Torsion tester

Abstract

The utility model discloses a torsion tester, and the tester comprises a clamping tool which is used for clamping and fixing an object to be tested; the torsion sensor is fixedly connected with the clamping tool; the detection instrument comprises a shell body, a single-chip microcomputer is arranged in the shell body, the first end of the single-chip microcomputer is in circuit connection with the torsion sensor, a control panel, a lamp post and a graduated scale are arranged on the outer wall of the shell body, the control panel is in circuit connection with the second end of the single-chip microcomputer, the lamp post is in circuit connection with the third end of the single-chip microcomputer, and the graduated scale corresponds to the lamp post; wherein the magnitude of the torsion detected by the torsion sensor on the to-be-detected object in a real-time state is displayed through different lengths of the lighted lamp pole and the reading of the length of the lamp pole corresponding to the graduated scale. Through the change of the length of the lamp post, the change condition of the torsion value of the to-be-measured object is simply displayed, so that the change condition of the torsion value of the to-be-measured object has a dynamic change effect.

Description

Technical Field

[0001] The present application relates to the technical field of torque detection, and in particular to a torque tester. Background Art

[0002] Torque tester, also known as torque tester, torque meter, torque meter. It is a precision instrument used to detect, test and calibrate various torques. It is used to measure and calibrate the torque and torque setting conditions of various electric screwdrivers, pneumatic screwdrivers, torque screwdrivers, torque wrenches, and is suitable for various products such as shafts, bearings, and bottle caps that need to measure torque. It has special fixtures, clamps and other tools.

[0003] At present, when using a torque tester, a torque sensor is usually used in conjunction with a suitable tooling structure to measure the torque value of the object to be tested, and the measurement results are fed back to the user. Therefore, the torque test process will be roughly divided into three parts: 1. A tooling that is compatible with the object to be tested is required; 2. A torque sensor with high precision is required; 3. The display of test data and the command control part.

[0004] However, the existing torque tester has the following defects: the existing torque tester has a relatively stable interface connection, and the focus is on how to strengthen the connection between the object to be tested and the torque device, thereby ignoring the presentation part after data processing, that is, the existing torque tester generally adopts the method of presenting the detection data on the liquid crystal display screen, and the data displayed on the display screen is often large and complex, and more data are redundantly mixed together. For the change of the torque value of the object to be tested during the torque test process, only a stack of data can be given on the display screen. For the more critical torque value change situation, it is impossible to provide users with a dynamic data analysis experience, and the change of the torque value of the object to be tested is not simple and clear enough. Summary of the invention

[0005] The purpose of this application is to provide a torque tester that can simply and clearly display the changes in the torque value of the object to be tested, presenting users with a more intuitive dynamic data change experience.

[0006] In order to achieve the above purpose, the technical solution adopted in the present application is: to provide a torque tester, including: a clamping tool, the clamping tool is used to clamp and fix the object to be tested; a torque sensor, the torque sensor is fixedly connected to the clamping tool; a detection instrument, the detection instrument includes a shell body, a single-chip microcomputer is arranged in the shell body, and the first end of the single-chip microcomputer is connected to the torque sensor circuit, the outer wall of the shell body is provided with a control panel, a lamp post and a scale ruler, the control panel is connected to the second end circuit of the single-chip microcomputer, the lamp post is connected to the third end circuit of the single-chip microcomputer, and the scale ruler is set corresponding to the lamp post; wherein, by lighting up the different lengths of the lamp post and the reading of the scale ruler corresponding to the length of the lamp post, the torque detected by the torque sensor on the object to be tested in real time can be displayed.

[0007] As a preferred embodiment, the lamp post is formed by a plurality of lamp beads arranged at equal intervals.

[0008] As a preference, the detection instrument further comprises: a speaker, the speaker is arranged in the shell body, the speaker is connected to the fourth terminal circuit of the single-chip microcomputer, and the speaker is used to emit an alarm sound.

[0009] As another preferred embodiment, an opening is formed on the outer wall of the shell body, and the speaker transmits the alarm sound through the opening.

[0010] Further preferably, the openings are diffusely distributed in a threaded manner.

[0011] Furthermore, the detection instrument also includes a protection plate body, which is fixedly fitted with the shell body and covers the control panel and the lamp post.

[0012] Furthermore, the torque tester also includes: a base plate, on which the clamping tool and the torque sensor are fixedly arranged, the clamping tool includes: a first side plate, a second side plate and a tool body, the first side plate is fixedly connected to the base plate, the second side plate is fixedly connected to the base plate, one end of the tool body is fixedly connected to the first side plate, the other end of the tool body is fixedly connected to the second side plate, and a hollow setting is formed between the tool body and the base plate.

[0013] Furthermore, the torque sensor also includes: a third side plate and a sensor body, the third side plate is fixedly connected to the bottom plate, one end of the sensor body is fixedly connected to the third side plate, and the other end of the sensor body is fixedly connected to the second side plate; the torque tester also includes: a protective cover body, one end of the protective cover body is connected to the bottom plate, and the inner wall of the protective cover body is in contact with the outer wall of the third side plate to cover the outside of the torque sensor.

[0014] Furthermore, the control panel includes: a display module and a touch module, the display module is used to display data such as torque value, and the touch module is used to detect input of instructions.

[0015] Furthermore, the single chip microcomputer includes: a flash memory module, the flash memory module is used to store the upper and lower limit calibration values ​​of the torque value detected by the torque sensor, and the flash memory module delays erasing after the upper and lower limit calibration values ​​of the torque value change.

[0016] Furthermore, the torque tester also includes: an electrically erasable programmable read-only memory, which is connected to the torque sensor circuit, and data such as the torque value detected by the torque sensor is stored in the electrically erasable programmable read-only memory.

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] In terms of data output, in this application, after the data detected by the torque sensor is processed by the single-chip microcomputer, the torque value is reflected in the form of a lighting lamp. The length of the lamp is lit to show the size of the torque value of the object to be measured in real time. For the numerical measurement of the length of the lamp, the data is read by the scale set on the instrument shell body. The change of the torque value of the object to be measured is displayed more conveniently, simply and clearly, so that the change of the torque value of the object to be measured has a dynamic change effect, presenting a more intuitive dynamic data change experience to the user.

[0019] At the same time, the number of lamp beads that light up can be different according to the different torque values ​​output by the single-chip microcomputer. The smaller the torque value output, the fewer the lamp beads that light up, which is reflected in the shorter length of the lamp post. Conversely, the larger the torque value output, the more lamp beads that light up, which is reflected in the longer length of the lamp post. Therefore, when the torque value changes from large to small, or from small to large, the length of the lamp post will also change accordingly. At the same time, due to the setting of the scale, it is also convenient for users to read the data, forming a dynamic change effect of data. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a torque tester;

[0021] Figure 2 It is the structural diagram of the detection instrument;

[0022] Figure 3 is another structural schematic diagram of the torque tester;

[0023] Figure 4It is a schematic diagram of the structure of the clamping fixture and the torque sensor;

[0024] Figure 5 This is a schematic diagram of the system operation of the torque tester.

[0025] In the figure: 1. torque tester; 2. object to be tested; 10. clamping tool; 11. first side panel; 12. second side panel; 13. tool body; 131. U-shaped base; 20. torque sensor; 21. third side panel; 22. sensor body; 30. detection instrument; 31. shell body; 32. single chip microcomputer; 33. control panel; 34. lamp post; 35. scale; 36. lamp bead; 37. speaker; 38. opening; 39. protective plate body; 40. bottom plate; 50. protective cover body. DETAILED DESCRIPTION

[0026] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0028] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0029] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0030] As a preferred embodiment, see Figures 1 to 4The present application provides a torque tester 1, comprising: a clamping tool 10, the clamping tool 10 is used to clamp and fix the object 2 to be tested; a torque sensor 20, the torque sensor 20 is fixedly connected to the clamping tool 10; a detection instrument 30, the detection instrument 30 comprises a shell body 31, a single-chip microcomputer 32 is arranged in the shell body 31, and the first end of the single-chip microcomputer 32 is circuit-connected to the torque sensor 20, the outer wall of the shell body 31 is provided with a control panel 33, a lamp post 34 and a scale ruler 35, the control panel 33 is circuit-connected to the second end of the single-chip microcomputer 32, the lamp post 34 is circuit-connected to the third end of the single-chip microcomputer 32, and the scale ruler 35 is arranged corresponding to the lamp post 34; wherein, by lighting up the different lengths of the lamp post 34 and the reading of the scale ruler 35 corresponding to the length of the lamp post 34, the torque detected by the torque sensor 20 on the object 2 to be tested in real time is displayed.

[0031] Among them, a scale ruler 35 is provided on the outer wall of the shell body 31, and the starting point of the scale ruler 35 is the starting point of the lamp post 34. The length of the scale ruler 35 corresponds to the length of the lamp post 34, and the extension direction of the scale ruler 35 is consistent with the extension direction of the lamp post 34. Therefore, the purpose of setting the scale ruler 35 in the present application is to more easily convert and read the torque value of the length of the lamp post 34 that is lit, so that the length displayed by the lamp post 34 can have a more concrete data representation.

[0032] Preferably, in the present application, the lamp post 34 is composed of a plurality of lamp beads 36 arranged at equal intervals. The detection instrument 30 in the present application is preferably provided with 100 LED lamp beads 36. The lamp post 34 formed by the stacked arrangement of 100 LED lamp beads 36 can reflect the data detected by the torque sensor 20 processed by the single-chip microcomputer 32 in the length change of the lamp post 34. The length change of the lamp post 34 will be different due to the different number of lamp beads 36 that light up. Therefore, when the torque value is different or the torque value changes, the lighted length of the lamp post 34 will change in real time, thereby giving the user a dynamic data analysis experience and knowing the change of the torque value of the object 2 to be tested in a simple and clear manner.

[0033] That is, according to the different torque values ​​output by the single-chip computer 32, the number of LED lamp beads 36 that light up is different. The smaller the torque value output, the fewer the lamp beads 36 that light up, which is reflected in the lamp post 34 as the shorter the length of the lamp post 34 that lights up. Conversely, the larger the torque value output, the more the lamp beads 36 that light up, which is reflected in the lamp post 34 as the longer the length of the lamp post 34 that lights up. Therefore, when the torque value changes from large to small, or from small to large, the length of the lamp post 34 will also change accordingly. At the same time, due to the setting of the scale 35, it is also more convenient for users to read the data, forming a dynamic change effect of data.

[0034] As a preferred embodiment, the detection instrument 30 further includes: a speaker 37, which is disposed in the shell body 31, and is connected to the fourth end circuit of the single-chip computer 32, and is used for emitting an alarm sound.

[0035] Specifically, the speaker 37 is arranged at the bottom of the shell body 31. The specific purpose of the speaker 37 in this application is to issue a "torque exceeds the standard" alarm when the torque value of the object to be measured 2 exceeds the calibrated upper and lower limits, further reminding the operator that the torque value of the object to be measured 2 exceeds the standard at this time, thereby reducing the probability of damage to the object to be measured 2.

[0036] As another preferred embodiment, an opening 38 is provided on the outer wall of the shell body 31, and the speaker 37 transmits the alarm sound through the opening 38. The opening 38 locked on the shell body 31 facilitates the output of the sound of the speaker 37, so that the operator can hear the alarm sound emitted by the speaker 37 more clearly.

[0037] For further optimization, see Figure 2 The opening 38 is threaded and diffusely distributed, and is composed of a structure that diffuses and extends from a small hole to a large hole, thereby increasing the sound extension of the speaker 37 through the opening 38. After passing through the opening 38, the sound can be propagated in multiple directions, reducing the singleness of the direction of sound propagation after passing through the opening 38, so that the operator can hear the alarm sound issued by the speaker 37 even if he is in a corner.

[0038] Furthermore, the detection instrument 30 also includes a protection plate body 39 , which is fixedly fitted and connected to the shell body 31 , and covers the control panel 33 and the lamp post 34 .

[0039] In the present application, the protective plate body 39 is specifically a transparent acrylic plate, the shell body 31 in the detection instrument 30 is a cubic structure, the control panel 33 and the lamp post 34 are located on the same side, and the speaker 37 is located on a different side from the control panel 33 and the lamp post 34. The setting of the protective plate body 39 can reduce the wear of the lamp post 34, the scale 35 and the control panel 33 by external factors to a certain extent, and improve the service life of the detection instrument 30. At the same time, since the protective plate body 39 is arranged to fit the outer wall surface of the shell body 31, the operation of the control panel 33 can be unaffected by the protective plate body 39 while providing protection.

[0040] Furthermore, the torque tester 1 also includes: a base plate 40, on which a clamping tool 10 and a torque sensor 20 are fixedly arranged, the clamping tool 10 includes: a first side plate 11, a second side plate 12 and a tool body 13, the first side plate 11 is fixedly connected to the base plate 40, the second side plate 12 is fixedly connected to the base plate 40, one end of the tool body 13 is fixedly connected to the first side plate 11, the other end of the tool body 13 is fixedly connected to the second side plate 12, and a hollow setting is formed between the tool body 13 and the base plate 40.

[0041] In this application, the structure of the clamping tool 10 is specifically described in detail. Figure 3 and Figure 4 , is through the first side plate 11 to cooperate with the second side plate 12, the tooling body 13 is fixedly arranged between the first side plate 11 and the second side plate 12, the first side plate 11 and the second side plate 12 are an L-shaped plate structure, and the first side plate 11, the second side plate 12, the tooling body 13 and the bottom plate 40 are all a hard metal material to ensure the strength of the clamping tool 10, the short sides of the first side plate 11 and the second side plate 12 of the L-shaped structure are fixedly connected to the bottom plate 40, preferably by screws and nuts, and the short sides of the first side plate 11 and the second side plate 12 are arranged opposite to each other, and the U-shaped base 131 of the tooling body 13 is embedded in the outer walls of the first side plate 11 and the second side plate 12. As a result, there is a certain distance between the U-shaped base 131 and the bottom plate 40, which plays a certain shock-absorbing role. When the object to be tested 2 is engaged in the opening of the tool body 13 for torque detection, the impact of vibration on the bottom plate 40 during the torque detection process is reduced, thereby improving the overall stability of the clamping tool 10.

[0042] Furthermore, the torque sensor 20 also includes: a third side plate 21 and a sensor body 22, the third side plate 21 is fixedly connected to the bottom plate 40, one end of the sensor body 22 is fixedly connected to the third side plate 21, and the other end of the sensor body 22 is fixedly connected to the second side plate 12; the torque tester 1 also includes: a protective cover body 50, one end of the protective cover body 50 is connected to the bottom plate 40, and the inner wall of the protective cover body 50 is in contact with the outer wall of the third side plate 21 to cover the outside of the torque sensor 20.

[0043] The third side plate 21 is also made of a hard metal material and is also an L-shaped plate structure. The short side of the third side plate 21 is fixedly connected to the bottom plate 40, preferably by screws and nuts. The short side of the third side plate 21 plays a fixed supporting role. The third side plate 21 cooperates with the second side plate 12 to fix the sensor body 22, thereby reducing the volume of the torque sensor 20 to a certain extent. The protective cover body 50 is a metal protective cover. The setting of the protective cover body 50 can reduce the influence of external factors, such as dust and engineering debris on the torque sensor 20, and improve the detection accuracy of the torque sensor 20.

[0044] Furthermore, the control panel 33 includes: a display module and a touch module, the display module is used to display data such as torque value, and the touch module is used to detect input of instructions.

[0045] That is, preferably, the control panel 33 in the present application document is a touch display screen. For output data, the size of the torque value and the size of the range to which the torque value belongs can be displayed on the control panel 33 through the display module, and the status light of the range to which the torque value belongs can be displayed on the control panel 33. For output instructions, the operator can input instructions through the touch module, for example, to calibrate the upper and lower limits of the torque value of the object 2 to be tested.

[0046] See Figure 5 In the specific operation process, the torque sensor 20 will measure the torque value of the object 2 to be measured in real time, and then the single-chip microcomputer 32 uses 485 communication to send a request to the torque sensor 20. After receiving the request, the torque sensor 20 returns the measurement data to the single-chip microcomputer 32. The single-chip microcomputer 32 receives and processes the data and feeds back the results to the control panel 33 and the lamp post 34 respectively. If the torque value exceeds the calibrated upper limit value, the single-chip microcomputer 32 feeds back the signal to the speaker 37 through 232 communication, and the speaker 37 issues an alarm prompt of "torque exceeds the standard".

[0047] Preferably, the single-chip microcomputer 32 in the present application adopts the AC7811 model, and the model of the single-chip microcomputer 32 can be replaced in different usage scenarios.

[0048] Furthermore, the single chip computer 32 includes a flash memory module, which is used to store the upper and lower limit calibration values ​​of the torque value detected by the torque sensor 20, and the flash memory module delays erasing after the upper and lower limit calibration values ​​of the torque value are changed.

[0049] Among them, in the actual operation process, the upper and lower limit calibration values ​​of the torque value are stored in the flash memory of the microcontroller 32. The number of erase and write times of the microcontroller 32 is limited, generally around 10K times. Therefore, in this application, the flash memory is only erased once 10 seconds after the upper and lower limits of the torque value are changed, thereby increasing the service life of the microcontroller 32.

[0050] Furthermore, the torque tester 1 also includes an electrically erasable programmable read-only memory, which is connected to the torque sensor 20 circuit, and data such as the torque value detected by the torque sensor 20 is stored in the electrically erasable programmable read-only memory.

[0051] Among them, an external electrically erasable programmable read-only memory with a higher number of erase and write times can also be added, with an erase and write time of about 1000k times, which greatly increases the erase and write times and stores data in the electrically erasable programmable read-only memory instead of the flash memory, thereby further increasing the service life of the microcontroller 32.

[0052] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A torque tester, characterized in that: include: A clamping tool, which is used to clamp and fix the object to be measured; A torque sensor, the torque sensor is fixedly connected to the clamping fixture; A detection instrument, the detection instrument comprising a shell body, a single-chip microcomputer is arranged in the shell body, and a first end of the single-chip microcomputer is connected to the torque sensor circuit, a control panel, a lamp post and a scale ruler are arranged on the outer wall of the shell body, the control panel is connected to the second end circuit of the single-chip microcomputer, the lamp post is connected to the third end circuit of the single-chip microcomputer, and the scale ruler is arranged corresponding to the lamp post; The different lengths of the light poles are lit up, and the readings of the scale corresponding to the lengths of the light poles are used to display the torque magnitude detected by the torque sensor on the object to be tested in real time.

2. The torque tester according to claim 1, characterized in that: The lamp post is formed by a plurality of lamp beads arranged at equal intervals.

3. The torque tester according to claim 1, characterized in that: The detection instrument also includes: A speaker is arranged in the shell body, the speaker is connected to the fourth end circuit of the single chip microcomputer, and the speaker is used for issuing an alarm sound.

4. The torque tester according to claim 3, characterized in that: The outer wall of the shell body is provided with an opening, and the speaker transmits the alarm sound through the opening.

5. The torque tester according to claim 1, characterized in that: The detection instrument also includes a protection plate body, which is fixedly fitted and connected to the shell body, and covers the control panel and the lamp post.

6. The torque tester according to claim 1, characterized in that: The torque tester also includes: A bottom plate, on which the clamping fixture and the torque sensor are fixedly arranged, and the clamping fixture comprises: A first side plate, a second side plate and a tooling body, wherein the first side plate is fixedly connected to the bottom plate, the second side plate is fixedly connected to the bottom plate, one end of the tooling body is fixedly connected to the first side plate, the other end of the tooling body is fixedly connected to the second side plate, and a hollow arrangement is formed between the tooling body and the bottom plate.

7. The torque tester according to claim 6, characterized in that: The torque sensor further comprises: a third side plate and a sensor body, the third side plate is fixedly connected to the bottom plate, one end of the sensor body is fixedly connected to the third side plate, and the other end of the sensor body is fixedly connected to the second side plate; The torque tester also includes: A protective cover body, one end of which is connected to the bottom plate, and an inner wall of the protective cover body is in contact with an outer wall of the third side plate so as to cover the outside of the torque sensor.

8. The torque tester according to claim 1, characterized in that: The control panel comprises: A display module and a touch module, wherein the display module is used to display torque value data, and the touch module is used to detect input of instructions.

9. The torque tester according to any one of claims 1 to 8, characterized in that: The single chip microcomputer comprises: A flash memory module is used to store the upper and lower limit calibration values ​​of the torque value detected by the torque sensor, and the flash memory module delays erasing after the upper and lower limit calibration values ​​of the torque value change.

10. The torque tester according to any one of claims 1 to 8, characterized in that: The torque tester also includes: An electrically erasable programmable read-only memory is connected to the torque sensor circuit, and the torque value data detected by the torque sensor is stored in the electrically erasable programmable read-only memory.

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