Knife handle stress display method

Abstract

A tool holder stress display method is applied to a monitoring system, the monitoring system comprises a processing device and a displayer, the processing device is in signal connection with a stress detection device of a tool holder in a wireless mode, and the stress detection device senses stress of the tool holder and generates original stress data; and the processing device draws according to the original stress data so as to form a stress distribution diagram in the coordinate graph. Therefore, by means of the stress distribution diagram displayed through the tool holder stress display method, a user can monitor the operation state of the tool holder in real time.

Description

Technical Field

[0001] This invention relates to sensing devices; in particular, it relates to a method for displaying the force applied to a knife handle. Background Technology

[0002] During the machining process, the operating status of the cutting tools must be monitored at all times to ensure that the machining of the parts meets the design specifications and to prevent problems such as abnormal machining accuracy caused by tool wear.

[0003] For example, the invention patent disclosed in US Patent Publication No. US8113066B2, entitled "Chuck integrated force-measuring system", involves installing at least one strain sensor on the rotating spindle of a machine tool to measure the instantaneous force at the tip of the cutting tool, and determining the magnitude and direction of the instantaneous force through strain sensing.

[0004] However, the existing chuck-integrated measurement system can only measure the force exerted on the cutting tool when it contacts the workpiece, and does not present it as data or graphics. Therefore, the data display method of the existing chuck-integrated measurement system is still imperfect and needs improvement. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a method for displaying the force on a knife handle, enabling users to monitor the operating status of the knife handle in real time.

[0006] To achieve the above objectives, the present invention provides a method for displaying the force on a knife handle, applied to a monitoring system. The monitoring system includes a processing device and a display. The processing device is wirelessly connected to a force detection device on the knife handle. The force detection device senses the force on the knife handle and generates raw force data. The method for displaying the force on the knife handle includes the following steps: the processing device receives the raw force data and converts it into force data; the processing device obtains multiple data elements from the force data, each data element including a first bending moment force value and a second bending moment force value, wherein the first bending moment force value corresponds to the bending moment force of the knife handle in a first axis, and the second bending moment force value corresponds to the bending moment force of the knife handle in a second axis, the first axis being perpendicular to the second axis; the processing device... A predetermined number of data elements are selected from the plurality of data elements to form a batch of data elements; the processing device establishes a coordinate graph on a display interface on the display, the coordinate graph including an X-axis and a Y-axis; the processing device generates an X-coordinate value of the X-axis based on the first bending moment force value of each data element in the batch of data elements, and generates a Y-coordinate value of the Y-axis based on the second bending moment force value of each data element in the batch of data elements, and draws a data point corresponding to each data element on the coordinate graph based on the generated X-coordinate value and Y-coordinate value, until all data points corresponding to all data elements in the batch of data elements are drawn, and the drawn plurality of data points form a force distribution diagram in the coordinate graph.

[0007] The advantage of this invention is that the cutting point of the tool handle acting on the workpiece contains a significant amount of information, enabling real-time detection of the force borne by the tool handle during machining. By analyzing the force borne by the tool handle during machining, not only can the workpiece accuracy be improved, but the state of the tool handle can also be predicted, thereby ensuring the stability of production efficiency. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of a preferred embodiment of the knife handle force display method of the present invention.

[0009] Figure 2 This is a circuit diagram of the knife handle force display method according to the preferred embodiment of the present invention.

[0010] Figure 3 The above-described preferred embodiment of the knife handle force display method is a flowchart illustrating steps S11 to S15.

[0011] Figure 4 The above-described preferred embodiment of the knife handle force display method is shown in the flowcharts of steps S21 to S23.

[0012] Figure 5 This is a schematic diagram of the display interface of the display of the knife handle force display method according to the above preferred embodiment of the present invention.

[0013] Figure 6 The above-described flowchart illustrates steps S16 to S18 of the knife handle force display method according to the preferred embodiment of the present invention.

[0014] Figure 7 This is a schematic diagram of the display interface of the display of the knife handle force display method according to the above preferred embodiment of the present invention.

[0015] Figure 8 The above-described preferred embodiment of the knife handle force display method is shown in the flowcharts of steps S31 to S33.

[0016] Figure 9 This is a schematic diagram of the coordinate graph of the knife handle force display method according to the above preferred embodiment of the present invention.

[0017] Figure 10 This is a schematic diagram of the blade color display in the knife handle force display method of the above preferred embodiment of the present invention.

[0018] Figure 11 The flowchart of steps S321 to S324 of the knife handle force display method in the preferred embodiment of the present invention is shown.

[0019] Figure 12 This is a statistical diagram showing the angle distribution of the knife handle force display method according to the preferred embodiment of the present invention.

[0020] Figure 13 This is a schematic diagram of angle calculation for the knife handle force display method of the preferred embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1: Knife handle

[0023] 1a: Cutting tools

[0024] 2: Force detection device

[0025] 2a: First bending moment force sensing unit

[0026] 2b: Second bending moment force sensing unit

[0027] 2c: Torque force sensing unit

[0028] 2d: Axial force sensing unit

[0029] 3: Circuit board

[0030] 4: Control Module

[0031] 4a: Analog / Digital Signal Converter

[0032] 4b: Controller

[0033] 5: Temperature sensing module

[0034] 6: Wireless transmission module

[0035] 7: Antenna

[0036] 10: Processing device

[0037] 20: Monitor

[0038] 21: Display Interface

[0039] 30: Coordinate graph

[0040] 31: Force Distribution Diagram

[0041] 32: Arc

[0042] 40: Timeline Control Interface

[0043] C: Central circle

[0044] P: Central Reference Point

[0045] r: Predetermined radius

[0046] L1: First Axial Direction

[0047] L2: Second Axial

[0048] L3: Third Axis

[0049] R1: First display area

[0050] R2: Second display area

[0051] R3: Third Display Area

[0052] R4: Fourth Display Area

[0053] R5: Fifth Display Area

[0054] I: First Quadrant

[0055] II: Second Quadrant

[0056] III: Third Quadrant

[0057] IV: Fourth Quadrant

[0058] V S1 First sensing signal

[0059] V S2 Second sensing signal

[0060] V S3 Third sensing signal

[0061] V S4 Fourth sensing signal

[0062] V S5 Temperature sensing signal

[0063] S11~S18: Steps

[0064] S21~S23: Steps

[0065] S31~S33: Steps

[0066] S321~S324: Steps Detailed Implementation

[0067] To more clearly illustrate the present invention, preferred embodiments are described in detail below with reference to the accompanying drawings. Please refer to... Figures 1 to 5 The diagram illustrates a preferred embodiment of a knife handle force display method, applied to a monitoring system. The monitoring system includes a processing device 10 and a display 20. The processing device 10 is wirelessly connected to a force detection device 2 on a knife handle 1. The knife handle 1 is connected to a knife 1a, which has multiple cutting edges. The force detection device 2 senses the force on the knife handle 1 and outputs at least one sensing signal. In this embodiment, the knife handle 1 is exemplified by a rotating handle, but this is not a limitation. The processing device 10 is exemplified by a computer host, but this is not a limitation.

[0068] More specifically, in this embodiment, the at least one sensing signal is a plurality of signals, including a first sensing signal V. S1 A second sensing signal V S2 A third sensing signal V S3 and a fourth sensing signal V S4 The force detection device 2 includes a plurality of force sensing units, which include a first bending moment force sensing unit 2a, a second bending moment force sensing unit 2b, a torque force sensing unit 2c and an axial force sensing unit 2d.

[0069] like Figure 1 As shown, the first bending moment force sensing unit 2a is used to sense the force on the handle 1 along a first axial direction L1 and output the corresponding first sensing signal V. S1 When the stress on the knife handle 1 along the first axial direction L1 is greater, the first sensing signal V... S1 The absolute value of strain is large.

[0070] The second bending moment force sensing unit 2b is used to sense the force on the handle 1 along a second axial direction L2 and output the corresponding second sensing signal V. S2 The second axis L2 is perpendicular to the first axis L1. When the stress on the handle 1 along the second axis L2 is greater, the second sensing signal V... S2 The absolute value of strain is large.

[0071] The torque sensing unit 2c is used to sense the torque force exerted on the handle 1 around a third axis L3 and output the corresponding third sensing signal V. S3 The third axis L3 is perpendicular to the first axis L1 and the second axis L2. The greater the torque force on the handle 1, the stronger the third sensing signal V... S3 The absolute value of strain is large.

[0072] The axial force sensing unit 2d is used to sense the axial force of the handle 1 along the direction of the third axis L3 and output the corresponding fourth sensing signal V. S4 When the axial force on the handle 1 along the third axis L3 is greater, the fourth sensing signal V... S4 The absolute value of strain is large.

[0073] like Figure 2 As shown, the handle 1 contains a circuit board 3, which includes a control module 4, a temperature sensing module 5, and a wireless transmission module 6. The control module 4 includes an analog-to-digital converter 4a and a controller 4b. The controller 4b can be, for example, a microcontroller. The controller 4b is electrically connected to the analog-to-digital converter 4a, and the analog-to-digital converter 4a is electrically connected to the first bending moment force sensing unit 2a, the second bending moment force sensing unit 2b, the torque force sensing unit 2c, and the axial force sensing unit 2d. The controller 4b obtains the first sensing signal V through the analog-to-digital converter 4a. S1 The second sensing signal V S2 The third sensing signal V S3 and the fourth sensing signal V S4 .

[0074] The temperature sensing module 5 is electrically connected to the controller 4b. The temperature sensing module 5 is used to sense the temperature change experienced by the handle 1 and output a corresponding temperature sensing signal V. S5 .

[0075] The wireless transmission module 6 is electrically connected to the controller 4b. The force detection device 2 also includes an antenna 7, which is electrically connected to the wireless transmission module 6. In this embodiment, the antenna 7 is printed on a flexible circuit board. Thus, the controller 4b transmits the first sensing signal V through the wireless transmission module 6 and the antenna 7. S1 The second sensing signal V S2 The third sensing signal V S3 The fourth sensing signal V S4 and the temperature sensing signal V S5 The signal is transmitted to the processing device 10. In this way, the user can receive the first sensing signal V in real time through the processing device 10. S1 The second sensing signal V S2 The third sensing signal V S3 The fourth sensing signal V S4 and the temperature sensing signal V S5 This generates raw force data to effectively monitor and analyze the cutting process.

[0076] The above-described architecture enables the knife handle force display method of this embodiment. Please refer to... Figures 3 to 5 As shown, the method for displaying the force on the knife handle includes the following steps S11 to S15:

[0077] Step S11: The processing device 10 receives the raw force data and converts it into force data. The raw force data includes multiple raw data sets, multiple raw torque force values, and multiple raw axial force values. Each raw data set includes a first raw bending moment force value and a second raw bending moment force value. The first raw bending moment force value is the first sensing signal V output by the first bending moment force sensing unit 2a. S1 The second original bending moment force value is derived from the second sensing signal V output by the first bending moment force sensing unit 2a. S2 The original torque values ​​are derived from the third sensing signal V output by the torque sensing unit 2c. S3 The original axial force values ​​are derived from the fourth sensing signal V output by the axial force sensing unit 2d. S4 It was converted from.

[0078] Next, after receiving each set of original data, each original torque force value, and each original axial force value of the original force data, the processing device 10 performs numerical correction on the first original bending moment force value, the second original bending moment force value, each original torque force value, and each original axial force value. The correction process will be described in detail below.

[0079] After receiving the original force data, the processing device 10 performs a conversion process on each of the original data sets to obtain the force data. The force data includes multiple converted data sets, each of which includes a first corrected bending moment force value, a second corrected bending moment force value, a corrected torque force value, and a corrected axial force value. The conversion process involves subtracting a first reference bending moment force value from the first original bending moment force value of each original data set to obtain the corresponding first corrected bending moment force value; subtracting a second reference bending moment force value from the second original bending moment force value of each original data set to obtain the corresponding second corrected bending moment force value; subtracting a reference torque force value from the original torque force value of each original data set to obtain the corresponding corrected torque force value; and subtracting a reference axial force value from the original axial force value of each original data set to obtain the corresponding corrected axial force value. The calculation methods for the first reference bending moment force value, the second reference bending moment force value, the reference torque force value, and the reference axial force value are as follows.

[0080] The first reference bending moment force value is obtained when the tool 1a is not under force. The conversion process extracts multiple first original bending moment force values ​​from the original force data at a first predetermined time and calculates the average of the multiple first original bending moment force values ​​to form the first reference bending moment force value.

[0081] The second reference bending moment force value is obtained when the tool 1a is not under force. The conversion process extracts multiple second original bending moment force values ​​from the original force data at a second predetermined time and calculates the average of the multiple second original bending moment force values ​​to form the first reference bending moment force value.

[0082] The reference torque value is obtained when the tool 1a is not under force. The conversion process extracts multiple original torque values ​​from the original force data at a third predetermined time and calculates the average of the multiple original torque values ​​to form the reference torque value.

[0083] The reference axial force value is obtained when the tool 1a is not under force. The conversion process extracts multiple original axial force values ​​from the original force data at a fourth predetermined time and calculates the average of the multiple original axial force values ​​to form the reference axial force value.

[0084] Wherein, the first predetermined time, the second predetermined time, the third predetermined time and the fourth predetermined time are the same predetermined time, the predetermined time is, for example, 1 second, but is not limited thereto, the predetermined time can be greater than 0 seconds and less than or equal to 1.5 seconds.

[0085] By correcting the original force data, not only can the errors generated by the first bending moment force sensing unit 2a, the second bending moment force sensing unit 2b, the torque force sensing unit 2c and the axial force sensing unit 2d during the measurement process be reduced, but the corrected values ​​can better reflect the actual force situation of the handle 1, thereby improving the accuracy of measurement and data.

[0086] Furthermore, in this embodiment, to facilitate user observation of the force changes on the handle 1, a compensation coefficient can be multiplied to obtain the first corrected bending moment force value, the second corrected bending moment force value, the corrected torque force value, and the corrected axial force value. More specifically, the conversion process involves subtracting the first reference bending moment force value from the first original bending moment force value and then multiplying it by a first compensation coefficient to obtain the first corrected bending moment force value.

[0087] The conversion process involves subtracting the second reference bending moment value from the second original bending moment value and then multiplying it by a second compensation coefficient to obtain the second corrected bending moment value.

[0088] The conversion process involves subtracting the reference torque value from the original torque value and then multiplying it by a torque compensation coefficient to obtain the corrected torque value.

[0089] The conversion process involves subtracting the reference axial force value from the original axial force value and then multiplying it by an axial force compensation coefficient to obtain the corrected axial force value.

[0090] In this embodiment, the first compensation coefficient, the second compensation coefficient, the torque compensation coefficient, and the axial force compensation coefficient can be adjusted to different values ​​as needed. In other embodiments, the first compensation coefficient, the second compensation coefficient, the torque compensation coefficient, and the axial force compensation coefficient can also be adjusted to partially identical values ​​as needed. For example, the first compensation coefficient and the second compensation coefficient are 1.5, and the torque compensation coefficient and the axial force compensation coefficient are 2.

[0091] By multiplying by various compensation coefficients as described above, the values ​​of the first corrected bending moment, the second corrected bending moment, the corrected torque, and the corrected axial force are compensated. In this way, different compensation coefficients can be selected for different specifications of tool handle 1 to compensate for different specifications of tool handle 1, so as to achieve the displayed value close to the characteristics of the real tool handle 1, thereby improving the readability of the data and the accuracy of the analysis.

[0092] Step S12: The processing device 10 obtains multiple data elements from the force data. Each data element includes a first bending moment force value, a second bending moment force value, a torque force value, and an axial force value. The first bending moment force value is the first corrected bending moment force value of each of the converted data groups; the second bending moment force value is the second corrected bending moment force value of each of the converted data groups; the torque force value is the corrected torque force value of each of the converted data groups; and the axial force value is the corrected axial force value of each of the converted data groups. The first bending moment force value corresponds to the bending moment force experienced by the tool handle 1 along the first axis L1; the second bending moment force value corresponds to the bending moment force experienced by the tool handle 1 along the second axis L2; ​​the torque force value corresponds to the torque force experienced by the tool handle 1 around the third axis L3; and the axial force value corresponds to the axial force experienced by the tool handle 1 along the third axis L3.

[0093] Step S13: The processing device 10 selects a predetermined number of the plurality of data elements from the plurality of data elements to form a batch of data elements. In this embodiment, the predetermined number is 1000 records, and the processing device 10 selects 1000 data elements from the plurality of data elements to form a batch of data elements. However, this is not a limitation, and the user can determine the predetermined number of data elements in a batch according to their needs. Furthermore, each of the plurality of data elements obtained by the processing device 10 from the force data has an index value, and the plurality of index values ​​are sequentially increasing. The processing device 10 sequentially selects the predetermined number of the plurality of data elements according to their index values ​​to form the batch of data elements. That is, the processing device 10 numbers each of the 1000 data elements starting from 1 and incrementing them, i.e., index values ​​1 to 1000 are the first batch of data elements, index values ​​1001 to 2000 are the second batch of data elements, index values ​​2001 to 3000 are the third batch of data elements, and so on.

[0094] Step S14: The processing device 10 establishes a coordinate graph 30 on a display interface 21 on the display 20. The coordinate graph 30 includes an X-axis and a Y-axis. Since the first bending moment force value, the second bending moment force value, the torque force value, and the axial force value are corrected values, the origin (0,0) of the coordinate graph 30 is the intersection point of the X-axis and the Y-axis.

[0095] Step S15: The processing device 10 generates an X-axis coordinate value based on the first bending moment force value of each data element in the batch of data elements, and generates a Y-axis coordinate value based on the second bending moment force value of each data element in the batch of data elements. Based on the generated X-axis coordinate value and Y-axis coordinate value, a data point corresponding to each data element is drawn on the coordinate graph 30 until all data points corresponding to all data elements in the batch of data elements are drawn. The drawn multiple data points form a force distribution diagram 31 in the coordinate graph 30. In other words, the processing device 10 plots the X-coordinate value (a first bending moment force value) and the Y-coordinate value (a second bending moment force value) of index value 1 (a data element) in the first batch of data elements on the force distribution diagram 31 to form a data point; the processing device 10 then plots the X-coordinate value (another first bending moment force value) and the Y-coordinate value (another second bending moment force value) of index value 2 (another data element) on the force distribution diagram 31 to form another data point, and so on up to index value 1000.

[0096] In addition, to allow users to more intuitively understand the force applied to the handle 1, the force display method for the handle also includes a force color display step S21 to S23, which includes:

[0097] Step S21: The processing device 10 establishes multiple numerical ranges, each numerical range corresponding to a specific color;

[0098] Step S22: The processing device 10 calculates the cutting force (CF) value for each data point, wherein the cutting force value for each data point is CF, the X coordinate value for each data point is x, and the Y coordinate value for each data point is y, which satisfies the following formula:

[0099] Step S23: Select a corresponding color based on the numerical range corresponding to the cutting force value of each data point, and display each data point in the selected color.

[0100] In this embodiment, as Figure 5As shown, the processing device 10 establishes multiple numerical ranges, such as 0 N·m to 0.57 N·m, 0.58 N·m to 1.13 N·m, 1.14 N·m to 1.7 N·m, 1.71 N·m to 2.27 N·m, 2.28 N·m to 2.83 N·m, and 2.84 N·m to 3.4 N·m, respectively, and each of the numerical ranges has a corresponding color. The processing device 10 selects the corresponding color based on the cutting force value of each data point within the numerical range to display it in the force distribution diagram 31 of the coordinate graph 30. This allows the user to quickly determine the force situation based on the color of the cutting force value without needing detailed numerical analysis, saving analysis and judgment time and improving work efficiency.

[0101] like Figure 5 As shown, the display interface 21 includes a first display area R1, a second display area R2, a third display area R3, a fourth display area R4, and a fifth display area R5. The first display area R1 displays the force distribution diagram 31 of the coordinate graph 30; the second display area R2 displays the waveforms of the first corrected bending moment force value, the second corrected bending moment force value, and the cutting force value of the force data; the third display area R3 displays the waveform of the corrected axial force value of the force data; the fourth display area R4 displays the waveform of the corrected torque force value of the force data; and the fifth display area R5 displays the temperature sensing signal V output by the temperature sensing module 5. S5 The waveform of the converted temperature value. In this embodiment, the graphics on the display interface 21 are drawn using OpenGL, but this is not a limitation.

[0102] Please cooperate. Figures 6 to 7 As shown, the method for displaying the force on the knife handle further includes repeating the following steps S16 to S18 to form multiple stacked force distribution diagrams 31:

[0103] Step S16: The coordinate graph 30 further includes a Z-axis, and the first force distribution diagram 31 is displayed on the Z-axis; wherein the coordinate graph 30 is displayed in a rotatable manner on the first display area R1 of the display interface 21 of the display 20. The user can adjust the viewing angle of the coordinate graph 30 through operating devices such as a mouse or touch screen.

[0104] Step S17: The processing device 10 takes another predetermined number of the plurality of data elements to form another batch of data elements; in this embodiment, the processing device 10 sets the index values ​​1 to 1000 as the first batch of data elements, the index values ​​1001 to 2000 as the second batch of data elements, the index values ​​2001 to 3000 as the third batch of data elements, and so on.

[0105] Step S18: The processing device 10 generates the X-axis coordinate value based on the first bending moment force value of each data element in the other batch of data elements, and generates the Y-axis coordinate value based on the second bending moment force value of each data element in the other batch of data elements. It then draws a data point corresponding to each data element on the coordinate graph 30 based on the generated X-axis and Y-axis coordinate values, until all data points corresponding to all data elements in the other batch of data elements are drawn. The drawn data points form another force distribution diagram 31 on the Z-axis in the coordinate graph 30, and are adjacent to the previously formed force distribution diagram 31 on the Z-axis. In this embodiment, the processing device 10 first draws the data points with index values ​​1 to 1000 of the first batch of data elements on the force distribution diagram 31. Next, the processing device 10 continues to plot the data points of the second batch of data elements with index values ​​1001 to 2000 on the force distribution diagram 31. The data points of the first batch of data elements and the second batch of data elements are displayed adjacent to each other on the Z-axis, with the data points of the second batch of data elements located above the data points of the first batch of data elements. The data points of each subsequent batch of data elements are stacked sequentially upwards along the Z-axis. In this way, the multiple force distribution diagrams 31 can be sequentially attached to the coordinate graph 30 according to the time sequence in which they are generated. In addition, a time axis control interface 40 can also be displayed on the display interface 21. The time sequence can be adjusted through the time axis control interface 40 so that the user can view the data points of the force distribution diagram 31 in the first display area R1 and the waveform data points of the second to fifth display areas R2 to R5 generated at a specific time.

[0106] The coordinate graph 30 has a predetermined number of displays on the Z-axis. When the number of the multiple force distribution diagrams 31 exceeds the predetermined number of displays, the first force distribution diagram 31 is replaced by the subsequent force distribution diagram 31, so that the force distribution diagrams 31 exceeding the predetermined number of displays continue to be displayed on the Z-axis. For example, a user can set the predetermined display number to 20 batch data elements. The processing device 10 sequentially draws the first batch data element, the second batch data element to the twentieth batch data element on the coordinate graph 30. Then, when the processing device 10 draws the force distribution diagram 31 of the twenty-first batch data element, the processing device 10 removes the force distribution diagram 31 of the first batch data element, moves the force distribution diagrams 31 of the second to the twentieth batch data elements downward, and then draws the force distribution diagram 31 of the twenty-first batch data element, so that the predetermined display number remains twenty batch data elements, that is, the coordinate graph 30 displays the second to the twenty-first batch data elements.

[0107] Please continue to cooperate. Figure 5 and Figure 7 As shown, the force distribution diagram 31 further indicates the display method of the maximum torque force value and the maximum axial force value, and its drawing method is as follows.

[0108] The processing device 10 obtains the torque force value that is the largest in absolute value from the plurality of data elements in the batch data elements and defines it as a maximum torque force value; the maximum torque force value is displayed in the coordinate graph 30 as a corresponding arc 32. The display of the arc 32 requires the user to set a maximum display torque force value as needed, and the arc 32 has a corresponding central angle, α, which satisfies the following formula:

[0109]

[0110] The maximum torque value is Tm, and the maximum displayed torque value is Td.

[0111] Next, the processing device 10 obtains the axial force value that is the largest in absolute value from the plurality of data elements in the plurality of batch data elements and defines it as a maximum axial force value; the processing device 10 uses the maximum axial force value as a Z coordinate value of the Z axis and displays the arc 32 on a plane in the coordinate graph 30 corresponding to the Z coordinate value.

[0112] In this embodiment, the maximum torque force value and the maximum axial force value are extracted from the data elements corresponding to the plurality of data points displayed in the coordinate graph 30 to form the maximum torque force value and the maximum axial force value.

[0113] The user sets the maximum displayed torque value Td to 1.36, and the maximum torque value Tm obtained among the multiple data elements of the first batch of data elements is 1.29 N·m. Applying the formula, the central angle α is calculated to be 170.7 degrees. The maximum axial force value obtained among the multiple data elements of the first batch of data elements is 29.4 N. Therefore, the processing device 10 draws an arc of 170.7 degrees on the plane with the Z-coordinate value of 29.4 N in the force distribution diagram 31 of the coordinate graph 30 to display the maximum torque value and the maximum axial force value among the first batch of data elements. Where the maximum torque value is +1.29 N·m, the arc 32 is displayed in the upper half of the X-axis of the coordinate graph 30 (first quadrant I and second quadrant II) and is displayed in a first color. Conversely, if the maximum torque value is -1.29 N·m, then the arc 32 will be displayed relative to the lower half of the X-axis of the coordinate graph 30 (third quadrant III and fourth quadrant IV), and will be displayed in a second color. The first color and the second color are different colors, allowing the operator to directly determine the sign of the maximum torque value.

[0114] In other words, when the multiple force distribution diagrams 31 display data points from the first batch of data elements to the twentieth batch of data elements, the maximum torque force value (displayed as the arc length of arc 32) and the maximum axial force value of the multiple data elements in the first batch of data elements to the twentieth batch of data elements will be displayed. And when the multiple force distribution diagrams 31 display data points from the second batch of data elements to the twenty-first batch of data elements, the maximum torque force value (displayed as the arc length of arc 32) and the maximum axial force value of the multiple data elements in the second batch of data elements to the twenty-first batch of data elements will be displayed.

[0115] Please cooperate. Figure 8 As shown, in this embodiment, the knife handle force display method further includes a blade color display step S31-S33. Through the blade color display step S31-S33, the user can clearly observe the force distribution of each blade of the knife 1a. The blade color display step S31-S33 will be described in detail below.

[0116] Step S31: A central reference point P is defined on the coordinate graph 30. A central circle C is defined with the central reference point P as the center and a predetermined radius r. The multiple data points corresponding to the batch data elements are divided into multiple central data points located within the range of the central circle C and multiple peripheral data points located outside the range of the central circle C. Figure 9 As shown, in this embodiment, the central reference point P is the origin (0,0) of the corrected coordinate graph 30. A central circle C is drawn with the central reference point P(0,0) as the center and a predetermined radius r of 0.5 N·m as an example. Data points within the central circle C are central data points, and data points outside the central circle C are peripheral data points. The predetermined radius r is not limited to 0.5 N·m and can be adjusted as needed. Furthermore, in this embodiment, the blade distribution angle is taken as 360 degrees. Based on the X-axis and Y-axis, it is divided into four quadrants: a first quadrant I, a second quadrant II, a third quadrant III, and a fourth quadrant IV. The first quadrant I is defined as 0 degrees to 89 degrees, the second quadrant II as 90 degrees to 179 degrees, the third quadrant III as 180 degrees to 269 degrees, and the fourth quadrant IV as 270 degrees to 359 degrees.

[0117] Step S32: The plurality of peripheral data points are distinguished according to multiple angle ranges, and peripheral data points located in different multiple angle ranges are displayed with different colors, wherein the number of multiple angle ranges is equal to the number of multiple cutting edges of the tool 1a. For example... Figure 10 As shown, in this embodiment, there are 3 blades, each represented by a different color.

[0118] The steps S321 to S324 for generating the multiple angle ranges are as follows: Figures 11 to 13 As shown:

[0119] Step S321: Using the central reference point P as a reference, count the number of peripheral data points located on radial extension lines at multiple different angles. For example... Figure 12 As shown, the processing device 10 counts the number of data points distributed on the radial extension line of the data point of the first batch of data element in the range of 0 degrees to 359 degrees.

[0120] Step S322: Define the angle corresponding to the radial extension line with the most peripheral data points as a cutting edge angle. (From...) Figure 12 It can be seen that the outermost data points are the most numerous at 348 degrees, and 348 degrees is defined as the first cutting edge angle.

[0121] Step S323: Calculate multiple additional cutting edge angles based on the cutting edge angle and the number of cutting edges of the tool 1a. Please cooperate. Figure 12 and Figure 13 In this embodiment, there are three blades, dividing the 360 ​​degrees into three equal parts of 120 degrees each. This means that each blade's area is 120 degrees. Since the first blade angle is 348 degrees and its area is 120 degrees, we can deduce that the second blade angle is 108 degrees and the third blade angle is 228 degrees.

[0122] Step S324: Expand the angles using the blade angle and each of the plurality of other blade angles to generate the plurality of angle ranges, wherein one of the angle ranges covers the blade angle, and the other angle ranges cover each of the other blade angles. For example, using the first blade angle of 348 degrees as a base, expanding by 60 degrees, the first blade area can be calculated to be between 288 degrees and 47 degrees, and so on. Using the second blade angle of 108 degrees as a base, expanding by 60 degrees, the second blade area is located between 48 degrees and 167 degrees. Using the third blade angle of 228 degrees as a base, expanding by 60 degrees, the second blade area is located between 168 degrees and 287 degrees.

[0123] Step S33: Display the plurality of central data points in a different color. The plurality of central data points are displayed in a different color than the plurality of peripheral data points, for example, as shown in... Figure 10 As shown, the multiple central data points are represented by colors different from those of the individual blades.

[0124] The blade color display step can be used to draw the image. Figure 10 The graphic display allows the user to clearly observe the stress on each blade of the tool 1a. When a blade of the tool 1a is damaged, the color-coded blade indicator will show which blade is faulty, enabling real-time repair and maintenance.

[0125] In summary, the advantages of this invention are that the cutting point of the tool handle acting on the workpiece contains a significant amount of information, enabling real-time detection of the force borne by the tool handle during machining. By analyzing the force borne by the tool handle during machining, not only can the workpiece accuracy be improved, but the tool handle condition can also be predicted, thereby ensuring the stability of production efficiency.

[0126] In other embodiments, the circuit board 3 may further include an acceleration sensing module (not shown), which is electrically connected to the controller 4b to sense the acceleration of the handle 1 along three axes (i.e., from the first axis L1 to the third axis L3), and outputs an acceleration sensing signal accordingly. The controller 4b transmits the acceleration sensing signal to the processing device 10 through the wireless transmission module 6 and the antenna 7. The original force data also includes multiple original acceleration values ​​along the three axes. The processing device 10 performs conversion processing on each of the original data sets, and after numerical correction of each of the original acceleration values ​​along the three axes, obtains the corrected acceleration values ​​for the three axes. Each data element of the force data also includes the acceleration values ​​along the three axes, and the acceleration values ​​along the three axes are the corrected acceleration values ​​for each of the three axes. The processing device 10 displays the acceleration values ​​of each of the three axes on the display interface 21. For example, it displays the corresponding three-axis acceleration data points. The force distribution diagram 31 or the three-axis acceleration data points are switched in the first display area R1. Of course, the three-axis acceleration data points can also be displayed in other display areas.

[0127] The above description is only a preferred and feasible embodiment of the present invention. Any equivalent changes made by applying the present invention specification and claims should be included within the patent scope of the present invention.

Claims

1. A method for displaying the force on a knife handle, applied in a monitoring system, the monitoring system comprising a processing device and a display, the processing device being wirelessly connected to a force detection device on a knife handle, the force detection device sensing the force on the knife handle and generating raw force data; the method for displaying the force on a knife handle comprising the following steps: The processing device receives the original force data and converts it into force data. The processing device obtains multiple data elements from the force data, each data element including a first bending moment force value and a second bending moment force value, wherein... The first bending moment force value corresponds to the bending moment force on the handle in a first axis, and the second bending moment force value corresponds to the bending moment force on the handle in a second axis, wherein the first axis is perpendicular to the second axis. The processing device selects a predetermined number of the plurality of data elements from the plurality of data elements to form a batch of data elements; The processing device establishes a coordinate graph on a display interface on the display, the coordinate graph including an X-axis and a Y-axis; The processing device generates an X-axis coordinate value based on the first bending moment force value of each data element in the batch of data elements, and generates a Y-axis coordinate value based on the second bending moment force value of each data element in the batch of data elements. Based on the generated X-axis coordinate value and Y-axis coordinate value, a data point corresponding to each data element is drawn on the coordinate graph until all data points corresponding to all data elements in the batch of data elements are drawn. The drawn data points form a force distribution diagram in the coordinate graph.

2. The method for displaying the force on a knife handle as described in claim 1, wherein the coordinate graph includes a Z-axis, and the force distribution diagram is displayed on the Z-axis; the method for displaying the force on a knife handle further includes repeating the following steps to form a plurality of the force distribution diagrams: The processing device takes another predetermined number of the plurality of data elements to form another batch of data elements; The processing device generates the X-axis coordinate value based on the first bending moment force value of each data element in another batch of data elements, and generates the Y-axis coordinate value based on the second bending moment force value of each data element in another batch of data elements. Based on the generated X-axis coordinate value and Y-axis coordinate value, a data point corresponding to each data element is drawn on the coordinate graph until all data points corresponding to all data elements in the other batch of data elements are drawn. The drawn data points form another force distribution diagram on the Z-axis in the coordinate graph and are adjacent to the previously formed force distribution diagram on the Z-axis.

3. The knife handle force display method as described in claim 2, wherein the plurality of force distribution diagrams are sequentially added to the coordinate graph in the order of their generation, and a predetermined number of displays is set on the Z-axis of the coordinate graph. When the number of the plurality of force distribution diagrams formed exceeds the predetermined number of displays, the force distribution diagram formed earlier is replaced by the force distribution diagram formed later, so that the force distribution diagrams exceeding the predetermined number of displays continue to be displayed on the Z-axis.

4. The method for displaying the force on the knife handle as described in claim 2 or 3, wherein the coordinate graph is displayed on the display interface of the display in a rotatable manner.

5. The method for displaying the force on a knife handle as described in claim 1, wherein the plurality of data elements obtained by the processing device from the force data each have an index value, and the plurality of index values ​​are sequentially increasing; the processing device sequentially retrieves the predetermined number of the plurality of data elements according to the index values ​​of the plurality of data elements to form the batch of data elements.

6. The method for displaying the force on a knife handle as described in claim 1, wherein the processing device establishes a plurality of numerical ranges, each numerical range corresponding to a specific color; the method for displaying the force on a knife handle further includes a force color display step, the force color display step comprising: The processing device calculates the cutting force value for each of the data points, wherein the cutting force value for each data point is CF, the X coordinate value for each data point is x, and the Y coordinate value for each data point is y, which satisfies the following formula: A corresponding color is selected based on the numerical range corresponding to the cutting force value of each data point, and each data point is displayed in the selected color.

7. The method for displaying force on a knife handle as described in claim 1, wherein the knife handle is connected to a knife, and the knife has multiple cutting edges; the method for displaying force on a knife handle includes a cutting edge color display step, the cutting edge color display step comprising: A central reference point is defined on the coordinate graph, and a central circle is defined with the central reference point as the center and a predetermined radius. The multiple data points corresponding to the batch data elements are divided into multiple central data points located within the range of the central circle and multiple peripheral data points located outside the range of the central circle. The plurality of peripheral data points are distinguished according to a plurality of angle ranges, and peripheral data points located in different plurality of angle ranges are displayed in different plurality of colors, wherein the number of the plurality of angle ranges is equal to the number of the plurality of cutting edges of the tool.

8. The method for displaying force on a knife handle as described in claim 7, wherein the plurality of angle ranges are generated by the following steps: The number of peripheral data points located on radial extension lines at multiple different angles is counted based on the central reference point. The angle corresponding to the radial extension line with the most peripheral data points is defined as a cutting edge angle; Calculate multiple additional cutting edge angles based on the cutting edge angle and the number of cutting edges of the tool; The angles are expanded by the blade angle and the plurality of other blade angles to generate the plurality of angle ranges, wherein one of the angle ranges covers the blade angle and the other angle ranges cover each of the other blade angles.

9. The method for displaying the force on the knife handle as described in claim 7, wherein the step of displaying the blade color further includes: The multiple central data points are displayed in a different color.

10. The method for displaying the force on the knife handle as described in claim 1, wherein the original force data includes multiple sets of original data, and each set of original data includes a first original bending moment force value and a second original bending moment force value; After receiving the original stress data, the processing device performs a conversion process on each of the original data sets to obtain the stress data. The stress data includes multiple converted data sets, and each converted data set includes a first corrected bending moment force value and a second corrected bending moment force value. The conversion process includes subtracting a first reference bending moment value from the first original bending moment value of each of the original data groups to obtain the corresponding first corrected bending moment value, and subtracting a second reference bending moment value from the second original bending moment value of each of the original data groups to obtain the corresponding second corrected bending moment value. The first bending moment force value and the second bending moment force value of each of the data elements obtained by the processing device are the first corrected bending moment force value and the second corrected bending moment force value of each of the transformed data groups.

11. The knife handle force display method as described in claim 10, wherein the conversion process involves subtracting the first reference bending moment value from the first original bending moment value and then multiplying it by a first compensation coefficient to obtain the corresponding first corrected bending moment value, and subtracting the second reference bending moment value from the second original bending moment value and then multiplying it by a second compensation coefficient to obtain the corresponding second corrected bending moment value.

12. The knife handle force display method as claimed in claim 1, wherein the original force data includes a plurality of original torque force values ​​around a third axis, the third axis being perpendicular to the first axis and the second axis; Each of the data elements includes a torque value, which corresponds to the torque force exerted on the handle around the third axis; The processing device obtains the torque force value that is the largest in absolute value from the plurality of data elements in the batch data elements and defines it as a maximum torque force value. The maximum torque value is displayed in the coordinate graph as a corresponding arc.

13. The method for displaying the force on a knife handle as described in claim 12, comprising setting a maximum display torque value; the arc has a corresponding central angle, the central angle being α, which satisfies the following formula: in, The maximum torque force value is Tm, and the maximum displayed torque force value is Td.

14. The method for displaying the force on a knife handle as described in claim 12, wherein the original force data includes a plurality of original axial force values ​​along the third axis; each data element includes an axial force value, the axial force value corresponding to the axial force on the knife handle along the third axis; The processing device obtains the axial force value that is the largest in absolute value from the plurality of data elements in the batch data elements and defines it as a maximum axial force value. The coordinate graph includes a Z-axis; The processing device uses the maximum axial force value as a Z-coordinate value of the Z-axis and displays the arc on a plane corresponding to the Z-coordinate value in the coordinate graph.

15. The method for displaying the force on the knife handle as described in claim 2, wherein the original force data includes a plurality of original torque force values ​​around a third axis, the third axis being perpendicular to the first axis and the second axis; Each of the data elements includes a torque force value, the torque force value corresponding to an original torque force value around the third axis; The processing device obtains the torque force value that is the largest in absolute value from the plurality of data elements in the plurality of batch data elements and defines it as a maximum torque force value; The processing device displays the maximum torque force value as a corresponding arc in the coordinate graph.

16. The method for displaying force on a knife handle as described in claim 15, wherein the original force data includes a plurality of original axial force values ​​along the third axis; each data element includes an axial force value, the axial force value corresponding to one of the original axial force values ​​along the third axis. The processing device obtains the axial force value that is the largest in absolute value from the plurality of data elements in the plurality of batch data elements and defines it as a maximum axial force value. The coordinate graph includes a Z-axis; The processing device uses the maximum axial force value as a Z-coordinate value of the Z-axis and displays the arc on a plane corresponding to the Z-coordinate value in the coordinate graph.

17. The knife handle force display method as described in claim 12 or 15, wherein the original force data includes a plurality of original data groups, and each of the original data groups includes an original torque force value; After receiving the original force data, the processing device performs a conversion process on each of the original data sets to obtain the force data. The force data includes multiple converted data sets, and each of the converted data sets includes a corrected torque force value. The conversion process includes subtracting a reference torque value from the original torque value of each of the original data groups to obtain the corresponding corrected torque value. The torque force value of each data element obtained by the processing device is the corrected torque force value of each converted data group.

18. The knife handle force display method as described in claim 17, wherein the conversion process involves subtracting the reference torque value from the original torque value and then multiplying it by a torque compensation coefficient to obtain the corresponding corrected torque value.

19. The method for displaying the force on a knife handle as described in claim 14 or 16, wherein the original force data includes a plurality of original data groups, and each of the original data groups includes an original axial force value; After receiving the original force data, the processing device performs a conversion process on each of the original data sets to obtain the force data. The force data includes multiple converted data sets, and each converted data set includes a corrected axial force value. The conversion process includes subtracting a reference axial force value from the original axial force value of each of the original data groups to obtain the corresponding corrected axial force value. The axial force values ​​of each data element obtained by the processing device are the corrected axial force values ​​of each converted data group.

20. The method for displaying the force on the knife handle as described in claim 19, wherein the conversion process involves subtracting the reference axial force value from the original axial force value and then multiplying it by an axial force compensation coefficient to obtain the corresponding corrected axial force value.

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