CN113847859A - Compact double-shaft manual angle reference rotary table - Google Patents
Compact double-shaft manual angle reference rotary table Download PDFInfo
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- CN113847859A CN113847859A CN202111273681.5A CN202111273681A CN113847859A CN 113847859 A CN113847859 A CN 113847859A CN 202111273681 A CN202111273681 A CN 202111273681A CN 113847859 A CN113847859 A CN 113847859A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
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Abstract
A compact double-shaft manual angle reference rotary table comprises a base, wherein an azimuth shaft is mounted at the upper end of the base through an azimuth bearing assembly, an azimuth normally-closed end tooth locking assembly connected with the bottom of the azimuth shaft is arranged in the base, and the lower end of the azimuth normally-closed end tooth locking assembly is connected with an azimuth cam assembly arranged on the outer side of the base through an azimuth translation plate, an azimuth connecting rod B and an azimuth connecting rod A in sequence; the utility model discloses a pitching mechanism, including bearing shaft, pitching translation board, pitching cam screw, pitch dial, pitch bearing assembly, pitch normal close end tooth locking assembly, pitch bearing assembly, pitch translation board, pitch cam screw, pitch dial, pitch bearing assembly, pitch shaft's right-hand member is connected with L type pitch frame. The invention has the characteristics of large testing range, simple and practical operation.
Description
Technical Field
The invention belongs to the field of angle position calibration and test system calibration application, and particularly relates to a compact double-shaft manual angle reference rotary table.
Background
The commonly used angle sensors include a circular grating, a synchronizer, a time grating, a rotary transformer and the like, wherein the circular grating as a precision measuring tool has wide application in the fields of precision instruments, precision positioning, high-precision machining and the like, and all the angle sensors must use special electronic equipment to calculate angle information and display the angle information in a digital display mode.
The metal polygon is used as a measuring angle reference, the commonly used metal polygon has 23 or 24 surfaces, the error between each small mirror surface is given by precision measuring equipment, and the maximum error amount is generally less than 0.5'; in the precise angle measurement, the measured object needs to be corrected by the error amount to obtain a more accurate measurement result.
The commonly used mechanical shafting locking mechanism comprises an electromagnetic brake, an expansion locking mechanism, a pin locking mechanism, an end gear locking mechanism and the like. Wherein move the tooth and all pass through precision finishing with the fixed tooth in the end gear locking mechanism, mechanical resolution ratio minimum can realize 1 degree, and positioning accuracy is 0.2 angular seconds, and the number of teeth of terminal surface movable tooth and fixed gear among the end gear locking mechanism of this case application is 72 teeth, and both intermeshing can realize that two shafting mechanical position resolutions are 5 degrees.
The main problems existing are: in the actual test process, taking a prism with 24 surfaces as an example, firstly using a photoelectric autocollimator to aim at a certain reference surface, recording the reference surface as 1 surface, then rotating for 15 degrees, reading the autocollimator reading of the second surface, and so on until all the reference surfaces are tested; when the test piece is manually rotated to the stop position, the test piece is usually stopped at the position which is integral multiple of 15 degrees by virtue of friction force, so that the test process is extremely inconvenient; some test tools adopt a pin positioning mode, so that the position precision is not easy to guarantee, and the number of positions is small; and the existing small-sized angle reference rotary table only has an azimuth axis, and the test range is limited.
On the other hand, in order to improve the supporting rigidity, two bearing assemblies are generally arranged in a left-right symmetrical mode on the pitch shaft system of the double-shaft turntable, so that the overall size and weight of the pitch frame and the pitch shaft system are large.
Disclosure of Invention
The invention aims to provide a compact double-shaft manual angle reference turntable to solve the problems in the background technology, and the compact double-shaft manual angle reference turntable has the characteristics of large test range, and simplicity and practicability in operation.
The technical scheme adopted for achieving the purpose is that the compact double-shaft manual angle reference rotary table comprises a base, wherein an azimuth shaft is mounted at the upper end of the base through an azimuth bearing assembly, an azimuth normally-closed end tooth locking assembly connected with the bottom of the azimuth shaft is arranged in the base, and the lower end of the azimuth normally-closed end tooth locking assembly is connected with an azimuth cam assembly arranged on the outer side of the base through an azimuth translation plate, an azimuth connecting rod B and an azimuth connecting rod A in sequence; t type position frame is installed to the upper end of azimuth axis, installs the pitch axis through pitch bearing assembly in the T type position frame, and the left end of pitch axis is equipped with every single move normally closed end tooth locking Assembly, and every single move normally closed end tooth locking Assembly's the outside is equipped with the every single move calibrated scale of being connected with T type position frame left end, every single move normally closed end tooth locking Assembly's left end is connected with the every single move cam of arranging the every single move calibrated scale outside through every single move translation board, every single move cam screw in proper order, the right-hand member of every single move axis is connected with L type every single move frame and balancing weight, L type every single move frame upper end is equipped with the arris and crosses the cab apron, and the arris crosses cab apron upper end and is connected with the multiaspect arris body through the arris dabber.
Further, position normally closed end tooth locking Assembly includes the position end tooth base with base fixed connection, and position end tooth base lower extreme is equipped with position end tooth cross, and position end tooth cross upper end is equipped with the position fixed gear, and the meshing of position fixed gear upper end has the position moving gear with azimuth axis fixed connection, position end tooth cross lower extreme and azimuth translation board fixed connection.
Furthermore, the azimuth cam assembly comprises an azimuth cam bracket fixed on the outer side of the base, an azimuth cam screw is arranged in the azimuth cam bracket, an azimuth cam is arranged at the upper end of the azimuth cam bracket, and the azimuth cam is connected with the azimuth connecting rod A through the azimuth cam screw; and a connecting rod bearing support is arranged on one side of the azimuth cam support, and a connecting rod bearing matched with the A azimuth connecting rod is arranged in the connecting rod bearing support.
Furthermore, every single move normally closed end tooth locking Assembly is including fixing the every single move end tooth base at T type position frame left end, and the one end of every single move end tooth base is equipped with every single move end tooth cross, one side and the every single move translation board of every single move end tooth cross are connected, and the opposite side of every single move end tooth cross is fixed with the every single move fixed gear, and one side meshing of every single move fixed gear has the every single move movable gear of being connected with the every single move axle.
Furthermore, the B-direction connecting rod and the direction translation plate are connected in a ball and conical surface structure matching mode.
Advantageous effects
Compared with the prior art, the invention has the following advantages.
1. The pitching shafting adopts a single bearing assembly, the rotation range of the L-shaped pitching frame around the pitching shafting is limited to +/-90 degrees, the actual use requirement is met, the overall size and the overall weight of the rotary table are reduced, and the use, the transportation and the storage of a user are facilitated;
2. the pitching cam and the azimuth cam are arranged outside the rotary table, and a user can lock and unlock the pitching shaft and the azimuth shaft by rotating the pitching cam and the azimuth cam;
3. the polygon is matched with the face gear locking assembly for use, so that an angle reference can be provided for a calibration or test system, and the system error of the test system is calibrated; the compact double-shaft manual angle reference rotary table can simulate a reference hemisphere, and richer test data are provided.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic three-dimensional structure of the present invention;
FIG. 2 is a cross-sectional front view of the present invention;
FIG. 3 is a cross-sectional right side view of the present invention;
FIG. 4 is a cross-sectional view of the linkage mechanism of the present invention;
FIG. 5 is a structural elevation view of the present invention;
FIG. 6 is a side view of the structure of the present invention;
FIG. 7 is a top view of the structure of the present invention;
FIG. 8 is a schematic view of a normally closed locking assembly of the present invention;
FIG. 9 is a schematic view of a linkage mechanism of the present invention;
FIG. 10 is a schematic view of a base of the normally closed locking assembly of the present invention;
FIG. 11 is a schematic view of a normally closed end tooth spider according to the present invention;
FIG. 12 is a schematic view of a pitch assembly of the present invention;
FIG. 13 is a schematic view of an orientation assembly of the present invention.
Detailed Description
The invention will be better understood by the following description of embodiments thereof, but the applicant's specific embodiments are not intended to limit the invention to the particular embodiments shown, and any changes in the definition of parts or features and/or in the overall structure, not essential changes, are intended to define the scope of the invention.
The invention is further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1-13, a compact dual-axis manual angle reference turntable comprises a base 4, wherein an azimuth shaft 15 is mounted at the upper end of the base 4 through an azimuth bearing assembly 16, an azimuth normally-closed end tooth locking assembly 24 connected with the bottom of the azimuth shaft 15 is arranged in the base 4, and the lower end of the azimuth normally-closed end tooth locking assembly 24 is connected with an azimuth cam assembly 36 arranged outside the base 4 through an azimuth translation plate 23, an azimuth connecting rod B22 and an azimuth connecting rod a 21 in sequence; t type position frame 2 is installed to azimuth axis 15's upper end, installs pitch axle 13 through pitch bearing assembly 14 in the T type position frame 2, and the left end of pitch axle 13 is equipped with pitch normally closed end tooth locking component 19, and the outside of pitch normally closed end tooth locking component 19 is equipped with the pitch calibrated scale 9 of being connected with the 2 left ends of T type position frame, the left end of pitch normally closed end tooth locking component 19 is connected with the every single move cam 8 of arranging the pitch calibrated scale 9 outside in through every single move translation board 18, every single move cam screw 17 in proper order, the right-hand member of pitch axle 13 is connected with L type every single move frame 1 and balancing weight 3, L type every single move frame 1 upper end is equipped with the arris and crosses cab apron 10, and the arris crosses cab apron 10 upper end and is connected with multiaspect arris 12 through arris dabber 11.
The azimuth normally-closed end tooth locking assembly 24 comprises an azimuth end tooth base 34 fixedly connected with the base 4, an azimuth end tooth cross 35 is matched in the azimuth end tooth base 34, an azimuth fixed gear 33 is arranged at the upper end of the azimuth end tooth cross 35, an azimuth gear 32 fixedly connected with an azimuth shaft 15 is meshed at the upper end of the azimuth fixed gear 33, and the lower end of the azimuth end tooth cross 35 is fixedly connected with an azimuth translation plate 23.
The azimuth cam component 36 comprises an azimuth cam bracket 27 fixed on the outer side of the base 4, an azimuth cam screw 20 is arranged in the azimuth cam bracket 27, an azimuth cam 6 is arranged at the upper end of the azimuth cam bracket 27, and the azimuth cam 6 is connected with an A azimuth connecting rod 21 through the azimuth cam screw 20; one side of the azimuth cam bracket 27 is provided with a connecting rod bearing bracket 26, and a connecting rod bearing 25 matched with the A azimuth connecting rod 21 is arranged in the connecting rod bearing bracket 26.
The pitching normally-closed end tooth locking assembly 19 comprises a pitching end tooth base 28 fixed at the left end of the T-shaped azimuth frame 2, a pitching end tooth cross 29 is matched in the pitching end tooth base 28, one side of the pitching end tooth cross 29 is connected with the pitching translation plate 18, the other side of the pitching end tooth cross 29 is fixed with a pitching fixed gear 30, and one side of the pitching fixed gear 30 is meshed with a pitching moving gear 31 connected with the pitching shaft 13.
The B direction connecting rod 22 and the direction translation plate 23 are connected in a ball and cone structure matching mode.
The invention is a two-axis turntable, the outer ring is an azimuth axis, the inner ring is a pitching axis, the L-shaped pitching frame 1 realizes a mechanical limiting function of +/-90 degrees by means of self characteristics, the overall dimension and self weight of the turntable are reduced to the maximum extent, and the turntable is convenient to carry and store; a pitching normally closed end tooth locking assembly 19 is introduced into one end of the pitching shaft 13, and the rotation amount is directly converted into the axial movement amount to a pitching translation plate 18 by virtue of the pitching cam 8, so that the axial movement amount is transmitted to the pitching normally closed end tooth locking assembly 19; an azimuth normally-closed end tooth locking assembly 24 is introduced into the tail end of the azimuth shaft 15, and the rotation amount is converted into the axial movement amount by virtue of the azimuth cam 6, and the axial movement amount is transmitted to the A azimuth connecting rod 21, the B azimuth connecting rod 22 and the azimuth translation plate 23 in sequence and finally transmitted to the azimuth normally-closed end tooth locking assembly 24.
The compact double-shaft manual angle reference turntable has the working principle that the compact double-shaft manual angle reference turntable is a serial mechanism with the orthogonal pitch shaft 13 and the azimuth shaft 15, the L-shaped pitch frame 1 is fixed with the pitch shaft 13, the pitch shaft 13 is supported by the pitch bearing assembly 14, the L-shaped pitch frame 1 rotates around the axis of the pitch shaft 13, and the L-shaped pitch frame 1 is limited by the T-shaped azimuth frame 1 when rotating to a positive (negative) 90-degree position; when the pitching shaft end is locked, the rotating pitching cam 8 transmits the cam eccentricity to the pitching normally closed end tooth locking assembly 19 through the pitching cam screw 17 and the pitching translation plate 18 to realize the loosening of the pitching shaft 13, at the moment, the pitching shaft 13 can rotate freely, when the rotating shaft rotates to a specified position, the rotating pitching cam 8 rotates reversely, and the locking of a pitching shaft system is realized by the self characteristic of the pitching normally closed end tooth locking assembly 19; when the azimuth shaft end is locked, the azimuth cam 6 is rotated to transmit the cam eccentricity to the azimuth normally-closed end tooth locking assembly 24 through the A azimuth connecting rod 21, the B azimuth connecting rod 22 and the azimuth translation plate 23, so that the azimuth shaft 15 is loosened, the azimuth shaft 15 can rotate freely, and when the azimuth cam 6 is rotated to a specified position, the azimuth shaft system is locked by means of the characteristic of the azimuth normally-closed end tooth locking assembly 24.
When the invention is implemented specifically, the base 4 is taken as a main support, the upper end surface of the base 4 is fixed with the azimuth bearing assembly 16 by using screws, and then the azimuth shaft 15 is matched with the azimuth bearing assembly 16; an azimuth end tooth base 34 is fixed inside a base 4 through screws, an azimuth moving gear 32 is fixed with an azimuth shaft 15 through screws, an azimuth fixed gear 33 is fixed with an azimuth end tooth cross 35 through screws, an azimuth translation plate 23 is fixed at the lower end of the azimuth end tooth cross 35 through screws, a B azimuth connecting rod 22 and the azimuth translation plate 23 are connected in a ball-and-cone fit mode, the B azimuth connecting rod 22 is connected with an A azimuth connecting rod 21 through a pin, the A azimuth connecting rod 21 is in pin fit with an azimuth cam screw 20, and the azimuth cam screw 20 is connected with an azimuth cam 6 through a pin.
A connecting rod bearing support 26 and an azimuth cam support 27 are fixed outside the base 4 through screws, a connecting rod bearing 25 is installed inside the connecting rod bearing support 26, the middle section of the A azimuth connecting rod 21 is matched with the connecting rod bearing 25, the azimuth cam 6 rotates to drive the azimuth cam screw 20, the A azimuth connecting rod 21, the B azimuth connecting rod 22 and the azimuth translation plate 23 to move, the azimuth cam 6 and the azimuth cam support 27 are in sliding friction when working, and finally the azimuth normally-closed end tooth locking assembly 24 is locked and loosened on the azimuth shaft 15.
Fixing a T-shaped azimuth frame 2 on the upper end face of an azimuth shaft 15 by screws, fixing a pitch bearing assembly 14 in the T-shaped azimuth frame 2 by screws, matching a pitch shaft 13 with the pitch bearing assembly 14, fixing an L-shaped pitch frame 1 and a counterweight 3 on the right end of the pitch shaft 13 by screws, the pitch end tooth base 28 and the pitch dial 9 are fixed by screws at the left end of the T-shaped orientation frame 2, the pitching moving gear 31 and the pitching shaft 13 are fixed by screws, the pitching fixed gear 30 and the pitching end tooth cross 29 are fixed by screws, the left end of the pitch end tooth cross 29 is fixed with a pitch translation plate 18 by a screw, a pitch cam screw 17 is directly in threaded fit with the pitch translation plate 18, the pitch cam screw 17 is in pin fit with the pitch cam 8, when the pitching cam 8 rotates, sliding friction is generated between the pitching cam 8 and the left end face of the pitching dial 9, and finally the pitching normally-closed end tooth locking assembly 19 is locked and the pitching shaft 13 is unlocked.
The upper end of the L-shaped pitching frame 1 is fixed with a prism transition plate 10 by screws, the upper end of the prism transition plate 10 is fixed with a prism core shaft 11 by screws, and the upper end of the prism core shaft 11 is fixed with a multi-surface prism 12.
The normally closed end tooth locking assembly can increase or decrease the number of teeth according to the actual resolution requirement in practical application so as to meet different application occasions.
Claims (5)
1. The compact double-shaft manual angle reference rotary table comprises a base (4) and is characterized in that an azimuth shaft (15) is mounted at the upper end of the base (4) through an azimuth bearing assembly (16), an azimuth normally-closed end tooth locking assembly (24) connected with the bottom of the azimuth shaft (15) is arranged in the base (4), and the lower end of the azimuth normally-closed end tooth locking assembly (24) is connected with an azimuth cam assembly (36) arranged on the outer side of the base (4) through an azimuth translation plate (23), an azimuth connecting rod (22) B and an azimuth connecting rod (21) A in sequence; a T-shaped azimuth frame (2) is arranged at the upper end of the azimuth shaft (15), a pitching shaft (13) is arranged in the T-shaped azimuth frame (2) through a pitching bearing assembly (14), a pitching normally-closed end tooth locking assembly (19) is arranged at the left end of the pitching shaft (13), a pitching dial (9) connected with the left end of the T-shaped azimuth frame (2) is arranged at the outer side of the pitching normally-closed end tooth locking assembly (19), the left end of the pitching normally closed end tooth locking component (19) is connected with a pitching cam (8) arranged outside the pitching dial (9) through a pitching translation plate (18) and a pitching cam screw (17) in sequence, the right end of the pitching shaft (13) is connected with an L-shaped pitching frame (1) and a balancing weight (3), the upper end of the L-shaped pitching frame (1) is provided with a prism transition plate (10), and the upper end of the prism transition plate (10) is connected with a multi-face prism (12) through a prism mandrel (11).
2. The compact double-shaft manual angle reference rotary table according to claim 1, wherein the azimuth normally-closed end tooth locking assembly (24) comprises an azimuth end tooth base (34) fixedly connected with the base (4), an azimuth end tooth cross (35) is matched in the azimuth end tooth base (34), an azimuth fixed gear (33) is arranged at the upper end of the azimuth end tooth cross (35), an azimuth moving gear (32) fixedly connected with the azimuth shaft (15) is meshed at the upper end of the azimuth fixed gear (33), and the lower end of the azimuth end tooth cross (35) is fixedly connected with the azimuth translation plate (23).
3. The compact double-shaft manual angle reference rotary table according to claim 1, wherein the azimuth cam assembly (36) comprises an azimuth cam bracket (27) fixed on the outer side of the base (4), an azimuth cam screw (20) is arranged in the azimuth cam bracket (27), an azimuth cam (6) is arranged at the upper end of the azimuth cam bracket (27), and the azimuth cam (6) is connected with the A azimuth connecting rod (21) through the azimuth cam screw (20); one side of the azimuth cam bracket (27) is provided with a connecting rod bearing bracket (26), and a connecting rod bearing (25) matched with the A azimuth connecting rod (21) is arranged in the connecting rod bearing bracket (26).
4. The compact type double-shaft manual angle reference rotary table according to claim 1, wherein the pitch normally closed end tooth locking assembly (19) comprises a pitch end tooth base (28) fixed at the left end of the T-shaped azimuth frame (2), a pitch end tooth cross (29) is matched in the pitch end tooth base (28), one side of the pitch end tooth cross (29) is connected with the pitch translation plate (18), the other side of the pitch end tooth cross (29) is fixed with a pitch fixed gear (30), and one side of the pitch fixed gear (30) is meshed with a pitch moving gear (31) connected with the pitch shaft (13).
5. A compact two-axis manual angle reference turret according to claim 1, characterized in that said B azimuth link (22) and azimuth translation plate (23) are connected in a ball and cone configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111273681.5A CN113847859A (en) | 2021-10-29 | 2021-10-29 | Compact double-shaft manual angle reference rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111273681.5A CN113847859A (en) | 2021-10-29 | 2021-10-29 | Compact double-shaft manual angle reference rotary table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113847859A true CN113847859A (en) | 2021-12-28 |
Family
ID=78983617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111273681.5A Pending CN113847859A (en) | 2021-10-29 | 2021-10-29 | Compact double-shaft manual angle reference rotary table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113847859A (en) |
-
2021
- 2021-10-29 CN CN202111273681.5A patent/CN113847859A/en active Pending
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