Blade machining reference conversion pouring device and reference conversion method
阅读说明:本技术 叶片加工基准转换浇注装置及基准转换方法 (Blade machining reference conversion pouring device and reference conversion method ) 是由 张红丽 叶飞 周红梅 陈鹰 盛波 袁良清 于 2019-10-31 设计创作,主要内容包括:本发明公开了一种叶片加工基准转换浇注装置及基准转换方法,叶片加工基准转换浇注装置,包括底板,底板上设置有气缸导轨、叶片定位机构和叶片压紧机构,气缸导轨固设于底板的中部凹槽并沿底板的长度方向布设,叶片定位机构和叶片压紧机构位于底板上表面的同一侧,气缸导轨上设置有低熔合金浇注成型机构,低熔合金浇注成型机构包括腔体块一和腔体块二,腔体块一和腔体块二与气缸导轨连接,通过气缸导轨控制腔体块一和腔体块二的分合模。本发明的叶片加工基准转换浇注装置结构布局合理,节省空间,通过气缸导轨控制腔体块一和腔体块二相向运动或反向运动,实现自动分合模。(The invention discloses a blade machining reference conversion pouring device and a reference conversion method. The blade machining reference conversion pouring device is reasonable in structural layout and space-saving, and the cavity block I and the cavity block II are controlled to move oppositely or reversely by the cylinder guide rail, so that automatic die separation and assembly are realized.)
1. A blade machining benchmark conversion pouring device comprises a bottom plate (1) and is characterized in that,
the bottom plate (1) is provided with a cylinder guide rail (2), a blade positioning mechanism (3) for positioning a blade workpiece and a blade pressing mechanism (4) for pressing the blade workpiece,
the cylinder guide rail (2) is fixedly arranged in a groove in the middle of the bottom plate (1) and is distributed along the length direction of the bottom plate (1), the blade positioning mechanism (3) and the blade pressing mechanism (4) are positioned on the same side of the upper surface of the bottom plate (1),
the low-melting alloy casting forming mechanism (5) is arranged on the cylinder guide rail (2), the low-melting alloy casting forming mechanism (5) comprises a cavity block I (51) and a cavity block II (52), the cavity block I (51) and the cavity block II (52) are arranged on the cylinder guide rail (2), and the cylinder guide rail (2) controls the split-combined die of the cavity block I (51) and the cavity block II (52).
2. The blade machining reference conversion casting device according to claim 1,
a circulating cooling water pipeline (53) is arranged in the wall body of the cavity block I (51), and a connector communicated with the circulating cooling water pipeline (53) is arranged on the wall body of the cavity block I (51) and is used for being connected with an external cooling water source; and/or
And a circulating cooling water pipeline (53) is arranged in the wall body of the second cavity block (52), and a joint communicated with the circulating cooling water pipeline (53) is arranged on the wall body of the second cavity block (52) and is used for being connected with an external cooling water source.
3. The blade machining reference conversion casting device according to claim 1,
a cavity for containing cooling water is arranged in a wall body of the cavity block I (51), the wall body of the cavity block I (51) is uniform in thickness so as to enable the cavity block I (51) to dissipate heat uniformly, a water inlet (531) communicated with the cavity is arranged on the side surface of the cavity block I (51), and a water outlet (532) communicated with the cavity is arranged on the top surface of the cavity block I (51) so as to enable the cavity to be filled with the cooling water;
a cavity for containing cooling water is arranged in the wall body of the second cavity block (52), the wall body of the second cavity block (52) is uniform in thickness so that the second cavity block (52) can dissipate heat uniformly, a water inlet (531) communicated with the cavity is formed in the side surface of the second cavity block (52), and a water outlet (532) communicated with the cavity is formed in the top surface of the second cavity block (52) so that the cavity is filled with the cooling water.
4. Blade machining reference conversion casting device according to claim 2 or 3,
the low-melting alloy casting molding mechanism (5) further comprises a first profile baffle (54), a second profile baffle (55), a third profile baffle (56) and a fourth profile baffle (57), wherein the first profile baffle (54) and the second profile baffle (55) are fixed on the first cavity block (51), the third profile baffle (56) and the fourth profile baffle (57) are fixed on the second cavity block (52), the combined shape of the first profile baffle (54) and the third profile baffle (56) is consistent with the corresponding cross section of the blade, and the combined shape of the second profile baffle (55) and the fourth profile baffle (57) is consistent with the corresponding cross section of the blade.
5. The blade machining reference conversion casting device according to claim 4,
the cavity block I (51) is provided with at least one detection hole for detecting the blade profile position of the blade workpiece, the detection hole is provided with a measuring rod (58), the measuring rod (58) is sleeved with a compression spring (59) and a threaded sleeve (510) for adjusting the position of the measuring rod (58), the measuring rod (58) is connected and matched with a sensor (511) to achieve the detection purpose,
the cavity block II (52) is provided with at least one detection hole for detecting the blade profile position of the blade workpiece, the detection hole is provided with a measuring rod (58), the measuring rod (58) is sleeved with a compression spring (59) and a threaded sleeve (510) for adjusting the position of the measuring rod (58), and the measuring rod (58) is connected with a sensor (511) and matched to achieve the detection purpose.
6. The blade machining reference conversion casting device according to claim 5,
the low-melting alloy casting molding mechanism (5) further comprises a plurality of gauge stands (512) used for installing and fixing the sensors (511), the number of the gauge stands (512) is the same as that of the measuring rods (58), the gauge stands (512) are fixedly arranged on the cylinder guide rail (2) and correspond to the positions of the measuring rods (58) one by one, and the sensors (511) penetrate through the gauge stands (512) and are matched with the measuring rods (58) during detection.
7. The blade machining reference conversion casting device according to claim 6,
the low-melting alloy casting forming mechanism (5) further comprises a reference base (513) used for carrying out die assembly positioning on the first cavity block (51) and the second cavity block (52), wherein the reference base (513) is fixedly arranged on the bottom plate (1) and located between the blade positioning mechanism (3) and the blade pressing mechanism (4), and during die assembly, the reference base (513) is attached to the first cavity block (51) and the second cavity block (52) respectively, so that the low-melting alloy casting forming mechanism (5) is enclosed to form a casting cavity.
8. The blade machining reference conversion casting device according to claim 7,
be equipped with on benchmark seat (513) and be used for carrying out the branch pin (514) and adjustable branch pin (515) that fix a position to the blade work piece and be used for restricting rotatory backing pin (519) of blade, branch pin (514) with backing pin (519) all set up the first end of keeping away from blade positioning mechanism (3) and blade hold-down mechanism (4) on benchmark seat (513), adjustable branch pin (515) set up the second end that is close to blade positioning mechanism (3) and blade hold-down mechanism (4) on benchmark seat (513), adjustable branch pin (515) set up in the square groove by the restriction rotation, adjustable branch pin (515) are connected fine setting nut (521), through fine setting nut (521) are adjusted the axial position of adjustable branch pin (515).
9. The blade machining reference conversion casting device according to any one of claims 5 to 8,
the blade positioning mechanism (3) comprises a support (31) fixedly arranged on a bottom plate (1), a first positioning pin (32) which is arranged on the support (31) and is in gapless sliding fit with the support (31), and a second positioning pin (34) which is fixed with a positioning support plate (33) on the support (31), wherein the first positioning pin (32) is connected with a star nut (35), the first positioning pin (32) is slidably adjusted through the star nut (35), and the first positioning pin (32) and the second positioning pin (34) are in point contact limiting with a blade workpiece.
10. The blade machining reference conversion casting device according to claim 9,
the cross section of the first positioning pin (32) is diamond-shaped or flat so as to prevent the first positioning pin from rotating relative to the support (31).
11. The blade machining reference conversion casting device according to any one of claims 5 to 8,
blade hold-down mechanism (4) is including setting firmly a piece (41) on bottom plate (1), be equipped with eccentric wheel (42), pressure transmission ejector pin (43) and cover on piece (41) and establish spring (44) on pressure transmission ejector pin (43), the one end of pressure transmission ejector pin (43) with eccentric wheel (42) butt, the other end and the blade work piece contact of pressure transmission ejector pin (43), through the rotation of eccentric wheel (42) in order to right pressure transmission ejector pin (43) apply axial pressure and compress tightly the blade work piece or remove and apply to the axial pressure of pressure transmission ejector pin (43) loosens the blade work piece, and exert the elastic force so that remove behind the axial pressure through spring (44) pressure transmission ejector pin (43) elasticity resets.
12. The blade machining reference conversion casting device according to claim 11,
the pressure transmission ejector rod (43) and the support block (41) keep a fit clearance of 0.01-0.02 mm, so that the stability of a workpiece is guaranteed to be pressed.
13. The datum conversion method adopting the blade machining datum conversion pouring device as claimed in any one of claims 2 to 12, characterized by comprising the following steps:
s1, connecting the first cavity block (51) and the second cavity block (52) with external cooling water before use, connecting a control valve (21) of the cylinder guide rail (2) with an external air source, and installing a qualified standard blade sample piece to adjust the position degree of the blade profile of the blade through an electric induction measuring instrument;
s2, removing burrs on the blade workpiece, placing the workpiece at the blade mounting position, adjusting the adjustable positioning piece of the blade positioning mechanism (3) to zero according to the digital error displayed on the electric inductance measuring instrument, and then adjusting the blade pressing mechanism (4) to press and fix the blade workpiece;
s3, after the blade workpiece is installed, whether each positioning point of the blade workpiece is accurately positioned is checked, if not, the blade workpiece and the positioning piece are adjusted until each positioning point is accurately positioned;
and S4, after positioning points of the blade workpiece are accurately positioned, controlling the cylinder guide rail (2) to drive the cavity block I (51) and the cavity block II (52) to be closed to form a casting cavity, injecting low-melting alloy liquid, cooling and solidifying, and taking out to complete the datum conversion.
Technical Field
The invention relates to the technical field of machining, in particular to a blade machining reference conversion pouring device and a blade machining reference conversion method.
Background
The working blade of the power turbine with a certain turboprop model has the characteristics of small tenon and long and thin blade, the existing processing clamping mode is unstable in positioning and easy to press and deform, the tenon teeth processed by six-point positioning cannot ensure the position degree of the blade profile, the sawteeth of the blade crown are processed by the tenon teeth in a positioning way, the fluctuation is about 0.5mm, the processing can be adjusted only by coarse grinding, metering and fine grinding, and the processing quality and progress are seriously influenced.
With the industrial progress and the increasing popularization of automatic production, the machining of the working blade of the power turbine is required to be capable of converting the machining reference in a certain feasible and effective mode, and multiple processes are combined to improve the machining quality and the production efficiency of the blade. In the existing grinding processing of guide blades of certain turboprop models, a poured low-melting alloy block is always used as a rough processing reference, but due to the fact that an assembled pouring structure is rough and a manual clamping method is backward, the pouring reference precision is low, and the requirement of the processing reference of a power turbine working blade cannot be met.
Disclosure of Invention
The invention provides a blade machining datum conversion pouring device and a datum conversion method, and aims to solve the technical problems that an existing assembly type pouring structure manual clamping method is backward, the pouring precision is low, and the requirement of a power turbine working blade machining datum cannot be met.
According to one aspect of the invention, a blade machining reference conversion pouring device is provided, and comprises a bottom plate, wherein a cylinder guide rail, a blade positioning mechanism for positioning a blade workpiece and a blade pressing mechanism for pressing the blade workpiece are arranged on the bottom plate, the cylinder guide rail is fixedly arranged in a middle groove of the bottom plate and is arranged along the length direction of the bottom plate, the blade positioning mechanism and the blade pressing mechanism are arranged on a boss on the same side of the bottom plate, a low-melting alloy casting forming mechanism is arranged on the cylinder guide rail, the low-melting alloy casting forming mechanism comprises a cavity block I and a cavity block II, the cavity block I and the cavity block II are connected with the cylinder guide rail, and the cylinder guide rail is used for controlling the cavity block I and the cavity block II to be separated and combined.
Furthermore, a circulating cooling water pipeline is arranged in the wall body of the cavity block I, and a joint communicated with the circulating cooling water pipeline is arranged on the wall body of the cavity block I and is used for being connected with an external cooling water source; and/or
And a circulating cooling water pipeline is arranged in the wall body of the cavity block II, and a joint communicated with the circulating cooling water pipeline is arranged on the wall body of the cavity block II and is used for being connected with an external cooling water source.
Furthermore, a cavity for containing cooling water is arranged in a wall body of the first cavity block, the wall body of the first cavity block is uniform in thickness so as to enable the first cavity block to dissipate heat uniformly, a water inlet is formed in the side face of the first cavity block, and a water outlet is formed in the top face of the first cavity block so as to enable the cavity to be filled with the cooling water;
a cavity for containing cooling water is arranged in the wall body of the cavity block II, the wall body of the cavity block II is uniform in thickness so as to enable the cavity block II to dissipate heat uniformly, a water inlet communicated with the cavity is formed in the side face of the cavity block II, and a water outlet communicated with the cavity is formed in the top face of the cavity block II so as to enable the cavity to be filled with the cooling water.
Furthermore, the low-melting alloy casting molding mechanism further comprises a first profile baffle, a second profile baffle, a third profile baffle and a fourth profile baffle, the first profile baffle and the second profile baffle are fixed on the first cavity block, the third profile baffle and the fourth profile baffle are fixed on the second cavity block, the shape of the combination of the first profile baffle and the third profile baffle is consistent with the corresponding section of the blade, and the shape of the combination of the second profile baffle and the fourth profile baffle is consistent with the corresponding section of the blade.
Furthermore, at least one detection hole used for detecting the blade profile position of the blade workpiece is formed in the first cavity block, a measuring rod is arranged on the detection hole, a compression spring and a threaded sleeve used for adjusting the position of the measuring rod are sleeved on the measuring rod, the measuring rod is connected with the sensor and matched with the sensor to achieve the detection purpose, at least one detection hole used for detecting the blade profile position of the blade workpiece is formed in the second cavity block, the measuring rod is arranged on the detection hole, the compression spring and the threaded sleeve used for adjusting the position of the measuring rod are sleeved on the measuring rod, and the measuring rod is connected with the sensor and matched with the sensor to achieve the detection purpose.
Further, the low-melting alloy casting and forming mechanism further comprises a plurality of gauge racks used for installing and fixing the sensors, the number of the gauge racks is the same as that of the measuring rods, the gauge racks are fixedly arranged on the cylinder guide rail and correspond to the positions of the measuring rods one by one, and the sensors are arranged on the gauge racks in a penetrating mode and are used for being matched with the measuring rods during detection.
The low-melting alloy casting forming mechanism further comprises a reference seat used for carrying out die assembly positioning on the first cavity block and the second cavity block, the reference seat is fixedly arranged on the bottom plate and is located between the blade positioning mechanism and the blade pressing mechanism, and during die assembly, the reference seat is respectively attached to the first cavity block and the second cavity block so that the low-melting alloy casting forming mechanism can enclose to form a casting cavity.
Further, be equipped with on the reference base and be used for carrying out the back pin and the adjustable back pin that fix a position and be used for restricting the rotatory backing pin of blade to the blade work piece, the back pin with the backing pin all sets up the first end of keeping away from blade positioning mechanism and blade hold-down mechanism on the reference base, the second end that is close to blade positioning mechanism and blade hold-down mechanism is held to the adjustable back pin setting on the reference base, the adjustable back pin setting is restricted rotatoryly in the square groove, adjustable back pin connection fine setting nut, through fine setting nut adjusts the axial position of adjustable back pin.
Furthermore, the blade positioning mechanism comprises a support fixedly arranged on the bottom plate, a first positioning pin and a second positioning pin, wherein the first positioning pin is arranged on the support and is in gapless sliding fit with the support, the second positioning pin is fixed with a positioning support plate on the support, the first positioning pin is connected with a star nut, the first positioning pin is adjusted in a sliding mode through the star nut, and both the first positioning pin and the second positioning pin are in point contact limiting with the blade workpiece.
Further, the cross section of the first positioning pin is diamond-shaped or flat, so that the first positioning pin is prevented from rotating relative to the support.
Further, the blade pressing mechanism comprises a support block fixedly arranged on the bottom plate, an eccentric wheel, a pressure transmission ejector rod and a spring sleeved on the pressure transmission ejector rod are arranged on the support block, one end of the pressure transmission ejector rod is abutted to the eccentric wheel, the other end of the pressure transmission ejector rod is in contact with the blade workpiece, the pressure transmission ejector rod is rotated to apply axial pressure to the pressure transmission ejector rod to press the blade workpiece or release the axial pressure applied to the pressure transmission ejector rod to loosen the blade workpiece, and elastic force is applied through the spring to enable the pressure transmission ejector rod to elastically reset after the axial pressure is released.
Further, the pressure transmission ejector rod and the support block keep a fit clearance of 0.01-0.02 mm, so that the stability of a workpiece is guaranteed to be compressed.
According to another aspect of the invention, a datum conversion method using the above vane machining datum conversion pouring device is provided, and comprises the following steps:
s1, connecting the cavity block I and the cavity block II with external cooling water before use, connecting a control valve of the cylinder guide rail with an external air source, installing a qualified standard blade sample piece, and aligning the table through an electric inductance measuring instrument to adjust the position degree of the blade profile of the blade;
s2, removing burrs on the blade workpiece, placing the workpiece at the blade mounting position, adjusting an adjustable positioning piece of the blade positioning mechanism according to the digital error displayed on the electric inductance measuring instrument, and then adjusting the blade pressing mechanism to press and fix the blade workpiece;
s3, after the blade workpiece is installed, whether each positioning point of the blade workpiece is accurately positioned is checked, if not, the blade workpiece and the adjustable positioning piece are adjusted until each positioning point is accurately positioned;
and S4, after positioning points of the blade workpiece are accurately positioned, controlling the cylinder guide rail to drive the cavity block I and the cavity block II to be closed to form a casting cavity, injecting low-melting alloy liquid, cooling and solidifying, and taking out to complete reference conversion.
The invention has the following beneficial effects:
according to the blade machining reference conversion pouring device, the base plate is a basic component of the blade machining reference conversion pouring device and plays a role in supporting and fixing, the cross section of the base plate is concave, the middle groove is used for arranging the cylinder guide rail, and the bosses on the two sides are used for arranging the blade positioning mechanism, the blade pressing mechanism and the low-melting alloy casting forming mechanism, so that the structural layout is reasonable, and the space is saved. The first cavity block and the second cavity block are low-melting alloy casting molding components, the first cavity block and the second cavity block are combined together to form a low-melting alloy casting cavity, and the first cavity block and the second cavity block are controlled to move oppositely or reversely by the cylinder guide rail, so that automatic die separation and assembly are realized. The blade machining reference conversion pouring device is simple in structure and easy and convenient to operate, and the working efficiency is improved.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a blade machining datum transition casting device according to a preferred embodiment of the invention;
FIG. 2 is a front view of a blade machining datum converting casting device in accordance with a preferred embodiment of the present invention;
FIG. 3 is a sectional view A-A of FIG. 2;
FIG. 4 is a top view of a blade machining datum converting casting device in accordance with a preferred embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line D-D of FIG. 4;
FIG. 6 is a schematic structural view of a blade machining datum transition casting device according to a preferred embodiment of the invention;
FIG. 7a is a schematic view of the structure in a chamber block;
FIG. 7b is a front view of the cavity block of FIG. 7 a;
FIG. 7c is a cross-sectional view A-A of FIG. 7 b;
FIG. 7d is a cross-sectional view B-B of FIG. 7B;
fig. 8 is a schematic view of the construction of the first and third profile baffles;
fig. 9 is a schematic view of the second profile guard and the fourth profile guard.
Illustration of the drawings:
1. a base plate; 11. a support leg; 2. a cylinder guide rail; 21. a control valve; 3. a blade positioning mechanism; 31. a support; 32. a first positioning pin; 33. positioning a support plate; 34. a second positioning pin; 35. a star-shaped nut; 4. a blade hold-down mechanism; 41. supporting a block; 42. an eccentric wheel; 43. a pressure transmission ejector rod; 44. a spring; 5. a low-melting alloy casting molding mechanism; 51. a cavity block I; 52. a cavity block II; 53. a circulating cooling water pipeline; 531. a water inlet; 532. a water outlet; 54. a first profile guard; 55. a second profile baffle; 56. a third profile guard; 57. a fourth profile guard; 58. a measuring rod; 59. a compression spring; 510. a threaded sleeve; 511. a sensor; 512. a watch frame; 513. a reference base; 514. a support pin; 515. an adjustable support pin; 516. a connecting plate; 517. a watch case assembly; 518. a meter jaw screw member; 519. a stop pin; 520. a threaded plug; 521. fine adjustment of the nut; 522. a bushing.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.
As shown in fig. 1 to 6, the blade machining reference conversion casting device of this embodiment includes a
In this embodiment, the
Referring to fig. 1, the cross section of the
In this embodiment, a circulating
In another embodiment, referring to fig. 7a-7d, the cavity block (comprising
The effectiveness of cooling is related to the temperature and flow rate of the circulating cooling water and can be simply expressed by the following formula:
Qgold (Au)=CGold (Au)MGold (Au)△TGold (Au)
QWater (W)=CWater (W)MWater (W)△TWater (W)
QGold (Au)=QWater (W)+QDecrease in the thickness of the steel
Wherein:
Qgold (Au)Is the heat released by the solidification of the low melting point alloy;
Qdecrease in the thickness of the steelThe heat quantity taken away by air, a container and the like when the low-melting-point alloy is solidified;
Cgold (Au)、CWater (W)The specific heat capacities of the low-melting-point alloy and water respectively;
Mgold (Au)Mass of the low melting point alloy mass;
Mwater (W)The mass of cooling water required for solidifying the low melting point alloy;
△Tgold (Au)The temperature change value of the low-melting-point alloy from liquid to solid is shown, for example, the melting point of the tin-bismuth alloy in the ratio of 1: 1 is 160 ℃, and the tin-bismuth alloy is solid at normal temperature, so △ T gold is approximately equal to 140 ℃;
△Twater (W)Is the change value of the temperature of the cooling water from the preset low temperature to the solidifying point of the low-melting-point alloy.
Because of CGold (Au)、CWater (W)、MGold (Au)、MWater (W)、△TGold (Au)、QDecrease in the thickness of the steelIs a constant value and is provided with a constant value,
therefore △ TWater (W)=(CGold (Au)MGold (Au)△TGold (Au)-QDecrease in the thickness of the steel)/CWater (W)MWater (W)
I.e. a preset temperature of the circulating cooling water is also possible, which is also dependent on the speed of the cooling water flow.
In the invention, the water temperature of the circulating cooling water in the cavity block is determined according to the heat released by the solidification of the low-melting-point alloy block, and is not very low, so that the quality and the stability of the low-melting-point alloy can be ensured. The temperature and flow rate of the circulating cooling water are controlled by the constant temperature refrigeratorThe water inlet and outlet pipes and the refrigerating system form a loop, so that cooling water always flows circularly to ensure QWater (W)M in (1)Water (W)(ii) a The temperature of the low-melting-point alloy is also ensured by a special temperature control furnace, and a heating and heat-preserving device is arranged around the pouring gate to ensure the uniform flow of the low-melting-point alloy.
In this embodiment, referring to fig. 6 and 7a, the side surfaces of the
Referring to fig. 2 and 8 to 9, in the embodiment, the low-melting alloy casting molding mechanism 5 further includes a
Referring to fig. 4 and 5, in this embodiment, at least one detection hole for detecting the blade profile position of the blade workpiece is formed in the
Referring to fig. 4, the method for detecting the cooperation of the sensor and the measuring rod includes: the contact of the
In the embodiment, the measuring
Referring to fig. 1, 4 and 5, in the embodiment, the low-melting alloy casting and molding mechanism 5 further includes a plurality of gauge stands 512 for mounting and fixing the
In this embodiment, the low-melting alloy casting molding mechanism 5 further includes a
In this embodiment, the
As shown in fig. 2 to 5, the vane is completely positioned through six points a1, a2, A3, B1, B2 and C1, A3 point limits the rotation of the vane, and A3 point is arranged on the back trailing edge of the vane, is realized by a
Referring to fig. 1 and 2, in the present embodiment, the
Referring to fig. 2, in the present embodiment, the blade pressing mechanism 4 includes a
The
The standard conversion method for converting the blade machining standard conversion pouring device comprises the following steps:
s1, before use, the
S2, removing burrs on the blade workpiece, placing the workpiece at a blade mounting position, adjusting the adjustable positioning pieces (the
s3, after the blade workpiece is installed, whether six positioning points (A1, A2, A3, B1, B2 and C1) of the blade workpiece are accurately positioned is checked, if not, the blade workpiece and the adjustable positioning points are adjusted until all the positioning points are accurately positioned, and the method specifically comprises the steps of checking whether the blade workpiece is attached to a second positioning pin 34 (2), the
and S4, after the six positioning points of the blade workpiece are accurately positioned, opening the
According to the blade processing reference conversion method, automatic die opening and closing is realized through the cylinder guide rail, blade reference conversion is completed, the structure and operation of a pouring device are simplified, and the working efficiency is improved; the six-point positioning fixed blade is adopted, and the adjustable positioning structure design is carried out on three points (A1, A2 and B1) through the monitoring of the sensor, so that the error caused by the blade blank is reduced, the position degree of the blade profile is adjusted by adopting the standard blade, and the batch production feasibility of pouring can be ensured; the blade profile monitoring detection is carried out by adopting a sensor for adjustment, so that the problem of inconsistent profile of a blank blade is solved, and the position precision of a low-melting alloy datum relative to the blade profile stacking center is ensured, thereby completing the conversion of a blade processing datum; the shrinkage consistency of the low-melting alloy is ensured by cooling through circulating cooling water, so that the consistency of the converted reference is ensured. After the blade casting mold is put into use, the problem that the blade machining datum is difficult to convert is effectively solved, the casting efficiency is high, the consistency is good, the process requirements are met, the production requirements are met, and the blade casting mold is worthy of popularization and application.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
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