Magnetic suspension internal thread copper tube processing equipment

Abstract

The present application relates to a magnetic suspension internal thread copper tube processing equipment, which includes a shell and a magnetic suspension device arranged in the shell; the magnetic suspension device includes: a magnetic suspension processing spindle, a magnetic suspension control device, a tool head and a gas cooling component; the magnetic suspension processing spindle is provided with a transmission cavity; the magnetic suspension control device includes a magnetic suspension bearing module and a motor; the magnetic suspension bearing module is sleeved on the magnetic suspension processing spindle; the motor is sleeved on the magnetic suspension processing spindle; the tool head is arranged at the front end of the magnetic suspension processing spindle; the central axis of the tool head overlaps with the central axis of the transmission cavity; the gas cooling component includes an airflow input interface and a gas output interface for connecting the gas supply device; the airflow input interface is arranged on the first input through hole of the shell; the airflow output interface is arranged on the first output through hole of the shell. The magnetic suspension internal thread copper tube processing equipment of the present application has low cost, small size, low later maintenance cost, and high processing efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of internal thread copper tube processing, and in particular to a magnetic suspension internal thread copper tube processing device. Background Art

[0002] As an efficient heat transfer element, the internal thread copper tube can be widely used in the condenser and evaporator of refrigeration systems such as air conditioners and refrigerators. With the continuous improvement and progress of internal thread forming technology, the overall development trend of internal thread copper tubes is towards thin walls, high teeth, small weight, small diameter and efficient heat transfer. At present, the traditional equipment used for copper tube internal thread processing is usually high in cost, large in size, high in later maintenance costs, and low in processing efficiency.

[0003] During the implementation process, the inventors found that there are at least the following problems in the traditional technology: the traditional equipment used for processing the internal threads of copper tubes is usually high in cost, large in size, has high subsequent maintenance costs, and has low processing efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a magnetic levitation internal thread copper tube processing equipment to address the problems that traditional equipment used for copper tube internal thread processing is usually high in cost, large in size, high in subsequent maintenance costs, and low in processing efficiency.

[0005] In order to achieve the above-mentioned object, an embodiment of the present invention provides a magnetic suspension internal thread copper tube processing device, including a shell and a magnetic suspension device arranged in the shell; the magnetic suspension device includes:

[0006] A magnetic suspension processing spindle, wherein the magnetic suspension processing spindle is provided with a transmission cavity for transmitting the copper tube to be processed;

[0007] The magnetic suspension control device includes a magnetic suspension bearing module for driving the magnetic suspension processing spindle to suspend, and a motor for controlling the rotation of the magnetic suspension processing spindle; the magnetic suspension bearing module is sleeved on the magnetic suspension processing spindle; the stator of the motor is sleeved on the magnetic suspension processing spindle;

[0008] The tool head is arranged at the front end of the magnetic suspension processing spindle and is driven to rotate by the magnetic suspension processing spindle; the tool head is used to perform internal thread processing on the copper tube to be processed; the central axis of the tool head overlaps with the central axis of the transmission cavity;

[0009] A gas cooling assembly, the gas cooling assembly comprising a gas flow input interface for connecting to a gas supply device, and a gas output interface for connecting to the gas supply device;

[0010] The shell is provided with a first input through hole and a first output through hole; the airflow input interface is provided on the first input through hole; and the airflow output interface is provided on the first output through hole.

[0011] In one embodiment, it also includes:

[0012] A liquid cooling assembly, the liquid cooling assembly comprising a liquid flow channel component sleeved on the stator of the motor, a liquid input interface for connecting to a liquid supply device, and a liquid output interface for connecting to the liquid supply device;

[0013] The shell is provided with a second input through hole and a second output through hole; the liquid input interface is provided on the second input through hole; and the liquid output interface is provided on the second output through hole.

[0014] In one embodiment, the liquid flow channel component is provided with at least one liquid transfer channel.

[0015] In one embodiment, further comprising a clamp;

[0016] The fixture is used to fix the tool head on the front end of the magnetic suspension machining spindle.

[0017] In one embodiment, the magnetic suspension bearing module includes a first auxiliary bearing sleeved on the front end of the magnetic suspension machining spindle, a second auxiliary bearing sleeved on the rear end of the magnetic suspension machining spindle, a first radial magnetic suspension bearing arranged near the first auxiliary bearing, and a second radial magnetic suspension bearing arranged near the second auxiliary bearing;

[0018] The first radial magnetic suspension bearing and the second radial magnetic suspension bearing are respectively sleeved on the magnetic suspension processing spindle.

[0019] In one of the embodiments, the magnetic bearing module further includes an axial magnetic bearing assembly disposed between the second radial magnetic bearing and the second auxiliary magnetic bearing;

[0020] The axial magnetic suspension bearing assembly is used to control the axial suspension of the magnetic suspension machining spindle.

[0021] In one embodiment, the axial magnetic bearing assembly includes a thrust plate arranged on the magnetic suspension machining spindle, a first axial magnetic bearing block arranged between the second radial magnetic bearing and the thrust plate, and a second axial magnetic bearing block arranged between the thrust plate and the second auxiliary magnetic bearing.

[0022] In one of the embodiments, the magnetic bearing module further includes a magnetic bearing controller;

[0023] The magnetic suspension bearing controller is electrically connected to the first radial magnetic suspension bearing, the second radial magnetic suspension bearing and the axial magnetic suspension bearing assembly respectively.

[0024] In one embodiment, the diameter of the transmission cavity is larger than the diameter of the tool head.

[0025] In one embodiment, the motor is a synchronous motor or an asynchronous motor.

[0026] One of the above technical solutions has the following advantages and beneficial effects:

[0027] A transmission cavity is set based on the magnetic suspension processing spindle, and the copper tube to be processed can be transmitted through the transmission cavity; the magnetic suspension bearing module is sleeved on the magnetic suspension processing spindle; the motor is sleeved on the magnetic suspension processing spindle, and the rotation of the magnetic suspension processing spindle can be controlled by the motor, and the suspension of the magnetic suspension processing spindle is controlled by the magnetic suspension bearing module; the tool head is arranged at the front end of the magnetic suspension processing spindle, the central axis of the tool head overlaps with the central axis of the transmission cavity, and is driven to rotate by the magnetic suspension processing spindle, and then the copper tube to be processed can be processed by the tool head; the gas cooling component includes an airflow input interface for connecting the air supply device, and a gas output interface for connecting the air supply device, the airflow input interface is arranged on the first input through hole of the shell; the airflow output interface is arranged on the first output through hole of the shell, and then the air supply device can flow in through the airflow input interface and flow out from the airflow output interface, so as to realize the cooling of the magnetic suspension processing spindle and the magnetic suspension control device inside the shell. The magnetic suspension internal thread copper tube processing equipment of the present application has low cost, small size, low later maintenance cost and high processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of a first structural cross-section of a magnetic suspension internally threaded copper tube processing device in one embodiment;

[0029] Figure 2 A second structural cross-sectional schematic diagram of a magnetic suspension internally threaded copper tube processing device in one embodiment;

[0030] Figure 3 A third structural cross-sectional schematic diagram of a magnetic suspension internally threaded copper tube processing device in one embodiment;

[0031] Figure 4 It is a schematic diagram of the fourth structural cross-section of a magnetic suspension internal thread copper tube processing equipment in one embodiment. DETAILED DESCRIPTION

[0032] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] In order to solve the problem that the equipment used for processing the internal threads of copper tubes is usually high in cost, large in size, high in subsequent maintenance costs, and low in processing efficiency. Figure 1 As shown, a magnetic suspension internal thread copper tube processing device is provided, comprising a housing 10 and a magnetic suspension device 12 arranged in the housing; the magnetic suspension device 12 comprises:

[0035] A magnetic suspension processing spindle 110, wherein the magnetic suspension processing spindle 110 is provided with a transmission cavity 112 for transmitting the copper tube to be processed;

[0036] The magnetic suspension control device 120 includes a magnetic suspension bearing module 122 for driving the magnetic suspension processing spindle 110 to suspend, and a motor 124 for controlling the rotation of the magnetic suspension processing spindle 110; the magnetic suspension bearing module 122 is sleeved on the magnetic suspension processing spindle 110; the motor 124 is sleeved on the magnetic suspension processing spindle 110;

[0037] The tool head 130 is disposed at the front end of the magnetic suspension processing spindle 110 and is driven to rotate by the magnetic suspension processing spindle 110. The tool head 130 is used to perform internal thread processing on the copper tube to be processed. The central axis of the tool head 130 overlaps with the central axis of the transmission cavity 112.

[0038] A gas cooling assembly 140, the gas cooling assembly 140 includes a gas flow input interface 142 for connecting to a gas supply device, and a gas output interface 144 for connecting to the gas supply device;

[0039] The housing 10 is provided with a first input through hole and a first output through hole; the airflow input interface 142 is provided on the first input through hole; and the airflow output interface 144 is provided on the first output through hole.

[0040] Specifically, the housing 10 may be a metal housing. The size and shape of the housing 10 may be determined according to the size and shape of the magnetic suspension device 12. The magnetic suspension processing spindle 110 refers to a component that can be suspended and rotated; the magnetic suspension processing spindle 110 may be a cylindrical spindle. It should be noted that the magnetic suspension processing spindle 110 may include a rotor of a motor. The transmission cavity 112 may be used to transmit the copper tube to be processed, and then the copper tube to be processed may enter through the front end of the magnetic suspension processing spindle 110 provided with a tool head 130, and output from the rear end of the magnetic suspension processing spindle 110. In one example, the axial centerline of the transmission cavity 114 overlaps with the axial centerline of the magnetic suspension processing spindle 110.

[0041] The magnetic suspension bearing module 122 refers to the magnetic field generated by electromagnetic conversion, which makes the magnetic suspension processing spindle in a suspended state. The motor 124 can be used to control the rotation of the magnetic suspension processing spindle; the motor 124 includes a rotor and a stator, and the stator of the motor 124 is adjusted on the magnetic suspension processing spindle. It should be noted that the inner diameter of the stator of the motor 124 is larger than the outer diameter of the magnetic suspension processing spindle 110, so that when the magnetic suspension processing spindle 110 is suspended, there is no contact with the stator of the motor 124. The inner diameter of the magnetic suspension bearing module 122 is larger than the outer diameter of the magnetic suspension processing spindle 110, so that when the magnetic suspension processing spindle 110 is suspended, there is no contact with the stator of the motor 124.

[0042] The tool head 130 can be used to perform internal thread processing on the copper tube to be processed. The central axis of the tool head 130 overlaps with the central axis of the transmission cavity, and the inner diameter of the copper tube to be processed is larger than the outer diameter of the tool head 130, so that the copper tube to be processed can be processed by the tool head 130 for internal thread processing, and the processed copper tube to be processed is transmitted through the transmission cavity 114, and then output from the rear end of the magnetic suspension processing spindle 110. The airflow cooling component 140 may include an airflow input interface 142 and an airflow output interface 144, and the airflow input interface 142 may be provided on the first input through hole of the housing 10; the airflow output interface 144 may be provided on the first output through hole of the housing 10. It should be noted that the airflow cooling component 140 may also include an airflow channel connected between the airflow input interface 142 and the airflow output interface 144. The airflow channel may be a channel formed by gaps between various components inside the housing 10. By infusing airflow into the airflow channel, the magnetic suspension processing spindle 110 and the magnetic suspension control device 120 can be effectively cooled. The gas supply device can be used to provide power to transport gas to the gas cooling assembly.

[0043] Specifically, a transmission cavity 112 is provided based on the magnetic suspension processing spindle 110, and the copper tube to be processed can be transmitted through the transmission cavity 112; the magnetic suspension bearing module 122 is sleeved on the magnetic suspension processing spindle 110; the motor 124 is sleeved on the magnetic suspension processing spindle 110, and the rotation of the magnetic suspension processing spindle 110 can be controlled by the motor 124, and the suspension of the magnetic suspension processing spindle 110 can be controlled by the magnetic suspension bearing module 122; the tool head 130 is provided at the front end of the magnetic suspension processing spindle 110, and the central axis of the tool head 130 overlaps with the central axis of the transmission cavity 112, and is driven to rotate by the magnetic suspension processing spindle 110, and then The internal thread processing of the copper tube to be processed can be performed through the tool head 130; the gas cooling component 140 includes an airflow input interface 142 for connecting to the gas supply equipment, and a gas output interface 144 for connecting to the gas supply equipment, and the airflow input interface 142 is arranged on the first input through hole of the outer shell 10; the airflow output interface 144 is arranged on the first output through hole of the outer shell 10, and then the gas supply equipment can flow in through the airflow input interface 142 and flow out from the airflow output interface 144, thereby realizing the cooling of the magnetic levitation processing spindle 110 and the magnetic levitation control device 120 inside the outer shell 10, thereby improving the efficiency of the internal thread processing of the copper tube.

[0044] It should be noted that the diameter of the copper tube to be processed is smaller than the diameter of the transmission cavity.

[0045] The magnetic suspension internal thread copper tube processing equipment in the above embodiment has low cost, small size, low subsequent maintenance cost and high processing efficiency.

[0046] In a specific embodiment, the diameter of the transmission cavity is larger than the diameter of the tool head.

[0047] In one embodiment, Figure 2As shown, a magnetic suspension internal thread copper tube processing device is provided, which includes a housing 20 and a magnetic suspension device 22 arranged in the housing 20; the magnetic suspension device 22 includes: a magnetic suspension processing spindle 210, a magnetic suspension control device 220, a tool head 230 and a gas cooling component 240; the magnetic suspension processing spindle 210 is provided with a transmission cavity 212 for transmitting the copper tube to be processed; the magnetic suspension control device 220 includes a magnetic suspension bearing module 222 for driving the magnetic suspension processing spindle 210 to suspend, and a motor 224 for controlling the rotation of the magnetic suspension processing spindle 210; the magnetic suspension bearing module 222 is sleeved on the magnetic suspension processing spindle 210; the motor 224 is sleeved on the magnetic suspension processing spindle 210; the tool head 230 is arranged at the front end of the magnetic suspension processing spindle 210 and is driven to rotate by the magnetic suspension processing spindle 210; the tool head 230 is used to perform internal thread processing on the copper tube to be processed; the central axis of the tool head 230 overlaps with the central axis of the transmission cavity 212; the gas cooling assembly 240 includes an airflow input interface 242 for connecting to the gas supply device, and a gas output interface 244 for connecting to the gas supply device; wherein the housing 20 is provided with a first input through hole and a first output through hole; the airflow input interface 242 is arranged on the first input through hole; the airflow output interface 244 is arranged on the first output through hole. The processing equipment also includes a liquid cooling assembly 250; the liquid cooling assembly 250 includes a liquid flow channel component 252 sleeved on the stator of the motor 224, a liquid input interface 254 for connecting to the liquid supply device, and a liquid output interface 256 for connecting to the liquid supply device.

[0048] The housing 20 is provided with a second input through hole and a second output through hole; the liquid input interface 254 is provided on the second input through hole; and the liquid output interface 256 is provided on the second output through hole.

[0049] Specifically, the liquid cooling assembly 250 can be used to provide a channel for liquid transmission, and the flowing liquid is used to cool the stator of the motor 224. The liquid flow channel component 252 is sleeved on the stator of the motor 224, and the liquid flow channel component 252 is connected between the liquid input interface 254 and the liquid output interface 256. The liquid supply device is connected between the liquid input interface 254 and the liquid output interface 256, and then the liquid supply device can transmit cooling liquid to the liquid flow channel component 252 through the liquid input interface 254, and the cooling liquid flows back to the liquid supply device through the liquid output interface 256, thereby realizing liquid cooling of the stator of the motor 224, and effectively improving the working performance of the magnetic suspension internal thread copper tube processing equipment.

[0050] It should be noted that the liquid flow channel component 252 is a flow channel component with an annular structure.

[0051] In a specific embodiment, the liquid flow channel component is provided with at least one liquid transmission channel.

[0052] The liquid transmission channel refers to a channel that can transmit liquid.

[0053] In one example, the liquid flow channel component is provided with four liquid transmission channels, and the liquid supply device can sequentially input cooling liquid into the four liquid transmission channels through the liquid input interface, and return the cooling liquid to the liquid supply device through the liquid output interface. The heat of the motor stator is taken away by the cooling liquid, thereby cooling the motor stator and preventing the motor stator from overheating and causing failure.

[0054] In one embodiment, Figure 3 As shown, a magnetic suspension internal thread copper tube processing device is provided, the processing device comprises a housing 30 and a magnetic suspension device 32 arranged in the housing 30; the magnetic suspension device 32 comprises: a magnetic suspension processing spindle 310, a magnetic suspension control device 320, a tool head 330 and a gas cooling assembly 340; the magnetic suspension processing spindle 310 is provided with a transmission cavity 312 for transmitting the copper tube to be processed; the magnetic suspension control device 320 comprises a magnetic suspension bearing module 322 for driving the magnetic suspension processing spindle 310 to suspend, and a motor 324 for controlling the rotation of the magnetic suspension processing spindle 310; the magnetic suspension bearing module 322 is sleeved on the magnetic suspension processing spindle 310; the motor 324 24 is sleeved on the magnetic suspension processing spindle 310; the tool head 330 is arranged at the front end of the magnetic suspension processing spindle 310, and is driven to rotate by the magnetic suspension processing spindle 310; the tool head 330 is used to perform internal thread processing on the copper tube to be processed; the central axis of the tool head 330 overlaps with the central axis of the transmission cavity 312; the gas cooling assembly 340 includes an airflow input interface 342 for connecting to the gas supply device, and a gas output interface 344 for connecting to the gas supply device; wherein the housing 310 is provided with a first input through hole and a first output through hole; the airflow input interface 342 is arranged on the first input through hole; the airflow output interface 344 is arranged on the first output through hole. The magnetic suspension internal thread copper tube processing equipment also includes a fixture 350; the fixture 350 is used to fix the tool head 330 on the front end of the magnetic suspension processing spindle 310.

[0055] The fixture 350 can be used to fix the tool head 330 at the front end of the magnetic suspension processing spindle 310, and then the fixture 350 can rotate according to the rotation of the magnetic suspension processing spindle 310, so as to realize the internal thread processing of the copper tube to be processed.

[0056] Specifically, the magnetic suspension processing spindle 310 is controlled to rotate by the motor 324, the magnetic suspension bearing module 322 is used to control the magnetic suspension processing spindle 310 to suspend, the tool head 330 is fixed to the front end of the magnetic suspension processing spindle 310 by the fixture 350, and the magnetic suspension processing spindle 310 drives the tool head 330 to rotate, and then the tool head 330 can be used to process the internal thread of the copper tube to be processed, and the processed copper tube to be processed is transmitted through the transmission cavity and output through the rear end of the magnetic suspension processing spindle 310, so as to achieve fast and efficient internal thread processing of the copper tube. The airflow input interface 342 of the gas cooling component 340 is arranged on the first input through hole of the shell 30; the airflow output interface 344 of the gas cooling component 340 is arranged on the first output through hole of the shell 30, and then the gas supply device can flow in through the airflow input interface 342 and flow out from the airflow output interface 344, so as to achieve cooling of the magnetic suspension processing spindle 310 and the magnetic suspension control device 320 inside the shell. The magnetic suspension internal thread copper tube processing equipment of this embodiment has low cost, small size, low subsequent maintenance cost and high processing efficiency.

[0057] In one embodiment, Figure 4 As shown, a magnetic suspension internal thread copper tube processing equipment is provided, which includes a shell 40 and a magnetic suspension device 41 arranged in the shell 40; the magnetic suspension device 41 includes: a magnetic suspension processing spindle 410, a magnetic suspension control device 420, a tool head 430 and a gas cooling component 440; the magnetic suspension processing spindle 410 is provided with a transmission cavity 412 for transmitting the copper tube to be processed; the magnetic suspension control device 420 includes a magnetic suspension bearing module 422 for driving the magnetic suspension processing spindle 410 to suspend, and a motor 424 for controlling the rotation of the magnetic suspension processing spindle 410; the magnetic suspension bearing module 422 is sleeved on the magnetic suspension processing spindle 410; the motor 424 is sleeved on the magnetic suspension processing spindle 410; the tool head 430 is arranged at the front end of the magnetic suspension processing spindle 410, and is driven to rotate by the magnetic suspension processing spindle 410; the tool head 430 is used to perform internal thread processing on the copper tube to be processed; the central axis of the tool head 430 overlaps with the central axis of the transmission cavity 412; the gas cooling component 440 includes an airflow input interface 442 for connecting to the air supply equipment, and a gas output interface 444 for connecting to the air supply equipment; wherein, the shell 40 is provided with a first input through hole and a first output through hole; the airflow input interface 442 is arranged on the first input through hole; the airflow output interface 444 is arranged on the first output through hole.

[0058] The magnetic suspension bearing module 422 includes a first auxiliary bearing 462 sleeved on the front end of the magnetic suspension processing spindle 410, a second auxiliary bearing 464 sleeved on the rear end of the magnetic suspension processing spindle 410, a first radial magnetic suspension bearing 466 arranged near the first auxiliary bearing 462, and a second radial magnetic suspension bearing 468 arranged near the second auxiliary bearing 464. The first radial magnetic suspension bearing 466 and the second radial magnetic suspension bearing 468 are sleeved on the magnetic suspension processing spindle 410 respectively.

[0059] Specifically, the first auxiliary bearing 462 can be used to assist in supporting the magnetic suspension processing spindle 410, and reduce the friction coefficient of the magnetic suspension processing spindle 410 when the magnetic suspension internal thread processing equipment is shut down; the second auxiliary bearing 464 can be used to assist in supporting the magnetic suspension processing spindle 410, and reduce the friction coefficient of the magnetic suspension processing spindle 410 when the magnetic suspension internal thread processing equipment is shut down; it should be noted that the size of the first auxiliary bearing 462 is the same as the size of the second auxiliary bearing 464. The first radial magnetic suspension bearing 466 can be used to make the magnetic suspension processing spindle 410 radially suspended at the sleeve position, and the second radial magnetic suspension bearing 468 can be used to make the magnetic suspension processing spindle 410 radially suspended at the sleeve position.

[0060] Furthermore, based on the first auxiliary bearing 462 being arranged near the first end of the magnetic suspension processing spindle 410, and the second auxiliary bearing 464 being arranged near the second end of the magnetic suspension processing spindle 410, when the magnetic suspension internal thread copper tube processing equipment is shut down, the first auxiliary bearing 462 and the second auxiliary bearing 464 can protect the magnetic suspension processing spindle 410. Based on the first radial magnetic suspension bearing 466 arranged near the first auxiliary bearing 462, and the second radial magnetic suspension bearing 468 arranged near the second auxiliary bearing 464, the magnetic suspension control device 420 is powered on, and the magnetic suspension processing spindle 410 is radially suspended through the first radial magnetic suspension bearing 466 and the second radial magnetic suspension bearing 468, so as to produce a frictionless, contactless suspension equilibrium state, thereby achieving energy saving and emission reduction.

[0061] It should be noted that the inner diameter of the first radial magnetic bearing is larger than the outer diameter of the magnetic suspension machining spindle, and the inner diameter of the second radial magnetic bearing is larger than the outer diameter of the magnetic suspension machining spindle.

[0062] In a specific embodiment, the magnetic suspension bearing module further comprises an axial magnetic suspension bearing assembly disposed between the second radial magnetic suspension bearing and the second auxiliary magnetic suspension bearing. The axial magnetic suspension bearing assembly is used to control the axial suspension of the magnetic suspension machining spindle.

[0063] The axial magnetic suspension bearing assembly can be used to generate an axial suspension effect. In a specific embodiment, the axial magnetic suspension bearing assembly includes a thrust plate arranged on a magnetic suspension machining spindle, a first axial magnetic suspension bearing block arranged between the second radial magnetic suspension bearing and the thrust plate, and a second axial magnetic suspension bearing block arranged between the thrust plate and the second auxiliary magnetic suspension bearing.

[0064] It should be noted that the first axial magnetic bearing block and the second axial magnetic bearing block are a pair of axial magnetic bearings. The magnetic suspension force generated by the first axial magnetic bearing block and the second axial magnetic bearing block acts on the thrust plate to achieve radial suspension of the magnetic suspension machining spindle, thereby producing a frictionless, contactless suspended equilibrium state to achieve energy saving and emission reduction.

[0065] In a specific embodiment, the magnetic suspension bearing module further includes a magnetic suspension bearing controller. The magnetic suspension bearing controller is electrically connected to the first radial magnetic suspension bearing, the second radial magnetic suspension bearing and the axial magnetic suspension bearing assembly respectively.

[0066] The magnetic bearing controller may be, but is not limited to, a DSP (Digital Signal Processor), an ARM (Advanced RISC Machines) or an FPGA (Field Programmable Gate Array) controller.

[0067] Specifically, the magnetic bearing controller can be used to control the operation of the first radial magnetic bearing, the second radial magnetic bearing and the axial magnetic bearing assembly respectively, so that the first radial magnetic bearing, the second radial magnetic bearing and the axial magnetic bearing assembly respectively produce magnetic suspension effects.

[0068] In one embodiment, the motor is a synchronous motor or an asynchronous motor.

[0069] Specifically, the synchronous motor may be a permanent magnet synchronous motor. A permanent magnet synchronous motor refers to a synchronous motor with a synchronous rotating magnetic field generated by permanent magnet excitation; the permanent magnet synchronous motor can be used to drive the rotating shaft to rotate. The asynchronous motor may be a squirrel cage asynchronous motor.

[0070] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A magnetic suspension internal thread copper tube processing equipment, characterized in that: The invention comprises a housing and a magnetic suspension device arranged in the housing. The magnetic suspension device comprises: a magnetic suspension processing spindle, the magnetic suspension processing spindle is provided with a copper tube to be processed for transmission The transmission cavity; A magnetic suspension control device, the magnetic suspension control device comprising a magnetic suspension bearing module for driving a magnetic suspension machining spindle to suspend, and a motor for controlling the rotation of the magnetic suspension machining spindle; the magnetic suspension bearing module is sleeved on the magnetic suspension machining spindle The stator of the motor is sleeved on the magnetic suspension processing spindle; A tool head, the tool head is arranged at the front end of the magnetic suspension machining spindle and is driven to rotate by the magnetic suspension machining spindle; The tool head is used to perform internal thread processing on the copper tube to be processed; the central axis of the tool head is aligned with the center of the transmission cavity. The axis lines overlap; The gas cooling component includes a gas flow input interface for connecting to a gas supply device and a gas cooling device for connecting to the gas supply device. a gas output interface of the gas supply equipment; The housing is provided with a first input through hole and a first output through hole; the airflow input interface is provided at the first input The airflow output interface is arranged on the first output through hole; The magnetic suspension internal thread copper tube processing equipment also includes a fixture; the fixture is used to fix the tool head on the magnetic suspension Machining the front end of the spindle; The magnetic suspension bearing module includes a first auxiliary bearing sleeved on the front end of the magnetic suspension machining spindle, a first auxiliary bearing sleeved on the magnetic suspension machining spindle, and a first auxiliary bearing sleeved on the magnetic suspension machining spindle. A second auxiliary bearing at the rear end of the suspension processing spindle, a first radial magnetic suspension bearing arranged close to the first auxiliary bearing, and a second radial magnetic bearing disposed adjacent to the second auxiliary bearing; The first radial magnetic suspension bearing and the second radial magnetic suspension bearing are respectively sleeved on the magnetic suspension machining spindle.

2. The magnetic suspension internal thread copper tube processing equipment according to claim 1, characterized in that: Also includes: Liquid cooling kit The liquid cooling assembly includes a liquid flow channel component sleeved on the stator of the motor, which is used to connect the liquid supply device A liquid input interface, and a liquid output interface for connecting to the liquid supply device; The housing is provided with a second input through hole and a second output through hole; the liquid input interface is provided at the second input through hole. The liquid output interface is arranged on the second output through hole.

3. The magnetic suspension internal thread copper tube processing equipment according to claim 2 is characterized in that: The liquid flow channel component is provided There is at least one liquid transfer channel.

4. The magnetic suspension internal thread copper tube processing equipment according to claim 1, characterized in that: The magnetic bearing module The invention also includes an axial magnetic suspension bearing assembly disposed between the second radial magnetic suspension bearing and the second auxiliary bearing. Item; The axial magnetic suspension bearing assembly is used to control the axial suspension of the magnetic suspension machining spindle.

5. The magnetic suspension internal thread copper tube processing equipment according to claim 4 is characterized in that: The axial magnetic bearing The component includes a thrust plate arranged on the magnetic suspension machining spindle, and a thrust plate arranged between the second radial magnetic suspension bearing and the thrust plate. and a first axial magnetic suspension bearing block disposed between the thrust plate and the second auxiliary bearing. Axial magnetic bearing block.

6. The magnetic suspension internal thread copper tube processing equipment according to claim 5, characterized in that: The magnetic bearing module Also included is a magnetic bearing controller; The magnetic bearing controller is electrically connected to the first radial magnetic bearing, the second radial magnetic bearing and the An axial magnetic bearing assembly is described.

7. The magnetic suspension internal thread copper tube processing equipment according to claim 1, characterized in that: The diameter of the transmission cavity is large The diameter of the tool head.

8. The magnetic suspension internal thread copper tube processing equipment according to any one of claims 1 to 7, characterized in that: The electric The machine is a synchronous motor or an asynchronous motor.

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