CN210307331U - Turbine blade side grinding positioning and clamping device - Google Patents
Turbine blade side grinding positioning and clamping device Download PDFInfo
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- CN210307331U CN210307331U CN201921468109.2U CN201921468109U CN210307331U CN 210307331 U CN210307331 U CN 210307331U CN 201921468109 U CN201921468109 U CN 201921468109U CN 210307331 U CN210307331 U CN 210307331U
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Abstract
The utility model provides a turbine blade side grinding positioning and clamping device, which comprises a positioning and clamping tool, a meter setting sleeve and a test meter sleeve; the positioning and clamping tool comprises a bottom plate, a panel, a first side positioning plate, a second side positioning plate, a first guide block, a second guide block, a support nail, a positioning tooth block, a pressing screw, a support block, a screw and a cylindrical pin. The utility model integrates two sets of positioning and clamping tools into one set, reduces the number of tools, reduces the production cost, changes the axis height of the blade from pin positioning to surface positioning when grinding the side surface of the air inlet of the turbine blade, is convenient for an operator to observe, and effectively avoids the situation that the axis height positioning is inconsistent when repeatedly clamping; when the side surface of the air inlet side of the turbine blade is ground, the guide block is adopted to limit the degree of freedom of the pressing tooth block, so that the upward degree of freedom of a workpiece is limited, and the side surface of the air inlet side of the turbine blade is well attached to the cylindrical pin, so that the blade is pressed.
Description
Technical Field
The utility model belongs to the technical field of turbine blade processing, more specifically, relate to a turbine blade side grinds location clamping device.
Background
Turbine blades are important components of gas turbine engine turbine rotors; the turbine rotor uses the steam generated by the heat recovery system to drive the turbine rotor to work through compression. And the turbine rotor is formed by assembling tenon teeth and mortise slots on a turbine disk.
The turbine blade bears larger working stress and higher working temperature in the working process, and the change of the stress and the temperature is more frequent and severe, so the processing precision of the turbine blade is very high, the blade body of the turbine blade is usually designed into a twisted variable cross-section curved surface, the shape is complex, and the turbine blade is generally precisely cast; the blade root tenon tooth is generally fir tree-shaped and needs machining.
The side grinding positioning clamping tool of the existing turbine blade has the following defects: the side surfaces of the inlet edge and the outlet edge of the turbine blade need to be ground, the height error of the side surfaces of the inlet edge and the outlet edge needs to be guaranteed not to exceed plus or minus 0.05mm, the relative angle between the side surfaces of the inlet edge and the outlet edge of the turbine blade and a reference axis of a blade profile needs to be guaranteed, two sets of positioning and clamping tools are needed when the side surfaces of the inlet edge and the outlet edge of the turbine blade are ground at present, and therefore the tool is high in production cost and long in tool.
As shown in figure 1, when the side face of the air inlet side of the turbine blade is ground, the turbine blade 104 is positioned and pressed through a tooth block 101 and a pressing block 102, the height of the axis is determined by adopting the high point of one section of a taper pin 103 and a blade body, the requirement on the position and the height of the taper pin 103 is high, the joint of the taper pin 103 and the blade body is not easy to observe in the use process, the positioning error is easy to generate, and the consistency of the height of the axis of the blade in the clamping process cannot be ensured.
As shown in FIG. 2, when the turbine blade is milled at the side surface of the gas inlet side, the turbine blade 203 is positioned and pressed by the positioning inclined block 201 and the pressing block 202, the pressing block 202 and the positioning inclined block 201 are matched by the positioning pin 204, because the tenon tooth is an inclined tooth, the pressing block 202 generates an upward component force during operation, the pressing block 202 is inclined upwards and cannot press the turbine blade 203, and the degree of adhesion between the side surface of the gas inlet side and the positioning pin 204 is poor.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a turbine blade side grinding positioning and clamping device to solve the above-mentioned problems.
The utility model provides a turbine blade side grinds location clamping device, include: positioning a clamping tool, a meter alignment sleeve tool and a test meter sleeve tool; the positioning and clamping tool comprises a bottom plate, a panel, a first side positioning plate, a second side positioning plate, a first guide block and a second guide block; wherein, the upper and lower sides of the first side positioning plate and the second side positioning plate are respectively fixedly connected with the panel and the bottom plate, the upper surface of the bottom plate is fixedly provided with a supporting nail, the upper surface of the supporting nail is contacted and positioned with the side surface of the grinded air inlet edge, the axis height of the turbine blade is controlled by adjusting the height of the supporting nail, the panel is provided with a through hole matched with a test meter sleeve tool, one side of the first side positioning plate is fixedly connected with a positioning tooth block used for positioning the turbine blade, the tenon tooth part of the positioning tooth block is the same as the tenon tooth profile of the turbine blade, the first guide block is fixedly connected with the bottom plate and matched with a groove on the bottom plate, the second guide block is fixedly connected with the panel and matched with a groove on the panel, a groove formed between the first guide block and the second guide block is a guide groove, a pressing tooth block is clamped in the guide groove, and the tenon tooth part of the pressing tooth block is matched and grinded according, the tail part of the pressing tooth block is pressed through a pressing screw on the second side positioning plate, a supporting block is further fixed on the bottom plate, the top end of the supporting block supports the panel, and the distance between the bottom plate and the panel is controlled by adjusting the height of the supporting block, so that a gap required by an assembly part is kept between the first guide block and the second guide block; the test sheet sleeving tool comprises a test sheet body and a round positioning pin arranged in the test sheet body; the meter alignment tool comprises a dial indicator, a nut, a measuring rod, a spring, a positioning pin, a measuring head, a meter alignment body and a spring chuck; the spring is sleeved on the measuring rod and fixed in the meter body through the spring chuck and the nut, the tail end of the measuring rod is in threaded connection with the measuring head, the measuring head is in contact with the round positioning pin, and the head end of the measuring rod is connected with the dial indicator.
In addition, the preferable structure is that the gauge sleeve tooling further comprises a conical end set screw, and the conical end set screw is screwed into the gauge body to jack the spring chuck tightly.
In addition, the preferable structure is that the gauge sleeve tooling further comprises a clamping plate, the clamping plate is fixed on the lower bottom surface of the panel, and after the gauge sleeve is screwed into the panel, the angle of the gauge sleeve is controlled through the clamping plate, so that the top of the measuring head is perpendicular to the blade body of the turbine blade, and the measuring head is guaranteed to be in point contact with the turbine blade.
Compared with the prior art, the utility model integrates two sets of positioning and clamping tools into one set of positioning and clamping tool, reduces the number of tools and production cost, changes the axis height of the blade from pin positioning to meter positioning when grinding the side surface of the air inlet side of the turbine blade, is convenient for an operator to observe, and effectively avoids the situation that the axis height positioning is inconsistent when repeatedly clamping; when the side surface of the air outlet side of the turbine blade is ground, the guide block is connected with the pressing tooth block to limit the degree of freedom of the pressing tooth block, so that the upward degree of freedom of a workpiece is limited, and the side surface of the air inlet side of the turbine blade is well attached to the cylindrical pin, so that the blade is pressed.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description and appended claims, taken in conjunction with the accompanying drawings.
In the drawings:
FIG. 1 is a schematic structural view of a conventional turbine blade air inlet side grinding positioning and clamping tool;
FIG. 2 is a schematic structural view of a conventional turbine blade air outlet side grinding positioning and clamping tool;
fig. 3 is a schematic structural view of a positioning and clamping tool according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 4;
fig. 7 is a schematic structural diagram of a test chart sleeve tool according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a watch sleeve tool according to an embodiment of the present invention.
Wherein the reference numerals include: the measuring instrument comprises a tooth block 101, a pressing block 102, a taper pin 103, a pressing turbine blade 104, a positioning inclined block 201, a pressing block 202, a turbine blade 203, a positioning pin 204, a bottom plate 301, a panel 302, a first side positioning plate 303, a second side positioning plate 304, a first guide block 305, a second guide block 306, a supporting nail 307, a positioning tooth block 308, a pressing tooth block 309, a pressing screw 310, a supporting block 311, a screw 312, a cylindrical pin 313, a test chart body 401, a circular positioning pin 402, a dial indicator 501, a nut 502, a measuring rod 503, a spring 504, a gauge head guide seat 505, a measuring head 506, a counter body 507, a spring clamp 508 and a taper end fastening screw 509 and a clamping plate 510.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The utility model provides a turbine blade side grinds location clamping device, include: the positioning and clamping tool comprises a pair of meter sleeves and a test meter sleeve, wherein the positioning and clamping tool is used for positioning and clamping the turbine blades, the meter sleeves are used for measuring the axial height of the turbine blades and positioning the meter, and the test meter sleeves are used for simulating and positioning the axial height of the turbine blades. Firstly let earlier let to set a watch the cover and try table cover contact, have a reading to set a watch the cover, then with turbine blade clamping in location clamping instrument, the reuse is to set a watch the cover and the blade body contact of turbine blade, also can produce a numerical value to set a watch the cover, and the difference of two numerical values is big, explains that I even the blade does not adorn well, and the difference of two numerical values is little, explains that I even blade position is correct.
The specific structures of the positioning and clamping tool, the watch sleeve and the test sleeve are described in detail below.
Fig. 3-6 show the structure of the positioning and clamping tool according to the embodiment of the present invention respectively.
As shown in fig. 3-6, the embodiment of the present invention provides a positioning and clamping tool, which includes: a bottom plate 301, a face plate 302, a first side positioning plate 303, a second side positioning plate 304, a first guide block 305, and a second guide block 306; the upper sides of the first side positioning plate 303 and the second side positioning plate 304 are fixedly connected with the panel 302 through screws 312, the lower sides of the first side positioning plate 303 and the second side positioning plate 304 are fixedly connected with the bottom plate 301 through screws 312, cylindrical pins 313 are further connected between the bottom plate 301, the panel 302 and the first side positioning plate 303, the bottom plate 301 and the second side positioning plate 304, the upper surface of the bottom plate 301 is used as a measuring reference surface, supporting pins 307 are fixed on the upper surface of the bottom plate 301, the upper surfaces of the supporting pins 307 are in contact positioning with the ground side surface of the air inlet edge, the axial height of the turbine blade is controlled by adjusting the height of the supporting pins 307, and through holes matched with a test meter sleeve tool are formed in the panel 302.
One side of the first side positioning plate 303 is fixedly connected with a positioning tooth block 308 for positioning the turbine blade, and a tenon tooth part of the positioning tooth block 308 is the same as a tenon tooth profile of the turbine blade, so that the positioning function is realized on the turbine blade.
The first guide block 305 is fixedly connected with the base plate 1 through a screw 312 and is matched with a groove on the base plate 301, the second guide block 306 is fixedly connected with the panel 302 through a screw 312 and is matched with a groove on the panel 302, a groove formed between the first guide block 305 and the second guide block 306 is a guide groove, the pressing tooth block 309 is clamped in the guide groove, namely the pressing tooth block 309 is clamped between the first guide block 305 and the second guide block 306, the first guide block 305 and the second guide block 306 provide a guide groove for the pressing tooth block 309, and meanwhile, the vertical freedom degree of the pressing tooth block 309 in working is limited, so that the reaction force and the upward component force generated when the turbine blade is pressed are mutually offset. The tenon tooth part of the pressing tooth block 309 is ground according to the tenon tooth of the turbine blade, and the tail part of the pressing tooth block 309 is pressed by the pressing screw 310 on the second side positioning plate 304.
A supporting block 311 is further fixed on the base plate 301 by a screw 312, the top end of the supporting block 311 supports the panel 302, and the distance between the base plate 301 and the panel 302 is controlled by adjusting the height of the supporting block 311, so that a gap required for the assembly portion is maintained between the first guide block 305 and the second guide block 306.
Fig. 7 shows the structure of the test chart sleeve tool according to the embodiment of the utility model.
As shown in fig. 7, the test sheet set tool includes: the turbine blade comprises a test surface body 401 and a circular positioning pin 402, wherein the circular positioning pin 402 is installed in the test surface body 401, the test surface body 401 is matched with a through hole in the panel 302, and the circular positioning pin 402 is used for simulating the height of the section position of the blade body of the turbine blade.
Fig. 8 shows the structure of the watch sleeve tool according to the embodiment of the present invention.
As shown in fig. 8, the cover setting tool includes: the dial indicator 501, a nut 502, a measuring rod 503, a spring 504, a gauge head guide seat 505, a measuring head 506, a gauge body 507 and a spring chuck 508; the spring 504 is sleeved on the measuring rod 503 and fixed in the meter body 507 through the spring chuck 508 and the nut 502, the tail end of the measuring rod 503 is in threaded connection with the measuring head 506, the measuring head 506 is in contact with the circular positioning pin 402 in fig. 7, the meter head guide seat 505 is fixed with the panel 302 through a screw, the meter head guide seat 505 plays a role in guiding the measuring head 506, the head end of the measuring rod 503 is connected with the dial indicator 501, and when the measuring head 506 is in contact with the circular positioning pin 402, the dial indicator 501 displays a numerical value.
The meter cover tooling further comprises a cone-end set screw 509, and the cone-end set screw 509 is screwed into the meter body 507 to jack the spring chuck 508.
The gauge plate 510 is fixed on the lower bottom surface of the panel 302, and after the gauge plate 510 is screwed into the panel 302, the angle of the gauge sleeve is controlled by the gauge plate 510, so that the top of the measuring head 506 is perpendicular to the blade body of the turbine blade, and the measuring head 506 is ensured to be in point contact with the turbine blade.
The test table cover tool is used for clamping a simulation turbine blade, namely before the test table cover is positioned on the turbine blade, the test table cover is simulated and positioned by the test table cover, and finally the turbine blade is positioned by the test table cover. The specific process is as follows: dial indicator 501 displays a value after head 506 contacts circular alignment pin 402; then the turbine blade is clamped in the positioning and clamping tool, when the measuring head 506 is in contact with the blade body of the turbine blade, the dial indicator 501 also displays a numerical value, the difference value of the two numerical values is large, the turbine blade is not well installed, and the difference value of the two numerical values is small, so that the position of the turbine blade is correct.
It should be noted that, because the blade axes of the inlet and outlet edges of the turbine blade are symmetrical, if the height of the blade axis is determined, the height of the blade body section can be determined, and at this time, a theoretical height exists between the blade body section and the upper surface of the bottom plate 301, and the theoretical height is the difference between the surface cover and the circular positioning pin 402.
The height positioning of the axis of the blade is changed from the original pin positioning into the surface-beating positioning, so that the observation of an operator is facilitated when the side surface of the air inlet side of the turbine blade is ground, and the condition that the height positioning of the axis is inconsistent when the turbine blade is repeatedly clamped is effectively avoided. On the other hand, when the turbine blade air outlet side surface is ground, the degree of freedom of the pressing tooth block 309 is limited by using the first guide block 305 and the second guide block 306, so that the turbine blade air inlet side surface is well attached to the cylindrical pin.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. A turbine blade side grinding positioning and clamping device is characterized by comprising a positioning and clamping tool, a meter-aligning sleeve tool and a test meter sleeve tool; wherein the content of the first and second substances,
the positioning and clamping tool comprises a bottom plate, a panel, a first side positioning plate, a second side positioning plate, a first guide block and a second guide block; wherein, the upper and lower sides of the first side positioning plate and the second side positioning plate are respectively fixedly connected with the panel and the bottom plate, the upper surface of the bottom plate is fixedly provided with a supporting nail, the upper surface of the supporting nail is in contact positioning with the side surface of the grinded air inlet edge, the axis height of the turbine blade is controlled by adjusting the height of the supporting nail, the panel is provided with a through hole matched with the test meter sleeve tool, one side of the first side positioning plate is fixedly connected with a positioning tooth block used for positioning the turbine blade, the tenon tooth part of the positioning tooth block is the same as the tenon tooth molded line of the turbine blade, the first guide block is fixedly connected with the bottom plate and matched with the groove on the bottom plate, the second guide block is fixedly connected with the panel and matched with the groove on the panel, and the groove formed between the first guide block and the second guide block is a guide groove, a pressing tooth block is clamped in the guide groove, a tenon tooth part of the pressing tooth block is ground according to tenon teeth of the turbine blade, the tail part of the pressing tooth block is pressed through a pressing screw on the second side positioning plate, a supporting block is further fixed on the bottom plate, the top end of the supporting block supports the panel, and the distance between the bottom plate and the panel is controlled by adjusting the height of the supporting block, so that a gap required by a mounting part is kept between the first guide block and the second guide block;
the test sheet sleeve tool comprises a test sheet body and a round positioning pin arranged in the test sheet body;
the meter alignment sleeve tooling comprises a dial indicator, a nut, a measuring rod, a spring, a positioning pin, a measuring head, a meter alignment body and a spring chuck; wherein, the spring housing is in on the graduated flask, and pass through collet chuck with the nut is fixed together in to the table body, the tail end of graduated flask with measuring head threaded connection, the measuring head with circular locating pin contact, the head end of graduated flask with the percentage table is connected.
2. The turbine blade side grinding positioning and clamping device as claimed in claim 1, wherein the pair of clamp tools further comprises a conical end set screw, and the conical end set screw is screwed into the pair of clamps to tightly press the spring chuck.
3. The turbine blade side grinding positioning and clamping device as claimed in claim 1, wherein the pair of gauge sleeve tooling further comprises a clamping plate, the clamping plate is fixed on the lower bottom surface of the panel, and after the pair of gauge sleeve is screwed into the panel, the angle of the pair of gauge sleeve is controlled by the clamping plate, so that the top of the measuring head is perpendicular to the blade body of the turbine blade, and the measuring head is ensured to be in point contact with the turbine blade.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921468109.2U CN210307331U (en) | 2019-09-03 | 2019-09-03 | Turbine blade side grinding positioning and clamping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921468109.2U CN210307331U (en) | 2019-09-03 | 2019-09-03 | Turbine blade side grinding positioning and clamping device |
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| CN210307331U true CN210307331U (en) | 2020-04-14 |
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| CN201921468109.2U Active CN210307331U (en) | 2019-09-03 | 2019-09-03 | Turbine blade side grinding positioning and clamping device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706033A (en) * | 2020-12-30 | 2021-04-27 | 德阳六合能源材料有限公司 | Grinding device for production and processing of steam turbine blades |
| 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 |
| CN113020900A (en) * | 2021-01-11 | 2021-06-25 | 重庆江增船舶重工有限公司 | Method for machining turbine blade of axial flow supercharger |
| CN113977406A (en) * | 2021-12-27 | 2022-01-28 | 成都和鸿科技有限公司 | Device for adjusting throat angle of guide vane and using method |
| CN113977456A (en) * | 2021-11-12 | 2022-01-28 | 中国航发贵州黎阳航空动力有限公司 | Tool for machining and detecting sealing tooth grooves of turbine blades |
| CN114654278A (en) * | 2022-05-24 | 2022-06-24 | 成都航利航空科技有限责任公司 | Machining tool and machining method for aero-engine adjusting sheet |
| CN115674015A (en) * | 2022-11-16 | 2023-02-03 | 中国航发动力股份有限公司 | Machining clamp, device and method for hydraulic grinding of inner cavity of turbine working blade |
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2019
- 2019-09-03 CN CN201921468109.2U patent/CN210307331U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706033A (en) * | 2020-12-30 | 2021-04-27 | 德阳六合能源材料有限公司 | Grinding device for production and processing of steam turbine blades |
| 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 |
| CN112706033B (en) * | 2020-12-30 | 2022-04-05 | 德阳六合能源材料有限公司 | Grinding device for production and processing of steam turbine blades |
| CN113020900A (en) * | 2021-01-11 | 2021-06-25 | 重庆江增船舶重工有限公司 | Method for machining turbine blade of axial flow supercharger |
| CN113977456A (en) * | 2021-11-12 | 2022-01-28 | 中国航发贵州黎阳航空动力有限公司 | Tool for machining and detecting sealing tooth grooves of turbine blades |
| CN113977406A (en) * | 2021-12-27 | 2022-01-28 | 成都和鸿科技有限公司 | Device for adjusting throat angle of guide vane and using method |
| CN113977406B (en) * | 2021-12-27 | 2022-05-17 | 成都和鸿科技股份有限公司 | Device for adjusting throat angle of guide blade and using method |
| CN114654278A (en) * | 2022-05-24 | 2022-06-24 | 成都航利航空科技有限责任公司 | Machining tool and machining method for aero-engine adjusting sheet |
| CN114654278B (en) * | 2022-05-24 | 2022-09-06 | 成都航利航空科技有限责任公司 | Machining tool and machining method for aero-engine adjusting sheet |
| CN115674015A (en) * | 2022-11-16 | 2023-02-03 | 中国航发动力股份有限公司 | Machining clamp, device and method for hydraulic grinding of inner cavity of turbine working blade |
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