A laminated material state-sensing tool holder, a tool including the tool holder, and a milling machine

Abstract

The present invention relates to the field of tool processing, and provides a laminated material state sensing tool holder, a tool including the tool holder, and a milling machine, aiming to solve the problem of low machining quality of materials at the junction during the processing of laminated materials. The tool holder body, circuit board, conductor, and insulator; a conductor and a collet are arranged inside the lower end of the tool holder body, and the collet is used to connect the tool, so that the tool is insulated from the tool holder body. An insulator is arranged around the conductor, so that the tool can only be connected to the conductor; a circuit board is arranged on the outer side of the tool holder body; one power cord is led out from the circuit board and connected to the tool holder body, and another power cord is connected to the conductor. When processing composite materials, the tool does not alarm. When the tool contacts a metal part, the circuit board detects the conduction signal and adjusts the processing parameters through the feedback signal, thereby optimizing the processing process.

Description

Technical Field

[0001] The present invention relates to the field of tool machining, and particularly to a laminated material state sensing tool holder, a tool including the tool holder, and a milling machine. Background Art

[0002] The statements herein only provide background art related to the present invention and do not necessarily constitute prior art.

[0003] Laminated materials composed of composites and metals such as titanium alloys are important components of aviation parts. In cutting machining, they play a very important role in the machining quality, stability, and safety of laminated materials. However, the machining parameters required for composite materials and titanium alloy workpieces, such as rotational speed and feed, are different. When traditional tool holders machine laminated materials, they usually measure the thickness of composite material workpieces and the thickness of metal workpieces such as titanium alloys in advance, and conservatively estimate the machining parameters based on the measurement, or use the same machining parameters for different materials, resulting in difficult to guarantee the machining quality at the junction of the composite material and titanium alloy laminates of the workpiece, and at the same time, the machining efficiency is not high. Specifically, reference can be made to the existing patents CNCN109108317A, CN109226803A, etc.

[0004] In Patent CN112404478A, an adaptive drilling device and method for a composite material / metal material laminated structure are disclosed. It includes a machine tool, on which a tool holder is fixedly installed. A drill bit is clamped on the tool holder, and the drill bit drills other materials, composite materials, and metal materials. The metal material is connected to a resistance detection device through a wire. The machine tool, tool holder, drill bit, other materials, composite materials, metal material, and resistance detection device are connected by wires to form a resistance measurement circuit. The resistance detection device is connected to a controller through a wire, and the controller is connected to the PLC processor of the machine tool through a wire. When the drill bit drills in the composite material, since the composite material is a fiber-reinforced or particle-reinforced composite material with low electrical conductivity, the resistance value in the entire resistance measurement circuit is extremely large. When the controller receives the resistance value signal with an extremely large resistance value transmitted by the resistance detection device, it identifies that the drill bit has not reached the interface of the composite material / metal material laminated structure, and the processing process parameters remain unchanged. When the drill bit drills at the interface of the composite material / metal material laminated structure, since the drill bit has contacted the metal material, and the metal material is a titanium alloy, stainless steel, or aluminum alloy material with high electrical conductivity, the resistance value in the entire resistance measurement circuit is extremely small. When the controller receives the resistance value signal with an extremely small resistance value transmitted by the resistance detection device, it identifies that the drill bit has reached the interface of the composite material / metal material laminated structure, and the controller sends the preset processing process parameters to the PLC processor of the machine tool. However, this patent requires adding other materials above and below the composite material and metal workpiece to isolate the direct connection between the workpiece and the machine tool. Limited by the volume and other installation restrictions of other materials, and wires need to be led out from the workpiece and the machine tool, so the assembly and installation are difficult, and it is restricted for closed processing with high requirements for the processing environment or high-precision machine tools that are difficult to lead wires. Summary of the Invention

[0005] In view of the above technical problems, the purpose of the present invention is to provide a laminated material state sensing tool holder, a tool including the tool holder, and a milling machine, which can effectively alleviate the problem of low interface quality during the laminated processing, reduce the surface roughness of the processing, improve the surface quality of the processing, and improve the processing efficiency at the same time.

[0006] To achieve the above purpose, the present invention provides a laminated material state sensing tool holder, a tool including the tool holder, and a milling machine, specifically as follows:

[0007] In the first aspect, the present invention provides a laminated material state sensing tool holder, including a tool holder body, a circuit board, a conductor, and an insulator;

[0008] A conductor and a collet are arranged inside the lower end of the tool holder body. The collet is used to connect the tool, making the tool insulated from the tool holder body. An insulator is arranged around the conductor, so that the tool can only be connected to the conductor;

[0009] A circuit board is provided on the outer side of the tool holder body; one power cord led out from the circuit board is connected to the tool holder body, and the other power cord is connected to the conductor.

[0010] As a further technical solution, the outer ring of the circuit board is sealed by a housing to prevent cutting fluid from entering the interior.

[0011] As a further technical solution, the housing includes an upper housing and a lower housing. The upper housing is an annular housing with an annular boss on one side, which is positioned in cooperation with the annular groove of the lower housing. There is a sealing groove on the contact surface between the upper housing and the tool holder, and it is matched with a first sealing ring to prevent the cutting fluid from the upper part from entering the interior; the lower housing is an annular housing with a sealing groove at the upper end, which is used in cooperation with a second sealing ring to prevent the cutting fluid from both sides from entering the interior; there are several bolt holes on both sides of the lower housing, and it is fixed to the upper housing by bolts.

[0012] As a further technical solution, there is an annular circuit insulator inside the lower housing. There are several bolt holes on both sides of the circuit insulator, and it is fixed to the lower housing by bolts. There is an annular circuit board on the upper side of the circuit insulator, and the circuit board is pressed on the insulating board by the bolts of the lower outer shell.

[0013] As a further technical solution, the surface of the collet in contact with the tool holder body is coated with insulating paint.

[0014] As a further technical solution, the collet includes a non-insulating collet and an inverted conical ceramic sheet attached to the outer side of the non-insulating collet.

[0015] As a further technical solution, the tool holder body includes an upper tool holder body and a lower tool holder body. The upper tool holder body and the lower tool holder body are connected by a ceramic connector to achieve insulation between the upper tool holder body and the lower tool holder body. The collet and the conductor are arranged inside the lower tool holder body.

[0016] As a further technical solution, the circuit board includes a conductive sensing module, a signal processing module, a control circuit module, a feedback control module, and a wireless communication module; the conductive sensing module, the signal processing module, the control circuit module, and the feedback control module are connected in sequence. The feedback control module adjusts the instructions of the control circuit module to adjust the processing parameters, and sends them to the control system of the machine tool through the wireless communication module. The control system of the machine tool changes the drilling parameters of the tool.

[0017] In a second aspect, the present invention also provides a tool, which includes the laminated material state sensing tool holder described above, and the tail of the tool abuts against the conductor.

[0018] In a third aspect, the present invention also provides a milling machine, on which the tool described above is installed.

[0019] Advantages of the present invention:

[0020] The present invention concentrates the device for detecting laminated materials on the tool shank, avoiding the modification of machine tools or other components, which is convenient for the use of some machine tools that are difficult to modify, does not require wire leads, is less affected by workpieces, and has the effect of being easy to install compared with ordinary processing machine tools.

[0021] The present invention uses the principle of circuit conduction alarm as the feedback signal for tool shank processing, which can improve the quality of the processing interface of laminated materials. At the same time, the feedback structure is simple, the feedback time is short, the accuracy of the feedback signal can be improved, and the machine tool can be ensured to modify the processing parameters in time to improve the processing efficiency. Specifically, the collet is used to clamp the tool. During assembly, the tool is pushed against the conductor to form a connection. The tool shank body is connected to the machine tool to form a conductive state; the metal layer of the workpiece is connected to the machine tool to form a conductive state; a power supply wire is led out from the circuit board and connected to the tool shank body, and another power supply wire is led out and connected to the conductor; thus, the disconnection point of the entire circuit is at the contact position between the tool and the workpiece; when the tool processes to the metal layer, the metal layer is connected through the tool, the conductor, the tool shank body and the machine tool itself to form a conductive circuit. At this time, the circuit board is turned on and starts to send out signals, sending signals to the acquisition card or the machine tool to change the drilling parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation to this application.

[0023] Figure 1 It is a schematic cross-sectional structure diagram of the tool shank of the first insulation method of the present invention;

[0024] Figure 2 It is a schematic cross-sectional structure diagram of the tool shank of the second insulation method of the present invention;

[0025] Figure 3 It is a schematic cross-sectional structure diagram of the tool shank of the second insulation method of the present invention;

[0026] Figure 4 It is a schematic diagram of the signal feedback process of the present invention;

[0027] Figure 5 It is a schematic diagram of the module of the circuit board of the present invention;

[0028] In the figure: 1. Tool shank body; 2. Circuit board insulator; 3. Lower housing; 4. Bolt; 5. Upper housing; 6. First sealing ring; 7. Second sealing ring; 8. Circuit board; 9. Conductor insulator; 10. Conductor; 11. Collet; 12. Ceramic sheet; 13. Ceramic connector; 14. Insulating material layer; 15. Metal layer; 16. Machine tool; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those of ordinary skill in the field to which the present invention pertains. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or items appearing before this term cover the elements or items listed after this term and their equivalents, without excluding other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0031] Embodiment 1

[0032] This embodiment provides a tool holder for sensing the state of a laminated material, specifically a tool holder for circuit conduction alarm with collet insulation, which includes a tool holder body, a circuit board, a conductor and an insulator; a conductor and a collet are arranged inside the lower end of the tool holder body, and the collet is used to connect the tool, so that the tool is insulated from the tool holder body. An insulator is arranged around the conductor, so that the tool can only be connected to the conductor; a circuit board is arranged on the outer side of the tool holder body; a power line is led out from the circuit board and connected to the tool holder body, and another power line is connected to the conductor, aiming to solve the problem of low processing quality of the material at the junction during the processing of laminated materials, reduce the surface roughness of the processing, and improve the processing efficiency at the same time. When the tool of this tool holder processes a composite metal laminated material, when processing the composite material, the tool does not alarm. When the tool contacts a metal part, the circuit board detects the conduction signal and adjusts the processing parameters through the feedback signal, thereby optimizing the processing process. This design has a simple structure, rapid feedback, can accurately activate the alarm system, ensure real-time adjustment during the processing, improve the processing efficiency and guarantee the processing quality. In this embodiment, the device for detecting the laminated material is concentrated on the tool holder, avoiding the transformation of the machine tool or other components, which is convenient for the use of some machine tools that are difficult to transform, does not require wire leading, is less affected by the workpiece, and has the effect of being easy to install compared with ordinary processing machine tools.

[0033] Specifically, the present embodiment will be described below with reference to specific drawings:

[0034] As Figure 1As shown in the figure, the laminated material state-sensing tool holder disclosed in this embodiment includes a tool holder body 1, a circuit board 8, a conductor 10, a conductor insulator 9, and a collet 11; the tool holder body 1 is an integral structure, with two cross-shaped holes in the middle of the tool holder body 1, and a through hole in the middle of the cross-shaped holes to connect the conductor 10. The conductor 10 is insulated from the tool holder body 1, and the conductor 10 is connected to the tool installed in the collet 11; at the same time, a circuit board 8 is provided on the outer side of the tool holder body 1; one power line is led out from the circuit board 8 and connected to the tool holder body 1, and another power line is connected to the conductor 10.

[0035] More specifically, the conductor 10 is made of an easily conductive material such as a cylindrical copper block. The conductor insulator 9 is cylindrical and surrounds the conductor 10. There is an inner concave cylindrical groove in the middle of the conductor insulator 9, which is just used to place the conductor 10.

[0036] The upper end of the tool holder body 1 is a common tool holder joint, and the lower end collet 11 of the tool holder body 1 is an insulating collet 11. Specifically, the surface of the collet 11 has insulating paint similar to the surface of enameled wire, forming an insulating space together with the cylindrical conductor insulator 9; so that the tool cannot directly contact the tool holder body 1, realizing insulation between the tool, the conductor 10 and the tool holder body 1; the tool can only be connected to the conductor 10; the conductor 10 can only be connected to the circuit board 8 through a wire.

[0037] Furthermore, in order to protect the circuit board 8 and prevent cutting fluid from entering the circuit board 8, in this embodiment, an upper housing 5 and a lower housing 3 are fitted to the outer side of the tool holder body 1 by interference fit, etc. The upper housing 5 is a ring-shaped housing with a ring-shaped boss on one side, which is fitted and positioned with the ring-shaped groove of the lower housing 3. There is a sealing groove on the contact surface between the upper housing 5 and the tool holder, which is fitted with a first sealing ring 6 to prevent upper cutting fluid from entering the interior. The lower housing 3 is also a ring-shaped housing with a sealing groove at the upper end, which is used in cooperation with the second sealing ring 7 to prevent cutting fluid from both sides from entering the interior. There are several bolt holes on both sides of the lower housing 3, and it is fixed to the upper housing 5 by bolts 4.

[0038] Furthermore, there is a ring-shaped circuit board insulator 2 inside the lower housing 3. There are multiple bolt holes on both sides of the insulating board, and it is fixed to the upper housing 5 by bolts 4. There is a ring-shaped circuit board 8 on the upper side of the circuit board insulator 2, and the circuit board 8 is pressed on the circuit board insulator 2 by the bolts 4 on the lower housing to realize the fixation of the circuit board 8.

[0039] Further, the circuit board 8 in this embodiment includes a conductive sensing module, a signal processing module, a control circuit module, a feedback control module, a wireless communication module, and a power management module; when the tool processes to the metal layer 15, the conductive sensing module receives a signal and then transmits it to the signal processing module. The signal processing module processes and amplifies the current signal and sends it to the control circuit module. The control circuit module performs logical judgment and controls the emission of a feedback signal, which is sent to the feedback control module. The feedback control module adjusts the instructions of the control circuit module to adjust the processing parameters and sends them to the control system of the machine tool 16 through the wireless communication module. The control system of the machine tool 16 changes the drilling parameters of the tool.

[0040] Further, the conductive sensing module in this embodiment can adopt an existing current detection module.

[0041] The specific working principle is as follows:

[0042] The collet 11 is used to hold the tool. During assembly, the tool is pressed against the conductor 10 to form a connection, and the tool holder body 1 is connected to the machine tool 16 to form a conductive state; the metal layer of the workpiece is connected to the machine tool 16 to form a conductive state; the circuit board 8 leads out a power cord and connects it to the tool holder body 1, and another power cord is led out and connected to the conductor 10 through a cross-channel; thus, the disconnection point of the entire circuit is at the contact position between the tool and the workpiece; the workpiece in this embodiment is as Figure 4 shown, which includes an insulating material layer 14 and a metal layer 15; when the tool processes to the metal layer 15, the metal layer 15 forms a conductive loop through the tool, the conductor 10, the tool holder body 1, and the machine tool itself. At this time, the circuit board 8 is turned on and starts to send a signal to the control system of the machine tool 16, and the control system of the machine tool 16 changes the drilling parameters.

[0043] This embodiment uses the circuit conduction alarm principle as the feedback signal for tool holder processing, which can improve the processing interface quality of laminated materials. At the same time, the feedback structure is simple, the feedback time is short, the accuracy of the feedback signal can be improved, and it can ensure that the machine tool 16 can modify the processing parameters in time to improve the processing efficiency.

[0044] Embodiment 2

[0045] This embodiment provides another state-sensing tool holder for laminated materials, as Figure 2As shown, it has a tool holder body 1, an upper housing 5, a lower housing 3, a circuit board 8, a conductor 10, a conductor insulator 9, and a ceramic sheet 12. The difference from Embodiment 1 is the specific design of the collet 11. In this embodiment, the collet 11 is an ordinary tool holder collet (non-insulated collet). An inverted conical ceramic sheet 12 that fits against the outer side of the ordinary tool holder collet is installed on the outer side of the collet 11. The inverted conical ceramic sheet 12 prevents the collet 11, the tool, and the tool holder body 1 from being directly electrically connected, forming an insulating space, so that the tool can only be connected to the conductor 10. Specifically, the collet 11 is used to hold the tool. During assembly, the tool presses against the conductor 10 to form a connection. The tool holder body 1 is connected to the machine tool 16 to form an electrically conductive state; the metal layer of the workpiece is connected to the machine tool 16 to form an electrically conductive state; the circuit board 8 leads out a power cord and connects it to the tool holder body 1, and another power cord is led out and connected to the conductor 10 through a cross-channel; thus, the break point of the entire circuit is at the contact position between the tool and the workpiece. The workpiece in this embodiment is such as Figure 4 As shown, it includes an insulating material layer 14 and a metal layer 15; when the tool processes to the metal layer 15, the metal layer 15 forms an electrically conductive loop through the tool, the conductor 10, the tool holder body 1, and the machine tool itself. At this time, the circuit board 8 is turned on and starts to send out signals, sending signals to the acquisition card or the machine tool 16 to change the drilling parameters.

[0046] Taking the principle of circuit conduction alarm as the feedback signal for tool holder processing in this embodiment can improve the processing interface quality of laminated materials. At the same time, this feedback structure is simple, the feedback time is short, it can improve the accuracy of the feedback signal, and it can ensure that the machine tool 16 can modify the processing parameters in time to improve the processing efficiency.

[0047] The remaining structures are the same as those in Embodiment 1 and will not be elaborated here.

[0048] Embodiment 3

[0049] This embodiment provides a laminated material state sensing tool holder, as Figure 3 shown, which has a tool holder body 1, an upper housing 5, a lower housing 3, a circuit board 8, a conductor 10, and a ceramic connector 13. The difference from Embodiment 1 and Embodiment 2 is the design of the conductor insulator 9. In this embodiment, the ceramic connector 13 replaces the conductor insulator 9 in Embodiment 1, and the design of the tool holder body 1 is also different, specifically as follows:

[0050] In this embodiment, the tool shank body 1 is divided into two sections, namely the upper tool shank body 1 and the lower tool shank body 1. The upper tool shank body 1 and the lower tool shank body 1 are welded and fixed together by a ceramic connector 13. The collet 11 is installed inside the lower tool shank body 1. Through holes are provided in the ceramic connector 13 and inside the upper tool shank body 1, and a conductor 10 is arranged in the through holes. The collet 11 is installed inside the lower tool shank; the ceramic connector 13 makes the tool in the collet 11 and the upper tool shank body 1 not directly conduct, forming an insulating space; in this embodiment, the ceramic connector 13 is in concave-convex fit with the lower tool shank, and the ceramic connector 13 is in concave-convex fit with the upper tool shank, facilitating the connection among the three.

[0051] Furthermore, the conductor 10 is made of an easily conductive material such as a cylindrical copper block. The conductor 10 is surrounded by the ceramic connector 13, and there is a concave cylindrical groove in the middle of the ceramic connector 13, which just places the conductor 10, realizing the insulation between the conductor 10 and the tool shank body 1, so that the conductor 10 can only be connected to the circuit board 8.

[0052] Furthermore, the upper tool shank body 1 is an ordinary tool shank joint, and the collet 11 inside the lower tool shank body 1 is an insulating collet 11. The collet 11 can adopt the collet 11 disclosed in Embodiment 1, that is, the surface of the collet 11 has insulating paint similar to the surface of enameled wire; it can also adopt the collet 11 disclosed in Embodiment 2, that is, the collet 11 is an ordinary non-insulating tool shank collet 11, and an inverted conical ceramic piece 12 that fits with the outside of the ordinary tool shank collet 11 is installed on the outside. The inverted conical ceramic piece 12 makes the collet 11 and the tool shank body 1 not directly conduct, forming an insulating space.

[0053] During assembly, the tool abuts against the conductor 10 to form a connection, and the tool shank body 1 is connected to the machine tool 16 to form a conductive state; the metal layer of the workpiece is connected to the machine tool 16 to form a conductive state; a power cord is led out from the circuit board 8 and connected to the tool shank body 1, and another power cord is led out and connected to the conductor 10 through a cross-channel; thus, the disconnection point of the entire circuit is at the contact position between the tool and the workpiece; the workpiece in this embodiment is as Figure 4 shown, which includes an insulating material layer 14 and a metal layer 15; when the tool processes to the metal layer 15, the metal layer 15 is connected through the tool, the conductor 10, the tool shank body 1 and the machine tool itself to form a conductive loop. At this time, the circuit board 8 is turned on and starts to send out signals, sending signals to the acquisition card or the machine tool 16 to change the drilling parameters.

[0054] In this embodiment, the circuit conduction alarm principle is used as the feedback signal for the tool holder machining. When the tool contacts the metal layer, the circuit is conducted. At this time, the drilling parameters are changed. In this way, the feedback structure is simple, the feedback time is short, the accuracy of the feedback signal can be improved, and at the same time, it can ensure that the machine tool 16 can modify the machining parameters in time to improve the machining efficiency. In this embodiment, the device for detecting the laminated material is concentrated on the tool holder, avoiding the transformation of the machine tool or other components, which is convenient for the use of some machine tools that are difficult to transform, does not require lead wires, is less affected by the workpiece, and has the effect of being easy to install compared with ordinary machining machine tools.

[0055] The remaining structures are the same as those in Embodiment 1 and will not be elaborated here.

[0056] Embodiment 4

[0057] This embodiment discloses a tool, which is installed on the laminated material state-sensing tool holder described in any one of Embodiments 1-3. The tool is installed in the collet 11. During assembly, the tool abuts against the conductor 10 to form a connection, and the tool holder body 1 is connected to the machine tool 16 to form a conductive state; the metal layer 15 of the workpiece is connected to the machine tool 16 to form a conductive state; a power line is led out from the circuit board 8 and connected to the tool holder body 1, and another power line is led out through a cross-channel and connected to the conductor 10; thus, the disconnection point of the entire circuit is at the contact position between the tool and the workpiece; the workpiece in this embodiment is as Figure 4 shown, which includes an insulating material layer 14 and a metal layer 15; when the tool processes to the metal layer 15, the metal layer 15 is connected through the tool, the conductor 10, the tool holder body 1 and the machine tool itself to form a conductive loop. At this time, the circuit board 8 is turned on and starts to send out signals, sending signals to the acquisition card or the machine tool 16 to change the drilling parameters. This method can improve the machining interface quality of the laminated material. At the same time, the feedback structure is simple, the feedback time is short, the accuracy of the feedback signal can be improved, and at the same time, it can ensure that the machine tool can modify the machining parameters in time to improve the machining efficiency; in this embodiment, the device for detecting the laminated material is concentrated on the tool holder, avoiding the transformation of the machine tool or other components, which is convenient for the use of some machine tools that are difficult to transform, does not require lead wires, is less affected by the workpiece, and has the effect of being easy to install compared with ordinary machining machine tools.

[0058] Embodiment 5

[0059] This embodiment discloses a milling machine, on which there is a laminated material state-sensing tool holder described in any one of Embodiments 1-3, and a tool is installed on the tool holder; during assembly, the corresponding tool of the milling machine abuts against the conductor 10 to form a connection, and the tool holder body 1 is connected to the milling machine to form a conductive state; the metal layer 15 of the workpiece is connected to the milling machine to form a conductive state; a power line is led out from the circuit board 8 and connected to the tool holder body 1, and another power line is led out through a cross-channel and connected to the conductor 10; thus, the disconnection point of the entire circuit is at the contact position between the tool and the workpiece; the workpiece in this embodiment is asFigure 4 As shown, it includes an insulating material layer 14 and a metal layer 15; when the tool processes the metal layer 15, the metal layer 15 forms a conductive loop through the tool, the conductor 10, the tool holder body 1 and the milling machine itself. At this time, the circuit board 8 is turned on and starts to send signals, sending signals to the acquisition card or the milling machine to change the drilling parameters; this method can improve the processing interface quality of the laminated material. At the same time, the feedback structure is simple, the feedback time is short, the accuracy of the feedback signal can be improved, and the machine tool can be ensured to modify the processing parameters in time to improve the processing efficiency; in this embodiment, the device for detecting the laminated material is concentrated on the tool holder, avoiding the transformation of the machine tool or other components, which is convenient for the use of some machine tools that are difficult to transform, does not require lead wires, is less affected by the workpiece, and has the effect of being easy to install compared with ordinary processing machine tools.

[0060] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A state-sensing tool handle for laminated materials, characterized in that It includes a tool shank body, a circuit board, a conductor, and an insulator; Inside the lower end of the tool shank body, a conductor and a collet are provided. The collet is used to connect the tool, making the tool insulated from the tool shank body. An insulator is arranged around the conductor, so that the tool can only be connected to the conductor; A circuit board is arranged on the outer side of the tool shank body; One power cord is led out from the circuit board and connected to the tool shank body, and another power cord is connected to the conductor; During assembly, the tool is pressed against the conductor to form a connection. The tool shank body is connected to the machine tool to form an electrically conductive state; the metal layer of the workpiece is connected to the machine tool to form an electrically conductive state. The disconnection point of the entire circuit is at the contact position between the tool and the workpiece. The workpiece includes an insulating material layer and a metal layer.

2. The laminated material state-sensing tool handle according to claim 1, wherein The outer ring of the circuit board is sealed by a housing to prevent cutting fluid from entering the interior.

3. The state-sensing tool shank of the laminated material according to claim 2, characterized in that, The housing includes an upper housing and a lower housing. The upper housing is a ring-shaped housing with a ring-shaped boss on one side, which is matched and positioned with the ring-shaped groove of the lower housing. There is a sealing groove on the contact surface between the upper housing and the tool shank, which is matched with the first sealing ring to prevent cutting fluid from the upper part from entering the interior; the lower housing is a ring-shaped housing with a sealing groove at the upper end, which is used in cooperation with the second sealing ring to prevent cutting fluid from both sides from entering the interior; bolt holes are provided on both sides of the lower housing and are fixed to the upper housing by bolts.

4. The laminated material state-sensing tool holder according to claim 3, wherein There is a ring-shaped circuit insulator inside the lower housing. There are several bolt holes on both sides of the circuit insulator, which are fixed to the lower housing by bolts. There is a ring-shaped circuit board on the upper side of the circuit insulator, and the circuit board is pressed on the insulator by the bolts on the lower housing.

5. The laminated material state-sensing tool shank according to claim 1, characterized in that The surface of the collet in contact with the tool shank body is coated with insulating paint.

6. The state-sensing tool holder of the laminated material according to claim 1, characterized in that, The collet includes a non-insulating collet and an inverted conical ceramic sheet attached to the outer side of the non-insulating collet.

7. The laminated material state-sensing tool shank according to claim 1, wherein The tool shank body includes an upper tool shank body and a lower tool shank body. The upper tool shank body and the lower tool shank body are connected by a ceramic connecting body to achieve insulation between the upper tool shank body and the lower tool shank body. The collet and the conductor are arranged inside the lower tool shank body.

8. The laminated material state-sensing tool handle according to claim 1, wherein The circuit board includes a conductive sensing module, a signal processing module, a control circuit module, a feedback control module, and a wireless communication module; the conductive sensing module, the signal processing module, the control circuit module, and the feedback control module are connected in sequence. The feedback control module adjusts the instructions of the control circuit module to adjust the processing parameters and sends them to the control system of the machine tool through the wireless communication module, and the control system of the machine tool changes the drilling parameters of the tool.

9. A cutting tool, characterized in that, It is installed on the laminated material state sensing tool shank according to any one of claims 1-8, and the tail of the tool is pressed against the conductor.

10. A milling machine, characterized in that, The tool according to claim 9 is installed thereon.

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