Steering engine mechanical zero calibration tool

Abstract

The steering engine mechanical zero calibration tool comprises a clamping structure and a zero adjustment mechanism. The clamping mechanism is used for clamping and fixing a steering engine to be adjusted, and the zero position adjusting mechanism is arranged on one side of the clamping mechanism and used for clamping and adjusting an output shaft transverse piece of the steering engine; the zero position adjusting mechanism comprises a first support arranged in the longitudinal direction, the section of the first support is in a concave shape, and a concave cavity of the first support directly faces the clamping mechanism. The first screw is in threaded connection with the top plate of the first support, the end of the first screw is in shaft connection with a first sliding block arranged in the concave cavity, and the clamping face of the first sliding block and the bottom plate is a horizontal plane; the first sliding block is driven by the first screw to move in the longitudinal direction and used for cooperating with the bottom plate to clamp and adjust the output shaft transverse piece of the steering engine to be horizontal. The tool is simple in structure, practical and convenient, the defects that an existing tool is inconvenient to operate and poor in calibration consistency are effectively overcome, the influence of operators on mechanical zero position consistency is reduced, efficiency is improved, the requirements of batch production and calibration are particularly met, and high practicability and wide applicability are achieved.

Description

Technical Field

[0001] The invention relates to a calibration tool, in particular to a steering gear mechanical zero position calibration tool, and belongs to the technical field of test tooling. Background Art

[0002] The servo is a driving device for the deflection of the aircraft's control surfaces. The servo receives control signals from the onboard flight control computer, generates a set angle of deflection, drives the control surfaces to deflect through the connecting mechanism, and forms the required aerodynamic control torque for the aircraft, thereby realizing maneuverable flight of the aircraft.

[0003] When the servo is in no-load state, in order to ensure that it is in the initial state after installation with the aircraft control surface, the servo mechanical zero position and electrical zero position need to be calibrated separately and ensure that the two are consistent, so that the control device can effectively control the aircraft and avoid accidents.

[0004] The existing mechanical zero position calibration mechanism of the servo is not designed accordingly for the existing structural form of the servo during use, which is inconvenient to use. In addition, there is a certain deviation in the mechanical zero position due to different personnel. The reference zero position is the basis for the servo to achieve angle and position control, and all turning angles are based on the reference zero position; therefore, the calibration of the mechanical zero position is particularly important, and it is necessary to improve the accuracy of the mechanical zero position calibration while ensuring the consistency of the product to meet the needs of mass production. Summary of the invention

[0005] In order to solve the deficiencies of the prior art, the object of the present invention is to provide a steering gear mechanical zero position calibration tool.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: A servo mechanical zero position calibration tool, comprising a clamping structure and a zero position adjustment mechanism; The clamping mechanism is used to clamp and fix the steering gear to be adjusted. The zero position adjustment mechanism is arranged on one side of the clamping structure and is used for clamping and adjusting the output shaft transverse piece of the steering gear; The zero position adjustment mechanism comprises a first support with a "concave" cross section arranged in the longitudinal direction, wherein the concave cavity of the first support faces the clamping mechanism; a first screw rod threadedly connected to the top plate of the first support, wherein the end of the first screw rod is axially connected to a first slider in the concave cavity, and the clamping surface of the first slider and the bottom plate is a horizontal plane; The first sliding block is driven by the first screw rod to move longitudinally, and is used to cooperate with the bottom plate to clamp and adjust the output shaft cross piece of the steering gear to a horizontal level.

[0007] The above-mentioned clamping structure includes a horizontally arranged second support with a "concave" cross-section, a second screw rod screwed to a side plate of the second support, and an end of the second screw rod axially connected to a second slider placed in the concave cavity; the second slider is used to cooperate with the other side plate of the second support to clamp and fix the servo.

[0008] Furthermore, the second support is mounted on the base, and the side end of the base extends toward the side of the second base, and a pair of parallel sliding rods are vertically arranged on the extension section; The first support and the sliding hole matching the sliding rod are arranged on the base.

[0009] Furthermore, a baffle is connected to the top of the sliding rod.

[0010] In the concave cavity, the inner side wall of the first support is provided with a first sliding groove along the longitudinal direction, and the inner side surface of the first sliding block is provided with a first guide block matching the first sliding groove.

[0011] Furthermore, in the concave cavity, a second sliding groove is provided in the transverse direction on the bottom inner wall of the second sliding block, and a second guide block matching the second sliding groove is provided on the bottom surface of the second sliding block.

[0012] The present invention is beneficial in that: The invention discloses a mechanical zero position calibration tool for a steering gear, which utilizes a second support and a second support arranged transversely and longitudinally to form a cross-shaped clamping cavity, performs horizontal clamping in the transverse direction, and performs horizontal zero position calibration in the longitudinal direction.

[0013] The present invention discloses a mechanical zero position calibration tool for a steering gear, which has a simple structure, is practical and convenient. The tool can be adapted to steering gears of various sizes through a slidable first support. The base provides support and a horizontal reference to ensure the accuracy of the mechanical zero position of the steering gear. The tool effectively solves the shortcomings of the existing tool, such as inconvenient operation and poor calibration consistency, reduces the influence of operators on the mechanical zero position consistency, improves efficiency, and especially meets the needs of mass production and calibration. The tool has strong practicality and wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the servo mechanical zero position calibration tooling.

[0015] Figure 2 This is a side view of the structural schematic diagram of the servo mechanical zero position calibration tooling.

[0016] Figure 3 This is a top view of the structural schematic diagram of the servo mechanical zero position calibration tooling.

[0017] The meanings of the marks in the accompanying drawings are as follows: 1. servo, 2. output shaft cross piece, 3. first support, 4. first slider, 5. first screw, 6. second support, 7. second slider, 8. second screw, 9. base, 10. slide rod, 11. top plate. DETAILED DESCRIPTION

[0018] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] A steering gear mechanical zero position calibration tool consists of a base 9, a clamping structure and a zero position adjustment mechanism.

[0020] The clamping structure consists of a second support 6, a second slider 7 and a second screw 8. The second support 6 is horizontally arranged in the transverse direction, and the cross section is "concave". The second support 6 is mounted on or fixed on the base 9. In the transverse direction, a second slide groove is provided on the bottom inner wall of the second support 6. The second slider 7 with a "convex" cross section is placed in the concave cavity of the second support 6, and its protruding part is a second guide block matching the second slide groove. In the transverse direction, the end of the second screw 8 screwed to one side plate of the second bracket is axially connected to the second slider 7. That is, by rotating the second screw 8, the second slider 7 can move horizontally along the second slide groove. When it moves to the other side plate of the second bracket, it forms a clamping and fixing effect on the servo 1 placed in the concave cavity.

[0021] The top surface of the base 9 is a horizontal surface, and one side of the base 9 has an extension section on the side surface of the second support 6 for fixing the zero position adjustment mechanism.

[0022] The zero position adjustment mechanism is composed of a first support 3 , a first slider 4 and a first screw rod 5 .

[0023] A pair of parallel slide bars 10 are vertically arranged on the extension section of the base 9, and the first support 3 is provided with a pair of slide holes matching the slide bars 10, through which the first support 3 can be slidably placed on the top surface of the extension section of the base 9. The top end of the slide bar 10 is connected with a baffle.

[0024] The cross section of the first support 3 is in a sideways "concave" shape, and the concave cavity opening faces the second support 6. The inner side wall of the first support 3 is provided with a first slide groove in the longitudinal direction. The first slider 4 with a "convex" cross section is placed laterally in the concave cavity of the first support 3, and its protruding portion is a first guide block matching the first slide groove. The first screw rod 5, which is screwed to the top plate 11 of the first support 3, has its end axially connected to the first slider 4 in the concave cavity, and the clamping surface of the first slider 4 and the bottom plate is a horizontal plane. That is, by rotating the first screw rod 5 based on the top plate 11, the first slider 4 can slide along the first slide groove in the concave cavity, and cooperate with the bottom plate of the first support 3 to clamp the output shaft cross piece 2 of the servo 1.

[0025] Since the clamping surface between the first sliding block 4 and the bottom plate is a horizontal plane, the output shaft cross piece 2 of the steering gear 1 is adjusted to a horizontal state, that is, a zero calibration is performed.

[0026] Preferably, to facilitate the reference zeroing, the top surface of the base 9 is set as the mechanism support plane, and the clamping surface of the bottom plate is parallel to the mechanism support plane. When in use, the top surface of the base 9 is set as a horizontal plane by measurement, and then zero calibration is performed.

[0027] Preferably, a wear-resistant coating is provided on the surface of the slide rod 10 and lubricant is applied to prevent the first support 3 from sliding poorly or tilting due to friction after repeated use, thereby affecting the effect of zero-position calibration.

[0028] Preferably, a plastic protective film is provided on the side plates of the second sliding block 7 and the second bracket to prevent the clamping pressure from damaging the surface of the steering gear 1 .

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.

Claims

1. A servo mechanical zero position calibration tool, characterized in that: It includes a clamping structure and a zero position adjustment mechanism; The clamping mechanism is used to clamp and fix the steering gear to be adjusted. The zero position adjustment mechanism is arranged on one side of the clamping structure and is used for clamping and adjusting the output shaft transverse piece of the steering gear; The zero position adjustment mechanism comprises a first support with a "concave" cross section arranged in the longitudinal direction, wherein the concave cavity of the first support faces the clamping mechanism; a first screw rod threadedly connected to the top plate of the first support, wherein the end of the first screw rod is axially connected to a first slider in the concave cavity, and the clamping surface of the first slider and the bottom plate is a horizontal plane; The first sliding block is driven by the first screw rod to move longitudinally, and is used to cooperate with the bottom plate to clamp and adjust the output shaft cross piece of the steering gear to a horizontal level.

2. The tooling according to claim 1, characterized in that: The clamping structure includes a horizontally arranged second support with a "concave" cross-section, a second screw rod threadedly connected to a side plate of the second support, and an end of the second screw rod axially connected to a second slider placed in the concave cavity; the second slider is used to cooperate with the other side plate of the second support to clamp and fix the steering gear.

3. The tooling according to claim 2, characterized in that: The second support is mounted on the base, and the side end of the base extends toward the side of the second base, and a pair of parallel sliding rods are vertically arranged on the extension section; The first support and the sliding hole matching the sliding rod are arranged on the base.

4. The tooling according to claim 3, characterized in that: The top end of the sliding rod is connected with a baffle.

5. The tooling according to claim 1, characterized in that: In the concave cavity, the inner side wall of the first support is provided with a first sliding groove along the longitudinal direction, and the inner side surface of the first sliding block is provided with a first guide block matching the first sliding groove.

6. The tooling according to claim 2, characterized in that: In the concave cavity, a second sliding groove is arranged in the transverse direction on the bottom inner wall of the second sliding block, and a second guide block matching the second sliding groove is arranged on the bottom surface of the second sliding block.

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