A calibration device for quality testing of a torque calibrator

Abstract

This utility model discloses a calibration device for quality testing of a torque calibrator, relating to the technical field of torque calibrators. The calibration device includes a testing instrument body, a rotating block mechanism, and torque wrenches. The rotating block mechanism is located on the top surface of the testing instrument body. When calibrating multiple sets of torque wrenches, this utility model precisely moves the force-bearing block to the same force-bearing point on each set of torque wrenches according to the millimeter scale lines on the rotating block mechanism. Then, the measuring column is moved so that one side of the measuring column is tightly fitted to the tail of the torque wrench. This allows for precise measurement of the force-bearing length and actual length of multiple sets of wrenches, improving the accuracy of the calibration device. Furthermore, by adjusting the screw, the distance between the force-bearing rod and the overlapping rod can be flexibly adjusted, facilitating flexible calibration of torque wrenches of different thicknesses and expanding the applicability of the calibration device.

Description

Technical Field

[0001] This utility model relates to the field of torque calibration instrument technology, specifically a calibration device for quality testing of torque calibration instruments. Background Technology

[0002] A torque calibrator is essentially a "standard ruler" in the field of torque measurement. Its main function is to generate torque force on a torque wrench and then calibrate the torque force generated on the torque wrench with a numerical display. This allows for the verification and calibration of the torque wrench's quality after production and long-term use, ensuring it meets usage standards.

[0003] The utility model patent with announcement number CN223259127U discloses a calibration device for quality testing of a torque calibrator. This utility model, through the connection between the placement component and the calibration component, pulls the limiting component to move away from the calibration component, so that the limiting component and the calibration component are separated. At this time, the movement of the placement component is no longer blocked by the limiting component, and the placement component can be directly pushed to slide on the calibration component. When adjusting the position of the placement component on the calibration component, there is no need to remove the placement component, thereby avoiding the open weight on the placement component from falling off, making it more convenient to use.

[0004] However, existing torque testers and torque wrenches can automatically display values. During testing, the torque tester can be used to verify the quality of the torque wrench by displaying the values ​​on the screen. However, the torque force is also related to the length of the torque wrench under force. Existing torque testing devices are not convenient for accurately determining the force position of the torque wrench or accurately measuring the overall length of the torque wrench. In addition, existing torque testing devices mostly use a sliding and pressing method to temporarily connect the handle of the wrench, which is inconvenient to use. Utility Model Content

[0005] The purpose of this utility model is to provide a calibration device for quality testing of torque calibrators, so as to solve the problems mentioned in the background art, such as the inconvenience of accurately determining the force position of the torque wrench, accurately measuring the overall length of the torque wrench, and facilitating the temporary overlap of the torque handle when raising it.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a calibration device for quality testing of a torque calibrator, comprising a testing instrument body, a rotating block mechanism, and a torque wrench. The rotating block mechanism is disposed on the top surface of the testing instrument body, and a torque wrench is inserted into the interior of the rotating block mechanism. A test plate is fixedly connected to the bottom edge of the side of the testing instrument body. The device is characterized by a limiting groove disposed in the middle of the rotating block mechanism, a measuring column slidably connected inside the limiting groove, an indicator plate fixedly connected to the side of the measuring column, and millimeter graduations engraved on the surface of the rotating block mechanism. A force-bearing block is slidably connected to the surface of the rotating block mechanism. An adjustment groove is provided on the surface. A partition block is fixedly connected to the middle of the adjustment groove. Adjustment screws are rotatably connected to the middle of the partition block and both ends of the inner side of the adjustment groove. The adjustment screws include a positive thread rod and a negative thread rod. The positive thread rod rotates on one side of the partition block, and the negative thread rod rotates on the other side of the partition block. An overlapping assembly is threadedly connected to the surface of the positive thread rod, and a force-bearing rod is threadedly connected to the surface of the negative thread rod. The overlapping assembly includes an overlapping rod threadedly connected to the surface of the positive thread rod. A limiting sliding groove is provided inside the overlapping rod. A threaded rotating rod is rotatably connected to the inner bottom wall of the limiting sliding groove, and an overlapping piece is threadedly connected to the surface of the threaded rotating rod.

[0007] As a preferred embodiment of this utility model, a retainer is fitted onto one end of the front side of the rotating block mechanism, and the retainer is made of rubber.

[0008] As a preferred embodiment of this utility model, the top of the threaded rotating rod is fixedly connected to a rotary adjustment knob, and the outer side of the overlapping piece slides against the inner side of the limiting sliding groove.

[0009] As a preferred embodiment of this utility model, both the bottom of the testing instrument body and the test plate are fixedly connected to a placement and adjustment mechanism.

[0010] As a preferred technical solution of this utility model, the placement and adjustment mechanism includes a threaded fixing post fixedly installed on the bottom of the testing instrument body and the test plate, and the surface of the threaded fixing post has a rotating button.

[0011] As a preferred embodiment of this utility model, a rubber buffer sheet is fixedly connected to the bottom of the rotary button, and the bottom of the rubber buffer sheet is flared.

[0012] As a preferred technical solution of this utility model, a horizontal bubble meter is provided on the top surface of the test plate near the main body of the testing instrument. The horizontal bubble meter is assembled such that when the bubble of the horizontal bubble meter is centered, the main body of the testing instrument and the test plate are in a horizontal working position.

[0013] As a preferred technical solution of this utility model, the top surface of the test plate is provided with a torque force application mechanism, which is assembled to apply torque force to the rotating block mechanism.

[0014] As a preferred embodiment of this utility model, the force-bearing block has two pressure holes threaded through both sides, and each of the four pressure holes is threaded with a pressure column.

[0015] As a preferred embodiment of this utility model, one end of each of the four pressure columns is fixedly connected with a gasket, and the gasket is made of rubber.

[0016] Compared with the prior art, this utility model provides a calibration device for quality testing of torque calibrators, which has the following beneficial effects:

[0017] 1. This torque calibrator, used for quality testing, employs a rotating block mechanism with millimeter graduations and a measuring column. When calibrating multiple torque wrenches, the force block is precisely moved to the same force application point on each wrench according to the millimeter graduations on the rotating block mechanism. Then, the measuring column is moved so that one side of the measuring column fits tightly against the tail of the torque wrench, thereby detecting the length of multiple torque wrenches. This allows for precise measurement of the force application length and actual length of multiple wrenches, improving the accuracy of the calibration device. Furthermore, by adjusting the screw, the distance between the force application bar and the lap joint can be flexibly adjusted, facilitating the calibration of torque wrenches of different thicknesses and expanding the device's applicability.

[0018] 2. The quality inspection device for this torque calibrator, through the setting of the overlapping component, allows the torque wrench to be inserted into the rotating block mechanism. After turning the rotary adjustment knob, the threaded rotating rod rotates, and the overlapping rod of the threaded sleeve moves upward or downward within the limiting sliding groove until it fits the bottom of the torque wrench. This allows the torque wrench to be temporarily overlapped directly by turning, which is more convenient and faster than the existing overlapping method. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the force-bearing block and adjusting screw structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the disassembled force-bearing block structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the disassembled structure of the overlapping component of this utility model;

[0023] Figure 5 This is a schematic diagram of the rotating block mechanism, measuring column, and indicator plate of this utility model;

[0024] Figure 6 This is a schematic diagram of the disassembled structure of the placement and adjustment mechanism of this utility model.

[0025] In the diagram: 1. Detector body; 2. Rotating block mechanism; 4. Limiting groove; 5. Measuring column; 6. Indicator plate; 7. Force-bearing block; 8. Adjusting groove; 9. Separating block; 10. Adjusting screw; 1001. Positive thread rod; 1002. Negative thread rod; 11. Overlap assembly; 1101. Overlap rod; 1102. Limiting sliding groove; 1103. Threaded rotating rod; 1104. Overlap piece; 12. Force-bearing rod; 13. Test plate; 14. Torque wrench; 15. Sleeve; 16. Rotary adjusting knob; 17. Placement and adjustment mechanism; 1701. Threaded fixing column; 1702. Rotary button; 18. Rubber buffer sheet; 19. Horizontal bubble meter; 20. Torque application mechanism; 21. Pressure hole; 22. Pressure column; 23. Gasket. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-6This utility model discloses a calibration device for quality testing of a torque calibrator. The calibration device includes a testing instrument body 1, a rotating block mechanism 2, and a torque wrench 14. The rotating block mechanism 2 is mounted on the top surface of the testing instrument body 1, and the torque wrench 14 is inserted inside the rotating block mechanism 2. A test plate 13 is fixedly connected to the bottom edge of the side of the testing instrument body 1. A limiting groove 4 is located in the middle of the rotating block mechanism 2, and a measuring column 5 is slidably connected inside the limiting groove 4. Through the setting of the rotating block mechanism 2 with millimeter scale and the measuring column 5, the force-bearing length of multiple sets of wrenches can be accurately measured, and the actual length of multiple sets of wrenches can be precisely measured, improving the accuracy of the calibration device. An indicator plate 6 is fixedly connected to the side of the measuring column 5. Millimeter scale lines are engraved on the surface of the rotating block mechanism 2. A force-bearing block 7 is slidably connected to the surface of the rotating block mechanism 2. An adjustment groove 8 is provided on the surface, and a partition block 9 is fixedly connected to the middle of the adjustment groove 8. An adjustment screw 10 is rotatably connected to the middle of the partition block 9 and both ends of the inner side of the adjustment groove 8. The adjustment screw 10 improves the applicability of the calibration device. The adjustment screw 10 includes a positive thread rod 1001 and a negative thread rod 1002. The positive thread rod 1001 rotates on one side of the partition block 9, and the negative thread rod 1002 rotates on the other side of the partition block 9. The surface of the positive thread rod 1001 is threadedly connected to an overlapping component 11, and the surface of the negative thread rod 1002 is threadedly connected to a force-bearing rod 12. The overlapping component 11 includes an overlapping rod 1101 threadedly connected to the surface of the positive thread rod 1001. A limiting sliding groove 1102 is provided inside the overlapping rod 1101. A threaded rotating rod 1103 is rotatably connected to the inner bottom wall of the limiting sliding groove 1102, and an overlapping piece 1104 is threadedly connected to the surface of the threaded rotating rod 1103.

[0028] Specifically, a retainer 15 is fitted onto one end of the front of the rotating block mechanism 2. The retainer 15 is made of rubber.

[0029] In this embodiment, the ferrule 15 can be disassembled to remove the measuring column 5 or the force block 7 for replacement.

[0030] Specifically, a rotary adjustment knob 16 is fixedly connected to the top of the threaded rotating rod 1103, and the outer side of the overlapping piece 1104 slides against the inner side of the limiting sliding groove 1102.

[0031] In this embodiment, the rotary adjustment knob 16 facilitates the manual adjustment of the threaded rotating rod 1103.

[0032] Specifically, both the bottom of the instrument body 1 and the test plate 13 are fixedly connected to the placement and adjustment mechanism 17;

[0033] The placement adjustment mechanism 17 includes a threaded fixing post 1701 fixedly installed on the bottom of the detection instrument body 1 and the test plate 13. The surface of the threaded fixing post 1701 has a rotating button 1702.

[0034] A rubber buffer sheet 18 is fixedly connected to the bottom of the rotary button 1702. The bottom of the rubber buffer sheet 18 is flared.

[0035] A horizontal bubble meter 19 is provided on the top surface of the test plate 13 near the main body 1 of the testing instrument. The horizontal bubble meter 19 is configured such that when the bubble of the horizontal bubble meter 19 is centered, the main body 1 of the testing instrument and the test plate 13 are in a horizontal working position.

[0036] In this embodiment, when the device is placed in a non-level position, the rotating button 1702 is turned according to the bubbles on the level bubble meter 19. This causes the rotating button 1702 to drive the bottom rubber buffer sheet 18 to rise or fall. Then, with the cooperation of the placement adjustment mechanism 17, the bubbles are adjusted to the center of the level bubble meter 19, and the device is placed horizontally. This makes it convenient to place the calibration device in any uneven position and facilitates the use of the calibration device.

[0037] Specifically, the top surface of the test plate 13 is provided with a torque application mechanism 20, which is assembled to apply torque to the rotating block mechanism 2.

[0038] In this embodiment, the torque application mechanism 20 is an existing function on the torque calibrator. As the torque application mechanism 20 rotates, it drives the rotating block mechanism 2 and the force rod 12 on the force block 7 to rotate synchronously, and applies torque force to the torque wrench 14.

[0039] Specifically, both sides of the force-bearing block 7 have two pressure holes 21 threaded through them, and the interior of each of the four pressure holes 21 is threaded with a pressure post 22.

[0040] Each of the four pressure posts 22 has a gasket 23 fixedly connected to one end. The gasket 23 is made of rubber.

[0041] In this embodiment, after the force-bearing block 7 is moved to a suitable position on the torque wrench 14, the pressure column 22 is tightened, so that the pad 23 at one end of the pressure column 22 presses against the rotating block mechanism 2 for tightening and fixing, thereby adapting to torque wrenches 14 of different lengths for testing.

[0042] The working principle and usage process of this utility model are as follows: When performing quality inspection on multiple sets of torque wrenches 14, according to the millimeter scale line on the rotating block mechanism 2, the force block 7 is precisely moved to the same force-bearing point of multiple sets of torque wrenches 14, and then the measuring column 5 is moved so that one side of the measuring column 5 is tightly attached to the tail of the torque wrench 14, thereby detecting the length of multiple sets of torque wrenches 14. This allows for accurate detection of the force-bearing length of multiple sets of wrenches and precise measurement of the actual length of multiple sets of wrenches, improving the accuracy of the inspection device. At the same time, by adjusting the screw 10, the distance between the force-bearing rod 12 and the overlapping rod 1101 can be flexibly adjusted, facilitating flexible inspection of torque wrenches 14 with different thicknesses.

[0043] After inserting the torque wrench 14 into the rotating block mechanism 2, turn the rotary adjustment knob 16 to make the threaded rotating rod 1103 rotate. Then, the threaded connecting rod 1101 moves upward or downward inside the limiting sliding groove 1102 until it fits the bottom of the torque wrench 14, so that the torque wrench 14 can be temporarily connected by turning.

[0044] In summary, this torque calibrator quality testing device, through the setting of a rotating block mechanism 2 with millimeter scale and a measuring column 5, allows for the precise movement of the force block 7 to the same force application point on multiple torque wrenches 14 according to the millimeter scale lines on the rotating block mechanism 2 during quality testing. Then, the measuring column 5 is moved so that one side of the measuring column 5 is tightly fitted to the tail of the torque wrench 14, thereby detecting the length of the multiple torque wrenches 14. This allows for accurate measurement of the force application length and actual length of the multiple wrenches during testing, improving the accuracy of the calibration device. Simultaneously, by adjusting the screw 10... The distance between the force-bearing rod 12 and the overlapping rod 1101 can be flexibly adjusted, which facilitates the flexibility verification of torque wrenches 14 of different thicknesses and improves the applicability of the verification device. With the setting of the overlapping component 11, after the torque wrench 14 is inserted into the rotating block mechanism 2, the rotating adjustment knob 16 is turned to make the threaded rotating rod 1103 rotate. Then, the threaded overlapping rod 1101 moves upward or downward in the limiting sliding groove 1102 until it fits the bottom of the torque wrench 14. This allows the torque wrench 14 to be temporarily overlapped directly by turning. Compared with the existing overlapping method, it is more convenient and faster to use.

[0045] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A calibration device for quality testing of a torque calibrator, comprising a testing instrument body (1), a rotating block mechanism (2), and a torque wrench (14), wherein the rotating block mechanism (2) is provided on the top surface of the testing instrument body (1), the torque wrench (14) is inserted into the interior of the rotating block mechanism (2), and a test plate (13) is fixedly connected to the bottom edge of the side of the testing instrument body (1), characterized in that, Also includes: A limiting groove (4) is provided in the middle of the rotating block mechanism (2). A measuring column (5) is slidably connected inside the limiting groove (4). An indicator plate (6) is fixedly connected to the side of the measuring column (5). Millimeter scale lines are engraved on the surface of the rotating block mechanism (2). The rotating block mechanism (2) has a force-bearing block (7) slidably connected to its surface. The force-bearing block (7) has an adjustment groove (8) on its surface. A partition block (9) is fixedly connected to the middle of the adjustment groove (8). An adjustment screw (10) is rotatably connected to the middle of the partition block (9) and both ends of the inner side of the adjustment groove (8). The adjustment screw (10) includes a positive thread rod (1001) and a negative thread rod (1002). The positive thread rod (1001) rotates on one side of the partition block (9), and the negative thread rod (1002) rotates on the other side of the partition block (9). The surface of the positive thread rod (1001) is threadedly connected to an overlapping component (11), and the surface of the negative thread rod (1002) is threadedly connected to a force-bearing rod (12). The overlapping assembly (11) includes an overlapping rod (1101) threaded to the surface of a positive thread rod (1001). A limiting sliding groove (1102) is provided inside the overlapping rod (1101). A threaded rotating rod (1103) is rotatably connected to the inner bottom wall of the limiting sliding groove (1102). An overlapping piece (1104) is threaded to the surface of the threaded rotating rod (1103).

2. The device according to claim 1, characterized in that: The rotating block mechanism (2) has a sleeve (15) fitted onto one end of its front side. The sleeve (15) is made of rubber.

3. The device according to claim 1, characterized in that it is a device for the verification of the quality of the torque verification instruments. The top of the threaded rotating rod (1103) is fixedly connected to a rotary adjustment knob (16), and the outer side of the overlapping piece (1104) slides against the inner side of the limiting sliding groove (1102).

4. The device according to claim 1, characterized in that: The bottom of both the instrument body (1) and the test plate (13) are fixedly connected to a placement and adjustment mechanism (17).

5. The device according to claim 4, characterized in that it comprises: The placement adjustment mechanism (17) includes a threaded fixing post (1701) fixedly installed on the bottom of the instrument body (1) and the test plate (13), and the surface of the threaded fixing post (1701) has a rotating button (1702).

6. The device according to claim 5, characterized in that it comprises: A rubber buffer sheet (18) is fixedly connected to the bottom of the rotary button (1702), and the bottom of the rubber buffer sheet (18) is horn-shaped.

7. The device according to claim 1, characterized in that it is a device for the verification of the quality of the torque verification instruments. A horizontal bubble meter (19) is provided on the top surface of the test plate (13) near the instrument body (1). The horizontal bubble meter (19) is configured such that when the bubble of the horizontal bubble meter (19) is centered, the instrument body (1) and the test plate (13) are in a horizontal working position.

8. The device according to claim 1, characterized in that: The test plate (13) is provided with a torque force application mechanism (20) on its top surface. The torque force application mechanism (20) is assembled to apply torque force to the rotating block mechanism (2).

9. The device according to claim 1, characterized in that it is a device for the verification of the quality of the torque verification instruments according to claim 1. The force-bearing block (7) has two pressure holes (21) threaded through both sides, and each of the four pressure holes (21) is threaded with a pressure column (22).

10. The device according to claim 9, characterized in that it is a device for the verification of the quality of a torque tester. One end of each of the four pressing columns (22) is fixedly connected with a gasket (23), and the gasket (23) is made of rubber.

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