Auxiliary tool for horizontal verification of vector sensor corrector

Abstract

The utility model discloses an auxiliary tool for horizontal verification of a vector sensor corrector, and belongs to the technical field of helicopter part verification equipment calibration. A small end support block; the two transverse horizontal adjusting bolts are arranged on the two sides of the large-end supporting block respectively; the longitudinal horizontal adjusting bolt is connected to the lower part of the small-end supporting block; the two transverse horizontal adjusting support legs are respectively connected with the two transverse horizontal adjusting bolts; the longitudinal horizontal adjusting support leg is connected with the longitudinal horizontal adjusting bolt; the two ends of the connecting rod are connected with the large-end supporting block and the small-end supporting block respectively, so that the inclination angle of the large-end supporting block is matched with the inclination angle of the small-end supporting block; by controlling and adjusting the transverse horizontal adjusting support leg and the longitudinal horizontal adjusting support leg, the reference plane of the vector sensor corrector is quickly aligned, the gradienter is accurately leveled, and high-precision calibration of the horizontal parameters of the vector sensor corrector is realized.

Description

Technical Field

[0001] This utility model relates to the field of calibration technology for helicopter component calibration equipment, and more specifically, to an auxiliary tooling for horizontal calibration of a vector sensor calibrator. Background Technology

[0002] In helicopter overhaul work, the levelness of the vector sensor mounting bracket for helicopter components is adjusted and accepted using a vector sensor calibrator to meet process requirements. To ensure the accuracy of the levelness of the vector sensor mounting bracket, the accuracy of the metrological performance of the vector sensor calibrator must first be guaranteed. Since the reference plane of the vector sensor calibrator is located on a cylindrical surface and parallel to the axis of the cylinder, if the cylindrical surface causes the reference plane to rotate circumferentially, the levelness of the reference plane cannot be determined.

[0003] In related technologies, a jack and mandrel are typically used for auxiliary support, combined with a dial indicator method to complete the calibration of the vector sensor calibrator. However, the above method can only adjust the vector sensor calibrator in the longitudinal direction, making it difficult to accurately align its reference plane. Furthermore, the cylindrical surface and inner hole of the vector sensor calibrator are linearly supported by the jack and mandrel, respectively, and have no limit in the horizontal and vertical directions. Therefore, the vector sensor calibrator is prone to shaking during the calibration process, resulting in distorted measurement data and low reliability of the calibration results. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem that existing equipment is difficult to accurately level the reference plane when calibrating a vector sensor calibrator, and to propose an auxiliary tooling for horizontal calibration of a vector sensor calibrator.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A level calibration auxiliary fixture for a vector sensor calibrator includes:

[0007] A large-end support block, wherein flange plates are respectively provided on both sides of the large-end support block;

[0008] Small end support block, which cooperates with large end support block to jointly support the test piece;

[0009] A pressure plate is detachably connected to the upper end of the small end support block. The pressure plate and the small end support block cooperate to press against the test piece, thereby restricting the vertical movement and circumferential rotation of the test piece.

[0010] Two horizontal adjusting bolts are respectively connected to the lower part of the two flange plates;

[0011] A longitudinal horizontal adjusting bolt is connected to the lower part of the small end support block;

[0012] Two horizontally adjustable feet are provided, each of which is threadedly connected to two horizontally adjustable bolts, for adjusting the height and tilt angle of the large end support block.

[0013] The longitudinal horizontal adjustment foot is threadedly connected to the longitudinal horizontal adjustment bolt and is used to adjust the height of the small end support block;

[0014] A connecting rod, the two ends of which are respectively connected to the large end support block and the small end support block, the connecting rod is used to transmit the position change of either end to the other end so that the tilt angle of the large end support block and the small end support block are matched.

[0015] Furthermore, the large-end support block is provided with an upward-facing large-end V-shaped groove, which is used to laterally limit the portion of the test piece located above the large-end support block; the small-end support block is provided with an upward-facing small-end V-shaped groove, which is used to laterally limit the portion of the test piece located above the small-end support block.

[0016] Furthermore, a first connecting hole is formed on the surface of the flange plate, and a screw hole is provided on the upper end face of the lateral horizontal adjustment leg; the lateral horizontal adjustment bolt includes:

[0017] A smooth circular segment, located at one end of the transverse horizontal adjusting bolt, passes through the first connecting hole;

[0018] A threaded section is located at the other end of the transverse horizontal adjusting bolt, and the threaded section is threaded into the threaded hole;

[0019] A limiting ring is located between the smooth circular segment and the threaded segment, and the transverse horizontal adjusting bolt abuts against the lower surface of the flange plate through the limiting ring.

[0020] Furthermore, the radial longitudinal section of the connecting rod is elliptical or rectangular to prevent relative rotation between the connecting rod and the large-end support block and the small-end support block.

[0021] Furthermore, the bottom ends of both the horizontal and vertical adjustable feet are designed as arc-shaped surfaces.

[0022] Furthermore, the large end support block is provided with several weight-reducing holes.

[0023] The beneficial effects of this utility model are as follows: This application provides an auxiliary tooling for the horizontal calibration of a vector sensor calibrator. By controlling and adjusting the lateral and longitudinal horizontal adjustment feet, the reference plane of the vector sensor calibrator can be quickly aligned and the level can be accurately adjusted. This enables high-precision calibration of the horizontal parameters of the vector sensor calibrator, thereby improving the assembly quality of the subsequent vector sensor mounting bracket and ensuring flight safety. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a vector sensor calibrator horizontal calibration auxiliary tooling provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram showing the positional relationship between a horizontal calibration auxiliary tooling for a vector sensor calibrator and the vector sensor calibrator provided in an embodiment of this utility model.

[0026] Figure 3 This is a schematic diagram of the horizontal adjustment bolt structure in an embodiment of this utility model.

[0027] The markings in the diagram are as follows:

[0028] 1. Large end support block;

[0029] 11. Flange plate; 12. Large end V-groove; 13. Weight reduction hole;

[0030] 2. Small end support block;

[0031] 21. Small end V-groove; 22. Pressure plate;

[0032] 3. Horizontal leveling bolts;

[0033] 31. Smooth circular section; 32. Threaded section; 33. Limiting ring;

[0034] 4. Longitudinal leveling bolts; 5. Lateral leveling feet; 6. Longitudinal leveling feet; 7. Connecting rods;

[0035] 8. Vector sensor calibrator; 81. Large cylinder; 82. Small cylinder; 83. Reference plane; 84. Longitudinal level; 85. Lateral level; 86. Fine adjustment screw. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0040] It should be noted that if the vector sensor calibrator 8 is mistakenly accepted (i.e., a defective tooling is accepted), using a defective vector sensor calibrator 8 during subsequent debugging and acceptance of the vector sensor mounting bracket will lead to the misacceptance and invalidation of the vector sensor mounting bracket, increasing the quality risk. The vector sensor calibrator 8 has a multi-level columnar structure with gradually changing diameters. The main structure of the vector sensor calibrator 8 used in this embodiment includes: a large cylinder 81 at one end, a small cylinder 82 at the other end, a reference plane 83 on the cylindrical surface of the large cylinder 81, a longitudinal level 84 and a transverse level 85 on the reference plane 83, and fine-tuning screws 86 at both ends of the longitudinal level 84 and the transverse level 85. The large cylinder 81 has a transverse inner hole penetrating the cylindrical surface, and the axis of the transverse inner hole is parallel to the reference plane 83. Vector sensor The calibrator 8 is also provided with a longitudinal inner hole that passes through the end face of the large cylinder 81 and the end face of the small cylinder 82. The axis of the longitudinal inner hole is parallel to the reference plane 83 and perpendicular to the axis of the transverse inner hole. The principle of the vector sensor calibrator 8 is to use the transverse level 85 and the longitudinal level 84 to present the actual horizontal state of the reference plane 83, thereby indirectly presenting the true horizontal state of the axis of the transverse inner hole and the axis of the longitudinal inner hole. When using the vector sensor calibrator 8 to detect and adjust the levelness of the vector sensor mounting bracket, it is only necessary to observe whether the bubbles of the transverse level 85 and the longitudinal level 84 are centered to determine whether the levelness of the vector sensor mounting bracket meets the process requirements. The design of the vector sensor calibrator 8 quantifies the levelness of the reference plane 83 onto the visible transverse level 85 and the longitudinal level 84, providing an accurate and reliable reference for the installation, adjustment and detection of the vector sensor mounting bracket.

[0041] Please see Figures 1 to 3 The illustrated embodiment of this application provides a horizontal calibration auxiliary fixture for a vector sensor calibrator. In practical applications, this fixture is used to calibrate and align the reference plane 83 of the vector sensor calibrator 8, ensuring that when the reference plane 83 is in a leveled state, the bubbles of the horizontal level 85 and the vertical level 84 are centered, thereby achieving accurate calibration of the horizontality of the vector sensor calibrator 8. In this embodiment, the horizontal calibration auxiliary fixture is placed on an inspection platform, which is at least Level 1. For ease of description, the "vector sensor calibrator 8" is referred to as the "tested component," and the "horizontal calibration auxiliary fixture" is referred to as the "horizontal calibration auxiliary fixture."

[0042] The horizontal calibration auxiliary fixture includes: a large end support block 1, a small end support block 2, a transverse horizontal adjusting bolt 3, a longitudinal horizontal adjusting bolt 4, a transverse horizontal adjusting leg 5, a longitudinal horizontal adjusting leg 6, and a connecting rod 7; wherein, the large end support block 1 adopts a rectangular block structure, and flange plates 11 are respectively provided on its two side walls. The flange plates 11 are close to the bottom surface of the large end support block 1. The plate surface of the flange plates 11 is horizontally set, and the plate surface is provided with a first connecting hole for connecting the transverse horizontal adjusting bolt 3. The purpose of the flange plates 11 is to provide installation positions for the transverse horizontal adjusting bolt 3 on both sides of the large end support block 1.

[0043] The small end support block 2 adopts a rectangular block structure. The small end support block 2 and the large end support block 1 are arranged in parallel and cooperate to support the test piece on the top. The lower surface of the small end support block 2 is provided with a second connecting hole for connecting the longitudinal horizontal adjustment bolt 4 at the center.

[0044] To better limit and fix the workpiece under test (DUT) and prevent it from rolling and slipping off the large-end support block 1 and the small-end support block 2, the above technical solution includes a large-end V-groove 12 on the large-end support block 1, with its opening facing upwards, to support the large cylindrical structure 81 on the DUT; and a small-end V-groove 21 on the small-end support block 2, with its opening facing upwards, to support the small cylindrical structure 82 on the DUT. When the DUT is placed on the large-end support block 1 and the small-end support block 2, the inclined surface of the large-end V-groove 12 contacts the two cylindrical surfaces of the large cylindrical structure 81 and provides inclined support, and the inclined surface of the small-end V-groove 21 contacts the two cylindrical surfaces of the small cylindrical structure 82 and provides inclined support. This results in four straight lines as the contact elements between the DUT and the horizontal calibration auxiliary fixture, thus providing lateral limiting for the DUT.

[0045] Please see Figure 3 In this embodiment, the transverse horizontal adjusting bolt 3 and the longitudinal horizontal adjusting bolt 4 adopt the same structure, both being semi-threaded bolts. One end of the transverse horizontal adjusting bolt 3 is a smooth circular segment 31, and the other end is a threaded segment 32. A limiting ring 33 is provided between the smooth circular segment 31 and the threaded segment 32 for separation. In actual application, the smooth circular segments 31 of the two transverse horizontal adjusting bolts 3 are respectively inserted into the first connecting holes on the two flange plates 11, and the limiting ring 33 is limited and abuts against the lower surface of the flange plate 11, so that the threaded segment 32 is located below the flange plate 11. It can be understood that the longitudinal horizontal adjusting bolt 4 is connected to the second connecting hole on the lower surface of the small end support block 2 in the same way.

[0046] The lateral horizontal adjustment foot 5 and the longitudinal horizontal adjustment foot 6 adopt the same structure, both being columnar. The upper end face of the lateral horizontal adjustment foot 5 is provided with screw holes that are compatible with the lateral horizontal adjustment bolts 3. The two lateral horizontal adjustment feet 5 are respectively threadedly connected to the threaded sections 32 of the two lateral horizontal adjustment bolts 3 through the screw holes. In practical applications, the depth of the lateral horizontal adjustment bolts 3 in the screw holes can be changed by screwing the lateral horizontal adjustment feet 5, thereby changing the ground clearance of the corresponding side flange plate 11. Furthermore, by controlling the two lateral horizontal adjustment feet 5, the overall height of the large end support block 1 and the overall tilt angle of the large end support block 1 can be adjusted.

[0047] The upper end face of the longitudinal horizontal adjustment foot 6 is provided with a screw hole that is compatible with the longitudinal horizontal adjustment bolt 4. The longitudinal horizontal adjustment foot 6 is threadedly connected to the threaded section 32 of the longitudinal horizontal adjustment bolt 4 through the screw hole. Similarly, in practical applications, the overall height of the small end support block 2 can be adjusted by screwing the longitudinal horizontal adjustment foot 6.

[0048] To ensure the horizontal calibration auxiliary fixture can be stably placed on the inspection platform and to allow for the coordinated movement between the large-end support block 1 and the small-end support block 2, a third connecting hole is provided on the large-end support block 1, and a fourth connecting hole is provided on the small-end support block 2. The two ends of the connecting rod 7 are respectively connected to the third and fourth connecting holes, thus connecting the large-end support block 1 and the small-end support block 2 to form a whole. Through the design of the connecting rod 7, the horizontal calibration auxiliary fixture forms a stable triangular support with two lateral horizontal adjustment legs 5 and one longitudinal horizontal adjustment leg 6, which can smoothly support the test piece for calibration. In this embodiment, the connecting rod 7 is a long rod with an elliptical radial cross-section to prevent circumferential sliding within the third and fourth connecting holes and relative rotation between the connecting rod 7 and the large-end support block 1 and the small-end support block 2. It is understood that the connecting rod 7 could also be made of other materials, such as a rectangular strip, that would not interact with the large-end support block. 1. A long rod structure that generates relative rotation between the small end support blocks 2; In the above technical solution, the connecting rod 7 is used to transmit the position change of either end to the other end so that the tilt angle of the large end support block 1 and the small end support block 2 is matched. That is, when the height or tilt angle of the large end support block 1 or the small end support block 2 changes, the overall posture of the horizontal verification auxiliary tooling will also change synchronously. In practical applications, by turning any horizontal adjustment foot 5, the height of both sides of the large end support block 1 can be changed, thereby adjusting the overall horizontal level of the horizontal verification auxiliary tooling. By turning the longitudinal adjustment foot 6 separately, the height between the large end support block 1 and the small end support block 2 can be changed, thereby adjusting the overall longitudinal level of the horizontal verification auxiliary tooling. This drives the test piece carried above to quickly align, solving the technical problem that the existing verification method is difficult to complete the horizontal horizontal verification of the test piece.

[0049] To better limit and fix the test piece in the vertical direction, and to lock the test piece within the large-end V-groove 12 and the small-end V-groove 21 to prevent it from rotating freely, in the above technical solution, a pressure plate 22 is provided at the upper end of the small-end support block 2. The pressure plate 22 has a number of matching screw holes at corresponding positions on the plate surface and the small-end support block 2. The pressure plate 22 is detachably connected to the small-end support block 2 by bolts and is located directly above the small-end V-groove 21. In practical applications, after the small cylinder 82 is placed in the small-end V-groove 21, the pressure plate 22 is installed. The lower surface of the pressure plate 22 and the two inclined surfaces on both sides of the small-end V-groove 21 jointly press against the small cylinder 82, thereby achieving horizontal and vertical limitation and fixation of the test piece, solving the technical problem that the test piece is prone to shaking during the calibration process.

[0050] In a preferred embodiment of this application, the bottom ends of both the horizontal leveling support 5 and the vertical leveling support 6 are designed with arc-shaped surfaces. The purpose of using arc-shaped surfaces is to reduce the contact area between the horizontal leveling support 5 and the vertical leveling support 6 and the inspection platform, so that the horizontal calibration auxiliary tooling and the inspection platform always maintain a stable three-point contact. This can effectively prevent the other supports from tilting due to angle changes after adjusting one support, and avoid uneven force on the bottom causing wobbling. Furthermore, the arc-shaped surface design will not change the contact form between the support and the inspection platform during the leveling adjustment process, ensuring the stability and flexibility of the adjustment state.

[0051] In a preferred embodiment of this application, the large end support block 1 is provided with a plurality of weight reduction holes 13; the weight reduction holes 13 are used to reduce the weight of the large end support block 1, so as to facilitate the disassembly and transfer of the horizontal calibration fixture.

[0052] When calibrating the test piece, first place the large cylinder 81 of the test piece in the large end V-groove 12 and the small cylinder 82 in the small end V-groove 21; rotate and adjust the test piece so that the reference plane 83 on the large cylinder 81 is in a roughly horizontal state; after pressing and fixing the small cylinder 82 of the test piece to the small end V-groove 21 by the pressure plate 22, use the measuring equipment to measure the current height value that the test piece needs to be adjusted, and control the horizontal level adjustment foot 5 to adjust the horizontal levelness of the reference plane 83, and control the vertical level adjustment foot 6 to adjust the vertical levelness of the reference plane 83 to complete the alignment of the reference plane 83; finally, by controlling the fine adjustment screw 86, adjust the bubbles of the vertical level 84 and the horizontal level 85 to the center position; the calibration of the test piece is completed.

[0053] To address the issue of difficulty in accurately leveling the reference plane 83 on the vector sensor calibrator 8, which affects the accuracy of its leveling verification and leads to incorrect acceptance or rejection of products, this application provides an auxiliary tooling for leveling verification of the vector sensor calibrator. By controlling and adjusting the lateral leveling support 5 and the longitudinal leveling support 6, the reference plane 83 of the vector sensor calibrator 8 can be quickly aligned, and the level can be accurately leveled. This enables high-precision verification of the level parameters of the vector sensor calibrator 8, thereby improving the assembly quality of the subsequent vector sensor mounting bracket and ensuring flight safety. It is understood that the auxiliary tooling for leveling verification of the vector sensor calibrator provided in this application can also be applied to the leveling installation, debugging, and testing of similar tooling or products. It is used to solve the technical problem that coaxial cylindrical tooling or products with different diameters and plane and level structures cannot determine the level of the reference plane due to the free rotation of the cylindrical surface, thus preventing accurate verification of the level parameters of the level.

[0054] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vector sensor calibrator horizontal check aid tool, characterized by, The utility model relates to a kind of support block for testing, including: Big end support block, the two sides of big end support block are respectively provided with flange plate; Small end support block, small end support block is matched with big end support block and is jointly borne by measured piece; Pressing plate, the upper end of small end support block is detachably connected, the pressing plate is matched with small end support block and is tightly pressed measured piece, for limiting the vertical movement and circumferential rotation of measured piece; Two transverse horizontal adjusting bolts, two transverse horizontal adjusting bolts are respectively connected below two flange plates; Longitudinal horizontal adjusting bolt, longitudinal horizontal adjusting bolt is connected below small end support block; Two transverse horizontal adjusting feet, two transverse horizontal adjusting feet are respectively threadedly connected with two transverse horizontal adjusting bolts, for adjusting the height and inclination angle of big end support block; Longitudinal horizontal adjusting foot, longitudinal horizontal adjusting foot is threadedly connected with longitudinal horizontal adjusting bolt, for adjusting the height of small end support block; Connecting rod, the two ends of connecting rod are respectively connected with big end support block and small end support block, and connecting rod is used to transmit the position change of any one end to the other end, so that the inclination angle of big end support block and small end support block is kept matching.

2. A horizontal calibration aid for a vector sensor calibrator according to claim 1, characterized in that, Big end V-shaped groove is provided on big end support block, and the opening of big end V-shaped groove faces upwards, and big end V-shaped groove is used for transversely limiting the part of measured piece above big end support block;Small end V-shaped groove is provided on small end support block, and the opening of small end V-shaped groove faces upwards, and small end V-shaped groove is used for transversely limiting the part of measured piece above small end support block.

3. A horizontal calibration aid for a vector sensor calibrator according to claim 1, characterized in that, First connecting hole is formed on the surface of flange plate, and the upper end surface of transverse horizontal adjusting foot is provided with screw hole;The transverse horizontal adjusting bolt includes: Smooth round section, smooth round section is located at one end of transverse horizontal adjusting bolt, and smooth round section is arranged in first connecting hole; Threaded section, threaded section is located at the other end of transverse horizontal adjusting bolt, and threaded section is threadedly connected in screw hole; Limiting ring, limiting ring is located between smooth round section and threaded section, and transverse horizontal adjusting bolt is abutted with the lower surface of flange plate through limiting ring.

4. A horizontal calibration aid for a vector sensor calibrator according to claim 1, characterized in that, The radial longitudinal section of connecting rod is oval or rectangular, so as to prevent relative rotation between connecting rod, big end support block and small end support block.

5. A horizontal calibration aid for a vector sensor calibrator according to claim 1, characterized in that, The bottom end of transverse horizontal adjusting foot and longitudinal horizontal adjusting foot is provided with arc surface.

6. A horizontal calibration aid for a vector sensor calibrator according to claim 1, characterized in that, A plurality of lightening holes are formed on big end support block.

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