CN218994587U

CN218994587U - Torque measuring device and torque clamping measuring system

Info

Publication number: CN218994587U
Application number: CN202222986655.3U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Jiangsu Lidao Technology Co ltd
Current assignee: Jiangsu Lidao Technology Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-05-09
Anticipated expiration: 2032-11-09

Abstract

The application provides a torque measurement device and a torque clamping measurement system. The torque measuring device comprises a mounting bracket, a lifting assembly, a rotating assembly and a torque measuring assembly. The mounting bracket is arranged on the lifting assembly; the rotating component is arranged on the mounting bracket; the lifting assembly drives to realize lifting movement, and the rotating assembly drives to realize rotating movement. The torsion measurement assembly includes: a measuring pressure head is pressed against the workpiece to be measured; a torque sensor for outputting a torque measurement result; the adjusting component comprises an elastic piece, the adjusting component is connected between the measuring pressure head and the torsion sensor, the distance between the measuring pressure head and the torsion sensor can be changed through the adjusting component, and the measuring direction of the measuring pressure head and the initial elastic direction can be formed into a certain included angle through bending. The torque measuring device adopts soft contact, and the adjusting component can adjust the measuring height and the measuring angle of the measuring pressure head, so that the measuring pressure head is ensured to be fully contacted with the part, the part cannot be damaged, and the accuracy of a measuring result is ensured.

Description

Torque measuring device and torque clamping measuring system

Technical Field

The application relates to the technical field of torque measurement, in particular to a torque measurement device and a torque clamping measurement system.

Background

Along with the development of modern industry, the industrial production of China starts to step into an automation stage. When detecting data such as part torque, a test head for testing torque is required to be in contact with the surface of the part, but individual differences exist in the batch of parts. The traditional test head adopts hard connection, and in the in-process of measuring the moment of torsion, the condition that can not contact the part or crush the part can appear, causes the part to damage easily or the unstable condition of measuring result.

In the background section, the foregoing information is disclosed only for enhancement of understanding of the background of the application and therefore it may not constitute prior art information that is already known to a person of ordinary skill in the art.

Disclosure of Invention

At least one embodiment of the present application provides a torque measurement device and a torque clamp measurement system.

In a first aspect, at least one embodiment of the present application provides a torque measurement device that includes a mounting bracket, a lift assembly, a rotation assembly, and a torque measurement assembly. The mounting bracket is arranged on the lifting assembly; the rotating component is arranged on the mounting bracket; the torsion measuring assembly realizes lifting movement under the driving and guiding of the lifting assembly, and the torsion measuring assembly realizes rotation movement under the driving of the rotating assembly.

Wherein, torsion measurement subassembly includes: a measuring pressure head is pressed against the workpiece to be measured; the torque sensor is used for receiving the torque signal and outputting a torque measurement result; the adjusting component comprises an elastic piece, the adjusting component is connected between the measuring pressure head and the torsion sensor, the distance between the measuring pressure head and the torsion sensor can be changed by stretching or compressing the adjusting component, and the measuring direction of the measuring pressure head and the initial elastic direction of the elastic piece before bending can be a certain included angle by bending the adjusting component.

In a second aspect, at least one embodiment of the present application provides a torque clamping measurement system comprising the torque measurement device of any one of the embodiments of the first aspect and a workpiece clamping device to which a workpiece to be measured is clamped.

For example, in some embodiments of the first or second aspects of the present application, the first connector is fixed at one end to the torsion sensor; and one end of the second connector is fixed on the measuring pressure head, and the other end of the first connector is connected with the other end of the second connector through the elastic piece.

For example, in some embodiments of the first or second aspects of the present application, an encapsulation element is wrapped around the exterior of the elastic member, the encapsulation element being used to secure the elastic member.

For example, in some embodiments of the first or second aspect of the present application, the adjustment assembly further comprises: the core rod is inserted between the first connector and the second connector and used for guiding and limiting the displacement of the adjusting assembly.

For example, in some embodiments of the first or second aspect of the present application, the first connector has a first step inside, one end of the mandrel is capable of fitting into any one of the first steps, and the other end of the mandrel is fixedly inserted into the second connector; or a second step is arranged in the second connector, one end of the core rod can be assembled to any section of the second step, and the other end of the core rod is fixedly inserted into the first connector.

For example, in some embodiments of the first or second aspect of the present application, the torsion measurement assembly further comprises: the first coupler is fixedly arranged between the torsion sensor and the adjusting component, the first coupler is used for connecting the torsion sensor with the adjusting component, the second coupler is fixedly arranged between the measuring pressure head and the adjusting component, and the second coupler is used for connecting the measuring pressure head with the adjusting component; the torque measuring device further comprises a clamping limiting assembly which is arranged on the mounting bracket and used for clamping the second coupler, and the clamping limiting assembly is used for limiting the second coupler to shake along the radial direction.

For example, in some embodiments of the second aspect of the present application, the workpiece holding device comprises: the clamping device body is provided with a clamping groove, and the workpiece to be tested is arranged in the clamping groove; one end of the positioning spring is fixed on the clamping device body; the jacking block is arranged on the clamping device body in a sliding manner and is abutted against the workpiece to be tested through the positioning spring; the clamping state switching assembly is connected with the positioning spring or the top block and is used for changing the expansion and contraction amount of the positioning spring so as to switch the clamping state of the workpiece to be detected.

For example, in some embodiments of the second aspect of the present application, the clamping state switching assembly includes: the automatic positioning component comprises a positioning driving piece and a positioning rod, wherein the positioning rod is connected between the positioning driving piece and the positioning spring, and the positioning driving piece can drive the positioning rod to change the expansion and contraction amount of the positioning spring.

For example, in some embodiments of the second aspect of the present application, the positioning drive includes a positioning rod connection slot into which the positioning rod is slidably coupled; the clamping state switching assembly further comprises a manual positioning shifting piece, wherein the manual positioning shifting piece is connected with the jacking block or is of an integrated structure with the jacking block, and the stretching amount of the positioning spring can be changed by stirring the manual positioning shifting piece, so that the positioning rod is driven to slide in the positioning rod connecting groove.

The torque measuring device adopts soft contact, the distance between the measuring pressure head and the torque sensor can be changed through stretching or compressing the adjusting component, and the measuring direction of the measuring pressure head and the initial elastic force direction of the elastic piece before bending can be formed into a certain included angle through the bending adjusting component. The adjusting component can adjust the measuring height and the measuring angle of the measuring pressure head, ensure that the measuring pressure head is fully contacted with the part, and can not hurt the part, thereby ensuring the accuracy of the measuring result.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic structural view of a torque measuring device according to an exemplary embodiment of the present application.

Fig. 2 illustrates a schematic structural diagram of a torque measurement device according to some embodiments of the present application.

Fig. 3 illustrates an overall structural schematic of an adjustment assembly according to some embodiments of the present application.

Fig. 4 illustrates an internal structural schematic of an adjustment assembly according to some embodiments of the present application.

Fig. 5 shows a schematic internal structure of an adjusting assembly according to another embodiment of the present application.

Fig. 6 shows a schematic structural diagram of a torque measuring device according to another embodiment of the present application.

Fig. 7 shows a schematic structural diagram of a torque grip measurement system according to an example embodiment of the present application.

Fig. 8 shows a schematic structural view of a workpiece holding device according to an exemplary embodiment of the present application.

Fig. 9 shows a cross-sectional view of a workpiece clamping device according to an example embodiment of the application.

Fig. 10 shows an enlarged schematic view of the structure of the automatic positioning member according to the embodiment of the present application.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.

The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the aspects of the application can be practiced without one or more of the specific details, or with other methods, components, materials, devices, or the like. In these instances, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail.

The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.

The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

A torque measuring device according to an embodiment of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, the torque measuring apparatus of the exemplary embodiment includes a mounting bracket 100, a lifting assembly 200, a rotating assembly 300, and a torque measuring assembly 400.

The mounting bracket 100 is disposed on the lifting assembly 200. The rotating assembly 300 is provided to the mounting bracket 100. The shape and the size of the mounting bracket 100 can be selected according to the layout requirements. The torsion measuring assembly 400 performs a lifting motion under the driving and guiding of the lifting assembly 200, and the torsion measuring assembly 400 performs a rotating motion under the driving of the rotating assembly 300. The specific arrangement positions of the lifting assembly 200 and the rotating assembly 300 on the mounting bracket 100 can be flexibly adjusted according to the measurement requirements of the torsion measuring assembly 400.

Alternatively, the rotary assembly 300 may be configured as an assembly having any form of rotary drive source, such as a rotary motor, a cylinder, or the like.

Torsion measurement assembly 400 includes a measurement ram 410, a torsion sensor 420, and an adjustment assembly 430. The measuring ram 410 is pressed against the pressing surface of the workpiece to be measured, and the measuring ram 410 is driven by the rotating assembly 300 to generate a rotating trend relative to the workpiece to be measured. The torque sensor 420 obtains torque information of the workpiece to be measured by detecting the torque signal transmitted by the measuring ram 410, and outputs a corresponding torque measurement result.

The adjusting component 430 comprises an elastic member 433, the adjusting component 430 is connected between the measuring ram 410 and the torsion sensor 420, the distance between the measuring ram 410 and the torsion sensor 420 can be changed by stretching or compressing the adjusting component 430, and the measuring direction of the measuring ram 410 and the initial elastic force direction of the elastic member 433 before bending can form a certain included angle by bending the adjusting component 430.

In accordance with the embodiments of the present application, there may be various ways of implementing the stretching and bending of the adjusting assembly 430 during the actual configuration process, for example, the adjusting assembly 430 is a structure integrated with a linear spring, a torsion spring, etc. and having a stretchable and bendable property, and the present application is not limited thereto.

The distance between the measuring ram 410 and the torsion sensor 420 can be changed by stretching or compressing the adjusting assembly 430, and the measuring direction of the measuring ram 410 and the initial elastic force direction of the elastic member 433 before bending can be made to form a certain included angle by bending the adjusting assembly 430. This arrangement allows the measurement ram 410 to be in soft contact with the workpiece to be measured during torque measurement. That is, adjustments to the actual measured height and measured angle of the measuring ram 410 may be made. Specifically, when the measurement pressure head 410 presses the surface of the workpiece to be measured, the adjustment assembly 430 can enable the measurement pressure head 410 to generate adjustment of the measurement height and the measurement angle, so that the measurement pressure head 410 can be accurately pressed against the surface of the workpiece to be measured, and damage to the workpiece to be measured is avoided.

Fig. 2 illustrates a schematic structural diagram of a torque measurement device according to some embodiments of the present application. Fig. 3 illustrates an overall structural schematic of an adjustment assembly according to some embodiments of the present application. Fig. 4 illustrates an internal structural schematic of an adjustment assembly according to some embodiments of the present application.

Referring to fig. 2-4, the torque measuring device of some embodiments includes a mounting bracket 100, a lifting assembly 200, a rotating assembly 300, and a torque measuring assembly 400.

An adjustment assembly 430 is coupled between the measurement ram 410 and the torsion sensor 420, the adjustment assembly 430 including a first connection 431, a second connection 432, a spring 433, an encapsulation element 434, and a mandrel 435.

One end of the first connection 431 is fixed to the torsion sensor 420. One end of the second connection head 432 is fixed to the measuring ram 410, and the other end of the first connection head 431 and the other end of the second connection head 432 are connected through an elastic member 433. Before the measuring ram 410 is pressed against the pressing surface of the workpiece to be measured, the adjusting component 430 can be integrally stretched or bent by stretching, shrinking or laterally twisting the elastic component 433, so that the pressing height and the pressing angle of the measuring ram 410 are in an adjustable state.

During assembly of the adjustment assembly 430, the encapsulation member 434 is wrapped around the elastic member 433, and the encapsulation member 434 is used to fix the elastic member 433. Specifically, the encapsulation element 434 is configured to secure the elastic member 433 between the first connection point 431 and the second connection point 432 using an encapsulation process, thereby achieving positioning of the elastic member 433 on the first connection point 431 and the second connection point 432. In the actual configuration process, the selection and the size of the encapsulating element 434 can be flexibly adjusted according to the fixing requirement of the elastic member 433 on the first connector 431 and the second connector 432, which is not limited herein.

In order to maintain a certain coaxiality of the first connection head 431 or the second connection head 432 during the axial movement, a core rod 435 is further provided between the first connection head 431 and the second connection head 432. The core rod 435 has a certain rigidity, and the core rod 435 can guide the axial movement of the first connection head 431 or the second connection head 432 during the axial movement of the first connection head 431 or the second connection head 432. When the first connection head 431 or the second connection head 432 swings around the shaft, the core rod 435 can limit the swing amplitude around the shaft, so that the condition that the first connection head 431 or the second connection head 432 swings around the shaft too much to cause difficult return is avoided.

When the elastic member 433 is encapsulated between the first connection head 431 and the second connection head 432, the mandrel 435 may be fixed on the first connection head 431 and the second connection head 432 by using a fixing member such as a screw 436 to ensure the coaxiality and the positional dimensional relationship between the first connection head 431 and the second connection head 432, and the fixing member is detached after the encapsulation is completed.

In order to enable the measurement ram 410 to reliably press against the pressing surface of the workpiece to be measured when the pressing surface of the workpiece to be measured on the workpiece holding device is tilted, the first connection head 431 of some embodiments may be configured to have a plurality of first steps 4311 at the mounting position of the core rod 435, and one end of the core rod 435 can be assembled to any one of the first steps 4311. At this time, the other end of the core rod 435 is fixedly inserted into the second connector 432, during the use, the core rod 435 uses the fixed point in the second connector 432 as a fulcrum, and when the first connector 431 or the second connector 432 swings around the shaft under the driving of the elastic member 433, the core rod 435 and the connecting end in the first connector 431 can be assembled and inserted into any section of the first step 4311, so as to realize temporary installation and positioning of the core rod 435.

Similarly, referring to fig. 5, during the actual configuration, the second connector 432 may also be configured to have multiple sections of the second step 4321 therein, such that one end of the core rod 435 can be fitted to any one of the sections of the second step 4321. At this time, the other end of the core rod 435 is inserted into the first connector 431, and in the use process, the core rod 435 can use the fixed point in the first connector 431 as a fulcrum, and when the first connector 431 or the second connector 432 is driven by the elastic member 433 to generate a swinging around the shaft, the connecting ends in the core rod 435 and the second connector 432 can be assembled and inserted into any section in the second step 4321, so as to realize temporary installation and positioning of the core rod 435.

Referring to fig. 6, the torque measuring apparatus of another embodiment includes a mounting bracket 100, a lifting assembly 200, a rotating assembly 300, a torque measuring assembly 400, and a clamping limit assembly 500.

The mounting bracket 100 is disposed on the lifting assembly 200. The rotating assembly 300 is also provided to the mounting bracket 100. The shape and the size of the mounting bracket 100 can be selected according to the layout requirements. The torsion measuring assembly 400 performs a lifting motion under the driving and guiding of the lifting assembly 200, and the torsion measuring assembly 400 performs a rotating motion under the driving of the rotating assembly 300. The specific arrangement positions of the lifting assembly 200 and the rotating assembly 300 on the mounting bracket 100 can be flexibly adjusted according to the measurement requirements of the torsion measuring assembly 400.

Torsion measurement assembly 400 includes a measurement ram 410, a torsion sensor 420, an adjustment assembly 430, a first coupling 440, and a second coupling 450. The measuring ram 410 is pressed against the pressing surface of the workpiece to be measured, and the measuring ram 410 is driven by the rotating assembly 300 to generate a rotating trend relative to the workpiece to be measured. The torque sensor 420 obtains torque information of the workpiece to be measured by detecting the torque signal transmitted by the measuring ram 410, and outputs a corresponding torque measurement result.

The first coupling 440 is fixedly disposed between the torsion sensor 420 and the adjustment assembly 430, and the first coupling 440 is used to connect the torsion sensor 420 and the adjustment assembly 430. In the actual torque measurement process, in view of the fact that the adjusting component 430 may be in a state that needs to be adjusted, in order to avoid interference of displacement of the adjusting component 430 on measurement accuracy of the torque sensor 420, by providing the first coupling 440 between the torque sensor 420 and the adjusting component 430 to perform measurement torque signal transmission, measurement accuracy of torque measurement can be enhanced.

A second coupling 450 is fixedly disposed between the measurement ram 410 and the adjustment assembly 430, the second coupling 450 being configured to couple the measurement ram 410 to the adjustment assembly 430. When the measuring ram 410 abuts against the workpiece to be measured, the second coupling 450 can generate axial movement or axial swinging through the axial movement or axial swinging of the adjusting assembly 430, so as to drive the measuring ram 410 to generate axial movement or axial swinging, and adjust the position relationship between the measuring ram 410 and the abutting surface of the workpiece to be measured, so that the measuring ram 410 can accurately abut against the abutting surface of the workpiece to be measured.

The clamp limit assembly 500 includes a clamp driver 510 and a clamp jaw 520. A clamp driver 510 is provided to the mounting bracket 100, and a clamp jaw 520 is connected to the clamp driver 510. During the adjustment of the measuring position by the torque measuring device, the clamping jaw 520 can grip around the second coupling 450, limiting the radial displacement of the second coupling 450, limiting the radial wobble of the second coupling 450. This set-up state can prevent the second coupling 450, the measuring ram 410 and the adjusting assembly 430 from being excessively shaken during the adjustment of the measuring position, and ensure the accuracy of the torque measurement result.

The torque measuring device of this application simple structure, the installation of torsion measuring assembly 400 of being convenient for, the inside spare part of device light in weight, at the in-process of measuring, the moment of inertia that the spare part of light quality produced is controllable, can effectually avoid influencing measurement accuracy because moment of inertia is too big.

Fig. 7 shows a schematic structural diagram of a torque grip measurement system according to an example embodiment of the present application. Fig. 8 shows a schematic structural view of a workpiece holding device according to an exemplary embodiment of the present application. Fig. 9 shows a cross-sectional view of a workpiece clamping device according to an example embodiment of the application. Fig. 10 shows an enlarged schematic view of the structure of the automatic positioning member according to the embodiment of the present application.

With further reference to fig. 7-10, the torque clamp measurement system includes the torque measurement device of any of the embodiments described above, as well as a workpiece clamp device 900.

The workpiece to be measured by the torque measuring device is clamped on the workpiece clamping device 900. The clamping surface of the workpiece clamping device 900 is perpendicular or approximately perpendicular to the axial direction of the torque measuring device, so that the measuring ram 410 can accurately press against the pressing surface of the workpiece to be measured.

The workpiece clamping device 900 can be configured to include a clamping device body 910, a positioning spring 920, a top block 930, and a clamping state switching assembly 940.

The clamping device body 910 has a clamping groove 911, and a workpiece to be measured is disposed inside the clamping groove 911. One end of the positioning spring 920 is fixed to the clamping device body 910, the top block 930 is slidably disposed in the clamping device body 910, and the top block 930 abuts against the other end of the positioning spring 920. In the process of clamping and positioning, the positioning spring 920 is in a compressed state, and the top block 930 abuts against the workpiece to be tested through the elastic force generated by the compression of the positioning spring 920, so that the workpiece to be tested is clamped and positioned in the clamping groove 911.

The clamping state switching component 940 is connected to the positioning spring 920 or the top block 930, and the clamping state switching component 940 is used for changing the expansion and contraction amount of the positioning spring 920 to switch the clamping state of the workpiece to be tested. Specifically, the positioning spring 920 or the top block 930 can be driven to generate displacement by moving the clamping state switching component 940, so as to change the clamping state of the top block 930 on the workpiece to be tested, and realize the switching of the clamping state of the workpiece to be tested.

The positioning spring 920 is disposed in the guide groove 912 of the clamping device body 910, and the expansion and contraction direction of the positioning spring 920 can be restricted and positioned by the guide groove 912, so as to prevent the position of the positioning spring 920 or the top block 930 from being deviated.

The clamp state switching assembly 940 can be configured with multiple sets of switching power sources, such as manual switching, electric assist switching, pneumatic switching, and the like. For example, the grip state switching assembly 940 can be configured to include a manual positioning paddle 941 and an automatic positioning component 942.

The manual positioning pulling piece 941 is connected with the top block 930, or the manual positioning pulling piece 941 and the top block 930 are in an integrated structure, and the expansion and contraction amount of the positioning spring 920 can be changed by pulling the manual positioning pulling piece 941. Optionally, the manual positioning tab 941 may be configured as a tab of any shape, and according to the clamping positioning requirement and the preference of the operator, the manual positioning tab 941 may be modified accordingly, so as to reduce the thrust required by the operator to dial the manual positioning tab 941. When the workpiece to be measured needs to be loosened, an operator can push the manual positioning pulling piece 941 to move, and drive the top block 930 to be far away from and loosen the workpiece to be measured, so that the positioning spring 920 is further compressed.

The automatic positioning member 942 includes a positioning drive 9421 and a positioning rod 9422, the positioning rod 9422 being connected between the positioning drive 9421 and the top block 930. When the clamping of the workpiece to be detected needs to be released, the positioning rod 9422 can be driven to move under the driving of the positioning driving piece 9421, and the top block 930 is driven to compress the positioning spring 920, so that the top block 930 does not clamp the workpiece to be detected any more. When the workpiece to be tested needs to be clamped, the positioning rod 9422 can be driven to move under the driving of the positioning driving member 9421, and the top block 930 is driven to clamp the workpiece to be tested under the auxiliary action of the positioning spring 920. Alternatively, the positioning rod 9422 and the top block 930 can be configured as a unitary structure, and can be fixedly connected by a connecting member, which is not particularly limited herein.

The automatic positioning component 942 and the manual positioning shifting piece 941 work independently, and the two adjusting modes are not affected. In the process of switching the clamping state of the workpiece to be detected, an operator can select a specific adjusting mode according to the requirement.

The positioning drive 9421 includes a positioning rod attachment slot 94211 with the positioning rod 9422 slidably attached within the positioning rod attachment slot 94211.

For example, a specifically tuned course of action may be as follows:

when the automatic positioning component 942 is used for adjustment, the positioning driving member 9421 drives the positioning rod 9422 to extend a certain distance, and at this time, the B surface of the positioning rod 9422 is not abutted against the a surface of the positioning rod connecting groove 94211, and the top block 930 is not yet pressed against the workpiece to be measured. Because the positioning spring 920 is in a compressed state before, the movement of the positioning rod 9422 driving the top block 930 releases the compression of the positioning spring 920, and under the elastic force of the positioning spring 920, the B surface of the positioning rod 9422 is driven to abut against the a surface of the positioning rod connecting groove 94211, so that the top block 930 is pressed against the workpiece to be measured. The last jacking stroke is completed through the elastic force of the positioning spring 920, so that the pressure of the jacking block 930 to the workpiece to be tested is not excessive, and the workpiece to be tested is prevented from being damaged due to the fact that the positioning driving piece 9421 directly drives the workpiece to be tested to be jacked.

When the workpiece to be measured needs to be loosened, the positioning driving member 9421 can be reversed to drive the positioning rod 9422 to shrink, the positioning spring 920 is compressed, and the jacking block 930 is released to jack the workpiece to be measured.

When the manual positioning pulling piece 941 is used for adjustment, the jacking block 930 can jack the workpiece to be measured under the elastic force of the positioning spring 920. At this time, if the workpiece to be measured needs to be loosened, the manual positioning pulling piece 941 can drive the top block 930 to move, and the movement of the top block 930 can drive the positioning rod 9422 to move in the positioning rod connecting groove 94211, so as to provide a displacement allowance for the movement of the manual positioning pulling piece 941. The top block 930 compresses the positioning spring 920 in the moving process, and releases the top pressure of the top block 930 to the workpiece to be tested.

In the workpiece clamping device of the torque clamping measurement system of the embodiment, a plurality of sets of driving modes are provided, each set of driving mode operates independently, work flows are not mutually interfered, and each set of driving mode can realize clamping, positioning or loosening of a workpiece to be tested. The workpiece clamping device can adopt a positioning mode combining automatic operation and manual operation, and when the device cannot start automatic operation, a manual program is started, and the feeding and discharging of the workpiece to be tested can be maintained.

Exemplary embodiments of the present application are specifically illustrated and described above. It is to be understood that this application is not limited to the details of construction, arrangement or method of implementation described herein; on the contrary, the application is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A torque measurement device, comprising:

a mounting bracket;

the mounting bracket is arranged on the lifting assembly;

the rotating assembly is arranged on the mounting bracket;

the torsion measuring assembly realizes lifting movement under the driving and guiding of the lifting assembly, and the torsion measuring assembly realizes rotation movement under the driving of the rotating assembly;

wherein, torsion measurement subassembly includes:

a measuring pressure head is pressed against the workpiece to be measured;

the torque sensor is used for receiving the torque signal and outputting a torque measurement result;

the adjusting component comprises an elastic piece, the adjusting component is connected between the measuring pressure head and the torsion sensor, the distance between the measuring pressure head and the torsion sensor can be changed by stretching or compressing the adjusting component, and the measuring direction of the measuring pressure head and the initial elastic direction of the elastic piece before bending can be a certain included angle by bending the adjusting component.

2. The torque measuring device of claim 1, wherein the adjustment assembly comprises:

the first connecting head, one end is fixed to the torsion sensor;

and one end of the second connector is fixed on the measuring pressure head, and the other end of the first connector is connected with the other end of the second connector through the elastic piece.

3. The torque measuring device of claim 2, wherein the adjustment assembly further comprises:

and the encapsulation element is coated outside the elastic piece and is used for fixing the elastic piece.

4. The torque measuring device of claim 2, wherein the adjustment assembly further comprises:

the core rod is inserted between the first connector and the second connector and used for guiding and limiting the displacement of the adjusting assembly.

5. The torque measuring device of claim 4, wherein,

the first connector is internally provided with a first step, one end of the core rod can be assembled to any section of the first step, and the other end of the core rod is fixedly inserted into the second connector; or (b)

The second connector is internally provided with a second step, one end of the core rod can be assembled to any section of the second step, and the other end of the core rod is fixedly inserted into the first connector.

6. The torque measuring device of claim 1, wherein,

the torsion measuring assembly further comprises a first coupler and a second coupler, the first coupler is fixedly arranged between the torsion sensor and the adjusting assembly, the first coupler is used for connecting the torsion sensor and the adjusting assembly, the second coupler is fixedly arranged between the measuring pressure head and the adjusting assembly, and the second coupler is used for connecting the measuring pressure head and the adjusting assembly;

the torque measuring device further comprises a clamping limiting assembly which is arranged on the mounting bracket and used for clamping the second coupler, and the clamping limiting assembly is used for limiting the second coupler to shake along the radial direction.

7. A torque grip measurement system, comprising:

the torque measurement device of any one of claims 1-6;

and the workpiece clamping device is used for clamping the workpiece to be tested.

8. The torque clamp measurement system of claim 7, wherein the workpiece clamp device comprises:

the clamping device body is provided with a clamping groove, and the workpiece to be tested is arranged in the clamping groove;

one end of the positioning spring is fixed on the clamping device body;

the jacking block is arranged on the clamping device body in a sliding manner and is abutted against the workpiece to be tested through the positioning spring;

the clamping state switching assembly is connected with the positioning spring or the top block and is used for changing the expansion and contraction amount of the positioning spring so as to switch the clamping state of the workpiece to be detected.

9. The torque clamp measurement system of claim 8, wherein the clamp state switching assembly comprises:

the automatic positioning component comprises a positioning driving piece and a positioning rod, wherein the positioning rod is connected between the positioning driving piece and the positioning spring, and the positioning driving piece can drive the positioning rod to change the expansion and contraction amount of the positioning spring.

10. The torque clamp measurement system of claim 9, wherein,

the positioning driving piece comprises a positioning rod connecting groove, and the positioning rod is connected in the positioning rod connecting groove in a sliding manner;

the clamping state switching assembly further comprises a manual positioning shifting piece, wherein the manual positioning shifting piece is connected with the jacking block or is of an integrated structure with the jacking block, and the stretching amount of the positioning spring can be changed by stirring the manual positioning shifting piece, so that the positioning rod is driven to slide in the positioning rod connecting groove.