Cutting module, machining device and control method of machining device

Abstract

The application relates to a cutting module, a machining device and a control method of the machining device. The cutting module comprises a fixing base connected with a driving member, a tool holder connected with the fixing base in the Z-axis direction, the tool holder is used for mounting a tool head, and a detection component is arranged at the end of the tool holder away from the tool head in the Z-axis direction; a displacement sensor is arranged in the vicinity of the detection component of the cutting module to detect the displacement change of the detection component. The application sets the detection component on the tool holder, sets the displacement sensor on the detection component, detects the displacement change of the detection component by the displacement sensor, accurately obtains the relative position of the tool head and the object to be cut, or obtains the relative position of the tool head and the machining platform, so that the cutting precision is improved, the flatness of the machining platform is leveled, or the thickness of the object to be cut is measured.

Description

Technical Field

[0001] This application relates to the field of processing technology, and in particular to a cutting module, processing equipment, and a control method for the processing equipment. Background Technology

[0002] Currently in the cutting field, the cutting tool of the processing equipment is usually driven to collide with the zero-return surface or zero-return micro switch in a direction away from the processing platform in order to obtain the relative position between the processing platform and the cutting tool, so as to achieve a good cutting effect.

[0003] However, this solution is not intelligent enough, has limited applicability to certain scenarios, and cannot cope with the current diversity of cutting and processing. Summary of the Invention

[0004] To address the aforementioned problems, this application provides a cutting module. By placing a component to be detected on a tool holder and simultaneously installing a displacement sensor on the component, the displacement sensor detects changes in the component's displacement. This allows for accurate acquisition of the relative position of the cutting head and the object to be cut, or the relative position of the cutting head and the processing platform. This improves cutting accuracy, enables leveling of the processing platform, or allows measurement of the thickness of the object to be cut. Furthermore, this application also provides a processing device equipped with this cutting module and a control method for the processing device, specifically including the following solutions:

[0005] In a first aspect, this application provides a cutting module suitable for processing equipment. The cutting module includes:

[0006] A mounting base is used for transmission connection with the driving component;

[0007] The tool holder is slidably connected to the fixed base along the Z-axis. The tool holder is used to mount the tool head, and the end of the tool holder away from the tool head along the Z-axis is provided with the component to be tested.

[0008] The cutting module has a displacement sensor in the vicinity of the component to be tested to detect the displacement change of the component.

[0009] The cutting module provided in this application mounts a cutter head on a tool holder, which is used to cut the object to be cut. The tool holder is slidably connected to a fixed base along the Z-axis. The fixed base is driven by a drive component of the processing equipment, thereby enabling the drive component to drive the fixed base to move the tool holder and change the movement trajectory of the cutter head. Furthermore, a component to be detected is located at the end of the tool holder away from the cutter head along the Z-axis, and a displacement sensor is correspondingly located in the area adjacent to the component to be detected. When the drive component drives the fixed base to move the tool holder along the Z-axis towards the processing platform or the object to be cut, the cutter head contacts the processing platform or the object to be cut. Under the reaction force of the processing platform or the object to be cut, the tool holder and the component to be detected on the tool holder slide relative to the fixed base along the Z-axis. At this time, the displacement sensor can detect the displacement change of the component to be detected, thereby identifying the collision between the cutter head and the object to be cut, and thus obtaining the relative position of the cutter head and the object to be cut, or the relative position of the cutter head and the processing platform. This is beneficial for improving cutting accuracy, or for leveling the flatness of the processing platform, or for measuring the thickness of the object to be cut.

[0010] In one embodiment, the displacement sensor includes: an eddy current sensing unit; a magnetic permeability unit having a magnetic permeability greater than that of air, with the eddy current sensing unit disposed on one side of the magnetic permeability unit; and a magnetization unit disposed on the side of the magnetic permeability unit away from the eddy current sensing unit to magnetize the magnetic permeability unit.

[0011] In this embodiment, an eddy current sensing unit is provided to generate the eddy current effect. The eddy current sensing unit can sense changes in the external magnetic field and convert these changes into changes in electrical signals. By providing a magnetically conductive unit on one side of the eddy current sensing unit, since the permeability of the magnetically conductive unit is greater than that of air, the magnetic field lines of the eddy current sensing unit can be guided by the magnetically conductive unit, making the magnetic field lines relatively concentrated, thereby enhancing the eddy current effect.

[0012] Furthermore, this application increases the magnetic flux of the magnetically conductive unit by setting a magnetization unit on the side of the magnetically conductive unit away from the eddy current sensing unit, and magnetizing the magnetically conductive unit with the magnetization unit, thereby enhancing the magnetic field around the eddy current sensing unit. A strong magnetic field can sense weak external magnetic fields; that is, within a certain range, the stronger the magnetic field, the stronger the sensing ability of the eddy current sensing unit to detect the object under test. Alternatively, it can be understood that an increase in magnetic flux causes a larger change in magnetic flux for the same displacement, thus generating a larger electrical signal. Therefore, when a magnetic or metallic object under test (such as an object under test on a tool holder) approaches the displacement sensor, the strong magnetic field of the eddy current sensing unit can respond quickly, thereby improving the measurement sensitivity of the displacement sensor. Simultaneously, because the eddy current sensing unit's ability to detect the object under test is enhanced, even if the distance between the displacement sensor and the object under test is large, the displacement sensor can obtain a larger signal amplitude, thus widening the measurement range of the displacement sensor. For example, the magnetization unit can make the magnetic permeability unit in a magnetic saturation state. This magnetic saturation state is the stage where the magnetic permeability of the magnetic permeability unit changes drastically when the external magnetic field changes. At this time, the magnetic permeability changes drastically, resulting in a large change in the electrical signal output by the eddy current sensing unit, which can improve the sensitivity of the displacement sensor.

[0013] In one embodiment, the eddy current sensing unit includes a detection coil, the magnetically conductive unit includes a magnetically conductive block having a receiving groove with the opening of the receiving groove facing the component to be detected, and the detection coil unit is received in the receiving groove.

[0014] In this embodiment, a magnetically conductive block is used in the magnetically conductive unit to guide magnetic lines of force, and a detection coil is used in the eddy current sensing unit to sense changes in the magnetic field and convert them into changes in electrical signals. By incorporating a receiving groove in the magnetically conductive block to house the detection coil, the detection coil can be protected from contamination or damage caused by external objects or collisions, thus preventing it from affecting detection. Furthermore, the magnetically conductive block can concentrate the magnetic lines of force around the detection coil, preventing the magnetic field energy of the detection coil from leaking into the air, which is beneficial for improving the detection sensitivity of the displacement sensor.

[0015] In one embodiment, the axial direction of the detection coil is perpendicular to the Z-axis. That is, the axial direction of the detection coil is perpendicular to the length direction of the tool holder, which facilitates fixing the detection coil.

[0016] In one embodiment, the processing equipment further includes a processing platform, which is a metal pad; the displacement sensor further includes a magnetic yoke, which is disposed in the area surrounding the detection coil.

[0017] In this embodiment, since the metal pad is both electrically and magnetically conductive, when the cutting module approaches the metal pad, due to the electromagnetic induction effect, the magnetic field of the detection coil may induce eddy current magnetic fields on the metal pad. These eddy current magnetic fields, in turn, affect the magnetic field of the detection coil, thus affecting the detection results. This application addresses this by placing a magnetic yoke around the detection coil, using the yoke to achieve magnetic shielding of the detection coil, thereby preventing the induction of eddy current magnetic fields on the metal pad and ensuring the detection accuracy of the displacement sensor.

[0018] In one embodiment, the magnetic yoke includes a connecting section and two extension sections, with each end of the connecting section connected to an extension section, and the two extension sections located on opposite sides of the detection coil along its axial direction.

[0019] In this embodiment, the connecting section is used to connect and fix the two extension sections. The two extension sections on both sides of the detection coil in the axial direction can achieve a magnetic shielding effect on the detection coil.

[0020] In one embodiment, the magnetic yoke includes a connecting section and two extension sections, with each end of the connecting section connected to an extension section, and the two extension sections located on both sides of the detection coil in the circumferential direction.

[0021] In this embodiment, the connecting section is used to connect and fix the two extension sections. The two extension sections on both sides of the detection coil in the axial direction can achieve a magnetic shielding effect on the detection coil.

[0022] In one embodiment, an extension is connected to each end of the connecting segment to form a U-shaped or C-shaped magnetic yoke. This simplifies the structure of the magnetic yoke and ensures the magnetic shielding effect of the yoke on the detection coil.

[0023] In one embodiment, the magnetic permeability of the magnetic permeable unit changes drastically when the external magnetic field changes.

[0024] In this embodiment, the permeability of the magnetically conductive unit changes drastically when the external magnetic field changes, meaning the magnetically conductive unit tends to be magnetically saturated or in a magnetically saturated state under the magnetization effect of the magnetization unit. Since the permeability of the magnetically conductive unit in a magnetically saturated state is at its limit, the magnetization intensity of the magnetically conductive unit no longer increases linearly with the magnetic field strength, but enters the nonlinear response region. When the displacement sensor is relatively close to the component to be detected, the component is magnetized, and the feedback magnetic field generated by its own magnetization is superimposed on the original magnetic field of the magnetically conductive unit. Because the magnetically conductive unit is already in a magnetically saturated state, the additional feedback magnetic field causes the permeability of the magnetically conductive unit to decrease sharply, which in turn causes the inductance of the eddy current sensing unit to decrease rapidly, thus significantly increasing the oscillation frequency of the eddy current sensing unit. Therefore, a small displacement change between the displacement sensor and the component to be detected can be converted into a large change in permeability, further converted into a significant frequency change, forming a nonlinear amplification effect to amplify the output signal of the displacement sensor, thereby further improving the measurement sensitivity of the displacement sensor and widening the measurement range.

[0025] In one embodiment, the receiving groove is filled with insulating adhesive, which at least covers the detection coil.

[0026] In this embodiment, by placing insulating glue in the receiving groove and wrapping it around the detection coil, the detection coil can be fixed and also be insulated and protected.

[0027] In one embodiment, the magnetic block and the magnetization unit are stacked; a positioning post is provided in the receiving groove, the positioning post extends along the bottom of the receiving groove to the opening of the receiving groove, and the detection coil is sleeved on the positioning post.

[0028] In this embodiment, by setting a positioning post in the receiving groove, the positioning post can pre-position the detection coil, which is beneficial for the installation of the displacement sensor.

[0029] In one embodiment, the displacement sensor includes a transmission line connected between a detection coil and a processor.

[0030] In this embodiment, using a transmission line to connect the detection coil and the processor facilitates the transmission of the electrical signal from the detection coil to the processor, which can then calculate the distance between the component to be detected and the displacement sensor based on the electrical signal.

[0031] In one embodiment, the magnetic block includes a wiring groove that communicates with a receiving groove, and a transmission line is disposed in the wiring groove.

[0032] In this embodiment, by providing a wiring groove communicating with the receiving slot on the magnetic block, it is beneficial to fix and protect the transmission line, while also reducing the size of the displacement sensor. For example, the wiring groove extends through the width of the magnetic block; providing a wiring groove extending through the magnetic block in that direction helps to shorten the transmission distance of the transmission line and improve transmission efficiency.

[0033] In one embodiment, the wiring channel is provided with filler adhesive, which at least covers the transmission line.

[0034] In this embodiment, by placing filler adhesive in the cable tray and wrapping it around the transmission line, the transmission line can be fixed and protected.

[0035] In one embodiment, the displacement sensor includes a circuit board disposed on the side of the magnetization unit away from the magnetic conduction unit; a detection coil is connected to the circuit board via a transmission line, and the circuit board is connected to the processor.

[0036] In this embodiment, a circuit board is provided to process the electrical signal of the detection coil and transmit it to the processor so that the processor can calculate the distance between the object under test and the displacement sensor.

[0037] In one embodiment, the difference between the distance between the magnetic block and the component to be tested and the distance between the detection coil and the component to be tested is less than the diameter of the detection coil.

[0038] In this embodiment, the difference between the distance between the magnetic block and the component to be tested and the distance between the detection coil and the component to be tested is less than the diameter of the detection coil. This means that the distance between the end face of the detection coil facing the component to be tested and the opening of the receiving groove of the magnetic block is limited to less than the diameter of the detection coil. This prevents the detection coil from being embedded too deeply in the magnetic block, which would result in a large magnetic field distance between the detection coil and the component to be tested, affecting the detection effect. Furthermore, it prevents the detection coil from being exposed outside the magnetic block, thus preventing the magnetic lines of force from leaking into the air and affecting the detection sensitivity.

[0039] In one embodiment, the material of the magnetically conductive unit includes at least one of ferrite, soft magnetic material, hard magnetic material, metallic magnetic material, and powder magnetic material.

[0040] In this embodiment, based on the high magnetic permeability of ferrite, this application utilizes ferrite to fabricate a magnetically conductive unit, which can effectively guide and concentrate magnetic field lines, thereby improving the measurement sensitivity of the displacement sensor provided by this application.

[0041] In one embodiment, the magnetization unit includes a first permanent magnet.

[0042] In this embodiment, based on the fact that the permanent magnet itself has a magnetic field, this application provides a first permanent magnet in the magnetization unit to ensure that the magnetization unit can magnetize the magnetic conductive unit.

[0043] In one embodiment, the magnetization unit includes a first electromagnet.

[0044] In this embodiment, based on the fact that an electromagnet can generate a magnetic field after being energized, and that the magnitude and direction of the magnetic field can be adjusted by changing the magnitude and direction of the current, this embodiment of the application sets a magnetization unit including a first electromagnet to ensure that the magnetization unit can magnetize the magnetic conduction unit. At the same time, the magnetization effect on the magnetic conduction unit can be controlled by adjusting the magnetic field of the magnetization unit.

[0045] In one embodiment, the component to be detected includes at least one of a metal component and a magnetic component. Based on the magnetic properties of the metal and magnetic components, the component to be detected is configured as a metal component and / or a magnetic component. When the displacement sensor moves relative to the component to be detected, the magnetic field around the eddy current sensing unit can magnetize the component to be detected, causing the component to form a feedback magnetic field. This feedback magnetic field can then, in turn, influence the magnetic field of the eddy current sensing unit, thereby achieving displacement detection.

[0046] In one embodiment, the tool holder is columnar, and the component to be tested is annular, with the component fitted onto the tool holder. Setting the component to be tested as an annular shape facilitates fixing the component to the columnar tool holder and also facilitates the assembly of the cutting module.

[0047] In one embodiment, the positioning post and the magnetic block are an integral structure.

[0048] In this embodiment, the positioning post and the magnetic block are integrated into one structure, which simplifies the installation of the displacement sensor and also enables the positioning of the detection coil by the positioning post.

[0049] Secondly, this application provides a processing apparatus, which includes a processing platform and a cutting module provided in any embodiment of the first aspect of this application. The processing platform is used to carry the object to be cut, and the cutting module is used to move toward the processing platform or the processing platform moves toward the cutting module to obtain the relative position of the cutting module and the processing platform in the Z-axis direction; or to obtain the relative position of the cutting module and the object to be cut in the Z-axis direction.

[0050] It is understood that the processing equipment of the second aspect of this application, because it adopts the cutting module provided in the first aspect of this application, also has all the beneficial effects that can be obtained in any embodiment provided in the first aspect of this application.

[0051] Thirdly, this application provides a control method for a processing device, which includes a cutting module and a processing platform. The processing platform is used to support the object to be cut. The cutting module includes a fixed base for transmission connection with a driving component; a tool holder slidably connected to the fixed base along the Z-axis direction, used to mount a cutting head, and a component to be detected is provided at the end of the tool holder away from the cutting head along the Z-axis direction; the cutting module has a displacement sensor corresponding to the area near the component to be detected to detect the displacement change of the component to be detected. The control method for the processing device includes:

[0052] Control the cutting module or processing platform to move in the Z-axis direction;

[0053] During the movement of the cutting module or processing platform, the output signal of the displacement sensor is monitored, and the relative positional relationship between the cutting module and the processing platform in the Z-axis direction is obtained based on the output signal of the displacement sensor; and / or the relative positional relationship between the cutting module and the object to be cut in the Z-axis direction is obtained based on the output signal of the displacement sensor.

[0054] In this embodiment, by controlling the movement of the cutting module or processing platform in the Z-axis direction, monitoring the output signal of the displacement sensor, and obtaining the relative positional relationship between the cutting module and the processing platform in the Z-axis direction, it is beneficial to level the processing platform. Alternatively, obtaining the relative positional relationship between the cutting module and the object to be cut in the Z-axis direction is beneficial to controlling the cutting depth of the object to be cut and improving the cutting accuracy of the cutting module. It also avoids situations where the object to be cut placed by the user differs from the default value, leading to poor cutting results or damage to the cutting head.

[0055] In one embodiment, the relative positional relationship between the cutting module and the processing platform in the Z-axis direction is obtained based on the output signal of the displacement sensor, including:

[0056] If the frequency change of the output signal of the displacement sensor is greater than a preset threshold, it is determined that the cutting module is in contact with the processing platform or the object to be cut.

[0057] In this embodiment, detecting the frequency change of the output signal of the displacement sensor and comparing it with a preset threshold helps to simplify the control logic.

[0058] In one embodiment, the relative positional relationship between the cutting module and the processing platform in the Z-axis direction is obtained based on the output signal of the displacement sensor, including:

[0059] When the frequency change of the output signal of the displacement sensor exceeds a preset threshold, the cutting module or processing platform outputs a zero-return signal.

[0060] In this embodiment, detecting the frequency change of the output signal of the displacement sensor and comparing it with a preset threshold helps to simplify the control logic.

[0061] In one embodiment, determining that the cutting module is in contact with the processing platform or the object to be cut includes:

[0062] Mark the first position when the cutting module comes into contact with the processing platform;

[0063] Mark the second position when the cutting module comes into contact with the object to be cut;

[0064] The thickness of the object to be cut is determined based on the first and second positions.

[0065] In this embodiment, a first position and a second position are marked. By calculating the difference between the first position and the second position, the thickness of the object to be cut can be measured, which helps improve the robustness of the cutting module. This avoids poor cutting results caused by the user placing an object that differs from the default value.

[0066] In one embodiment, the displacement sensor includes: an eddy current sensing unit; a magnetic permeability unit having a magnetic permeability greater than that of air, with the eddy current sensing unit disposed on one side of the magnetic permeability unit; and a magnetization unit disposed on the side of the magnetic permeability unit away from the eddy current sensing unit to magnetize the magnetic permeability unit.

[0067] In one embodiment, the eddy current sensing unit includes a detection coil, the magnetically conductive unit includes a magnetically conductive block having a receiving groove with the opening of the receiving groove facing the component to be detected, and the detection coil unit is received in the receiving groove.

[0068] In one embodiment, the axial direction of the detection coil is perpendicular to the Z-axis.

[0069] In one embodiment, the processing equipment further includes a processing platform, which is a metal pad; the displacement sensor further includes a magnetic yoke, which is disposed in the area surrounding the detection coil.

[0070] In one embodiment, the magnetic yoke includes a connecting section and two extension sections, with each end of the connecting section connected to an extension section, and the two extension sections located on opposite sides of the detection coil along its axial direction.

[0071] In one embodiment, the magnetic yoke includes a connecting section and two extension sections, with each end of the connecting section connected to an extension section, and the two extension sections located on both sides of the detection coil in the circumferential direction.

[0072] In one embodiment, an extension is connected to each end of the connecting segment to form a U-shaped or C-shaped magnetic yoke.

[0073] In one embodiment, the magnetic block and the magnetization unit are stacked; a positioning post is provided in the receiving groove, the positioning post extends along the bottom of the receiving groove to the opening of the receiving groove, and the detection coil is sleeved on the positioning post.

[0074] In one embodiment, the difference between the distance between the magnetic block and the component to be tested and the distance between the detection coil and the component to be tested is less than the diameter of the detection coil.

[0075] In one embodiment, the component to be detected includes at least one of a metal component and a magnetic component.

[0076] In one embodiment, the frame is columnar, and the metal and magnetic components are ring-shaped.

[0077] In one embodiment, the processing equipment includes a cutting module and a processing platform. The processing platform is used to carry the object to be cut. The cutting module includes a fixed base for transmission connection with a drive component; a tool holder slidably connected to the fixed base along the Z-axis direction, the tool holder for mounting a tool head, and a component to be detected is provided at the end of the tool holder away from the tool head along the Z-axis direction; the cutting module is provided with a displacement sensor in the vicinity of the component to be detected to detect displacement changes of the component to be detected; the processing also includes a processor for executing the control method of the processing equipment provided in any of the embodiments of the second aspect above. Attached Figure Description

[0078] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0079] Figure 1 This is a schematic diagram of the structure of the processing equipment provided in one embodiment of this application;

[0080] Figure 2 This is a schematic diagram of the cutting module provided in one embodiment of this application;

[0081] Figure 3 This is a partial structural schematic diagram of the cutting module provided in one embodiment of this application;

[0082] Figure 4 This is a partial cross-sectional structural diagram of the cutting module provided in one embodiment of this application;

[0083] Figure 5 This is a partial cross-sectional structural diagram of the cutting module provided in another embodiment of this application;

[0084] Figure 6 This is a schematic diagram of the displacement sensor provided in one embodiment of this application, viewed from one side.

[0085] Figure 7 This is a schematic diagram of the displacement sensor provided in one embodiment of this application from another side view.

[0086] Figure 8 This is a graph showing the relationship between the magnetic permeability and the magnetic field strength of a magnetically conductive unit provided in one embodiment of this application.

[0087] Figure 9 This is a schematic diagram of the structure of a displacement sensor provided in one embodiment of this application;

[0088] Figure 10 This is a flowchart illustrating the control method for the processing equipment provided in one embodiment of this application;

[0089] Figure 11 This is a flowchart illustrating the control method for the processing equipment provided in the second embodiment of this application;

[0090] Figure 12 This is a flowchart illustrating the control method for the processing equipment provided in the third embodiment of this application;

[0091] Figure 13 This is a flowchart illustrating the control method for the processing equipment provided in the fourth embodiment of this application.

[0092] Reference numerals: 200-Processing equipment; 201-Guide component; 202-Tool head; 203-Processing platform; 204-Processor; 100-Cutting module; 10-Fixing base; 20-Tool holder; 21-Component to be tested; 30-Tool head; 40-Displacement sensor; 41-Eddy current sensing unit; 411-Detection coil; 42-Magnetic guiding unit; 421-Magnetic guiding block; 422-Receiving groove; 423-Positioning post; 424-Wire routing groove; 50-Magneticization unit; 60-Magnetic yoke; 61-Connecting section; 62-Extension section; 001-X-axis direction; 002-Y-axis direction; 003-Z-axis direction. Detailed Implementation

[0093] To facilitate understanding of this application, a more comprehensive description of this application will be provided below with reference to the accompanying drawings.

[0094] The following descriptions of the embodiments are based on the accompanying illustrations and are used to illustrate specific embodiments in which this application can be implemented. The component designations used herein, such as "first," "second," etc., are merely for distinguishing the described objects and do not have any sequential or technical meaning. Unless otherwise specified, the terms "connection" and "linkage" used in this application include both direct and indirect connections (linkages). Directional terms used in this application, such as "up," "down," "front," "rear," "left," "right," "inner," "outer," "side," etc., are merely for reference to the accompanying drawings. Therefore, the use of directional terms is for better and clearer explanation and understanding of this application, and does not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application.

[0095] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising," "may include," "include," or "may include" used in this application indicate the presence of the corresponding disclosed function, operation, element, etc., and do not limit one or more other functions, operations, elements, etc. Moreover, the terms "comprising" or "include" indicate the presence of the corresponding features, number, steps, operations, elements, components, or combinations thereof disclosed in the specification, but do not exclude the presence or addition of one or more other features, number, steps, operations, elements, components, or combinations thereof, and are intended to cover non-exclusive inclusion.

[0096] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0097] Please refer to the above. Figure 1 , Figure 1 This is a schematic diagram of the structure of the processing equipment 200 provided in one embodiment of this application.

[0098] like Figure 1As shown, the processing equipment 200 provided in this application includes a guide member 201, a tool head 202, and a processing platform 203. In some embodiments, the processing equipment 200 is a gantry structure, and the guide member 201 may be supported by two Z-axis vertical columns and disposed above the processing platform 203. The processing platform 203 is used to carry the object to be cut. The guide member 201 is used to support the tool head 202 of the processing equipment 200. The tool head 202 is slidably connected to the guide member 201. When working, the tool head 202 can slide linearly along the extension direction Y-axis 002 of the guide member 201 or slide in the YZ plane via a belt. The guide member 201 can move relative to the processing platform 203 along the Z-axis 003, so that the tool head 202 moves with the guide member 201 relative to the processing platform 203 along the Z-axis 003. The processing platform 203 can move relative to the tool head 202 along the X-axis 001, thereby allowing the tool head 202 to move relative to the processing platform 203 in three-dimensional space.

[0099] In one embodiment, the tool head 202 is provided with a cutting module 100, which moves in three-dimensional space relative to the processing platform 203, so that the cutting module 100 of the processing equipment 200 can automatically cut the object to be cut supported on the processing platform 203. In another embodiment, the tool head 202 is the cutting module 100.

[0100] Figure 1 The processing equipment 200 shown should be understood as an example. The processing equipment 200, including the cutting module 100 provided in this application, can also have other structures, such as a corexy structure or a cantilever structure. It is foreseeable that processing equipment 200 with other structures can also achieve the effects in this application, which will not be elaborated here. That is, this application does not limit the structure of the processing equipment 200.

[0101] Please refer to the above. Figures 2 to 4 ,in Figure 2 This is a schematic diagram of the structure of the cutting module 100 provided in one embodiment of this application; Figure 3 This is a partial structural schematic diagram of the cutting module 100 provided in one embodiment of this application; Figure 4 This is a partial cross-sectional structural diagram of the cutting module 100 provided in one embodiment of this application.

[0102] like Figures 2 to 4As shown, in one embodiment, the cutting module 100 provided in this application includes a fixed base 10, a tool holder 20, a cutting head 30, and a displacement sensor 40. The fixed base 10 is used for transmission connection with a driving component. The tool holder 20 is slidably connected to the fixed base 10 along the Z-axis direction 003, and the tool holder 20 is used to mount the cutting head 30, which is located on the side of the tool holder 20 facing the processing platform 203. A component to be detected 21 is provided at the end of the tool holder 20 away from the cutting head 30 along the Z-axis direction 003. The cutting module 100 provides a displacement sensor 40 in the vicinity of the component to be detected 21. Exemplarily, the displacement sensor 40 can be fixed to the fixed base 10 and positioned facing the tool holder 20. The displacement sensor 40 is used to detect the displacement change of the component to be detected 21.

[0103] The cutting module 100 provided in this application mounts a cutter head 30 via a tool holder 20, wherein the cutter head 30 is used to cut the object to be cut. The tool holder 20 is slidably connected to a fixed base 10 along the Z-axis direction 003. The fixed base 10 is drive-connected to a drive component of the processing equipment 200, thereby enabling the drive component to drive the fixed base 10 to move the tool holder 20 to change the movement trajectory of the cutter head 30. Furthermore, a detection component 21 is provided at the end of the tool holder 20 away from the cutter head 30 along the Z-axis direction 003, and a displacement sensor 40 is correspondingly provided in the area adjacent to the detection component 21. When the drive component drives the fixed base 10 to move the tool holder 20 along the Z-axis direction 003 toward the processing platform 203 or the object to be cut, the cutter head 30 touches the processing platform 203 or the object to be cut. Under the reaction force of the processing platform 203 or the object to be cut, the tool holder 20 and the component 21 to be detected on the tool holder 20 slide relative to the fixed seat 10 along the Z-axis direction 003. At this time, the displacement sensor 40 can detect the displacement change of the component 21 to be detected, thereby identifying the collision between the cutter head 30 and the object to be cut, and thus obtaining the relative position between the cutter head 30 and the object to be cut. Alternatively, if no object to be cut is placed on the processing platform 203, the displacement sensor 40 can detect the displacement change of the component 21 to be detected, thereby identifying the collision between the cutter head 30 and the processing platform 203, and thus obtaining the relative position between the cutter head 30 and the processing platform 203. This is beneficial for improving cutting accuracy or for leveling the flatness of the processing platform 203 or for measuring the thickness of the object to be cut.

[0104] Please refer to the above. Figure 5 , Figure 5 This is a partial cross-sectional structural diagram of the cutting module 100 provided in another embodiment of this application.

[0105] like Figure 5As shown, in one embodiment, the processing equipment 200 provided in this application further includes a processor 204, which is communicatively or electrically connected to the displacement sensor 40. The processor 204 receives the output signal from the displacement sensor 40 and determines the relative positional relationship between the cutting module 100 and the object to be cut or the processing platform 203 based on the output signal from the displacement sensor 40. The processor 204 is also used to calculate the offset of the current cutting module 100 relative to the object to be cut or the processing platform 203 relative to a preset position, and transmits a drive signal to the drive unit so that the drive unit can drive the cutting module 100 to move the tool holder 20 for compensation.

[0106] In one embodiment, the processor 204 is also used to control the movement of the drive unit or the machining platform 203.

[0107] In one embodiment, the displacement sensor 40 is fixed to the mounting base 10, and the displacement sensor 40 is used to detect the displacement of the component 21 to be detected on the tool holder 20 relative to the mounting base 10 along the Z-axis direction 003. It should be noted that the position of the displacement sensor 40 includes, but is not limited to, being fixed to the mounting base 10, and this application does not make any special limitation in this regard.

[0108] Please refer to the above. Figure 6 and Figure 7 ,in Figure 6 This is a schematic diagram of the structure of a displacement sensor 40 provided in one embodiment of this application, viewed from one side. Figure 7 This is a structural schematic diagram of the displacement sensor 40 provided in one embodiment of this application from another side view.

[0109] like Figure 6 and Figure 7 As shown, in one embodiment, the displacement sensor 40 includes an eddy current sensing unit 41, a magnetically conductive unit 42, and a magnetization unit 50. The eddy current sensing unit 41 is connected to the processor 204 of the processing equipment 200. The eddy current sensing unit 41 is located on one side of the magnetically conductive unit 42. The eddy current sensing unit 41 is used to generate eddy current effects and can sense changes in the external magnetic field, converting these changes into changes in electrical signals.

[0110] The magnetically conductive unit 42 is magnetically conductive, and its permeability is greater than that of air. The magnetically conductive unit 42 guides the magnetic field lines of the eddy current sensing unit 41, making the magnetic field lines relatively concentrated to enhance the eddy current effect. The magnetization unit 50 is located on the side of the magnetically conductive unit 42 away from the eddy current sensing unit 41. The magnetization unit 50 has a magnetic field, which is used to magnetize the magnetically conductive unit 42 and increase its magnetic flux.

[0111] By magnetizing the magnetic permeable unit 42 with the magnetization unit 50, the magnetic flux of the magnetic permeable unit 42 can be increased, thereby enhancing the magnetic field around the eddy current sensing unit 41. A strong magnetic field can sense weak external magnetic fields; that is, within a certain range, the stronger the magnetic field strength, the stronger the sensing ability of the eddy current sensing unit 41 to sense the object under test. Alternatively, it can be understood that an increase in magnetic flux allows the same displacement change to cause a larger change in magnetic flux, thereby generating a larger electrical signal. Thus, when a magnetic or metallic object under test (such as the component 21 to be detected on the tool holder 20) approaches the displacement sensor 40, the strong magnetic field of the eddy current sensing unit 41 can respond quickly, thereby improving the measurement sensitivity of the displacement sensor 40 provided in this application. The component 21 to be detected can be metal, or it can be metal with magnetism. At the same time, because the sensing ability of the eddy current sensing unit 41 to sense the component 21 is enhanced, even if the distance between the displacement sensor 40 and the component under test is far, the displacement sensor 40 can still obtain a larger signal amplitude, thereby expanding the measurement range of the displacement sensor 40 provided in this application.

[0112] In one embodiment, the eddy current sensing unit 41 includes a detection coil 411 for electrical connection with the processor 204. The magnetic guiding unit 42 includes a magnetic block 421, and the magnetization unit 50 is used to magnetize the magnetic block 421. The magnetic block 421 has a receiving groove 422, the opening of which faces the component 21 to be detected, and the detection coil 411 is received within the receiving groove 422.

[0113] In this embodiment, a magnetically conductive block 421 is provided in the magnetically conductive unit 42 to guide magnetic lines of force, and a detection coil 411 is provided in the eddy current sensing unit 41 to sense changes in the magnetic field and convert them into changes in electrical signals. By providing a receiving groove 422 in the magnetically conductive block 421 to house the detection coil 411, it is possible to prevent the detection coil 411 from being easily contaminated or damaged by external foreign objects or collisions, thus affecting detection. On the other hand, the magnetically conductive block 421 can concentrate the magnetic lines of force around the detection coil 411, preventing the magnetic field energy of the detection coil 411 from leaking into the air, which is beneficial to improving the detection sensitivity of the displacement sensor 40.

[0114] In one embodiment, the axial direction of the detection coil 411 is perpendicular to the Z-axis direction 003.

[0115] Please refer to the above. Figure 8 , Figure 8 This is a graph showing the relationship between the magnetic permeability and the magnetic field strength of the magnetic conductive unit 42 provided in one embodiment of this application.

[0116] like Figure 8As shown, the horizontal axis represents the magnetic field strength around the magnetically conductive unit 42, and the vertical axis represents the permeability of the magnetically conductive unit 42. In one embodiment, the magnetically conductive unit 42 is in a stage where its permeability changes rapidly when the external magnetic field changes. Alternatively, it can be understood that the initial state of the magnetically conductive unit 42 is approaching magnetic saturation or is in a state of magnetic saturation. That is, the initial state of the magnetically conductive unit 42 is... Figure 8 Point A in the diagram.

[0117] In this embodiment, the permeability of the magnetic permeable unit 42 changes drastically when the external magnetic field changes, meaning that the magnetic permeable unit 42 tends to be magnetically saturated or in a magnetically saturated state under the magnetization effect of the magnetization unit 50. Since the permeability of the magnetic permeable unit 42 in a magnetically saturated state is at its limit, the magnetization intensity of the magnetic permeable unit 42 no longer increases linearly with the magnetic field strength, but enters the nonlinear response region. When the displacement sensor 40 is relatively close to the object to be measured, the object is magnetized, and the feedback magnetic field generated by its own magnetization is superimposed on the original magnetic field of the magnetic permeable unit 42. Because the magnetic permeable unit 42 is already in a magnetically saturated state, the additional feedback magnetic field causes the permeability of the magnetic permeable unit 42 to decrease sharply, thereby causing the inductance of the eddy current sensing unit 41 to decrease rapidly, thus significantly increasing the oscillation frequency of the eddy current sensing unit 41. Therefore, a small displacement change between the displacement sensor 40 and the object to be measured can be converted into a large change in magnetic permeability, and further into a significant frequency change, forming a nonlinear amplification effect to amplify the output signal of the displacement sensor 40, thereby further improving the measurement sensitivity of the displacement sensor 40 provided in this application and expanding the measurement range.

[0118] In one embodiment, the processing equipment 200 further includes a processing platform 203, which is a metal pad.

[0119] Please refer to the above. Figure 9 , Figure 9 This is a schematic diagram of the structure of the displacement sensor 40 provided in one embodiment of this application.

[0120] like Figure 9 As shown, the displacement sensor 40 also includes a magnetic yoke 60, which is disposed in the area surrounding the detection coil 411. In this embodiment, since the metal pad is conductive and magnetic, when the cutting module 100 approaches the metal pad, due to the electromagnetic induction effect, the magnetic field of the detection coil 411 may induce eddy current magnetic fields on the metal pad. These eddy current magnetic fields will, in turn, affect the magnetic field of the detection coil 411, thereby affecting the detection result. This application provides magnetic shielding for the detection coil 411 by setting a magnetic yoke 60 around it, thus preventing the induction of eddy current magnetic fields on the metal pad and ensuring the detection accuracy of the displacement sensor 40.

[0121] In one embodiment, the magnetic yoke 60 includes a connecting section 61 and two extension sections 62, with each end of the connecting section 61 connected to an extension section 62, and the two extension sections 62 located on both sides of the detection coil 411 along its axial direction.

[0122] In this embodiment, the connecting section 61 is used to connect and fix the two extension sections 62. The two extension sections 62 on both sides of the detection coil 411 can achieve a magnetic shielding effect on the detection coil 411.

[0123] In one embodiment, the magnetic yoke 60 includes a connecting section 61 and two extension sections 62, with each end of the connecting section 61 connected to an extension section 62, and the two extension sections 62 located on both sides of the detection coil 411 in the circumferential direction.

[0124] In this embodiment, the connecting section 61 is used to connect and fix the two extension sections 62. The two extension sections 62 on both sides of the detection coil 411 can achieve a magnetic shielding effect on the detection coil 411.

[0125] In one embodiment, an extension segment 62 is connected to each end of the connecting segment 61 to form a U-shaped or C-shaped magnetic yoke 60. This simplifies the structure of the magnetic yoke 60 and ensures the magnetic shielding effect of the magnetic yoke 60 on the detection coil 411.

[0126] In one embodiment, the receiving groove 422 is filled with insulating adhesive (not shown), which at least covers the detection coil 411.

[0127] In this embodiment, by providing insulating adhesive in the receiving groove 422 and wrapping it around the detection coil 411, the detection coil 411 can be fixed while also being insulated and protected.

[0128] In one embodiment, the magnetic block 421 and the magnetization unit 50 are stacked. A positioning post 423 is provided in the receiving groove 422, and the positioning post 423 extends along the bottom of the receiving groove 422 toward the opening of the groove, that is, the positioning post extends along the direction perpendicular to the Z-axis 003. The detection coil 411 is sleeved on the positioning post 423, that is, the positioning post 423 is used to insert the inner ring of the detection coil 411.

[0129] In this embodiment, by providing a positioning post 423 in the receiving groove 422, the positioning post 423 can pre-position the detection coil 411, which is beneficial for the installation of the displacement sensor 40.

[0130] In one embodiment, the inner wall of the receiving groove 422 is annular. The annular inner wall of the receiving groove 422 fits the outer contour of the detection coil 411, thereby making the gap between the detection coil 411 and the inner wall of the receiving groove 422 smaller. This allows more magnetic lines of force of the detection coil 411 to pass through the magnetic guide block 421, preventing magnetic lines of force from leaking into the air, thereby improving the detection sensitivity of the displacement sensor 40.

[0131] In one embodiment, the displacement sensor 40 includes a transmission line (not shown) connected between the detection coil 411 and the processor 204. Connecting the detection coil 411 and the processor 204 via the transmission line facilitates the transmission of electrical signals from the detection coil 411 to the processor 204, enabling the processor 204 to calculate the distance between the object under test and the displacement sensor 40 based on these electrical signals.

[0132] In one embodiment, the magnetic block 421 includes a wiring groove 424 extending through the width of the magnetic block 421. The wiring groove 424 is connected to the receiving groove 422, and the transmission line is disposed in the wiring groove 424.

[0133] In this embodiment, by providing a wiring groove 424 communicating with the receiving groove 422 in the magnetic block 421, it is beneficial to fix and protect the transmission line, while also reducing the size of the displacement sensor 40. The wiring groove 424 extending through the magnetic block 421 helps to shorten the transmission distance of the transmission line and improve transmission efficiency.

[0134] In one embodiment, a filler adhesive (not shown) is provided inside the cable tray 424, and the filler adhesive at least covers the transmission line. By providing filler adhesive inside the cable tray 424 and covering the transmission line, the transmission line can be fixed and protected.

[0135] In one embodiment, the displacement sensor 40 includes a circuit board located on the side of the magnetization unit 50 away from the magnetic conduction unit 42; the detection coil 411 is connected to the circuit board via a transmission line, and the circuit board is connected to the processor 204.

[0136] In this embodiment, a circuit board is provided to process the electrical signal of the detection coil 411 and transmit it to the processor 204 so that the processor 204 can calculate the distance between the object to be measured and the displacement sensor 40.

[0137] In one embodiment, the difference between the distance between the magnetic block 421 and the component 21 to be tested and the distance between the detection coil 411 and the component 21 to be tested is less than the diameter of the detection coil 411.

[0138] In this embodiment, the difference between the distance between the magnetic block 421 and the component 21 to be detected and the distance between the detection coil 411 and the component 21 to be detected is less than the diameter of the detection coil 411. This means that the distance between the end face of the detection coil 411 facing the component 21 and the opening of the receiving groove 422 of the magnetic block 421 is limited to less than the diameter of the detection coil 411. This avoids the detection coil 411 being embedded too deeply in the magnetic block 421, which would cause the magnetic fields between the detection coil 411 and the component 21 to be too far apart, affecting the detection effect. Furthermore, it prevents the detection coil 411 from being exposed outside the magnetic block 421, thus preventing the magnetic lines of force from leaking into the air and affecting the detection sensitivity.

[0139] In one embodiment, the material of the magnetically conductive unit 42 includes at least one of ferrite, soft magnetic material, hard magnetic material, metallic magnetic material, and powder magnetic material.

[0140] In this embodiment, based on the high permeability of ferrite, the magnetic conductive unit 42 is fabricated using ferrite. The magnetic conductive unit 42 can effectively guide and concentrate magnetic lines of force, thereby improving the measurement sensitivity of the displacement sensor 40 provided by this application.

[0141] In one embodiment, the magnetization unit 50 includes a first permanent magnet.

[0142] In this embodiment, based on the fact that the permanent magnet itself has a magnetic field, this application provides a first permanent magnet in the magnetization unit 50 to ensure that the magnetization unit 50 can magnetize the magnetic conduction unit 42.

[0143] In one embodiment, the magnetization unit 50 includes a first electromagnet.

[0144] In this embodiment, based on the fact that an electromagnet can generate a magnetic field after being energized, and that the magnitude and direction of the magnetic field can be adjusted by changing the magnitude and direction of the current, this embodiment of the application sets the magnetization unit 50 to include a first electromagnet to ensure that the magnetization unit 50 can magnetize the magnetic conduction unit 42. At the same time, the magnetization effect on the magnetic conduction unit 42 can be controlled by adjusting the magnetic field of the magnetization unit 50.

[0145] In one embodiment, the component to be detected 21 includes at least one of a metal component and a magnetic component. Based on the magnetic properties of the metal and magnetic components, the component to be detected 21 is configured as a metal component and / or a magnetic component. When the displacement sensor 40 moves relative to the component to be detected 21, the magnetic field around the eddy current sensing unit 41 can magnetize the component to be detected 21, causing the component to be detected 21 to form a feedback magnetic field. This feedback magnetic field of the component to be detected 21 can, in turn, influence the magnetic field of the eddy current sensing unit 41, thereby achieving displacement detection.

[0146] In one embodiment, the tool holder 20 is columnar, and the component to be tested 21 is annular, with the component to be tested 21 sleeved on the tool holder 20. Setting the component to be tested 21 as annular facilitates fixing the component to be tested 21 on the columnar tool holder 20 and facilitates the assembly of the cutting module 100.

[0147] In one embodiment, the positioning post and the magnetic block 421 are an integral structure.

[0148] In this embodiment, the positioning post and the magnetic block 421 are integrated into one structure, which simplifies the installation of the displacement sensor 40 and also enables the positioning of the detection coil 411 by using the positioning post.

[0149] Please refer to the above. Figure 10 , Figure 10 This is a flowchart illustrating the control method of the processing equipment 200 provided in one embodiment of this application.

[0150] like Figure 10 As shown, in one embodiment, the control method for the processing equipment 200 provided in this application includes:

[0151] S100, control the cutting module 100 or the processing platform 203 to move in the Z-axis direction 003;

[0152] S200: During the movement of the cutting module 100 or the processing platform 203, the output signal of the displacement sensor 40 is monitored, and the relative positional relationship between the cutting module 100 and the processing platform 203 in the Z-axis direction 003 is obtained based on the output signal of the displacement sensor 40; and / or the relative positional relationship between the cutting module 100 and the object to be cut in the Z-axis direction 003 is obtained based on the output signal of the displacement sensor 40.

[0153] Please refer to the above. Figure 11 , Figure 11 This is a flowchart illustrating the control method of the processing equipment 200 provided in the second embodiment of this application.

[0154] like Figure 11 As shown, step S200, "obtaining the relative positional relationship between the cutting module 100 and the processing platform 203 in the Z-axis direction 003 based on the output signal of the displacement sensor 40; and / or obtaining the relative positional relationship between the cutting module 100 and the object to be cut in the Z-axis direction 003 based on the output signal of the displacement sensor 40," may include the following methods:

[0155] S300a. When the frequency change of the output signal of the displacement sensor 40 is greater than a preset threshold, it is determined that the cutting module 100 is in contact with the processing platform 203 or the object to be cut.

[0156] Please cooperate. Figure 12 , Figure 12 This is a flowchart illustrating the control method of the processing equipment 200 provided in the third embodiment of this application.

[0157] like Figure 12 As shown, step S200, "obtaining the relative positional relationship between the cutting module 100 and the processing platform 203 in the Z-axis direction 003 based on the output signal of the displacement sensor 40; and / or obtaining the relative positional relationship between the cutting module 100 and the object to be cut in the Z-axis direction 003 based on the output signal of the displacement sensor 40," may include the following methods:

[0158] S300b: When the frequency change of the output signal of the displacement sensor 40 is greater than a preset threshold, the cutting module 100 or the processing platform 203 outputs a zero-return signal.

[0159] Specifically, if the cutting module 100 moves in the Z-axis direction 003, with the coordinates of the processing platform 203 as the reference zero point, it is considered that the cutting module 100 has achieved zeroing. Similarly, if the processing platform 203 moves in the Z-axis direction 003, with the coordinates of the cutting module 100 as the reference zero point, it is considered that the processing platform 203 has achieved zeroing.

[0160] Please refer to the above. Figure 13 , Figure 13 This is a flowchart illustrating the control method of the processing equipment 200 provided in the fourth embodiment of this application.

[0161] like Figure 13 As shown, in one embodiment, after step S300a: "when the frequency change of the output signal of the displacement sensor 40 is greater than a preset threshold, it is determined that the cutting module 100 is in contact with the processing platform 203 or the object to be cut", the method of this application may further include:

[0162] S400: When the cutting module 100 contacts the processing platform 203, mark the first position;

[0163] S500: When the cutting module 100 contacts the object to be cut, mark the second position;

[0164] S600: Determine the thickness of the object to be cut based on the first and second positions.

[0165] In this embodiment, a first position and a second position are marked. By calculating the difference between the first position and the second position, the thickness of the object to be cut can be measured, which helps to improve the robustness of the cutting module 100. That is, it can avoid poor cutting results caused by the user placing an object to be cut that is different from the default value.

[0166] It should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0167] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0168] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims. Those skilled in the art will understand that implementing all or part of the processes of the above embodiments, and making equivalent changes according to the claims of this application, still falls within the scope of this application.

Claims

1. A cutting module, characterized in that, The cutting module is suitable for processing equipment, and the cutting module includes: A mounting base is used for transmission connection with the driving component; The tool holder is slidably connected to the fixed base along the Z-axis direction. The tool holder is used to install the tool head, and the end of the tool holder away from the tool head along the Z-axis direction is provided with a component to be tested. The cutting module is equipped with a displacement sensor in the vicinity of the component to be detected, so as to detect the displacement change of the component to be detected. The displacement sensor includes an eddy current sensing unit and a magnetic yoke. The eddy current sensing unit includes a detection coil. The magnetic yoke is disposed in the area surrounding the detection coil. The magnetic yoke includes a connecting section and two extension sections. Each end of the connecting section is connected to one of the extension sections. The two extension sections are located on either side of the detection coil in the axial direction or on either side of the detection coil in the circumferential direction.

2. The cutting module according to claim 1, characterized in that, The displacement sensor includes: A magnetic permeable unit, wherein the magnetic permeability of the magnetic permeable unit is greater than that of air, and the eddy current sensing unit is disposed on one side of the magnetic permeable unit; A magnetization unit is disposed on the side of the magnetically conductive unit away from the eddy current sensing unit, so as to magnetize the magnetically conductive unit.

3. The cutting module according to claim 2, characterized in that, The magnetically conductive unit includes a magnetically conductive block with a receiving groove. The opening of the receiving groove faces the component to be tested, and the detection coil unit is housed within the receiving groove.

4. The cutting module according to claim 3, characterized in that, The axial direction of the detection coil is perpendicular to the Z-axis.

5. The cutting module according to claim 3, characterized in that, The processing equipment also includes a processing platform, which is a metal pad.

6. The cutting module according to claim 5, characterized in that, The two ends of the connecting segment are respectively connected to an extension segment to form a U-shaped or C-shaped magnetic yoke.

7. The cutting module according to claim 3, characterized in that, The magnetic conductive block and the magnetization unit are stacked; The receiving groove is provided with a positioning post, which extends along the bottom of the receiving groove to the opening of the receiving groove, and the detection coil is sleeved on the positioning post.

8. The cutting module according to claim 3, characterized in that, The difference between the distance between the magnetic block and the component to be tested and the distance between the detection coil and the component to be tested is less than the diameter of the detection coil.

9. The cutting module according to any one of claims 1-5, characterized in that, The component to be tested includes at least one of a metal component and a magnetic component.

10. The cutting module according to claim 9, characterized in that, The tool holder is columnar, the component to be tested is annular, and the component to be tested is sleeved on the tool holder.

11. A processing equipment, characterized in that, The device includes a processing platform and a cutting module as described in any one of claims 1-10, wherein the processing platform is used to carry an object to be cut, and the cutting module is used to move toward the processing platform or the processing platform moves toward the cutting module to obtain the relative position of the cutting module and the processing platform in the Z-axis direction; or to obtain the relative position of the cutting module and the object to be cut in the Z-axis direction.

12. A control method for a processing equipment, the processing equipment comprising a processing platform and a cutting module as described in any one of claims 1-10, wherein the processing platform is used to support an object to be cut, the cutting module comprising a fixed base for transmission connection with a driving component; a tool holder slidably connected to the fixed base along the Z-axis direction, the tool holder being used to mount a cutting head, and a component to be detected is provided at one end of the tool holder away from the cutting head along the Z-axis direction; the cutting module is provided with a displacement sensor in the vicinity of the component to be detected to detect displacement changes of the component to be detected, characterized in that... The method includes: Control the cutting module or the processing platform to move in the Z-axis direction; During the movement of the cutting module or the processing platform, the output signal of the displacement sensor is monitored, and the relative positional relationship between the cutting module and the processing platform in the Z-axis direction is obtained based on the output signal of the displacement sensor; and / or the relative positional relationship between the cutting module and the object to be cut in the Z-axis direction is obtained based on the output signal of the displacement sensor.

13. The control method for the processing equipment according to claim 12, characterized in that, The process of obtaining the relative positional relationship between the cutting module and the processing platform in the Z-axis direction based on the output signal of the displacement sensor includes: If the frequency change of the output signal of the displacement sensor is greater than a preset threshold, it is determined that the cutting module is in contact with the processing platform or the object to be cut.

14. The control method for the processing equipment according to claim 12, characterized in that, The process of obtaining the relative positional relationship between the cutting module and the processing platform in the Z-axis direction based on the output signal of the displacement sensor includes: When the frequency change of the output signal of the displacement sensor is greater than a preset threshold, the cutting module or the processing platform outputs a zero-return signal.

15. The control method for the processing equipment according to claim 13, characterized in that, The step of determining that the cutting module is in contact with the processing platform or the object to be cut includes: When the cutting module comes into contact with the processing platform, mark the first position; When the cutting module comes into contact with the object to be cut, mark the second position; The thickness of the object to be cut is determined based on the first position and the second position.

16. The control method for the processing equipment according to claim 12, characterized in that, The displacement sensor includes: Eddy current sensing unit; A magnetic permeable unit, wherein the magnetic permeability of the magnetic permeable unit is greater than that of air, and the eddy current sensing unit is disposed on one side of the magnetic permeable unit; A magnetization unit is disposed on the side of the magnetically conductive unit away from the eddy current sensing unit, so as to magnetize the magnetically conductive unit.

17. The control method for the processing equipment according to claim 16, characterized in that, The eddy current sensing unit includes a detection coil, the magnetically conductive unit includes a magnetically conductive block, the magnetically conductive block has a receiving groove, the opening of the receiving groove faces the component to be detected, and the detection coil unit is received in the receiving groove.

18. The control method for the processing equipment according to claim 17, characterized in that, The axial direction of the detection coil is perpendicular to the Z-axis.

19. The control method for the processing equipment according to claim 17, characterized in that, The processing equipment also includes a processing platform, which is a metal pad. The displacement sensor also includes a magnetic yoke, which is disposed in the area surrounding the detection coil.

20. The control method for the processing equipment according to claim 19, characterized in that, The magnetic yoke includes a connecting section and two extension sections. Each end of the connecting section is connected to one of the extension sections, and the two extension sections are located on both sides of the detection coil along its axial direction.

21. The control method for the processing equipment according to claim 19, characterized in that, The magnetic yoke includes a connecting section and two extension sections, with each end of the connecting section connected to one of the extension sections, and the two extension sections on both sides of the detection coil in the circumferential direction.

22. The control method for the processing equipment according to claim 20 or 21, characterized in that, The two ends of the connecting segment are respectively connected to an extension segment to form a U-shaped or C-shaped magnetic yoke.

23. The control method for the processing equipment according to claim 17, characterized in that, The magnetic conductive block and the magnetization unit are stacked; The receiving groove is provided with a positioning post, which extends along the bottom of the receiving groove to the opening of the receiving groove, and the detection coil is sleeved on the positioning post.

24. The control method for the processing equipment according to claim 17, characterized in that, The difference between the distance between the magnetic block and the component to be tested and the distance between the detection coil and the component to be tested is less than the diameter of the detection coil.

25. The control method for the processing equipment according to any one of claims 12-24, characterized in that, The component to be tested includes at least one of a metal component and a magnetic component.

26. The control method for the processing equipment according to claim 25, characterized in that, The tool holder is columnar, and the metal part and the magnetic part are ring-shaped.

27. A processing equipment, characterized in that, The system includes a cutting module and a processing platform. The processing platform is used to support the object to be cut. The cutting module includes a fixed base for transmission connection with a driving component; a tool holder slidably connected to the fixed base along the Z-axis direction, the tool holder for mounting a cutting head, and a component to be detected is provided at one end of the tool holder away from the cutting head along the Z-axis direction; the cutting module is provided with a displacement sensor in the vicinity of the component to be detected to detect displacement changes of the component to be detected. The processing equipment further includes a processor for executing the control method as described in any one of claims 12-26.

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