CN117147356B - Calibration device and calibration method for axial force testing machine - Google Patents
Calibration device and calibration method for axial force testing machine Download PDFInfo
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- CN117147356B CN117147356B CN202311432128.0A CN202311432128A CN117147356B CN 117147356 B CN117147356 B CN 117147356B CN 202311432128 A CN202311432128 A CN 202311432128A CN 117147356 B CN117147356 B CN 117147356B
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 16
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- 238000005259 measurement Methods 0.000 abstract 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/62—Manufacturing, calibrating, or repairing devices used in investigations covered by the preceding subgroups
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
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Abstract
The invention discloses a calibration device and a calibration method for an axial force testing machine, comprising the following steps: a device fixing frame; the force measuring part comprises a force measuring piece and a force display piece connected with the force measuring piece; the force application part comprises a force application component, one end of which is connected with the force measuring piece, and the force application component is connected with the device fixing frame through an adjusting component so that the adjusting component can change the force application direction of the force application component; and one end of the connecting part is connected with the sensor of the axial force testing machine, and the other end of the connecting part is connected with the force application component through the force measurement part, so that the force applied by the force application component is transmitted to the sensor of the axial force testing machine, and the connecting part has the advantage of calibrating the force value of the axial force testing machine so as to increase the accuracy of output result data.
Description
Technical Field
The invention belongs to the technical field of equipment calibration, and particularly relates to a calibration device and a calibration method for an axial force testing machine.
Background
Axial force testers are typically used to add torque and rotational speed to a test specimen, to collect and record test data using their force sensors, and to transmit the collected results and reports to a controller (e.g., an MPC computer) for processing.
Because the sensor of the axial force testing machine is generally required to detect multi-directional forces (such as relative to the X direction, Y direction, Z direction and the like of the testing machine) in the testing process, the accuracy of the detection result of the sensor directly influences the testing result, but the existing axial force testing machine cannot calibrate the force value of the axial force testing machine, so that the accuracy of the axial force data output by the equipment cannot be judged.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a calibration device and a calibration method for an axial force testing machine.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a calibration device for an axial force testing machine, comprising:
a device fixing frame;
the force measuring part comprises a force measuring piece and a force display piece connected with the force measuring piece;
the force application part comprises a force application component, one end of which is connected with the force measuring piece, and the force application component is connected with the device fixing frame through an adjusting component so that the adjusting component can change the force application direction of the force application component;
and one end of the connecting part is connected with the sensor of the axial force testing machine, and the other end of the connecting part is connected with the force application component through the force measuring part so as to transmit the force applied by the force application component to the sensor of the axial force testing machine.
Preferably, the force application assembly comprises:
the first force application rod is connected with the force measuring piece;
the power piece is installed on the adjusting component in a sliding mode, thrust is applied to the first force application rod through sliding, and the direction of the thrust is coincident with the central axis of the first force application rod.
Preferably, the power member includes:
the moving block is slidably arranged on the adjusting component;
the second force application rod is propped against or fixedly connected or rotationally connected with the moving block, and the central axis of the second force application rod is overlapped with the central axis of the first force application rod.
Preferably, the adjusting component comprises two opposite supporting plates and at least two guide rods which are arranged in parallel;
the two guide rods are arranged on the moving block in a penetrating mode, one end of each guide rod is connected with one supporting plate, and the other end of each guide rod is connected with the other supporting plate.
Preferably, the adjusting assembly further comprises a bottom plate fixedly connected with the supporting plate;
the bottom plate is detachably connected with the device fixing frame;
the device fixing frame is provided with at least two mounting surfaces for mounting the bottom plate, and the two mounting surfaces are mutually perpendicular.
Preferably, one end of the second force application rod is abutted against or in running fit with the moving block;
the second force application rod is in threaded connection with the adjusting component so as to push the moving block to slide through rotation.
Preferably, the device fixing frame comprises a supporting frame and an adjusting frame;
the adjusting frame is provided with at least two mutually perpendicular installation surfaces for installing the adjusting component;
the support frame is equipped with a plurality of mounting holes for with the alignment jig is installed the different positions of support frame.
Preferably, the connecting part comprises a connecting rod, a first clamp and a second clamp;
the central axis of the connecting rod coincides with the force application direction of the force application assembly;
the first clamp is connected with a sensor of the axial force testing machine;
one end of the connecting rod is fixedly connected with the force measuring piece, the other end of the connecting rod is fixedly connected with the first clamp, or one end of the connecting rod is fixedly connected with the force measuring piece, the other end of the connecting rod is connected with the second clamp, and the second clamp is perpendicular to the first clamp and is fixedly connected with the first clamp.
The calibration method based on the calibration device for the axial force testing machine comprises the following steps:
the force application direction of the force application component is changed through the adjusting component of the force application part, and the applied force is transmitted to the axial force testing machine through the connecting part, wherein the force application direction of the force application component comprises the direction of force to be detected in the working process of the sensor of the axial force testing machine;
transmitting the detected first force value to a controller by a sensor of the axial force testing machine;
a second force value detected by a force measuring member of the force measuring section and transmitted to a force display member;
and comparing the first force value with the second force value, and obtaining a calibration result of the calibration axial force testing machine according to a judgment standard.
Preferably, the second force application rod is rotated to drive the moving block to slide along the guide rod;
the first force application rod is driven to slide by the moving block.
Compared with the prior art, the invention has the beneficial effects that:
according to the calibration device and the calibration method for the axial force testing machine, the force applied by the force applying part can simulate the multi-directional force involved in the test process and is detected by the force measuring part, meanwhile, the force applied by the force applying part is transmitted to the sensor of the axial force testing machine through the connecting part to be detected, and the axial force testing machine is calibrated by comparing the values detected by the two sensors, so that the accuracy of the axial force data output by the equipment (namely, the output of the sensor of the equipment) can be judged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the installation of the device of the present invention (X-direction calibration) for axial force tester calibration;
FIG. 2 is a schematic connection diagram of the calibration device for calibrating an axial force tester along the X direction;
FIG. 3 is an enlarged view of the position A of FIG. 2;
FIG. 4 is a schematic connection diagram of the calibration device for calibrating an axial force tester along the Y direction;
FIG. 5 is a schematic connection diagram of the calibration device for calibrating an axial force tester along the Z direction.
Reference numerals:
1, a device fixing frame; 10 mounting surfaces; 11 supporting frames; 111 mounting holes; 12, adjusting a frame; 2 a force measuring part; 21 a force measuring member; 22 force display; a force application part; 31 a force application assembly; 311 a first force application rod; 312 power piece; 3121 moving the block; 3122 a second force bar; 32 an adjustment assembly; 321 support plates; 322 guide rods; 323 base plate; 4 a connecting part; 40 connecting rods; 41 a first clamp; 42 second clamp.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, an embodiment of the invention discloses a calibration device for an axial force testing machine, which comprises a device fixing frame 1, a force measuring part 2, a force applying part 3 and a connecting part 4. The device fixing frame 1 is used for fixedly mounting the device, for example, on a fixing main body of an axial force testing machine; one end of the force measuring part 2 is connected with the force applying part 3 and is used for testing and displaying the force applied by the force applying part 3, and the other end of the force measuring part 2 is connected with the connecting part 4 and is used for transmitting the force applied by the force applying part 3 to the connecting part 4 and then to the axial force testing machine; the force application portion 3 is detachably mounted on the device holder 1 so that the force application portion 3 can change the force application direction by position adjustment, and further apply forces in the force application direction involved in the test of the axial force tester, for example, forces in the X direction, the Y direction, and the Z direction in the drawing.
In this way, the force applied in the force applying portion 3 can simulate the forces in multiple directions involved in the application test, and the force applied by the force applying portion 3 is detected by the force measuring portion 2, and the force applied by the force applying portion 3 is also transmitted to the sensors of the axial force testing machine by the connecting portion 4, and the axial force testing machine is calibrated by comparing the values detected by the two sensors, so that the accuracy of the axial force data output by the device (that is, the output by the sensors of the device) can be determined.
Referring to fig. 1, the device holder 1 includes a support frame 11 and an adjustment frame 12; the adjusting bracket 12 is provided with at least two mutually perpendicular mounting surfaces 10 for mounting the adjusting assembly 32; the mounting surface 10 is provided with screw holes for connecting the force application part 3 by screws so as to change the orientation of the force application part 3, and the mounting surface 10 can be provided with a plurality of screw holes uniformly distributed on the mounting surface 10 so as to increase the mounting stability of the force application part 3, however, in other embodiments, the mounting surface 10 can be connected with the force application part 3 by other means, such as a buckle, a fixing pin, and the like.
Further, the supporting frame 11 is fixed on the fixed body of the axial force testing machine, and the X direction, the Y direction and the Z direction of the supporting frame 11 are consistent with the direction of the axial force testing machine. Since different axial force tester sensors may be different, in order to enable a better transmission of the force applied by the force application part 3 to the connection part 4 and the axial force tester sensors, in this embodiment the support frame 11 is provided with several mounting holes 111 for mounting the adjustment frame 12 at different positions of the support frame 11.
Specifically, the mounting holes 111 are arranged in two rows along the Y direction of the support frame 11, the plurality of mounting holes 111 in each row are linearly distributed along the Y direction of the support frame 11 (i.e. the straight line formed by connecting the circle centers of the mounting holes 111 in the same row is parallel to the Y direction), the locking grooves are formed in the adjusting frame 12, and when the adjusting frame 12 is fixed, pins or bolts penetrate through the locking grooves to be connected with different mounting holes 111, so that the fixed mounting of the adjusting frame 12 and the support frame 11 is realized. In addition, after the force application direction of the force application part 3 is adjusted, the positions of the force application part 3 and the connecting part 4 are correspondingly changed, and the support frame 11 in the embodiment is provided with the mounting holes 111 to change the mounting position of the adjusting frame 12 on the support frame 11, so that the force of the force application part 3 can be better transmitted to the sensor of the axial force testing machine while the structure of the connecting part 4 is simplified, in addition, the adjustment error between the X axis, the Y axis, the Z axis and the axial force testing machine of the calibration device is avoided when the position of the support frame 11 is adjusted, and the calibration result of the axial force testing machine is more accurate without the need of recalibration.
Referring to fig. 1, the force gauge 21 includes an S-shaped force sensor for detecting forces applied in three directions, and one end of the force gauge 21 is connected to a force display member 22, and the force display member 22 may employ a force display device so that the force detected by the force gauge 21 can be displayed on the force display member 22.
Referring to fig. 2 and 3, the force applying portion 3 includes a force applying member 31 having one end connected to the force measuring member 21, and the force applying member 31 is connected to the device holder 1 through an adjusting member 32 so that the adjusting member 32 can change the direction of the force applied by the force applying member 31.
Specifically, the force application assembly 31 includes a first force application lever 311 and a power member 312. The first force-applying lever 311 is used for connecting the force-measuring part 21, and can transmit the applied force to a sensor of the force-measuring part 21 on one hand, and can transmit the force to the connecting part 4 and further to a sensor of the axial force testing machine through a fixed body of the force-measuring part 21 on the other hand. The power member 312 is slidably mounted on the adjustment assembly 32, and applies a pushing force to the first urging lever 311 by sliding.
In order to avoid a force transmission error, the direction of the pushing force coincides with the central axis of the first urging lever 311. Specifically, the power member 312 includes a moving block 3121 and a second force application lever 3122, the moving block 3121 being slidably mounted on the adjustment assembly 32, the central axis of the second force application lever 3122 coinciding with the central axis of the first force application lever 311. The second force applying rod 3122 is connected to the moving block 3121 in various manners, for example, the second force applying rod 3121 is connected to the moving block 3121, and the moving block 3121 needs to be manually pushed during the resetting process; or is directly fixedly connected or in a rotating fit with the moving block 3121, and at this time, the axial thrust is applied to one end of the second force application rod 3122 to push the moving block 3121.
Further, in the present embodiment, the adjusting assembly 32 includes a support plate 321, a guide bar 322, and a bottom plate 323. Wherein, the supporting plate 321 comprises two opposite blocks and is fixedly arranged on the bottom plate 323; the guide rods 322 are all arranged on the movable block 3121 in a penetrating way, one end of each guide rod is connected with one support plate 321, and the other end of each guide rod is connected with the other support plate 321, so that on one hand, the rotation of the movable block 3121 can be limited, the movable block 3121 only has a sliding state under the action of the second force application rod 3122, the power loss error is prevented from influencing the accuracy of the calibration result, and on the other hand, the movable block 3121 can be prevented from being separated from the guide rods 322 to influence the calibration result; the base plate 323 is detachably connected to the device holder 1, and when the base plate 323 is connected to the mounting surface 10, the support plate 321 and the guide rods 322, and thus the biasing portion 3, can be fixed. Of course, in other embodiments, two, three or more guide rods 322 may be provided, or instead of the guide rods 322, a T-shaped guide rail having a guiding effect may be provided, and a T-shaped block may be provided on the moving block 3121 to be engaged with the T-shaped guide rail.
Further, in order to facilitate the force application of the second force application rod 3122 and avoid the deviation between the central axis of the first force application rod 311 and the central axis of the second force application rod 3122, in this embodiment, the second force application rod 3122 is in threaded connection with the support plate 321 of the adjusting component 32 to push the moving block 3121 to slide through rotation, one end of the first force application rod 311 is fixedly connected with the moving block 3121, and the other end is connected with the force measuring part 2 through the other support plate 321, in order to avoid the interference of the moving block 3121 with the rotation of the second force application rod 3122, in this embodiment, one end of the second force application rod 3122 is in rotational fit connection with the moving block 3121, specifically, a step shaft (fixed at one end of the second force application rod 3122) is in fit with a step hole (disposed on the moving block 3121), which is not shown in the figure. Of course, in other embodiments, one end of the second force application rod 3122 may also abut the moving block 3121.
Referring to fig. 2, 4 and 5, one end of the connection part 4 is connected to a sensor of the axial force tester, and the other end is connected to the force application assembly 31 through the force measuring part 2 to transmit the force applied by the force application assembly 31 to the sensor of the axial force tester.
Specifically, the connecting portion 4 includes a connecting rod 40, a first jig 41, and a second jig 42. The central axis of the connecting rod 40 coincides with the force application direction of the force application assembly 31, the connecting rod 40 coincides with the central axis of the first force application rod 311, and the force of the first force application rod 311 can be transferred to the connecting rod 40 and further transferred to the axial force testing machine by realizing rigid connection between the fixed body of the force measuring member 21 and the first force application rod 311.
Further, when calibrating the X direction, one end of the connecting rod 40 is fixedly connected to the load cell 21, the other end is fixedly connected to the first clamp 41, and the first clamp 41 is connected to a sensor of the axial force tester, see fig. 2. When the Y direction is calibrated, one end of the connecting rod 40 is fixedly connected to the load cell 21, the other end is connected to the second clamp 42, the second clamp 42 is vertically arranged to the first clamp 41 and is fixedly connected to the first clamp 41, and the first clamp 41 is connected to a sensor of the axial force tester, see fig. 4. When the Z direction is calibrated, one end of the connecting rod 40 is fixedly connected to the load cell 21, the other end is connected to the second clamp 42, the second clamp 42 is vertically arranged to the first clamp 41 and is fixedly connected to the first clamp 41, and the first clamp 41 is connected to a sensor of the axial force tester, see fig. 5.
The embodiment of the invention also provides a calibration method based on the calibration device, which comprises the following steps:
s1: the force application direction of the force application assembly 31 is changed through the adjusting assembly 32 of the force application part 3, and the applied force is transmitted to the axial force testing machine through the connecting part 4, wherein the force application direction of the force application assembly 31 comprises the direction of force required to be detected in the working process of the sensor of the axial force testing machine;
s2: transmitting the detected first force value to a controller by a sensor of the axial force testing machine;
s3: a second force value detected by the force measuring member 21 of the force measuring section 2 and transmitted to the force display member 22;
s4: and comparing the first force value with the second force value, and obtaining a calibration result of the calibration axial force testing machine according to the judgment standard.
Further comprises:
rotating the second force applying lever 3122 to drive the moving block 3121 to slide along the guide bar 322; the first force application bar 311 is driven to slide by the moving block 3121.
Specifically, before calibration, the support frame 11 of the calibration device is fixedly installed on the body or the workbench of the axial force testing machine, the X direction, the Y direction and the Z direction of the support frame 11 are calibrated to be consistent with the axial force testing machine, the first clamp 41 is connected with a sensor (such as a torque sensor) of the high-frequency axial force testing machine, and the adjusting frame 12 is fixed on the support frame 11 according to the positions of the first clamp 41, the force measuring part 2 and the force applying part 3.
When the calibration is required in the X direction, the bottom plate 323 is attached to one of the mounting surfaces 10 and fixedly connected with the adjusting frame 12, the central axes of the first force applying rod 311 and the second force applying rod 3122 face the X direction, the connecting rod 40 is fixedly connected with the first clamp 41, the second force applying rod 3122 is rotated to push the moving block 3121 to apply force in the X direction and transmit the force to the first force applying rod 311, the sensor of the force measuring member 21 receives the signal of the force applied by the first force applying rod 311 and transmits the signal to the force display member 22 to obtain a second force value, the fixed body of the force measuring member 21 transmits the force applied by the first force applying rod 311 to the connecting rod 40 and the first clamp 41, the sensor of the high-frequency axial force testing machine receives the signal and transmits the signal to the controller to obtain a first force value, and finally, the calibration result can be obtained by comparing the difference value of the first force value and the second force value, and when the difference value is zero, the calibration is qualified.
When the Y direction is required to be marked, the fastener between the bottom plate 323 and the adjusting frame 12 is detached, the bottom plate 323 is fixedly connected with the adjusting frame 12 after being rotated anticlockwise by 90 degrees on the mounting surface 10, the central axes of the first force application rod 311 and the second force application rod 3122 face the Y direction, the connecting rod 40 is detached from the first clamp 41, one end of the connecting rod 40 is fixedly connected with the second clamp 42, and the second clamp 42 can be fixedly connected with the first clamp 41 by adjusting the mounting position of the adjusting frame 12; the second force application rod 3122 is rotated to push the moving block 3121 to apply force in the X direction and transmit the force to the first force application rod 311, the sensor of the force measuring member 21 receives the signal of the force applied by the first force application rod 311 and transmits the signal to the force display member 22 to obtain a second force value, the fixed body of the force measuring member 21 sequentially transmits the force applied by the first force application rod 311 to the connecting rod 40, the second clamp 42 and the first clamp 41, so that the sensor of the high-frequency axial force testing machine receives the signal and transmits the signal to the controller to obtain a first force value, finally, the difference value of the first force value and the second force value is compared to obtain a calibration result, and when the difference value of the two values is zero, the calibration is qualified.
When the Z direction is required to be calibrated, the first clamp 41 and the second clamp 42 are detached firstly, then a fastener between the bottom plate 323 and the adjusting frame 12 is detached, the bottom plate 323 is attached to the other mounting surface 10, then the bottom plate 323 is fixedly connected with the adjusting frame 12, and the second clamp 42 can be fixedly connected with the first clamp 41 by adjusting the mounting position of the adjusting frame 12; the second force application rod 3122 is rotated to push the moving block 3121 to apply force in the X direction and transmit the force to the first force application rod 311, the sensor of the force measuring member 21 receives the signal of the force applied by the first force application rod 311 and transmits the signal to the force display member 22 to obtain a second force value, the fixed body of the force measuring member 21 sequentially transmits the force applied by the first force application rod 311 to the connecting rod 40, the second clamp 42 and the first clamp 41, so that the sensor of the high-frequency axial force testing machine receives the signal and transmits the signal to the controller to obtain a first force value, finally, the difference value of the first force value and the second force value is compared to obtain a calibration result, and when the difference value of the two values is zero, the calibration is qualified.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (3)
1. A calibration device for an axial force testing machine, comprising:
a device fixing frame (1);
a force measuring section (2) comprising a force measuring member (21) and a force display member (22) connected to the force measuring member (21);
the force application part (3) comprises a force application component (31) with one end connected with the force measuring piece (21), and the force application component (31) is connected with the device fixing frame (1) through an adjusting component (32) so that the adjusting component (32) can change the force application direction of the force application component (31);
one end of the connecting part (4) is connected with the sensor of the axial force testing machine, and the other end of the connecting part is connected with the force application component (31) through the force measuring part (2) so as to transmit the force applied by the force application component (31) to the sensor of the axial force testing machine;
the force application assembly (31) includes:
a first force application rod (311) connected with the force measuring piece (21);
a power piece (312) which is slidably mounted on the adjusting assembly (32) and applies a pushing force to the first force application rod (311) through sliding, and the direction of the pushing force is coincident with the central axis of the first force application rod (311);
the power piece (312) includes:
a moving block (3121) slidably mounted on the adjustment assembly (32);
a second force application rod (3122) which is abutted against or fixedly connected or rotationally connected with the moving block (3121), and the central axis of the second force application rod (3122) is overlapped with the central axis of the first force application rod (311);
the adjusting assembly (32) comprises two opposite supporting plates (321) and at least two guide rods (322) which are arranged in parallel;
the two guide rods (322) are arranged on the movable block (3121) in a penetrating way, one end of each guide rod is connected with one supporting plate (321), and the other end of each guide rod is connected with the other supporting plate (321);
the adjusting component (32) further comprises a bottom plate (323) fixedly connected with the supporting plate (321);
the bottom plate (323) is detachably connected with the device fixing frame (1);
the device fixing frame (1) is provided with at least two mounting surfaces (10) for mounting the bottom plate (323), and the two mounting surfaces (10) are mutually perpendicular;
one end of the second force application rod (3122) is propped against or in rotary fit with the moving block (3121);
the second force application rod (3122) is in threaded connection with the adjusting assembly (32) to push the moving block (3121) to slide through rotation;
the device fixing frame (1) comprises a supporting frame (11) and an adjusting frame (12);
the adjusting frame (12) is provided with at least two mutually perpendicular installation surfaces (10) for installing the adjusting component (32);
the supporting frame (11) is provided with a plurality of mounting holes (111) for mounting the adjusting frame (12) at different positions of the supporting frame (11);
the connecting part (4) comprises a connecting rod (40), a first clamp (41) and a second clamp (42);
the central axis of the connecting rod (40) coincides with the force application direction of the force application assembly (31);
the first clamp (41) is connected with a sensor of the axial force testing machine;
one end of the connecting rod (40) is fixedly connected with the force measuring piece (21), the other end of the connecting rod is fixedly connected with the first clamp (41), or one end of the connecting rod (40) is fixedly connected with the force measuring piece (21), the other end of the connecting rod is connected with the second clamp (42), and the second clamp (42) is perpendicular to the first clamp (41) and fixedly connected with the first clamp (41).
2. A calibration method based on the calibration device for an axial force testing machine according to any one of the preceding claims 1, characterized by comprising:
the force application direction of the force application assembly (31) is changed through the adjusting assembly (32) of the force application part (3), and the applied force is transmitted to the axial force testing machine through the connecting part (4), wherein the force application direction of the force application assembly (31) comprises the direction of force required to be detected in the working process of the sensor of the axial force testing machine;
transmitting the detected first force value to a controller by a sensor of the axial force testing machine;
a second force value detected by a force measuring part (2) and transmitted to a force display part (22);
and comparing the first force value with the second force value, and obtaining a calibration result of the calibration axial force testing machine according to a judgment standard.
3. The calibration method of claim 2, comprising:
rotating the second force application rod (3122) to drive the moving block (3121) to slide along the guide rod (322);
the first force application rod (311) is driven to slide by the moving block (3121).
Priority Applications (1)
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| CN202311432128.0A CN117147356B (en) | 2023-10-31 | 2023-10-31 | Calibration device and calibration method for axial force testing machine |
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| CN202311432128.0A CN117147356B (en) | 2023-10-31 | 2023-10-31 | Calibration device and calibration method for axial force testing machine |
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| CN117147356B true CN117147356B (en) | 2024-01-26 |
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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