An intelligent tool handle self-powered device

Abstract

The present invention relates to the field of mechanical processing and manufacturing, and specifically to a device that realizes self-powering of an intelligent tool handle through electromagnetic induction. The traditional power supply method of the tool handle usually relies on an external power supply or a battery, which is inconvenient to use and limits the range of motion of the tool. The device uses the principle of electromagnetic induction to receive the energy of external electromagnetic waves or electromagnetic fields through an electromagnetic induction coil embedded in the tool handle, and converts it into the electrical energy required by the tool. The intelligent tool handle self-powering device is also equipped with power management technology for controlling the stable output of electrical energy, overload protection and other functions. Compared with the traditional power supply method, the device has the advantages of self-powering and no need for an external power supply or wire, which improves the flexibility and convenience of operation of the tool. The present invention provides an intelligent tool handle self-powering device based on electromagnetic induction technology, which has broad application prospects and can bring more efficient, safe and convenient cutting processing solutions to the field of mechanical processing and manufacturing.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing and manufacturing, and in particular to a device for realizing power supply for an intelligent tool handle through electromagnetic induction. Background Art

[0002] During the cutting process, a type of intelligent toolholder that can realize online monitoring of the processing process has gradually emerged. This type of toolholder extracts processing information through integrated sensors to determine whether the processing process is proceeding normally, adjust tool processing parameters in real time, evaluate and predict tool status, and optimize and improve the processing process. It plays a key role in achieving efficient, accurate and reliable processing operations. However, most toolholders rely on batteries for power supply, which limits long-term continuous monitoring during the processing process. In addition, the large battery volume also makes the toolholder bulky, increasing the possibility of interference. Therefore, the exploration of the power supply device for the intelligent toolholder has always been a difficult problem, which brings great inconvenience to the long-term application of the intelligent toolholder. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a self-power supply technology based on electromagnetic induction to realize the self-supply of energy for an intelligent tool handle.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The invention comprises a tool handle body arranged on a main shaft, a magnet bracket, a magnet, a copper coil, a tapered handle annular hole, and a rectifying and voltage-stabilizing circuit; the magnet bracket is provided with a wedge-shaped groove, and the magnet is connected to the magnet bracket via the wedge-shaped groove; the magnet bracket is arranged on the side of the interface between the main shaft and the tool handle body, and the magnet bracket is arranged on the main shaft end surface mounting cover via a bracket fastening screw; the copper coil (7) is arranged in the tapered handle annular hole (103); and the rectifying and voltage-stabilizing circuit is arranged on the tool handle body.

[0006] The rectifier and voltage stabilizing circuit includes 6 circuit board lead interfaces P15, capacitors C94-C97, C99-C100, C103-C105, resistors R116-R123, temperature measuring resistor RT1, LED lamp D6 and wireless power receiver U13; the circuit board lead interface P15 includes 6 interfaces; the wireless power receiver U13 includes interfaces CLAMP1, COMM1, AC1, AC2, BOOT1, BOOT2, CLAMP2, COMM2, OUT, CHG, ILIM, FOD, RECT, TS, EN1, EN2; one end of the capacitor C96 is connected in parallel with the capacitors C99 and C103 and connected to the AC1 interface of U13, and the other end of C96 is connected to the BOOT1 of U13; the other end of the capacitor C99 is connected to the interface CLAMP1 of U13; the other end of the capacitor C103 is connected to the interface COMM1 of U13; one end of the capacitor C97 is connected in parallel with the capacitors C100 and C104 and connected to the AC2 interface of U13, and the other end of C97 is connected to the BOOT2 of U13; the other end of the capacitor C100 is connected to the interface CLAMP2 of U13; The other end of capacitor C104 is connected to the interface COMM2 of U13; the positive pole of the LED lamp D6 is connected to the interface OUT of U13, and the negative pole is connected to the interface CHG of U13; one end of the resistor R116 is connected to the interface ILIM of U13, and the other end is connected to the resistors R117 and R121, and the interface FOD of U13; one end of the resistor R117 is connected to the interface FOD of U13, and the other end is connected to the interface RECT of U13 and the filter capacitor C105; one end of the resistor R121 is connected to the interface FOD of U13, and the other end is connected to GND; one end of the capacitor C105 is connected to RECT of U13, and the other end is connected to GND; one end of the resistor R119 is connected to VOUT, and the other end is connected to resistor R122 and interface 5 of P15, and the other end of resistor R122 is connected to GND; one end of the resistor R120 is connected to VOUT, and the other end is connected to resistor R123 and interface 6 of P15, and the other end of resistor R123 is connected to GND; the temperature measuring resistor RT1 is connected to interface TS of U13; interfaces 1 and 2 of P15 are connected to GND, interfaces 3 and 4 are connected to voltage source VOUT, interface 5 is connected to interface EN1 of U13, and interface 6 is connected to interface EN2 of U13.

[0007] It also includes a bridge signal processing board, a power management board, a main control board, a WiFi board, a collet, a nut and a milling cutter; four circuit board mounting platforms are arranged in the middle of the handle body, and the circuit board mounting platform is provided with an upper row of fastening threaded through holes and a lower row of fastening threaded blind holes; the bridge signal processing board, the power management board, the main control board, and the WiFi board are arranged on the four circuit board mounting platforms through the upper row of fastening screws and the lower row of fastening screws, respectively, and the upper row of fastening screws and the lower row of fastening screws are matched with the upper row of fastening threaded through holes and the lower row of fastening threaded blind holes, respectively; the cone handle circular ring hole is provided with a coil lead hole, a circuit board lead groove is provided between the adjacent circuit board mounting platforms, and a circuit board lead hole is provided on the circuit board mounting platform matched with the power management board; the induced current in the copper coil is transmitted to the power management board, the signal processing board, the main control board, and the WiFi board through the coil lead hole, the circuit board lead hole, and the circuit board lead groove; the collet, the nut, and the milling cutter are arranged in sequence at the lower end of the handle body. The rectifier and voltage stabilizing circuit is arranged on the power management board.

[0008] The tapered handle annular holes are arranged on the tapered handle of the handle body. The number of the tapered handle annular holes is 3 or more and they are evenly arranged along the circumference of the tapered handle.

[0009] The magnet has a longitudinal section in the shape of an arc.

[0010] The positive effects of the present invention are as follows: the present invention proposes an implementation method for electromagnetic induction self-powering of an intelligent tool handle, so that the tool handle no longer needs an external power supply or battery to power the circuit, and the solution of embedding the copper coil inside the tapered handle reduces the expansion of the external size of the tool handle, improves the integration of the tool handle, and reduces the possibility of processing interference of the intelligent tool handle; self-powering makes it possible to use the intelligent tool handle continuously for a long time, thereby improving the convenience of use; it reduces energy consumption, which is in line with the development trend of energy conservation and environmental protection; the present invention breaks the shackles of limited use time caused by battery power supply of intelligent tool handles; the present invention helps to promote the development of intelligent and automated industrial production, and improve the production efficiency and product quality of the manufacturing industry; the rotor embedded in the tapered handle of the present invention and the compact printed circuit board greatly improve the integration of the intelligent tool handle; the present invention provides a new solution for powering the intelligent tool handle, and has broad application prospects in related fields such as cutting processing, tool design and process optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1An exploded view of the overall structure of the intelligent knife handle of the present invention;

[0013] Figure 2 It is the assembly diagram of the knife handle of the present invention;

[0014] Figure 3 This is a main structural diagram of the knife handle of the present invention;

[0015] Figure 4 It is a schematic diagram of the electromagnetic induction structure of the present invention;

[0016] Figure 5 This is the circuit schematic diagram of the power management board.

[0017] In the figure: 1 tool handle body, 101 upper row of fastening screws, 102 lower row of fastening screws, 103 tapered handle ring hole, 104 coil lead hole, 105 circuit board lead groove, 106 circuit board lead hole, 109 circuit board mounting platform, 110 upper row of fastening threaded through holes, 111 lower row of fastening threaded blind holes, 2 collet, 3 nut, 4 milling cutter, 5 magnet bracket, 501 bracket fastening screws, 6 magnet, 7 copper coil, 11 bridge signal processing board, 12 power management board, 13 main control board, 14 WiFi board, 15 spindle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Establish the intelligent tool handle device characterizing the present invention:

[0020] like Figure 1-4 As shown, the intelligent tool handle device is composed of a tool handle body 1, an upper row of fastening screws 101, a lower row of fastening screws 102, a collet 2, a nut 3, a milling cutter 4, a magnet bracket 5, a bracket fastening screw 501, a magnet 6, a copper coil 7, a bridge signal processing board 11, a power management board 12, a main control board 13, and a WiFi board 14. The prototype structure model of the tool handle body 1 is HSK63A-ER40-160L.

[0021] The handle body 1 has undergone a lot of structural changes on the basis of the prototype handle. A tapered handle circular ring hole 103 is provided for embedding the copper coil 7; a coil lead hole is provided in the tapered handle circular ring hole 103 for the copper coil 7 to be led to the center of the handle for collection; a circuit board lead groove 105 is provided for the transmission of energy and signals between the bridge signal processing board 11, the power management board 12, the main control board 13 and the WiFi board 14; a circuit board lead hole 106 is provided to connect the collected copper coil 7 leads to the power management board 12 for rectification and voltage stabilization; a circuit board mounting platform 109, an upper row of fastening threaded through holes 110 and a lower row of fastening threaded blind holes 111 are provided in combination with an upper row of fastening screws 101 and a lower row of fastening screws 102 to realize the installation of the bridge signal processing board 11, the power management board 12, the main control board 13 and the WiFi board 14 with the handle body 1; the milling cutter 4 is installed with the handle body 1 through a collet 2 and a nut 3.

[0022] Implementation method of the electromagnetic induction self-powered device of the present invention:

[0023] The intelligent tool handle self-powering device of the present invention is as follows Figure 3-4 As shown. This method is based on Faraday's law of electromagnetic induction. The specific implementation method is to use a magnet bracket 5 to carry a magnet 6 to generate a constant magnetic field near the lower end of the spindle 15. The magnet bracket 5 is connected to the spindle 15 through the screw hole on the spindle cover by screws 501. The magnet bracket 5 is manufactured by 3D printing of white resin material, and the magnet 6 is a customized tile-shaped NdFeB strong magnet. At the same time, a tapered handle annular hole 103 distributed at 120° is set on the tool handle body 1 for embedding three copper coils 7 placed at 120°. When the machine tool is cutting, the copper coil 7 rotates with the tool handle body 1. At this time, the magnetic flux in the copper coil 7 changes with the rotation, and the changing magnetic flux will generate an induced potential. The copper coil 7 passes through the coil lead hole 104 and then is collected through the circuit board lead hole 106 to the power management board 12. After rectification and voltage stabilization, it supplies power to various circuits and components; the circuit schematic diagram of the power management board 12 is shown in the attached Figure 5As shown, the circuit includes 6 circuit board lead interfaces P15, capacitors C94-C97, C99-C100, C103-C105, resistors R116-R123, temperature measuring resistor RT1, LED lamp D6 and wireless power receiver U13; the circuit board lead interface P15 includes 6 interfaces; the wireless power receiver U13 includes interfaces CLAMP1, COMM1, AC1, AC2, BOOT1, BOOT2, CLAMP2, COMM2, OUT, CHG, ILIM, FOD, RECT, TS , EN1, EN2; one end of the capacitor C96 is connected in parallel with the capacitors C99 and C103 and connected to the AC1 interface of U13, and the other end of C96 is connected to the BOOT1 of U13; the other end of the capacitor C99 is connected to the interface CLAMP1 of U13; the other end of the capacitor C103 is connected to the interface COMM1 of U13; one end of the capacitor C97 is connected in parallel with the capacitors C100 and C104 and connected to the AC2 interface of U13, and the other end of C97 is connected to the BOOT2 of U13; the other end of the capacitor C100 is connected to the interface CLAMP2 of U13; The other end of capacitor C104 is connected to the interface COMM2 of U13; the positive pole of the LED lamp D6 is connected to the interface OUT of U13, and the negative pole is connected to the interface CHG of U13; one end of the resistor R116 is connected to the interface ILIM of U13, and the other end is connected to the resistors R117 and R121, and the interface FOD of U13; one end of the resistor R117 is connected to the interface FOD of U13, and the other end is connected to the interface RECT of U13 and the filter capacitor C105; one end of the resistor R121 is connected to the interface FOD of U13, and the other end is connected to GND; one end of the capacitor C105 is connected to the interface FOD of U13 13's RECT, the other end is connected to GND; the resistor R119 has one end connected to VOUT, and the other end is connected to the resistor R122 and the interface 5 of P15, and the other end of the resistor R122 is connected to GND; the resistor R120 has one end connected to VOUT, and the other end is connected to the resistor R123 and the interface 6 of P15, and the other end of the resistor R123 is connected to GND; the temperature measuring resistor RT1 is connected to the interface TS of U13; the interfaces 1 and 2 of P15 are connected to GND, the interfaces 3 and 4 are connected to the voltage source VOUT, the interface 5 is connected to the interface EN1 of U13, and the interface 6 is connected to the interface EN2 of U13.

[0024] When the generated induced voltage is delivered to the circuit through the copper coil 7, the internal synchronous rectifier feeds this voltage to the RECT pin with filter capacitor C105; the BQ51013 identifies and authenticates itself by switching the COM FET on and off, and by switching CCOMM on and off. If the authentication is successful, the transmitter will remain powered on;

[0025] The EN1 and EN2 pins include internal 200kΩ pull-down resistors, so if these pins are not connected, the wireless power receiver BQ51013 will default to AD-EN control mode;

[0026] However, these pins can be pulled high, as shown by resistors R119 and R120;

[0027] The BQ51013 provides two identical integrated communication FETs connected to pins COMM1 and COMM2. These FETs are used to modulate the secondary load current, enabling the BQ51013 to communicate error control and configuration information to the transmitter.

[0028] In addition to resistive load modulation, the BQ51013 is also capable of capacitive load modulation, as shown in the circuit on the left;

[0029] In this case, the capacitor is connected from COMM1 to AC1 and from COMM2 to AC2;

[0030] When the COMM switch is closed, a 22nF capacitor is actually connected between AC1 and AC2;

[0031] Connecting a capacitor between AC1 and AC2 modulates the impedance seen by the coil which will be reflected in the primary resistance as a change in current.

[0032] The above-described embodiments are only preferred embodiments of the present invention, and are not exhaustive of the feasible implementations of the present invention. For those skilled in the art, any obvious changes made thereto without departing from the principles and spirit of the present invention should be considered to be included in the scope of protection of the claims of the present invention.

Claims

1. An intelligent tool handle self-powered device, characterized in that: The tool comprises a tool handle body (1) arranged on a spindle (15), a magnet bracket (5), a magnet (6), a copper coil (7), a tapered handle annular hole (103), and a rectifying and voltage-stabilizing circuit; the magnet bracket (5) is provided with a wedge-shaped groove, and the magnet (6) is connected to the magnet bracket (5) via the wedge-shaped groove; the magnet bracket (5) is arranged on the side of the interface between the spindle and the tool handle body (1), the magnet bracket (5) is arranged on the end surface mounting cover of the spindle (15) via a bracket fastening screw (501), and the magnet bracket (5) is manufactured by 3D printing of white resin material; the copper coil (7) is arranged in the tapered handle annular hole (103); the rectifying and voltage-stabilizing circuit is arranged on the tool handle body (1); It also includes a bridge signal processing board (11), a power management board (12), a main control board (13), a WiFi board (14), a collet (2), a nut (3) and a milling cutter (4); four circuit board mounting platforms (109) are arranged in the middle of the tool handle body (1), and the circuit board mounting platforms (109) are provided with an upper row of fastening threaded through holes (110) and a lower row of fastening threaded blind holes (111); the signal processing board (11), the power management board (12), the main control board (13), and the WiFi board (14) are respectively arranged on the four circuit board mounting platforms (109) by means of an upper row of fastening screws (101) and a lower row of fastening screws (102), and the upper row of fastening screws (101) and the lower row of fastening screws (102) are respectively connected to the upper row of fastening threaded through holes (110) and the lower row of fastening screws (102). The conical handle circular hole (103) is provided with a coil lead hole (104), a circuit board lead groove (105) is provided between adjacent circuit board mounting platforms (109), and a circuit board lead hole (106) is provided on the circuit board mounting platform (109) that matches the power management board (12); the induced current in the copper coil (7) is transmitted to the power management board (12), the bridge signal processing board (11), the main control board (13), and the WiFi board (14) through the coil lead hole (104), the circuit board lead hole (106), and the circuit board lead groove (105); the collet (2), the nut (3), and the milling cutter (4) are sequentially arranged at the lower end of the handle body (1), and the rectifying and voltage stabilizing circuit is arranged on the power management board (12).

2. The intelligent tool handle self-powering device according to claim 1, characterized in that: The rectifier and voltage stabilizing circuit includes 6 circuit board lead interfaces P15, capacitors C94~C97, C99~C100, C103~C105, resistors R116~R123, temperature measuring resistor RT1, LED lamp D6 and wireless power receiver U13; the circuit board lead interface P15 includes 6 interfaces; the wireless power receiver U13 includes interfaces CLAMP1, COMM1, AC1, AC2, BOOT1, BOOT2, CLAMP2, COMM2, OUT, CHG, ILIM, FOD, RECT, TS, EN1, EN2; one end of the capacitor C96 is connected in parallel with the capacitors C99 and C103 and connected to the AC1 interface of U13, and the other end of C96 is connected to the BOOT1 of U13; the other end of the capacitor C99 is connected to the interface CLAMP1 of U13; the other end of the capacitor C103 is connected to the interface COMM1 of U13; one end of the capacitor C97 is connected in parallel with the capacitors C100 and C104 and connected to the AC2 interface of U13, and the other end of C97 is connected to the BOOT2 of U13; the other end of the capacitor C100 is connected to the interface CLAMP2 of U13; The other end of capacitor C104 is connected to the interface COMM2 of U13; the positive pole of the LED lamp D6 is connected to the interface OUT of U13, and the negative pole is connected to the interface CHG of U13; one end of the resistor R116 is connected to the interface ILIM of U13, and the other end is connected to the resistors R117 and R121, and the interface FOD of U13; one end of the resistor R117 is connected to the interface FOD of U13, and the other end is connected to the interface RECT of U13 and the filter capacitor C105; one end of the resistor R121 is connected to the interface FOD of U13, and the other end is connected to GND; one end of the capacitor C105 is connected to RECT of U13, and the other end is connected to GND; one end of the resistor R119 is connected to VOUT, and the other end is connected to resistor R122 and interface 5 of P15, and the other end of resistor R122 is connected to GND; one end of the resistor R120 is connected to VOUT, and the other end is connected to resistor R123 and interface 6 of P15, and the other end of resistor R123 is connected to GND; the temperature measuring resistor RT1 is connected to interface TS of U13; interfaces 1 and 2 of P15 are connected to GND, interfaces 3 and 4 are connected to voltage source VOUT, interface 5 is connected to interface EN1 of U13, and interface 6 is connected to interface EN2 of U13.

3. The intelligent tool handle self-powering device according to claim 1 or 2, characterized in that: The tapered shank annular holes (103) are arranged on the tapered shank of the tool handle body (1); the number of the tapered shank annular holes (103) is 3 or more and they are evenly arranged along the circumference of the tapered shank.

4. The intelligent tool handle self-powering device according to claim 1 or 3, characterized in that: The magnet (6) has a longitudinal section in the shape of an arc.

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