Torque testing device

Abstract

The utility model discloses a torque testing device, which is used for detecting a torque wrench, the torque wrench is provided with an output end and a force application end, and the torque testing device comprises a machine base; the torque sensor is detachably connected with the machine base and is connected with the output end of the torque wrench; the moving mechanism is detachably arranged on the machine base and slides on the machine base in the first direction; the clamping mechanism is arranged on the moving mechanism and is in driving connection with the force application end of the torque wrench, and the clamping mechanism drives the force application end of the torque wrench to move in the second direction; and the lifting mechanism is arranged on the clamping mechanism and is in driving connection with the force application end of the torque wrench, and the lifting mechanism drives the force application end of the torque wrench to move in the third direction. According to the technology, the horizontal height of the torque wrench is automatically adjusted according to the stress principle, and the accuracy of torque verification results of the torque wrench is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of torque detection, in particular to a torque testing device. Background Art

[0002] The torque test device is a common measuring and testing instrument used to measure the reaction of an object when subjected to torque. It is usually used in different scenarios in the fields of industry, manufacturing and maintenance, such as mechanical processing, automobile maintenance and electronic equipment. The torsional deformation, deformation angle or mechanical properties of the object being tested are measured by fixing the object being tested on the tester and applying a known torque. At present, the detection or calibration of torque wrenches generally uses a torque test device. However, due to the different heights of the torque sensor and the clamping end of the torque wrench during the detection process, the output end and the force application end of the torque wrench are not on the same horizontal line, and there is a certain height difference, which has a certain impact on the torque calibration result of the torque wrench. Utility Model Content

[0003] The main purpose of the utility model is to provide a torque testing device, aiming to improve the accuracy of the torque verification result of the torque wrench.

[0004] To achieve the above-mentioned purpose, the torque testing device proposed in the utility model is used to detect a torque wrench, wherein the torque wrench has an output end and a force-applying end, and the torque testing device comprises:

[0005] Machine base;

[0006] A torque sensor, detachably connected to the machine base and connected to an output end of the torque wrench;

[0007] A moving mechanism is detachably mounted on the base and slides along a first direction on the base;

[0008] A clamping mechanism, which is disposed on the moving mechanism and is drivingly connected to the force-applying end of the torque wrench, and the clamping mechanism drives the force-applying end of the torque wrench to move along the second direction;

[0009] The lifting mechanism is arranged on the clamping mechanism and is drivingly connected to the force-applying end of the torque wrench. The lifting mechanism drives the force-applying end of the torque wrench to move along the third direction.

[0010] Optionally, the base is provided with a slide groove along the first direction, and the moving mechanism includes:

[0011] A mounting frame, wherein the clamping mechanism is arranged on the mounting frame;

[0012] A tightening handle is arranged on the mounting frame, and one end of the tightening handle is provided with an external thread;

[0013] The slider is arranged in the slide groove and is slidably connected with the slide groove. A through hole is arranged on the slider, and an internal thread is arranged in the through hole. The locking handle is threadedly connected with the slider so that the slider and the slide groove have a locked state and a loosened state.

[0014] Optionally, the clamping mechanism comprises:

[0015] A support frame, arranged on the mounting frame;

[0016] Two clamping columns are provided, the two clamping columns are arranged on the upper part of the support frame and are fixedly connected to the support frame, and the clamping columns are used to clamp the force-applying end of the torque wrench;

[0017] A translation assembly is drivingly connected to the support frame, and the translation assembly drives the support frame to move along the second direction.

[0018] Optionally, the translation component comprises:

[0019] A screw rod is disposed on the mounting frame along the second direction and is rotatably connected to the mounting frame;

[0020] A hand wheel is provided on one side of the mounting frame and connected to the screw rod, and the hand wheel drives the screw rod to rotate;

[0021] The sliding block has a top fixedly connected to the support frame and a bottom provided with a nut, and the nut is threadedly connected to the lead screw.

[0022] Optionally, the translation assembly further includes a positioning shaft and a positioning block, wherein the positioning block is disposed at the bottom of the support frame, the positioning shaft is disposed at the mounting frame, and the positioning shaft passes through the positioning block and is disposed parallel to the screw rod.

[0023] Optionally, the lifting mechanism comprises:

[0024] A support plate is arranged above the support frame, and the clamping column passes through the support plate and is fixedly connected to the support frame;

[0025] A linear bearing, slidably disposed on the outer periphery of the clamping column;

[0026] Two hand screws are provided, the hand screws are threadedly connected to the support plate, and one end of the hand screw abuts against the clamping column to adjust the height of the support plate.

[0027] Optionally, the base includes a plurality of aluminum profiles, and the aluminum profiles are connected by screws.

[0028] Optionally, the torque testing device further comprises a sensor base, which is detachably mounted on the machine base, and the sensor base is provided with connecting holes with different threads, and the torque sensor is detachably connected to the sensor base via the connecting holes.

[0029] Optionally, the torque testing device further comprises a foot, which is disposed at the bottom of the base and is threadedly connected to the base to adjust the height of the base.

[0030] In the technical solution of the utility model, the torque testing device includes a machine base, the length direction of the machine base is a first direction, the torque sensor is arranged at one end of the top of the machine base, the moving mechanism is arranged at the other end of the top of the machine base, the moving mechanism moves along the length direction of the machine base, and is suitable for calibrating torque wrenches of different lengths by adjusting the distance between the moving mechanism 200 and the torque sensor. The clamping mechanism is placed on the moving mechanism and moves with the moving mechanism. The lifting mechanism is arranged on the clamping mechanism. The lifting mechanism and the torque sensor are respectively used to connect the force-applying end and the output end of the torque wrench. The lifting mechanism drives the force-applying end to move along the third direction, and the clamping mechanism drives the lifting mechanism and the force-applying end to move along the second direction, so that the force-applying end is relative to the output end. The output end of the torque sensor is fixedly connected and rotates to generate torque for calibration, wherein the second direction is perpendicular to the first direction on the plane, and the third direction is vertical lifting. The torque sensor can be detachably mounted on the machine base, and different types of torque sensors can also be installed on the machine base. Torque sensors of different types have different sizes. When the torque wrench is connected to the torque sensor and the lifting mechanism, the force-applying end and the output end may not be on the horizontal line. The force-applying end needs to be driven up and down by the lifting mechanism so that the force-applying end and the output end remain in a basically horizontal state to reduce torque measurement errors. In addition, the torque sensor and the moving mechanism are both detachably connected to the machine base, which is convenient for disassembly and carrying, convenient for transportation, and also convenient for replacement or repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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 the structures shown in these drawings without paying creative work.

[0032] Figure 1 It is a structural schematic diagram of the torque testing device of the utility model;

[0033] Figure 2 It is a structural schematic diagram of an embodiment of the torque testing device of the utility model;

[0034] Figure 3It is a structural schematic diagram of the sensor base in the torque testing device of the utility model;

[0035] Figure 4 It is a structural schematic diagram of the machine base in the torque testing device of the utility model.

[0036] Description of Figure Numbers:

[0037] Label name Label name 100 Machine base 110 Chute 120 roof 130 Base Plate 140 End Plate 150 Tailgate 160 Connecting plate 200 Mobile mechanism 210 Mounting bracket 220 Tightening handle 230 slider 300 Clamping mechanism 310 Support frame 320 Clamp Column 330 Translation Component 331 Screw 332 Handwheel 333 Slide Block 334 Positioning axis 335 Positioning block 400 Lifting mechanism 410 Support plate 420 Linear Bearings 430 Thumb screw 500 Sensor base 510 Connection hole 600 Bottom

[0038] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] 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 of 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.

[0040] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0043] The torque test device is a common measuring and testing instrument used to measure the reaction of an object when subjected to torque. It is usually used in different scenarios in the fields of industry, manufacturing and maintenance, such as mechanical processing, automobile maintenance and electronic equipment. The torsional deformation, deformation angle or mechanical properties of the object being tested are measured by fixing the object being tested on the tester and applying a known torque. At present, the detection or calibration of torque wrenches generally uses a torque test device. However, due to the different heights of the torque sensor and the clamping end of the torque wrench during the detection process, the output end and the force application end of the torque wrench are not on the same horizontal line, and there is a certain height difference, which has a certain impact on the torque calibration result of the torque wrench.

[0044] In order to solve the above technical problems, the utility model provides a torque testing device, which measures the torque by connecting the output end of the torque wrench with a torque sensor, and arranges a moving mechanism to move torque wrenches of different lengths in a first direction, and a clamping mechanism drives the force-applying end of the torque wrench to rotate to provide torque. In addition, a lifting mechanism is arranged to facilitate the adjustment of the height of the torque wrench, so that the output end and the force-applying end are at the same height, thereby improving the accuracy of the torque verification result of the torque wrench.

[0045] In an embodiment of the utility model, the torque testing device is used to detect a torque wrench, wherein the torque wrench has an output end and a force-applying end, and the torque testing device comprises:

[0046] Base 100;

[0047] A torque sensor is detachably connected to the base 100 and connected to the output end of the torque wrench;

[0048] The moving mechanism 200 is detachably mounted on the base 100 and slides along a first direction on the base 100;

[0049] The clamping mechanism 300 is provided on the moving mechanism 200 and is driven to connect to the force-applying end of the torque wrench. The clamping mechanism 300 drives the force-applying end of the torque wrench to move along the second direction.

[0050] The lifting mechanism 400 is disposed on the clamping mechanism 300 and is driven to connect to the force-applying end of the torque wrench. The lifting mechanism 400 drives the force-applying end of the torque wrench to move along the third direction.

[0051] In the technical solution of the utility model, Figure 1 As shown, the torque testing device includes a base 100, the length direction of the base 100 is a first direction, the torque sensor is arranged at one end of the top of the base 100, the moving mechanism 200 is arranged at the other end of the top of the base 100, the moving mechanism 200 moves along the length direction of the base 100, and is suitable for calibrating torque wrenches of different lengths by adjusting the distance between the moving mechanism 200 and the torque sensor. The clamping mechanism 300 is placed on the moving mechanism 200 and moves with the moving mechanism 200. The lifting mechanism 400 is arranged on the clamping mechanism 300. The lifting mechanism 400 and the torque sensor are respectively used to connect the force-applying end and the output end of the torque wrench. The lifting mechanism 400 drives the force-applying end to move along the third direction, and the clamping mechanism 300 drives the lifting mechanism 400 and the force-applying end to move along the second direction. The torque sensor is detachably mounted on the machine base 100, and different types of torque sensors can also be installed on the machine base 100. Torque sensors of different types have different sizes. When the torque wrench is connected to the torque sensor and the lifting mechanism 400, the force-applying end and the output end may not be on the horizontal line. The force-applying end needs to be driven up and down by the lifting mechanism 400 so that the force-applying end and the output end remain in a basically horizontal state to reduce torque measurement errors. In addition, the torque sensor and the moving mechanism 200 are both detachably connected to the machine base 100, which is convenient for disassembly and carrying, convenient for transportation, and convenient for replacement or repair.

[0052] Among them, a display screen can also be set to communicate with the torque sensor to display the torque value measured by the torque sensor. The output end of the torque wrench is fixed on the torque sensor, and the force-applying end is placed on the lifting mechanism 400. The output end and the force-applying end are adjusted to a horizontal state through the lifting mechanism 400, and the clamping mechanism 300 drives the force-applying end to apply a force to move it along the second direction. At this time, the torque value measured by the torque sensor is displayed on the display. By comparing the torque value displayed on the torque wrench, it can be detected whether the torque wrench meets the requirements. If the data of the two are inconsistent and exceed the error range, it means that the torque wrench is inaccurate and the torque wrench needs to be adjusted to a consistent or specified error range.

[0053] Optionally, the base 100 is provided with a slide slot 110 along the first direction, and the moving mechanism 200 includes:

[0054] A mounting frame 210, a clamping mechanism 300 is disposed on the mounting frame 210;

[0055] A tightening handle 220 is disposed on the mounting frame 210, and one end of the tightening handle 220 is provided with an external thread;

[0056] The slider 230 is disposed in the slide groove 110 and is slidably connected with the slide groove 110. A through hole is set on the slider 230, and an internal thread is set in the through hole. The locking handle 220 is threadedly connected with the slider 230 so that the slider 230 and the slide groove 110 have a locked state and a loosened state.

[0057] In this embodiment, if Figure 1 and Figure 2 As shown, the moving mechanism 200 includes a mounting frame 210, a tightening handle 220 and a slider 230. A slide groove 110 is provided on the machine base 100 along a first direction, i.e., a length direction. The mounting frame 210 is used to install the clamping mechanism 300 and the lifting mechanism 400. Connecting seats are provided on both sides of the mounting frame 210 along the first direction. The connecting seats are provided on the top of the machine base 100 and are fixedly connected to the mounting frame 210. The slider 230 is provided in the slide groove 110 and cooperates with the slide groove 110. The tightening handle 220 passes through the connecting seat and is connected to the slider 230 threaded connection, the length of the torque wrench is different, the position of the moving mechanism 200 is different, when the moving mechanism 200 moves along the first direction, the tightening handle 220 is turned, so that the slider 230 and the slide groove 110 are in a relaxed state, at this time the mounting frame 210 can be moved along the slide groove 110 through the slider 230, and the movement is stable. When it moves to the appropriate position, the tightening handle 220 is turned, so that the slider 230 and the slide groove 110 are in a locked state, at this time the mounting frame 210 is inconvenient to move, which is convenient for testing torque wrenches of different models and specifications.

[0058] There is at least one slider 230 on each side of the mounting frame 210. In the specific implementation of this embodiment, two sliders 230 are provided on each side of the mounting frame 210 to drive the mounting frame 210 to slide, thereby improving the stability of movement.

[0059] Optionally, the clamping mechanism 300 comprises:

[0060] A support frame 310, provided on the mounting frame 210;

[0061] Two clamping columns 320 are provided. The two clamping columns 320 are provided on the upper part of the support frame 310 and are fixedly connected to the support frame 310. The clamping columns 320 are used to clamp the force-applying end of the torque wrench;

[0062] The translation assembly 330 is drivingly connected to the support frame 310 , and the translation assembly 330 drives the support frame 310 to move along the second direction.

[0063] In this embodiment, if Figure 1 and Figure 2 As shown, the clamping mechanism 300 includes a support frame 310, a clamping column 320 and a translation assembly 330, wherein the translation assembly 330 and the support frame 310 are arranged on the top of the mounting frame 210, and the support frame 310 is driven to move along the second direction on the mounting frame 210 by the translation assembly 330, the clamping column 320 is arranged on the top of the support frame 310, and the screw passes through the side of the support frame 310 and is threadedly connected with the clamping column 320 to fix the clamping column 320, wherein two clamping columns 320 are arranged on the support frame 310 along the second direction. When measuring the torque wrench, the force-applying end of the torque wrench is arranged between the two clamping columns 320. When the translation assembly 330 drives the support frame 310 to move along the second direction When the torque wrench is moving, the clamping column 320 drives the force-applying end of the torque wrench to move. Since the output end of the torque wrench is fixed on the torque sensor, the force-applying end is equivalent to the output end in rotation, thereby generating torque to obtain torque. The distance between the two clamping columns 320 is greater than the diameter of the force-applying end of the torque wrench. The height of the clamping column 320 is greater than the diameter of the torque wrench, which can prevent the force-applying end of the torque wrench from rebounding when it rotates. Two clamping columns 320 are provided, which can make the force-applying end of the torque wrench move in two directions. Movement in different directions is pushed and rebounded by different clamping columns 320. Compared with manually pushing the torque wrench, the stability of movement and the accuracy of verification are improved.

[0064] Optionally, the translation assembly 330 includes:

[0065] The screw rod 331 is disposed on the mounting frame 210 along the second direction and is rotatably connected to the mounting frame 210;

[0066] The hand wheel 332 is disposed on one side of the mounting frame 210 and connected to the screw rod 331. The hand wheel 332 drives the screw rod 331 to rotate;

[0067] The sliding block 333 is fixedly connected to the support frame 310 at the top and is provided with a nut at the bottom, which is threadedly connected to the screw rod 331 .

[0068] In this embodiment, if Figure 1 and Figure 2As shown, the translation assembly 330 includes a screw rod 331, a hand wheel 332 and a sliding block 333. The screw rod 331 is arranged on the mounting frame 210, and the length direction of the screw rod 331 is the second direction. Both ends of the screw rod 331 are mounted on the mounting frame 210 through bearings, and one end thereof passes through the mounting frame 210 and is drivingly connected to the hand wheel 332. The screw rod 331 is driven to rotate by hand-cranking the hand wheel 332. The sliding block 333 is arranged at the bottom of the support frame 310 and is threadedly connected to the screw rod 331. When the screw rod 331 rotates, the sliding block 333 moves along the length direction of the screw rod 331, that is, the support frame 310 and the two clamping columns 320 are driven to move along the second direction. One of the clamping columns 320 applies a thrust to the force-applying end of the torque wrench, so that the torque wrench The force-applying end rotates relative to the output end. If the torque in another direction is to be tested, the handwheel 332 is rotated in the opposite direction to make the screw rod 331 rotate in the opposite direction, so that the support frame 310 and the two clamping columns 320 move in opposite directions. The other clamping column 320 pushes the force-applying end to rotate. Through the arrangement of the screw rod 331 and the sliding block 333, the torque test has a high degree of automation. By rotating the handwheel 332, the screw rod 331 can be rotated within an adjustable range, and the movement range of the sliding block 333 is within a controllable range. The rotation of the handwheel 332 can make the screw rod 331 stop at any time after rotation, that is, the sliding block 333 can be stopped at any desired position, and the adjustment is convenient. The hand-cranked handwheel 332 requires less force than the manual rotation of the torque wrench and has higher rotation stability.

[0069] Among them, the mounting frame 210 includes a horizontally arranged first mounting plate and a second mounting plate and a third mounting plate arranged at both ends of the first mounting plate. The second mounting plate and the third mounting plate are arranged vertically with the first mounting plate. Bearings are arranged on the second mounting plate and the third mounting plate. The screw rod 331 is rotatably connected to the second mounting plate and the third mounting plate through the bearing. The first mounting plate can be made of aluminum profile, which is light in weight and easy to carry and load.

[0070] Optionally, the translation assembly 330 further includes a positioning shaft 334 and a positioning block 335 , wherein the positioning block 335 is disposed at the bottom of the support frame 310 , and the positioning shaft 334 is disposed at the mounting frame 210 , and the positioning shaft 334 passes through the positioning block 335 and is disposed parallel to the screw rod 331 .

[0071] In this embodiment, if Figure 1 and Figure 2As shown, the translation assembly 330 also includes a positioning shaft 334 and a positioning block 335. The positioning shaft 334 is arranged on the mounting frame 210, and both ends are fixedly mounted on the second mounting plate and the third mounting plate respectively. The length direction of the positioning shaft 334 is the second direction. The positioning shaft 334 is arranged parallel to the screw rod 331. The positioning block 335 is arranged at the bottom of the support frame 310 and is sleeved on the positioning shaft 334. When the hand wheel 332 is shaken to drive the support frame 310 to move along the screw rod 331, the positioning block 335 moves on the positioning shaft 334, thereby improving the stability of the movement of the support frame 310, making it easier to calibrate the torque value of the torque wrench, and improving the accuracy of the calibration result.

[0072] Among them, two positioning shafts 334 and two positioning blocks 335 can be set respectively. The two positioning shafts 334 are set on both sides of the screw rod 331, and the two positioning blocks 335 are set on both sides of the sliding block 333 to cooperate with the positioning shaft 334 to improve the stability of movement. However, in the specific implementation, there is no requirement for the number of positioning shafts 334 and positioning blocks 335, as long as it can ensure stability during movement.

[0073] Optionally, the lifting mechanism 400 includes:

[0074] The support plate 410 is disposed above the support frame 310, and the clamping column 320 passes through the support plate 410 and is fixedly connected to the support frame 310;

[0075] A linear bearing 420 is slidably disposed on the outer periphery of the clamping column 320;

[0076] Two hand screws 430 are provided, and the hand screws 430 are threadedly connected to the support plate 410 , and one end of the hand screws 430 abuts against the clamping column 320 to adjust the height of the support plate 410 .

[0077] In this embodiment, if Figure 1 and Figure 2As shown, the lifting mechanism 400 includes a support plate 410, a linear bearing 420 and a hand screw 430. The support plate 410 is arranged on the top of the support frame 310. The clamping column 320 passes through the support plate 410 and is slidably connected to the support plate 410. The hand screw 430 is threadedly connected to the support plate 410. When the output end and the force-applying end of the torque wrench are not in the same horizontal direction, the height is adjusted by the support plate 410. At this time, the hand screw 430 is loosened so that the support plate 410 can slide in a third direction relative to the clamping column 320. When it moves to a suitable position, the hand screw 430 is tightened so that one end of the hand screw 430 in the support plate 410 abuts against the clamping column 320, thereby fixing the support plate 410 so that the output end and the force-applying end of the torque wrench are The calibration is carried out in a relatively horizontal state. In addition, the linear bearing 420 sliding sleeve is arranged on the outer periphery of the clamping column 320, specifically, it is arranged above the support plate 410. A protective sleeve is arranged on the outer periphery of the linear bearing 420. The linear bearing 420 can move along the third direction on the clamping column 320 and rotate along the clamping column 320. When the force is applied to the force-applying end through the handwheel 332, the clamping column 320 and the linear bearing 420 apply thrust to the force-applying end. The clamping column 320 and the force-applying end are protected by the setting of the linear bearing 420 and the protective sleeve to avoid hard collision between the force-applying end and the clamping column 320 when the thrust is applied, thereby causing damage. Since the protective sleeve is made of materials such as rubber or silicone, the damage caused by hard collision can be minimized to better protect the torque wrench.

[0078] It should be noted that, since it is difficult to visually make the force-applying end and the output end of the torque wrench completely horizontal during actual construction, the support plate 410 can be adjusted to a height slightly lower than the output end. At this time, the force-applying end of the torque wrench will droop to the support plate 410 due to the action of gravity. When thrust is applied to the torque wrench through the handwheel 332, the force-applying end of the torque wrench will automatically become horizontal. By adjusting the height of the support plate 410, the accuracy of the calibration result can be improved.

[0079] Optionally, the base 100 includes a plurality of aluminum profiles, and the aluminum profiles are connected by screws.

[0080] In this embodiment, if Figure 1 and Figure 4As shown, the machine base 100 includes a top plate 120, a bottom plate 130 and a connecting plate 160, and end plates 140 and tail plates 150 are arranged on both sides of the machine base 100, and the end plates 140 and tail plates 150 are fixedly connected to the connecting plates 160, wherein the top plate 120, the bottom plate 130 and the connecting plate 160 are all aluminum profiles, and a connecting plate 160 is respectively arranged on both sides between the top plate 120 and the bottom plate 130, and the two connecting plates 160 are in a hollow state, which can reduce the weight of the machine base 100 and facilitate carrying, and the top plate 120 is an aluminum profile. Due to the structure of the aluminum profile itself, the groove on the plane serves as a slide groove 110, which is convenient for the movement of the slider 230, which not only reduces the weight but also reduces the construction difficulty.

[0081] Furthermore, the torque testing device also includes a sensor base 500 , which is detachably mounted on the machine base 100 . The sensor base 500 is provided with a connecting hole 510 with different threads, and the torque sensor is detachably connected to the sensor base 500 through the connecting hole 510 .

[0082] In this embodiment, if Figure 1 and Figure 3 As shown, the sensor base 500 is arranged on the base 100. As shown in the figure, connecting holes 510 with different threads are arranged on the sensor. The torque sensor is installed on the sensor base 500. The torque sensor is threadedly connected and fixed with the connecting holes 510 by screws. The connecting holes 510 with different threads are arranged, so different torque sensors can be adapted. It has high versatility and a wide range of applications. The torque sensor is connected by screws, which is convenient for disassembly and assembly and easy to carry.

[0083] Furthermore, the torque testing device further includes a foot 600 , which is disposed at the bottom of the base 100 and is threadedly connected to the base 100 to adjust the height of the base 100 .

[0084] In this embodiment, if Figure 1 and Figure 4 As shown, a plurality of feet 600 are provided at the bottom of the base 100, and the feet 600 are threadedly connected to the bottom of the base 100, so as to facilitate adjustment of the height of the base 100. When calibrating the torque wrench or measuring at the factory, the height can be adjusted to a suitable height according to the actual situation, so as to facilitate calibration.

[0085] The above description is only an optional embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the inventive concept of the utility model, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A torque testing device for testing a torque wrench, wherein the torque wrench has an output end and a force application end, characterized in that: The torque testing device comprises: Machine base; A torque sensor, detachably connected to the machine base and connected to an output end of the torque wrench; A moving mechanism is detachably mounted on the base and slides along a first direction on the base; A clamping mechanism, which is disposed on the moving mechanism and is drivingly connected to the force-applying end of the torque wrench, and the clamping mechanism drives the force-applying end of the torque wrench to move along the second direction; The lifting mechanism is arranged on the clamping mechanism and is drivingly connected to the force-applying end of the torque wrench. The lifting mechanism drives the force-applying end of the torque wrench to move along the third direction.

2. The torque testing device according to claim 1, characterized in that: The base is provided with a slide groove along the first direction, and the moving mechanism comprises: A mounting frame, wherein the clamping mechanism is arranged on the mounting frame; A tightening handle is arranged on the mounting frame, and one end of the tightening handle is provided with an external thread; The slider is arranged in the slide groove and is slidably connected with the slide groove. A through hole is arranged on the slider, and an internal thread is arranged in the through hole. The locking handle is threadedly connected with the slider so that the slider and the slide groove have a locked state and a loosened state.

3. The torque testing device according to claim 2, characterized in that: The clamping mechanism comprises: A support frame, arranged on the mounting frame; Two clamping columns are provided, the two clamping columns are arranged on the upper part of the support frame and are fixedly connected to the support frame, and the clamping columns are used to clamp the force-applying end of the torque wrench; A translation assembly is drivingly connected to the support frame, and the translation assembly drives the support frame to move along the second direction.

4. The torque testing device according to claim 3, characterized in that: The translation assembly comprises: A screw rod is disposed on the mounting frame along the second direction and is rotatably connected to the mounting frame; A hand wheel is provided on one side of the mounting frame and connected to the screw rod, and the hand wheel drives the screw rod to rotate; The sliding block has a top fixedly connected to the support frame and a bottom provided with a nut, and the nut is threadedly connected to the lead screw.

5. The torque testing device according to claim 4, characterized in that: The translation assembly also includes a positioning shaft and a positioning block. The positioning block is arranged at the bottom of the support frame, and the positioning shaft is arranged at the mounting frame. The positioning shaft passes through the positioning block and is arranged parallel to the screw rod.

6. The torque testing device according to claim 3, characterized in that: The lifting mechanism comprises: A support plate is arranged above the support frame, and the clamping column passes through the support plate and is fixedly connected to the support frame; A linear bearing, slidably disposed on the outer periphery of the clamping column; Two hand screws are provided, the hand screws are threadedly connected to the support plate, and one end of the hand screw abuts against the clamping column to adjust the height of the support plate.

7. The torque testing device according to claim 1, characterized in that: The machine base comprises a plurality of aluminum profiles, and the aluminum profiles are connected by screws.

8. The torque testing device according to claim 1, characterized in that: The torque testing device further comprises a sensor base, which is detachably mounted on the machine base. The sensor base is provided with connecting holes with different threads, and the torque sensor is detachably connected to the sensor base through the connecting holes.

9. The torque testing device according to any one of claims 1 to 8, characterized in that: The torque testing device also includes a foot, which is arranged at the bottom of the base and is threadedly connected to the base to adjust the height of the base.

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