CN215035987U - Inner hole grinding coolant supply device based on eddy current cooling - Google Patents
Inner hole grinding coolant supply device based on eddy current cooling Download PDFInfo
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- CN215035987U CN215035987U CN202121253605.3U CN202121253605U CN215035987U CN 215035987 U CN215035987 U CN 215035987U CN 202121253605 U CN202121253605 U CN 202121253605U CN 215035987 U CN215035987 U CN 215035987U
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Abstract
The utility model provides an inner hole grinding coolant liquid feeding device based on vortex cooling, includes vortex cooling tube, cooling fluid tank, coolant liquid supply ring and main shaft, vortex cooling tube, cooling fluid tank and coolant liquid supply ring are fixed in the frame, the export of vortex cooling tube meets with the afterbody entry of hybrid tube, and the export of cooling fluid tank meets with the middle part entry of hybrid tube, and the export of hybrid tube meets with the entry that the coolant liquid supplied the ring, the main shaft passes the coolant liquid and supplies the ring and seal by the sealing washer, and the export of coolant liquid supply ring communicates with the cavity of main shaft. The utility model provides a hole grinding coolant liquid feeding device based on vortex cooling improves the current grinding fluid cooling of hole grinding, the lubricated condition.
Description
Technical Field
The utility model relates to a machining equipment, especially a coolant liquid feeding device for hole grinding.
Background
The grinding surface quality, workpiece precision and wear of the grinding wheel are greatly affected by the grinding heat. Failure to properly control the grinding heat can lead to defects such as grinding burn, redeposition of alloying elements, changes in surface physicochemical properties, stress corrosion, creation of residual tensile stress, surface subsurface cracking, and reduced fatigue life. The cooling liquid mainly plays roles of cooling, lubricating, scouring, vibration damping and noise elimination in the internal hole grinding process. The grinding head can reduce the friction among chips, the grinding head and the workpiece in a grinding area, reduce the generation of heat, and simultaneously take away the heat generated after grinding, so that the grinding temperature is reduced. Although liquid nitrogen cooling, jet cooling or dry cutting have been developed, the grinding fluid is still a cooling and lubricating medium that cannot be completely replaced.
In addition to the type, composition, etc. of the grinding fluid, the supply of cooling fluid (nozzle location, geometry, flow rate, etc.) has a large impact on grinding productivity, workpiece quality, and wheel wear. Common grinding fluid injection methods include a high-pressure injection method, an air baffle auxiliary cutoff airflow method, an in-grinding wheel cooling method, a self-acceleration method, a grooving grinding wheel method, a right-angle nozzle, a main nozzle, an auxiliary nozzle, a comprehensive fluid supply method and the like. However, when inner bore grinding is performed, compared with an open grinding environment, the traditional grinding fluid supply mode cannot play a good role, the cooling and lubricating effects of the grinding fluid are poor, and the processing quality of workpieces is affected.
Nozzle location, geometry has a large impact on cooling and lubrication effectiveness. Increasing the distance of the nozzle from the grinding zone reduces the cooling effect. Thus, the nozzle should be as close to the grinding arc as possible, increasing the effective flow and pressure into the grinding arc. When inner hole grinding, particularly deep hole grinding is carried out, the traditional grinding fluid supply method is difficult to carry out short-distance high-pressure supply. A new grinding fluid supply method for inner bore grinding is required to improve the cooling and lubricating conditions of the inner bore grinding fluid.
Disclosure of Invention
In order to overcome the not enough of prior art, the utility model provides a hole grinding coolant liquid feeding device based on vortex cooling improves the current grinding fluid cooling of hole grinding, the lubricated condition.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides an inner hole grinding coolant liquid feeding device based on vortex cooling, includes vortex cooling tube, cooling fluid tank, coolant liquid supply ring and main shaft, vortex cooling tube, cooling fluid tank and coolant liquid supply ring are fixed in the frame, the export of vortex cooling tube meets with the afterbody entry of hybrid tube, and the export of cooling fluid tank meets with the middle part entry of hybrid tube, and the export of hybrid tube meets with the entry that the coolant liquid supplied the ring, the main shaft passes the coolant liquid and supplies the ring and seal by the sealing washer, and the export of coolant liquid supply ring communicates with the cavity of main shaft.
Furthermore, the inlet of the vortex cooling pipe is connected with compressed air, and the outlet of the cold end outputs low-temperature gas which is then led to the cooling liquid supply ring through a mixing pipeline. Because the high-speed airflow in the pipeline generates air pressure difference with the atmospheric pressure, the cooling liquid in the cooling liquid tank is sucked into the mixing pipeline to form a gas-liquid mixture which is led to the cooling liquid supply ring.
Still further, the device includes coolant liquid filtration circulation system, coolant liquid filtration circulation system includes coolant liquid collecting pit, water pump and filter, and the coolant liquid collecting pit is collected the coolant liquid after the processing region uses, takes out the coolant liquid to the filter in the coolant liquid collecting pit through the water pump, and the coolant liquid after the purification flows into the coolant liquid groove once more and circulates.
The technical conception of the utility model is as follows: the vortex cooling pipe can separate the compressed gas into hot flow and cold flow, and the obtained low-temperature gas can reach-50 ℃. The high-speed flowing gas can generate a large atmospheric pressure difference between the inside and the outside of the pipeline, and the cooling liquid is sucked into the pipeline. The low-temperature gas not only cools the cooling liquid, but also can drive the cooling liquid to move forwards. When the inner hole is ground, the cavity of the axis of the main shaft can bring cooling liquid into the workpiece hole, and the cooling liquid is sprayed to a grinding area through the nozzle, so that the cooling and lubricating effects are optimal, and grinding waste can be quickly washed away. The cooling liquid can be circularly purified through the cooling liquid filtering and circulating system, and the cost is saved.
The beneficial effects of the utility model are that: by combining vortex cooling with the hollow main shaft, a novel method for supplying the inner hole grinding cooling liquid is realized. The low-temperature gas can not only cool the cooling liquid, but also drive the cooling liquid to flow rapidly and spray to a processing area, so that a better cooling and lubricating effect is obtained. The cooling liquid is filtered and recycled, so that the cost is saved, and green processing is realized. The device has important significance for realizing a novel and effective cooling liquid supply method and improving the cooling and lubricating effects of inner hole grinding machining.
Drawings
Fig. 1 is a schematic view of an inner bore grinding coolant supply device based on eddy current cooling.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the inner hole grinding cooling liquid supply device based on vortex cooling comprises a vortex cooling pipe, a cooling liquid tank 3, a cooling liquid supply ring 9, a main shaft 4 and a cooling liquid filtering and circulating system, wherein the vortex cooling pipe 2, the cooling liquid tank 3 and the cooling liquid supply ring 9 are fixed on a frame, and the main shaft 4 penetrates through the cooling liquid supply ring 9 and is sealed by a sealing ring 10.
Further, the inlet 1 of the vortex cooling pipe is connected with compressed air, the outlet 7 at the cold end of the vortex cooling pipe discharges low-temperature gas and then leads to the cooling liquid supply ring 9 through the mixing pipeline 8, and the cooling liquid in the cooling liquid tank 3 is sucked into the mixing pipeline 8 to form a gas-liquid mixture and leads to the cooling liquid supply ring 9 together due to the gas pressure difference generated by the high-speed gas flow in the mixing pipeline 8 and the atmospheric pressure.
Furthermore, the cooling liquid filtering and circulating system comprises a cooling liquid collecting pool 17, a water pump 16 and a filter 6, the cooling liquid used in the processing area is collected by the cooling liquid collecting pool 17, the cooling liquid in the cooling liquid collecting pool 17 is pumped to the filter 6 by the water pump 16, impurities are filtered and purified for the cooling liquid, and the purified cooling liquid flows into the cooling liquid tank 3 again for recycling.
The cooling liquid in the cooling liquid supply ring 9 enters the cavity 11 of the main shaft through the main shaft liquid conveying hole 5, and the cooling liquid cooled by low-temperature gas is sprayed out from the nozzle 14 at the tail end of the main shaft under the action of airflow pressure and directly acts on a machining area. The workpiece 13 is fixed by the jig 12, and the rotation of the main shaft 4 is controlled to grind the inner hole of the workpiece 13 by the grinding wheel 15.
The coolant liquid for inner bore grinding of this embodiment is supplied with the realization, produces low temperature gas through the vortex cooling tube, and the coolant liquid drives it and flows, realizes by the hollow shaft that the coolant liquid reachs the processing region, carries out high-efficient cooling and lubrication.
The embodiments described in this specification are merely examples of implementations of the inventive concepts, which are intended for illustrative purposes only. The scope of the present invention should not be construed as being limited to the specific forms set forth in the following description, but rather should be construed as encompassing all the equivalent technical means which may be conceived by one of ordinary skill in the art based on the teachings of the present invention.
Claims (3)
1. The inner hole grinding cooling liquid supply device based on vortex cooling is characterized by comprising a vortex cooling pipe, a cooling liquid tank, a cooling liquid supply ring and a main shaft, wherein the vortex cooling pipe, the cooling liquid tank and the cooling liquid supply ring are fixed on a rack, an outlet of the vortex cooling pipe is connected with an inlet at the tail part of a mixing pipeline, an outlet of the cooling liquid tank is connected with an inlet at the middle part of the mixing pipeline, an outlet of the mixing pipeline is connected with an inlet of the cooling liquid supply ring, the main shaft penetrates through the cooling liquid supply ring and is sealed by a sealing ring, and an outlet of the cooling liquid supply ring is communicated with a cavity of the main shaft.
2. The inner bore grinding coolant supply device based on vortex cooling as claimed in claim 1, wherein the inlet of the vortex cooling pipe is connected with compressed air, and the outlet of the cold end outputs low-temperature gas which is then led to the coolant supply ring through a mixing pipe.
3. The inner bore grinding cooling liquid supply device based on eddy current cooling as claimed in claim 1 or 2, wherein the device comprises a cooling liquid filtering circulation system, the cooling liquid filtering circulation system comprises a cooling liquid collecting pool, a water pump and a filter, the cooling liquid collecting pool collects the used cooling liquid in the machining area, the cooling liquid in the cooling liquid collecting pool is pumped to the filter through the water pump, and the purified cooling liquid flows into the cooling liquid tank again for circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121253605.3U CN215035987U (en) | 2021-06-07 | 2021-06-07 | Inner hole grinding coolant supply device based on eddy current cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121253605.3U CN215035987U (en) | 2021-06-07 | 2021-06-07 | Inner hole grinding coolant supply device based on eddy current cooling |
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| CN215035987U true CN215035987U (en) | 2021-12-07 |
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| CN202121253605.3U Active CN215035987U (en) | 2021-06-07 | 2021-06-07 | Inner hole grinding coolant supply device based on eddy current cooling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290249A (en) * | 2021-12-31 | 2022-04-08 | 湘潭大学 | Internal cooling grinding wheel |
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2021
- 2021-06-07 CN CN202121253605.3U patent/CN215035987U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290249A (en) * | 2021-12-31 | 2022-04-08 | 湘潭大学 | Internal cooling grinding wheel |
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