Precise milling cutting tool clamping device applying heavy metal damping unit for vibration reduction

Abstract

The utility model relates to a precise milling cutting tool clamping device using a heavy metal damping unit for vibration reduction, which comprises a milling cutting tool clamping device, a locking block, a hydraulic chuck, a damping assembly, a magneto-rheological vibration reduction module and a wireless charging module, the milling cutting tool clamping device is internally provided with a containing cavity, the damping assembly is mounted on the right side of the containing cavity, and the magneto-rheological vibration reduction module is mounted on the right side of the containing cavity. According to the machine tool, the situation that the matching faces among all parts of the machine tool are damaged due to vibration can be reduced, so that the machining precision is improved, and by reducing damage to the machine tool due to vibration, the threat to the personal safety of operators due to damage to the machine tool due to vibration can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of milling tool clamping devices, and in particular to a damping and anti-vibration milling tool clamping device, and belongs to the field of mechanical processing and manufacturing. Background Art

[0002] In the process of machining with machine tools, we often encounter difficult-to-machine situations such as deep holes and deep grooves. At this time, the length-to-diameter ratio of the machining tool must be larger than that of ordinary tools. Tools with too large a length-to-diameter ratio are very likely to vibrate during high-speed rotation, which can easily lead to increased tool wear and reduced surface quality of the machined parts, and sometimes even cause the tool to bend and break. At the same time, vibration will also cause stress on the surface and inside of the parts during the cutting process, which may affect the strength and stability of the parts. In addition, vibration will damage the mating surfaces between the various components of the machine tool, resulting in a decrease in machining accuracy. In severe cases, the machine tool will be unable to perform cutting processing, and sometimes even pose a threat to the personal safety of the operator. The various problems caused by the above vibration need to be studied and solved. Summary of the invention

[0003] The problem to be solved by the patent of this invention is to provide a precision milling tool clamping device that uses a heavy metal damping unit for vibration reduction, which is used to solve the vibration problem of the milling tool clamping device.

[0004] The technical solution provided by the patent of the present invention to solve the above problems is: a precision milling tool clamping device using a heavy metal damping unit for vibration reduction, including a milling tool clamping device, a locking block, a hydraulic chuck, a damping component, a magnetorheological vibration reduction module, and a wireless charging module, wherein a receiving chamber is provided inside the milling tool clamping device, a damping component is installed on the right side of the receiving chamber, and the damping component is installed on the right end of the receiving chamber from left to right in the order of damping rubber plug, damping rubber, vibration reduction core, damping rubber, and damping rubber plug, leaving a certain gap between the damping core and the receiving chamber, and the gap is filled with damping oil, wherein the damping oil is magnetic damping oil. A locking block is installed on the left end face of the damping component, and a magnetorheological vibration reduction module is provided inside the locking block, and the magnetorheological vibration reduction module includes a chip, an electromagnetic coil and a coil. The outer periphery of the locking block is provided with threads, which are threadedly connected with the inner wall of the accommodating cavity. The right end face of the locking block abuts against the damping rubber plug to limit the damping rubber plug. The left end of the locking block is provided with a groove, and a radio charging module is embedded in the groove. The radio charging module is connected to the magnetorheological vibration reduction module through a wire, and the wire is connected to the magnetorheological vibration reduction module through a small hole punched on the locking block. The electromagnetic coil in the magnetorheological vibration reduction module bypasses the damping rubber plug and enters the gap between the shock absorbing core and the inner wall of the accommodating cavity. The chip can control the frequency of the current flowing through the electromagnetic coil by receiving the damping value sent by the mobile phone Bluetooth, thereby generating a magnetic field in the electromagnetic coil to hinder the movement of the damping oil to a certain extent, thereby causing the damping force generated by the movement of the damping oil to change, so that the damping value inside the milling tool clamping device can reach a preset value. The right end of the tool is a hydraulic chuck. The depth of the pressure bolt screwed in causes the oil in the annular cavity to generate a huge corresponding pressure. The pressure ensures the cleanliness of the inner wall of the clamping hole by squeezing the remaining part of the lubricant into the annular cavity, ensuring the reliable transmission of the torque. The clamping hole can transmit the high oil pressure to the oil cavity. Pressurizing the oil in the oil cavity can evenly transmit the oil pressure to all parts of the oil cavity and cause the expansion wall to expand. The expansion wall can generate the required expansion amount when the oil pressure reaches a certain value, thereby realizing the clamping or disassembly of the tool.

[0005] 1. In a preferred embodiment, it includes a milling tool clamping device, a damping assembly, and a magnetorheological vibration reduction module. A accommodating chamber is provided inside the milling tool clamping device, and a damping assembly is provided inside the accommodating chamber. The damping assembly includes a damping rubber plug, a damping rubber, and a vibration reduction core. The damping rubber plug, the damping rubber, the vibration reduction core, the damping rubber, and the damping rubber plug are installed inside the accommodating chamber in this order, wherein the right end face of the damping assembly contacts the left end of the accommodating chamber, the magnetorheological vibration reduction module is installed inside the locking block, and the wireless charging module is installed in the groove at the left end of the locking block. The left end of the milling tool clamping device is a hydraulic chuck, which can be used to install a tool. The outer side of the right end of the milling tool clamping device is provided with a thread, which can be threadedly connected with a BT series milling tool clamping device or an HSK series milling tool clamping device.

[0006] 2. In a preferred embodiment, the damping oil is a magnetic damping oil, and its flow can be affected by the magnetic field generated by the continuously changing current flowing through the electromagnetic coil.

[0007] 3. In a preferred embodiment, the outer side of the locking block is provided with a thread, which can be threadedly connected to the accommodating cavity, and the inner side of the locking block can be installed with a magnetorheological vibration reduction module, and the left end face thereof is provided with a groove, which can be installed with a wireless charging module.

[0008] 4. In a preferred embodiment, the wireless charging module is connected to the magnetorheological vibration reduction module through a wire, and the magnetorheological vibration reduction module includes a chip, a battery and a coil, and the coil bypasses the damping rubber plug and penetrates into the vicinity of the vibration reduction core.

[0009] 5. In a preferred embodiment, the vibration damping core is made of heavy metal molybdenum.

[0010] 6. In a preferred embodiment, the milling tool clamping device is made of 20CrMnTi.

[0011] 7. In a preferred embodiment, the gap between the vibration-damping core and the accommodating cavity is filled with damping oil.

[0012] 8. In a preferred embodiment, the vibration-damping core can rotate around an axis in the damping rubber.

[0013] The beneficial effects of the present invention are:

[0014] By adding a resistance component and a magnetorheological vibration reduction module to the inside of the milling tool clamping device, and using magnetic damping oil, the electromagnetic coil in the magnetorheological vibration reduction module bypasses the damping rubber plug and enters the gap between the damping core and the inner wall of the accommodating cavity. The chip can control the frequency of the current flowing through the electromagnetic coil by receiving the damping value sent by the mobile phone Bluetooth, thereby generating a magnetic field in the electromagnetic coil to hinder the movement of the damping oil to a certain extent, thereby causing the damping force generated by the movement of the damping oil to change, so that the resistance value inside the milling tool clamping device can reach a pre-set value, so that the milling tool clamping device can better reduce vibration when processing different parts, reduce the wear of the tool and improve the surface quality of the processed parts, and greatly reduce the accidents of tool bending and fracture. At the same time, it also reduces the stress generated on the surface and inside of the parts during the cutting process caused by vibration, thereby improving the strength and stability of the parts. In addition, the patent of the present invention can also reduce the occurrence of damage to the mating surfaces between the various parts of the machine tool caused by vibration, thereby improving the processing accuracy, and by reducing the damage to the machine tool caused by vibration, it can reduce the threat to the personal safety of the operator caused by damage to the machine tool due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a cross-sectional view of an adjustable damping and vibration-reducing hydraulic milling tool clamping device according to an embodiment of the present invention;

[0017] Figure markings: 1-milling tool clamping device; 2-locking block; 3-damping rubber plug; 4-damping rubber; 5-vibration damping core; 6-hole cavity; 7-pressure bolt; 8-oil cavity; 9-expansion wall; 10-clamping hole; 11-annular cavity; 12-magnetorheological vibration damping module; 13-groove; 14-oil filling hole; 15-wireless charging module; 16-accommodating cavity; 17-BT50. DETAILED DESCRIPTION

[0018] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention, so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0019] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the drawings.

[0020] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments, not for limiting the present invention. The term "and / or" used herein includes any combination of one or more related listed items.

[0021] The specific embodiment of the present invention is shown in the accompanying drawings, an adjustable damping and vibration reduction hydraulic milling tool clamping device, including 1-milling tool clamping device; 2-locking block; 3-damping rubber plug; 4-damping rubber; 5-damping core; 6-hole cavity; 7-pressure bolt; 8-oil cavity; 9-expansion wall; 10-clamping hole; 11-annular cavity; 12-magnetorheological vibration reduction module; 13-groove; 14-oil filling hole; 15-wireless charging module; 16-accommodating cavity; 7-BT50

[0022] Among them, (1) is provided with (16), (16) is provided with a damping assembly inside, and the damping assembly includes (3), (4), (5), wherein (3), (4), (5) are installed on the right side of (16) in (1) in the order of (3), (4), (5), (4), (3) from left to right, and the right end face of the damping assembly is provided with (2), the outer surface of (2) is threadedly connected with (16), and its right end face is bottom-connected with (3), and the left end face of the damping assembly (2) is provided with (13) by tightening, (13) is installed with (15), and (2) is also installed with (12), wherein (15) and (12) are connected by a wire. The wires are connected to (15) and (12) through the small holes on (2), wherein (12) includes a chip, a battery and an electromagnetic coil, and the electronic coil extends from the outer circumferential surface of (3) into the gap between (5) and (16). The middle part of (1) is punched with (14) along the axial direction, and a hole plug is provided inside (14) to prevent leakage of damping oil. The right end of (1) is a hydraulic chuck, and (6) is punched along the axial radial direction of (1). (7) is installed in (6), and (7) is installed in (6) through threads. (11) is provided at the bottom of (7), and (11) is connected to (8) through (10). At the same time, (9) is provided on the inner side of (8).

[0023] In this embodiment, the periphery of (3) is in contact with (16) and is restricted by (2) inside (16), (4) is embedded in (3) and sleeved on the outer circumference of (5), (4) and (5) can slide relative to each other, and during the machining process of the milling tool clamping device, (5) can also rotate with it, thereby generating a large inertia. The gap between (5) and (16) is filled with magnetic damping oil.

[0024] Wherein, the (5) is made of heavy metal damping, and is supported inside (16) through (3) and (4), so that when the tool at the front end of the milling tool clamping device vibrates and deforms during the cutting process, it can immediately offset the vibration due to its own frequency being opposite to the frequency of the front end of the milling tool clamping device. (3) and (4) are made of rubber, which can convert part of the vibration into mechanical energy through elastic deformation, and then convert the mechanical energy into heat energy and dissipate it to consume the energy of the vibration, thereby offsetting the radial component vibration. (3) can also convert part of the vibration into mechanical energy through the deformation of its central part to a certain extent, and then convert this part of the mechanical energy into heat energy and dissipate it to offset the axial component vibration.

[0025] In this embodiment, when vibration is transmitted, (3) will undergo elastic deformation, thereby causing the relative positions of (3), (4) and (5) to change, thereby causing the damping oil to flow in the gap between (5) and (16). The energy generated by the flow of the damping oil in the gap is used to consume the energy of the vibration, thereby further offsetting the vibration.

[0026] In order to achieve the regulation of the damping value, (13) is provided at the left end of (2), (15) is embedded in the recess (13), (16) is connected to the magnetorheological damping module through a wire, and the wire is connected to (12) through a small hole punched on (2). The electromagnetic coil in (12) bypasses (3) and enters the gap between the inner walls of (5) and (16). The chip can control the frequency of the current flowing through the electromagnetic coil by receiving the damping value sent by the mobile phone Bluetooth, thereby generating a magnetic field in the electromagnetic coil to hinder the movement of the damping oil to a certain extent, thereby causing the damping force generated by the movement of the damping oil to change, so that the resistance value inside the milling tool clamping device can reach a preset value.

[0027] In this embodiment, the right end of the milling tool clamping device is a hydraulic chuck. The depth of screwing (7) causes the high-pressure oil in (11) to generate a corresponding huge pressure, wherein the pressure ensures the cleanliness of the inner wall of (10) by squeezing the remaining part of the lubricant into (11), ensuring the reliable transmission of torque. (10) can transmit the high oil pressure to (8), and the high-pressure oil in (8) can evenly transmit the oil pressure to various parts of (8) and promote the expansion of (9). The said (9) can generate the required expansion amount when the oil pressure reaches a certain value, thereby realizing the clamping or disassembly of the tool.

[0028] Among them, since (8) is filled with high-pressure oil, the movement of the high-pressure oil during the processing of the milling tool clamping device can also offset part of the vibration, thereby improving the processing accuracy of the milling tool clamping device.

[0029] In this embodiment, the left end of the milling tool clamping device can be threadedly connected to the BT series milling tool clamping device or the HSK series milling tool clamping device. The right end is used to clamp the tool. When the milling tool clamping device is threadedly connected to the BT series milling tool clamping device or the HSK series milling tool clamping device, it can be installed on the spindle of the machine tool. Then, you only need to connect it with a mobile phone through Bluetooth and enter the required damping value on the mobile phone interface to adjust the damping value of the milling tool clamping device. It will not be changed until the next time the mobile phone is connected to Bluetooth again. The user can not only change the resistance value of the milling tool clamping device on the mobile phone client, but the client will also display the remaining battery power of the milling tool clamping device to facilitate prompting and charging when the power is low. When the milling tool clamping device is charged, it only needs to be placed on the corresponding wireless charging sensor to charge. After the milling tool clamping device is charged, the mobile phone connected to it by Bluetooth will automatically prompt the operator that the milling tool clamping device has been charged.

[0030] The above is only a preferred embodiment of the present invention. The above embodiments of the present invention are only examples for clearly explaining the present invention, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that several different forms of changes or improvements can be made on the basis of the above description. It is not necessary and impossible to list all the embodiments here. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall fall within the scope of protection of the patent of the present invention.

Claims

1. A precision milling tool clamping device using a heavy metal damping unit for vibration reduction, characterized in that: It includes a milling tool clamping device, a damping component, and a magnetorheological vibration reduction module. A accommodating cavity is arranged inside the milling tool clamping device, and a damping component is arranged inside the accommodating cavity. The damping component includes a damping rubber plug, a damping rubber and a vibration reduction core. The damping rubber plug, the damping rubber, the vibration reduction core, the damping rubber and the damping rubber plug are installed inside the accommodating cavity in this order, wherein the right end face of the damping component contacts the left end of the accommodating cavity, the magnetorheological vibration reduction module is installed inside the locking block, and the wireless charging module is installed in the groove at the left end of the locking block. The left end of the milling tool clamping device is a hydraulic chuck, which can be used to install a tool. The outer side of the right end of the milling tool clamping device is provided with a thread, which can be threadedly connected with a BT series milling tool clamping device or an HSK series milling tool clamping device.

2. A precision milling tool clamping device using a heavy metal damping unit for vibration reduction according to claim 1, characterized in that: The damping oil is a magnetic damping oil, and its flow can be affected by the magnetic field generated by the constantly changing current flowing through the electromagnetic coil.

3. The precision milling tool clamping device using a heavy metal damping unit for vibration reduction according to claim 1, characterized in that: The outer side of the locking block is provided with a thread, which can be threadedly connected to the accommodating cavity. The inner side of the locking block can be installed with a magnetorheological vibration reduction module. The left end face is provided with a groove, which can be installed with a wireless charging module.

4. The precision milling tool clamping device using a heavy metal damping unit for vibration reduction according to claim 1, characterized in that: The wireless charging module is connected to the magnetorheological vibration reduction module through a wire. The magnetorheological vibration reduction module includes a chip, a battery and a coil. The coil bypasses the damping rubber plug and penetrates into the vicinity of the vibration reduction core.

5. The precision milling tool clamping device using a heavy metal damping unit for vibration reduction according to claim 1, characterized in that: The vibration reduction core is made of heavy metal damping.

6. The precision milling tool clamping device using a heavy metal damping unit for vibration reduction according to claim 1, characterized in that: The milling tool clamping device is made of 20CrMnTi.

7. A precision milling tool clamping device using a heavy metal damping unit for vibration reduction according to claim 1, characterized in that: The gap between the vibration-damping core and the accommodating cavity is filled with damping oil.

8. The precision milling tool clamping device using a heavy metal damping unit for vibration reduction according to claim 1, characterized in that: The vibration-damping core can rotate around an axis in the damping rubber.

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