CN204221440U - A kind of adjustable back arc of gas passageway of blade of steam turbine fixture - Google Patents
A kind of adjustable back arc of gas passageway of blade of steam turbine fixture Download PDFInfo
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Abstract
本实用新型涉及一种可调式汽轮机叶片汽道背弧夹具，包括底座和设置在底座两端的夹具体，夹具体包括叶端夹具和叶根夹具，叶端夹具和叶根夹具之间的底座上设有定位销。本实用新型结构简单、成本低，可以根据简单的结构，通过楔形垫块的调整实现叶片加工时的水平，保证加工时的精度，对于大批量相似叶片的加工可以有效缩短加工时间，提高工作效率。
The utility model relates to an adjustable steam turbine blade steam channel back arc clamp, which comprises a base and clamp bodies arranged at both ends of the base, the clamp body includes a blade end clamp and a blade root clamp, and the base between the blade end clamp and the blade root clamp With positioning pins. The utility model has simple structure and low cost. According to the simple structure, the level of blade processing can be realized through the adjustment of the wedge-shaped spacer, and the precision of processing can be guaranteed. For the processing of large batches of similar blades, the processing time can be effectively shortened and the work efficiency can be improved. .
Description
技术领域 technical field
本实用新型涉及一种夹具工装，具体的说是一种可调式汽轮机叶片汽道背弧夹具，属于夹具装备技术领域。 The utility model relates to a fixture tooling, in particular to an adjustable steam turbine blade steam channel back arc fixture, which belongs to the technical field of fixture equipment.
背景技术 Background technique
叶片是汽轮机的关键部件之一，其汽道部分型线的好坏影响气流的运动．决定了汽轮机的发电效率，直接影响到汽轮机产品的质量，也直接影响叶片的工作效果，进而直接影响整机的工作性能，所以叶片汽道型线部分的加工至关重要，对于型线的要求更是非常严格的。 The blade is one of the key components of the steam turbine, and the shape of the part of the steam channel affects the movement of the airflow. It determines the power generation efficiency of the steam turbine, directly affects the quality of the steam turbine product, also directly affects the working effect of the blade, and then directly affects the working performance of the whole machine, so the processing of the steam channel profile of the blade is very important, and the requirements for the profile It is very strict.
日前国内外的叶片加工都是采用数控机床进行加工，加工方法也各不相同，使用的工装夹具也比较多样化，我们以往采用机用虎钳与自行设计的工装配合使用加工，常用的夹具一般都是专用工装，在加工相同型号的叶片而尺寸规格不同的情况下就需要不同的夹具进行适配，对于加工者来讲比较麻烦，影响加工效率。 Recently, blades at home and abroad are processed by CNC machine tools, and the processing methods are also different. The tooling and fixtures used are also diversified. In the past, we used machine vises and self-designed tooling for processing. The commonly used fixtures are generally They are all special-purpose tooling. When processing the same type of blade but with different sizes and specifications, different fixtures are required for adaptation. It is troublesome for the processor and affects the processing efficiency.
实用新型内容 Utility model content
本实用新型所要解决的技术问题是，克服现有技术的缺点，提供一种可调式汽轮机叶片汽道背弧夹具，克服现有因尺寸不同就需要更换夹具术的缺点，实现夹具的通用并提高加工效率的目的。 The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, provide an adjustable steam turbine blade steam channel back arc fixture, overcome the existing shortcomings of changing the fixture due to different sizes, realize the universality of the fixture and improve the The purpose of processing efficiency.
为了解决以上技术问题，本实用新型提供一种可调式汽轮机叶片汽道背弧夹具，包括底座和设置在底座两端的夹具体，所述夹具体包括叶端夹具和叶根夹具，所述叶端夹具包括两个叶端夹块和用于连接两个叶端夹块的叶端底板，所述叶端底板上设有U形槽口，在所述U形槽口内设有带螺柱的T形钉，所述T形钉的端部套接在所述U形槽内，所述叶端夹块侧边靠近底座端部处设有叶端支板，所述叶端支板上端设有叶端压板，所述叶端压板一端靠在所述叶端支板上，另一端靠在待加工叶片的叶端上，所述叶端压板上设有穿入所述T形钉螺柱的压紧孔，在所述T形钉的螺柱上设有压紧螺母； In order to solve the above technical problems, the utility model provides an adjustable steam turbine blade steam path back arc clamp, which includes a base and clamp bodies arranged at both ends of the base, the clamp body includes a blade end clamp and a blade root clamp, and the blade end The fixture includes two blade-end clamping blocks and a blade-end bottom plate for connecting the two blade-end clamping blocks. The blade-end bottom plate is provided with a U-shaped notch, and a bolt with a stud is arranged in the U-shaped notch. T-shaped nails, the ends of the T-shaped nails are sleeved in the U-shaped grooves, a leaf-end support plate is provided on the side of the leaf-end clamping block close to the end of the base, and a leaf-end support plate is provided on the top of the leaf-end support plate. There is a blade end pressure plate, one end of the blade end pressure plate leans against the blade end support plate, and the other end leans against the blade end of the blade to be processed, and the blade end pressure plate is provided with a screw that penetrates into the T-shaped stud. A compression hole is provided with a compression nut on the stud of the T-shaped nail;
所述叶根夹具包括两个叶根夹块和设置在两个叶根夹块之间的叶根垫板，所述叶根垫板通过一侧通过转轴与所述两个叶根夹块相连，所述叶根垫板下部设有楔形垫块，所述叶根垫板下端的底板上设有第二U形槽口，在所述叶根垫板和楔形垫块上均设有与所述第二U形槽外形一致的槽体，所述第二U形槽口内设有第二T形钉，所述第二T形钉的端部套接在所述第二U形槽内，所述叶根夹块侧边靠近底座端部处设有叶根支板，所述叶根支板上端设有叶根压板，所述叶根压板一端靠在所述叶根支板上，另一端靠在待加工叶片的叶根上，所述叶根压板上设有穿入所述第二T形钉螺柱的压紧孔，在所述第二T形钉的螺柱上设有压紧螺母。 The blade root clamp includes two blade root clamping blocks and a blade root backing plate arranged between the two blade root clamping blocks, and the blade root backing plate is connected to the two blade root clamping blocks through a rotating shaft through one side , the lower part of the blade root backing plate is provided with a wedge-shaped spacer, the bottom plate at the lower end of the blade root backing plate is provided with a second U-shaped notch, and the blade root backing plate and the wedge-shaped spacer are provided with the same The groove body of the second U-shaped groove with the same shape, the second U-shaped groove is provided with a second T-shaped nail, and the end of the second T-shaped nail is sleeved in the second U-shaped groove A blade root support plate is provided on the side of the blade root clamp close to the end of the base, a blade root pressure plate is provided on the upper end of the blade root support plate, and one end of the blade root pressure plate leans against the blade root support plate, The other end leans against the blade root of the blade to be processed, and the blade root pressing plate is provided with a compression hole that penetrates the stud of the second T-shaped nail, and a compression hole is provided on the stud of the second T-shaped nail. nuts.
本实用新型进一步限定的技术方案是：前述的可调式汽轮机叶片汽道背弧夹具，所述叶根垫板的转轴安装在所述叶根夹块靠近底座中部一侧的下端。 The technical solution further defined by the utility model is: the aforementioned adjustable steam turbine blade steam path back arc fixture, the rotating shaft of the blade root backing plate is installed at the lower end of the blade root clamping block near the middle of the base.
前述的可调式汽轮机叶片汽道背弧夹具，所述叶端夹具和叶根夹具之间的底座上设有定位销，用以定位叶片，保证叶片处于水平加工位。 In the aforementioned adjustable steam turbine blade steam path back arc fixture, positioning pins are provided on the base between the blade end fixture and the blade root fixture to position the blade and ensure that the blade is in a horizontal processing position.
前述的可调式汽轮机叶片汽道背弧夹具，所述叶端夹块和叶根夹块上均设有锁紧螺栓，用于固定叶片，防止叶片在加工时发生偏移，影响叶片的加工精度。 In the aforementioned adjustable steam turbine blade steam path back arc fixture, locking bolts are provided on the blade end clamping block and the blade root clamping block to fix the blade, prevent the blade from shifting during processing, and affect the processing accuracy of the blade .
进一步的，前述的可调式汽轮机叶片汽道背弧夹具，所述底座与设置在底座两端的夹具体通过焊接方式连接；叶根夹块上设有与楔形垫块对齐的刻度线，用以对不同型号的叶片进行定位标志，减少后续工作的调校时间。 Further, in the aforementioned adjustable steam turbine blade steam channel back arc fixture, the base is connected to the clamp body arranged at both ends of the base by welding; the blade root clamp is provided with a scale line aligned with the wedge-shaped pad for alignment. Different types of blades are marked for positioning to reduce the adjustment time of follow-up work.
本实用新型的有益效果是：本实用新型结构简单、成本低，可以根据简单的结构，通过楔形垫块的调整实现叶片加工时的水平，保证加工时的精度，对于大批量相似叶片的加工可以有效缩短加工时间，提高工作效率。 The beneficial effects of the utility model are: the utility model is simple in structure and low in cost. According to the simple structure, the level of blade processing can be realized through the adjustment of wedge-shaped pads, and the accuracy of processing can be ensured. The processing of similar blades in large quantities can be Effectively shorten processing time and improve work efficiency.
附图说明 Description of drawings
图1为本实用新型的结构示意图。 Fig. 1 is the structural representation of the utility model.
具体实施方式 Detailed ways
实施例1Example 1
本实施例提供的一种可调式汽轮机叶片汽道背弧夹具，结构如图1所示，包括底座1和设置在底座两端的夹具体，夹具体包括叶端夹具和叶根夹具，叶端夹具和叶根夹具之间的底座上设有定位销2，叶端夹具包括两个叶端夹块3和用于连接两个叶端夹块的叶端底板4，叶端底板4上设有U形槽口，在U形槽口内设有带螺柱的T形钉5，T形钉5的端部套接在U形槽内，叶端夹块侧边靠近底座端部处设有叶端支板6，叶端支板6上端设有叶端压板7，叶端压板一端靠在叶端支板6上，另一端靠在待加工叶片11的叶端上，叶端压板上设有穿入T形钉螺柱的压紧孔，在T形钉5的螺柱上设有压紧螺母； An adjustable steam turbine blade steam path back arc clamp provided in this embodiment has a structure as shown in Figure 1, including a base 1 and clamp bodies arranged at both ends of the base, the clamp body includes a blade end clamp and a blade root clamp, and the blade end clamp There is a positioning pin 2 on the base between the blade root clamp, and the blade end clamp includes two blade end clamp blocks 3 and a blade end bottom plate 4 for connecting the two blade end clamp blocks. The blade end bottom plate 4 is provided with a U In the U-shaped notch, there is a T-shaped nail 5 with a stud. The end of the T-shaped nail 5 is sleeved in the U-shaped groove. The end support plate 6, the upper end of the blade end support plate 6 is provided with a blade end pressure plate 7, one end of the blade end pressure plate leans against the blade end support plate 6, and the other end leans against the blade end of the blade 11 to be processed, and the blade end pressure plate is provided with Penetrate the compression hole of the T-shaped nail stud, and be provided with a compression nut on the stud of the T-shaped nail 5;
叶根夹具包括两个叶根夹块和设置在两个叶根夹块3’之间的叶根垫板4’，叶根垫4’板通过一侧通过转轴12与两个叶根夹块相连，叶根垫板的转轴12安装在叶根夹块靠近底座中部一侧的下端，叶根垫板4’下部设有楔形垫块8，叶根夹块上设有与楔形垫块8对齐的刻度线，叶根垫板下端的底板上设有第二U形槽口，在叶根垫板和楔形垫块上均设有与第二U形槽外形一致的槽体，第二U形槽口内设有第二T形钉5’，第二T形钉5’的端部套接在第二U形槽内，叶根夹块侧边靠近底座端部处设有叶根支板，叶根支板6’上端设有叶根压板，叶根压板7’一端靠在叶根支板上，另一端靠在待加工叶片的叶根上，叶根压板上设有穿入第二T形钉螺柱的压紧孔，在第二T形钉5’的螺柱上设有压紧螺母；在叶端夹块和叶根夹块上均设有锁紧螺栓9。 The blade root clamp includes two blade root clamping blocks and a blade root backing plate 4' arranged between the two blade root clamping blocks 3', and the blade root backing plate 4' passes through the rotating shaft 12 on one side and connects with the two blade root clamping blocks. Connected, the shaft 12 of the blade root backing plate is installed at the lower end of the blade root clamping block near the middle of the base, the lower part of the blade root backing plate 4' is provided with a wedge-shaped pad 8, and the blade root clamping block is provided with a wedge-shaped pad 8. There is a second U-shaped notch on the bottom plate at the lower end of the blade root backing plate, and a groove body consistent with the shape of the second U-shaped groove is provided on the blade root backing plate and the wedge-shaped spacer. The second U-shaped A second T-shaped nail 5' is arranged in the notch, and the end of the second T-shaped nail 5' is sleeved in the second U-shaped groove, and a blade root support plate is arranged on the side of the blade root clamp close to the end of the base , the upper end of the blade root support plate 6' is provided with a blade root pressure plate, and one end of the blade root pressure plate 7' leans against the blade root support plate, and the other end leans against the blade root of the blade to be processed, and the blade root pressure plate is provided with a penetrating second T For the compression hole of the stud stud, a compression nut is provided on the stud of the second T-shaped nail 5'; locking bolts 9 are provided on the blade end clamping block and the blade root clamping block.
本实施例的装置在使用时，将叶片放到夹具上后，根据叶根夹块上的刻度调整好楔形垫块的位置，将叶片的叶端和叶根放置到对应位置，然后锁紧叶端夹块和叶根夹块上的锁紧螺母，最后将叶根压板和叶端压板紧固在两个T形钉上，用以最终固定叶片，保证铣刀10在加工时的精度，叶片不发生偏移。 When the device of this embodiment is in use, after putting the blade on the fixture, adjust the position of the wedge-shaped cushion block according to the scale on the blade root clamp block, place the blade end and blade root of the blade to the corresponding positions, and then lock the blade. The lock nuts on the end clamping block and the blade root clamping block, and finally fasten the blade root pressing plate and the blade end pressing plate on the two T-shaped nails to finally fix the blade and ensure the precision of the milling cutter 10 during processing. No offset occurs.
除上述实施例外，本实用新型还可以有其他实施方式。凡采用等同替换或等效变换形成的技术方案，均落在本实用新型要求的保护范围。 In addition to the above embodiments, the utility model can also have other implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the utility model.
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| CN201420657080.3U CN204221440U (en) | 2014-11-05 | 2014-11-05 | A kind of adjustable back arc of gas passageway of blade of steam turbine fixture |
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| CN201420657080.3U CN204221440U (en) | 2014-11-05 | 2014-11-05 | A kind of adjustable back arc of gas passageway of blade of steam turbine fixture |
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| CN105414853A (en) * | 2015-12-31 | 2016-03-23 | 无锡透平叶片有限公司 | Blade root positioning structure for laser cladding of steam turbine blades |
| CN105420726A (en) * | 2015-12-31 | 2016-03-23 | 无锡透平叶片有限公司 | Adjustable fixture for laser cladding of steam turbine blades |
| CN105436929A (en) * | 2015-12-08 | 2016-03-30 | 山西汾西重工有限责任公司 | Vibration prevention machining clamp for milling surfaces of propeller blades |
| CN106002389A (en) * | 2016-07-22 | 2016-10-12 | 南通中能机械制造有限公司 | One-time clamping and milling tool for milling arc surface with same shoulder height of two small shoulders at blade root |
| CN106425734A (en) * | 2016-08-29 | 2017-02-22 | 中航动力股份有限公司 | Numerical control abrasive belt grinding tooling for intake and exhaust edges of precise forged stator blade of aircraft engine |
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| CN107813162A (en) * | 2017-11-10 | 2018-03-20 | 中国航发航空科技股份有限公司 | A kind of frock for being used to process the multi-joint stator blade of large-scale combustion engine |
| CN108788812A (en) * | 2018-05-31 | 2018-11-13 | 宁夏共享模具有限公司 | A kind of device and method of steam turbine twisted blade secondary operation |
| CN110142624A (en) * | 2019-06-10 | 2019-08-20 | 哈尔滨汽轮机厂有限责任公司 | The Combined machining fixture and processing method in a kind of steam turbine bacterial type blade root class blade radial face |
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| CN105420726A (en) * | 2015-12-31 | 2016-03-23 | 无锡透平叶片有限公司 | Adjustable fixture for laser cladding of steam turbine blades |
| CN105414853B (en) * | 2015-12-31 | 2017-08-29 | 无锡透平叶片有限公司 | Blade root location structure for turbine blade laser melting coating |
| CN105420726B (en) * | 2015-12-31 | 2018-02-06 | 无锡透平叶片有限公司 | Adjustable clamp device for turbine blade laser melting coating |
| CN105414853A (en) * | 2015-12-31 | 2016-03-23 | 无锡透平叶片有限公司 | Blade root positioning structure for laser cladding of steam turbine blades |
| CN106002389A (en) * | 2016-07-22 | 2016-10-12 | 南通中能机械制造有限公司 | One-time clamping and milling tool for milling arc surface with same shoulder height of two small shoulders at blade root |
| CN106002389B (en) * | 2016-07-22 | 2018-08-03 | 南通中能机械制造有限公司 | A kind of shoulder heights arc surface clamped one time milling tools such as two small shoulder of milling blade root |
| CN106425734A (en) * | 2016-08-29 | 2017-02-22 | 中航动力股份有限公司 | Numerical control abrasive belt grinding tooling for intake and exhaust edges of precise forged stator blade of aircraft engine |
| CN106624851A (en) * | 2016-10-20 | 2017-05-10 | 成都久欣时代科技有限公司 | Tool clamp for blade drilling |
| CN107813162B (en) * | 2017-11-10 | 2019-05-14 | 中国航发航空科技股份有限公司 | A tool for processing large-scale gas turbine multiple guide vanes |
| CN107813162A (en) * | 2017-11-10 | 2018-03-20 | 中国航发航空科技股份有限公司 | A kind of frock for being used to process the multi-joint stator blade of large-scale combustion engine |
| CN108788812A (en) * | 2018-05-31 | 2018-11-13 | 宁夏共享模具有限公司 | A kind of device and method of steam turbine twisted blade secondary operation |
| CN110303427A (en) * | 2019-05-23 | 2019-10-08 | 中国人民解放军第五七一九工厂 | One kind being used for aero-engine high-pressure compressor rotor blade listrium grinding attachment |
| CN110142624A (en) * | 2019-06-10 | 2019-08-20 | 哈尔滨汽轮机厂有限责任公司 | The Combined machining fixture and processing method in a kind of steam turbine bacterial type blade root class blade radial face |
| CN111571254A (en) * | 2020-04-08 | 2020-08-25 | 钱志伦 | Manufacturing device for arc-shaped blade of steam turbine |
| CN111571254B (en) * | 2020-04-08 | 2021-11-26 | 湖南汇俊精密机械有限公司 | Manufacturing device for arc-shaped blade of steam turbine |
| CN112743364A (en) * | 2020-12-30 | 2021-05-04 | 德阳六合能源材料有限公司 | Clamp for machining steam turbine blade steam passage profile |
| CN112743364B (en) * | 2020-12-30 | 2022-04-01 | 德阳六合能源材料有限公司 | Clamp for machining steam turbine blade steam passage profile |
| CN113829093A (en) * | 2021-10-09 | 2021-12-24 | 哈尔滨汽轮机厂有限责任公司 | Clamp for machining marine turbine nickel-based movable blade and interference machining method |
| CN113829093B (en) * | 2021-10-09 | 2024-05-24 | 哈尔滨汽轮机厂有限责任公司 | Clamp for machining nickel-based material moving blade of marine steam turbine and interference machining method |
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