Non-contact measurement linkage ring limiting screw adjusting tool and adjusting method

Abstract

The invention provides a non-contact measurement linkage ring limiting screw adjusting tool and method, the adjusting tool comprises a supporting body and at least one distance measuring mechanism, one end face of the supporting body is provided with a positioning piece, the positioning piece is provided with a positioning center, and a linkage ring and the positioning piece are concentrically installed; the distance measuring mechanism is installed on the supporting body, and the measuring end of the distance measuring mechanism faces the limiting screw arranged on the circumferential side of the linkage ring and is used for measuring the distance from the end of the limiting screw to the positioning center. The positioning piece is used for limiting the position of the linkage ring, after the linkage ring is installed, the linkage ring and the positioning piece are concentric at the moment, then on this basis, under measurement of the distance measuring mechanism, the extending distance of the limiting screw can be adjusted in sequence, the distance from the end of the limiting screw to the positioning center is accurately adjusted, and the positioning accuracy is improved. The position of the limiting screw is adjusted in real time, an operator can check and correct the position conveniently, and the position adjusting precision and convenience of the limiting screw are improved.

Description

Technical Field

[0001] The invention relates to the technical field of aero-engine assembly, and in particular to a non-contact measurement interlocking ring limit screw adjustment tool and an adjustment method. Background Art

[0002] In aircraft engine parts, the adjustable blades of the high-pressure compressor stator and the bleed valves of the fan end load-bearing frame all need to be driven by interlocking rings. The interlocking rings can ensure the synchronous movement of the whole circle of blades and valves, the roundness of the interlocking rings during operation, and the concentricity of the casing during operation. Among them, the roundness of the interlocking ring and the concentricity of the interlocking ring and the casing are particularly important. The deformation and eccentricity of the interlocking ring will reduce the adjustment accuracy of the blades and valves and increase the circumferential unevenness. As the size of advanced aircraft engines is getting larger and larger, the size of the interlocking rings is also increasing accordingly. As a full-circle circular structure, the interlocking ring has the hidden danger of insufficient rigidity.

[0003] In order to meet the manufacturing tolerance and other factors, the position of the limit screw is usually made adjustable, which requires the position of the limit screw to be accurately adjusted during the assembly of the aircraft engine. Uneven adjustment of the position will cause the interlocking ring to be eccentric, and misalignment of the adjustment position may cause the working clearance to be too small and cause jamming, or the working clearance to be too large and cause eccentricity and insufficient rigidity.

[0004] Based on this, the inventor of the present application proposes a non-contact measurement interlocking ring limit screw adjustment tool and adjustment method. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defect of poor adjustment accuracy of limit screws in the prior art and to provide a non-contact measurement interlocking ring limit screw adjustment tooling and an adjustment method.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] The present invention provides a non-contact measurement interlocking ring limit screw adjustment tool, which is characterized by comprising:

[0008] The support body has a positioning piece on one end surface, the positioning piece has a positioning center, and the linkage ring is installed concentrically with the positioning piece;

[0009] At least one distance measuring mechanism is installed on the supporting body, and the measuring end of the distance measuring mechanism faces the limit screw arranged on the circumferential side of the linkage ring, and is used to measure the distance from the end of the limit screw to the positioning center.

[0010] According to an embodiment of the present invention, the positioning member is a positioning protrusion, and the linkage ring is clamped on the outer side of the positioning protrusion.

[0011] According to an embodiment of the present invention, the distance measuring mechanism is installed on the positioning member, and the number of the distance measuring mechanisms is not less than the number of the limit screws.

[0012] According to an embodiment of the present invention, each measuring end of the distance measuring mechanism corresponds to a limit screw.

[0013] According to one embodiment of the present invention, a plurality of the distance measuring mechanisms are evenly spaced and arranged along the circumference of the positioning member.

[0014] According to one embodiment of the present invention, the distances from the measuring ends of at least two of the distance measuring mechanisms to the positioning center are consistent.

[0015] According to one embodiment of the present invention, the distance measuring mechanism is mounted on the positioning center and is rotatably connected to the positioning member;

[0016] The distance measuring mechanism is used to rotate to the position of the limit screws respectively to measure the distance from the end of each limit screw to the positioning center.

[0017] According to an embodiment of the present invention, the distance measuring mechanism is a distance sensor.

[0018] According to an embodiment of the present invention, at least one positioning hole is provided on the support body, and a latch is sequentially inserted through a driving ear piece provided on the linkage ring and the positioning hole to connect the linkage ring and the support body.

[0019] The present invention also provides a non-contact measurement method for adjusting the interlocking ring limit screw, which is characterized by comprising:

[0020] The distance from the end of the limit screw to the positioning center is obtained by a distance measuring mechanism;

[0021] When the distance deviates from the preset distance range, the extension distance of the limit screw is adjusted.

[0022] The positive and progressive effects of the present invention are:

[0023] The non-contact measurement linking ring limit screw adjustment tool of the present invention, the positioning piece is used to limit the position of the linking ring, after the linking ring is installed, the linking ring and the positioning piece are concentric, and then based on this, under the measurement of the distance measuring mechanism, the extension distance of the limit screw can be adjusted in turn to accurately adjust the distance from the end of the limit screw to the positioning center, thereby realizing real-time adjustment of the position of the limit screw, facilitating the operator to check and correct, and improving the accuracy and convenience of the limit screw position adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0025] Figure 1 It is a schematic diagram of the installation of the interlocking ring limit screw adjustment tool and the interlocking ring for non-contact measurement of the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 3 It is a schematic diagram of the structure of the limit screw of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the interlocking ring of the present invention;

[0029] Figure 5 for Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0030] Figure 6 The present invention is a flow chart of the method for adjusting the interlocking ring limit screw for non-contact measurement.

[0031] 10. Support body; 110. Positioning member; 111. Positioning center; 120. Positioning hole;

[0032] 20, interlocking ring; 210, limiting screw; 220, driving ear piece;

[0033] 30. Distance measuring mechanism. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to preferred embodiments of the present invention, examples of which are shown in the accompanying drawings. Wherever possible, the same reference numerals will be used in all drawings to represent the same or similar parts. In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some of the terms mentioned in the specification of the present invention may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description herein. In addition, it is required to understand the present invention not only by the actual terms used, but also by the meaning implied by each term.

[0036] Please refer to Figures 1 to 5The present invention provides a non-contact measurement interlocking ring limit screw adjustment tool, which includes a support body 10 and at least one distance measuring mechanism 30. A positioning member 110 is provided on one end surface of the support body 10. The positioning member 110 has a positioning center 111. The interlocking ring 20 is installed concentrically with the positioning member 110. The distance measuring mechanism 30 is installed on the support body 10. The measuring end of the distance measuring mechanism 30 faces the limit screw 210 provided on the circumference of the interlocking ring 20, and is used to measure the distance from the end of the limit screw 210 to the positioning center 111.

[0037] In one embodiment, the cross-sectional shape of the support body 10 along its axial direction may be circular, square, polygonal, etc., which is not limited here. The following description takes a circle as an example.

[0038] The positioning member 110 is disposed on one end surface of the support body 10, and the other end surface of the support body 10 is used to support the interlocking ring 20, which can be a test bench or a stand. The surface of the test bench or stand for the support body 10 needs to be in a horizontal state, so as not to affect the installation and measurement accuracy of the subsequent distance measurement mechanism 30.

[0039] It should be noted that a stopper is formed between the periphery of the positioning member 110 and the supporting body 10, and the stopper is used to clamp the interlocking ring 20. The limit screw 210 is movably installed with the interlocking ring 20, and one end of the limit screw 210 extends to the inside of the interlocking ring 20 and extends toward the inside of the interlocking ring 20. The distance measuring mechanism 30 is installed on the supporting body 10, and is used to measure the distance from the end of the limit screw 210 installed on the periphery of the interlocking ring 20 to the positioning center 111.

[0040] During actual installation, the receiver is located inside the interlocking ring 20, and one end of the limit screw 210 is used to abut against the outer end surface of the receiver. Generally, the extension distance of the limit screw 210 toward the receiver is manually adjusted, but the adjustment method is not accurate enough. The wrong adjustment position may cause a small working gap to cause jamming, or a large working gap to cause eccentricity and insufficient rigidity. Therefore, in this application, the distance measuring mechanism 30 is set to measure the extension distance of the limit screw 210 to the receiver side, so as to accurately adjust the extension distance of each limit screw 210, so as to make the interlocking ring 20 and the receiver concentric after installation.

[0041] Reference Figure 1 and Figure 3 For the linkage ring 20, a plurality of mounting holes are evenly opened on the circumference of the linkage ring 20, and the limit screw 210 is passed through the mounting hole and one end extends toward the inner side of the linkage ring. The extension distance of the limit screw 210 toward the center of the linkage ring 20 can be measured by the distance sensor, and then the staff can accurately adjust the extension distance of the limit screw 210.

[0042] In one embodiment, the mounting hole is a threaded hole, and the middle portion of the limit screw 210 has an external thread. The staff adjusts the extension distance of the limit screw 210 by rotating the limit screw 210. When the requirements are met, the installation position of the limit screw 210 can be locked by a locking nut and a gasket.

[0043] In one embodiment, the positioning member 110 is a positioning protrusion, and the linkage ring 20 is clamped on the outer side of the positioning protrusion.

[0044] Specifically, the positioning protrusion is cylindrical, and the positioning protrusion and the support body 10 can be integrally provided, or connected by bonding, welding, etc., or detachably connected by a threaded connector, which is not limited here.

[0045] An installation stop is formed between the positioning protrusion and the support body 10, and the outer diameter of the positioning protrusion is consistent with the inner diameter of the interlocking ring 20, so that it is convenient to define the position of the interlocking ring 20. That is, when the interlocking ring 20 is installed on the positioning protrusion, the center of the interlocking ring 20 is concentric with the positioning center 111 of the positioning protrusion.

[0046] In some other embodiments, the positioning member 110 may also be a positioning groove. The positioning groove is provided in the middle of the supporting body 10, and one end of the linkage ring 20 is clamped in the positioning groove.

[0047] Specifically, the cross-sectional shape of the positioning groove along its axial direction is circular. When the linkage ring 20 is installed, the positioning center 111 of the positioning groove is concentric with the center of the linkage ring 20 .

[0048] As for the distance measuring mechanism 30 , the distance measuring mechanism 30 is installed on the positioning member 110 , and the number of the distance measuring mechanism 30 is not less than the number of the limit screws 210 .

[0049] Please continue to refer to Figure 3 The limit screw 210 includes an abutment end 211 and a mounting end 212. The abutment end 211 faces the inner side of the linkage ring 20 and is used to face and abut the receiver. The limit screw 210 is fixedly connected to the linkage ring 20 at the mounting end 212 through a locking nut. The abutment end 211 is truncated cone-shaped, and the material can be selected from wear-resistant elastic material. A polygonal inner hole is opened at the end of the mounting end 212, which is convenient for the staff to use tools to adjust the extension distance of the limit screw 210.

[0050] In order to improve the efficiency of distance measurement for multiple limit screws 210 and to meet the requirements of synchronous measurement, the number of distance measuring mechanisms 30 is not less than the number of limit screws 210, so that the extension distances of the abutment ends 211 of all limit screws 210 can be synchronously measured at one time to improve the efficiency of distance measurement. Then the staff can make real-time adjustments to the limit screws 210 that do not meet the distance requirements one by one, thereby improving the adjustment accuracy and convenience of the limit screws 210.

[0051] In one embodiment, each measuring end of the distance measuring mechanism 30 corresponds to a limiting screw 210 .

[0052] In the actual measurement process, the number of the limit screws 210 on the linkage ring 20 is fixed, for example, generally 8, 10, etc., so the corresponding number of distance measuring mechanisms 30 can be set according to the number of the limit screws 210.

[0053] In one embodiment, a plurality of distance measuring mechanisms 30 are evenly spaced and arranged along the circumference of the positioning member 110 .

[0054] When the distance measuring mechanism 30 is installed, the axial directions of the distance measuring mechanism 30, the positioning center 111 and the limit screw 210 are collinear. Moreover, the distance from the measuring end of the distance measuring mechanism 30 to the positioning center 111 is consistent, so that the measured distance of the distance measuring mechanism 30 in the initialization state is the shortest distance from the measuring end of the distance measuring mechanism 30 to the inner end surface of the interlocking ring 20, and they correspond one to one.

[0055] After the limit screw 210 is installed on the interlocking ring 20 , the distance measuring mechanism 30 measures the extension distance of the limit screw 210 . When the extension distance deviates from the preset distance range, the staff adjusts the extension distance of the limit screw 210 .

[0056] This adjustment method improves the installation efficiency and installation accuracy of the limit screw 210. The staff can adjust the extension distance of the limit screw 210 in real time according to the real-time measurement results of the distance measuring mechanism 30, and use the locking nut to lock the limit screw 210 when the extension distance meets the requirements.

[0057] Specifically, the number of the distance measuring mechanisms 30 is at least two, and the distances from the measuring ends of at least two distance measuring mechanisms 30 to the positioning center 111 are consistent.

[0058] When installing the distance measuring mechanism 30, a line can be drawn from the positioning center 111 to the center of the mounting hole of the limit screw 210, and then the distance measuring mechanism 30 can be installed on the line, and the photoelectric signal transmission path of the measuring end is consistent with the route, thereby meeting the installation accuracy requirements.

[0059] In some other embodiments, the distance measuring mechanism 30 is installed on the positioning center 111 and is rotatably connected to the positioning member 110; the distance measuring mechanism 30 is used to rotate to the position of the limit screws 210 respectively to measure the distance from the end of each limit screw 210 to the positioning center 111.

[0060] Lines can be drawn on the positioning member 110 in sequence from the positioning center 111 to the limit screw 210 to provide a rotation reference for the distance measuring mechanism 30. By setting the adjustment distance, the distance measuring mechanism 30 is rotated to the direction of each limit screw 210, and then the staff adjusts the extension distance of the limit screw 210.

[0061] As for the distance measuring mechanism 30 , the distance measuring mechanism 30 is a distance sensor, and the distance sensor can be one of an optical distance sensor, an infrared distance sensor, and an ultrasonic distance sensor, which is not limited here.

[0062] Please refer to Figure 1 , Figure 4 and Figure 5 In one embodiment, at least one positioning hole 120 is opened on the support body 10, and the latch is sequentially passed through the driving ear piece 220 and the positioning hole 120 provided on the linkage ring 20 to connect the linkage ring 20 and the support body 10.

[0063] Two driving lugs 220 are arranged at intervals on the outer circumference of the interlocking ring 20, and the driving lugs 220 are provided with lug holes, and the pins are sequentially inserted through the lug holes and the positioning holes 120 to limit the interlocking ring 20. Therefore, under the cooperation of the positioning member 110 and the positioning hole 120, the interlocking ring 20 itself can be prevented from deviating, thereby improving the measurement accuracy of the distance measuring mechanism 30.

[0064] To sum up, in the non-contact measurement of the connecting ring limit screw adjustment tooling of the present invention, the positioning piece 110 is used to limit the position of the connecting ring 20. After the connecting ring 20 is installed, the connecting ring 20 is now concentric with the positioning piece 110. Then, based on this, under the measurement of the distance measuring mechanism 30, the extension distance of the limit screw 210 can be adjusted in turn to accurately adjust the distance from the end of the limit screw 210 to the positioning center 111, thereby realizing real-time adjustment of the position of the limit screw 210, facilitating the operator to check and correct, and improving the accuracy and convenience of the position adjustment of the limit screw 210.

[0065] Please refer to Figure 6 The present invention also proposes a non-contact measurement method for adjusting the interlocking ring limit screw, which is implemented by using the above-mentioned non-contact measurement interlocking ring limit screw adjustment tooling. The adjustment method includes:

[0066] S110. Obtain the distance from the end of the limit screw to the positioning center through a distance measuring mechanism.

[0067] S120. When the distance deviates from the preset distance range, the extension distance of the limit screw is adjusted.

[0068] The distance sensor is used to measure the distance from the end of the limit screw to the positioning center, and this can be used as a reference to adjust the extension distance of the limit screw. This avoids the problems of eccentricity of the linkage ring caused by manual random adjustment, adjustment position errors causing the working gap to be too small to cause jamming, or excessive eccentricity and insufficient rigidity due to the working gap being too large, thereby improving the convenience and accuracy of the limit screw adjustment.

[0069] The present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or multiple times in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0070] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A non-contact measurement interlocking ring limit screw adjustment tool, characterized in that: include: The support body has a positioning piece on one end surface, the positioning piece has a positioning center, and the linkage ring is installed concentrically with the positioning piece; At least one distance measuring mechanism is installed on the supporting body, and the measuring end of the distance measuring mechanism faces the limit screw arranged on the circumferential side of the linkage ring, and is used to measure the distance from the end of the limit screw to the positioning center.

2. The non-contact measurement interlocking ring limit screw adjustment tool according to claim 1 is characterized in that: The positioning member is a positioning protrusion, and the linkage ring is clamped on the outer side of the positioning protrusion.

3. The non-contact measurement interlocking ring limit screw adjustment tool according to claim 1 is characterized in that: The distance measuring mechanism is installed on the positioning member, and the number of the distance measuring mechanisms is not less than the number of the limit screws.

4. The non-contact measurement interlocking ring limit screw adjustment tool according to claim 3 is characterized in that: Each measuring end of the distance measuring mechanism corresponds to a limiting screw.

5. The non-contact measurement interlocking ring limit screw adjustment tool according to claim 3, characterized in that: The plurality of distance measuring mechanisms are evenly spaced and arranged along the circumference of the positioning member.

6. The non-contact measurement interlocking ring limit screw adjustment tool according to claim 1, characterized in that: The distances from the measuring ends of at least two of the distance measuring mechanisms to the positioning center are consistent.

7. The non-contact measurement interlocking ring limit screw adjustment tool according to claim 1, characterized in that: The distance measuring mechanism is installed at the positioning center and is rotatably connected to the positioning member; The distance measuring mechanism is used to rotate to the position of the limit screws respectively to measure the distance from the end of each limit screw to the positioning center.

8. The non-contact measurement interlocking ring limit screw adjustment tool according to any one of claims 1 to 7, characterized in that: The distance measuring mechanism is a distance sensor.

9. The non-contact measurement interlocking ring limit screw adjustment tool according to claim 1, characterized in that: At least one positioning hole is provided on the supporting body, and the latch is sequentially passed through the driving ear piece provided on the linkage ring and the positioning hole to connect the linkage ring and the supporting body.

10. A method for adjusting a link ring limit screw by non-contact measurement, using the link ring limit screw adjustment tool for non-contact measurement according to any one of claims 1 to 9, characterized in that: include: The distance from the end of the limit screw to the positioning center is obtained by a distance measuring mechanism; When the distance deviates from the preset distance range, the extension distance of the limit screw is adjusted.

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