CN113280757B - Angle measuring mechanism - Google Patents
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- CN113280757B CN113280757B CN202110818459.2A CN202110818459A CN113280757B CN 113280757 B CN113280757 B CN 113280757B CN 202110818459 A CN202110818459 A CN 202110818459A CN 113280757 B CN113280757 B CN 113280757B
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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Abstract
The invention relates to an angle measuring mechanism which comprises an angle measuring light pipe, a connecting rod group, a rotary hand wheel, an angle measuring seat, a code disc, a water bubble seat, a fine adjustment hand wheel, a releasing locking hand wheel, a leveling component and an insertion rod, wherein the angle measuring seat is of a box structure, a rotary shaft system is arranged in the angle measuring seat, the rotary shaft system comprises a rotary seat, a steel ball spacer ring, a rotary shaft and a rotary seat pressing ring, the angle measuring light pipe, the connecting rod group, the rotary hand wheel, the rotary shaft and the code disc are sequentially connected, the water bubble seat is arranged on the upper surface of the angle measuring seat, the fine adjustment hand wheel and the releasing locking hand wheel are arranged on the side surface of the angle measuring seat, the leveling component is connected with the lower surface of the angle measuring seat through screws, and the insertion rod is arranged at the bottom end of the leveling component. The invention controls the angle measuring light tube to optically align with the tested equipment through the high-precision large-stroke rotary mechanism, the tested equipment can measure the angle at any angle, the fixed angle limit of a zenith instrument and a universal goniometer is avoided, and the whole structure is lighter and more portable, the operation is simple and the implementation is easy.
Description
Technical Field
The invention belongs to the technical field of optical detection equipment, and particularly relates to a continuous large-range high-precision angle measuring mechanism.
Background
The angle measuring mechanism is mainly used for detecting the performance of azimuth angles, elevation angles, vertical deviation and the like of optical and photoelectric equipment. The current azimuth angle measuring technology is mature, and the high and low angles have the defects of continuous large-range angle detection. In a commonly used angle measuring mechanism, a fixed zenith instrument and a universal angle measuring instrument are taken as main instruments, a plurality of angle measuring light pipes are installed in a vertical plane of a horizontal angle measuring light pipe, the installation position angle value of each angle measuring light pipe is accurately calibrated, the angle which can be measured is the calibrated installation position angle value of each angle measuring light pipe, and the optical schematic diagram of the angle measuring mechanism is shown in figure 1A. When measuring the high and low angles, the tested device firstly aims at the cross division of the angle measuring light pipe in the horizontal position, then the tested device is rotated to respectively aim at the cross divisions of other angle measuring light pipes, the angle value on the corresponding graduated disc on the tested device is read, and the absolute value of the difference between the angle value of the angle measuring light pipe and the reading value of the graduated disc is the high and low angle measuring precision.
In the existing angle measuring mechanism, the number and the angle of parallel light pipes determine the angle measuring range, and the large-range angle measurement needs more parallel light pipes to be arranged around a horizontal angle measuring light pipe, so that the structure is more complicated; the installation angle value of the angle measuring light pipe around the horizontal light pipe is fixed, the angle measuring angle of the tested equipment can only be the installation angle of the angle measuring light pipe, the angle measuring angle is fixed, and the angle measuring cannot be carried out continuously; the integral structure is complex, the angle measurement range is small, the angle measurement precision is low, the angle measurement angle is fixed, and continuous angle measurement cannot be performed due to various reasons.
Disclosure of Invention
The technical problem to be solved is as follows: aiming at the technical problems, the invention provides an angle measuring mechanism which effectively solves the defects of complex structure, fixed angle measurement angle, small angle measurement range, low precision, incapability of continuously measuring angles and the like of the conventional angle measuring mechanism.
The technical scheme is as follows: the utility model provides an angle measuring mechanism, includes angle measuring fluorescent lamp, connecting rod group, gyration hand wheel, angle measuring seat, code wheel, bubble seat, fine setting hand wheel, releases locking hand wheel, leveling subassembly and inserted bar, the angle measuring seat is the box structure, and is equipped with the pivot system in the angle measuring seat, the pivot system includes gyration seat, steel ball space ring, revolving axle and gyration seat clamping ring, angle measuring fluorescent lamp, connecting rod group, gyration hand wheel, revolving axle, code wheel connect gradually, the upper surface at the angle measuring seat is established to the bubble seat, fine setting hand wheel and releasing locking hand wheel are installed on the side of angle measuring seat, the leveling subassembly passes through the screw connection with the lower surface of angle measuring seat, the bottom at the leveling subassembly is installed to the inserted bar.
Preferably, the linkage includes first dead lever, first connecting piece, intermediate lever, second connecting piece, second dead lever and balancing weight, first dead lever one end is connected with the goniometer fluorescent tube, the other end of first dead lever, first connecting piece, intermediate lever, second connecting piece, the one end of second dead lever connect gradually, the balancing weight sets up the other end at the second dead lever.
Furthermore, a sleeve is arranged on the outer wall of the tube body of the angle measuring light tube, and the sleeve is connected with one end of a first fixing rod of the connecting rod group through a pin.
Preferably, the left end face and the right end face of the rotary seat are abutted by screws penetrating through the angle measuring seat, the rotary seat pressing ring is in threaded connection with the rotary seat and compresses the steel ball spacing ring, and the steel balls are arranged in the steel ball spacing ring and are in contact with the end face of the rotary shaft.
Preferably, the left end of the rotating shaft is connected with the second fixed rod of the connecting rod group through a pin, the left shaft rod of the rotating shaft is provided with an installation seat and is connected through threads, the rotating hand wheel is connected with the installation seat through a screw, the right shaft rod of the rotating shaft is provided with a boss and threads, the threads are provided with a rotating shaft pressing ring meshed with the threads, the right end of the rotating shaft is connected with the code disc through a locking ring, and the locking ring tightly presses the right shaft rod of the rotating shaft through a screw.
Preferably, the releasing locking hand wheel and the fine adjusting hand wheel respectively realize the adjustment of a rotating shaft of the angle measuring mechanism through a coarse adjusting system and a fine adjusting system, the coarse adjusting system and the fine adjusting system comprise a coupling, a fork joint, a fork frame, a fastening block, a fine adjusting screw rod, a limiting ring, a buffering device and an insert, the fork frame comprises a first fork, a second fork and a shaft hole, the first fork is provided with a threaded groove, the second fork is provided with a round hole, the left side and the right side are respectively provided with a pin hole, the insert consists of a round pipe and a limiting block connected with one end of the round pipe, the limiting block is provided with a left plane and a right plane which are parallel to each other, the round pipe is provided with a hole matched with the pin hole, the round pipe of the insert is inserted into the round hole of the second fork and is fixed through a pin, the right shaft of the rotating shaft passes through the shaft hole, one side of the fork frame is attached to a boss on the rotating shaft, the other side of the fork joint is tightly pressed by a rotating shaft pressing ring, the fork joint comprises a fork head and a fork handle, the releasing and locking hand wheel is fixedly connected with the fork head of the fork joint through a coupling, the fork handle of the fork joint is provided with threads and is meshed with the threads in the thread groove, the releasing and locking hand wheel is adjusted to release and extrude a fastening block through the fork handle of the fork joint, and the fastening block releases and locks the rotating shaft; the fine tuning device comprises a fine tuning hand wheel, a fine tuning screw rod, a buffer device, a straight pipe, a spring and a pipe seat, wherein one end of the fine tuning screw rod is connected with the fine tuning hand wheel, the other end of the fine tuning screw rod is abutted to the left plane of the insert, a limit ring is arranged on the fine tuning screw rod, the buffer device comprises the straight pipe, the spring and the pipe seat, one end of the straight pipe is sealed in a conical shape, the conical end of the straight pipe is abutted to the right plane of the insert, one end of the spring is arranged in the straight pipe, the other end of the spring is arranged in the pipe body of the pipe seat, and the pipe seat is connected with the inner wall of the angle measuring seat through a screw.
Preferably, the code wheel is an absolute encoder.
Preferably, a dustproof pad is arranged between the rotating shaft rod and two side walls of the angle measuring seat, and the dustproof pad is made of felt materials.
Preferably, the angle measuring mechanism is mounted on the lifting platform with the groove through an inserted link.
Has the advantages that: the angle measuring mechanism can be matched with a horizontal rotary table to measure the azimuth angle, and the horizontal angle measuring range of an angle measuring light tube is 60-00 due to the unique rotary structure when the height angle is measured without considering the structure and the length limit of a cable; the rotary shaft system is designed with a similar bearing structure, the rotary abrasion is small, the rotary seat and the angle measuring seat are tightly pressed by screws, the extremely low end jump and eccentricity of the end surface of the rotary shaft are ensured, the rotary motion is more stable, the rotary shaft system is formed by adopting a plurality of processes for precise processing, the matching precision is high, the bearing capacity is large, and the service life is long; the angle measuring light tube is coaxially and directly connected with the rotating shaft, the transmission is synchronous, no eccentric disturbance exists, the rotating shaft can control the angle measuring light tube to rotate at any angle in the forward direction and the reverse direction, no idle rotation exists, the stroke difference in the measuring process is ensured, and the measuring precision is greatly improved.
Drawings
Fig. 1A is an optical schematic diagram of a conventional goniometer.
FIG. 1B is an optical schematic diagram of the goniometric mechanism of the present invention.
Fig. 2 is a schematic structural view of the angle measuring mechanism of the present invention.
Fig. 3 is a top view of the goniometric mechanism of the present invention.
Fig. 4 is a bottom view of the goniometric mechanism of the present invention.
Fig. 5 is a schematic view of a rotor system according to the present invention.
FIG. 6 is a schematic diagram of a coarse and fine tuning system according to the present invention.
Fig. 7 is a schematic view showing the structure of a rotating shaft of the present invention.
Number in the figure: 1. an angle measuring light pipe, 2, a leveling component, 3, a connecting rod group, 3.1, a first fixing rod, 3.2, a first connecting piece, 3.3, a middle rod, 3.4, a second connecting piece, 3.5, a second fixing rod, 3.6, a balancing weight, 4, an angle measuring seat, 5, a coded disc, 6, an inserting rod, 7, a fine adjustment hand wheel, 8, a release locking hand wheel, 9, a blister seat, 10, a rotary hand wheel, 11, a rotary shaft, 12, a steel ball, 13, a rotary seat, 14, a steel ball spacing ring, 15, a rotary seat pressing ring, 16, a fork frame, 16.1, a first branch, 16.2, a second branch, 16.3, a shaft hole, 17, a fastening block, 18, a fork joint, 18.1, a fork head, 18.2, a fork handle, 19, a coupling, 20, a fine adjustment screw rod, 21, a limiting ring, 22, a buffer device, 22.1, a straight pipe, 22.2, a spring, a pipe seat, 23, a pressing ring and an insert.
Detailed Description
The invention is described in detail below with reference to the following figures and specific examples:
example 1
As shown in FIG. 1B, the optical principle of the angle measuring mechanism of the present invention is that an angle measuring light pipe capable of rotating at any angle replaces the existing plurality of fixed angle measuring light pipes, and the angle rotation is continuous. As shown in fig. 2 to 7, the angle measuring mechanism of the present invention is characterized in that: comprises an angle measuring light pipe 1, a connecting rod group 3, a rotary hand wheel 10, an angle measuring seat 4, a coded disc 5, a blister seat 9, a fine adjustment hand wheel 7, an unlocking and locking hand wheel 8, a leveling component 2 and an inserted link 6, wherein the angle measuring seat 4 is of a box body structure, and a rotary shaft system is arranged in the angle measuring seat 4, the rotary shaft system comprises a rotary seat 13, steel balls 12, a steel ball spacing ring 14, a rotary shaft 11 and a rotary seat pressing ring 15, the angle measuring light pipe 1, the connecting rod group 3, the rotary hand wheel 10, the rotary shaft 11 and the code wheel 5 are connected in sequence, and the transmission is synchronous, the bubble seat 9 is arranged on the upper surface of the angle measuring seat 4, the fine adjustment hand wheel 7 and the release locking hand wheel 8 are arranged on the side surface of the angle measuring seat 4, the leveling component 2 is connected with the lower surface of the angle measuring seat 4 through screws, the angle measuring mechanism is in a horizontal state through the leveling component 2, and the inserted rod 6 is installed at the bottom end of the leveling component 2.
The connecting rod group 3 comprises a first fixing rod 3.1, a first connecting piece 3.2, an intermediate rod 3.3, a second connecting piece 3.4, a second fixing rod 3.5 and a balancing weight 3.6, one end of the first fixing rod 3.1 is connected with the goniometer 1, the other end of the first fixing rod 3.1, the first connecting piece 3.2, the intermediate rod 3.3, the second connecting piece 3.4 and one end of the second fixing rod 3.5 are sequentially connected, and the balancing weight 3.6 is arranged at the other end of the second fixing rod 3.5.
The outer wall of the tube body of the angle measuring light tube 1 is provided with a sleeve, and the sleeve is connected with one end of a first fixing rod 3.1 of the connecting rod group 3 through a pin.
The left end face and the right end face of the rotary seat 13 are abutted through screws penetrating through the angle measuring seat 4, the rotary seat pressing ring 15 is in threaded connection with the rotary seat 13 and presses the steel ball spacing ring 14 tightly, the steel balls 12 are arranged in the steel ball spacing ring 14 and are in contact with the end face of the rotary shaft 11, extremely low end jump and eccentricity of the end face of the rotary shaft 11 are guaranteed, the contact area of the rotary shaft 11 and the steel balls 12 is small during rotary motion, generated abrasion is small, and rotary motion is stable.
The left end of the rotating shaft 11 is connected with a second fixing rod 3.5 of the connecting rod group 3 through a pin, a mounting seat is arranged on a left shaft lever of the rotating shaft 11 and is connected with the left shaft lever through threads, the rotating hand wheel 10 is connected with the mounting seat through a screw, a boss and threads are arranged on a right shaft lever of the rotating shaft 11, the threads are provided with a rotating shaft pressing ring 24 meshed with the threads, the right end of the rotating shaft 11 is connected with the coded disc 5 through a locking ring, and the locking ring tightly presses the right shaft lever of the rotating shaft 11 through a screw.
The disengaging locking hand wheel 8 and the fine adjusting hand wheel 7 respectively realize the adjustment of the rotating shaft 11 of the angle measuring mechanism through a coarse adjusting system and a fine adjusting system, the coarse adjusting system and the fine adjusting system comprise a coupling 19, a fork joint 18, a fork frame 16, a fastening block 17, a fine adjusting screw 20, a limiting ring 21, a buffering device 22 and an insert 23, the fork frame 16 comprises a first fork 16.1, a second fork 16.2 and a shaft hole 16.3, the first fork 16.1 is provided with a threaded groove, the second fork 16.2 is provided with a round hole, the left side and the right side are respectively provided with a pin hole, the insert 23 consists of a round pipe and a limiting block connected with one end of the round pipe, the limiting block is provided with a left plane and a right plane which are parallel to each other, the round pipe is provided with a hole matched with the pin hole, the round pipe of the insert 23 is inserted into the round hole of the second fork 16.2 and fixed through a pin, the right shaft lever of the rotating shaft 11 passes through the shaft hole 16.3, one side of the forked frame 16 is attached to a boss on the rotating shaft 11, the other side of the forked frame is tightly pressed through a rotating shaft pressing ring 24, the fork joint 18 comprises a fork head 18.1 and a fork handle 18.2, the release locking hand wheel 8 is fixedly connected with the fork head 18.1 of the fork joint 18 through a coupling 19, the fork handle 18.2 of the fork joint 18 is provided with threads and is meshed with the threads in a threaded groove, the release locking hand wheel 8 is adjusted to release and press the fastening block 17 through the fork handle 18.2 of the fork joint 18, and the fastening block 17 releases and locks the rotating shaft 11; fine setting screw 20 one end is connected with fine setting hand wheel 7, and the other end supports on the left plane of mold insert 23, and sets up spacing collar 21 on the fine setting screw 20, buffer 22 includes that one end is sealed straight tube 22.1, spring 22.2 and tube socket 22.3 of toper, the conical end of straight tube 22.1 supports on the right plane of mold insert 23, spring 22.2 one end is established in straight tube 22.1, and the other end is established in tube socket 22.3's body, tube socket 22.3 passes through the screwed connection with the interior wall of angle finding seat 4.
The operation process of rough adjustment is that the releasing locking hand wheel 8 is in a releasing state, at the moment, the fastening block 17 in the forked frame 16 is not contacted with the rotating shaft 11, the rotating hand wheel 10 at the top end of the rotating shaft 11 can be adjusted to realize the forward and reverse rotation of the rotating shaft 11, and therefore the connecting rod group 3 is driven to enable the objective lens of the angle measuring light pipe 1 to basically align to the position of the objective lens of the tested device; when the rotating hand wheel 10 does not need to be adjusted, the locking and unlocking hand wheel 8 needs to be locked and unlocked, and the fork joint 18 connected to the coupling 19 extrudes the fastening block 17 at the moment, so that the fastening block 17 locks the rotating shaft 11.
The fine adjustment operation process is that the fine adjustment hand wheel 7 is rotated, the fine adjustment screw 20 on the fine adjustment hand wheel 7 translates to drive the forked frame 16 to slightly rotate, the rotating shaft 11 is locked by the fastening block 17 in the forked frame 16, the system formed by the forked frame 16 and the rotating shaft 11 can only rotate within the allowable range of the coupling 19, the system of the forked frame 16 and the rotating shaft 11 has minimum backlash under the action of the elastic force of the spring 22.2 in the buffer device 22 in the process, the stroke difference in the measurement process is ensured, and the fine adjustment screw 20 is provided with the limiting ring 21 to ensure the safety of the adjustment process.
The coded disc 5 is an absolute encoder, and the coded disc 5 converts the angular displacement collected by the rotation of the angular measurement light pipe 1 into an electric signal to realize angular measurement reading.
And a dustproof pad is arranged between the shaft lever of the rotating shaft 11 and two side walls of the angle measuring seat 4, and the dustproof pad is preferably made of felt.
The angle measuring mechanism is arranged on the lifting platform with the groove through the inserted rod 6, and the height of the angle measuring mechanism is adjusted.
Azimuth angle measurement: placing the tested equipment on a horizontal rotary table, adjusting the bubble in the tested equipment and a bubble seat 9 of an angle measuring mechanism to be centered and the optical center to be equal in height, accurately aligning the tested equipment with the cross division center of an angle measuring light pipe 1, then rotating the horizontal rotary table, adjusting the angle measuring light pipe 1 to an angle value to be detected within the range of 60-00 by using a rotary hand wheel 10 and a fine adjustment hand wheel, locking the angle measuring light pipe 1, and recording the angle value of the angle measuring light pipe 1; the tested device horizontally rotates and is accurately aligned to the cross division center of the angle measuring light pipe 1, and the difference value between the horizontal rotation angle value of the tested device and the rotation angle of the angle measuring light pipe 1 is the azimuth angle measuring precision.
The horizontal operation stroke of the angle measuring light pipe 1 is the azimuth angle measuring range.
Example 2
Measuring the elevation angle: fixing the tested equipment on a lifting platform, adjusting the bubble in the tested equipment and the bubble seat 9 of the angle measuring mechanism to be centered and the optical center to be equal in height, accurately aligning the tested equipment with the cross division center of the angle measuring light tube 1, then rotating to the zero-degree position marked by the code wheel 5 for recording, then adjusting the angle measuring light tube 1 to the angle value to be measured by using the rotary hand wheel 10 and the fine adjustment hand wheel 7, locking the angle measuring light tube 1, and recording the angle value of the angle measuring light tube 1; the tested device rotates in a pitching way and is accurately aligned to the cross division center of the angle measuring light pipe 1, and the difference value between the angle value of the pitching rotation of the tested device and the rotation angle of the angle measuring light pipe 1 is the high and low angle measuring accuracy.
The pitching operation stroke of the angle measuring light pipe 1 is the height angle measuring range.
Example 3
Vertical deviation: fixing the tested equipment on a lifting table, adjusting the bubble in the tested equipment and the bubble seat 9 of the angle measuring mechanism to be centered, and adjusting the optical center to be equal in height, wherein the tested equipment is accurately aligned with the cross division center of the angle measuring light tube 1; the angle measuring light pipe 1 is adjusted to the angle value of the tested equipment needing to detect the vertical deviation by using a rotary hand wheel 10 and a fine adjustment hand wheel 7, the angle measuring light pipe 1 is locked, and the tested equipment rotates the same angle value in the same direction; and measuring the angle value of the vertical division of the tested equipment deviating from the center of the angle measuring light pipe 1 by using the horizontal division of the angle measuring light pipe 1 division plate, namely the vertical deviation value.
Example 4
The data for comparing the technical indexes of the angle measuring mechanism of the invention measured by the methods of the embodiments 1 to 3 with the technical indexes of the existing angle measuring instrument are detailed in the following table 1:
TABLE 1 comparison of technical indexes of different types of goniometers
Compared with the existing goniometer, the goniometer of the goniometer mechanism can be arranged at any position, and any angle is selected for measurement, so that continuous angle measurement can be realized, and the measuring angle range is large.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. An angle measuring mechanism, its characterized in that: comprises an angle measuring light pipe (1), a connecting rod group (3), a rotary hand wheel (10), an angle measuring seat (4), a code disc (5), a blister seat (9), a fine adjustment hand wheel (7), a releasing locking hand wheel (8), a leveling component (2) and an insertion rod (6), wherein the connecting rod group (3) comprises a first fixed rod (3.1), a first connecting piece (3.2), a middle rod (3.3), a second connecting piece (3.4), a second fixed rod (3.5) and a balancing weight (3.6), one end of the first fixed rod (3.1) is connected with the angle measuring light pipe (1), the other end of the first fixed rod (3.1), the first connecting piece (3.2), the middle rod (3.3), the second connecting piece (3.4) and one end of the second fixed rod (3.5) are sequentially connected, the balancing weight (3.6) is arranged at the other end of the second fixed rod (3.5), the angle measuring seat (4) is of a box body structure, and a rotary shaft system is arranged in the angle measuring seat (4), the rotary shaft system comprises a rotary seat (13), steel balls (12), a steel ball spacing ring (14), a rotary shaft (11) and a rotary seat pressing ring (15), an angle measuring light tube (1), a connecting rod group (3), a rotary hand wheel (10), the rotary shaft (11) and a coded disc (5) are sequentially connected, a water bubble seat (9) is arranged on the upper surface of the angle measuring seat (4), a fine adjustment hand wheel (7) and an unlocking hand wheel (8) are arranged on the side surface of the angle measuring seat (4), a leveling component (2) is connected with the lower surface of the angle measuring seat (4) through screws, and an inserted rod (6) is arranged at the bottom end of the leveling component (2).
2. An angle measuring mechanism according to claim 1, wherein: the outer wall of the tube body of the angle measuring light tube (1) is provided with a sleeve, and the sleeve is connected with one end of a first fixing rod (3.1) of the connecting rod group (3) through a pin.
3. An angle measuring mechanism according to claim 1, wherein: the left end face and the right end face of the rotary seat (13) are abutted through screws penetrating through the angle measuring seat (4), the rotary seat pressing ring (15) is in threaded connection with the rotary seat (13) and tightly presses the steel ball spacing ring (14), and the steel ball (12) is arranged in the steel ball spacing ring (14) and is in end face contact with the rotary shaft (11).
4. An angle measuring mechanism according to claim 1, wherein: the left end of the rotating shaft (11) is connected with a second fixing rod (3.5) of the connecting rod group (3) through a pin, an installation seat is arranged on a left shaft rod of the rotating shaft (11) and is connected with the left shaft rod through threads, the rotating hand wheel (10) is connected with the installation seat through screws, a boss and threads are arranged on a right shaft rod of the rotating shaft (11), a rotating shaft pressing ring (24) meshed with the threads is arranged on the threads, the right end of the rotating shaft (11) is connected with the coded disc (5) through a locking ring, and the locking ring presses the right shaft rod of the rotating shaft (11) through the screws.
5. An angle measuring mechanism according to claim 1, wherein: the angle measuring mechanism is characterized in that the releasing locking hand wheel (8) and the fine adjusting hand wheel (7) respectively realize the adjustment of a rotating shaft (11) of the angle measuring mechanism through a coarse adjusting system and a fine adjusting system, the coarse adjusting system and the fine adjusting system comprise a coupling (19), a fork joint (18), a fork-shaped frame (16), a fastening block (17), a fine adjusting screw rod (20), a limiting ring (21), a buffer device (22) and an insert (23), the fork-shaped frame (16) comprises a first fork (16.1), a second fork (16.2) and a shaft hole (16.3), the first fork (16.1) is provided with a thread groove, the second fork (16.2) is provided with a round hole, the left side and the right side are respectively provided with a pin hole, the insert (23) consists of a round pipe and a limiting block connected with one end of the round pipe, the limiting block is provided with a left plane and a right plane which are parallel to each other, the round pipe is provided with a hole matched with the pin hole, the round pipe of the insert (23) is inserted into the round hole of the second fork (16.2), the right shaft rod of the rotating shaft (11) penetrates through the shaft hole (16.3), one side of the forked frame (16) is attached to a boss on the rotating shaft (11), the other side of the forked frame is tightly pressed through a rotating shaft pressing ring (24), the fork joint (18) comprises a fork head (18.1) and a fork handle (18.2), the releasing and locking hand wheel (8) is fixedly connected with the fork head (18.1) of the fork joint (18) through a coupling (19), the fork handle (18.2) of the fork joint (18) is provided with threads and meshed with the threads in a thread groove, the adjusting releasing and locking hand wheel (8) releases and extrudes the locking block (17) through the fork handle (18.2) of the fork joint (18), and the locking block (17) releases and locks the rotating shaft (11); fine setting screw rod (20) one end is connected with fine setting hand wheel (7), and the other end supports on the left plane of mold insert (23), and sets up spacing collar (21) on fine setting screw rod (20), buffer (22) include that one end is sealed straight tube (22.1), spring (22.2) and tube socket (22.3) of toper, the conical end of straight tube (22.1) supports on the right plane of mold insert (23), spring (22.2) one end is established in straight tube (22.1), and the other end is established in the body of tube socket (22.3), tube socket (22.3) pass through the screw connection with survey angle base (4) inner wall.
6. An angle measuring mechanism according to claim 1, wherein: the coded disc (5) is an absolute encoder.
7. An angle measuring mechanism according to claim 1, wherein: and a dustproof pad is arranged between the shaft lever of the rotating shaft (11) and two side walls of the angle measuring seat (4), and is made of felt.
8. An angle measuring mechanism according to claim 1, wherein: the angle measuring mechanism is arranged on the lifting platform with the groove through an inserted bar (6).
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| CN202110818459.2A CN113280757B (en) | 2021-07-20 | 2021-07-20 | Angle measuring mechanism |
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| CN202110818459.2A CN113280757B (en) | 2021-07-20 | 2021-07-20 | Angle measuring mechanism |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1486783A1 (en) * | 1986-08-11 | 1989-06-15 | Aleksandr Yu Vakhlakov | Automated goniometer for measuring angles of polyhedral prisms |
| CN103868497A (en) * | 2012-12-11 | 2014-06-18 | 上海昌吉地质仪器有限公司 | High-precision angle measuring device |
| CN207215044U (en) * | 2017-08-20 | 2018-04-10 | 昆明荣者光电科技发展有限公司 | A kind of eyeglass angular instrument |
| JP2018059733A (en) * | 2016-10-03 | 2018-04-12 | 国立研究開発法人産業技術総合研究所 | Three-dimentional shape measurement system |
-
2021
- 2021-07-20 CN CN202110818459.2A patent/CN113280757B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1486783A1 (en) * | 1986-08-11 | 1989-06-15 | Aleksandr Yu Vakhlakov | Automated goniometer for measuring angles of polyhedral prisms |
| CN103868497A (en) * | 2012-12-11 | 2014-06-18 | 上海昌吉地质仪器有限公司 | High-precision angle measuring device |
| JP2018059733A (en) * | 2016-10-03 | 2018-04-12 | 国立研究開発法人産業技術総合研究所 | Three-dimentional shape measurement system |
| CN207215044U (en) * | 2017-08-20 | 2018-04-10 | 昆明荣者光电科技发展有限公司 | A kind of eyeglass angular instrument |
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