CN117213683A

CN117213683A - Clamping force testing method and testing device

Info

Publication number: CN117213683A
Application number: CN202311167404.5A
Authority: CN
Inventors: 胡广海; 向永军; 陈振城; 左志军; 雷险峰
Original assignee: Guangdong Discrete Zhizao Technology Innovation Co ltd
Current assignee: Guangdong Discrete Zhizao Technology Innovation Co ltd
Priority date: 2023-09-11
Filing date: 2023-09-11
Publication date: 2023-12-12

Abstract

The application provides a clamping force testing method and a testing device, wherein the clamping force testing method comprises the following steps: driving a clamping arm of a test piece to be tested to move to a test position: adjusting the position of the mounting end of the adjusting piece relative to the clamping arm so that the mounting end and the clamping arm are separated by a preset clamping distance; driving the clamping arm to move relative to the mounting end to enable a load cell to be mounted on the mounting end; the clamping arm is driven to move to the testing position in a direction approaching the mounting end, so that the force measuring piece is clamped between the clamping arm and the mounting end to measure the clamping force of the clamping arm. The preset clamping interval is controllable in value, and the same or smaller difference of the clamping force test values of the same test piece to be tested in the clamping force test is ensured, so that the actual size of the clamping force of the clamping arm can be accurately obtained, and the reliability and the accuracy of the clamping force test method and the clamping force test device are improved.

Description

Clamping force testing method and testing device

Technical Field

The application relates to the technical field of clamping force testing, in particular to a clamping force testing method and a clamping force testing device.

Background

The clamping cylinder is an auxiliary machining tool commonly used in automobile production equipment and is mainly used for workpiece clamping and workpiece positioning. During production, the clamping force of the clamping cylinder is one of the main parameters of interest. Because the clamping force is not constant, that is, the clamping force of the clamping cylinder can change along with the change of the clamped dimension (that is, the distance between the upper clamping arm and the lower clamping arm) of the clamped workpiece, the same clamping cylinder can have larger numerical difference when the clamping force measurement is implemented, and the actual size of the required clamping force cannot be accurately obtained.

Disclosure of Invention

Based on the above, it is necessary to provide a clamping force testing method and a testing device for solving the problem that the current clamping air cylinder has large numerical difference when the clamping force measurement is performed, and the actually required clamping force cannot be accurately obtained.

The technical scheme is as follows:

in one aspect, a method for testing a clamping force is provided, comprising:

driving a clamping arm of a test piece to be tested to move to a test position:

adjusting the position of the mounting end of the adjusting piece relative to the clamping arm so that the mounting end and the clamping arm are separated by a preset clamping distance;

driving the clamping arm to move relative to the mounting end to enable a load cell to be mounted on the mounting end;

driving the clamping arm to move to the testing position in a direction approaching the mounting end, so that the force measuring piece is clamped between the clamping arm and the mounting end;

and measuring the clamping force of the clamping arm.

The technical scheme is further described as follows:

in one embodiment, before the step of driving the clamping arm of the test piece to be tested to the testing position, the method further comprises:

the position of the action part between the clamping arm and the force measuring member is marked on the clamping arm.

In one embodiment, in the step of driving the clamp arm of the test piece to be tested to move to the testing position, the method includes:

the clamping body drives the clamping arm to rotate, so that the clamping arm rotates to the horizontal direction and is positioned at the testing position.

In one embodiment, in the step of adjusting the position of the mounting end of the adjustment member relative to the clamping arm such that the mounting end is spaced from the clamping arm by a preset clamping distance, the method includes:

the adjusting piece is arranged below the acting part of the clamping arm, and the mounting end of the adjusting piece is adjusted to lift along the vertical direction, so that the distance between the mounting end and the acting part along the vertical direction is a preset clamping distance.

In one embodiment, after the step of driving the clamp arm to move to the test position in a direction approaching the mounting end such that the load cell is clamped between the clamp arm and the mounting end to measure the clamping force of the clamp arm, the method further comprises:

and adjusting the value of the preset clamping interval so that the force measuring piece can measure the clamping force of the clamping arm at different preset clamping intervals.

and adjusting the position of an action part between the clamping arm and the force measuring piece so that the force measuring piece can measure clamping forces at different positions on the clamping arm.

In one embodiment, the step of adjusting the position of the acting portion between the clamping arm and the force measuring member so that the force measuring member can measure the clamping force at different positions on the clamping arm includes:

the position of the adjusting piece relative to the clamping arm is adjusted so as to adjust the position of an acting part between the clamping arm and the force measuring piece, and the force measuring piece can measure clamping forces at different positions on the clamping arm.

On the other hand, a testing device is provided for realizing the clamping force testing method, testing device includes regulating part and dynamometer, the regulating part interval sets up in the one side of the clamping arm of test piece that awaits measuring, the regulating part includes regulation body and installation end, the dynamometer install in the installation end, the installation end set up in the top of regulation body, regulation body with the installation end transmission is connected, makes the installation end can drive the dynamometer is along being close to or keep away from the direction reciprocating motion of clamping arm.

In one embodiment, the test device further comprises a display communicatively coupled to the load cell.

In one embodiment, the testing device further comprises a moving mechanism, wherein the moving mechanism is located at the bottom of the adjusting body and is in transmission connection with the adjusting body, so that the adjusting body can drive the force measuring piece to move through the mounting end, and the position of the acting part between the clamping arm and the force measuring piece on the clamping arm is adjusted.

Compared with the clamping force testing method of the prior clamping cylinder, the clamping force testing method and the testing device have at least the following advantages: (1) The preset clamping interval is controllable in value, and the fact that the test value of the clamping force is the same or smaller when the same test piece to be tested is subjected to the clamping force test is guaranteed, so that the clamping force of the same force arm can be accurately obtained, and the reliability and the accuracy of the clamping force test method and the testing device are improved. (2) The clamping force test of the test piece to be tested under the condition of different preset clamping distances and the clamping force test of the test piece to be tested with different models and different specifications can be realized by adjusting the adjusting piece, so that the applicability of the clamping force test method and the testing device is improved. (3) The testing device corresponding to the clamping force testing method is easy to build, simple and flexible to operate, and can finish the clamping force test on the clamping arm under the condition that only one clamping arm exists, so that the convenience and the testing cost of the clamping force testing method and the testing device are improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.

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

FIG. 1 is a flow chart of a clamping force testing method of one embodiment.

FIG. 2 is a flow chart of a clamping force testing method of one embodiment.

FIG. 3 is a schematic diagram of a testing apparatus according to an embodiment.

Reference numerals illustrate:

10. a testing device; 100. an adjusting member; 110. adjusting the body; 120. a mounting end; 200. a force measuring member; 300. a test piece to be tested; 310. a clamping arm; 320. clamping the body; 400. and a display member.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

As shown in fig. 1, in one embodiment, a clamping force testing method is provided, comprising at least the following steps:

s100, driving the clamping arm 310 of the test piece 300 to be tested to move to the testing position. In this way, by positioning the clamping arm 310 so as to mount the adjusting member 100 to one side of the clamping arm 310, it is ensured that the adjusting member 100 can be matched with the clamping arm 310 to clamp the force measuring member 200, and convenience of the clamping force testing method is improved.

It should be noted that the test position refers to a position of the clamping arm 310 relative to the clamping body 320 when the clamping arm 310 clamps the load cell 200 to perform a clamping force test.

It should be noted that the test piece 300 to be tested may be a clamping cylinder, a clamping hydraulic cylinder or other clamping structures. In this embodiment, the test piece 300 to be tested is a clamping cylinder, and the clamping cylinder includes a clamping arm 310 and a clamping body 320, where the clamping body 320 is in transmission connection with the clamping arm 310, so that the clamping arm 310 can rotate around a rotation axis center (shown as O in fig. 3) of the clamping body 320.

It should be noted that, the driving of the clamping arm 310 of the test piece 300 to move to the testing position may be driving the clamping arm 310 of the test piece 300 to rotate to the testing position or driving the clamping arm 310 of the test piece 300 to translate to the testing position. The clamping cylinder refers to a pneumatic unit of an automobile equipment production line for clamping workpieces, the opening/closing action time of the clamping arm 310 can be adjusted by adjusting the throttle valve, and the clamping requirement of different clamping workpieces can be met by changing the shape of the clamping arm 310.

As shown in fig. 2, in this embodiment, S110, the clamping body 320 drives the clamping arm 310 to rotate, so that the clamping arm 310 rotates to the horizontal direction and is located at the testing position. In this way, the clamping arms 310 and the force measuring piece 200 can be in surface contact, so that the force measuring piece 200 is uniformly stressed, damage to the force measuring piece 200 caused by overlarge clamping force of the clamping arms 310 is avoided, and reliability of the clamping force testing method is improved.

As shown in the view of fig. 3, in particular, in the present embodiment, the clamping body 320 is rotatably connected to one end of the clamping arm 310, such that one end of the clamping arm 310 remote from the clamping body 320 can rotate counterclockwise or clockwise around the other end of the clamping arm 310 near the clamping body 320.

S200, adjusting the position of the mounting end 120 of the adjusting member 100 relative to the clamping arm 310, such that the mounting end 120 is spaced apart from the clamping arm 310 by a preset clamping distance (as shown by the length S in fig. 3, i.e. the distance between the acting portion S of the force measuring member 200 and the clamping arm 310 and the acting portion K of the force measuring member 200 and the mounting end 120). In this way, by controlling the value of the preset clamping interval, the same or smaller difference of the test values of the clamping force when the same test piece 300 to be tested is ensured, so that the actual magnitude of the clamping force of the clamping arm 310 can be accurately obtained, and the reliability and accuracy of the clamping force testing method are improved.

It should be noted that the adjusting member 100 may be an adjusting bracket, an adjusting sliding rail, a lifting platform, or other adjusting structures. The adjusting member 100 and the test piece 300 to be tested may be mounted on the same workpiece or may be separately and independently mounted.

As shown in fig. 2, in the embodiment, S210, the adjusting member 100 is installed below the acting portion of the clamping arm 310, and the mounting end 120 of the adjusting member 100 is adjusted to be lifted in the vertical direction, so that the distance between the mounting end 120 and the acting portion in the vertical direction is the preset clamping distance. In this way, the acting parts of the mounting end 120 and the clamping arm 310 are always located on the same vertical line, so that the acting parts of the mounting end 120 and the clamping arm 310 can be spaced by a preset clamping distance and matched with the clamping force measuring piece 200, and the reliability and accuracy of the clamping force testing method are improved.

The action part may be an action point, an action line, or an action surface. In other words, the clamping arm 310 may be in point contact, line contact or surface contact with the load cell 200.

Specifically, in this embodiment, the acting portion is provided as the acting surface, and the mounting end 120 is provided with a mounting surface for mounting the load cell 200, and the vertical distance between the mounting end 120 and the acting portion is the vertical distance between the acting surface and the mounting surface.

S300, driving the clamping arm 310 to move relative to the mounting end 120, so as to be able to mount the load cell 200 on the mounting end 120. Thus, by mounting the load cell 200 between the mounting end 120 and the active portion of the clamp arm 310, the load cell 200 is facilitated to detect the magnitude of the clamping force of the clamp arm 310 in real time.

As seen in fig. 3, driving the clamp arm 310 relative to the mounting end 120 may be such that driving the clamp arm 310 counter-clockwise rotates the clamp arm 310 relative to the mounting end 120 to increase the spacing between the clamp arm 310 and the mounting end 120, ensuring that the load cell 200 can be mounted on the mounting end 120.

In other embodiments, the movement of the clamping arm 310 relative to the mounting end 120 may be by driving the clamping arm 310 up and down, such that the clamping arm 310 translates in a vertical direction relative to the mounting end 120 to increase the spacing between the clamping arm 310 and the mounting end 120, ensuring that the load cell 200 can be mounted on the mounting end 120.

In particular, in the present embodiment, the force measuring member 200 may be configured as a force sensor, and the force sensor converts the force into an electrical signal and transmits the electrical signal to the processor, so as to obtain the clamping force of the clamping arm 310. In other embodiments, load cell 200 may also be a load cell.

S400, the clamping arm 310 is driven to move to the testing position along the direction approaching the mounting end 120, so that the force measuring member 200 is clamped between the clamping arm 310 and the mounting end 120.

S500, measuring the clamping force of the clamping arm 310. In this way, the clamped dimension of the force measuring member 200 is the preset clamping interval, so that the force measuring member 200 can stably and reliably measure the actual clamping force of the clamping arm 310, and the reliability and accuracy of the clamping force testing method are improved.

As shown in fig. 2, in one embodiment, before the step of driving the clamping arm 310 of the test piece 300 to move to the testing position, the method further includes a step S600 of marking a position of an acting portion (shown as P in fig. 3) between the clamping arm 310 and the load cell 200 on the clamping arm 310. In this way, the adjusting member 100 can use the acting portion on the clamping arm 310 as a reference object, so that the adjusting member 100 can be quickly and accurately installed at a preset position on one side of the clamping arm 310, and the adjusting member 100 and the acting portion of the clamping arm 310 are spaced by a preset clamping distance, thereby improving the testing efficiency of the clamping force testing method.

As shown in fig. 1, in one embodiment, after the step of driving the clamping arm 310 to move to the testing position in a direction approaching the mounting end 120, such that the force measuring member 200 is clamped between the clamping arm 310 and the mounting end 120 to measure the clamping force of the clamping arm 310, the method further includes a step 700 of adjusting the value of the preset clamping interval, such that the force measuring member 200 can measure the clamping force of the clamping arm 310 at different preset clamping intervals. In this way, by adjusting the adjusting member 100, the preset clamping distance between the mounting end 120 and the acting portion of the clamping arm 310 is adjustable, so as to implement the clamping force test on the clamping arm 310 under different preset clamping distances, and improve the applicability of the clamping force test method.

S800, adjusting the position of the adjusting piece 100 relative to the clamping arm 310 to adjust the position of an acting part between the clamping arm 310 and the force measuring piece 200, so that the force measuring piece 200 can measure clamping forces at different positions on the clamping arm 310. In this way, by adjusting the relative position of the adjusting member 100 with respect to the clamping arm 310, the position of the acting portion on the clamping arm 310 for clamping the force measuring member 200 is changed, and thus the length (as shown by the length x in fig. 3) of the acting force arm between the acting portion P on the clamping arm 310 and the rotation axis center O of the clamping body 320 is changed, so as to implement the clamping force test on the clamping arm 310 under the condition of different acting force arm lengths, and improve the applicability of the clamping force test method.

The position of the adjusting member 100 with respect to the clamp arm 310 may be adjusted only by the position of the adjusting member 100 or the clamp arm 310, or may be adjusted by the positions of both the adjusting member 100 and the clamp arm 310.

It should be noted that, when the clamping force is applied to different test conditions of the same test piece 300 to be tested, only the preset clamping distance, only the length of the acting force arm, or both the preset clamping distance and the length of the acting force arm may be adjusted.

As shown in fig. 2, in this embodiment, S810, the position of the adjusting member 100 relative to the clamping arm 310 is adjusted to adjust the position of the acting portion between the clamping arm 310 and the force measuring member 200, so that the force measuring member 200 can measure the clamping forces at different positions on the clamping arm 310. In this way, the adjusting piece 100 drives the force measuring piece 200 to move relative to the clamping arm 310, so that the position of the acting part on the clamping arm 310 for clamping the force measuring piece 200 is changed, the length of the acting force arm on the clamping arm 310 is adjustable, and the applicability and convenience of the clamping force testing method are improved.

Compared with the clamping force testing method of the prior clamping cylinder, the clamping force testing method of the application has at least the following advantages: (1) The preset clamping interval is controllable in value, and the fact that the test value of the clamping force is the same or smaller when the same test piece 300 to be tested is subjected to the clamping force test is guaranteed, so that the clamping force of the same force arm can be accurately obtained, and the reliability and the accuracy of the clamping force test method are improved. (2) By adjusting the adjusting member 100, the preset clamping distance between the mounting end 120 and the clamping arm 310 is adjustable, so that the clamping force test of the test piece 300 to be tested under the condition of different preset clamping distances and the clamping force test of the test piece 300 to be tested with different models and different specifications can be realized, and the applicability of the clamping force test method is improved. (3) The testing device 10 corresponding to the clamping force testing method is simple and easy to build and simple and flexible to operate, and can complete the clamping force test on the clamping arm 310 under the condition that only one clamping arm 310 exists, so that the convenience and the testing cost of the clamping force testing method are improved.

As shown in fig. 3, in one embodiment, a testing device 10 is provided for implementing the method for testing a clamping force in any one of the embodiments, where the testing device 10 includes an adjusting member 100 and a force measuring member 200, the adjusting member 100 is disposed at a side of a clamping arm 310 of a test piece 300 to be tested at intervals, the adjusting member 100 includes an adjusting body 110 and a mounting end 120, the force measuring member 200 is mounted on the mounting end 120, the mounting end 120 is disposed at a top of the adjusting body 110, and the adjusting body 110 is in transmission connection with the mounting end 120, so that the mounting end 120 can drive the force measuring member 200 to reciprocate along a direction approaching or separating from the clamping arm 310.

In the test device 10 of the above embodiment, first, the clamp arm 310 of the test piece 300 to be tested is driven to move to the test position so that the clamp arm 310 can function as a reference position for facilitating the mounting of the adjusting member 100 to one side of the clamp arm 310. Secondly, the position of the mounting end 120 of the adjusting member 100 relative to the clamping arm 310 is adjusted, so that the mounting end 120 and the clamping arm 310 are spaced by a preset clamping distance, the same or smaller difference of the testing values of the clamping force when the same test piece 300 to be tested is ensured, and the actual magnitude of the clamping force of the clamping arm 310 can be accurately obtained. The clamping arm 310 is then driven in a direction away from the mounting end 120 to enable mounting of the load cell 200 on the mounting end 120. Finally, the clamping arm 310 is driven to move to the testing position in a direction approaching the mounting end 120, so that the load cell 200 is clamped between the clamping arm 310 and the mounting end 120 to measure the clamping force of the clamping arm 310.

As shown in fig. 3, further, the test device 10 also includes a display 400, the display 400 being communicatively coupled to the load cell 200. In this way, the display member 400 can display the detection value of the force measuring member 200 in real time, so that the tester can observe the change of the clamping force of the clamping arm 310, and the convenience of the testing device 10 is improved.

Wherein display 400 may be a display screen, display, load cell, or other display structure. The display 400 is communicatively coupled to the load cell 200 via wires, data lines, bluetooth, wireless communication network technology, or other communication means.

Optionally, the testing device 10 further includes a moving mechanism (not shown) located at the bottom of the adjusting body 110 and in driving connection with the adjusting body 110, so that the adjusting body 110 can drive the force measuring member 200 to move through the mounting end 120 to adjust the position of the acting portion between the clamping arm 310 and the force measuring member 200 on the clamping arm 310. In this way, the moving mechanism can drive the force measuring member 200 to move relative to the clamping arm 310 through the adjusting member 100, so that the position of the acting part on the clamping arm 310 for clamping the force measuring member 200 is changed, and then the length of the acting force arm on the clamping arm 310 is changed, thereby realizing the clamping force test of the clamping arm 310 under the condition of different acting force arm lengths, and improving the applicability of the clamping force test method.

In particular, in the present embodiment, when the clamp arm 310 is rotated to the horizontal direction, the axial direction of the clamp arm 310 is the same as the extending direction of the moving mechanism.

The moving mechanism can be a sliding rail, an electric sliding table or other moving structures. In particular, in this embodiment, the moving mechanism is set to a sliding rail, the sliding rail is set along a horizontal direction and is located under the clamping arm 310, and the sliding rail is in sliding fit with the adjusting body 110, so that the adjusting body 110 can drive the force measuring piece 200 to reciprocate along a direction close to or far away from the clamping body 320 through the mounting end 120, and further, the position of the acting part between the force measuring piece 200 and the clamping arm 310 is changed to adjust the length of an acting force arm of the clamping arm 310, so that the clamping force test of the clamping arm 310 under the conditions of different acting force arm lengths is realized, and the applicability of the testing device 10 is improved.

In the description of the present application, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

It will be further understood that when interpreting the connection or positional relationship of elements, although not explicitly described, the connection and positional relationship are to be interpreted as including the range of errors that should be within an acceptable range of deviations from the particular values as determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, and is not limited herein.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. A method of testing a clamping force, comprising:

driving a clamping arm of a test piece to be tested to move to a test position:

and measuring the clamping force of the clamping arm.

2. The method of claim 1, further comprising, prior to the step of driving the clamp arm of the test piece to move to the testing position:

3. The clamping force testing method according to claim 2, wherein in the step of driving the clamping arm of the test piece to be tested to the testing position, comprising:

4. A clamping force testing method according to claim 3, wherein in the step of adjusting the position of the mounting end of the adjustment member relative to the clamping arm such that the mounting end is spaced from the clamping arm by a predetermined clamping distance, comprising:

5. The clamping force testing method of any one of claims 1-4, further comprising, after the step of driving the clamping arm to move to the testing position in a direction toward the mounting end such that the load cell is clamped between the clamping arm and the mounting end to measure the clamping force of the clamping arm:

6. The clamping force testing method of any one of claims 1-4, further comprising, after the step of driving the clamping arm to move to the testing position in a direction toward the mounting end such that the load cell is clamped between the clamping arm and the mounting end to measure the clamping force of the clamping arm:

7. The method according to claim 6, wherein the step of adjusting the position of the acting portion between the clamp arm and the load cell so that the load cell can measure the clamp force at different positions on the clamp arm, comprises:

8. A testing device for implementing the clamping force testing method according to any one of claims 1 to 7, wherein the testing device comprises an adjusting member and a force measuring member, the adjusting member is arranged at one side of a clamping arm of a test piece to be tested at intervals, the adjusting member comprises an adjusting body and a mounting end, the force measuring member is mounted at the mounting end, the mounting end is arranged at the top of the adjusting body, and the adjusting body is in transmission connection with the mounting end, so that the mounting end can drive the force measuring member to reciprocate along a direction approaching to or separating from the clamping arm.

9. The test device of claim 8, further comprising a display communicatively coupled to the force measuring member.

10. The test device of claim 8, further comprising a movement mechanism located at the bottom of the adjustment body and in driving connection with the adjustment body such that the adjustment body can move the load cell through the mounting end to adjust the position of the active portion between the clamping arm and the load cell on the clamping arm.