Complete circumferential pitching composite calibration device

Abstract

The invention discloses a full circumferential pitching composite calibration device which comprises a circumferential calibration mechanism, a pitching calibration mechanism and a composite calibration mechanism, the circumferential calibration mechanism is connected with the pitching calibration mechanism through the composite calibration mechanism, and the circumferential calibration mechanism and the pitching calibration mechanism are linked through the composite calibration mechanism. Precise adjustment of a product to be calibrated in the circumferential direction of 0-360 degrees in the horizontal plane and the pitching composite calibration angle posture of 0-10 degrees in the vertical plane can be achieved, calibration is more accurate, and operation is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of calibration of sophisticated instruments, and particularly relates to a full circumferential pitch composite calibration device. Background Art

[0002] For devices such as product attitude sensors, optoelectronic detection, and seeker heads that require three-dimensional multi-degree-of-freedom sophisticated calibration, existing calibration mechanisms are limited to single-axis calibration and can only meet the adjustment of a single attitude (only rotation or only pitch), and cannot meet the three-dimensional multi-angle calibration requirements of products. Moreover, the benchmarks of existing calibration mechanisms are inconsistent with those of the products, resulting in large errors in the calibration results. Therefore, there is an urgent need to develop a full circumferential pitch composite calibration device. Summary of the Invention

[0003] In view of the above problems, the present invention provides a full circumferential pitch composite calibration device.

[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0005] A full circumferential pitch composite calibration device includes a circumferential calibration mechanism, a pitch calibration mechanism, and a composite calibration mechanism. The circumferential calibration mechanism is connected to the pitch calibration mechanism through the composite calibration mechanism, and the composite calibration mechanism links the two to achieve precise adjustment of the circumferential and pitch composite calibration angular postures.

[0006] Preferably, as the above solution, the composite calibration mechanism includes an upper base, a lower base, and a composite calibration component. The circumferential calibration mechanism is provided on the upper base, and the pitch calibration mechanism is provided on the lower base. The upper base and the lower base serve as support platforms and are linked by a base connection structure to the composite calibration component.

[0007] Preferably, as the above solution, the composite calibration component includes an upper connecting seat and a lower connecting seat, which are rotatably connected by a pin shaft and are respectively fixed to the upper base and the lower base by bolts.

[0008] Preferably, as the above solution, two sets of roller groups are symmetrically arranged on the upper base. Each set of roller groups includes two paired rollers, which are installed on the upper base through roller seats.

[0009] Preferably, as the above solution, the circumferential calibration mechanism includes a rolling ring and a positioning device. The rolling ring is placed on the rollers, and the circumferential side of the rolling ring contacts the rollers. High-precision marking lines are engraved on the rolling ring, and the rolling ring is positioned and connected to the product to be calibrated. The circumferential angle of the product to be calibrated is adjusted by manually rotating the rolling ring; the positioning device is fixedly installed on the upper base for axial positioning of the rolling ring.

[0010] Preferably, as the above solution, the rolling ring includes a front rolling ring and a rear rolling ring; the front rolling ring is composed of two semi-circular holding rings, which are detachably connected by bolts and held at the front end of the product to be calibrated. The product to be calibrated is designed with an opening at the position corresponding to the holding ring; the rear rolling ring is provided with a docking positioning pin hole and a fixed connection hole, and is positioned through the docking positioning pin hole and connected to the rear end of the product to be calibrated by a bolt in the fixed connection hole.

[0011] Preferably, as the above solution, the positioning device includes a front arm, a rear arm and a positioning pin shaft connected between the two. The positioning pin shaft is arranged below the rolling ring and is used for positioning and limiting the rolling ring.

[0012] Preferably, as the above solution, the pitch calibration mechanism includes a lead screw assembly, a rolling wheel and an inclined block. The horizontal plane of the inclined block is fixedly connected to the lower surface of the upper base, and the inclined surface is in rolling contact with the rolling wheel. The inclined block is provided with a high-precision marking line. The rolling wheel is installed on the lead screw assembly and can move along the inclined surface of the inclined block under the drive of the lead screw assembly, thereby adjusting the pitch angle of the product to be calibrated.

[0013] Preferably, as the above solution, the lead screw assembly includes a handwheel, a lead screw and a rolling wheel mounting seat. The handwheel is fixedly connected to the lead screw, and a handle is arranged on the handwheel. The lead screw is installed on the lower base through a bearing and a lead screw mounting seat. The lead screw is threadedly connected to the rolling wheel mounting seat. The rolling wheel mounting seat can move on the lead screw, and the rolling wheel is installed on the rolling wheel mounting seat through a rolling shaft.

[0014] Preferably, the lead screw adopts a trapezoidal lead screw.

[0015] Due to the above structure, the beneficial effects of the present invention are as follows:

[0016] The present invention integrates a circumferential calibration mechanism and a pitch calibration mechanism, and through the linkage operation of the composite calibration mechanism, it can realize the precise adjustment of the circumferential angle of 0-360° in the horizontal plane and the pitch composite calibration angle attitude of 0-10° in the vertical plane of the product to be calibrated, making the calibration more accurate, the operation more convenient, and improving the efficiency, accuracy and safety of the calibration. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the positioning device of the present invention;

[0020] In the figure: 1 - upper base, 2 - lower base, 3 - upper connecting seat, 4 - lower connecting seat, 5 - rear rolling ring, 6 - front rolling ring, 7 - positioning device, 8 - handwheel, 9 - lead screw, 10 - rolling wheel, 11 - bevel spacer, 12 - rotating pin shaft, 13 - positioning pin shaft, 14 - front arm, 15 - rear arm, 16 - roller, 17 - rolling wheel mounting seat, 51 - docking positioning pin hole, 52 - fixed connection hole. Specific embodiments

[0021] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the scope of protection of the present invention.

[0022] As Figure 1 、 Figure 2 shown, this embodiment provides a full circumferential pitch composite calibration device, including a circumferential calibration mechanism, a pitch calibration mechanism, and a composite calibration mechanism. The circumferential calibration mechanism and the pitch calibration mechanism are connected through the composite calibration mechanism, and the composite calibration mechanism links the two to achieve precise adjustment of the circumferential and pitch composite calibration angular postures, making the calibration more accurate and the operation more convenient.

[0023] Among them:

[0024] The composite calibration mechanism includes an upper base 1, a lower base 2, and a composite calibration component. The circumferential calibration mechanism is provided on the upper base 1, and the pitch calibration mechanism is provided on the lower base 2. The upper base 1 and the lower base 2 serve as support platforms and are linked through the base connection structure of the composite calibration component.

[0025] In this embodiment, the composite calibration component includes an upper connecting seat 3 and a lower connecting seat 4, which are rotatably connected through a pin shaft 12, and at the same time, they are respectively fixedly connected to the upper base 1 and the lower base 2 through bolts.

[0026] In this embodiment, two sets of roller groups are symmetrically arranged on the upper base 1. Each set of roller groups includes two pairs of rollers 16, which are installed on the upper base 1 through roller seats.

[0027] The circumferential calibration mechanism includes a rolling ring and a positioning device 7. The rolling ring is placed on the rollers 16, and the circumferential side of the rolling ring contacts the rollers 16. The rollers 16 can be used for the support, circumferential positioning, and limit of the rolling ring. High-precision marking lines are engraved on the rolling ring. The rolling ring is positioned and connected to the product to be calibrated, and the circumferential angle of the product to be calibrated is adjusted by manually rotating the rolling ring; the positioning device 7 is fixedly installed on the upper base 1 for the axial positioning of the rolling ring.

[0028] In this embodiment, the rolling ring includes a front rolling ring 6 and a rear rolling ring 5; the front rolling ring 6 is composed of two semicircular rings, which are detachably connected by bolts and are held at the front end of the product to be calibrated. An opening is designed at the position of the ring corresponding to the product to be calibrated; the rear rolling ring 5 is provided with a docking positioning pin hole 51 and a fixed connection hole 52, which is positioned by the docking positioning pin hole 51 and connected to the rear end of the product to be calibrated by the bolts in the fixed connection hole 52.

[0029] In this embodiment, the positioning device 7 includes a front arm 14, a rear arm 15 and a positioning pin 13 connected therebetween. The positioning pin 13 is arranged below the rolling ring and is used to position and limit the rolling ring. The rolling ring is fixed by the positioning pin 13 on the positioning device to accurately adjust the circumferential angle.

[0030] The pitch calibration mechanism includes a screw assembly, a rolling wheel 10, and an angled pad 11. The horizontal surface of the angled pad 11 is fixedly connected to the lower surface of the upper base 1, and the inclined surface is in rolling contact with the rolling wheel 10. A high-precision marking line is provided on the angled pad 11. The rolling wheel 10 is installed on the screw assembly and can move along the inclined surface of the angled pad 11 driven by the screw assembly, thereby adjusting the pitch angle of the product to be calibrated.

[0031] In this embodiment, the screw assembly includes a handwheel 8, a screw rod 9, and a rolling wheel mounting seat 17. The handwheel 8 is fixedly connected to the screw rod 9. A handle is provided on the handwheel 8. The screw rod 9 is mounted on the lower base 2 through a bearing and a screw mounting seat. The screw rod 9 is threadedly connected to the rolling wheel mounting seat 17. The rolling wheel mounting seat 17 can move on the screw rod 9. A rolling wheel 10 is installed on the rolling wheel mounting seat 17 through a rolling shaft. By shaking the handle of the screw assembly, the rolling wheel 10 moves on the screw rod 9, and the circumferential calibration mechanism above is lifted to a certain angle with the help of the bevel pad 11.

[0032] In this embodiment, the lead screw 9 is a trapezoidal lead screw with a large friction coefficient and a self-locking property after the lifting angle is reached, thereby ensuring accurate and reliable pitch calibration.

[0033] The working principle of the above structure is:

[0034] Connect the front and rear end faces of the product to be calibrated with the two rolling rings (front rolling ring 6 and rear rolling ring 5) of the circumferential calibration mechanism. According to the calibration requirements, manually rotate the rolling rings to rotate the product to the circumferential calibration angle, and then install the positioning pin 13 to position the product circumferentially. Then operate the pitch calibration mechanism, shake the hand wheel 8, drive the rolling wheel 10 on the screw 9, and according to the calibrated pitch angle, the rolling wheel 10 moves to the positioning scale below the bevel pad 11 and stops. The screw 9 is self-locked under gravity to complete the circumferential and pitch composite calibration of the product to be calibrated.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A full circumferential pitch composite calibration device, characterized in that: It includes a circumferential calibration mechanism, a pitching calibration mechanism, and a composite calibration mechanism. The circumferential calibration mechanism and the pitching calibration mechanism are connected by the composite calibration mechanism, and the composite calibration mechanism links the two to achieve precise adjustment of the circumferential and pitching composite calibration angular postures.

2. The all-round pitching composite calibration device according to claim 1, characterized in that: The composite calibration mechanism includes an upper base (1), a lower base (2), and a composite calibration component. The circumferential calibration mechanism is provided on the upper base (1), and the pitching calibration mechanism is provided on the lower base (2). The upper base (1) and the lower base (2) serve as support platforms and are linked by the base connection structure to the composite calibration component.

3. The all-round pitching composite calibration device according to claim 2, characterized in that: The composite calibration component includes an upper connecting seat (3) and a lower connecting seat (4), which are rotationally connected by a pin shaft (12). At the same time, they are respectively fixedly connected to the upper base (1) and the lower base (2) by bolts.

4. A full circumferential pitch composite calibration device according to claim 2, characterized in that: Two groups of roller sets are symmetrically arranged on the upper base (1). Each roller set includes two paired rollers (16), which are installed on the upper base (1) through roller seats.

5. The all-round pitching composite calibration device according to claim 1, characterized in that: The circumferential calibration mechanism includes a rolling ring and a positioning device (7). The rolling ring is placed on the rollers (16), and the circumferential side of the rolling ring contacts the rollers (16). High-precision marking lines are engraved on the rolling ring. The rolling ring is positioned and connected to the product to be calibrated, and the circumferential angle of the product to be calibrated is adjusted by manually rotating the rolling ring; the positioning device (7) is fixedly installed on the upper base (1) for axial positioning of the rolling ring.

6. The full circumferential pitch composite calibration device according to claim 5, characterized in that: The rolling ring includes a front rolling ring (6) and a rear rolling ring (5); The front rolling ring (6) is composed of 2 semi-circular holding rings, which are detachably connected by bolts and hold the front end of the product to be calibrated. The product to be calibrated is designed with an opening at the corresponding position of the holding ring; The rear rolling ring (5) is provided with a docking positioning pin hole (51) and a fixed connection hole (52), is positioned through the docking positioning pin hole (51), and is connected to the rear end of the product to be calibrated by a bolt in the fixed connection hole (52).

7. A full circumferential pitch composite calibration device according to claim 5, characterized in that: The positioning device (7) includes a front arm (14), a rear arm (15), and a positioning pin shaft (13) connected between the two. The positioning pin shaft (13) is provided below the rolling ring for positioning and limiting the rolling ring.

8. A full circumferential pitch composite calibration device according to claim 1, characterized in that: The pitching calibration mechanism includes a lead screw assembly, a rolling wheel (10), and an inclined block (11). The horizontal plane of the inclined block (11) is fixedly connected to the lower surface of the upper base (1), and the inclined surface is in rolling contact with the rolling wheel (10). High-precision marking lines are provided on the inclined block (11). The rolling wheel (10) is installed on the lead screw assembly and can move along the inclined surface of the inclined block (11) under the drive of the lead screw assembly, thereby adjusting the pitching angle of the product to be calibrated.

9. The full circumferential pitch composite calibration device according to claim 8, characterized in that: The lead screw assembly includes a handwheel (8), a lead screw (9), and a rolling wheel mounting seat (17). The handwheel (8) is fixedly connected to the lead screw (9), and a handle is provided on the handwheel (8). The lead screw (9) is installed on the lower base (2) through a bearing and a lead screw mounting seat. The lead screw (9) is threadedly connected to the rolling wheel mounting seat (17), and the rolling wheel mounting seat (17) can move on the lead screw (9). The rolling wheel (10) is installed on the rolling wheel mounting seat (17) through a rolling shaft.

10. A full circumferential pitch composite calibration device according to claim 9, characterized in that: The lead screw (9) uses a trapezoidal lead screw.

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