CN110026817B - Cooling type electrochemical machining power supply leading-in device - Google Patents
Cooling type electrochemical machining power supply leading-in device Download PDFInfo
- Publication number
- CN110026817B CN110026817B CN201910187830.2A CN201910187830A CN110026817B CN 110026817 B CN110026817 B CN 110026817B CN 201910187830 A CN201910187830 A CN 201910187830A CN 110026817 B CN110026817 B CN 110026817B
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- cooling
- cooling water
- fixed
- plate
- fixing plate
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- 238000001816 cooling Methods 0.000 title claims abstract description 38
- 238000003754 machining Methods 0.000 title claims abstract description 17
- 239000000498 cooling water Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 19
- 230000017525 heat dissipation Effects 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Images
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a cooling type electrochemical machining power supply leading-in device, which comprises a rotating plate fixed on a main shaft and a fixing plate fixed on a main shaft box, wherein the rotating plate is fixed on the main shaft; the rotating plate is provided with a plurality of clamping grooves, one ends of the plurality of carbon brushes are connected with the bottoms of the clamping grooves through springs, and the other ends of the plurality of carbon brushes are pressed by the fixed plate in a contact manner so as to be fixed in the clamping grooves; the device also comprises a cooling water collecting box and a cooling pump; the water inlet of the cooling water collecting box is communicated with the cooling water outlet, the water outlet of the cooling water collecting box is communicated with the water inlet of the cooling pump, and the water outlet of the cooling pump is communicated with the cooling water inlet; the cooling pump is still connected in control system, and control system connects in temperature sensor, and temperature sensor installs in the fixed plate. The device can not only transmit current to the workpiece, but also keep the temperature of the conductive device within an acceptable range.
Description
Technical Field
The invention relates to a spindle power supply leading-in device of an electrochemical machining machine tool and a cooling device thereof, in particular to an electrochemical machining power supply leading-in device which adopts a fixed plate to conduct electricity and has air cooling and water cooling combined cooling functions.
Background
The electrical connection between the processing power supply and the machine tool has been a difficult problem in electrochemical machining processes. The difficulty is that the carbon brush and the spindle of the machine tool need to be ensured to have good conductivity under the condition of relative motion, and particularly, the carbon brush and the spindle can keep good conductivity under the condition of high-speed relative motion. At present, the friction and the electric conduction of a carbon brush and a friction ring of a brush motor are generally adopted in the electrochemical machining process for solving the problem, and the air cooling structure is realized by means of self rotation. This structure has no problem in low current machining, but sometimes the electrochemical machining requires a large current, which is very liable to cause heat generation and high temperature, thereby causing damage to machine tool equipment or causing a potential risk to an operator. Therefore, it is necessary to design a device that reliably delivers current while maintaining the temperature of the conductive device within an acceptable range.
Disclosure of Invention
The invention aims to provide a cooling type electrochemical machining power supply leading-in device which can reliably transfer current and keep the temperature of a conductive device within an acceptable range.
In order to achieve the purpose, the invention adopts the following technical scheme: a cooling type electrochemical machining power supply leading-in device comprises a rotating plate fixed on a main shaft, and a fixing plate fixed on the main shaft box and arranged in parallel with the rotating plate; the rotating plate is provided with a plurality of clamping grooves, one ends of the plurality of carbon brushes are connected with the bottoms of the clamping grooves through springs, and the other ends of the plurality of carbon brushes are pressed by the fixed plate in a contact manner so as to be fixed in the clamping grooves; the rotating plate and the fixing plate can both be conductive;
a cooling water circulation pore channel is drilled in the fixed plate and is communicated with the outside through a cooling water inlet and a cooling water outlet;
the device also comprises a cooling water collecting box and a cooling pump; the water inlet of the cooling water collecting box is communicated with the cooling water outlet, the water outlet of the cooling water collecting box is communicated with the water inlet of the cooling pump, and the water outlet of the cooling pump is communicated with the cooling water inlet; the cooling pump is also connected to a control system, the control system is connected to a temperature sensor, and the temperature sensor is arranged on the fixing plate;
at least one fan facing the fixed plate is arranged around the fixed plate; the power supply is connected with the fixing plate through an external power supply lead-in port on the fixing plate.
The side of the rotating plate, which is far away from the spring, is provided with a diversion trench with a blowing function, so that heat generated on the rotating plate can be taken away as much as possible.
As an improvement, an air duct is further arranged between the fan and the fixed plate.
As an improvement, the fixing plate is provided with heat dissipation holes.
The invention has the advantages that the rotating plate is vertical to the main shaft, the size of the rotating plate is not limited by the diameter of the main shaft, more carbon brushes can be installed, the contact area of the carbon brushes and the fixed plate is increased, and the current transmission capability is increased; the shape and size of the fixing plate are not limited by the structure of the main shaft. The rotating plate is provided with the diversion trench, and the fixing plate is provided with the heat dissipation holes (the rotating plate can also be provided with the heat dissipation holes), so that the heat dissipation way of the fixing plate is increased, and the heat can be dissipated in time; the cooling mode combining air cooling and water cooling is adopted, air cooling is adopted under the conventional condition, when the temperature detected by the temperature sensor reaches the temperature limited by the processing requirement, the air cooling is not enough to cool the temperature of the main shaft, and the water cooling mode is started to cool the main shaft. The medium current and the small current are processed by adopting an air cooling mode, the device is simple and easy to operate, the electricity is saved, and the water cooling mode is adopted under the condition of large current processing so as to achieve the sufficient cooling effect.
Drawings
FIG. 1 is a side view of the rotating and stationary plates and their adjacent components of the present apparatus;
fig. 2 is a view of the rotating plate of fig. 1 looking through the fixed plate from direction a;
FIG. 3 is a basic configuration view of the apparatus as seen from A in FIG. 1;
fig. 4 is a view of the rotating plate (with the vane-like guide grooves) and the fan as seen from the direction C in fig. 1 in the case where the present apparatus includes a plurality of fans;
fig. 5 shows a channel having an approximately rectangular shape.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the apparatus includes a rotating plate 3 fixed to a spindle 5, and a fixed plate 1 fixed to a spindle head and disposed parallel to the rotating plate 3; the rotating plate 3 rotates along with the main shaft 5, and the fixed plate 1 does not rotate. As shown in fig. 2, the rotating plate 3 is cylindrical, 4 slots 17 are formed in the rotating plate 3, each slot 17 has 2 carbon brushes 2, one end of each carbon brush 2 is connected with the bottom of the slot 17 through a spring 12, and the other end is pressed by the fixed plate 1 so as to be fixed in the slot 17; the power supply is connected with the fixing plate 1 through an external power supply lead-in port 16 on the fixing plate 1, and both the fixing plate 1 and the rotating plate 3 are selected to be conductive materials due to the requirement of power supply. Of course, the shape of the fixing plate 1, the number of the slots 17, the number of the carbon brushes 2, and the like may be other schemes.
When the rotating plate 3 rotates, the carbon brush 2 is driven to rotate through the slot 17, and the rotation of the carbon brush 2 rubs with the fixing plate 1 to generate a large amount of heat, so that the heat dissipation process will be described later.
As shown in fig. 3, four cooling water flow channels 61 are drilled in the fixing plate 1 in a longitudinally and horizontally staggered manner, wherein an upper opening is reserved as a cooling water inlet 6, a lower opening is reserved as a cooling water outlet 7, the two openings are communicated with the outside, and the other openings are blocked by a plug 62.
The cooling water outlet 7 described above is communicated with the water inlet of the cooling water collecting tank 11 in the figure, the water outlet of the cooling water collecting tank 11 is communicated with the water inlet of the cooling pump 10, and the water outlet of the cooling pump 10 is communicated with the cooling water inlet 6; the cooling pump 10 is also connected to a control system 9, the control system 9 is connected to a temperature sensor 8, and the temperature sensor 8 is installed below the fixing plate 1.
A fan 4 facing the fixed plate 1 is also arranged above the fixed plate 1; the fan 4 may be plural as shown in fig. 4. The two fans arranged oppositely can be arranged to output air and input air in general, when the fan 4 inputs air, the air guide tube 13 can be added to prevent the fan 4 from approaching the main shaft too much because the fan 4 is close to the main shaft 5 too much to suck the electrolyte into the fan 4.
As shown in fig. 4, a guide groove 31 having a blade-like blowing function is formed in a surface of the rotating plate 3 remote from the spring 12, and the guide groove 31 is formed so as not to penetrate through a surface of the rotating plate 3 on which the engaging groove 17 is formed. After the rotating plate 3 rotates, the guiding groove 31 generates wind, so that the heat of the whole device is taken away as much as possible by the wind. Channels 31 may also be in a pattern that approximates a rectangle, as shown in fig. 5.
Naturally, heat radiation holes may be formed in the fixed plate 1 and the rotating plate 3 for further heat radiation (although the heat generated in the rotating plate 3 is not so large).
In the use process: the current flows into the fixed plate 1 through the external power supply lead-in port 16, the fixed plate 1 guides the current into the carbon brush 2, the carbon brush 2 is contacted with the rotating plate 3 through the spring 12, so that the current is transmitted into the rotating plate 3, the rotating plate 3 is fixed on the main shaft 5, the current is transmitted to the main shaft 5, the main shaft 5 is connected with a workpiece in the electrochemical machining process, and the current is transmitted to the workpiece. The fixed plate 1 generates heat due to friction between the fixed plate 1 and the carbon brush 2 in the electrochemical machining process; the current flows through the fixed plate 1, the rotating plate 3 and the main shaft 5, a large amount of heat is generated due to the resistance of the material, and the fan 4 is normally used for exhausting air through the air guide cylinder 13 and the flow of the surrounding air caused by the rotation of the flow guide groove of the rotating plate 3 so as to achieve the purpose of heat dissipation. When the temperature sensor 8 detects that the temperature of the fixing plate 1 is higher than the warning temperature, the controller 9 controls the cooling pump 10 to work, cooling water is sprayed into the fixing plate 1 through the cooling water inlet 6, the cooling water returns to the cooling water collecting box 11 through the cooling water outlet 7, the cooling water circulation is achieved, heat is conducted out, and therefore the fixing plate 1 is cooled. In the cooling process, the temperature sensor 8 detects the temperature of the fixing plate 1 in real time and controls the on-off of the cooling pump 10.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (4)
1. The cooling type electrochemical machining power supply introducing device is characterized by comprising a rotating plate (3) fixed on a main shaft (5) and a fixing plate (1) fixed on the main shaft box and arranged in parallel with the rotating plate (3); a plurality of clamping grooves (17) are formed in the rotating plate (3), one ends of the carbon brushes (2) are connected with the bottoms of the clamping grooves (17) through springs (12), and the other ends of the carbon brushes are pressed by the fixed plate (1) in a contact mode so as to be fixed in the clamping grooves (17); the rotating plate (3) and the fixing plate (1) can both be conductive;
a cooling water circulation channel (61) is drilled in the fixing plate (1), and the cooling water circulation channel (61) is communicated with the outside through a cooling water inlet (6) and a cooling water outlet (7);
the device also comprises a cooling water collecting box (11) and a cooling pump (10); the water inlet of the cooling water collecting box (11) is communicated with the cooling water outlet (7), the water outlet of the cooling water collecting box (11) is communicated with the water inlet of the cooling pump (10), and the water outlet of the cooling pump (10) is communicated with the cooling water inlet (6); the cooling pump (10) is also connected to a control system (9), the control system (9) is connected to a temperature sensor (8), and the temperature sensor (8) is mounted on the fixing plate (1);
at least one fan (4) facing the fixed plate (1) is arranged around the fixed plate (1); the power supply is connected with the fixing plate (1) through an external power supply lead-in port (16) on the fixing plate (1).
2. The cooled electrochemical machining power supply introducing device according to claim 1, wherein a flow guiding groove (31) having a blowing function is formed on a surface of the rotating plate (3) away from the spring (12).
3. The cooled electrochemical machining power lead-in device according to claim 1, characterized in that an air duct (13) is further arranged between the fan (4) and the fixing plate (1).
4. The cooled electrochemical machining power supply lead-in device according to claim 1, characterized in that the fixing plate (1) is provided with heat dissipation holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910187830.2A CN110026817B (en) | 2019-03-13 | 2019-03-13 | Cooling type electrochemical machining power supply leading-in device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910187830.2A CN110026817B (en) | 2019-03-13 | 2019-03-13 | Cooling type electrochemical machining power supply leading-in device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110026817A CN110026817A (en) | 2019-07-19 |
| CN110026817B true CN110026817B (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910187830.2A Active CN110026817B (en) | 2019-03-13 | 2019-03-13 | Cooling type electrochemical machining power supply leading-in device |
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| Country | Link |
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| CN (1) | CN110026817B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10174401A (en) * | 1996-12-06 | 1998-06-26 | Matsushita Electric Ind Co Ltd | Commutator electric blower |
| CN201430507Y (en) * | 2009-04-04 | 2010-03-24 | 邱乐军 | Radiating fin type phase switcher of disc-shaped plane conduction band of series machine |
| CN102349219A (en) * | 2008-10-27 | 2012-02-08 | 维斯塔斯风力系统集团公司 | Slip ring assembly with cooling |
| CN104885343A (en) * | 2012-12-05 | 2015-09-02 | 丰田自动车株式会社 | Cooling structure for slip ring device |
| CN205878807U (en) * | 2016-06-27 | 2017-01-11 | 华南理工大学 | Use electromagnetic heating's energy -saving ore sand drying -machine |
| CN106463903A (en) * | 2014-03-27 | 2017-02-22 | 滑动环及设备制造有限公司 | Slipring with active cooling |
| CN206332311U (en) * | 2017-01-06 | 2017-07-14 | 杭州楚连科技有限公司 | A kind of conducting slip ring from radiating |
| CN208580926U (en) * | 2018-09-04 | 2019-03-05 | 九江汉唐光电传输技术有限公司 | A kind of ultrahigh speed conducting slip ring electrical feedthrough based on circulation oil-cooling technology |
-
2019
- 2019-03-13 CN CN201910187830.2A patent/CN110026817B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10174401A (en) * | 1996-12-06 | 1998-06-26 | Matsushita Electric Ind Co Ltd | Commutator electric blower |
| CN102349219A (en) * | 2008-10-27 | 2012-02-08 | 维斯塔斯风力系统集团公司 | Slip ring assembly with cooling |
| CN201430507Y (en) * | 2009-04-04 | 2010-03-24 | 邱乐军 | Radiating fin type phase switcher of disc-shaped plane conduction band of series machine |
| CN104885343A (en) * | 2012-12-05 | 2015-09-02 | 丰田自动车株式会社 | Cooling structure for slip ring device |
| CN106463903A (en) * | 2014-03-27 | 2017-02-22 | 滑动环及设备制造有限公司 | Slipring with active cooling |
| CN205878807U (en) * | 2016-06-27 | 2017-01-11 | 华南理工大学 | Use electromagnetic heating's energy -saving ore sand drying -machine |
| CN206332311U (en) * | 2017-01-06 | 2017-07-14 | 杭州楚连科技有限公司 | A kind of conducting slip ring from radiating |
| CN208580926U (en) * | 2018-09-04 | 2019-03-05 | 九江汉唐光电传输技术有限公司 | A kind of ultrahigh speed conducting slip ring electrical feedthrough based on circulation oil-cooling technology |
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| CN110026817A (en) | 2019-07-19 |
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