High-pressure double-system large parallel operating cylinder output performance debugging tool

Abstract

The application provides a high-pressure double-system large parallel operating cylinder output performance debugging tool, which comprises a bottom plate assembly (1), two rocker arm support assemblies (2), a rocker arm assembly (3), a sensor support assembly (4) and a grating ruler support assembly (5). An operating cylinder tailstock fixing block is arranged on the bottom plate (11), a tailstock pin (13) is arranged in the operating cylinder tailstock fixing block, and the operating cylinder tailstock is connected to the tailstock pin (13). The operating cylinder tailstock fixing block is integrally processed with the bottom plate (11). The high reliability of the tool ensures that all performances can be debugged when a large tonnage force conflict occurs in the operating cylinder. The force bearing structure and the measuring structure are decoupled. The force bearing structure is designed in a rocker arm type considering the integration of the bottom plate and the tailstock fixing block, the rigidity of the tool is improved, the measuring structure considers that the grating ruler-sliding block assembly is hung on the side of the tool, the grating ruler-sliding block assembly moves synchronously with the product on the same axis, the direct test of the position precision is realized, and the debugging of the operating cylinder is completed.

Description

Technical Field

[0001] This invention pertains to actuator debugging technology, specifically a tooling for debugging the output performance of a large parallel actuator with a high-voltage dual system. Background Technology

[0002] To meet the reliability and safety requirements of modern fly-by-wire control systems, flight control system main control surface actuators often employ redundant designs. However, the output of large parallel actuators in high-pressure dual-system systems cannot be guaranteed to be completely synchronized, especially when the actuators are extended or retracted to their limit positions. This causes a phenomenon where the two actuators experience mutual loads, known as "force contention." The higher pressure of newer generation actuators exacerbates this force contention. Therefore, higher requirements are placed on the strength, reliability, and positional accuracy testing of the debugging fixtures during actuator commissioning.

[0003] In response to the force conflict phenomenon of large parallel actuators in high-voltage dual systems, the traditional translational motion debugging fixture can no longer meet the debugging requirements in terms of strength reliability and positional accuracy testing. The fixture and grating ruler are easily damaged, and the safety risks of the product are greater during the debugging process. Therefore, it is necessary to design a new debugging fixture to ensure the performance debugging of large parallel actuators in high-voltage dual systems. Summary of the Invention

[0004] This invention proposes a high-pressure dual-system large parallel actuator output performance debugging fixture. The fixture decouples the load-bearing structure from the measuring structure. The highly reliable load-bearing structure ensures that all performance can still be debugged when the actuator experiences large-tonnage force disputes. The novel measuring structure enables direct testing of the actuator's position accuracy, avoiding the impact of force disputes on the actuator's position accuracy test.

[0005] This invention provides a high-voltage dual-system large parallel actuator output performance debugging fixture, comprising: a base plate assembly 1, two rocker arm support assemblies 2, a rocker arm assembly 3, a sensor support assembly 4, and a grating ruler bracket assembly 5; the base plate assembly 1 includes: a base plate 11 and a tailstock pin 13; the rocker arm assembly 3 includes: a rocker arm 31, an end ring pin 32, and a rocker arm shaft 33; the sensor support assembly 4 includes: a sensor tailstock bracket 41, a sensor hanging rod 43, a sensor support 44, and a sensor ear ring bracket 45;

[0006] A tailstock fixing block for the actuator cylinder is provided on the base plate 11. The tailstock pin 13 passes through the tailstock fixing block for the actuator cylinder and the tailstock is connected to the tailstock pin 13. The tailstock fixing block for the actuator cylinder and the base plate 11 are integrally machined.

[0007] The base plate 11 is also equipped with a sensor support 44 and two rocker arm support assemblies 2;

[0008] The rocker arm 31 has an E-shaped structure. The rocker arm shaft 33 passes through the connecting end of the rocker arm 31, and both ends are rotatably connected to two rocker arm support assemblies 2. The end ring pin 32 passes through the forked end of the rocker arm 31.

[0009] The sensor support 44 has an L-shaped structure, including a single-ear structure and a positioning part located at the bottom of one side of the single-ear structure. The positioning part is fastened to the base plate 11 by two M20 hexagonal bolts.

[0010] The sensor ear ring bracket 45 is mounted on the rocker arm shaft 33 by a set screw and rotates with the rocker arm shaft 33. The sensor ear ring bracket 45 has an oblong hole, and the sensor hanging rod 43 passes through the oblong hole. One end of the rod 43 suspends the grating ruler bracket assembly 5, and the other end is connected to the end ring pin 32 to maintain concentricity. Both ends of the sensor hanging rod 43 are locked to the sensor ear ring bracket 45 by M20 nuts. The sensor tail bracket 41 is fastened to the side of the base plate 11 by three M6 screws.

[0011] The two ends of the grating ruler bracket assembly 5 are respectively connected to the sensor tail bracket 41 and the sensor ear ring bracket 45.

[0012] Optionally, the base plate assembly 1 further includes: a first bushing 12, a second bushing 14, and a third bushing 15;

[0013] The tailstock pin 13 passes through the first bushing 12, the second bushing 14 and the third bushing 15 and is installed in the actuating cylinder tailstock fixing block.

[0014] Optionally, each rocker arm support assembly 2 includes one rocker arm seat 21, one fourth bushing 22 and two locating pins 23;

[0015] The rocker arm base 21 is an inverted T-shaped structure, including a single-ear structure and positioning parts located at the bottom of both sides of the single-ear structure. The positioning parts are fastened to the base plate 11 by 4 M20 hexagon socket bolts and 2 positioning pins 23.

[0016] The fourth bushing 22 is disposed between the ear hole of the single ear structure and the rocker arm shaft 33.

[0017] Optionally, the rocker arm assembly 3 also includes: two fifth bushings 34 and a third bushing 15;

[0018] Two fifth bushings 34 and one third bushing 15 are disposed between the end ring pin 32 and the bifurcation end of the rocker arm 31.

[0019] Optionally, the sensor support assembly 4 may also include: a sixth bushing 42;

[0020] The sensor earring bracket 45 is rotatably connected to the ear canal of the single ear structure via the sixth bushing 42.

[0021] Optionally, the grating ruler bracket assembly 5 includes: a slider bracket 52, a guide rail 53, a guide rail bracket 54, a grating ruler 55, a fixed ruler bracket 56, an adapter 57, a fisheye rod end joint bearing 58, a seventh bushing 59, and two sliders 51.

[0022] Two sliders 51 are fastened to slider bracket 52 by two M6 screws, guide rail 53 is fastened to guide rail bracket 54 by seven M6 screws, grating ruler 55 is fastened to slider bracket 52 by two M8 screws, and fixed ruler bracket 56 is fastened to guide rail bracket 54 by two M8 screws.

[0023] The slider 51 slides on the guide rail 53 to connect the guide rail bracket 54 and the slider bracket 52. At the same time, the end of the slider bracket 52 is fastened to the sensor tail bracket 41 via the adapter 57 and the fisheye rod end joint bearing 58.

[0024] The guide rail bracket 54 is connected to the sensor earring bracket 45 via the seventh bushing 59.

[0025] Optionally, the actuator tailstock fixing block and the base plate 11 are integrally machined from 2Al2 aluminum alloy.

[0026] Optionally, the tailstock pin 13, rocker arm seat 21, rocker arm 31 end ring pin 32, rocker arm shaft 33, and sensor support 44 are made of 30CrMnSiA material.

[0027] Optionally, the sensor tail bracket 41 and the sensor ear ring bracket 45 are made of 2Cr13 material.

[0028] Optionally, the sensor mounting rod 43 is made of 9Cr18 material.

[0029] The advantages of this invention are: for the output of large parallel actuators in high-voltage dual systems, a debugging fixture is proposed. The fixture decouples the load-bearing structure from the measuring structure. The highly reliable load-bearing structure ensures that all performance can still be debugged when the actuator experiences large-tonnage force disputes. The new type of measuring structure enables direct testing of the actuator's positional accuracy, avoiding the impact of force disputes on the actuator's positional accuracy test. Attached Figure Description

[0030] Figure 1 Assembly drawing of the output debugging tooling for a large parallel actuator cylinder of a high-voltage dual system;

[0031] Figure 2 This is a schematic diagram of the base plate assembly.

[0032] Figure 3 Schematic diagram of rocker arm support assembly;

[0033] Figure 4 A schematic diagram of the rocker arm assembly;

[0034] Figure 5 A schematic diagram of the sensor support assembly;

[0035] Figure 6 A schematic diagram of the grating ruler bracket assembly;

[0036] Explanation of reference numerals in the attached figures:

[0037] Base plate assembly 1, rocker arm support assembly 2, rocker arm assembly 3, sensor support assembly 4, grating ruler bracket assembly 5;

[0038] Base plate 11, first bushing 12, tailstock pin 13, second bushing 14, third bushing 15;

[0039] Rocker arm seat 21, fourth bushing 22, locating pin 23;

[0040] Rocker arm 31, end ring pin 32, rocker arm shaft 33, fifth bushing 34;

[0041] Sensor tail bracket 41, sixth bushing 42, sensor hanging rod 43, sensor support 44, sensor ear ring bracket 45;

[0042] 51. Slider 52. Slider bracket 53. Guide rail 54. Guide rail bracket 55. Linear grating ruler 56. Length bracket 57. Adapter 58. Fisheye rod end joint bearing 59. Seventh bushing Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] The features and illustrative embodiments of various aspects of the present invention will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. The invention is by no means limited to any specific setups and methods set forth below, but covers any improvements, substitutions, and modifications to structures, methods, and devices without departing from the spirit of the invention. Well-known structures and techniques are not shown in the drawings and the following description to avoid unnecessarily obscuring the invention.

[0045] It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other, and the various embodiments can be referenced and cited in each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0046] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0047] The technical solution of the present invention: as follows Figure 1-6 As shown, the present invention provides a tooling for output debugging of a large parallel actuator cylinder in a high-voltage dual system, comprising a base plate assembly 1, two rocker arm support assemblies 2, a rocker arm assembly 3, a sensor support assembly 4, and a grating ruler bracket assembly 5, wherein:

[0048] The base plate assembly 1 consists of a base plate 11, a first bushing 12, a second bushing 14, a third bushing 15, and a tailstock pin 13;

[0049] Each rocker arm support assembly 2 includes one rocker arm seat 21, one fourth bushing 22, and two locating pins 23.

[0050] The rocker arm assembly 3 includes: one rocker arm 31, one end ring pin 32, one rocker arm shaft 33, two fifth bushings 34, and one third bushing 15;

[0051] The sensor support assembly 4 includes a sensor earring bracket 41, a self-lubricating graphite copper sleeve 42, a sensor support 44, a sensor tail bracket 45, and a sensor hanging rod 43.

[0052] The linear encoder bracket assembly 5 includes: 2 sliders 51, 1 slider bracket 52, 1 guide rail 53, 1 guide rail bracket 54, 1 linear encoder 55, 1 fixed-length bracket 56, 1 adapter 57, 1 fisheye rod end joint bearing 58, and 1 self-lubricating graphite copper bushing 59.

[0053] The actuator tailstock fixing block in base plate assembly 1 is integrally machined from 2Al2 aluminum alloy and the base plate 11, with a thickness of 60mm. The front end of the base plate is the fastening interface with the rocker arm support assembly 2 and the sensor support assembly 4; the rear end of the base plate assembly is the interface between the base plate and the actuator tailstock. Figure 2 The diagram shows a dual-cylinder parallel interface. The rear tailstock fixing part has a first bushing 12, a second bushing 14, and a third bushing 15, all made of 9Cr18 material. The tailstock pin 13 is made of 30CrMnSiA material. The reasonable design of the materials of each part ensures the strength and reliability of the base plate assembly.

[0054] In the rocker arm support assembly 2, the rocker arm seat 21 is made of 30CrMnSiA material. The rocker arm seat 21 is designed with a fourth bushing 22, which is a T-shaped self-lubricating graphite copper bushing. The rocker arm seat 21 is fastened to the base plate 11 by 4 M20 hexagon socket bolts and 2 Ф20 locating pins 23, which at the same time ensures the positional accuracy.

[0055] In the rocker arm assembly 3, both the rocker arm 31 and the rocker arm shaft 33 are made of 30CrMnSiA material. The upper end of the rocker arm 31 is the actuating cylinder end ring connection interface, and the lower end is the rocker arm shaft 33 connection interface. The rocker arm 31 and the rocker arm shaft 33 are machined together to ensure interference fit. The upper end ring fixing part has two fifth bushings 34 and one third bushing 15. The bushings are made of 9Cr18 material, and the end ring pin 32 is made of 30CrMnSiA material to ensure the high reliability of the rocker arm assembly.

[0056] In the sensor support assembly 4, the sensor support 44 is made of 30CrMnSiA material and is fastened to the base plate 11 by two M20 hexagon socket bolts; the sensor ear ring bracket 45 is made of 2Cr13 material and is installed on the rocker arm shaft of the rocker arm assembly by a set screw. The ear ring bracket has a waist-shaped hole through which a 9Cr18 material sensor hanging rod 43 passes. One end of the sensor hanging rod 43 suspends the grating ruler bracket assembly, and the other end is connected to the end ring pin 32 to maintain concentricity. Both ends of the sensor hanging rod are locked to the sensor ear ring bracket 45 by M20 nuts. The position of the sensor hanging rod can be adjusted slightly up and down in the waist-shaped hole to ensure coaxiality with the end ring pin 32, thereby eliminating systematic errors caused by the machining and assembly of tooling parts; the sensor tail seat bracket 41 is made of 2Cr13 material and is fastened to the side of the base plate by three M6 screws.

[0057] In the grating ruler bracket assembly 5, two sliders and one guide rail are purchased from THK's SSR25VXM and SSR25XVM grades. The two sliders are each secured to the slider bracket (2Al2 aluminum alloy) with two M6 screws. The guide rail is secured to the guide rail bracket (2Al2 aluminum alloy) with seven M6 screws. The grating ruler is secured to the slider bracket with two M8 screws. Two M8 screws are used to secure the fixed-length bracket to the guide rail bracket. The guide rail and sliders cooperate to connect the guide rail bracket and the slider bracket. Simultaneously, the slider bracket end is secured to the sensor tailstock bracket 41 via an adapter and a fisheye rod end joint bearing. The guide rail bracket is connected to the sensor ear ring bracket 45 via a seventh bushing 59.

[0058] The seventh bushing 59 is a self-lubricating graphite copper bushing.

[0059] The method of using this invention is as follows:

[0060] Before installing the actuator, assemble all components as shown in the diagram, ensure that the screws are tight, the rocker arm rotates flexibly, and the grating ruler bracket is suspended from the sensor ear ring support and tail support and then tightened with nuts.

[0061] When installing the actuator, remove the pins from the base plate assembly and the rocker arm assembly. Connect the actuator tailstock end to the base plate assembly interface and insert the pin. Connect the actuator end ring to the rocker arm interface and insert the pin.

[0062] After the actuator is installed, perform normal performance testing.

[0063] In this invention, the sensor support assembly and the grating ruler bracket assembly are designed for precise measurement of the actuator cylinder's position accuracy. The sensor slider bracket and the actuator cylinder tailstock are coaxial, and the sensor guide rail bracket is fixed on the sensor support. The sensor support and the actuator cylinder's clevis end achieve coaxial movement through a rocker arm shaft. Therefore, while ensuring the coaxiality of the sensor guide rail bracket and the actuator cylinder clevis, the grating ruler bracket assembly moves completely synchronously with the actuator cylinder during actuator cylinder adjustment. Thus, its motion characteristics are exactly the same as the actuator cylinder's. Furthermore, the force conflict caused by the incomplete synchronization of the output of the large parallel actuator cylinder in the high-voltage dual system during this process has no impact on the position accuracy measurement.

[0064] The innovative aspects of this invention:

[0065] 1. This invention decouples the load-bearing structure and the measuring structure of the tooling. In terms of the load-bearing structure, the tailstock fixing seat and the base plate are designed and processed as an integrated unit. The rocker arm motion form ensures the strength requirements of the tooling during the commissioning of the large parallel actuator cylinder of the high-pressure dual system under the rated output pressure.

[0066] 2. The measuring structure of this invention enables direct testing of position accuracy, avoiding the impact on the position accuracy testing of large parallel actuators in high-pressure dual systems due to force conflicts.

[0067] 3. In this invention, the position of the sensor hanging rod installed on the sensor tail support is adjustable up and down, ensuring that the center of the sensor hanging rod is coaxial with the center of the actuator ear ring, which can eliminate system errors caused by machining and assembly in the debugging tooling;

[0068] 4. The grating ruler bracket assembly of this invention is designed with an adapter, and its working length can be changed by adjusting the thread, so that the grating ruler bracket assembly can be adapted to different tooling, and the tooling assembly has high compatibility.

[0069] This invention has been successfully designed and put into production for the debugging of two types of actuators in a certain project, fully meeting all performance debugging requirements of the product and ensuring the positional accuracy test of the two types of actuators.

[0070] The above-described embodiments are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention.

Claims

1. A high-voltage dual-system large parallel actuator output performance debugging fixture, characterized in that, include: The base plate assembly (1), two rocker arm support assemblies (2), rocker arm assembly (3), sensor support assembly (4), and grating ruler bracket assembly (5); The base plate assembly (1) includes: a base plate (11) and a tailstock pin (13); the rocker arm assembly (3) includes: a rocker arm (31), an end ring pin (32), and a rocker arm shaft (33); the sensor support assembly (4) includes: a sensor tailstock bracket (41), a sensor hanging rod (43), a sensor support (44), and a sensor earring bracket (45); A actuator tailstock fixing block is provided on the base plate (11), and a tailstock pin (13) is inserted into the actuator tailstock fixing block. The actuator tailstock is connected to the tailstock pin (13). The actuator tailstock fixing block and the base plate (11) are integrally machined. The base plate (11) is also equipped with a sensor support (44) and two rocker arm support assemblies (2); The rocker arm (31) has an E-shaped structure. The rocker arm shaft (33) passes through the connecting end of the rocker arm (31), and the two ends are rotatably connected to the two rocker arm support assemblies (2) and the sensor support (44); the end ring pin (32) passes through the forked end of the rocker arm (31); The sensor support (44) has an L-shaped structure, including a single ear structure and a positioning part located at the bottom of one side of the single ear structure. The positioning part is fastened to the base plate (11) by two M20 hexagonal bolts. The sensor ear ring bracket (45) is mounted on the rocker arm shaft (33) by a set screw and rotates with the rocker arm shaft (33). The sensor ear ring bracket (45) has a waist-shaped hole, and the sensor hanging rod (43) passes through the waist-shaped hole. One end of the rod suspends the grating ruler bracket assembly (5), and the other end is connected to the end ring pin (32) to maintain concentricity. Both ends of the sensor hanging rod (43) are locked to the sensor ear ring bracket (45) by M20 nuts. The sensor tail bracket (41) is fastened to the side of the base plate (11) by three M6 screws. The two ends of the grating ruler bracket assembly (5) are connected to the sensor tail bracket (41) and the sensor ear ring bracket (45) respectively.

2. The high-voltage dual-system large parallel actuator output performance debugging fixture according to claim 1, characterized in that, The base plate assembly (1) also includes: a first bushing (12), a second bushing (14), and a third bushing (15); The tailstock pin (13) passes through the first bushing (12), the second bushing (14) and the third bushing (15) and is installed in the actuating cylinder tailstock fixing block.

3. The high-voltage dual-system large parallel actuator output performance debugging fixture according to claim 1, characterized in that, Each rocker arm support assembly (2) includes one rocker arm seat (21), one fourth bushing (22) and two locating pins (23); The rocker arm base (21) is an inverted T-shaped structure, including a single-ear structure and positioning parts set at the bottom of both sides of the single-ear structure. The positioning parts are fastened to the base plate (11) by 4 M20 hexagon socket bolts and 2 positioning pins (23). The fourth bushing (22) is positioned between the ear hole of the single ear structure and the rocker arm shaft (33).

4. The high-voltage dual-system large parallel actuator output performance debugging fixture according to claim 1, characterized in that, The rocker arm assembly (3) also includes: two fifth bushings (34) and a third bushing (15); Two fifth bushings (34) and one third bushing (15) are disposed between the end ring pin (32) and the bifurcation end of the rocker arm (31).

5. The high-voltage dual-system large parallel actuator output performance debugging fixture according to claim 1, characterized in that, The sensor support assembly (4) also includes: a sixth bushing (42); The sensor earring bracket (45) is rotatably connected to the ear canal of the single ear structure via the sixth bushing (42).

6. The high-voltage dual-system large parallel actuator output performance debugging fixture according to claim 1, characterized in that, The grating ruler bracket assembly (5) includes: a slider bracket (52), a guide rail (53), a guide rail bracket (54), a grating ruler (55), a fixed ruler bracket (56), an adapter (57), a fisheye rod end joint bearing (58), a seventh bushing (59), and two sliders (51); Two sliders (51) are fastened to the slider bracket (52) by two M6 screws respectively. The guide rail (53) is fastened to the guide rail bracket (54) by seven M6 screws. The grating ruler (55) is fastened to the slider bracket (52) by two M8 screws. The fixed ruler bracket (56) is fastened to the guide rail bracket (54) by two M8 screws. The slider (51) slides on the guide rail (53) to connect the guide rail bracket (54) and the slider bracket (52). At the same time, the end of the slider bracket (52) is fastened to the sensor tail bracket (41) through the adapter (57) and the fisheye rod end joint bearing (58). The guide rail bracket (54) is connected to the sensor earring bracket (45) via the seventh bushing (59).

7. The high-voltage dual-system large parallel actuator output performance debugging fixture according to claim 1, characterized in that, The actuator tailstock fixing block and the base plate (11) are made of 2Al2 aluminum alloy.

8. The high-voltage dual-system large parallel actuator output performance debugging fixture according to claim 3, characterized in that, The tailstock pin (13), rocker arm seat (21), rocker arm (31) end ring pin (32), rocker arm shaft (33), and sensor support (44) are made of 30CrMnSiA material.

9. The high-voltage dual-system large parallel actuator output performance debugging fixture according to claim 1, characterized in that, The sensor tail bracket (41) and sensor ear ring bracket (45) are made of 2Cr13 material.

10. The high-voltage dual-system large parallel actuator output performance debugging fixture according to claim 1, characterized in that, The sensor hanging rod (43) is made of 9Cr18 material.

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