Loading device for calibrating torque wrench

Abstract

The utility model provides a loading device for verification of a torque wrench, which belongs to the technical field of verification equipment and comprises a support frame and an operation table arranged on the support frame, a plurality of loading seats are arranged on the operation table, and connectors are arranged on the loading seats. According to the utility model, data verification of the torque wrench without a sensor can be completed, so that the use frequency of the sensor on standard equipment is reduced, and the service life of the sensor is indirectly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of calibration equipment, in particular to a loading device for calibrating a torque wrench. Background Art

[0002] During the calibration process of a torque wrench, it is often necessary to load multiple times to complete the calibration. For example, for a dial-type torque wrench with a measurement upper limit of 50Nm, when calibrating according to the calibration procedure, the indication calibration should be calibrated at three points: 10Nm, 30Nm, and 50Nm. When calibrating the 10Nm point, the torque wrench needs to be preloaded three times first, and these three times only require the torque wrench to measure torque; then the torque wrench and the standard equipment are loaded simultaneously three times, and these three times require the torque wrench and the standard equipment to measure torque simultaneously. At this time, the torque wrench and the sensor of the standard equipment should be coaxially connected; that is, when calibrating one point, half of the loading does not require connection to the sensor of the standard equipment to complete the loading.

[0003] When there are many calibration points, the number of loading times may reach hundreds or even thousands of times. Considering that the items other than indication calibration, such as general technical requirements inspection, zero return error inspection, etc., also need to be loaded on the torque wrench. Therefore, more than 50% of the loading in the torque wrench calibration does not require standard equipment to measure, but since there is no corresponding equipment, the calibration of various data of the torque plate is tested by calibration equipment with sensors.

[0004] Since standard equipment sensors are precision measuring devices and are expensive, when calibrating according to existing standard documents and calibration equipment, if the number of loading times is too many, the repeated loading and stress of the sensor will affect the sensor's accuracy and service life. Therefore, unnecessary sensor loading should be reduced as much as possible during the calibration process. For example, operations that do not require measurement data, such as general technical requirements inspection of the calibration items, zero return error inspection, and pre-loading of indication calibration, do not need to be loaded on the sensor. This can greatly increase the service life of the sensor and reduce the maintenance frequency of the sensor. Utility Model Content

[0005] In view of this, the utility model provides a loading device for torque wrench calibration, which can complete the torque wrench calibration process without the need for standard equipment measurement, thereby reducing the use frequency of sensors on standard equipment and indirectly increasing the service life of the sensors.

[0006] In order to solve the above technical problems, the utility model provides a loading device for torque wrench calibration, including a support frame and an operating table arranged on the support frame, the support frame provides support for the operating table, the operating table is provided with a plurality of loading seats, the loading seats can fix the connector, the loading seats are provided with connectors, and the torque plate can be placed on the connector for calibration operations.

[0007] The support frame includes a base and a plurality of columns arranged on the base, and the tops of the plurality of columns are connected to the bottom of the operating table; that is, the operating table can be supported by the base and the columns.

[0008] A positioning groove is arranged on the loading seat, and a positioning block is arranged at the bottom of the connector corresponding to the positioning groove; that is, the positioning block can be inserted into the positioning groove.

[0009] The loading seat is connected to the operating table through a plurality of bolts, and the loading seat can be removed from the operating table through the bolts. Corresponding to the bolts, a plurality of clearance grooves are also arranged on the loading seat; that is, the bolts are located in the clearance grooves.

[0010] The operating table is also provided with a groove, in which a plurality of partitions are arranged crosswise, and the plurality of partitions divide the groove into a plurality of storage slots for placing connectors; that is, redundant connectors can be placed in the storage slots.

[0011] The groove is set as a T-shaped structure, and a cover plate is provided corresponding to the groove. The cover plate can be placed in the groove, and a force-applying groove is provided on the edge of the cover plate; that is, force is applied to the cover plate conveniently through the force-applying groove.

[0012] A plurality of connecting plates are also provided on the side of the base, a fixing plate is provided on the connecting plate, the connecting plate provides support for the fixing plate, and a suction cup buckle is provided on the fixing plate; that is, the fixing plate can be fixed by the suction cup buckle.

[0013] The fixing plate and the connecting plate are connected by bolts; that is, the fixing plate can be removed from the connecting plate by the bolts.

[0014] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0015] 1. This equipment can be used to calibrate some data of the torque wrench that do not require the participation of sensors, such as general technical requirements inspection of the calibration items, zero return error inspection, pre-loading of indication calibration, etc., which do not require the loading of standard equipment measurement data. This can reduce the number of standard equipment sensor loading times by more than 50% during the torque wrench calibration process, effectively protect the sensor, reduce the factors that affect the decline in sensor accuracy, and thus increase the service life of the sensor and reduce the maintenance frequency of the sensor.

[0016] 2. The equipment has a simple structure, is easy to operate, easy to use, highly practical, and suitable for large-scale popularization.

[0017] 3. The suction cup buckle on the equipment can firmly fix the equipment on the ground, thus preventing the equipment from tipping over due to the gravity of the torque wrench during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a structural schematic diagram of the loading device for torque wrench calibration of the utility model;

[0019] Figure 2 This is a structural schematic diagram of the operating table of the utility model;

[0020] Figure 3 For this utility model Figure 1 Schematic diagram of the structure at A in the middle.

[0021] Description of reference numerals:

[0022] 100, support frame; 101, base; 102, column;

[0023] 200, operating table; 201, groove; 202, partition; 203, storage slot; 204, cover plate; 205, force application slot;

[0024] 300, loading seat; 301, positioning slot; 302, giving way slot;

[0025] 400, connector; 401, positioning block;

[0026] 500, connecting plate; 501, fixing plate; 502, suction cup buckle head. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-3 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0028] like Figure 1-3 As shown: This embodiment provides a loading device for torque wrench calibration, including a support frame 100 and an operating table 200 arranged on the support frame 100, the support frame 100 provides support for the operating table 200, and the operating table 200 is also provided with a plurality of loading seats 300. In this embodiment, the number of the loading seats 300 is set to 4, and a connector 400 is placed on each loading seat 300. The torque wrench can be placed on the connector 400 for calibration loading, and the specifications of each connector 400 are different, so that the four connectors 400 can perform data calibration for four different models of torque wrenches;

[0029] Support frame 100 Figure 1 As shown,

[0030] The support frame 100 includes a base 101 and a plurality of columns 102 arranged on the base 101. In the present embodiment, the cross section of the base 101 is set as a rectangular frame structure. Four columns 102 are also obliquely arranged on the base 101. The four columns 102 are respectively located at the four corners of the upper surface of the base 101. The tops of the four columns 102 are connected to the operating table 200. The plurality of columns 102 can provide support for the operating table 200, thereby enabling the horizontal height of the operating table 200 to be at a height that is convenient for operation.

[0031] Positioning groove 301 Figure 2 As shown,

[0032] A positioning groove 301 is provided on the loading seat 300, and a positioning block 401 is provided at the bottom of the connector 400 corresponding to the positioning groove 301; the positioning block 401 is adapted to the cross section of the positioning groove 301 and the positioning block 401 can be inserted into the positioning groove 301, so that the connector 400 on the loading seat 300 can be disassembled and replaced, and then other types of torque wrenches can be calibrated and loaded, and the cross sections of the positioning groove 301 and the positioning block 401 are both polygonal structures, that is, the positioning block will not rotate in the positioning groove 301 when the torque wrench is calibrated and loaded.

[0033] Loading seat 300 Figure 2 As shown,

[0034] The loading seat 300 is connected to the operating table 200 by multiple bolts. In this embodiment, the bolts used are countersunk screws, that is, the loading seat 300 can be fixed on the operating table 200 by means of cross-slot countersunk screws, and the loading seat 300 can be removed from the operating table 200 by removing the countersunk screws, and then the loading seat 300 can be disassembled and maintained. Corresponding bolts are also provided with multiple makeshift grooves 302 on the loading seat 300; the countersunk screws are located in the makeshift grooves 302 and connected to the operating table 200, that is, the countersunk screws will not be located outside the loading seat 300 to affect the user experience and aesthetics.

[0035] The groove 201 is as Figure 2 As shown,

[0036] A groove 201 is also provided on the upper surface of the operating table 200, and a plurality of partitions 202 are provided in the groove 201. The plurality of partitions 202 are arranged crosswise with each other in the groove 201, and the plurality of partitions 202 divide the groove 201 into a plurality of storage grooves 203, and the storage grooves 203 are used to place the connectors 400; that is, the components removed from the loading seat 300 can be placed in the storage grooves 203.

[0037] The groove 201 is set as a T-shaped structure, and a cover plate 204 is provided corresponding to the groove 201. The cover plate 204 is adapted to the end of the groove 201 with a larger cross-section, that is, the cover plate 204 can be placed on the top of the groove 201 to protect the connectors 400 in the multiple storage slots 203. A force groove 205 is provided on the edge of the cover plate 204; that is, when taking out the cover plate 204, a finger can be inserted into the force groove 205, so that the cover plate 204 can be easily taken out of the groove 201.

[0038] Suction cup buckle head 502 Figure 3 As shown,

[0039] The side of the base 101 is also provided with a plurality of connecting plates 500. In the present embodiment, the number of the connecting plates 500 is 4 and they are located at the four corners of the base 101. The connecting plates 500 are of an L-shaped structure. A fixing plate 501 is provided on the connecting plates 500. The connecting plates 500 provide support for the fixing plates 501. The fixing plates 501 are also of an L-shaped structure. A suction cup buckle 502 is provided on the fixing plates 501. The suction cup buckle 502 can be adsorbed on the floor, that is, the device can be firmly fixed on the ground through the suction cup buckle 502 on the device, thereby avoiding tipping over due to the loading of the torque wrench during the use of the device.

[0040] The fixing plate 501 is connected to the connecting plate 500 by bolts. The fixing plate 501 can be disassembled from the connecting plate 500 by removing the bolts, and then the suction cup buckle 502 can be maintained or replaced.

[0041] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0042] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. Loading device for torque wrench calibration, characterized by: The invention comprises a support frame (100) and an operating table (200) arranged on the support frame (100); a plurality of loading seats (300) are arranged on the operating table (200); and a connector (400) is arranged on the loading seat (300).

2. The torque wrench calibration loading device according to claim 1, characterized in that: The support frame (100) comprises a base (101) and a plurality of columns (102) arranged on the base (101), and the tops of the plurality of columns (102) are connected to the bottom of the operating table (200).

3. The torque wrench calibration loading device according to claim 1, characterized in that: The loading seat (300) is provided with a positioning groove (301), and a positioning block (401) is provided at the bottom of the connector (400) corresponding to the positioning groove (301).

4. The loading device for torque wrench calibration according to claim 1, characterized in that: The loading seat (300) is connected to the operating platform (200) via a plurality of bolts, and a plurality of clearance grooves (302) are provided on the loading seat (300) corresponding to the bolts.

5. The torque wrench calibration loading device according to claim 1, characterized in that: The operating table (200) is also provided with a groove (201), and a plurality of partitions (202) are provided in the groove (201). The plurality of partitions (202) divide the groove (201) into a plurality of storage grooves (203), and the storage grooves (203) are used to place connectors (400).

6. The loading device for testing a torque wrench according to claim 5, characterized in that: The groove (201) is configured as a T-shaped structure, a cover plate (204) is provided corresponding to the groove (201), and a force application groove (205) is provided on the edge of the cover plate (204).

7. The torque wrench calibration loading device according to claim 2, characterized in that: The base (101) is also provided with a plurality of connecting plates (500) on the side thereof, a fixing plate (501) is provided on the connecting plate (500), and a suction cup buckle (502) is provided on the fixing plate (501).

8. The torque wrench calibration loading device according to claim 7, characterized in that: The fixing plate (501) and the connecting plate (500) are connected via bolts.

Images