Swing positioning mechanism

Abstract

The utility model provides a swing positioning mechanism, and relates to the field of variable-angle pneumatic layout test mechanisms. The swing positioning mechanism comprises a swing body and a fixing frame, the swing body swings around a rotating shaft, a first positioning hole system, a second positioning hole system and a third positioning hole system are formed in the swing body, the first positioning hole system comprises a plurality of first positioning holes, the second positioning hole system comprises a plurality of second positioning holes, and the third positioning hole system comprises a plurality of third positioning holes; the positioning angle values of the second positioning holes and the third positioning holes are different and fall into the positioning angle interval of the adjacent first positioning holes; a plurality of positioning insertion mechanisms corresponding to the first positioning holes, the second positioning holes and the third positioning holes are arranged on the fixing frame, and the positioning insertion mechanisms drive the positioning pins to be inserted into the corresponding positioning holes. According to the swing positioning mechanism, the function of indexing locking of the swing body at a small positioning angle can be achieved, and the large-load indexing locking requirement of the mechanism is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to variable angle pneumatic layout test mechanism technical field, concretely relates to a swing positioning mechanism. BACKGROUND

[0002] Variable angle pneumatic layout test mechanism simulates the angle change of the aircraft under different flight attitudes through the swing mechanism, and the large load swing body needs to be positioned and fixed every 0.5° or 1° or above integer times of angle in the swing process due to the working condition requirement of the swing mechanism. Limited by the radius of the swing body and the diameter of the positioning pin, the chord length of the angle interval is limited when the above basic numerical swing degrees, the spacing of the adjacent positioning holes is less than the chord length of the corresponding angle, which leads to the phenomenon that the adjacent positioning locking holes intersect, and cannot be suitable for the demand of large load positioning and locking. SUMMARY

[0003] In view of the problems existing in the prior art, the utility model provides a swing positioning mechanism to improve the problem that the positioning angle value interval of the swing mechanism is small, and the chord length is insufficient to meet the demand of large load indexing and positioning locking.

[0004] To achieve the above object and other related objects, the utility model provides a swing positioning mechanism, the swing positioning mechanism includes swing body and fixed frame. The swing body swings around the rotating shaft, the swing body is provided with a positioning hole part, the positioning hole part includes first positioning hole system, second positioning hole system and third positioning hole system, the first positioning hole system and the second positioning hole system are arranged along the radial direction of the swing body, the third positioning hole system and the first positioning hole system are arranged along the circumferential direction of the swing body, the first positioning hole system includes a plurality of first positioning holes, the second positioning hole system includes a plurality of second positioning holes, the third positioning hole system includes a plurality of third positioning holes, the positioning angle value of the second positioning hole and the third positioning hole is different and falls into the positioning angle interval of the adjacent first positioning hole, the fixed frame is fixedly arranged on one side of the swing body, the fixed frame is provided with a plurality of positioning insertion mechanisms corresponding to the first positioning hole, the second positioning hole and the third positioning hole, and the positioning insertion mechanism drives the positioning pin to be inserted into the corresponding first positioning hole, second positioning hole or third positioning hole.

[0005] In an embodiment of the utility model, the positioning insertion mechanism includes an oil cylinder, the fixed end of the oil cylinder is fixedly connected with the fixed frame, the output shaft of the oil cylinder is fixedly connected with the positioning pin, so that the swing body is fixed when the output shaft is stretched out.

[0006] In an embodiment of the utility model, the fixed frame includes support plate and parallel setting top plate and bottom plate at both ends of support plate, both ends of support plate are fixedly connected with top plate and bottom plate, the through hole for the positioning pin is set on the support plate.

[0007] In an embodiment of the utility model, the boss is arranged along the outer edge of the through hole on both sides of the support plate.

[0008] In an embodiment of the utility model, the recess is arranged on the positioning pin, the recess extends along the axial direction of the positioning pin, and the protrusion matched with the recess is arranged in the through hole.

[0009] In an embodiment of the utility model, the swing positioning mechanism further comprises a guide mechanism for guiding the swing body.

[0010] In an embodiment of the utility model, the guide mechanism comprises a guide rail and a sliding block slidingly connected with the guide rail, the guide rail is fixedly connected with the swing body, the sliding block is fixedly connected with the fixed frame, and the guide rail is in the shape of a circular arc adapted to the movement track of the swing body.

[0011] In an embodiment of the utility model, the positioning insertion mechanism further comprises a detector for detecting the stroke of the positioning pin, and the detector is arranged on one side of the oil cylinder.

[0012] In an embodiment of the utility model, the swing positioning mechanism further comprises a driving device for driving the swing body to swing.

[0013] The swing positioning mechanism of the utility model, a positioning hole system, a second positioning hole system and a third positioning hole system are arranged on the swing body, the first positioning hole system and the second positioning hole system are arranged at intervals along the radial direction of the swing body, the third positioning hole system and the first positioning hole system are arranged at intervals along the circumferential direction of the swing body, the first positioning hole system comprises a plurality of first positioning holes, the second positioning hole system comprises a plurality of second positioning holes, the third positioning hole system comprises a plurality of third positioning holes, the positioning angles of the second positioning holes and the third positioning holes are different and fall within the positioning angle interval of adjacent first positioning holes, a plurality of positioning insertion mechanisms corresponding to the first positioning holes, the second positioning holes and the third positioning holes are arranged on the fixed frame, and the positioning insertion mechanisms drive the positioning pins to be inserted into the corresponding positioning holes. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other embodiments can also be obtained from these drawings without creative labor.

[0015] Figure 1 It is a structure schematic diagram of the swing body in the prior art.

[0016] Figure 2 It is a structure schematic diagram of the swing positioning mechanism in an embodiment of the present application.

[0017] Figure 3 It is a structure schematic diagram of the swing positioning mechanism in an embodiment of the present application. Figure 2 It is a sectional view along A-A direction.

[0018] Figure 4 It is a cooperation schematic diagram of the oil cylinder and the positioning pin in an embodiment of the swing positioning mechanism of the present application.

[0019] Figure 5 It is a structure schematic diagram of the positioning pin in an embodiment of the swing positioning mechanism of the present application.

[0020] Figure 6 It is a left view of the positioning pin in an embodiment of the swing positioning mechanism of the present application.

[0021] Figure 7 It is a structure schematic diagram of the swing body in an embodiment of the swing positioning mechanism of the present application, when the swing body is located at 0° initial position.

[0022] Figure 8 It is a structure schematic diagram of the swing body in an embodiment of the swing positioning mechanism of the present application, when the swing body is rotated clockwise by 1°.

[0023] Figure 9 It is a structure schematic diagram of the swing body in an embodiment of the swing positioning mechanism of the present application, when the swing body is rotated clockwise by 2°.

[0024] Figure 10 It is a structure schematic diagram of the swing body in an embodiment of the swing positioning mechanism of the present application, when the swing body is rotated clockwise by 3°.

[0025] Figure 11 It is a structure schematic diagram of the swing body in an embodiment of the swing positioning mechanism of the present application, when the swing body is rotated clockwise by 4°.

[0026] Figure 12 It is a structure schematic diagram of the swing body in an embodiment of the swing positioning mechanism of the present application, when the swing body is rotated clockwise by 5°.

[0027] Figure 13 Figure 6 is a structural schematic view of the swing positioning mechanism in an embodiment of the present application when the swing body rotates 6° clockwise;

[0028] Figure 14 Figure 7 is a structural schematic view of the swing positioning mechanism in an embodiment of the present application when the swing body rotates 7° clockwise;

[0029] Figure 15 Figure 8 is a structural schematic view of the swing positioning mechanism in an embodiment of the present application when the swing body rotates 8° clockwise;

[0030] Figure 16 Figure 9 is a structural schematic view of the swing positioning mechanism in an embodiment of the present application when the swing body rotates 9° clockwise.

[0031] Element number explanation:

[0032] 100, swing body; 110, positioning hole part; 111, first positioning hole system; 1111, first positioning hole; 112, second positioning hole system; 1121, second positioning hole; 113, third positioning hole system; 1131, third positioning hole; 200, fixed frame; 210, support plate; 211, through hole; 212, boss; 220, top plate; 230, bottom plate; 300, positioning insertion mechanism; 310, oil cylinder; 400, positioning pin; 410, groove; 500, guide mechanism; 510, guide rail; 520, sliding block. DETAILED DESCRIPTION

[0033] The above embodiments and their features can be combined with each other on the premise of no conflict. It should be understood that the term used in the embodiments of the present application is used for describing specific embodiments, but not for limiting the protection scope of the present application. The test method not specified in the following embodiments is usually performed according to the conventional condition or the condition suggested by the manufacturer.

[0034] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0035] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0036] Please see Figure 1 In existing technology, the positioning holes of the oscillating body are arranged at intervals along the circumference of the oscillating body. When the adjacent positioning angles are small, due to the limitations of the radius of the oscillating body and the diameter of the positioning pin, the adjacent positioning holes may have gaps due to mutual interference. For example, the radius between the oscillating body's shaft and the positioning hole is 4875mm, the interval between adjacent positioning angles is 1°, and the diameter of the positioning hole is... The chord length between adjacent positioning holes is approximately 85.08 mm, which is less than the diameter of the positioning hole, causing interference between them. If the interval between adjacent positioning angles is 2°, the chord length between adjacent positioning holes is approximately 170.16 mm, and the minimum physical dimension between adjacent positioning holes is 170.16 mm - 120 mm = 50.16 mm. This dimension is much smaller than the diameter of the indexing pin hole, and the adjacent positioning holes will still interfere with each other. If the interval between adjacent positioning angles is 3°, the chord length between adjacent positioning holes is approximately 255.23 mm, and the minimum physical dimension between adjacent positioning holes is 255.23 mm - 120 mm = 135.23 mm. The adjacent positioning holes will not interfere with each other, but the positioning angle division of the positioning holes is too small, failing to meet the usage requirements. Therefore, this application provides a swing positioning mechanism to achieve the function of indexing and locking of the swing body at a small positioning angle, meeting the indexing and locking requirements of the mechanism under large loads.

[0037] Please see Figure 2 and Figure 3The utility model provides a swing positioning mechanism includes swing body 100 and fixed frame 200. Swing body 100 swing around pivot, be provided with positioning hole part 110 on swing body 100, and positioning hole part 110 includes first positioning hole system 111, second positioning hole system 112 and third positioning hole system 113, and first positioning hole system 111 and second positioning hole system 112 are arranged along the radial direction interval of swing body 100, third positioning hole system 113 and first positioning hole system 111 are arranged along the circumferential direction interval of swing body 100, first positioning hole system 111 includes a plurality of first positioning hole 1111, second positioning hole system 112 includes a plurality of second positioning hole 1121, third positioning hole system 113 includes a plurality of third positioning hole 1131, and the positioning angle value of second positioning hole 1121, third positioning hole 1131 is different and falls into the positioning angle interval of adjacent first positioning hole 1111. The included angle between adjacent first positioning hole 1111, the included angle between adjacent second positioning hole 1121 and the included angle between adjacent third positioning hole 1131 are equal, and the specific size of the included angle and the maximum positioning angle value of positioning hole part 110 can be adjusted according to actual demand.

[0038] In an embodiment, the included angle between adjacent positioning holes is 3°, and the maximum positioning angle value of the positioning hole part 110 is 9°. For example, the first positioning hole system 111 includes four first positioning holes 1111, the second positioning hole system 112 includes three second positioning holes 1121, and the third positioning hole system 113 includes three third positioning holes 1131. The positioning angle values of the four first positioning holes 1111 are 0°, 3°, 6° and 9° respectively, the positioning angle values of the three second positioning holes 1121 are 1°, 4° and 7° respectively, and the positioning angle values of the three third positioning holes 1131 are 2°, 5° and 8° respectively. In this application, the swing body 100 includes two positioning hole parts 110, and the two positioning hole parts 110 are symmetric about the center axis of the swing body 100, so that the reciprocating swing of the swing body 100 can be realized.

[0039] The fixed frame 200 is fixedly arranged on one side of the swing body 100, and the fixed frame 200 is provided with a plurality of positioning insertion mechanisms 300 corresponding to the first positioning hole 1111, the second positioning hole 1121 and the third positioning hole 1131. The positioning insertion mechanism 300 drives the positioning pin 400 to be inserted into the corresponding first positioning hole 1111, second positioning hole 1121 or third positioning hole 1131. In this application, the number of positioning insertion mechanisms 300 is three, that is, one positioning insertion mechanism 300 corresponds to the first positioning hole system 111, the second positioning hole system 112 and the third positioning hole system 113 respectively, and the positioning pin 400 is fixedly arranged on each positioning insertion mechanism 300.

[0040] The swing positioning mechanism of this application, through the cooperation of the first positioning hole system 111, the second positioning hole system 112 and the third positioning hole system 113, avoids the problem of intersecting gaps between adjacent positioning holes, and realizes the indexing and locking function when the diameter of the swing body 100 is large and the positioning angle value interval is small, which can meet the indexing and locking requirements of the mechanism under large load.

[0041] Please see Figure 3 In one embodiment, the positioning insertion mechanism 300 includes a hydraulic cylinder 310. The fixed end of the hydraulic cylinder 310 is fixedly connected to the fixing frame 200, and the output shaft of the hydraulic cylinder 310 is fixedly connected to a positioning pin 400 to fix the swing body 100 when the output shaft of the hydraulic cylinder 310 extends. Specifically, when the swing body 100 rotates around the pivot to the positioning hole at the corresponding angle, the output shaft of the corresponding hydraulic cylinder 310 drives the positioning pin 400 fixedly connected to it to extend. The positioning pin 400 extends into the corresponding positioning hole under the push of the output shaft, thereby positioning the swing body 100. In other embodiments, the positioning insertion mechanism 300 also includes a detector (not shown in the figure) for detecting the stroke of the positioning pin 400. The detector is disposed on one side of the hydraulic cylinder 310. For example, the detector is a potentiometer, which is fixedly mounted on the fixing frame 200 and located on one side of the hydraulic cylinder 310. The detector can determine the movement distance of the positioning pin 400 by detecting the movement distance of the output shaft of the hydraulic cylinder 310, thereby determining whether the positioning pin 400 is fully in place or fully retracted. This prevents the positioning pin 400 from being incompletely extended or retracted, thus avoiding any impact on the oscillation and load of the swing body 100. It should be noted that potentiometers are widely used in the industry, their structure and working principle are well-known, and they can be obtained through general commercial means; therefore, they will not be elaborated upon further here.

[0042] Please see Figure 3 In one embodiment, the fixing frame 200 includes a support plate 210 and a top plate 220 and a bottom plate 230 arranged parallel to both ends of the support plate 210. One end of the support plate 210 is fixedly connected to the top plate 220, and the other end of the support plate 210 is fixedly connected to the bottom plate 230. The support plate 210 is provided with a through hole 211 for the positioning pin 400 to pass through. On both sides of the support plate 210, a boss 212 is provided along the outer periphery of the through hole 211. The boss 212 can ensure that the positioning pin 400 has a sufficiently large compressive contact surface when locking and positioning the swing body 100, thus ensuring its contact strength.

[0043] Please see Figures 4 to 6In one embodiment, the locating pin 400 is provided with a groove 410 extending axially along the locating pin 400, and a protrusion (not shown in the figure) matching the groove 410 is provided in the through hole 211. The groove 410 and the protrusion cooperate to provide a guiding function for the locating pin 400 when it extends and retracts, preventing deflection during movement. For example, the locating pin 400 is threadedly connected to the output shaft to facilitate replacement of the locating pin 400 as needed. Specifically, the output shaft is provided with an external thread, and the connecting part of the locating pin 400 is provided with an internal thread adapted to the external thread. The fixed connection between the locating pin 400 and the output shaft is achieved through the cooperation of the internal and external threads. The protrusion matching the groove 410 in the through hole 211 also prevents the locating pin 400 from rotating, preventing the locating pin 400 from loosening from the output shaft.

[0044] Please see Figure 3 In one embodiment, the swing positioning mechanism further includes a guide mechanism 500 for guiding the swing body 100. The number of guide mechanisms 500 is not limited and can be adaptively adjusted according to the size of the swing body 100 and the specific application scenario of the swing positioning mechanism. In this embodiment, there are two guide mechanisms 500, one along the axial direction of the swing body 100, located on both sides of the positioning hole portion 110. Each guide mechanism 500 includes a guide rail 510 and a slider 520 slidably connected to the guide rail 510. The guide rail 510 is fixedly connected to the swing body 100, and the slider 520 is fixedly connected to the fixing frame 200. The guide rail 510 is an arc shape adapted to the movement trajectory of the swing body 100. The guide mechanism 500 can also support the weight of the swing body 100 and prevent structural deformation. This application does not limit the power source for driving the swing body 100 to swing; it can be driven manually or by an external thrust device. For example, the swing positioning mechanism also includes a drive device (not shown) for driving the swing body 100 to swing.

[0045] Please see Figures 7 to 16 Taking an angle of 1° between adjacent positioning holes and a maximum positioning angle of 9° as an example, the working state of the swing positioning mechanism of this application is as follows: Figure 7 As shown, when the swing body 100 is in the initial 0° position, the positioning insertion mechanism 300 corresponding to the first positioning hole system 111 inserts the positioning pin 400 into the first positioning hole 1111 with a positioning angle of 0°. The positioning pin 400 corresponding to the second positioning hole system 112 is located to the left of the second positioning hole 1121 with a positioning angle of 1° and is in a retracted state. The positioning pin 400 corresponding to the third positioning hole system 113 is located to the left of the third positioning hole 1131 with a positioning angle of 2° and is in a retracted state. Figure 8As shown, when the swing body 100 swings clockwise to a position with a positioning angle of 1°, the positioning pin 400 corresponding to the second positioning hole system 112 is inserted into the second positioning hole 1121 with a positioning angle of 1°. The positioning pin 400 corresponding to the first positioning hole system 111 is located to the right of the first positioning hole 1111 with a positioning angle of 0° and is in a retracted state. The positioning pin 400 corresponding to the third positioning hole system 113 is located to the left of the third positioning hole 1131 with a positioning angle of 2° and is in a retracted state. Figure 9 As shown, when the swing body 100 swings clockwise to a position with a positioning angle of 2°, the positioning pin 400 corresponding to the third positioning hole system 113 is inserted into the third positioning hole 1131 with a positioning angle of 2°. The positioning pin 400 corresponding to the first positioning hole system 111 is located to the left of the first positioning hole 1111 with a positioning angle of 1° and the positioning pin 400 is in a retracted state. The positioning pin 400 corresponding to the second positioning hole system 112 is located to the right of the second positioning hole 1121 with a positioning angle of 1° and the positioning pin 400 is in a retracted state.

[0046] like Figures 10 to 15 As shown, when the swing body 100 swings clockwise to 3°, 4°, 5° and 6°, 7°, 8° respectively, the positioning insertion mechanisms 300 corresponding to the first positioning hole system 111, the second positioning hole system 112, and the third positioning hole system 113 alternately operate twice. The alternation pattern of the positioning insertion mechanisms 300 when the swing body 100 swings clockwise to 3°, 4°, 5° is the same as the alternation pattern when swinging to 0°, 1°, 2°. Similarly, the alternation pattern of the positioning insertion mechanisms 300 when the swing body 100 swings clockwise to 6°, 7°, 8° is also the same as the alternation pattern when swinging to 0°, 1°, 2°. Figure 16 As shown, when the swing positioning structure swings clockwise to 9°, the positioning insertion mechanism 300 corresponding to the first positioning hole system 111 operates once. Accordingly, the positioning locking function with a total positioning angle value of 9° and a positioning angle value interval of 1° is achieved through the alternating operation of the positioning insertion mechanisms 300 corresponding to the first positioning hole system 111, the second positioning hole system 112, and the third positioning hole system 113.

[0047] When the oscillating body 100 rotates counterclockwise, its positioning process is the same as that when it rotates clockwise, and will not be described again here.

[0048] The present invention discloses a swing positioning mechanism comprising a swing body with a first positioning hole system, a second positioning hole system, and a third positioning hole system. The first and second positioning hole systems are arranged radially spaced apart from each other on the swing body, while the third positioning hole system is arranged circumferentially spaced from each other on the swing body. The first positioning hole system includes multiple first positioning holes, the second positioning hole system includes multiple second positioning holes, and the third positioning hole system includes multiple third positioning holes. The positioning angle values ​​of the second and third positioning holes are different and fall within the positioning angle range of adjacent first positioning holes. A fixing frame is provided with multiple positioning insertion mechanisms corresponding to the first, second, and third positioning holes. The positioning insertion mechanisms drive positioning pins to be inserted into the corresponding positioning holes. The swing positioning mechanism of this application can realize the function of indexing and locking the swing body at a small positioning angle, meeting the indexing and locking requirements of the mechanism under large loads. Therefore, the present invention effectively overcomes some practical problems in the prior art and thus has high utilization value and significance.

[0049] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A swing positioning mechanism, characterized by, The application relates to a swing positioning mechanism. The swing body is provided with a positioning hole part, the positioning hole part comprises a first positioning hole system, a second positioning hole system and a third positioning hole system, the first positioning hole system and the second positioning hole system are arranged at intervals along the radial direction of the swing body, the third positioning hole system and the first positioning hole system are arranged at intervals along the circumferential direction of the swing body, the first positioning hole system comprises a plurality of first positioning holes, the second positioning hole system comprises a plurality of second positioning holes, the third positioning hole system comprises a plurality of third positioning holes, the positioning angle values of the second positioning holes and the third positioning holes are different and fall into the positioning angle interval of adjacent first positioning holes. A fixing frame is fixedly arranged on one side of the swing body, the fixing frame is provided with a plurality of positioning insertion mechanisms corresponding to the first positioning holes, the second positioning holes and the third positioning holes, and the positioning insertion mechanisms drive positioning pins to be inserted into the corresponding first positioning holes, second positioning holes or third positioning holes.

2. The swing positioning mechanism of claim 1, wherein The positioning insertion mechanism comprises an oil cylinder, the fixed end of the oil cylinder is fixedly connected with the fixing frame, the output shaft of the oil cylinder is fixedly connected with the positioning pin, and the swing body is fixed when the output shaft is stretched out.

3. The swing positioning mechanism of claim 1, wherein The fixing frame comprises a support plate, a top plate and a bottom plate which are arranged in parallel at both ends of the support plate, the both ends of the support plate are fixedly connected with the top plate and the bottom plate respectively, and the support plate is provided with through holes for the positioning pins to pass through.

4. The swing positioning mechanism of claim 3, wherein Bosses are arranged along the outer edge of the through holes at both sides of the support plate.

5. The swing positioning mechanism of claim 3, wherein The positioning pin is provided with a groove which extends along the axial direction of the positioning pin, and the through hole is provided with a protrusion which matches the groove.

6. The swing positioning mechanism of claim 1, wherein The swing positioning mechanism further comprises a guide mechanism for guiding the swing body.

7. The swing positioning mechanism of claim 6, wherein The guide mechanism comprises a guide rail and a sliding block which is slidingly connected with the guide rail, the guide rail is fixedly connected with the swing body, the sliding block is fixedly connected with the fixing frame, and the guide rail is in the shape of a circular arc which matches the movement track of the swing body.

8. The swing positioning mechanism of claim 2, wherein The positioning insertion mechanism further comprises a detector for detecting the stroke of the positioning pin, and the detector is arranged on one side of the oil cylinder.

9. The swing positioning mechanism of claim 1, wherein, The swing positioning mechanism further comprises a driving device for driving the swing body to swing.

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