Torque tester calibration device

Abstract

The utility model belongs to the technical field of instrument calibration devices, and particularly relates to a torque tester calibration device which comprises a base, the top of the base is fixedly connected with a first fixing support, a second fixing support and a third fixing support, the surface of the first fixing support is provided with a clamping assembly, the clamping assembly comprises a clamping seat and a servo motor, and the clamping seat is connected with the servo motor. A clamping groove is formed in the surface of the clamping seat; the torque tester to be tested is placed in the clamping groove, the square tenon connecting rod is pulled outwards to enable the square tenon joint to be inserted into the interface of the torque tester, the first electric push rod is operated in sequence to enable the clamping plate to abut against the side wall of the torque tester, and then the torque tester is horizontally fixed. The fixing of the torque tester and the butt joint of the interface and the square tenon joint are realized, and the device is suitable for testing of different types of torque testers.

Description

Technical Field

[0001] The utility model relates to the technical field of instrument calibration devices, in particular to a torque tester calibration device. Background Art

[0002] At present, there are many kinds of devices used for calibrating torque sensors and torque testers with different specifications, but they all have the following shortcomings: 1. The interface has poor versatility and cannot simultaneously meet the detection and calibration of torque sensors and torque testers of different specifications; 2. The installation and disassembly of the torque sensors and torque testers to be detected and calibrated on the calibration device is troublesome and inconvenient to operate.

[0003] The existing Chinese patent with announcement number CN205262671U discloses a torque tester calibration device, including a workbench, a detection system and a balance lever. The detection system includes a base with a grooved slide rail, a fixed bracket located at one end of the grooved slide rail and an adjustment bracket installed on the grooved slide rail. The adjustment bracket can slide on the grooved slide rail and can be locked. The base is fixed on the workbench. A screw is provided between the adjustment bracket and the fixed bracket. A worm gear box is installed on the adjustment bracket. A handwheel is installed at the end of the worm gear. A special connecting plate is fixed at the end of the worm gear shaft. An adapter shaft is installed on the fixed bracket. One end of the adapter shaft is a balance lever plug connector, and the other end is a square tenon joint. The square tenon joint corresponds to the special connecting plate, and the axes of the worm gear shaft and the adapter shaft coincide.

[0004] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the device fixes the instrument to be tested on a special connecting plate so that its force interface faces the square tenon joint, and the special connecting plate is not removable and cannot flexibly fix other specifications and models of instruments to be tested, which needs to be improved; therefore, a torque tester calibration device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model proposes a torque tester calibration device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a torque tester calibration device described in the utility model comprises a base, a fixed bracket 1, a fixed bracket 2 and a fixed bracket 3 are fixedly connected to the top of the base, a clamping assembly is installed on the surface of the fixed bracket 1, and the clamping assembly comprises a clamping seat and a servo motor, a clamping groove is opened on the surface of the clamping seat, four sides of the clamping seat are respectively fixedly connected with an electric push rod 1, and the driving end of the electric push rod 1 is fixedly connected with a clamping plate, the servo motor is fixedly installed on the upper side wall of the fixed bracket 1, and the driving end of the servo motor passes through the fixed bracket 1 and is fixedly connected to the clamping seat, a calibration assembly is installed on the fixed bracket 2, when in use, the torque tester to be tested is placed in the clamping groove, the square tenon connecting rod is pulled outward so that the square tenon joint is inserted into the interface of the torque tester, the electric push rod 1 is operated in turn so that the clamping plate is pressed against the side wall of the torque tester, and then the torque tester is horizontally fixed, so as to realize the fixation of the torque tester and the docking of the interface with the square tenon joint, and it is suitable for testing different models of torque testers.

[0007] Preferably, the calibration assembly comprises a rotating sleeve, and the rotating sleeve is rotatably mounted on the upper side wall of the second fixed bracket.

[0008] Preferably, a square socket is provided inside the rotating sleeve, which is convenient for replacement through a pluggable square tenon connecting rod.

[0009] Preferably, a square tenon connecting rod is inserted into the interior of the socket, and one end of the square tenon connecting rod is fixedly connected to a square tenon joint. Depending on the different interfaces of the torque tester, the corresponding square tenon joint is replaced to insert the square tenon connecting rod into the socket to meet the calibration requirements.

[0010] Preferably, the square tenon joint is provided with a plurality of specifications according to different interfaces of the torque tester, and the square tenon connecting rod is provided with a plurality of specifications according to different specifications of the square tenon joint.

[0011] Preferably, a balance lever is fixedly connected to the surface of the rotating sleeve, and weights can be hung on both ends of the balance lever. A spirit level is fixedly connected to the top center of the balance lever. The horizontality of the balance lever is detected by the spirit level, and the servo motor is controlled to rotate a corresponding angle to drive the balance lever to adjust to a horizontal position, and the zero point of the instrument under test is corrected. By hanging weights on one end of the balance lever, the servo motor is controlled to adjust the balance lever to a horizontal position again, and the corresponding value of the instrument under test is corrected. By replacing weights or adding or subtracting weights or replacing the mounting end of the balance lever and then adjusting the balance lever to a horizontal position, the corresponding value of the instrument under test is corrected, and the calibration of the torque tester is achieved.

[0012] Preferably, the calibration assembly further comprises an electric push rod 2, and the electric push rod 2 is fixedly mounted on the upper side wall of the fixed bracket 3.

[0013] Preferably, the driving end of the second electric push rod is fixedly connected with a pressure sensor, and the pressure sensor is electrically connected to the second electric push rod. When the square tenon joint is inserted into the interface of the torque tester, the second electric push rod is operated to press against the square tenon connecting rod to prevent the square tenon joint from detaching from the interface, and the pressure of the second electric push rod pressing against the square tenon connecting rod is detected by the pressure sensor, and the second electric push rod is controlled to stop running when the pressure reaches a certain value.

[0014] The utility model is beneficial in that:

[0015] 1. The utility model places the torque tester to be tested in the clamping groove, pulls the square tenon connecting rod outward so that the square tenon joint is inserted into the interface of the torque tester, and sequentially operates the electric push rod to make the clamping plate press against the side wall of the torque tester, thereby horizontally fixing the torque tester, thereby achieving the fixation of the torque tester and the docking of the interface with the square tenon joint, and is suitable for testing different models of torque testers.

[0016] 2. The utility model detects the horizontality of the balance lever through a spirit level, controls the servo motor to rotate the corresponding angle to drive the balance lever to adjust to a horizontal position, corrects the zero point of the instrument being tested, and controls the servo motor to adjust the balance lever to a horizontal position again by hanging a weight on one end of the balance lever, corrects the corresponding value of the instrument being tested, and realizes the calibration of the torque tester. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 Side view;

[0020] Figure 3 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the calibration component of the utility model;

[0022] Figure 5 For this utility model Figure 4 Schematic diagram of the expanded structure.

[0023] In the figure: 1. base; 2. fixed bracket 1; 3. fixed bracket 2; 4. clamping assembly; 41. clamping seat; 42. clamping groove; 43. electric push rod 1; 44. clamping plate; 45. servo motor; 5. calibration assembly; 51. rotating sleeve; 52. jack; 53. square tenon connecting rod; 54. square tenon joint; 55. balance lever; 56. electric push rod 2; 57. pressure sensor; 58. level; 6. fixed bracket 3. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] See also Figure 1-3 As shown, a torque tester calibration device includes a base 1, the top of the base 1 is fixedly connected with a fixed bracket 2, a fixed bracket 3 and a fixed bracket 6, the surface of the fixed bracket 2 is installed with a clamping assembly 4, the clamping assembly 4 includes a clamping seat 41 and a servo motor 45, the surface of the clamping seat 41 is provided with a clamping groove 42, the four sides of the clamping seat 41 are respectively fixedly connected with an electric push rod 43, and the driving end of the electric push rod 43 is fixedly connected with a clamping plate 44, the servo motor 45 is fixedly installed on the upper side wall of the fixed bracket 2, and the servo motor 45 is fixedly installed on the upper side wall of the fixed bracket 2. The driving end of the motor 45 passes through the fixed bracket 2 and is fixedly connected with the clamping seat 41. The calibration component 5 is installed on the fixed bracket 3. When in use, the torque tester to be tested is placed in the clamping groove 42, and the square tenon connecting rod 53 is pulled outward to insert the square tenon joint 54 into the interface of the torque tester. The electric push rod 43 is operated in turn to make the clamping plate 44 press against the side wall of the torque tester, and then the torque tester is fixed horizontally, so as to fix the torque tester and connect the interface with the square tenon joint 54. It is suitable for testing different models of torque testers.

[0027] Embodiment 2

[0028] For comparison with Example 1, please refer to Figure 4-5 As shown, the utility model provides another embodiment, the calibration component 5 includes a rotating sleeve 51, and the rotating sleeve 51 is rotatably mounted on the upper side wall of the fixed bracket 2 3.

[0029] A square insertion hole 52 is provided inside the rotating sleeve 51, and a pluggable square tenon connecting rod 53 is provided for easy replacement.

[0030] A square tenon connecting rod 53 is inserted into the interior of the jack 52, and one end of the square tenon connecting rod 53 is fixedly connected to a square tenon joint 54. Depending on the different interfaces of the torque tester, the corresponding square tenon joint 54 is replaced to insert the square tenon connecting rod 53 into the jack 52 to meet the calibration requirements.

[0031] The square tenon joint 54 has multiple specifications according to different settings of the torque tester interface, and the square tenon connecting rod 53 has multiple specifications according to different settings of the square tenon joint 54.

[0032] A balance lever 55 is fixedly connected to the surface of the rotating sleeve 51, and weights can be hung on both ends of the balance lever 55. A level ruler 58 is fixedly connected to the top center of the balance lever 55. The level ruler 58 is used to detect the horizontality of the balance lever 55, and the servo motor 45 is controlled to rotate a corresponding angle to drive the balance lever 55 to adjust to a horizontal position, and the zero point of the instrument under test is calibrated. By hanging a weight on one end of the balance lever 55, the servo motor 45 is controlled to adjust the balance lever 55 to a horizontal position again, and the corresponding value of the instrument under test is calibrated. By replacing the weight or adding or subtracting the weight or replacing the mounting end of the balance lever 55 and then adjusting the balance lever 55 to a horizontal position, the corresponding value of the instrument under test is calibrated, and the torque tester is calibrated.

[0033] The calibration assembly 5 also includes an electric push rod 2 56 , which is fixedly mounted on the upper side wall of the fixed bracket 3 6 .

[0034] A pressure sensor 57 is fixedly connected to the driving end of the electric push rod 56, and the pressure sensor 57 is electrically connected to the electric push rod 56. When the square tenon joint 54 is inserted into the interface of the torque tester, the electric push rod 56 is inserted into the jack 52 and presses against the square tenon connecting rod 53 to prevent the square tenon joint 54 from detaching from the interface. The pressure of the electric push rod 56 pressing against the square tenon connecting rod 53 is detected by the pressure sensor 57, and the electric push rod 56 is controlled to stop running when the pressure reaches a certain value.

[0035] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and according to the actual situation, a suitable controller should be selected to be electrically connected to the servo motor 45, the electric push rod and the electric push rod 2 56 to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the working order. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0036] Working principle: when in use, place the torque tester to be tested in the clamping groove 42, pull the square tenon connecting rod 53 outward to make the square tenon joint 54 inserted into the interface of the torque tester, and then operate the electric push rod 43 in turn to make the clamping plate 44 press against the side wall of the torque tester, and then fix the torque tester horizontally, so as to fix the torque tester and connect the interface with the square tenon joint 54, which is suitable for testing different models of torque testers.

[0037] The horizontality of the balance lever 55 is detected by the level ruler 58, and the servo motor 45 is controlled to rotate the corresponding angle to drive the balance lever 55 to adjust to a horizontal position, and the zero point of the instrument under test is calibrated. By hanging weights on one end of the balance lever 55, the servo motor 45 is controlled to adjust the balance lever 55 to a horizontal position again, and the corresponding value of the instrument under test is calibrated. By replacing the weights or adding or subtracting weights or replacing the mounting end of the balance lever 55 and then adjusting the balance lever 55 to a horizontal position, positive and negative load detection and calibration are realized, and the corresponding value of the instrument under test is calibrated to realize the calibration of the torque tester.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A torque tester calibration device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with a fixed bracket one (2), a fixed bracket two (3) and a fixed bracket three (6); a clamping assembly (4) is installed on the surface of the fixed bracket one (2); the clamping assembly (4) comprises a clamping seat (41) and a servo motor (45); a clamping groove (42) is provided on the surface of the clamping seat (41); four sides of the clamping seat (41) are respectively fixedly connected with an electric push rod one (43); a driving end of the electric push rod one (43) is fixedly connected with a clamping plate (44); the servo motor (45) is fixedly installed on the upper side wall of the fixed bracket one (2); and the driving end of the servo motor (45) passes through the fixed bracket one (2) and is fixedly connected to the clamping seat (41); a calibration assembly (5) is installed on the fixed bracket two (3).

2. The torque tester calibration device according to claim 1, characterized in that: The calibration component (5) comprises a rotating sleeve (51), and the rotating sleeve (51) is rotatably mounted on the upper side wall of the second fixed bracket (3).

3. The torque tester calibration device according to claim 2, characterized in that: A square insertion hole (52) is provided inside the rotating sleeve (51).

4. The torque tester calibration device according to claim 3, characterized in that: A square tenon connecting rod (53) is inserted into the interior of the insertion hole (52), and one end of the square tenon connecting rod (53) is fixedly connected to a square tenon joint (54).

5. The torque tester calibration device according to claim 4, characterized in that: The square tenon joint (54) is provided with a plurality of specifications according to different interfaces of the torque tester, and the square tenon connecting rod (53) is provided with a plurality of specifications according to different specifications of the square tenon joint (54).

6. The torque tester calibration device according to claim 2, characterized in that: A balance lever (55) is fixedly connected to the surface of the rotating sleeve (51), and weights can be hung on both ends of the balance lever (55). A level ruler (58) is fixedly connected to the center of the top of the balance lever (55).

7. The torque tester calibration device according to claim 1, characterized in that: The calibration assembly (5) further comprises a second electric push rod (56), wherein the second electric push rod (56) is fixedly mounted on the upper side wall of the third fixed bracket (6).

8. The torque tester calibration device according to claim 7, characterized in that: The driving end of the second electric push rod (56) is fixedly connected with a pressure sensor (57), and the pressure sensor (57) is electrically connected to the second electric push rod (56).

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