Grinding cooling device

Abstract

The utility model discloses a grinding cooling device which comprises a mounting seat, a cooling device, a cooling device and a cooling device, and the mounting seat is used for mounting a to-be-ground metal piece; the grinding head is movably arranged on the mounting seat and is used for grinding the mounted metal piece; the thermoelectric refrigeration part is arranged on the mounting base, the thermoelectric refrigeration part and the grinding head are arranged in a spaced mode, and the thermoelectric refrigeration part is used for abutting against a metal part to be ground; and the circuit system is connected to the thermoelectric refrigeration part and used for supplying power to the thermoelectric refrigeration part, so that the thermoelectric refrigeration part absorbs heat of the metal part through the thermoelectric effect. It can be understood that the precision and the quality of grinding machining are remarkably improved, the machining efficiency is improved, the service life of a cutter is prolonged, energy consumption is saved, the production cost is reduced, and obvious economic benefits are generated.

Description

Technical Field

[0001] The utility model relates to the technical field of metal part processing, and particularly relates to a grinding cooling device. Background Art

[0002] At present, during the grinding process of metal parts such as knives and scissors, cooling treatment is required to absorb the heat generated by grinding, so as to avoid thermal damage to the ground metal parts and ensure the service performance of the metal part products. Specifically, the coolant is dispersed in the grinding area of the metal part, and the dispersed coolant absorbs the heat generated by grinding, thereby achieving the cooling effect. However, on the one hand, the dispersion of the coolant will affect the working environment of the grinding process, resulting in environmental pollution problems. On the other hand, it will cause problems such as coolant replacement and recycling, thereby increasing the processing cost of the grinding products. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a grinding cooling device, aiming to solve the environmental pollution problem and avoid the problem of increasing the processing cost of grinding products.

[0004] To achieve the above purpose, the grinding cooling device proposed by the utility model includes:

[0005] A mounting seat for mounting the metal part to be ground;

[0006] A grinding head movably arranged on the mounting seat for grinding the mounted metal part;

[0007] A thermoelectric refrigeration element arranged on the mounting seat, spaced from the grinding head, and used for contacting the metal part; and

[0008] A circuit system connected to the thermoelectric refrigeration element for supplying power to the thermoelectric refrigeration element so that the thermoelectric refrigeration element transfers the heat generated by grinding through the thermoelectric effect.

[0009] Optionally, the circuit system includes a power supply module and a control module. The power supply module is connected to the thermoelectric refrigeration element for supplying power to the thermoelectric refrigeration element, and the control module is connected to the power supply module to control the power supply of the power supply module.

[0010] Optionally, the grinding cooling device further includes a current detector connected to the thermoelectric refrigeration element for detecting the working current of the thermoelectric refrigeration element, and the control module is connected to the current detector to monitor the working current of the thermoelectric refrigeration element through the current detector.

[0011] Optionally, the grinding cooling device further includes a temperature sensor disposed on the mounting base and close to the grinding area of the grinding head. The temperature sensor detects the temperature of the grinding area where it is located. The temperature sensor is connected to the control module, and the control module controls the supply voltage of the power supply module according to the detected temperature of the temperature sensor.

[0012] Optionally, the grinding cooling device further includes a water cooling circulation system. The flow path of the water cooling circulation system passes through the grinding area of the grinding head, and the water cooling circulation system is used to cool the grinding area.

[0013] Optionally, the water cooling circulation system includes a spray head, a cooler and a collector. The cooler is filled with cooling water. The water outlet of the cooler is communicated with the spray head. The spray head is used to be disposed above the metal part to be ground, so that the spray head sprays cooling water to the grinding area of the metal part. The collector is used to be disposed below the metal part to be ground. The cooling water forms hot water after absorbing the heat generated by grinding. The collector collects the formed hot water, and the collector is communicated with the water inlet of the cooler, so that the collected hot water is cooled by the cooler.

[0014] Optionally, a high-pressure pump is provided in the flow path connecting the spray head and the cooler. The high-pressure pump is used to provide power for the cooling water of the cooler, so that the cooling water of the cooler flows to the spray head.

[0015] Optionally, the mounting base includes a mold and a fixture. The mold has two adjacent surfaces. A clamping space is formed between one of the surfaces and the fixture. The clamping space is used to clamp the metal part to be ground. The other surface is provided with the thermoelectric refrigeration element, and the thermoelectric refrigeration element is used to abut against the metal part in the clamping space.

[0016] Optionally, the thermoelectric refrigeration element is a sheet-like structural member formed of bismuth telluride material.

[0017] The grinding cooling device proposed by the present utility model has a metal part to be ground installed on a mounting base. A grinding head is movably arranged on the mounting base, and the grinding head grinds the metal part installed on the mounting base. At the same time, a thermoelectric cooling element abuts against the metal part to be ground, and a circuit system is connected to the thermoelectric cooling element, and the circuit system supplies power to the thermoelectric cooling element. In this way, when an electric current is generated by power supply, the thermoelectric cooling element transfers the heat generated by grinding through the thermoelectric effect, so that the heat is transferred to the side of the thermoelectric cooling element away from the grinding area, thereby achieving the effect of cooling the grinding area. It can be understood that the present utility model achieves the cooling effect through the thermoelectric effect of the thermoelectric cooling element, avoiding the thermal damage of the metal part during the grinding process and ensuring the service performance of the ground product. Since it does not involve the dispersion of coolant, the problem of environmental pollution is solved while avoiding the increase in the production cost of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0019] Figure 1 FIG. is a schematic structural diagram of an embodiment of the grinding cooling device of the present utility model;

[0020] Explanation of the reference numerals in the drawings:

[0021] Label Name Label Name 100 Grinding cooling device 140 Circuit system 110 Mounting base 141 Power supply module 111 Mold 160 Water cooling circulation system 112 Fixture 161 Spray head 120 Grinding head 200 Metal part 130 Thermoelectric refrigeration component

[0022] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0024] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0025] Heat accumulation problem: A large amount of grinding heat is generated during the grinding process of metal parts. Among them, only less than 1% of the heat is carried away with the chips, and the vast majority of the heat is transferred into the metal parts. During the grinding process, this heat transferred into the metal parts does not have time to penetrate deep into the metal parts but accumulates in the surface layer to form a local high temperature, and the local high temperature of the metal parts can reach 800°C. Moreover, this local high temperature has a large temperature gradient, which has a great impact on the surface quality and service performance of the metal parts. For the tool to be ground, martensite, austenite, and bainite in the alloy material of the tool will grow as the temperature rises, resulting in the edge becoming brittle and crystal precipitation. And when the temperature exceeds a certain critical value, it will cause thermal damage to the surface of the alloy material, such as oxidation, burning, and cracks, etc. The result will reduce the anti-wear performance of the tool, increase the sensitivity of stress corrosion, reduce the anti-fatigue performance, and thus reduce the service life and reliability of the tool. Therefore, it is necessary to remove the heat generated by grinding.

[0026] Precision and quality problem: Excessive temperature will cause tool wear, thermal expansion, etc. during the grinding process, which will further reduce the grinding precision and cause changes in the shape and size of the tool after processing. Therefore, controlling the surface temperature of the tool during the grinding process ensures the precision and quality of the grinding process.

[0027] Tool life problem: The tool is prone to wear due to the influence of high temperature during the grinding process, which shortens the service life of the tool. Therefore, controlling the surface temperature of the tool during the grinding process and preventing the tool from overheating are beneficial to extending the service life of the tool.

[0028] Environmental pollution and resource waste problem: In the existing grinding process, coolant is sprayed onto the grinding area to remove the heat generated by grinding. The coolant includes coolant liquid and cooling gas. Although the cooling gas can effectively reduce heat accumulation, the cooling gas is limited by the air flow speed and the cooling area and cannot provide a continuous cooling effect. To provide a continuous cooling effect, the commonly used coolant liquid includes grinding fluid, cooling lubricant, and cooling water. The direct spraying of the coolant liquid will undoubtedly cause sewage to flow everywhere in the factory production line, leading to sanitation problems and causing the staff to endure a dirty and messy working environment. In this way, while seriously polluting the environment, it also consumes the coolant liquid, resulting in resource waste. For the use of lubricants, there are also residual problems and cleaning problems for the lubricants added periodically. For the use of grinding fluid, the use cost of the grinding fluid is high, which undoubtedly increases the processing cost of the tool.

[0029] In addition, a coolant is introduced inside the cutting tool, and the coolant is conveyed to the grinding area of the cutting tool through the central hole or internal channels of the cutting tool. Although this internal cooling technology can effectively reduce the temperature of the cutting tool during the grinding process and ensure the cutting performance and service life of the cutting tool, the use of the internal cooling technology is limited by specially designed cutting tools and cooling systems, thereby increasing the processing cost of the grinding products.

[0030] Based on this, the present utility model provides a grinding cooling device, which is used to absorb the heat generated during the grinding process, ensure the precision and quality of the cutting tool processing, extend the service life of the cutting tool, and avoid environmental pollution and waste of resources at the same time.

[0031] See Figure 1 As shown in the figure, in an embodiment of the present utility model, a grinding cooling device 100 includes: a mounting seat 110 for mounting a metal part 200 to be ground; a grinding head 120 movably disposed on the mounting seat 110 for grinding the mounted metal part 200; a thermoelectric cooling element 130 disposed on the mounting seat 110, the thermoelectric cooling element 130 being spaced from the grinding head 120, and the thermoelectric cooling element 130 being used to abut against the metal part 200 to be ground; and a circuit system 140 connected to the thermoelectric cooling element 130 for supplying power to the thermoelectric cooling element 130 so that the thermoelectric cooling element 130 transfers the heat generated by the grinding of the metal part 200 through the thermoelectric effect.

[0032] The grinding cooling device 100 proposed by the present utility model has a metal part 200 to be ground installed on a mounting base 110. A grinding head 120 is movably arranged on the mounting base 110, and the grinding head 120 grinds the metal part 200 installed on the mounting base 110. At the same time, a thermoelectric cooling element 130 abuts against the metal part 200 to be ground, and a circuit system 140 is connected to the thermoelectric cooling element 130, and the circuit system 140 supplies power to the thermoelectric cooling element 130. In this way, when an electric current is generated by power supply, the thermoelectric cooling element 130 transfers the heat generated by grinding through the thermoelectric effect, so that the heat is transferred to the side of the thermoelectric cooling element 130 away from the grinding area, thereby achieving the effect of cooling the grinding area. It can be understood that the present utility model achieves the cooling effect through the thermoelectric effect of the thermoelectric cooling element 130, avoids the thermal damage of the metal part 200 during the grinding process, and ensures the service performance of the ground product. Since there is no dispersion of coolant, the problem of environmental pollution is solved while avoiding the increase in product production cost. In the embodiment of the present utility model, the grinding head 120 can be detachably connected to the mounting base 110, or can be rotatably connected to the mounting base 110, or can also be a combination of multiple motion forms. The thermoelectric cooling element 130 is a structural member formed by a thermoelectric cooling material, which can be a thermoelectric cooling sheet, or a thermoelectric cooling block, or other special-shaped structural members, or even a thermoelectric cooler. The embodiment of the present utility model is not limited thereto, and the above are all within the protection scope of the embodiment of the present utility model.

[0033] See Figure 1 As shown, in an embodiment of the present utility model, the circuit system 140 includes a power supply module 141 and a control module. The power supply module 141 is connected to the thermoelectric cooling element 130 and is used to supply power to the thermoelectric cooling element 130. The control module is connected to the power supply module 141, and the control module controls the power supply of the power supply module 141. It should be noted that the power supply module 141 supplies power to the thermoelectric cooling element 130 to provide a voltage. The positive pole of the power supply module 141 is connected to the side of the thermoelectric cooling element 130 close to the abutting metal part 200, and the negative pole of the power supply module 141 is connected to the side of the thermoelectric cooling element 130 away from the abutting metal part 200. In this way, the heat transferred into the metal part 200 is transferred by the thermoelectric cooling element 130 for refrigeration, thereby achieving the effect of cooling the surface of the metal part 200. In the embodiment of the present utility model, the control module controls the supply voltage of the power supply module 141, thereby adjusting the temperature difference between the two sides of the thermoelectric cooling element 130, and controlling the cooling effect by adjusting the temperature difference. And, the greater the supply voltage, the greater the temperature difference, and the better the cooling effect. In this way, by adjusting the supply voltage through the control module, the control of the cooling effect is achieved.

[0034] See Figure 1As shown, in an embodiment of the present utility model, the grinding cooling device 100 further includes a current detector. The current detector is connected to the thermoelectric cooling element 130 and is used to detect the working current of the thermoelectric cooling element 130. The control module is connected to the current detector, and the control module monitors the working current of the thermoelectric cooling element 130 through the current detector. It should be noted that in the embodiment of the present utility model, the control module monitors the working current of the thermoelectric cooling element 130 through the current detector, which is beneficial to realizing the intelligent control of the thermoelectric cooling element 130. Of course, the current detector can be a current sensor or an ammeter, as long as it can detect the circuit current. The embodiment of the present utility model is not limited thereto, and the above are all within the protection scope of the present utility model.

[0035] See Figure 1 As shown, in an embodiment of the present utility model, the grinding cooling device 100 further includes a temperature sensor. The temperature sensor is arranged on the mounting base 110 and is close to the grinding area of the grinding head 120. The temperature sensor detects the temperature of the grinding area where it is located. The temperature sensor is connected to the control module, and the control module controls the supply voltage of the power supply module 141 according to the detected temperature of the temperature sensor. It should be noted that the temperature sensor detects the temperature of the grinding area and transmits the detected temperature to the control module. The control module controls the supply voltage of the power supply module 141 according to the detected temperature, so as to adjust the refrigeration effect of the thermoelectric cooling element 130 through the regulation of the supply voltage, thereby effectively adjusting the refrigeration effect on the grinding area and realizing the intelligent regulation of the surface temperature of the metal part 200 being ground.

[0036] See Figure 1 As shown, in an embodiment of the present utility model, the grinding cooling device 100 further includes a water cooling circulation system 160. The flow path of the water cooling circulation system 160 passes through the grinding area of the grinding head 120, and the water cooling circulation system 160 is used to cool the grinding area. In the embodiment of the present utility model, through the cooperation of the thermoelectric cooling element 130 and the water cooling circulation system 160, it is ensured that the heat generated by grinding is fully absorbed, thereby realizing the cooling of the grinding area and achieving the precise control of the cooling effect. The water cooling circulation system 160 collects and utilizes the cooling water in a circulating manner, which avoids the problems of environmental pollution and resource waste while ensuring the cooling effect.

[0037] See Figure 1As shown, in an embodiment of the present utility model, the water-cooling circulation system 160 includes a spray head 161, a cooler, and a collector. The cooler is filled with cooling water. The water outlet of the cooler is connected to the spray head 161. The spray head 161 is used to be disposed above the metal part 200 being ground, so that the spray head 161 sprays cooling water onto the metal part 200 being ground. The collector is used to be disposed below the metal part 200 being ground. The cooling water forms hot water after absorbing the heat of the metal part 200. The collector collects the formed hot water. The collector is connected to the water inlet of the cooler, so that the inflowing hot water is cooled by the cooler. It should be noted that the water spray opening of the spray head 161 faces the metal part 200 being ground, so that the sprayed cooling water can fully absorb the heat generated by grinding, thereby achieving the effect of reducing the temperature of the metal part 200 being ground. Of course, in the embodiment of the present utility model, a high-pressure pump can also be provided on the pipeline connecting the spray head 161 and the cooler. By providing power through the provided high-pressure pump, it is ensured that the cooling water of the cooler flows towards the spray head 161. Preferably, the cooler is connected to the control module. The control module controls the cooler and the high-pressure pump according to the detected temperature of the temperature sensor, so as to realize the intelligent control of the refrigeration of the water-cooling circulation system 160.

[0038] See Figure 1 As shown, in an embodiment of the present utility model, the mounting seat 110 includes a mold 111 and a fixture 112. The mold 111 has two adjacent surfaces. A clamping space is formed between one surface and the fixture 112. The clamping space is used to clamp the metal part 200 to be ground. The other surface is provided with a thermoelectric refrigeration element 130. The thermoelectric refrigeration element 130 is used to abut against the metal part 200 in the clamping space. In the embodiment of the present utility model, when an electric current passes through the thermoelectric refrigeration element 130, heat transfer will occur between the two ends of the thermoelectric refrigeration element 130. Heat will transfer from one end to the other end, thereby generating a temperature difference to form a hot end and a cold end. The end surface of the thermoelectric refrigeration element 130 close to the clamping space forms a hot end, and the end surface of the thermoelectric refrigeration element 130 far from the clamping space forms a cold end. In this way, the heat of the metal part 200 being ground in the clamping space is continuously absorbed, thereby reducing the temperature of the surface of the metal part 200 and avoiding the thermal damage caused by grinding to the metal part 200.

[0039] See Figure 1As shown, in an embodiment of the present utility model, the thermoelectric cooling element 130 is a sheet-like structural member formed of bismuth telluride material. It should be noted that bismuth telluride (Bi2Te3), as a semiconductor refrigeration sheet, has excellent thermoelectric properties. The thermoelectric properties of bismuth telluride powder are attributed to its special electronic band structure and the regulation of thermal conductivity. When an electric current is applied, the current drives the carriers to migrate directionally, thereby causing an endothermic / exothermic effect at the junctions of different P / N-type materials, achieving electrified refrigeration and achieving the effect of temperature control. Preferably, the thermoelectric cooling element 130 is a thermoelectric cooling sheet, and the thermoelectric cooling sheet abuts against the ground metal part. The thermoelectric cooling sheet has good thermoelectric cooling performance, effectively transfers the heat generated by grinding, reduces the temperature on the surface of the metal part 200, and avoids the thermal damage caused by grinding to the metal part 200.

[0040] It should be further noted that the present utility model utilizes thermoelectric cooling technology to be able to achieve local precise cooling of the tool during the grinding process and effectively reduce the temperature of the tool. Compared with the existing cooling technology, the present utility model efficiently cools the grinding area and reduces heat accumulation; by controlling the temperature, the present utility model reduces the phenomena of thermal expansion and deformation, improves the grinding accuracy and surface quality, reduces the temperature in the grinding area, reduces the influence of high temperature on the tool material, thereby reducing defects such as surface burns and oxidation; by the combined use of thermoelectric cooling technology and water-cooling circulation technology, the present utility model effectively reduces the tool temperature, slows down the tool wear rate, reduces the tool wear, and extends the service life of the tool; the present utility model realizes the stable control of the temperature during the grinding process, reduces the thermal expansion and deformation of the tool, and improves the stability and consistency of tool processing. At the same time, effective cooling can also reduce friction and wear, improve the grinding efficiency and production efficiency. In addition, compared with the large amount of use and treatment of the coolant in the prior art, the present utility model reduces the dependence on the coolant based on the electro-refrigeration material and reduces the environmental pollution risk. At the same time, efficient cooling reduces the energy consumption during the grinding process, improves the energy utilization efficiency, and achieves the energy-saving effect. In summary, the present utility model significantly improves the precision and quality of grinding processing, improves the processing efficiency, extends the service life of the tool, saves energy consumption, reduces the production cost, and generates obvious economic benefits.

[0041] The above is only the preferred embodiment of the present utility model, and does not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A grinding cooling device, characterized in that: include: A mounting seat, the mounting seat being used to mount a metal part to be ground; A grinding head, which is movably mounted on the mounting seat and is used for grinding the mounted metal part; A thermoelectric cooling element, the thermoelectric cooling element is arranged on the mounting seat, the thermoelectric cooling element is spaced apart from the grinding head, and the thermoelectric cooling element is used to contact the metal part; as well as A circuit system is connected to the thermoelectric cooling element and is used to supply power to the thermoelectric cooling element so that the thermoelectric cooling element transfers heat generated by grinding through the thermoelectric effect.

2. The grinding cooling device according to claim 1, characterized in that: The circuit system includes a power module and a control module. The power module is connected to the thermoelectric cooling element and is used to supply power to the thermoelectric cooling element. The control module is connected to the power module and controls the power supply of the power module.

3. The grinding cooling device according to claim 2, characterized in that: The grinding cooling device also includes a current detector, which is connected to the thermoelectric cooling element and is used to detect the working current of the thermoelectric cooling element. The control module is connected to the current detector, and the control module monitors the working current of the thermoelectric cooling element through the current detector.

4. The grinding cooling device according to claim 3, characterized in that: The grinding cooling device also includes a temperature sensor, which is arranged on the mounting seat and close to the grinding area of ​​the grinding head. The temperature sensor detects the temperature of the grinding area. The temperature sensor is connected to the control module, and the control module controls the supply voltage of the power module according to the detected temperature of the temperature sensor.

5. The grinding cooling device according to any one of claims 1 to 4, characterized in that: The grinding cooling device further comprises a water cooling circulation system, the flow path of the water cooling circulation system passes through the grinding area of ​​the grinding head, and the water cooling circulation system is used to cool the grinding area.

6. The grinding cooling device according to claim 5, characterized in that: The water cooling circulation system includes a nozzle, a cooler and a collector. The cooler is filled with cooling water. The water outlet of the cooler is connected to the nozzle. The nozzle is used to be arranged on the ground metal part so that the nozzle sprays cooling water to the grinding area of ​​the metal part. The collector is used to be arranged under the ground metal part. The cooling water absorbs the heat generated by grinding to form hot water. The collector collects the formed hot water. The collector is connected to the water inlet of the cooler so that the collected hot water is cooled by the cooler.

7. The grinding cooling device according to claim 6, characterized in that: A high-pressure pump is provided on a flow path connecting the nozzle and the cooler, and the high-pressure pump is used to provide power to the cooling water of the cooler so that the cooling water of the cooler flows toward the nozzle.

8. The grinding cooling device according to any one of claims 1 to 4, characterized in that: The mounting seat includes a mold and a fixture, the mold has two adjacent surfaces, a clamping space is formed between one surface and the fixture, the clamping space is used to clamp the metal part to be ground, and the other surface is provided with the thermoelectric cooling element, the thermoelectric cooling element is used to contact the metal part in the clamping space.

9. The grinding cooling device according to any one of claims 1 to 4, characterized in that: The thermoelectric cooling element is a sheet-like structural element formed of bismuth telluride material.

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