CN112577729B - Ultrasonic toolholder load performance test platform and test method - Google Patents
Ultrasonic toolholder load performance test platform and test method Download PDFInfo
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- CN112577729B CN112577729B CN202011484334.2A CN202011484334A CN112577729B CN 112577729 B CN112577729 B CN 112577729B CN 202011484334 A CN202011484334 A CN 202011484334A CN 112577729 B CN112577729 B CN 112577729B
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- 238000010998 test method Methods 0.000 title claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims abstract description 275
- 238000006073 displacement reaction Methods 0.000 claims abstract description 60
- 238000012360 testing method Methods 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
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Abstract
The invention discloses a test platform and a test method for the load performance of an ultrasonic knife handle, the test platform comprises a loading table, a cutter handle fixing mechanism, a laser displacement sensor fixing mechanism and a pressure sensor fixing mechanism. The handle fixing mechanism is arranged on the loading table. The laser displacement sensor fixing mechanism is arranged on the loading table and comprises a laser displacement sensor for detecting an amplitude curve at the end face of the cutter. The pressure sensor fixing mechanism is arranged on the loading table and comprises a pressure sensor and a force loading frame, the force loading frame is connected with the pressure sensor, the laser displacement sensor is arranged in the force loading frame and is positioned between the pressure sensor and the cutter, the force loading frame is provided with a through groove for laser transmission, and the pressure sensor fixing mechanism is used for applying load to the cutter through the pressure sensor and the force loading frame. The test platform realizes the performance test of the ultrasonic knife handle.
Description
Technical Field
The invention relates to the technical field of ultrasonic precise special machining, in particular to an ultrasonic tool shank load performance test platform and a test method, which are used for measuring an amplitude curve of a tool end face of a tool loaded on an ultrasonic tool shank when the tool is subjected to different loads.
Background
The delivery detection of the ultrasonic knife handle is a link which is required to be completed before delivery of each ultrasonic knife handle, so as to check whether the ultrasonic knife handle is abnormal or not and whether the theoretical performance of the ultrasonic knife handle design is reached or not. The test of the amplitude curve is also a necessary ring of all manufacturers, and the rotary ultrasonic processing technology has different requirements on the cutter amplitude of the ultrasonic cutter handle according to the processing environments of different materials. In addition, when the cutter amplitude curve test of the ultrasonic cutter handle is carried out in production, the real cutting environment, namely the amplitude change when the cutter bears different loads, needs to be simulated as much as possible, and when the load is applied to the cutter end face, the laser displacement sensor cannot be directly used for measuring the amplitude on the cutter end face.
Disclosure of Invention
The embodiment of the invention provides a test platform and a test method for the load performance of an ultrasonic knife handle, which are used for measuring an amplitude curve of a knife end face of a knife loaded on the ultrasonic knife handle when the knife bears different loads.
The invention provides an ultrasonic knife handle load performance test platform, which is used for measuring an amplitude curve of a knife end face of a knife loaded on an ultrasonic knife handle when the knife bears different loads, and comprises:
The loading platform is provided with a loading platform,
The cutter handle fixing mechanism is arranged on the loading table and used for fixing the ultrasonic cutter handle, the ultrasonic cutter handle is provided with the cutter,
A laser displacement sensor fixing mechanism mounted on the loading table, the laser displacement sensor fixing mechanism including a laser displacement sensor for detecting an amplitude curve at the tool end face, and
The pressure sensor fixing mechanism is installed on the loading table and comprises a pressure sensor and a force loading frame, the force loading frame is connected with the pressure sensor, the laser displacement sensor is arranged in the force loading frame and located between the pressure sensor and the cutter, a through groove is formed in the force loading frame and used for laser transmission, and the pressure sensor fixing mechanism is used for applying load to the cutter through the pressure sensor and the force loading frame.
According to the ultrasonic knife handle load performance test platform, when a load is applied to the knife of the ultrasonic knife handle through the pressure sensor, the laser displacement sensor can be used for measuring the amplitude curve at the end face of the knife, so that the performance test of the ultrasonic knife handle is realized.
In certain embodiments, the handle fixation mechanism comprises:
a first driving mechanism installed on the loading table,
A second driving mechanism mounted on the first driving mechanism,
A third driving mechanism mounted on the second driving mechanism,
The first cutter handle support pair is arranged on the second driving mechanism, and the second driving mechanism is used for driving the first cutter handle support pair to clamp the primary side of the ultrasonic cutter handle;
The second handle support pair is installed on the third driving mechanism, the third driving mechanism is used for driving the second handle support pair to clamp the secondary side of the ultrasonic handle, and the cutter is installed on the secondary side.
In some embodiments, the first drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism, the second drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism, and the third drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism.
In some embodiments, the first pair of handle supports is formed with a first clamping notch that is diamond-shaped or circular, and the second pair of handle supports is formed with a second clamping notch that is diamond-shaped or circular.
In certain embodiments, the laser displacement sensor fixing mechanism comprises:
a fourth driving mechanism installed on the loading table,
A fifth driving mechanism mounted on the fourth driving mechanism;
And the fourth driving mechanism, the fifth driving mechanism and the sixth driving mechanism are respectively used for correspondingly adjusting the positions of the laser displacement sensor in the Z-axis, Y-axis and X-axis directions.
In certain embodiments, the fourth drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism, the fifth drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism, and the sixth drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism.
In certain embodiments, the pressure sensor securing mechanism comprises:
A seventh driving mechanism installed on the loading table,
An eighth driving mechanism mounted on the seventh driving mechanism,
And the seventh driving mechanism, the eighth driving mechanism and the ninth driving mechanism are respectively used for correspondingly adjusting the positions of the pressure sensor and the force loading frame in the Z-axis, Y-axis and X-axis directions.
In certain embodiments, the seventh drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism, the eighth drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism, and the ninth drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism.
In some embodiments, the force loading frame includes opposing first and second sides, the first side being fixedly connected to the pressure sensor, the second side being provided with the slot, the slot having a slot width less than a diameter of the tool, and a length of the slot satisfying a laser transmission path requirement.
In some embodiments, the surface of the second side opposite the tool is provided with a relief feature on either side of the slot for abutment against the tool.
In some embodiments, the test platform comprises a controller and a control handle, wherein the control handle is electrically connected with the controller, and the controller is used for controlling the test platform to run according to a control signal of the control handle.
The method for testing the load performance of the ultrasonic knife handle is used for measuring the amplitude curve of the end face of the knife when the knife loaded on the ultrasonic knife handle bears different loads by the test platform of any embodiment,
The test method comprises the following steps:
The ultrasonic knife handle is fixed by utilizing the knife handle fixing mechanism;
Adjusting the pressure sensor fixing mechanism to enable the groove of the force loading frame to be propped against the end face of the cutter;
Adjusting the laser displacement sensor fixing mechanism so that the laser displacement sensor can detect an amplitude curve at the end face of the cutter, and the laser emitted by the laser displacement sensor and the laser reflected by the cutter can pass through a groove of the force loading frame;
and adjusting the pressure sensor fixing mechanism, applying load to the cutter by the force loading frame, and recording cutter end face amplitude curves detected by the laser displacement sensor under different load conditions.
According to the ultrasonic knife handle load performance testing method, when the load is applied to the cutter of the ultrasonic knife handle through the pressure sensor, the laser displacement sensor can be used for measuring the amplitude curve at the end face of the cutter, so that the performance testing of the ultrasonic knife handle is realized.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic perspective view of an ultrasonic blade handle load performance test platform according to an embodiment of the present invention;
FIG. 2 is a front view of an ultrasonic blade handle load performance test platform according to an embodiment of the present invention;
FIG. 3 is a plan view of a part of the structure of an ultrasonic tool shank load performance test platform according to an embodiment of the invention;
FIG. 4 is a plan view of another part of the ultrasonic blade handle load performance test platform according to the embodiment of the invention;
FIG. 5 is a schematic block diagram of an ultrasonic blade handle load performance test platform according to an embodiment of the present invention;
fig. 6 is a flow chart of an ultrasonic tool shank load performance test method according to an embodiment of the invention.
Description of main reference numerals:
The ultrasonic tool comprises a test platform 200, an ultrasonic tool holder 600, a tool 601, a loading platform 100, a tool holder fixing mechanism 300, a laser displacement sensor fixing mechanism 400, a pressure sensor fixing mechanism 500, a first driving mechanism 101, a second driving mechanism 102, a third driving mechanism 103, a fourth driving mechanism 104, a fifth driving mechanism 105, a sixth driving mechanism 106, a seventh driving mechanism 107, an eighth driving mechanism 108, a ninth driving mechanism 109, a pressure sensor 110, a first tool holder pair 112, a second tool holder pair 113, a force loading frame 114, a first clamping notch 115, a second clamping notch 116 and a groove 117.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element 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 the like, 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 one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. It may be a mechanical connection that is made, or may be an electrical connection. Can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1-4, an ultrasonic tool shank load performance test platform 200 (hereinafter referred to as test platform 200) is provided according to an embodiment of the present invention, and is used for measuring an amplitude curve of a tool 601 mounted on an ultrasonic tool shank 600 at an end face of the tool 601 when the tool is subjected to different loads. The test platform 200 includes a loading table 100, a tool shank fixing mechanism 300, a laser displacement sensor fixing mechanism 400, and a pressure sensor fixing mechanism 500. The tool shank fixing mechanism 300, the laser displacement sensor fixing mechanism 400, and the pressure sensor fixing mechanism 500 are all mounted on the loading table 100.
The tool shank fixing mechanism 300 is used for fixing an ultrasonic tool shank 600, and the ultrasonic tool shank 600 is provided with a tool 601. Specifically, the ultrasonic blade handle 600 includes a primary side 602 and a secondary side 603, and the blade 601 is mounted on the secondary side 603. The primary side 602 is provided with a primary side coil and the secondary side 603 is provided with a secondary side coil. The test platform 200 may further include a power source, where the power source may perform wireless transmission of electric energy through the primary coil and the secondary coil, so that an ultrasonic signal with a certain voltage and frequency may be loaded on the cutter 601, so that the cutter 601 vibrates. And the distance between the primary coil and the secondary coil can be adjusted to realize different radio transmission effects according to performance or test requirements and the like. In the present embodiment, the test platform 200 does not rotate the tool 601 when testing the tool 601. The ultrasonic tool shank load performance test platform 200 may be applied to an ultrasonic machining system.
Referring to fig. 1, the handle fixing mechanism 300 includes a first driving mechanism 101, a second driving mechanism 102, a third driving mechanism 103, a first handle support pair 112, and a second handle support pair 113.
The first driving mechanism 101 is mounted on the loading table 100, the second driving mechanism 102 is mounted on the first driving mechanism 101, and the third driving mechanism 103 is mounted on the second driving mechanism 102.
The first pair of handle supports 112 is mounted on the second drive mechanism 102, and the second drive mechanism 102 is configured to drive the first pair of handle supports 112 to clamp the primary side 602 of the ultrasonic handle 600. The second pair of handle supports 113 is mounted on the third driving mechanism 103, and the third driving mechanism 103 is used for driving the second pair of handle supports 113 to clamp the secondary side 603 of the ultrasonic handle 600. In this way, the fixation and position adjustment of the cutter 601 can be achieved.
Specifically, the first driving mechanism 101 may be fixedly mounted on the loading table 100, and adjusting the first driving mechanism 101 may adjust the position of the ultrasonic blade handle 600 in the Y-axis direction (see the coordinate system shown in fig. 1), which may include a Y-axis positive direction and a Y-axis negative direction. The first driving mechanism 101 may include a screw driving mechanism or a linear motor driving mechanism, the second driving mechanism 102 may include a screw driving mechanism or a linear motor driving mechanism, and the third driving mechanism 103 may include a screw driving mechanism or a linear motor driving mechanism. In the embodiment shown in the drawings, the first driving mechanism 101, the second driving mechanism 102 and the third driving mechanism 103 are all screw driving mechanisms, and the screw driving mechanisms are simple in structure and low in cost. The first driving mechanism 101 includes two sliders, the second driving mechanism 102 is fixed on one of the sliders of the first driving mechanism 101, and the third driving mechanism 103 is fixed on the other slider of the first driving mechanism 101. The first handle support pair 112 and the second handle support pair 113 are fixed to the sliders of the second drive mechanism 102 and the third drive mechanism 103, respectively.
It will be appreciated that in other embodiments, the first, second and third drive mechanisms may also employ other drive mechanisms that enable linear movement, and are not specifically limited herein.
The first handle support pair 112 is formed with a first clamping notch 115, the first clamping notch 115 is diamond-shaped or circular, the second handle support pair 113 is formed with a second clamping notch 116, and the second clamping notch 116 is diamond-shaped or circular. Therefore, the tool handle can be clamped, and the tool handle is prevented from accidentally shaking in the testing process to influence the testing result.
Each cutter handle support pair comprises two opposite supports, a notch which is V-shaped or semicircular is formed on the opposite side surfaces of the two supports respectively, and the two notches of the two supports jointly form a clamping notch which is diamond-shaped or circular.
In the embodiment shown in fig. 1, the first clamping notch 115 and the second clamping notch 116 are diamond-shaped, so that the diamond-shaped clamping notch has good universality and can be applied to ultrasonic tool shanks 600 of various types. In other embodiments, the first clamping notch and the second clamping notch may also be rounded according to the size of the ultrasonic blade handle 600, and may be applied to a particular type of blade handle.
The laser displacement sensor fixing mechanism 400 includes a laser displacement sensor 111 for detecting an amplitude curve at the end face of the cutter 601. Specifically, during the test, the power supply applies an ultrasonic signal of a set voltage and frequency to the tool 601, causing the tool 601 to vibrate. The laser displacement sensor 111 may emit laser to the end face of the tool 601, and receive reflected laser from the end face of the tool 601, and measure an amplitude curve at the end face of the tool 601 from a change in displacement of the reflected laser. Specific principles one skilled in the art may refer to the related art and are not developed in detail herein.
The laser displacement sensor fixing mechanism 400 includes a fourth driving mechanism 104, a fifth driving mechanism 105, and a sixth driving mechanism 106, the fourth driving mechanism 104 is mounted on the loading table 100, the fifth driving mechanism 105 is mounted on the fourth driving mechanism 104, the sixth driving mechanism 106 is mounted on the fifth driving mechanism 105, the laser displacement sensor 111 is mounted on the sixth driving mechanism 106, and the fourth driving mechanism 104, the fifth driving mechanism 105, and the sixth driving mechanism 106 are respectively used for correspondingly adjusting the positions of the laser displacement sensor 111 in the Z-axis, the Y-axis, and the X-axis directions. Thus, the position adjustment and fixation of the laser displacement sensor 111 can be realized.
Specifically, the fourth drive mechanism 104 may be fixedly mounted on the loading station 100. The fourth drive mechanism 104 may include a screw drive mechanism or a linear motor drive mechanism. The fifth drive mechanism 105 may include a screw drive mechanism or a linear motor drive mechanism. The sixth drive mechanism 106 may include a screw drive mechanism or a linear motor drive mechanism. In the embodiment shown in the drawings, the fourth driving mechanism 104, the fifth driving mechanism 105 and the sixth driving mechanism 106 are all screw driving mechanisms, and the screw driving mechanisms are simple in structure and low in cost. The fifth driving mechanism 105 is fixed to the slider of the fourth driving mechanism 104, and the sixth driving mechanism 106 is fixed to the slider of the fifth driving mechanism 105. The laser displacement sensor 111 is fixed to the slider of the sixth driving mechanism 106.
It will be appreciated that in other embodiments, the fourth, fifth and sixth drive mechanisms may also employ other drive mechanisms that enable linear movement, and are not specifically limited herein.
The pressure sensor fixing mechanism 500 includes a pressure sensor 110 and a force loading frame 114, the force loading frame 114 is connected with the pressure sensor 110, the laser displacement sensor 111 is disposed in the force loading frame 114 and located between the pressure sensor 110 and the tool 601, the force loading frame 114 is provided with a through slot 117, the slot 117 is used for laser transmission (including laser emitted by the laser displacement sensor 111 and laser reflected by the tool 601), and the pressure sensor fixing mechanism 500 is used for applying load to the tool 601 through the pressure sensor 110 and the force loading frame 114.
Specifically, the force loading frame 114 is a frame, and in the embodiment shown in fig. 1, the force loading frame 114 is a square frame, and the laser displacement sensor 111 is disposed in the square frame. The laser displacement sensor 111 is arranged in the force loading frame 114, the laser displacement sensor 111 is spaced from the periphery of the force loading frame 114, the laser displacement sensor 111 and the force loading frame 114 are of a split structure, and vibration of the cutter 601 cannot be conducted to the laser displacement sensor 111 to influence a test result.
The force loading frame 114 comprises a first side 118 and a second side 119 opposite to each other, and a third side 120 and a fourth side 121 opposite to each other, wherein the third side 120 and the fourth side 121 are respectively connected to the first side 118 and the second side 119, the first side 118 is fixedly connected to the pressure sensor 110, the second side 119 is provided with a groove 117, the groove width of the groove 117 is smaller than the diameter of the cutter 601, and the length of the groove 117 satisfies the requirement of a laser transmission path.
Specifically, the first edge 118 may be fixedly coupled to the pressure sensor 110 by a screw. The second side 119 is provided with grooves 117 which are vertical grooves. In one example, the slot 117 has a slot width of 1mm and the cutter 601 has a diameter of 4mm. It is to be understood that the specific values of the examples are for convenience of description of the present invention and are not to be construed as limiting the invention, and that the values appearing in other parts of the specification of the present invention are to be understood as such.
The length of the groove 117 satisfies the requirement of the laser transmission path, and it is understood that the length of the groove 117 is such that the laser light emitted from the laser displacement sensor 111 toward the cutter 601 passes through the groove 117, and the laser light reflected from the cutter 601 passes through the groove 117. The laser displacement sensor 111 can thus measure the vibration profile at the end face of the tool 601.
The surface of the second side 119 opposite the tool 601 is provided with cushioning members 122 on both sides of the groove 117, the cushioning members 122 being adapted to abut the tool 601. In this way, hard contact between the force loading frame 114 and the tool 601 during testing can be prevented from damaging the force loading frame 114 and the tool 601.
In one example, the cushioning feature 122 may be rubber. In other embodiments, the cushioning feature 122 may also be other features, such as a material having a hardness less than the hardness of the force loading frame 114 and the tool 601, and having some elasticity.
The pressure sensor fixing mechanism 500 includes a seventh driving mechanism 107, an eighth driving mechanism 108, and a ninth driving mechanism 109, the seventh driving mechanism 107 is mounted on the loading table 100, the eighth driving mechanism 108 is mounted on the seventh driving mechanism 107, the ninth driving mechanism 109 is mounted on the eighth driving mechanism 108, one end of the pressure sensor 110 is connected to the ninth driving mechanism 109, the other end of the pressure sensor 110 is connected to the force loading frame 114, and the seventh driving mechanism 107, the eighth driving mechanism 108, and the ninth driving mechanism 109 are respectively used for correspondingly adjusting the positions of the pressure sensor 110 and the force loading frame 114 in the Z-axis, Y-axis, and X-axis directions. In this way, the position adjustment and fixation of the pressure sensor 110 and the force loading frame 114 can be achieved.
Specifically, the seventh driving mechanism 107 may be fixedly mounted on the loading table 100. The seventh driving mechanism 107 includes a screw driving mechanism or a linear motor driving mechanism, the eighth driving mechanism 108 includes a screw driving mechanism or a linear motor driving mechanism, and the ninth driving mechanism 109 includes a screw driving mechanism or a linear motor driving mechanism. In the embodiment shown in the drawings, the seventh driving mechanism 107, the eighth driving mechanism 108 and the ninth driving mechanism 109 are all screw driving mechanisms, and the screw driving mechanisms are simple in structure and low in cost. The eighth driving mechanism 108 is fixed to the slider of the seventh driving mechanism 107, and the ninth driving mechanism 109 is fixed to the slider of the eighth driving mechanism 108. One end of the pressure sensor 110 is fixed to the slider of the ninth driving mechanism 109, and the other end is fixedly connected to the force loading frame 114.
Further, referring to fig. 5, the test platform 200 includes a controller 123 and a control handle 124, the control handle 124 is electrically connected to the controller 123, and the controller 123 is configured to control the test platform 200 to operate according to a control signal of the control handle 124. In this manner, the required control of test platform 200 may be achieved.
Specifically, the controller 123 may include a PLC controller or other controllers, and the control handle 124 may be provided with physical or virtual keys, so as to control the operation state of the test platform 200, for example, control the movement of each driving mechanism, and the switch of each electrical component, including but not limited to, adjusting and fixing the position of the cutter 601, the laser displacement sensor 111, and the pressure sensor 110, loading an ultrasonic signal with a certain voltage and frequency on the cutter 601, and ending the test. In the embodiment of the invention, each driving mechanism adopts a screw rod driving mechanism, so that the cost is further reduced. The test platform 200,9 sets of screw drive mechanisms of this embodiment are manual, and the hand wheel is manually rotated to adjust the position of the slider in the screw drive mechanism. In other embodiments, the screw drive mechanism may be modified to be automatically adjusted, and the motor may be assembled in the screw drive mechanism.
Referring to fig. 6, an embodiment of the present invention provides a method for testing the load performance of an ultrasonic tool holder, which is used for measuring an amplitude curve of a tool 601 mounted on an ultrasonic tool holder 600 at an end face of the tool 601 when the tool 601 is subjected to different loads by using the test platform 200 according to the above embodiment.
The ultrasonic knife handle load performance testing method comprises the following steps:
step 01, fixing an ultrasonic knife handle 600 by utilizing a knife handle fixing mechanism 300;
Step 02, adjusting the pressure sensor fixing mechanism 500 to enable the groove of the force loading frame to be propped against the end face of the cutter 601;
Step 03, adjusting the laser displacement sensor fixing mechanism 400 so that the laser displacement sensor 111 can detect an amplitude curve at the end face of the tool 601, and both the laser emitted by the laser displacement sensor 111 and the laser reflected by the tool 601 can pass through the groove 117 of the force loading frame 114;
Step 04, adjusting the pressure sensor fixing mechanism 500, applying a load to the tool 601 by the force loading frame 114, and recording the end face amplitude curve of the tool 601 detected by the laser displacement sensor 111 under different load conditions.
According to the ultrasonic knife handle load performance testing method, when the load is applied to the cutter of the ultrasonic knife handle through the pressure sensor, the laser displacement sensor can be used for measuring the amplitude curve at the end face of the cutter, so that the performance testing of the ultrasonic knife handle is realized.
Specifically, in the above steps, the respective driving mechanisms may be controlled so that the groove of the force loading frame abuts against the end face of the tool 601, and so that the laser displacement sensor 111 can detect the amplitude curve at the end face of the tool 601, and the load is applied to the tool 601 by the force loading frame 114.
Specifically, in step 01, the ultrasonic blade holder 600 is clamped by the second driving mechanism 102 and the third driving mechanism 103, and the ultrasonic blade holder 600 and the tool 601 are fixed. The position of the ultrasonic blade holder 600 in the Y-axis direction can also be adjusted by the first driving mechanism 101.
In step 02, the slot 117 of the force loading carriage can be brought into abutment against the end face of the tool 601 by at least one of the fourth, fifth and sixth drive mechanisms 106.
In step 03, at least one of the seventh, eighth and ninth drive mechanisms 109 may be passed to enable the laser displacement sensor 111 to detect an amplitude profile at the end face of the tool 601, both the laser light emitted by the laser displacement sensor 111 and the laser light reflected by the tool 601 being able to pass through the slot 117 of the force loading frame 114.
In step 04, the corresponding amplitude curves are measured by setting different loads (e.g. pressures), and during the test, ultrasonic signals of a certain voltage and frequency are applied to the tool 601 to vibrate the tool 601. In one example, a first set of amplitude curves is measured by idling, i.e., loading with 0 newtons, then loading with 5 newtons, a second set of amplitude curves is measured, then loading with 10 newtons, a third set of amplitude curves is measured, and so on. Thus, a load range for the effective operation of the tool 601 can be obtained, and performance testing of the tool 601 is realized.
In summary, advantages of the present invention include, but are not limited to, the following:
1. While applying a load on the tool 601 of the ultrasonic blade holder 600, the amplitude profile at the end face of the tool 601 may be measured using the laser displacement sensor 111;
2. the laser displacement sensor 111 and the force loading frame 114 are of a split structure, and vibration of the cutter 601 cannot be transmitted to the laser displacement sensor 111;
3. accurately and quantitatively applying a load on the end face of the vibration cutter 601;
4. the test device is suitable for testing knife handles with various specifications such as BT, HSK, ISO and has universality;
5. the position of each part is conveniently and accurately regulated, the test time is short and the efficiency is high.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The disclosure herein provides many different embodiments or examples for implementing different structures of the invention. To simplify the present disclosure, components and arrangements of specific examples are described herein. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. An ultrasonic knife handle load performance test platform for measuring the amplitude curve of cutter end face department when bearing different loads of cutter that loads on ultrasonic knife handle, its characterized in that, test platform includes:
The loading platform is provided with a loading platform,
The cutter handle fixing mechanism is arranged on the loading table and used for fixing the ultrasonic cutter handle, the ultrasonic cutter handle is provided with the cutter,
A laser displacement sensor fixing mechanism mounted on the loading table, the laser displacement sensor fixing mechanism including a laser displacement sensor for detecting an amplitude curve at the tool end face, and
The pressure sensor fixing mechanism is arranged on the loading table and comprises a pressure sensor and a force loading frame, the force loading frame is connected with the pressure sensor, the laser displacement sensor is arranged in the force loading frame and positioned between the pressure sensor and the cutter, the force loading frame is provided with a through groove for laser transmission, and the pressure sensor fixing mechanism is used for applying load to the cutter through the pressure sensor and the force loading frame;
The pressure sensor fixing mechanism further includes:
A seventh driving mechanism mounted on the loading table;
An eighth drive mechanism mounted on the seventh drive mechanism;
the ninth driving mechanism is arranged on the eighth driving mechanism, one end of the pressure sensor is connected with the ninth driving mechanism, the other end of the pressure sensor is connected with the force loading frame, and the seventh driving mechanism, the eighth driving mechanism and the ninth driving mechanism are respectively used for correspondingly adjusting the positions of the pressure sensor and the force loading frame in the Z-axis, Y-axis and X-axis directions;
the force loading frame comprises a first side and a second side which are opposite, the first side is fixedly connected with the pressure sensor, the second side is provided with a groove, the groove width of the groove is smaller than the diameter of the cutter, and the length of the groove meets the requirement of a laser transmission path.
2. The ultrasonic blade handle load performance test platform of claim 1, wherein the blade handle securing mechanism comprises:
a first driving mechanism installed on the loading table,
A second driving mechanism mounted on the first driving mechanism,
A third driving mechanism mounted on the second driving mechanism,
The first cutter handle support pair is arranged on the second driving mechanism, and the second driving mechanism is used for driving the first cutter handle support pair to clamp the primary side of the ultrasonic cutter handle;
The second handle support pair is installed on the third driving mechanism, the third driving mechanism is used for driving the second handle support pair to clamp the secondary side of the ultrasonic handle, and the cutter is installed on the secondary side.
3. The ultrasonic blade handle load performance test platform of claim 2, wherein the first drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism, the second drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism, and the third drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism.
4. The ultrasonic blade handle load performance test platform of claim 2, wherein the first blade handle support pair is formed with a first clamping notch, the first clamping notch is diamond-shaped or circular, the second blade handle support pair is formed with a second clamping notch, and the second clamping notch is diamond-shaped or circular.
5. The ultrasonic blade handle load performance test platform of any one of claims 1-4, wherein the laser displacement sensor securing mechanism comprises:
a fourth driving mechanism installed on the loading table,
A fifth driving mechanism mounted on the fourth driving mechanism,
And the fourth driving mechanism, the fifth driving mechanism and the sixth driving mechanism are respectively used for correspondingly adjusting the positions of the laser displacement sensor in the Z-axis, Y-axis and X-axis directions.
6. The ultrasonic blade handle load performance test platform of claim 5, wherein the fourth drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism, the fifth drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism, and the sixth drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism.
7. The ultrasonic blade handle load performance test platform of claim 1, wherein the seventh drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism, the eighth drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism, and the ninth drive mechanism comprises a lead screw drive mechanism or a linear motor drive mechanism.
8. The ultrasonic shank load performance test platform according to claim 1, wherein the surface of the second side opposite to the cutter is provided with buffer parts positioned at two sides of the groove, and the buffer parts are used for abutting against the cutter.
9. The ultrasonic tool shank load performance test platform according to claim 1, wherein the test platform comprises a controller and a control handle, the control handle is electrically connected with the controller, and the controller is used for controlling the test platform to operate according to a control signal of the control handle.
10. An ultrasonic tool shank load performance test method for measuring an amplitude curve of a tool loaded on an ultrasonic tool shank at the end face of the tool when the tool is subjected to different loads by using the ultrasonic tool shank load performance test platform according to any one of claims 1 to 9,
The test method comprises the following steps:
The ultrasonic knife handle is fixed by utilizing the knife handle fixing mechanism;
Adjusting the pressure sensor fixing mechanism to enable the groove of the force loading frame to be propped against the end face of the cutter;
Adjusting the laser displacement sensor fixing mechanism so that the laser displacement sensor can detect an amplitude curve at the end face of the cutter, and the laser emitted by the laser displacement sensor and the laser reflected by the cutter can pass through a groove of the force loading frame;
and adjusting the pressure sensor fixing mechanism, applying load to the cutter by the force loading frame, and recording cutter end face amplitude curves detected by the laser displacement sensor under different load conditions.
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| CN113465721B (en) * | 2021-06-11 | 2022-09-23 | 北京航空航天大学 | Multi-mode ultrasonic amplitude measurement method and device based on constant impedance |
| CN113820997A (en) * | 2021-09-14 | 2021-12-21 | 深圳市青鼎装备有限公司 | Method for mutual communication between ultrasonic controller and machine tool numerical control system |
| CN114290423B (en) * | 2021-12-15 | 2024-03-12 | 杭州电子科技大学 | Amplitude measurement and tool setting method |
| CN114509148B (en) * | 2021-12-27 | 2023-03-31 | 南京航空航天大学 | Device and method for measuring amplitude of longitudinal-torsional ultrasonic vibration cutter handle under load condition |
| CN115077691B (en) * | 2022-07-15 | 2024-04-09 | 清华大学 | Measuring device and evaluating method for bearing capacity of ultrasonic processing system |
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| CN213985642U (en) * | 2020-12-16 | 2021-08-17 | 深圳市青鼎装备有限公司 | Ultrasonic knife handle load performance test platform |
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| CN104526464B (en) * | 2014-11-27 | 2016-08-31 | 华中科技大学 | A kind of cutter jerk value and the measuring method of blade initial angle and device |
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| CN109894642A (en) * | 2019-04-04 | 2019-06-18 | 东莞市泛特科技有限公司 | Ultrasonic handle |
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