45 results about "Angular degrees" patented technology

A motion system with a controllable rotation range comprises a base (P), a first component (10), a second component (20) and a third component (30), the first component (10) can rotate around a first rotation shaft (R1) relative to the base (P), the second component (20) can rotate around a second rotation shaft (R2) relative to the first component (10), the third component (30) can rotate around a third rotation shaft (R3) relative to the second component (20), the included angle between the first rotation shaft (R1) and the second rotation shaft (R2) is a1, and a2 is an angle between the first rotation shaft (R1) and the second rotation shaft (R2). The included angle between the second rotating shaft (R2) and the third rotating shaft (R3) is a2, 0 degree < a1 < 90 degrees, 0 degree < a2 < 90 degrees, the third component (30) comprises a first collision area, the base (P) comprises a second collision area, the first collision area can interfere with the second collision area, and the conical angle of a conical area covered by the third rotating shaft (R3) in the moving process is made to be smaller than 4 * a1 and 4 * a2. And the rotating range can be set as required.

Ring wrench structure, comprehensive a main body (10) forming a first receiving section (11) at one end, the main body (10) having a handle section (12) connected to the first receiving section (11), wherein a receiving recess (13) is formed inside the first receiving section (11), the receiving recess being annular and having twelve teeth, the receiving recess (13) forming a first corner (14) being one of the corners between the teeth of the receiving recess (13), and wherein a second receiving section (15) is provided at the other end of the handle section (12). characterized by the fact that Viewed in two dimensions, a first circle center (21) is defined in the center of the receiving recess (13), through which a first line (22) runs, which can also serve as a horizontal line, wherein a second line (23) also runs through the first circle center (21), connecting the first circle center (21) with the first corner (14), wherein a first angle (24) is formed between the second line (23) and the first line (22), wherein a third line (25) is defined at the handle section (12), which runs parallel to the first line (22) and extends in the same direction as the handle section (12), wherein the third line (25) is the center line of the handle section (12), that is, starting from the third line (25) two fourth lines (26) are defined, which run perpendicular to the third line (25) and are symmetrical to the third line (25),where a first distance (27) is defined between the third line (25) and the first line (22); , wherein the value of the first angle (24) is less than 30 degrees and greater than 0 degrees, or the value of the first angle (24) is less than 20 degrees and greater than 2.5 degrees, or the value of the first angle (24) is less than 15 degrees and greater than 5 degrees, or the value of the first angle (24) is 5 degrees, 7.5 degrees, 10 degrees, 12.5 degrees or 15 degrees, wherein the value of the first distance (27) is less than 8 mm and greater than 1 mm, or the value of the first distance (27) is less than 6 mm and greater than 2 mm, or the value of the first distance (27) is less than 5 mm and greater than 3 mm, or the value of the first distance (27) is 4 mm;wherein, when the first receiving section (11) is attached to a screw element (30) for rotation, this screw element (30) has a second circle center (31), wherein this second circle center (31) substantially coincides with the first circle center (21), wherein a fifth line (32) runs horizontally through the second circle center (31), wherein the screw element (30) has a second corner (34) which is one of the corners of the screw element (30), wherein a connecting line (33) is defined between the second circle center (31) and the second corner (34), wherein in the first state the second corner (34) and the second circle center (31) are on the same horizontal line, wherein the connecting line (33) and the fifth line (32) coincide; ; wherein a first obstacle (41) and a second obstacle (42) are present, wherein if the second receiving section (15) can only pivot within the narrow space between the first obstacle (41) and the second obstacle (42), then this narrow space between the first obstacle (41) and the second obstacle (42) corresponds to the spatial state during the working process within a limited pivoting space of the main body (10); in the first state the second receiving section (15) is located near the first obstacle (41) after the first receiving section (11) has been attached to the screw element (30), wherein a horizontal line (50) passes through the first circle center (21), the horizontal line (50) coinciding with the fifth line (32), and a first swivel angle (51) being defined between the horizontal line (50) and the first line (22);wherein the screw element (30) is rotated by pivoting the main body (10), wherein, when the screw element (30) has been rotated about the second circle center point (31) into the second state, there is no further pivot space between the second receiving section (15) and the second obstacle (42), i.e., that the main body (10) cannot rotate the screw element (30) any further, wherein a second pivot angle (52) is defined between the horizontal line (50) and the first line (22), wherein the main body (10) is pivoted about the second circle center point (31) by the first pivot angle (51) and the second pivot angle (52), wherein a first rotation angle (35) is defined between the connecting line (33) and the fifth line (32), wherein the value of the first rotation angle (35) corresponds to the sum of the values ​​of the first pivot angle (51) and the second pivot angle (52); ; wherein, when the screw element (30) cannot be rotated further, the main body (10) is turned, wherein a third pivot angle (53) is defined between the first line (22) and the horizontal line (50), and the first rotation angle (35) is defined between the fifth line (32) and the connecting line (33), which represents the third state, wherein a fourth pivot angle (54) is defined between the horizontal line (50) and the first line (22), wherein the angle between the fifth line (32) and the connecting line (33) increases from the original first rotation angle (35) by a second rotation angle (36), wherein the second rotation angle (36) corresponds to the sum of the third pivot angle (53) and the fourth pivot angle (54), wherein, when the main body (10) is moved between the first obstacle (41) and the second obstacle (42) after turning, the handle section (12) has a pivot space,which corresponds to the sum of the third swivel angle (53) and the fourth swivel angle (54); and , wherein from the first state to the fourth state the screw element (30) is already rotated by a swivel range which corresponds to the sum of the first rotation angle (35) and the second rotation angle (36), wherein the sum of the values ​​of the first rotation angle (35) and the second rotation angle (36) is greater than 30 degrees, and wherein the first receiving section (11) can be turned again to continuously rotate the screw element (30).

The utility model discloses a 360-degree rotary scanning device for a triangular area of a steel rail welding seam, which relates to the technical field of rail performance testing and comprises a base I, a handle, a base II, an adjusting rod, a connecting rod, a belt pulley transmission mechanism and a rotary probe, the second base is connected to the top of the base through the connecting rod, the adjusting rod is rotationally connected with the first base, the rotating probe is rotationally connected with the second base, one end of the adjusting rod is connected with the rotating probe through the belt wheel transmission mechanism, and the other end of the adjusting rod is connected with the rotating probe through the belt wheel transmission mechanism. The adjusting rod is rotated to drive the rotary probe to rotate through the transmission of the belt pulley transmission mechanism; the position and the angle of the rotary probe can be adjusted by 360 degrees through the moving device and the rotary adjusting rod. The angle and the position of the rotary probe can be freely adjusted within the range of 360 degrees so as to meet the detection requirements of different welding seam triangular areas, all-directional rotary scanning is achieved, and the detection precision and reliability are improved.

The embodiment of the application discloses a cam profile curve modeling method. The cam profile curve modeling method comprises the following steps: drawing a base circle with a radius of r1; drawing a law curve, wherein the law curve of the X-axis and the Y-axis is set according to the following formula, and the law curve of the Z-axis is constant and 0; setting the center B of the base circle as the origin of the coordinate system; xt=R*cos(360*t), yt=R*sin(360*t); wherein t is a set increment variable, and the value range is 0 to 1; R is a line segment from the center B of the base circle, and 360*t is the angle through which the line segment R rotates counterclockwise around the center of the base circle; changing the length of the line segment R and obtaining N-stage profile curves after rotating the line segment R counterclockwise around the center of the base circle; and connecting the N-stage profile curves to obtain a cam profile curve; wherein N is a positive integer. The technical scheme of the application can avoid a large number of point data and draw an accurate and ideal cam profile curve.

The invention discloses an aircraft bearing large-convexity tapered roller angle detection method, and relates to the technical field of bearing detection. The objective of the invention is to solve the problem that when the angle of a large-convexity tapered roller is detected in the prior art, the angle can be determined by using a D744 axis instrument to detect the size variation through a fixed distance, and the measurement error is large due to the convexity influence of the tapered roller. Size detection is carried out on the large-convexity tapered rollers at different point positions in sequence through the three D051 axis instruments, and a deviation value is measured through comparison with a standard part; respectively subtracting the midpoint size variation from the variation of the maximum size and the minimum size measured in the step 1 to obtain the actual deviation value of the comparison theoretical calculation standard value from the large end face to the small end face; finally, whether the angle is qualified or not is judged through the deviation value of the two points. The method is suitable for accurately measuring the angle of the large-convexity tapered roller.

The invention relates to the technical field of precision measurement and angle verification, and discloses an angle verification platform, which comprises a main body and two end plates, and is characterized in that the upper surface of the main body is a plane for placing an instrument to be verified; the two end plates are oppositely arranged on the two transverse sides of the main body in parallel and are detachably connected with the main body; each end plate is provided with scales used for marking the position of the end of the main body. When the two transverse ends of the main body are at the same height, the upper surface of the main body is in a horizontal state, namely the inclination angle is zero; when the two transverse ends of the main body are at different heights, the upper surface of the main body is in an inclined state; at the moment, the difference H of the identification values of the two ends of the main body on the scales of the end plates is read, and under the condition that the length L of the main body and the thickness D of the end plates are known, the inclination angle theta of the upper surface of the main body can be calculated through a trigonometric function such as tan theta = H / (L + D). The angle measuring device is simple in structure, convenient to operate and capable of generating stable and accurate known angle values.

The invention discloses a flying saucer type 360-degree omnidirectional driving device which comprises a main shaft (1), a bearing (2), a support seat (3) and a power propelling assembly (7). The power propulsion assembly (7) blows air downwards to generate lift force, can tilt outwards to form a state B by taking a vertical state A as a reference, and further tilts leftwards and rightwards on the basis of the state B to form a superposition state of D, E, G, H and B, and the adjustment angles are respectively 5-30 degrees outwards and 5-50 degrees leftwards and rightwards. The device can be provided with one to two groups of driving units, each group comprises 2-6 sets of power propelling assemblies, and lifting force is converted into horizontal component force through inclined arrangement, so that 360-degree translation and steering around a main shaft are realized; when two groups of driving units are adopted, the two groups of driving units rotate oppositely to counteract torsion, so that the spindle and an external structure are prevented from spinning. The omni-directional vector driving device is simple in structure, flexible to adjust, capable of achieving omni-directional vector driving, suitable for the flying saucer type aircraft and high in maneuverability and flight stability.

The invention relates to a scroll compressor molded line meshing point capturing and volume solving method. The method comprises the following steps that S1, initial parameters of a scroll compressor are obtained; s2, the initial parameters are substituted into a static disc molded line equation of the scroll compressor for calculation, and a static disc molded line of the scroll compressor is obtained; s3, the rotating angle of the movable disc is set to be 0; s4, whether the rotating angle of the movable disc is not larger than 360 degrees or not is judged, and if yes, S5 is executed; if not, ending; s5, static disc and movable disc discrete points of the multiple sets of scroll compressors are obtained; s6, calculating the distance between the movable disc and the static disc according to the discrete points; s7, the meshing point of the movable disc and the static disc is obtained; s8, extracting all discrete points between two adjacent meshing points and generating a closed surface; s9, calculating the area of the closed surface and calculating the volume of each cavity of the scroll compressor; s10, generating a dynamic graph and outputting the volume value of each cavity; and S11, rotating a movable disc of the scroll compressor by a set angle, and executing the step S4. According to the method, the relatively tedious calculation amount in the actual calculation process is reduced, and the calculation error is reduced.

The application provides a motor and a dynamic balance adjusting structure of an impeller and a fan, which comprises a motor with an angular scale and a rotating shaft with an angular scale, the 0-degree position of the motor is aligned with the 0-degree position of the rotating shaft, and the motor end of the motor and the rotating shaft is fixedly connected. The rotating shaft is provided with an angular adjusting fixing part with an angular scale at the impeller end, the 0-degree position of the angular adjusting fixing part is aligned with the 0-degree position of the rotating shaft. The rotating shaft is further provided with an impeller with an angular scale at the impeller end, and the hub of the impeller is clamped with the angular adjusting fixing part. The eccentric angle of the motor and the rotating shaft is installed at an angle of 180 degrees with the eccentric angle of the impeller. The rotating shaft is further provided with a limiting part for limiting the axial displacement of the impeller. The dynamic balance adjusting structure can greatly reduce the vibration of the motor, the rotating shaft and the impeller caused by the dynamic balance error during rotation, and reduce the dynamic balance test in the production and manufacturing process, and improve the production efficiency.

The present invention relates to a rotation angle detection device (1), comprising: a correction target driven gear (32), which is a driven gear meshing with a main drive gear (31); a first sensor (37) configured to generate an electrical signal based on the rotation of the correction target driven gear (32); and an electronic control unit (100) that calculates the driven-side rotation angle based on the electrical signal. The electronic control unit (100) is configured to store a correction angle, which is used to correct the driven-side rotation angle when calculating the driven-side rotation angle. The correction is a predetermined deviation in a predetermined angle range, which is an average value obtained by averaging deviations of an integer quantity corresponding to the same relative rotation angle, thereby serving as a deviation in the angle range of 0 degrees to 360 degrees.

The utility model relates to the technical field of grinding machine parts, in particular to a quick chamfering device for a grinding machine and grinding machine equipment, the quick chamfering device for the grinding machine comprises a supporting seat, a shielding frame and an angle measurer, the supporting seat is provided with a first inclined plane, and the angle between the first inclined plane and the horizontal plane is 45 degrees; the shielding frame is rotationally installed on the supporting base, a second inclined face is arranged on the shielding frame, and a long-strip-shaped through hole allowing a workpiece to be machined to penetrate through is formed between the first inclined face and the second inclined face. The angle measurer is installed on the supporting seat and used for measuring the angle between the second inclined plane and the horizontal plane. According to the fast chamfering device for the grinding machine, chamfers of different degrees can be machined on a workpiece to be machined through the fast chamfering device for the grinding machine, the applicability and universality of the fast chamfering device for the grinding machine are improved, and the chamfers machined through the fast chamfering device for the grinding machine have the advantages of being high in precision, easy to operate, high in efficiency and the like.

The application discloses a kind of redundant drive six degrees of freedom parallel mechanism of dynamic platform continuous 360 degree rotation, including static platform, the slider car group of sliding is arranged in the static platform, the slider car in the slider car group is connected with dynamic platform by support chain, and the dynamic platform is circular.The static platform in the application is composed of two roller coaster track type ring tracks orthogonally, and the slider car can rotate along the ring track of static platform, and the motion cooperation of four linear drive support chains and four slider cars can realize the continuous roll and pitch angle 0-360 degrees of dynamic platform, increase the attitude workspace of mechanism, so as to meet the requirements of fighter aircraft maneuverability simulation.The application controls six degrees of freedom of mechanism by four support chains, reduces the number of support chains, and the structure is simple, and the mechanism adopts redundant drive, one support chain is redundant drive support chain, and the motion characteristics are not affected after removing the support chain, and the redundant drive support chain can improve the carrying capacity of mechanism.

The features of this protractor are as follows (1) and (2): (1) In the front view, the outer periphery of the full circle is marked clockwise with an angle scale ranging from 0° to 360°, and in order to make the 1° markings easier to see and measure, the 5° markings are made longer than the other marks every 10°, and a stepped scale is formed with the 1° markings being the shortest and the 2° markings and subsequent marks successively longer until the 10° markings are the longest. Of the stepped scales, the 2° markings, 4° markings, 6° markings, and 8° markings at each of the 10° markings are filled in with circles larger than the width of the markings to form easy-to-see circular scales. In addition, the numbers "0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350" are displayed for each 10° scale unit, with a light red band behind them to make the numbers easier to read. Furthermore, the top of each half (5°) of each 10° scale unit is filled in with a red inverted triangle to form easily identifiable inverted triangular scale marks. (2) In the rear view, the outer periphery of the full circle is marked counterclockwise with an angle scale ranging from 0° to 360°. To make the 1° markings easier to see and measure, the 5° markings are made longer than the other markings, and a stepped scale is formed in succession, with the 1° markings being the shortest and the 2° markings and subsequent marks successively longer until the 10° markings are the longest. Of the stepped scales, the 2° markings, 4° markings, 6° markings, and 8° markings in each of the 10° markings are filled in with a circle at the top, larger than the width of each marking, to form easy-to-see circular scales. In addition, the numbers "0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350" are displayed for each 10° scale unit, and a light blue band is displayed behind them to make the numbers easier to read.In addition, the top of each half (5°) scale marking for each 10° scale unit is filled in red to form an inverted triangle-shaped scale marking that is easy to identify.

The invention relates to an arbitrary-angle rotation switching method, system and equipment for a 90-degree side milling head and a medium, and relates to the technical field of milling head angle control. The arbitrary angle rotation switching method comprises the following steps: setting an accurate angle value of a rotation angle, endowing each rotation mode with a corresponding mode variable, and judging an instruction rotation angle; processing the instruction rotation angle according to the accurate angle value multiple, determining the mode variable in combination with the current rotation angle, and calculating a to-be-rotated amount; rotating to a theoretical angle according to the to-be-rotated amount, determining a gap angle in combination with the instruction rotation angle, and calculating a compensation angle of a current rotation mode; the to-be-rotated amount is corrected according to the compensation angle until the instruction rotation angle is reached; and through switching of three different rotating modes, the 90-degree side milling head rotating device can be suitable for 90-degree side milling heads with different working accuracies. And by switching to always positive rotation or always negative rotation, a reverse gap generated when the 90-degree head rotates can be effectively solved.

The invention belongs to the technical field of mold manufacturing, and discloses a method for determining the spatial position of a machining plane. Comprising the following steps: establishing an X / Y / Z coordinate system by taking a geometric center of a processing area in a design processing plane as an original point of the coordinate system, making a normal vector line of the design processing plane through the original point and projecting the normal vector line on an XY plane, measuring an included angle between the normal vector line and a Z axis and an included angle between a projection line and an X axis, and rounding respectively, and a normal vector line of the actual machining plane is limited and restored according to the rounded angle, and a plane perpendicular to the normal vector line and passing through the original point is the actual machining plane. According to the method, various auxiliary lines can be automatically made by utilizing drawing software, angles are automatically decomposed, angle values are measured and output, and new machinable planes are automatically rounded and output according to the measured values, so that mold design data are easy to backtrack, machining quality reinspection is facilitated, the tedious degree of later modification is reduced, the design time is shortened, and the production efficiency is improved. The die is suitable for manufacturing various dies with inclined machining planes.

The utility model discloses an automatic angle gradienter, which relates to the field of measuring tools and comprises a gradienter body, the gradienter body comprises an upper shell and a lower shell, the upper shell and the lower shell are fixedly connected through a bolt, a transverse spirit bubble is arranged at the lower left corner of the upper shell, and the lower left corner of the lower shell is provided with a horizontal angle. A vertical spirit bubble is arranged at the lower right corner of the upper shell, and a 45-degree inclined spirit bubble is arranged at the upper right corner of the upper shell; according to the utility model, the transverse spirit bubble, the vertical spirit bubble and the inclined spirit bubble are integrated through the automatic angle gradienter, so that an omnibearing measurement system is constructed, and an object can be synchronously and accurately measured in horizontal, vertical and specific inclined angle directions. According to the utility model, wall perpendicularity calibration, ground flatness detection and special angle installation operation can be easily competent, the application scene is greatly widened, and the measurement requirements in the fields of building, decoration, mechanical installation and the like are met.

The utility model discloses a kind of tool for assisting visual inspection LD eutectic rear angle, including base and fixed sleeve, the base both ends top is uniformly provided with side support, and one rotating fixed hole and arc hole are provided on side support, the fixed sleeve left and right sides are uniformly provided with locating groove, locating groove is connected with connecting shaft, and third threaded hole is provided in locating groove, for the second counterbore connecting screw in the middle of connecting shaft, connecting shaft is fixedly connected with fixed sleeve.This utility model can be rotated by the mode of rotating shaft, so that the material to be inspected produces 1-360 ° rotation in horizontal direction, can be rotated by the mode of arc hole in rotating rod, so that the material to be inspected produces 1-70 ° rotation in vertical direction, so as to assist to complete the visual inspection and measurement of the inclination angle of the material to be inspected, effectively solve the problem of difficult visual inspection, so that the inclination angle after measuring LD eutectic is more convenient.

This invention discloses an auxiliary method for measuring riser angles. The method involves placing a first clamping base of a first angle measuring instrument on a horizontal straight pipe section, with the first measuring module of the first angle measuring instrument positioned above the horizontal straight pipe section. A second clamping base of a second angle measuring instrument is placed on the riser, with the second measuring module of the second angle measuring instrument positioned above the horizontal section of the riser. A steel wire rope is connected between the first and second measuring modules and tightened. The first angle of the first measuring module and the second angle of the second measuring module are read. The first and second angles are subtracted from 180 degrees to obtain a third angle. The third angle is then subtracted from 90 degrees to obtain a fourth angle, which is the actual deviation angle of the riser and is denoted as the fifth angle. This invention provides an auxiliary method for measuring riser angles by connecting a steel wire rope to the measuring modules, measuring the angles, and calculating the deviation angle of the riser.

The invention discloses a five-dimensional adjusting device with a large swing angle, a long stroke and adjustable pitching, and belongs to the technical field of precise adjustment of high-precision optical systems. The device comprises a base assembly, an adjusting assembly and a mirror frame assembly. The lifting device is characterized in that a lifting driving unit of the adjusting assembly is integrally fixed to a deflection driving unit capable of achieving 360-degree rotation, and therefore 0-360-degree large-swing-angle deflection around a vertical shaft and + / -300 mm long-stroke precise lifting along the vertical shaft are cooperatively achieved in a compact structure. The mirror frame assembly is installed through a pitching adjusting unit arranged at the tail end of the cantilever, the pitching adjusting unit is matched with a locking piece through a limiting seat with an arc-shaped waist groove, and large-angle pitching adjustment not lower than + / -15 degrees and reliable locking are achieved. Meanwhile, the base assembly is of a Foma wheel structure, and the overall moving function, the preliminary leveling function and the fine adjustment function are integrated. The problem that an existing five-dimensional adjusting device is limited in adjusting range is solved, and the adjusting efficiency, the error-tolerant rate and the adaptability of an optical system, especially an off-axis optical path system are greatly improved.

This invention discloses a centering method for a geometric parameter measurement system for a rotating specimen. The method involves centering the probe on the test specimen or a turntable using a probe. Taking the probe-to-test-piece centering method as an example: S01, the test specimen is concentrically mounted on the turntable, and the probe is initially installed; S02, during the turntable rotation, the positions of the probe's free end on the test specimen at the initial position, angles φ1 and φ2 are recorded as a, b, and c, respectively; S03, using the probe's rotating shaft as the origin O of the fixed reference system, the corresponding position points A, B, and C of the test specimen are obtained; S04, the center O′ of the circumcircle of the triangle formed by points A, B, and C is obtained; S05, the rotating shaft is adjusted to the position of the center O′; S06, the probe is rotated to adjust the angle until the probe's free end is aligned with the rotation center of the test specimen. This invention enables rapid and accurate probe centering.

The invention relates to a method for positioning an object with an angle scale, which object has an outer side (3.1) running along an arc of a circle, the method having the following steps: fixing the object (3) at a pivotable machine part (4); arranging a first distance meter (1) which is stationary in position; arranging a second distance meter (2) which is stationary in position; determining three first distance values (x1a, x1b, x1c) and three second distance values (z2a, z2b, z2c) at three defined angular positions of the machine part which are different from one another; calculating a first offset value (O1) on the basis of the three first distance values and the associated angular positions and a second offset value (O2) on the basis of the three second distance values and the associated angular positions; translating the object relative to the machine part until the first offset value is determined by the first distance meter and the second offset value is determined by the second distance meter within an admissible deviation.

The oscillation torque remains constant even when the direction of oscillation changes, and once the required oscillation angle position is set, the orientation of the electronic device can be maintained at the set oscillation angle position. [Solution] The bearing member 4 is fixed to the first bracket 3 by an engaging projection 42 formed at a position 180 degrees opposite to the slit 41. When the electronic device is swung by hand and the shaft 2 rotates clockwise, a force acts on one of the arc-shaped portions 44 of the bearing member 4 in a direction that causes it to curl, with the engaging projection 42 as the pivot point. This narrows the width of the slit 41, and increases the force with which the one arc-shaped portion 44 of the bearing member 4 grips the medium-diameter shaft portion 22 of the shaft 2. Also, with the engaging projection 42 as the pivot point, a force acts on the other arc-shaped portion 45 of the bearing member 4 in a direction that widens the width of the slit 41, and decreases the force with which the other arc-shaped portion 45 of the bearing member 4 grips the medium-diameter shaft portion 22 of the shaft 2.

The utility model discloses an ultrasonic cleaning transducer installation structure which comprises an installation bottom plate, a position adjusting assembly is arranged on the installation bottom plate, a positioning seat is installed on the top of the position adjusting assembly, a positioning bearing is installed in the center of the positioning seat, an angle adjusting disc is assembled on the positioning bearing, and the angle adjusting disc is installed in a positioning groove of the positioning seat. A positioning table is arranged on the angle adjusting disc, a mounting cavity is formed in the positioning table, a limiting boss is arranged in the mounting cavity, a fixing shell is arranged at the top of the limiting boss in a matched mode, a transducer body is tightly pressed at the bottom of the fixing shell, an annular clamping groove is formed in the mounting cavity, a plurality of limiting assemblies are arranged in the annular clamping groove, and locking mechanisms are further arranged at the four corners of the positioning base. The device has the advantages that rapid positioning and clamping can be carried out, operation is simple, meanwhile, X-axis and Y-axis movement adjustment can be carried out, meanwhile, 360-degree rotation and emission angle adjustment can be carried out, and installation is convenient and fast.

The invention relates to the technical field of welding equipment, in particular to automatic welding machining equipment and method for an automobile. Comprising a machine table, a driving sliding table, a welding mechanism and an angle adjusting mechanism, the angle adjusting mechanism comprises a positioning plate, a positioning frame, a right rotating shaft, a right clamp disc, a first gear, a mounting base, a transmission shaft, a second gear, a servo motor, a left clamp disc and a supporting device, and after one datum plane of a workpiece is welded through the welding mechanism, the servo motor can be controlled to act to drive the transmission shaft to rotate; after the second gear drives the first gear to rotate, the right rotating shaft rotates, the part can rotate to adjust the welding angle, after the angle of the part is adjusted, the welding mechanism is controlled again to act to conduct welding, multi-angle face welding machining of the part is achieved, and the part can be adjusted within the angle range of 360 degrees; therefore, the problems that existing welding equipment can only conduct multi-point-position welding of a single plane, and the welding range is greatly limited are solved.

The invention discloses a + / -45-degree layering and fiber placement path planning method for the side wall of a tapered cylindrical shell, and belongs to the technical field of composite material manufacturing. The method comprises the following steps: discretizing the side wall of a tapered cylindrical shell into a continuous plane unit, projecting the central axis of the tapered cylindrical shell onto the plane unit to form a projection line, and generating a cross-plane continuous laying path forming an included angle of + / -45 degrees with the projection line on the plane unit; secondly, based on the minimum turning radius of the cylindrical shell, transition areas are arranged on the two sides of the junction edge of every two adjacent plane units, and in the transition areas, the laying paths are optimized into transition curves, so that the minimum angular deviation is formed on the basis that the laying quality of the fiber laying paths is guaranteed; and finally, densifying the laying path to generate a final fiber laying path. The problems of wrinkles and bridging defects caused by sudden change of the path direction of the tapered cylindrical shell in the automatic fiber placement process are effectively solved, the laying quality is guaranteed, meanwhile, the laying angle deviation is minimized, and the laying layer quality and the mechanical property of a product are remarkably improved.

The features of this protractor are as follows (1) to (4): (1) In the front view, the angle scale consisting of 0° to 180° clockwise on the outer periphery of a semicircle is marked in 10° increments, but to make the 1° increments easier to see and measure, the 5° increments are made longer than the other increments, and a stepped scale is formed continuously, with the 1° increments being the shortest and the 2° increments and subsequent increments being successively longer until the 10° increments is the longest. Of the stepped increments, the 2°, 4°, 6°, and 8° increments of each 10° increment are marked in a circle at the top, wider than the width of each increment, to form easy-to-see circular scales. Additionally, the numbers "0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180" are displayed for each 10° scale increment, with a light red band behind them to make the numbers easier to read. Furthermore, multiple inverted triangle-shaped markings are formed at the top of each half (5°) of the 10° scale increment, each filled with an inverted triangle for easy identification. (2) The lower right portion of the front view is formed as a rectangular bulge that bulges slightly downward from the right radius of the semicircular product. When measuring the angle of the object being measured, the left end of the bulge can be used as the base point. (3) In the rear view, the angle scale consisting of 0° to 180° is marked counterclockwise on the outer periphery of the semicircle, and in order to make the 1° markings easier to see and measure, the 5° markings are made longer than the other markings, and a stepped scale is formed in succession, with the 1° markings being the shortest and the 2° markings and beyond being successively longer until the 10° markings are the longest. Of the stepped scales, the 2° markings, 4° markings, 6° markings, and 8° markings in each of the 10° markings are each marked in a circular shape that is wider than the width of the markings, forming easy-to-see circular scales. In addition, the numbers "0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180" are displayed for each 10° scale unit, with a light blue band behind them to make the numbers easier to read. Furthermore, the tops of each half (5°) of each 10° scale unit are filled with an inverted triangle to form multiple easily identifiable inverted triangular scale marks.(4) The lower left part in the rear view is formed as a rectangular bulge that bulges slightly downward from the left radial part of the semicircular object, and when measuring the angle of the object to be measured, the left end position of the bulge can be used as the base point.

This invention relates to the field of precision angle measurement and error correction technology, specifically to a 360° precision angle correction device and method based on autocollimation tracking compensation. The device includes a mounting and fixing assembly for mounting and fixing the object to be corrected; a rotary correction assembly whose main housing is connected to the rotation output end of the object to be corrected; a reflector connected to the rotation output end of the rotary correction assembly; an autocollimator, configured in conjunction with the reflector, for acquiring the deflection angle value of the reflector; and a host computer connected to the object to be corrected, the rotary correction assembly, and the autocollimator. The rotary correction assembly includes a reference encoder. This device, through the rotary correction assembly with its built-in high-precision reference encoder, provides real-time reverse compensation for the motion angle of the object to be corrected, ensuring that the reflector mounted on the rotary correction assembly remains aligned with the autocollimator in space, indirectly achieving precise measurement and correction data generation of the angle error within a 360° full-circle range of the object to be corrected.