and The mounting hole and the assembly hole are aligned so that the mounting hole and the assembly hole can be simultaneously matched and connected to the torsion part.

6. The adapter for torque wrench calibration according to claim 5, wherein, The assembly hole is a through hole that penetrates the inner and outer walls of the adapter body; And / or, The weight-reducing hole is a through hole that penetrates both ends of the adapter body.

7. The adapter for torque wrench calibration according to any one of claims 1 to 3, wherein, The adapter also includes a connector disposed at the bottom of the adapter body. One end of the connector is connected to the adapter body, and the other end extends away from the adapter body. The connecting groove is located at the end of the connector that is away from the adapter body.

8. The adapter for torque wrench calibration according to claim 7, wherein, The outer wall surface of the connector is flush with the outer wall surface of the adapter body; And / or, The connectors are multiple and spaced apart along the circumferential direction.

9. The adapter for torque wrench calibration according to any one of claims 1 to 3, wherein, The adapter also includes a connecting plate, one end of which is detachably connected to the adapter body. The connecting plate has the connecting groove at the end opposite to the adapter body.

10. The adapter for torque wrench calibration according to any one of claims 1 to 3, wherein, The adapter body is cylindrical; And / or, The cross-sectional shape of the connecting groove is square.

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