CN108044457A - The cryogenic processor and method of a kind of zirconia ceramics - Google Patents
The cryogenic processor and method of a kind of zirconia ceramics Download PDFInfo
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- CN108044457A CN108044457A CN201711316571.6A CN201711316571A CN108044457A CN 108044457 A CN108044457 A CN 108044457A CN 201711316571 A CN201711316571 A CN 201711316571A CN 108044457 A CN108044457 A CN 108044457A
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- refrigeration
- zirconia
- fixture
- zirconia ceramics
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- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 239000000919 ceramic Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title abstract description 8
- 238000005057 refrigeration Methods 0.000 claims abstract description 34
- 239000004020 conductor Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 10
- 229910003460 diamond Inorganic materials 0.000 claims description 8
- 239000010432 diamond Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 7
- 238000003672 processing method Methods 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/003—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving acoustic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
技术领域technical field
本发明涉及氧化锆陶瓷领域，尤其是涉及的是一种氧化锆陶瓷的低温加工设备和方法。The invention relates to the field of zirconia ceramics, in particular to a low-temperature processing equipment and method for zirconia ceramics.
背景技术Background technique
氧化锆陶瓷硬度高、韧性低、脆性高、加工过程中材料易出现微裂纹，刀具磨损快，既使用金刚石刀具，一把刀具也只能加工5到7个陶瓷机壳。而且由于刀具的磨损，使氧化锆陶瓷加工尺寸不到位，很容易使氧化锆陶瓷崩边出现微裂纹。Zirconia ceramics have high hardness, low toughness, and high brittleness. The material is prone to microcracks during processing, and the tool wears quickly. Even if a diamond tool is used, one tool can only process 5 to 7 ceramic casings. Moreover, due to the wear of the tool, the processing size of zirconia ceramics is not in place, and it is easy to cause microcracks in the edges of zirconia ceramics.
发明内容Contents of the invention
本发明的目的在于克服上述不足，提供降低刀具磨损、监控氧化锆陶瓷裂纹的一种氧化锆陶瓷的低温加工方法。The object of the present invention is to overcome the above disadvantages and provide a low-temperature processing method for zirconia ceramics which reduces tool wear and monitors cracks in zirconia ceramics.
为实现上述目的，本发明的技术解决方案是：一种氧化锆陶瓷的低温加工设备，包括机床本体、设置在机床本体上的工作台，还包括依次连接的声发射传感器、前置放大器和计算机，工作台上设有制冷夹具，制冷夹具包括用于承接工件的工作面，声发射传感器设于工作面上，工作面的下方设有制冷装置。制冷夹具可以对氧化锆陶瓷工件进行制冷，优化氧化锆陶瓷的加工性能。声发射传感器可以感应氧化锆材料加工过程中的微裂产生，前置放大器将声发射传感器的信号进行放大并发送给计算机进行处理，从而及时发现氧化锆材料的早期裂痕。To achieve the above object, the technical solution of the present invention is: a low-temperature processing equipment for zirconia ceramics, including a machine tool body, a workbench arranged on the machine tool body, and an acoustic emission sensor, a preamplifier and a computer connected in sequence , the working table is provided with a refrigeration fixture, the refrigeration fixture includes a working surface for accepting workpieces, the acoustic emission sensor is arranged on the working surface, and a refrigeration device is provided below the working surface. The refrigeration fixture can cool the zirconia ceramic workpiece to optimize the processing performance of the zirconia ceramic. The acoustic emission sensor can sense microcracks in the process of zirconia material processing, and the preamplifier amplifies the signal of the acoustic emission sensor and sends it to the computer for processing, so as to detect early cracks in the zirconia material in time.
优选的，制冷夹具的侧方设有用于向制冷夹具喷冷气的冷气喷头。加快制冷夹具内的氧化锆陶瓷工件的降温速度和对降温后的氧化锆陶瓷工件保温。Preferably, a cold air spray head for spraying cold air to the refrigeration fixture is provided on the side of the refrigeration fixture. Accelerate the cooling speed of the zirconia ceramic workpiece in the refrigeration fixture and keep the temperature of the zirconia ceramic workpiece after cooling.
优选的，制冷装置为半导体制冷板或内设有流动的制冷剂的管道。Preferably, the refrigerating device is a semiconductor refrigerating plate or a pipeline with flowing refrigerant inside.
优选的，声发射传感器包括金属壳体、压电元件、高频插座、引线，金属壳体内设有腔室，压电元件设于腔室的底部，压电元件与金属壳体之间设有导电胶，压电元件的顶部设有银导电层，高频插座包括外导体和内套于外导体的内导体，外导体设于金属外壳上，引线设于腔室内，引线的两端分别连接内导体和压电元件的顶部；保护膜设于金属壳体的底面，保护膜为电绝缘膜。声发射装置可以接收处理氧化锆加工过程产生的裂纹，能够检测到微小振动，及早发现早期故障，降低质量成本，减少原材料的浪费，减少不合格产品流入市场的机会，大大提升产品的品质。Preferably, the acoustic emission sensor includes a metal shell, a piezoelectric element, a high-frequency socket, and a lead wire. A cavity is arranged in the metal shell, and the piezoelectric element is arranged at the bottom of the cavity. Conductive glue, the top of the piezoelectric element is provided with a silver conductive layer, the high-frequency socket includes an outer conductor and an inner conductor sleeved on the outer conductor, the outer conductor is set on the metal shell, the lead wire is set in the chamber, and the two ends of the lead wire are respectively connected The inner conductor and the top of the piezoelectric element; the protective film is arranged on the bottom surface of the metal shell, and the protective film is an electrical insulating film. The acoustic emission device can receive and process the cracks generated during the processing of zirconia, detect small vibrations, detect early failures, reduce quality costs, reduce waste of raw materials, reduce the chance of unqualified products entering the market, and greatly improve product quality.
一种氧化锆陶瓷的低温加工方法，包括以下步骤：A low-temperature processing method for zirconia ceramics, comprising the following steps:
（1）将氧化锆陶瓷工件放入上述的一种氧化锆陶瓷的低温加工设备的制冷夹具中固定，制冷夹具对氧化锆陶瓷工件进行降温；(1) Put the zirconia ceramic workpiece into the refrigeration fixture of the above-mentioned low-temperature processing equipment for zirconia ceramics and fix it, and the refrigeration fixture cools the zirconia ceramic workpiece;
（2）当氧化锆陶瓷工件温度降至-8℃~-7℃时，用金刚石磨头对氧化锆陶瓷工件进行磨削加工；(2) When the temperature of the zirconia ceramic workpiece drops to -8°C~-7°C, use a diamond grinding head to grind the zirconia ceramic workpiece;
（3）氧化锆陶瓷工件加工完毕后从制冷夹具中取出。(3) After the zirconia ceramic workpiece is processed, it is taken out from the refrigeration fixture.
优选的，步骤（2）当氧化锆陶瓷工件温度降至-7℃时，用金刚石磨头对氧化锆陶瓷工件进行磨削加工。经试验，氧化锆陶瓷工件在-8℃~-7℃时加工性能最好。Preferably, in step (2), when the temperature of the zirconia ceramic workpiece drops to -7°C, use a diamond grinding head to grind the zirconia ceramic workpiece. According to the test, the processing performance of zirconia ceramic workpiece is the best at -8℃~-7℃.
通过采用上述的技术方案，本发明的有益效果是：制冷夹具可以对氧化锆陶瓷工件进行制冷，优化氧化锆陶瓷工件的加工性能，在通过金刚石磨头进行磨削时，刀具耗损更小，加工效率提高了，而且对金刚石磨头的损耗减少了，加工精度更高，降低了工件的崩边微裂纹产生。声发射传感器可以感应氧化锆材料加工过程中的微裂产生，前置放大器将声发射传感器的信号进行放大并发送给计算机进行处理，从而及时发现氧化锆材料的早期裂痕。By adopting the above-mentioned technical scheme, the beneficial effects of the present invention are: the refrigeration fixture can cool the zirconia ceramic workpiece, optimize the processing performance of the zirconia ceramic workpiece, and when grinding by the diamond grinding head, the tool wear is smaller and the processing The efficiency is improved, and the loss of the diamond grinding head is reduced, the machining accuracy is higher, and the chipping and micro-cracks of the workpiece are reduced. The acoustic emission sensor can sense microcracks in the process of zirconia material processing, and the preamplifier amplifies the signal of the acoustic emission sensor and sends it to the computer for processing, so as to detect early cracks in the zirconia material in time.
附图说明Description of drawings
图1为本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2为声发射传感器构成的检测系统的示意图；Fig. 2 is the schematic diagram of the detection system that acoustic emission sensor constitutes;
图3位声发射传感器的结构示意图。Figure 3 Schematic diagram of the structure of the acoustic emission sensor.
主要附图标记说明：Explanation of main reference signs:
机床本体1；工作台2；制冷夹具3；工作面31；制冷装置32；冷气喷头4；声发射传感器5；金属壳体51；腔室511；保护膜52；压电元件53；银导电层531；导电胶54；高频插座55；外导体551；内导体552；引线56；前置放大器6；计算机7。Machine tool body 1; workbench 2; refrigeration fixture 3; work surface 31; refrigeration device 32; cold air nozzle 4; acoustic emission sensor 5; metal shell 51; chamber 511; protective film 52; piezoelectric element 53; silver conductive layer 531; conductive glue 54; high-frequency socket 55; outer conductor 551; inner conductor 552; lead wire 56; preamplifier 6; computer 7.
具体实施方式Detailed ways
以下结合附图和具体实施例来进一步说明本发明。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
如图1-3所示，本发明一种氧化锆陶瓷的低温加工设备，包括机床本体1、设置在机床本体1上的工作台2，还包括依次连接的声发射传感器5、前置放大器6和计算机7。工作台2上设有制冷夹具3，制冷夹具3包括用于承接氧化锆陶瓷工件的工作面31，声发射传感器5设于工作面31上，工作面31的下方设有制冷装置32，制冷装置32为半导体制冷板，也可以采用内设有流动的制冷剂的管道。机床本体1在制冷夹具的侧方设有用于向制冷夹具喷冷气的冷气喷头。As shown in Figures 1-3, the low-temperature processing equipment for zirconia ceramics of the present invention includes a machine tool body 1, a workbench 2 arranged on the machine tool body 1, and an acoustic emission sensor 5 and a preamplifier 6 connected in sequence. and computer7. A refrigeration fixture 3 is provided on the workbench 2, and the refrigeration fixture 3 includes a working surface 31 for receiving a zirconia ceramic workpiece. 32 is a semiconductor refrigeration plate, also can adopt the pipeline that is provided with the refrigerant of flow in it. The machine tool body 1 is provided with a cold air nozzle for spraying cold air to the refrigeration fixture on the side of the refrigeration fixture.
声发射传感器5包括金属壳体51、压电元件53、高频插座55、引线56，金属壳体51内设有腔室511，压电元件53设于腔室511的底部，压电元件53与金属壳体51之间设有导电胶54，压电元件53的顶部设有银导电层531，高频插座55包括外导体551和内套于外导体551的内导体552，外导体551设于金属外壳51上，引线56设于腔室511内，引线511的两端分别连接内导体522和压电元件531的顶部；保护膜52设于金属壳体51的底面，保护膜52为电绝缘膜。图3的声发射传感器5上下翻转后安装在图1的制冷夹具3上。The acoustic emission sensor 5 includes a metal shell 51, a piezoelectric element 53, a high-frequency socket 55, and a lead wire 56. The metal shell 51 is provided with a chamber 511, and the piezoelectric element 53 is located at the bottom of the chamber 511. The piezoelectric element 53 A conductive glue 54 is provided between the metal shell 51, a silver conductive layer 531 is provided on the top of the piezoelectric element 53, and the high-frequency socket 55 includes an outer conductor 551 and an inner conductor 552 inner sleeved on the outer conductor 551. The outer conductor 551 is provided with On the metal shell 51, the lead wire 56 is arranged in the cavity 511, and the two ends of the lead wire 511 are respectively connected to the top of the inner conductor 522 and the piezoelectric element 531; the protective film 52 is arranged on the bottom surface of the metal shell 51, and the protective film 52 is the insulating film. The acoustic emission sensor 5 in FIG. 3 is installed on the cooling fixture 3 in FIG. 1 after being turned upside down.
一种氧化锆陶瓷的低温加工方法，包括以下步骤：A low-temperature processing method for zirconia ceramics, comprising the following steps:
（1）将氧化锆陶瓷工件放入上述的一种氧化锆陶瓷的低温加工设备的制冷夹具中固定，制冷夹具对氧化锆陶瓷工件进行降温；(1) Put the zirconia ceramic workpiece into the refrigeration fixture of the above-mentioned low-temperature processing equipment for zirconia ceramics and fix it, and the refrigeration fixture cools the zirconia ceramic workpiece;
（2）当氧化锆陶瓷工件温度降至-8℃~-7℃时（最优温度为-7℃），用金刚石磨头对氧化锆陶瓷工件进行磨削加工；(2) When the temperature of the zirconia ceramic workpiece drops to -8°C~-7°C (the optimal temperature is -7°C), use a diamond grinding head to grind the zirconia ceramic workpiece;
（3）氧化锆陶瓷工件加工完毕后从制冷夹具中取出。(3) After the zirconia ceramic workpiece is processed, it is taken out from the refrigeration fixture.
以上所述的，仅为本发明的较佳实施例而已，不能限定本发明实施的范围，凡是依本发明申请专利范围所作的均等变化与装饰，皆应仍属于本发明涵盖的范围内。The above is only a preferred embodiment of the present invention, and cannot limit the scope of the present invention. All equivalent changes and decorations made according to the scope of the patent application of the present invention should still fall within the scope of the present invention.
Claims (6)
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