Wire cutting processing device

Abstract

The present application relates to the field of wire cutting technology, and specifically discloses a wire cutting processing device, including a base installed on a wire cutting machine tool, a positioning part for positioning the blade body at six points on the base, and a pressure head is provided above the positioning part to limit and fix the part; the surface to be processed on the part is a vertical plane, and the molybdenum wire on the cutting machine uses the side of the base under the surface to be processed as the positioning reference plane, and the molybdenum wire is set to be horizontal when cutting the surface to be cut. The purpose of this patent is to solve the disadvantages of complex processing, difficult to clean residue, high cost and complex device when transferring the positioning reference through traditional low-temperature alloy pouring.

Description

Technical Field

[0001] The present invention relates to the technical field of wire cutting, and in particular to a wire cutting processing device. Background Art

[0002] The turbine guide vane of an aircraft engine is composed of a number of high-guide vanes evenly distributed in the circumferential direction to form an annular structure. It is a stator part of the turbine. The turbine guide vane is mainly composed of blades, inner and outer rings and other components. Several blades are usually processed as independent parts and positioned and installed between the inner and outer rings. Therefore, large and small mounting plates that match the inner and outer rings are provided at both ends of the blades. That is, the relative relationship between the blades is determined by the matching relationship between the mounting plate and the inner and outer rings. This puts forward requirements for the processing accuracy of the mounting plate. Usually, the processing accuracy of the mounting plate needs to be controlled within 0.01mm.

[0003] The large and small mounting plates for the high-guide vanes are arranged in a diamond-shaped configuration. When installing the high-guide vanes, it's important to ensure they are evenly distributed and arranged in a ring-like pattern. This distribution plays a crucial role in aligning the mounting edges (i.e., the short sides of the large and small mounting plates) on either side of the blade's main edge with the inner and outer rings during installation.

[0004] In the field of blade processing, the current common processing methods have many problems. Blades are usually formed by casting and a single-side allowance of 1.5-2mm is reserved. Due to the irregular shape and structure of the blade body, high precision requirements and small thickness, manual grinding is mainly used to correct the blade body. After grinding, the mounting plate needs to be milled and ground. The mounting plate plays a positioning role for the installed blade body, so the milling and grinding mounting plate needs to use the blade body as the positioning basis. However, due to the large force during the milling and grinding process and the thin blade body, this can easily lead to blade deformation. In order to solve this problem, when milling the mounting plate, the positioning reference on the blade body is usually transferred to the mounting plate by rotation positioning. At present, rotation positioning usually uses six-point positioning to position the blade body, and then pours low-temperature alloy on the mounting plate side, using the formed low-temperature alloy side as the positioning reference. After completing the milling and grinding process, the low-temperature alloy is melted away.

[0005] However, the infusion of low-temperature alloys requires a relatively high cost investment, including the procurement of low-temperature alloy materials and the equipment and technical support required for the infusion process. Secondly, the entire process is lengthy and complicated. From the six-point positioning of the blades, to the infusion and solidification of the low-temperature alloy, to the subsequent milling and grinding and melting of the low-temperature alloy, each link requires a lot of time and manpower, which seriously affects production efficiency. Furthermore, due to the large number of process steps, the required equipment is also relatively complex. Not only are special infusion equipment and melting equipment required, but it is also necessary to ensure the coordinated operation of various equipment, which undoubtedly increases the purchase, maintenance and management costs of the equipment. Finally, the infusion of low-temperature alloys is prone to produce excess materials, which may have an adverse effect on processing accuracy and product quality, and also increase the workload of subsequent cleaning and inspection. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the technical problem solved by the present invention is to provide a wire cutting processing device, which effectively overcomes the disadvantages of complex processing, difficult to clean residue, high cost and complex device when transferring positioning references through traditional pouring of low-temperature alloys.

[0007] In order to solve the above problems, the technical solution adopted by the present invention is: a wire cutting processing device, including a base installed on a wire cutting machine tool, a positioning part for positioning the blade body at six points on the base, and a pressure head is provided above the positioning part to press the blade body and position the mounting plate on both sides of the positioning part; the surface to be processed is located on the mounting edge of the mounting plate and on the vertical plane, and the molybdenum wire on the cutting machine uses the side of the base under the surface to be processed as the positioning reference plane, and the wire cutting direction of the molybdenum wire is horizontal when cutting the surface to be cut.

[0008] The principle of this solution is that the blade body is positioned at six points through the positioning part on the base, which can accurately and stably determine the position of the blade in the processing space, avoiding unnecessary movement or rotation during the processing. The pressure head located above the positioning part further limits and fixes the part, thereby enhancing the stability of the part during processing and reducing position deviations caused by vibration or external forces. Since the surface to be processed on the part is a vertical plane, the side of the base is used as the positioning reference plane, which provides a clear and reliable reference for the wire feeding of the molybdenum wire. The molybdenum wire is cut in the horizontal wire feeding method to cut the cutting surface. This horizontal wire feeding can ensure the consistency and accuracy of the cutting, and reduce the cutting error caused by unstable or irregular wire feeding direction.

[0009] The entire solution comprehensively considers positioning, fixation and wire feeding methods, so that high-precision, high-efficiency and high-stability processing effects can be achieved during the blade wire cutting process.

[0010] The beneficial effects of this program are:

[0011] (1) Low processing cost. In the existing technology, the method of pouring low-temperature alloy is used to perform secondary positioning of parts. The cost of low-temperature alloy materials is high, and the cost of pouring and core removal processes is also relatively high. However, this solution adopts wire cutting processing, which does not require the use of low-temperature alloy materials, avoids high material and process costs, and thus reduces processing costs. At the same time, wire cutting processing does not produce excess materials, avoiding the additional cost of cleaning excess materials.

[0012] (2) High processing efficiency. In the existing technology, the solidification and subsequent processing of low-temperature alloys require a certain amount of time, which increases the production time. However, in this solution, wire cutting can quickly complete the benchmark processing, greatly shortening the production cycle and improving production efficiency. The processing parameters of wire cutting can be precisely controlled, so that the blade benchmark processed each time has higher consistency and repeatability, reducing the time wasted due to adjusting the processing parameters, further improving the processing efficiency. In addition, during the wire cutting process, there is no large force when the molybdenum wire cuts the mounting plate, causing deformation or damage.

[0013] (3) The processing flow is streamlined. The existing method of pouring low-temperature alloys is relatively complicated, and alloy overflow or unnecessary residue may form inside the parts, which is difficult to clean. However, this solution uses wire cutting to re-locate the reference for processing after six-point positioning. The whole process is relatively simple and does not require complex pouring and core removal processes, which reduces the tedious links in the processing flow and realizes the streamlining of the processing flow. In addition, wire cutting does not require a lot of force to limit the parts, which reduces the risk of part deformation and further improves the reliability and stability of the processing.

[0014] Furthermore, the positioning portion includes a supporting middle plate, a supporting side plate, a side positioning pin, a first positioning plate, a second positioning plate, and an inclined portion. The supporting side plate is provided with a side positioning pin located in the middle position thereof close to the right end surface and fixedly connected thereto; a supporting middle plate is provided between the supporting side plate and the pressure plate seat, and the supporting middle plate is provided with a first positioning plate and a second positioning plate which form a Y-shaped structure with a limiting groove. One end of the first positioning plate and the second positioning plate are inclined surfaces arranged in an inner eight, and the supporting surfaces of the two are arranged in parallel. The positioning device is installed on the online cutting machine tool to perform six-point positioning on the blade. Position, the plane formed by the length direction and the feed direction of the wire cutting tool coincides with the surface to be processed of the mounting plate of the high guide vane, and the six-point positioning of the blade is achieved through the coordinated action of multiple components such as the supporting side plate, the side locating pins, the first locating plate, and the second locating plate, which can fix the position of the blade more stably and accurately, reduce the displacement and deviation during the processing, and improve the processing accuracy. The plane formed by the length direction and the feed direction of the wire cutting tool coincides with the surface to be processed of the mounting plate of the high guide vane, making the feed of the tool smoother and more accurate, which is conducive to improving the processing efficiency and accuracy.

[0015] Furthermore, a pressure plate seat is provided on the base, and an inclined portion with an inclined angle is fixed on the pressure plate seat. The inclined portion is provided with a pressure plate screw which is vertically connected to and passes through the pressure plate screw. A pressure plate head is provided at the lower end of the pressure plate screw. Through the vertical connection of the pressure plate screw on the inclined portion, the position of the pressure plate head and the amount of pressure applied can be flexibly adjusted to adapt to workpieces of different sizes and shapes, ensuring a good fixing effect. Due to the presence of the inclined portion, the pressure plate device can better adapt to the inclination of the workpiece surface, ensure uniform pressure distribution, enhance the reliability of fixation, and at the same time be applicable to a variety of workpieces with different inclined surfaces or special shapes, thereby increasing the versatility and applicability of the equipment.

[0016] Furthermore, the base has a cross-shaped structure, including a thin cross portion and a thick cross portion. The supporting side panels and the pressure plate seat are respectively installed at both ends of the thin cross portion, and the supporting middle plate is fixed to the thick cross portion. The cross-shaped base structure, the thin cross portion and the thick cross portion are designed to reasonably distribute weight and provide support force according to the functions and stress conditions of different components. The thin cross portion is used to install the relatively light supporting side panels and the pressure plate seat, which mainly play a positioning role, while the thick cross portion is responsible for fixing the heavier supporting middle plate, which plays a primary supporting role. This makes the force of the entire structure more uniform and stable. Through the different thickness designs, stronger support and connection are provided at key locations, enhancing the overall structural strength and stability of the base, and better able to withstand various forces and vibrations during the processing process.

[0017] Furthermore, the pressure plate seat and the supporting side plates are both arranged perpendicular to the supporting middle plate, the supporting side plates are fitted with the supporting middle plate, there is a gap between the pressure plate seat and the supporting middle plate, and the supporting side plates are fitted with the supporting middle plate, which provides more stable support for the sides of the blades and helps to position the blades more accurately.

[0018] Furthermore, the pressure plate screw is arranged perpendicularly to the inclined portion. The perpendicular arrangement ensures that the pressure applied by the pressure plate screw can be directly and effectively transmitted to the pressed object, reducing the dispersion and loss of force, thereby enhancing the fixing effect on the parts.

[0019] Furthermore, the first positioning plate and the second positioning plate are arranged in a Y-shaped structure with each other, and there are two of them. The two Y-shaped structures can position the blade from different directions and positions, increase the contact points and support points for positioning, and limit the movement of the blade in all directions, thereby providing a more stable and reliable positioning effect, and can better adapt to the complex shape and contour of the blade, especially for blades with irregular shapes, which can fit more closely and improve the accuracy of positioning.

[0020] Furthermore, the top of the supporting middle plate is an inclined conical structure along one end of the pressure plate head. The inclined conical structure can avoid interference with the top of the supporting middle plate during the downward pressing process of the pressure plate head, ensuring that the pressure plate head can smoothly apply pressure to the parts and improve the convenience of operation.

[0021] Furthermore, the pressure plate head is made of aluminum material, which reduces the impact on parts. Aluminum is relatively soft and is not easy to cause scratches, indentations or other physical damage on the surface of parts when it comes into contact with parts, thereby protecting the surface quality of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the clamping parts of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the present invention;

[0025] Figure 4 It is a top view of the structure of the present invention;

[0026] Figure 5 It is a left side view of the present invention;

[0027] Figure 6 It is a right side view of the present invention;

[0028] Figure 7 It is a left side view of the parts clamping of the present invention;

[0029] Figure 8 It is a schematic diagram of parts clamping of the present invention;

[0030] Figure 9 It is a structural schematic diagram of the positioning part in the present invention. DETAILED DESCRIPTION

[0031] The reference numerals in the drawings of the specification include: base 1, pressure plate seat 2, support middle plate 3, support side plate 4, pressure plate screw 5, pressure plate head 6, side positioning pin 7, first positioning plate 8, second positioning plate 9, inclined portion 10, hexagonal nut 11, support surface 12, Y-shaped groove 13, part 14, thin cross portion 15, thick cross portion 16, first cutting surface 17, second cutting surface 18, third cutting surface 19, fourth cutting surface 20, positioning portion 21

[0032] Example 1

[0033] Basically as attached Figure 1-9As shown: A wire cutting processing device includes a base 1 installed on a wire cutting machine tool. The base 1 has a cross-shaped structure, including a thin cross portion 15 and a thick cross portion 16. Support side plates 4 and a pressure plate seat 2 are respectively installed at both ends of the thin cross portion 15. A support middle plate 3 is fixed on the thick cross portion 16. This structure makes the base 1 more evenly and stably stressed, can better withstand various forces and vibrations during processing, enhance the structural strength of the base 1, and ensure stable support.

[0034] At the same time, the surface to be processed on the part 14 is a vertical plane, through which are the first cutting surface 17, the second cutting surface 18, the third cutting surface 19 and the fourth cutting surface 20. The molybdenum wire on the cutting machine uses the side of the base 1 under the surface to be processed as the positioning reference plane, and the molybdenum wire is set to be horizontal when cutting the surface to be cut.

[0035] The supporting side plate 4 is provided with a side locating pin 7 located in the middle position near the right end face and fixedly connected thereto, a supporting middle plate 3 is provided between the supporting side plate 4 and the pressure plate seat 2, and the supporting middle plate 3 is provided with a first positioning plate 8 and a second positioning plate 9 which form a Y-shaped structure with a Y-shaped groove 13. There are two of them, one end of which is an inner eight-shaped cross-slope inclined surface, and the supporting surfaces 12 of the two are cross-parallel. The positioning part is installed on the base to perform six-point positioning of the blade. The plane formed by the feed direction of the wire-cut molybdenum wire coincides with the surface to be processed of the mounting plate of the high-guide blade, which can more accurately fix the blade position, reduce displacement and deviation during processing, improve processing accuracy, make the tool feed smoother and more accurate, improve processing efficiency, achieve precise positioning, and improve processing accuracy and efficiency.

[0036] A pressure plate seat 2 is provided on the base 1, and an inclined portion 10 with an inclined angle is fixed on the pressure plate seat 2. A pressure plate screw 5 is provided on the inclined portion 10, which is vertically matched and connected to the pressure plate seat and passes through the pressure plate seat. A pressure plate head 6 is provided at the lower end of the pressure plate screw 5. By adjusting the position of the pressure plate screw 5 on the inclined portion 10, the pressure size and position of the pressure plate head 6 can be flexibly changed to adapt to workpieces of different sizes and shapes, ensure uniform pressure distribution, enhance fixation reliability, and be suitable for a variety of workpieces with different inclined surfaces or special shapes. It can flexibly adapt to different workpieces and ensure stable fixation.

[0037] The pressure plate seat 2 and the supporting side plate 4 are both arranged perpendicular to the supporting middle plate 3. The supporting side plate 4 fits well with the supporting middle plate 3, providing more stable support for the blade side and helping to accurately position the blade. There is a gap between the pressure plate seat 2 and the supporting middle plate 3, which is convenient for adjustment and maintenance, improves positioning accuracy, and is easy to operate and maintain.

[0038] The pressure plate screw 5 is arranged perpendicular to the inclined portion 10 to ensure that the pressure is directly and effectively transmitted to the pressed object, thereby enhancing the fixing effect and the fixing stability.

[0039] The first positioning plate 8 and the second positioning plate 9 are arranged in a Y-shaped structure to position the blades from different directions and positions, adapt to blades with complex shapes, improve positioning accuracy and stability, enhance positioning effects, and adapt to various blade shapes.

[0040] The top of the supporting middle plate 3 along one end of the pressure plate head 6 is an inclined conical structure, which avoids interference when the pressure plate head 6 is pressed down, ensures smooth application of pressure, improves operational convenience, facilitates operation, and ensures pressure application.

[0041] The pressure plate head 6 is made of aluminum material, which is not easy to cause damage when in contact with the parts, thereby protecting the surface quality of the parts and the surface of the parts.

[0042] The surface to be processed on the part 14 is a vertical plane, and the molybdenum wire on the cutting machine uses the side of the base 1 under the surface to be processed as the positioning reference plane. The molybdenum wire is set to be horizontal when cutting the surface to be cut.

[0043] Example 2

[0044] First, place a certain type of blade to be processed steadily on the base 1. At this time, use the positioning part 21 composed of the side positioning pins 7 on the supporting side plate 4 and the first positioning plate 8 and the second positioning plate 9 on the supporting middle plate 3 to accurately position the blade from multiple directions and positions to ensure that the position of the blade on the base 1 is accurate, providing a stable foundation for subsequent cutting processing.

[0045] After positioning is completed, the pressure plate screw 5 is adjusted so that the pressure plate head 6 slowly presses down and compresses the blade. This operation further enhances the stability of the blade during processing and minimizes possible displacement.

[0046] Next, the base 1 is used as a reference plane for positioning to determine the starting position and direction of cutting. Since the cutting surfaces of the blade, namely the first cutting surface 17, the second cutting surface 18, the third cutting surface 19 and the fourth cutting surface 20 are all vertically arranged, the molybdenum wire maintains a wire-feeding method parallel to the cutting surface during cutting.

[0047] First, the first cutting surface 17 is cut. After the first cutting surface 17 is cut, the second cutting surface 18, the third cutting surface 19 and the fourth cutting surface 20 are cut in sequence. During the entire cutting process, thanks to the reasonable structural design of the base 1 and the coordinated cooperation between the various components, the blade always maintains a stable position, and the molybdenum wire achieves precise cutting in a horizontal wire-feeding manner.

[0048] After verification in actual application, this cutting step method not only effectively ensures the processing quality of the blade, but also significantly reduces the processing cost and improves production efficiency, fully demonstrating the outstanding practical value and significant economic benefits of this blade wire cutting processing device.

[0049] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A wire cutting processing device, characterized in that: The machine comprises a base mounted on a wire cutting machine, the base being provided with a positioning portion for positioning the blade body at six points, a pressure head being provided above the positioning portion to press and secure the blade body so as to position the mounting plate on both sides of the positioning portion; the surface to be processed is located on the mounting edge of the mounting plate and is on a vertical plane, the molybdenum wire on the cutting machine uses the side surface of the base below the surface to be processed as a positioning reference plane, and the molybdenum wire is moved horizontally when cutting the surface to be cut; The positioning part includes a supporting middle plate, a supporting side plate, a side positioning pin, a first positioning plate, a second positioning plate, and an inclined part. The supporting side plate is provided with a side positioning pin located in the middle position thereof close to the right end face and fixedly connected thereto; a supporting middle plate is provided between the supporting side plate and the pressure plate seat, and the supporting middle plate is provided with a first positioning plate and a second positioning plate which form a Y-shaped structure with a limiting groove. One end of the first positioning plate and the second positioning plate are inclined surfaces arranged in an inner eight, and the supporting surfaces of the two are arranged in parallel and crosswise. The positioning device is installed on the wire cutting machine tool to perform six-point positioning on the blade. The plane formed by the length direction and the feed direction of the wire cutting tool coincides with the surface to be processed of the mounting plate of the high guide blade.

2. A wire cutting device according to claim 1, characterized in that: The base is provided with a pressure plate seat, a tilted portion with an inclined angle is fixed on the pressure plate seat, a pressure plate screw rod is provided on the tilted portion and is vertically connected with and passes through the pressure plate screw rod, and a pressure plate head is provided at the lower end of the pressure plate screw rod.

3. The wire cutting device according to claim 1, characterized in that: The base is a cross-shaped structure, including a thin cross portion and a thick cross portion, the two ends of the thin cross portion are respectively installed with supporting side plates and a pressure plate seat, and the thick cross portion is fixed with a supporting middle plate.

4. The wire cutting device according to claim 3, characterized in that: The pressure plate seat and the supporting side plates are both arranged perpendicularly to the supporting middle plate, the supporting side plates are fitted with the supporting middle plate, and there is a gap between the pressure plate seat and the supporting middle plate.

5. The wire cutting device according to claim 2, characterized in that: The pressing plate screw is arranged perpendicular to the inclined portion.

6. The wire cutting device according to claim 1, characterized in that: The first positioning plate and the second positioning plate are arranged in a Y-shaped structure, and there are two of them.

7. The wire cutting device according to claim 1, characterized in that: The top of the supporting middle plate is an inclined conical structure along one end of the pressure plate head.

8. The wire cutting device according to claim 2, characterized in that: The pressing plate head is made of aluminum material.

Images