Rotary power supply machining cutter handle and equipment

Abstract

The utility model discloses a machining cutter handle and equipment with a rotary power supply function, and relates to the technical field of machining, the machining cutter handle comprises a cutter handle shaft, a shell, a signal acquisition module, a power supply module and a rotating speed sensor, a rotor coil and a stator magnet of the power supply module generate a magnetic induction line cutting phenomenon, and then alternating current is generated; direct current is formed through rectification and voltage stabilization to stably output voltage below 12V for the signal acquisition board, so that the acquisition precision and stability are effectively improved, and stable and high-frequency acquisition of strain signals by the strain monitoring piece can be realized; in addition, a rotating speed sensor is further arranged to assist a user in testing the rotating speed of the machining cutter handle in the operation process, a large number of bases are further provided for the user to analyze data, the data are further perfected, and systematization of data monitoring can be achieved. The machining equipment comprises the equipment main body, the cutter and the machining cutter handle, and the machining equipment is high in intelligent degree and capable of achieving closed-loop control.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a rotary power supply machining tool holder and device. Background Technology

[0002] Machining tool holders are connecting components between machine spindles, cutting tools, and other accessories, primarily used to transmit torque and withstand cutting forces. During machining, it is necessary to monitor process parameters such as pressure, torque, lateral force, and side force of the tool holder in real time with high precision in situ, enabling visualization and digitization of the solid-state machining process.

[0003] The problems with existing technologies are: 1. Using an external charging module for charging cannot guarantee synchronous self-powering during operation, resulting in a significant reduction in processing efficiency; 2. Poor signal monitoring accuracy and stability. Utility Model Content

[0004] This invention provides a rotary-powered machining tool holder and device to solve the problems in the prior art.

[0005] In a first aspect, this utility model provides a rotary-powered machining tool holder, including a tool holder shaft, a housing, a signal acquisition module, a power supply module, and a speed sensor; the housing is disposed on the tool holder shaft; the signal acquisition module includes a strain monitoring element, a signal acquisition board, a voltage regulator and rectifier assembly, and a built-in power supply; the strain monitoring element is disposed on the tool holder shaft; the signal acquisition board, the voltage regulator and rectifier assembly, and the built-in power supply are all disposed within the housing, the signal acquisition board is connected to the built-in power supply and the strain monitoring element respectively, and the voltage regulator and rectifier assembly is connected to the built-in power supply and the power supply module respectively; the power supply module includes a rotor coil and a stator magnet; the rotor coil is connected to the housing, and the voltage regulator and rectifier assembly is connected to the rotor coil; the stator magnet and the rotor coil are electromagnetically induced together; the speed sensor is coupled to the tool holder shaft for monitoring the speed of the tool holder shaft.

[0006] Secondly, this utility model provides a rotary power supply machining equipment, including a main body, a cutting tool, and a machining tool holder; one end of the tool holder shaft is connected to the spindle of the main body, and the other end is connected to the cutting tool.

[0007] The beneficial effects of this utility model are:

[0008] When the tool holder shaft of this invention rotates, it synchronously drives the housing to rotate. The housing drives the rotor coil to rotate, and the rotor coil and stator magnet generate alternating current by cutting magnetic lines of force. After rectification and voltage stabilization, it becomes direct current. This direct current is stably output to the signal acquisition board at a voltage below 12V through the built-in power supply, which effectively improves the accuracy and stability of the acquisition. It can realize stable and high-frequency acquisition of strain signals (process signals such as pressure, torque, lateral force and side force) of strain monitoring devices. In addition, this invention is also equipped with a speed sensor to assist users in testing the speed of the machining tool holder during operation, which further provides a large foundation for users to analyze data, further improve the data, and realize the systematization of data monitoring. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of a machining tool holder according to the present application;

[0011] Figure 2 This is a vertical cross-sectional view of the machining tool holder of this application;

[0012] Figure 3 yes Figure 1 Another perspective illustration;

[0013] Figure 4 This is a schematic diagram of another structure of the machining tool holder in this application;

[0014] Figure 5 This is a schematic diagram of the structure of a machining equipment according to this application;

[0015] The markings in the attached diagram are explained as follows:

[0016] 100. Tool holder shaft; 110. Shoulder; 120. Variable diameter section;

[0017] 200. Shell;

[0018] 300. Signal acquisition module; 310. Strain monitoring device; 320. Signal acquisition board; 330. Voltage regulator and rectifier assembly; 340. Built-in power supply; 350. Power display screen;

[0019] 400. Power supply module; 410. Rotor coil; 420. Stator magnet;

[0020] 500. Speed ​​sensor;

[0021] 600. Drive mechanism;

[0022] 700, Control Unit;

[0023] 800, External power supply;

[0024] 900. Machining equipment; 910. Equipment body; 920. Cutting tools; 930. Connecting frame. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0026] This embodiment discloses a rotary power supply machining tool holder and device. First, the machining tool holder of this embodiment will be introduced.

[0027] like Figure 1 As shown, the machining tool holder in this embodiment includes a tool holder shaft 100, a housing 200, a signal acquisition module 300, a power supply module 400, and a speed sensor 500.

[0028] like Figure 2 As shown, the upper end of the tool holder shaft 100 can be connected to the spindle of the machining equipment 900, and the lower end can be connected to any type of tool, such as a machining tool or a friction welding stirring head. The middle part of the tool holder shaft 100 has a variable diameter section 120, which has a certain length along the axial direction. The outer diameter of the variable diameter section 120 is smaller than the outer diameter of other positions of the tool holder shaft 100. The variable diameter section 120 is configured as the thinnest end of the tool holder shaft 100. In this embodiment, the strain monitoring element 310 of the signal acquisition module 300 monitors the strain fluctuation at the position of the variable diameter section 120 to realize the synchronous visualization of the strain signal (pressure, torque, lateral force, and other process quantity signals such as side force) of the machining process.

[0029] like Figure 2 As shown, in this embodiment, a shoulder 110 is formed at the position of the variable diameter section 120, and the upper top surface of the housing 200 fits against the shoulder 110 in the height direction, thereby enabling the installation and positioning of the housing 200. In some preferred embodiments, the housing 200 is coaxially arranged with the tool holder shaft 100, and the housing 200 surrounds the variable diameter section 120 circumferentially. A signal acquisition module 300 is disposed inside the housing 200. In this embodiment, the housing 200 and the tool holder shaft 100 are detachably connected, facilitating assembly and disassembly. In some preferred embodiments, the housing 200 and the tool holder shaft 100 are detachably connected by multiple threaded parts (e.g., screws). When the tool holder shaft 100 rotates, the housing 200 can rotate together with the tool holder shaft 100.

[0030] like Figure 2 As shown, the signal acquisition module 300 includes a strain monitoring element 310, a signal acquisition board 320, a voltage regulator and rectifier assembly 330, and a built-in power supply 340. The strain monitoring element 310 is disposed on the outer periphery of the tool holder shaft 100. In order to monitor the strain type, the strain monitoring element 310 can use strain gauges of various bridging methods, sizes, and types to realize the testing of other process quantity signals such as pressure, torque, lateral force, and side force of the tool holder shaft 100. The specific bridging method, bonding angle, and strain gauge model parameters are not limited. In the embodiment, the strain monitoring element 310 is bonded to the thinnest end of the tool holder shaft 100 (i.e., the variable diameter section 120) with glue and compacted to ensure the linearity of deformation testing. At the same time, the bonding method and glue type used are not limited. When the strain monitoring device 310 detects deformation, it will collect strain-related information such as pressure, torque, lateral force, and side force through the signal acquisition board 320, and process the data information simultaneously. Finally, it will send the data to the PC or PLC. The data can be presented as a high-frequency digital signal (20kHz) transmitted to the host computer software in the form of scatter points or curves, or as an analog quantity (voltage or current) transmitted to the machining equipment 900. These two modes allow users to monitor the pressure, torque, lateral force, and side force on the tool holder shaft 100 in real time, and will drive the closed-loop control of data monitoring.

[0031] like Figure 2 As shown, the signal acquisition board 320 is disposed inside the housing 200. The signal acquisition board 320, the voltage regulator and rectifier assembly 330, and the built-in power supply 340 can all rotate synchronously with the tool holder shaft 100 and the housing 200. The signal acquisition board 320 is electrically connected to the strain monitoring device 310 through wires. The signal acquisition board 320 acquires the strain signal of the strain monitoring device 310. The signal acquisition board 320 can transmit the signal to an external system via wired or wireless means.

[0032] like Figure 2As shown, the voltage regulator and rectifier assembly 330 is disposed within the housing 200. The voltage regulator and rectifier assembly 330 is connected to the rotor coil 410 of the power supply module 400 via wires. The current output from the rotor coil 410 will pass through the voltage regulator and rectifier assembly 330. The voltage regulator and rectifier assembly 330 includes a rectifier bridge, a filter, and a voltage regulator chip. Referring to existing technology, its function is to rectify, filter, and regulate the output current. Specifically, the rectifier bridge converts low-voltage AC power into DC current; the filter filters the DC current; and the filtered current still... There are some fluctuations, but after passing through the voltage regulator chip, the current and voltage can be stabilized within a range suitable for use by subsequent modules. As a result, the voltage regulator and rectifier component 330 outputs a stable DC voltage below 12V. This voltage will be connected to the built-in power supply 340 via a wire. The built-in power supply 340 is located inside the housing 200. The built-in power supply 340 is electrically connected to the signal acquisition board 320 via a wire, which can enable the signal acquisition board 320 to provide stable power for the synchronous high-frequency acquisition of multiple signals (process signals such as pressure, torque, lateral force and side force).

[0033] like Figure 3 As shown, in some preferred embodiments, the signal acquisition module 300 further includes a power display screen 350, which is disposed on the housing 200 and exposed on the outside of the housing 200, so that external personnel can easily observe the power status. The power display screen 350 is electrically connected to the built-in power supply 340 through wires and can display the remaining power of the built-in power supply 340.

[0034] like Figure 2 and Figure 4 As shown, the power supply module 400 includes a rotor coil 410 and a stator magnet 420. The rotor coil 410 is connected to the housing 200, specifically, the rotor coil 410 and the housing 200 are coaxially fixedly connected, so that the rotor coil 410 and the housing 200 can rotate together. The current generated by the rotor coil 410 passes through the voltage regulator and rectifier assembly 330 and finally supplies power to the signal acquisition board 320. The stator magnet 420 is disposed on one side of the rotor coil 410. The stator magnet 420 can cooperate with the rotor coil 410 through electromagnetic induction. When the rotor coil 410 rotates, it can cut the magnetic field generated by the stator magnet 420 and generate induced electromotive force and alternating current, thereby providing stable power to the signal acquisition board 320.

[0035] like Figure 4 As shown, the speed sensor 500 is disposed on one side of the tool holder shaft 100, and the speed sensor 500 and the tool holder shaft 100 are radially corresponding to each other. The speed sensor 500 can monitor the rotational speed of the tool holder shaft 100. In this embodiment, the speed sensor 500 is located above the stator magnet 420.

[0036] like Figure 4 As shown, the machining tool holder in this embodiment also includes a drive mechanism 600. The drive mechanism 600 is disposed on the radial side of the tool holder shaft 100. The output end of the drive mechanism 600 is connected to the stator magnet 420. The drive mechanism 600 can drive the stator magnet 420 to move closer to or further away from the rotor coil 410 in the radial direction of the tool holder shaft 100, thereby adjusting the strength of the magnetic field and thus adjusting the power generation.

[0037] like Figure 4 As shown, in some preferred embodiments, the speed sensor 500 is connected to the drive mechanism 600. When the actual speed of the tool holder shaft 100 is lower than the minimum speed (set by the operator), the drive mechanism 600 drives the stator magnet 420 to move radially closer to the rotor coil 410 on the tool holder shaft 100. Conversely, when the actual speed of the tool holder shaft 100 is higher than or equal to the minimum speed, the stator magnet 420 remains in the same position until the machining operation is completed. In this embodiment, the actual speed of the tool holder shaft 100 is used as a reference standard. During actual machining, the user selects a suitable speed according to the requirements. The power supply module 400 will be activated simultaneously to provide power to the signal acquisition module 300. At low speeds, the distance between the stator magnet 420 and the rotor coil 410 is adjusted to increase power generation, enabling the signal acquisition module 300 to acquire signals stably and at high frequencies (e.g., above 20kHz).

[0038] In some preferred embodiments, the drive mechanism 600 is configured as an electric push rod or a linear module. The drive mechanism 600 can also be other existing electrically driven telescopic mechanisms. In this embodiment, the drive mechanism 600 is configured as an electric push rod, the telescopic end of which is connected to the stator magnet 420, and the telescopic direction of the electric push rod is consistent with the radial direction of the tool holder shaft 100.

[0039] like Figure 4 As shown, in this embodiment, the machining tool holder also includes a control unit 700, which is connected to the speed sensor 500 and the drive mechanism 600 via wires. During actual machining, the control unit 700 performs logical judgments. When the actual speed of the tool holder shaft 100, as displayed in real time by the control unit 700, is lower than the minimum speed, the control unit 700 issues a command to control the drive mechanism 600 to adjust the position of the stator magnet 420. Conversely, if the speed is higher than the minimum speed, the control unit 700 does not react, and the stator magnet 420 remains in its original position until the machining operation is completed.

[0040] like Figure 4As shown, in some embodiments, the machining tool holder also includes an external power supply 800. The external power supply 800 is electrically connected to the drive mechanism 600 and the control unit 700 via wires. The control unit 700 controls whether the external power supply 800 supplies power to the drive mechanism 600, thereby controlling the extension and retraction of the drive mechanism 600. In some preferred embodiments, the external power supply 800 can also be integrated into the control unit 700, that is, the external power supply 800 is part of the control unit 700, and the control unit 700 directly controls the action of the extension and retraction mechanism. This embodiment does not limit this, as long as the control unit 700 can control the extension and retraction of the drive mechanism 600 according to the rotational speed of the tool holder shaft 100.

[0041] like Figure 5 As shown, this embodiment also discloses a rotary power supply machining equipment. The machining equipment 900 includes a main body 910, a cutting tool 920, and a machining tool holder.

[0042] The spindle of the machining equipment 900 is connected to the tool holder shaft 100 of the machining tool holder. Specifically, the upper ends of the spindle and the tool holder shaft 100 are connected by a pull stud, and the spindle can drive the tool holder shaft 100 to rotate coaxially. The lower end of the tool holder shaft 100 is connected to the cutting tool 920. In this embodiment, the cutting tool 920 can be a machining tool, a friction welding stirring head, etc., and this embodiment is not limited to this. In some preferred embodiments, the cutting tool 920 is locked to the tool holder shaft 100 by an existing locking tool, which can be easily disassembled and assembled.

[0043] In some embodiments, a connecting frame 930 is provided on the main body 910 of the device, and the stator magnet 420 of the power supply module 400 is movably disposed on the connecting frame 930. The moving direction of the stator magnet 420 is configured in the radial direction of the tool holder shaft 100. The way in which the stator magnet 420 is movably disposed on the connecting frame 930 can refer to the prior art. For example, the connecting frame 930 is provided with a slide groove, and the stator magnet 420 is slidably disposed in the slide groove. Another example is that the connecting frame 930 is provided with a slider, which can slide in the radial direction of the tool holder shaft 100, and the stator magnet 420 is disposed on the slider. In addition, other arrangements that can realize the radial movement of the stator magnet 420 relative to the connecting frame 930 on the tool holder shaft 100 are also possible. For example, the stator magnet 420 is disposed on the telescopic end of the drive mechanism 600, the fixed end of the drive mechanism 600 is disposed on the connecting frame 930, and the telescopic direction of the drive mechanism 600 is configured in the radial direction of the tool holder shaft 100.

[0044] In this embodiment, the drive mechanism 600 ( Figure 5The drive mechanism 600 (not shown) is fixedly mounted on the connecting frame 930. The telescopic end of the drive mechanism 600 is connected to the stator magnet 420, and the drive mechanism 600 drives the stator magnet 420 to move. In some preferred embodiments, the speed sensor 500 is fixedly mounted on the connecting frame 930, and the speed sensor 500 faces the tool holder shaft 100. The speed sensor 500 is used to monitor the speed of the tool holder shaft 100.

[0045] In some preferred embodiments, the machining equipment 900 further includes a receiver (not shown) and a host computer (not shown). The receiver is communicatively connected to the host computer and the signal acquisition board 320 of the signal acquisition module 300, and is also communicatively connected to the main body 910 of the equipment.

[0046] The host computer and receiver are connected via a Type-C cable or other types of data cable. The host computer is used as a data receiving end to display the signals collected by the processing signal acquisition board 320 in real time. The host computer software can present the evolution curve of the collected signals (pressure, torque, lateral force, side force, etc.) over time. At the same time, the user can display the data in the form of scatter plot or jump numbers as needed.

[0047] In this embodiment, the user can perform basic analysis and post-processing within the host computer software, including curve filtering, FFT processing of three-dimensional vibration signals, data export, etc. The filtering method used here is not limited.

[0048] In this embodiment, the receiver is used as a receiving relay to convert digital signals into analog signals, which are then transmitted to the main body of the device 910 to reversely regulate specific processing parameters and drive closed-loop control. The transmission frequency of the analog signals is as high as 5120Hz, and the transmission distance can reach 400m indoors and 2km outdoors. At the same time, the output analog signals can be either voltage (0-3V) or current (4-20mA), without specific limitations.

[0049] In this embodiment, on the one hand, the host computer software acts as a data receiving end, displaying the signals collected during the processing in real time. The host computer software can present the evolution curve of the collected signals over time, and the user can display the data in the form of scatter plots or jumping numbers as needed. On the other hand, the receiver can act as a receiving relay end, converting digital signals into analog signals and transmitting them to the main body 910 of the machining equipment 900 to reversely regulate specific processing parameters and drive closed-loop control, which can provide effective technical guidance for the visualization and intelligentization of processing production.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rotary power supplied machining tool holder, characterized by, The tool shank shaft (100), the shell (200), the signal acquisition module (300), the power supply module (400) and the rotating speed sensor (500) are included. The shell (200) is arranged on the tool shank shaft (100). The signal acquisition module (300) includes a strain monitoring member (310), a signal acquisition board (320), a voltage stabilizing and rectifying assembly (330) and a built-in power supply (340); the strain monitoring member (310) is arranged on the tool shank shaft (100); the signal acquisition board (320), the voltage stabilizing and rectifying assembly (330) and the built-in power supply (340) are all arranged in the shell (200), the signal acquisition board (320) is connected with the built-in power supply (340) and the strain monitoring member (310) respectively, and the voltage stabilizing and rectifying assembly (330) is connected with the built-in power supply (340) and the power supply module (400) respectively. The power supply module (400) includes a rotor coil (410) and a stator magnet (420); the rotor coil (410) is connected with the shell (200), and the voltage stabilizing and rectifying assembly (330) is connected with the rotor coil (410); the stator magnet (420) is electromagnetically inductive with the rotor coil (410). The rotating speed sensor (500) is matched with the tool shank shaft (100) and is used for monitoring the rotating speed of the tool shank shaft (100).

2. The machine tool holder according to claim 1, characterized in that The tool shank shaft (100) is provided with a shaft shoulder (110); the top surface of the shell (200) is attached to the shaft shoulder (110).

3. The machine tool holder according to claim 2, characterized in that The shell (200) is connected with the tool shank shaft (100) through a threaded member.

4. The machine tool holder according to claim 1, characterized in that The signal acquisition module (300) further includes an electric quantity display screen (350), which is arranged on the shell (200); the electric quantity display screen (350) is connected with the built-in power supply (340).

5. The machine tool holder according to any one of claims 1 to 4, characterized in that A driving mechanism (600) is further included; the driving mechanism (600) is connected with the stator magnet (420), and the driving mechanism (600) can drive the stator magnet (420) to move towards or away from the rotor coil (410) in the radial direction of the tool shank shaft (100); the rotating speed sensor (500) is connected with the driving mechanism (600).

6. The machine tool holder according to claim 5, characterized in that The driving mechanism (600) is configured as an electric push rod or a linear module.

7. The machine tool holder according to claim 5, characterized in that A control unit (700) is further included; the control unit (700) is connected with the rotating speed sensor (500) and the driving mechanism (600) respectively.

8. The machine tool holder according to claim 7, characterized in that An external power supply (800) is further included; the external power supply (800) is connected with the driving mechanism (600) and the control unit (700) respectively.

9. A rotary powered machine tool, characterized by The device main body (910), the tool (920) and the machining tool shank as claimed in any one of claims 1 to 8 are included; one end of the tool shank shaft (100) is connected with the main shaft of the device main body (910), and the other end is connected with the tool (920).

10. The machine tooling apparatus of claim 9, wherein, One side of the device main body (910) is provided with a connecting frame (930), and the stator magnet (420) is movably arranged on the connecting frame (930); the driving mechanism (600) is connected on the connecting frame (930).

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