CN109227221A - Double helix main shaft temperature control system and its control method - Google Patents
Double helix main shaft temperature control system and its control method Download PDFInfo
- Publication number
- CN109227221A CN109227221A CN201811328940.8A CN201811328940A CN109227221A CN 109227221 A CN109227221 A CN 109227221A CN 201811328940 A CN201811328940 A CN 201811328940A CN 109227221 A CN109227221 A CN 109227221A
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- water
- double helix
- main shaft
- water supply
- temperature control
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
Abstract
A kind of double helix main shaft temperature control system provided by the invention and its control method, are related to equipment manufacturing technology field, comprising: double helix axle sleeve mechanism, double helix axle sleeve mechanism include double helix axle sleeve, main shaft and mounting base；The inner wall of double helix axle sleeve or the outer wall of main shaft are provided in the axial direction with two spiral helicine spiral grooves, main shaft is sealingly mounted in double helix axle sleeve by mounting base, and two spiral grooves constitute the water inlet access that circulation is connected to and out water passage between main shaft and double helix axle sleeve；Double-screw shaft, which is put on, is provided with inlet and outlet, inlet and outlet respectively with water inlet access and out water passage is connected to；The outlet of water supply mechanism is connected to water inlet；The import of water supply mechanism is connected to water outlet；Temperature control mechanism is used to monitor the water temperature value of water inlet position and water outlet position；Control mechanism and the control of water supply mechanism and temperature control mechanism connect, for controlling the water supply of water supply mechanism according to the monitoring result of temperature control mechanism.
Description
Technical field
The present invention relates to equipment manufacturing technology fields, more particularly, to a kind of double helix main shaft temperature control system and its controlling party
Method.
Background technique
In equipment manufacturing technology field, the temperature of main shaft operation drastically influences the finger such as precision and reliability of main shaft
Mark.During the work time, since spindle motor can be easy to cause main shaft " locking " etc. extremely existing with the mutual temperature arrising caused by friction of air
As in addition to the reasonable heat condition of the electricity piece in spindle motor, these redundancy heats have main shaft normal work extremely disadvantageous
Influence, need to prevent such phenomenon and occur, inhibit adverse effect.
In the prior art, the main shaft of cutting machines is high to temperature requirement, but existing temperature control system open loop,
Device is complicated, and water temperature is unstable, and the temperature of main shaft is difficult to effectively control in reasonable range, affect main shaft precision,
Reliability and service life.
Summary of the invention
The purpose of the present invention is to provide a kind of double helix main shaft temperature control system and its control methods, to solve the prior art
The technical issues of temperature of middle main shaft is difficult to effectively control, and affects the precision, reliability and service life of main shaft.
It is spontaneous by being carried out to manufacturing equipment in the prior art the study found that spindle motor is compact-sized, gap is smaller
Heat dissipation effect is weaker, so heat cannot distribute in time, can be easy to cause between main shaft inner body and generate in various degree
Thermal expansion, to influence the performance indicators such as main axis stiffness, machining accuracy, but will influence the main shaft service life.
And in order to solve the above-mentioned technical problem, this application provides the following technical solutions, it is intended to solve machining and set
Standby main shaft is to temperature requirement height, and existing temperature control system open loop, device are complicated, the unstable problem of water temperature.
A kind of double helix main shaft temperature control system provided by the invention, comprising:
Double helix axle sleeve mechanism, double helix axle sleeve mechanism include double helix axle sleeve, main shaft and mounting base；
The inner wall of the double helix axle sleeve or the outer wall of the main shaft are provided in the axial direction with two spiral helicine spiral grooves,
The main shaft is sealingly mounted in the double helix axle sleeve by the mounting base, two spiral grooves in the main shaft and
The water inlet access for recycling connection and out water passage are constituted between the double helix axle sleeve；
The double-screw shaft, which is put on, is provided with inlet and outlet, the water inlet and the water outlet respectively with it is described
Water inlet access is connected to the water passage out；
Water supply mechanism, the outlet of the water supply mechanism are connected to the water inlet, cold for conveying to the water inlet access
But water；The import of the water supply mechanism is connected to the water outlet, for recycling the cooling water of the water passage out；
Temperature control mechanism, the temperature control mechanism are used to monitor the water temperature value of the water inlet position and the water outlet position；
Control mechanism, the control mechanism and the water supply mechanism and temperature control mechanism control connect, for according to institute
The monitoring result for stating temperature control mechanism controls the water supply of the water supply mechanism.
Further, in an embodiment of the present invention, the temperature control mechanism includes:
First sensor and second sensor, the first sensor and the second sensor be separately mounted to it is described into
The position at the mouth of a river and the water outlet, for monitoring the water temperature value of the water inlet position and the water outlet position.
Further, in an embodiment of the present invention, the control mechanism includes:
Controller, the controller and the first sensor, the second sensor and water supply mechanism control connect
It connects, the temperature difference for obtaining the water temperature value of the water inlet position and the water outlet position and both calculating, and according to institute
State the water supply that temperature difference controls the water supply mechanism.
Further, in an embodiment of the present invention, the water supply mechanism includes:
Water cooling unit, inlet and outlet pipes；Water inlet line connection the water cooling unit outlet and it is described into
Between the mouth of a river, the outlet conduit is connected between the water outlet and the import of the water cooling unit, for logical in the water inlet
Road, the runner for forming circulation between water passage and the water cooling unit out.
Further, in an embodiment of the present invention, the end of the double helix axle sleeve is provided with Double seal ring, and passes through
The Double seal ring end face seal.
Further, in an embodiment of the present invention, the helical pitch of two spiral grooves is 15mm, and groove width is equal
For 4mm.
Further, in an embodiment of the present invention, it is provided with I/O interface on the controller, the first sensor,
The second sensor and the water cooling unit are connected by the I/O interface and controller control.
The present invention also provides a kind of control methods of double helix main shaft temperature control system, including pair as claimed in claim
Screw spindle temperature control system, the method is as follows:
Water supply mechanism provide cooling water, and the water inlet access, it is described out followed between water passage and the water supply mechanism
Circulation is dynamic；
The temperature control mechanism monitors the water temperature value of the water inlet position and the water outlet position；
The control mechanism and the control of the water supply mechanism and the temperature control mechanism connect, according to the prison of the temperature control mechanism
Survey the water supply that result controls the water supply mechanism.
Further, in an embodiment of the present invention, the control mechanism obtains the water inlet position and the water outlet
The water temperature value of mouth position and the temperature difference for calculating the two；
When the temperature difference is greater than fiducial temperature value, the control mechanism controls the water supply mechanism and increases water supply.
Further, in an embodiment of the present invention, the fiducial temperature value is 1 DEG C.
In the above-mentioned technical solutions, it is combined by Design of Mechanical Structure and control system, efficiently solves machining
The main shaft of equipment is to temperature requirement height, and existing temperature control system open loop, device are complicated, the unstable phenomenon of water temperature.It is suitable for
The temperature of the Aerostatic Spindle motor controls, and has the characteristics that reliable and stable, control is simple, motor stabilizing operation.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of double helix axle sleeve provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of double helix main shaft temperature control system provided in an embodiment of the present invention；
Fig. 3 is the top view of main shaft provided in an embodiment of the present invention；
Fig. 4 is the schematic cross-section of main shaft shown in Fig. 3.
Appended drawing reference:
11- double helix axle sleeve；12- main shaft；
13- spiral groove；
21- first sensor；22- second sensor；
31- controller；
41- water cooling unit；
42- water inlet line；43- outlet conduit.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1 is the structural schematic diagram of double helix axle sleeve provided in an embodiment of the present invention；Fig. 2 is provided in an embodiment of the present invention
The structural schematic diagram of double helix main shaft temperature control system；Fig. 3 is the top view of main shaft provided in an embodiment of the present invention；Fig. 4 is Fig. 3 institute
The schematic cross-section of the main shaft shown.As shown in Figs 1-4, a kind of 12 temperature control system of double helix main shaft provided in this embodiment, comprising:
11 mechanism of double helix axle sleeve, 11 mechanism of double helix axle sleeve include double helix axle sleeve 11, main shaft 12 and mounting base；
The inner wall of the double helix axle sleeve 11 or the outer wall of the main shaft 12 are provided in the axial direction with two spiral helicine spirals
Groove 13, the main shaft 12 are sealingly mounted in the double helix axle sleeve 11 by the mounting base, two spiral grooves
13 constitute the water inlet access of circulation connection and out water passage between the main shaft 12 and the double helix axle sleeve 11；
Be provided with inlet and outlet on the double helix axle sleeve 11, the water inlet and the water outlet respectively with institute
It states into water access and is connected to the water passage out；
Water supply mechanism, the outlet of the water supply mechanism are connected to the water inlet, cold for conveying to the water inlet access
But water；The import of the water supply mechanism is connected to the water outlet, for recycling the cooling water of the water passage out；
Temperature control mechanism, the temperature control mechanism are used to monitor the water temperature value of the water inlet position and the water outlet position；
Control mechanism, the control mechanism and the water supply mechanism and temperature control mechanism control connect, for according to institute
The monitoring result for stating temperature control mechanism controls the water supply of the water supply mechanism.
From the foregoing, it will be observed that 11 mechanism of double helix axle sleeve is made up of double helix axle sleeve 11, main shaft 12 and mounting base combination,
And by being provided in the axial direction with two spiral helicine spiral shells in the inner wall of the double helix axle sleeve 11 or the outer wall of the main shaft 12
Revolve groove 13, make two spiral grooves 13 is constituted between the main shaft 12 and the double helix axle sleeve 11 water inlet access with
Water passage out, this water inlet access and water passage out circulation is connected to, can make cooling water into from the water inlet access into
Enter, then passing to can enter water passage after leading to roadhead into water, flow out using water passage out.
The inlet and outlet opened up on the double helix axle sleeve 11 are logical with the water inlet access and the water outlet respectively
Road connection to be used to convey cooling water to the water inlet access, and recycles cooling water from water outlet and flows out.Water inlet and go out
The diameter at the mouth of a river can be the circular hole of 6mm.Object is cut by taking tellurium-zincium-cadmium crystal as an example, 12 motor of main shaft can be selected direct current and drive
Dynamic motor, torque 5.3Nm, revolving speed≤3000rpm, motor diameter 200mm, height 150mm.
The setting position of the spiral groove 13 can the double helix axle sleeve 11 inner wall or the main shaft 12 it is outer
Wall, those skilled in the art can select according to the actual situation, just repeat no more herein.
Based on above structure, when use, can use the control mechanism and control the water system to the double-screw shaft
The water inlet of set 11 conveys cooling water, makes cooling water in water inlet access, goes out to circulate between water passage and water supply mechanism, absorbs
The heat of main shaft 12.
At the same time, the temperature control mechanism can the real-time or separated in time monitoring water inlet position and the water outlet
The water temperature value of mouth position, after the water temperature value that temperature control mechanism obtains the water inlet position and the water outlet position, institute
The information of these water temperature values will be obtained by stating control mechanism, and calculate the temperature of the water inlet position and the water outlet position
Difference.
Under normal use state, which should keep dynamic equilibrium, stablize within the scope of default temperature, example
The temperature difference of position should be lower than 1 DEG C at such as two.Once the temperature difference of position has been greater than preset temperature range, the control at two
Mechanism processed will control the water supply mechanism and improve water supply, make more cooling waters faster in water inlet access, out water passage
It is recycled between water supply mechanism, the temperature difference of position at two is lowered, guarantee the stability of 12 operating ambient temperature of main shaft,
Ensure that main shaft 12 works normally.
In conclusion combining by Design of Mechanical Structure and control system, the master of cutting machines is efficiently solved
Axis 12 is to temperature requirement height, and existing temperature control system open loop, device are complicated, the unstable phenomenon of water temperature.It is quiet suitable for air
The temperature control for pressing 12 motor of main shaft has the characteristics that reliable and stable, control is simple, motor stabilizing operation.
Further, in an embodiment of the present invention, the temperature control mechanism includes:
First sensor 21 and second sensor 22, the first sensor 21 and the second sensor 22 are installed respectively
In the position of the water inlet and the water outlet, for monitoring the water temperature of the water inlet position and the water outlet position
Value.
The installation of the first sensor 21 and the second sensor 22 for convenience, can be in the water inlet and institute
Water outlet setting mounting hole is stated, the first sensor 21 and the second sensor 22 are installed in the mounting hole,
To be firmly installed in the position of the water inlet and the water outlet.The diameter of mounting hole can be 4mm.
And utilize the first sensor 21 and the second sensor 22, can easily and effectively to the water inlet
The water temperature value of position and the water outlet position is monitored, and facilitates the acquisition of data information.21 He of first sensor
The second sensor 22 can use PT100 platinum resistance thermometer sensor, precision temperature sensor, size 4mm × 30mm, Stainless steel 316 steel
Pipe encapsulation, has the characteristics that Water-proof and oil-proof, anti-corrosion and acidproof, is mounted on the peace of the inlet and outlet of double helix axle sleeve 11
It fills on hole, is fixed using M8 nut.
Further, in an embodiment of the present invention, the control mechanism includes:
Controller 31, the controller 31 and the first sensor 21, the second sensor 22 and the water supplying machine
Structure control connection, the temperature difference for obtaining the water temperature value of the water inlet position and the water outlet position and both calculating,
And the water supply of the water supply mechanism is controlled according to the temperature difference.
Since the controller 31 is controlled with the first sensor 21, the second sensor 22 and the water supply mechanism
Connection, constitutes the control loop of closure, so when the controller 31 is obtained by the first sensor 21 and described the
The water temperature value that two sensors 22 monitor just can timely calculate the temperature of the water inlet position and the water outlet position
Difference, and temperature difference is monitored, the water supply mechanism can be timely controlled when temperature difference has exceeded preset temperature
Water supply stablizes temperature difference, is maintained at temperature difference within the scope of preset temperature.
Controller 31 can select Omron PLC controller 31, internal PLC process control.First sensor 21 and second
The signal feedback of sensor 22 is on controller 31, by reading voltage value under a constant current, calculates resistance value, to obtain pair
The water temperature value answered, and then calculating temperature difference value.
Preferably, in an embodiment of the present invention, the water supply mechanism includes:
Water cooling unit 41, water inlet line 42 and outlet conduit 43；The connection of water inlet line 42 the going out in the water cooling unit 41
Between mouth and the water inlet, the outlet conduit 43 is connected between the water outlet and the import of the water cooling unit 41, is used
In in the water inlet access, the runner for forming circulation between water passage and the water cooling unit 41 out.
Water cooling unit 41 can match the recirculated water cold 41 with control interface, refrigerant R410a, cooling water flow 25L/
Min, temperature control range is at 5 DEG C~35 DEG C, temperature-controlled precision ± 0.1 DEG C, water tank capacity 10L, refrigerating capacity 5000W, and control signal wire is
RS485 agreement is connected with controller 31, the water temperature and flow for remotely located water cooling unit 41.
The outlet of cooling-water machine is fixedly attached on the water inlet of double helix axle sleeve 11 by the water inlet line 42 of φ 8mm；It is cold
The import of water dispenser is fixedly attached on the water outlet of double helix axle sleeve 11 by the water inlet line 42 of φ 8mm.
It can make the water inlet access, water passage and the water cooling unit out using water inlet line 42 and outlet conduit 43
The runner that circulation is formed between 41 also facilitates control of the controller 31 to water supply using water cooling unit 41.
Preferably, in an embodiment of the present invention, the end of the double helix axle sleeve 11 is provided with Double seal ring, and passes through
The Double seal ring end face seal.Double seal ring uses Teflon.
Those skilled in the art can also be sealed double helix axle sleeve 11 using other sealing structures or sealing means,
It just no longer limits herein.
Preferably, in an embodiment of the present invention, the helical pitch of two spiral grooves 13 is 15mm, and groove width is equal
For 4mm.This groove width and screw pitch can either guarantee the flowing of smooth in water flow, and the access and out between water passage of capable of guaranteeing to intake
It does not interact.
Preferably, in an embodiment of the present invention, I/O interface, the first sensor are provided on the controller 31
21, the second sensor 22 and the water cooling unit 41 are connected by the I/O interface and the controller 31 control.
The present invention also provides a kind of control methods of 12 temperature control system of double helix main shaft, including as claimed in claim
12 temperature control system of double helix main shaft, the method is as follows:
Water supply mechanism provide cooling water, and the water inlet access, it is described out followed between water passage and the water supply mechanism
Circulation is dynamic；
The temperature control mechanism monitors the water temperature value of the water inlet position and the water outlet position；
The control mechanism and the control of the water supply mechanism and the temperature control mechanism connect, according to the prison of the temperature control mechanism
Survey the water supply that result controls the water supply mechanism.
Specifically used method can just repeat no more herein with reference to recording above.
Further, in an embodiment of the present invention, the control mechanism obtains the water inlet position and the water outlet
The water temperature value of mouth position and the temperature difference for calculating the two；
When the temperature difference is greater than fiducial temperature value, the control mechanism controls the water supply mechanism and increases water supply.
Further, in an embodiment of the present invention, the fiducial temperature value is 1 DEG C.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of double helix main shaft temperature control system characterized by comprising
Double helix axle sleeve mechanism, double helix axle sleeve mechanism include double helix axle sleeve, main shaft and mounting base；
The inner wall of the double helix axle sleeve or the outer wall of the main shaft are provided in the axial direction with two spiral helicine spiral grooves, described
Main shaft is sealingly mounted in the double helix axle sleeve by the mounting base, and two spiral grooves are in the main shaft and described
The water inlet access for recycling connection and out water passage are constituted between double helix axle sleeve；
The double-screw shaft, which is put on, is provided with inlet and outlet, the water inlet and the water outlet respectively with the water inlet
Access is connected to the water passage out；
Water supply mechanism, the outlet of the water supply mechanism are connected to the water inlet, for conveying cooling water to the water inlet access；
The import of the water supply mechanism is connected to the water outlet, for recycling the cooling water of the water passage out；
Temperature control mechanism, the temperature control mechanism are used to monitor the water temperature value of the water inlet position and the water outlet position；
Control mechanism, the control mechanism and the water supply mechanism and temperature control mechanism control connect, for according to the temperature
The monitoring result of control mechanism controls the water supply of the water supply mechanism.
2. double helix main shaft temperature control system according to claim 1, which is characterized in that the temperature control mechanism includes:
First sensor and second sensor, the first sensor and the second sensor are separately mounted to the water inlet
With the position of the water outlet, for monitoring the water temperature value of the water inlet position and the water outlet position.
3. double helix main shaft temperature control system according to claim 2, which is characterized in that the control mechanism includes:
Controller, the controller and the first sensor, the second sensor and water supply mechanism control connect, and use
In the water temperature value for obtaining the water inlet position and the water outlet position and the temperature difference both calculated, and according to the temperature difference
Value controls the water supply of the water supply mechanism.
4. double helix main shaft temperature control system according to claim 3, which is characterized in that the water supply mechanism includes:
Water cooling unit, inlet and outlet pipes；Outlet and the water inlet of the water inlet line connection in the water cooling unit
Between, the outlet conduit is connected between the water outlet and the import of the water cooling unit, in the water inlet access, institute
State out the runner that circulation is formed between water passage and the water cooling unit.
5. double helix main shaft temperature control system described in any one of -4 according to claim 1, which is characterized in that the double-screw shaft
The end of set is provided with Double seal ring, and passes through the Double seal ring end face seal.
6. double helix main shaft temperature control system described in any one of -4 according to claim 1, which is characterized in that two spirals
The helical pitch of groove is 15mm, and groove width is 4mm.
7. double helix main shaft temperature control system according to claim 4, which is characterized in that be provided with IO on the controller and connect
Mouthful, the first sensor, the second sensor and the water cooling unit are connected by the I/O interface and controller control
It connects.
8. a kind of control method of double helix main shaft temperature control system, which is characterized in that including any one of such as claim 1-7 institute
The double helix main shaft temperature control system stated, the method is as follows:
Water supply mechanism provides cooling water, and in the water inlet access, the recycle stream between water passage and the water supply mechanism out
It is dynamic；
The temperature control mechanism monitors the water temperature value of the water inlet position and the water outlet position；
The control mechanism and the control of the water supply mechanism and the temperature control mechanism connect, according to the monitoring knot of the temperature control mechanism
Fruit controls the water supply of the water supply mechanism.
9. control method according to claim 8, which is characterized in that the control mechanism obtain the water inlet position and
The water temperature value of the water outlet position and the temperature difference for calculating the two；
When the temperature difference is greater than fiducial temperature value, the control mechanism controls the water supply mechanism and increases water supply.
10. control method according to claim 9, which is characterized in that the fiducial temperature value is 1 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811328940.8A CN109227221A (en) | 2018-11-09 | 2018-11-09 | Double helix main shaft temperature control system and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811328940.8A CN109227221A (en) | 2018-11-09 | 2018-11-09 | Double helix main shaft temperature control system and its control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977345A (en) * | 2021-09-16 | 2022-01-28 | 扬州市久盈精密主轴有限公司 | Motor spindle with good cooling effect |
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Application publication date: 20190118 |
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| RJ01 | Rejection of invention patent application after publication |