14 results about "Circumferential Profile" patented technology

The invention discloses a circumferential contour prediction method based on cutting force and deformation field space-time correlation, and relates to the field of aerospace, and the method comprises the following steps: 1, carrying out the spatial discretization of a circumferential contour region of a target workpiece; step 2, establishing a lightweight structure stiffness matrix; 3, constructing an elastic mechanism model and solving delta-F mapping; 4, introducing the time sequence correlation of the cutting load into the elastic mechanism model; step 5, constructing a Boolean relationship between the tool path and the workpiece envelope; step 6, fusing actual measurement process signals, and performing state correction; step 7, iterating the elastic model again by using the corrected load; and step 8, reconstructing full-field deformation based on spatial correlation. According to the method, online prediction of the station-level circumferential deformation field is achieved, the method can be used in the multi-procedure machining process, deformation in-situ compensation of the procedure is achieved, a clamping positioning strategy of the next procedure is output, and the manufacturing quality and the production efficiency are improved.

The application provides a curved surface ultrasonic imaging device, which comprises a first base, a first track and a second base. The first base has an arc-shaped curved surface, which is arranged according to the circumferential profile of a target to be detected. The first track comprises a plurality of segmented tracks, which are hinged to the first base and can rotate relative to the first base to adjust the curvature of the first track, so that the curvature of the adjusted first track matches the circumferential profile curvature of the target to be detected. The second base is slidably connected with the first track and moves circumferentially along the first track relative to the target to be detected. The second base is provided with a second track, which is arranged along the radial direction of the first track. A probe moving mechanism is slidably connected with the second track and moves radially along the second track relative to the target to be detected.

An auxiliary installation tool for an extrusion rod of an extruding machine comprises an extrusion rod stacking platform provided with a dovetail groove and a fixing hole, and a fixing tool provided with a hanging ring part, a curved surface part, a plurality of installation holes and a threaded piece, the dovetail groove longitudinally penetrates through the extrusion rod stacking platform to form a trapezoid cavity, and the width of an opening in the upper side of the trapezoid cavity is smaller than that of the bottom wall of the trapezoid cavity; the width of the upper opening is correspondingly consistent with the diameter of the extrusion rod, the height of the trapezoidal cavity is correspondingly consistent with the radius of the extrusion rod, and the fixing holes are formed in the top walls of the two sides of the upper opening; the curved surface portion is formed in a semi-arc shape in which the inner circumferential surface coincides with the outer circumferential profile of the extrusion rod, the center of the semi-circle coincides with the midpoint of the upper opening of the dovetail groove, the hanging ring portion and the plurality of mounting holes are formed in the flange portions on the two end sides of the curved surface portion respectively, and the fixing holes and the mounting holes are arranged correspondingly. The tool can play a role in fixing during installation, prevents the tool from moving, guarantees the installation stability, and reduces the labor intensity.

Eyeglass frame comprising a front frame (3) having a pair of lens-bearing rims (4) for holding respective lenses (5), each lens-bearing rim (4) comprising a frame-like element (11) along its individual circumferential profile, the frame-like element being provided with a bearing surface (12) against which at least a portion of a circumferential edge (10) of the respective lens (5) can abut, wherein a groove (13) is provided in the region of a portion of the frame-like element (11) being configured to receive at least a portion of the circumferential lens edge (10), and wherein at least one retaining element (15) is provided on the corresponding lens-bearing rim (4) and is configured to secure the lens (5) against the frame-like element (11) with a positive-locking connection of the elastic snap-lock type after the lens (5) has been received in the groove (13), the retaining element (15) comprising an elastically flexible tongue (16).the tongue (16) projects from the frame-like element (11), wherein the tongue (16) comprises at a free end a tooth-like formation (17) projecting transversely from the tongue, wherein the tooth-like formation (17) is configured to make contact with the lens (5) after the lens (5) is inserted into the rim (4) in a direction towards the frame-like element (11) and to be elastically deformed, wherein the tongue (16) is configured to press the lens (5) against the frame-like element (11) by means of the tooth-like formation (17) into an undeformed state after the elastic return of the tongue (16), wherein the tongue (16) extends from the frame-like element (11) at a spaced distance from the corresponding lens-bearing rim (4) to allow the tongue (16) to be elastically deformed.

A lock assembly for securing a wear member to a support structure includes a collar and a pin. The collar includes a top surface, a bottom surface opposite the top surface, an outer circumferential profile including at least eight planar surfaces extending around a perimeter of the collar between the top and bottom surfaces, and a bore extending along a central axis from the top surface to the bottom surface. The pin is configured for receipt in the bore of the collar.

A drop-off tool with a mechanical packer, wherein the drop-off tool is configured to protect against pre-setting the mechanical packer. The tool configured to prevent premature setting of a downhole device, the tool comprising a support member having a first shoulder, a reduced diameter section, and a second shoulder, wherein the reduced diameter section is positioned between the first and second shoulders; a tubular member having a circumferential profile feature on its outer surface; a retention element having a proximal portion and a distal portion, wherein: prior to activation, the proximal portion of the retention element is engaged with the circumferential profile feature and positioned adjacent to the first shoulder; and upon activation, the proximal portion of the retention element is displaced into the reduced diameter section; and wherein axial movement of the support member in first direction causes displacement of the proximal portion of the retention element.

The invention discloses a microchannel plate reaming concentricity testing method and device, and relates to the technical field of microchannel plate detection. According to the main technical scheme, the method comprises the following steps: selecting a first test region in a functional region of an MCP flaring end surface subjected to reaming treatment, and obtaining a microscopic morphology image containing a preselected characteristic channel circumferential contour; turning over the sample, and acquiring a microscopic image of a second test area at a position corresponding to the non-flaring end surface; as the two surfaces are in a positive and negative correspondence relationship, after the second test area image is subjected to mirror image overturning, the second test area image and the first test area image can realize spatial accurate alignment on the same-name micropore channel; and mapping the two images to the same Cartesian coordinate system in a unified manner, comparing the center coordinate offsets of the same characteristic channel in the circumferential contours of the two images, and converting the center coordinate offsets into actual physical sizes in combination with an image scale, thereby quantitatively obtaining the chambering concentricity test result of the MCP sample. According to the method, high-precision and visual representation of the submicron concentricity deviation is realized.

Vehicle pneumatic tires with a tread having at least two circumferentially circumferential profile areas of certain widths, for example profile ribs (1, 2), each of which is composed of geometrically identical profile elements, so-called pitches (P1 to P5, P1' to P5'), arranged successively around the circumference, which are provided in at least three different circumferential lengths (L1 to L5, L1' to L5'), wherein the arrangement of the pitches (P1 to P5, P1' to P5') around the tire circumference in each profile area follows a separate noise-optimized pitch sequence, wherein the total number of pitches (P1 to P5, P1' to P5') in at least one circumferentially circumferential profile area differs from that in at least one further circumferentially circumferential profile area, characterized in thatthat the total number of pitches (P1 to P5) in the profile area with the highest total number is up to 3% greater than the total number of pitches (P1 to P5, P1' to P5') in the profile area with the lowest total number.

A lock assembly for securing a wear member to a support structure includes a collar and a pin. The collar includes a top surface, a bottom surface opposite the top surface, an outer circumferential profile including at least eight planar surfaces extending around a perimeter of the collar between the top and bottom surfaces, and a bore extending along a central axis from the top surface to the bottom surface. The pin is configured for receipt in the bore of the collar.

The invention belongs to the technical field of trundle assembling, and discloses an automatic trundle assembling device which comprises an orientation frame, a plurality of supporting grooves are formed in the top of the orientation frame, a plurality of inner ring photoelectric sensors are installed on the inner wall of the orientation frame, and a plurality of outer ring photoelectric sensors are fixedly connected to the outer wall of the orientation frame. And the acquisition ends of the inner ring photoelectric sensor and the outer ring photoelectric sensor face the bracket and are used for jointly detecting the circumferential contour of the ball above the top surface of the bracket. According to the device, the circumferential contour of the steel ball is comprehensively detected through the inner ring photoelectric sensor and the outer ring photoelectric sensor, the limitation of sampling detection is avoided, the weighing sensor detects the weight of the steel ball, and a dual detection mechanism ensures that the steel ball has weight abnormity and surface defect identification; structures such as a supporting frame and a suction nozzle are integrated in the same device, sorting and transferring can be directly carried out after detection is completed, manual intervention is not needed, the assembly time is shortened, and the efficiency is improved.

The utility model provides a kind of surface mount structure rotor and motor, it is related to motor field, in view of the problem that surface mount rotor is not improper in the process of magnetic steel sticking and leads to poor gluing effect of limiting tooth structure, by the length of limiting tooth along the axial direction of rotor iron core is designed to be less than the axial length of the magnetic steel contained by corresponding positioning groove, provide avoidance space for gluing path, realize the effective positioning of magnetic steel, avoid the process complex problem caused by using additional tooling, when gluing, glue head can be operated in the area outside the axial length of limiting tooth, avoid the collision of glue head and limiting tooth, so that glue head and rotor iron core can be kept appropriate distance from each other, ensure that glue can be smoothly attached on rotor iron core;The recess relative to the outer circumferential profile of rotor iron core is set as glue storage groove at the groove bottom of positioning groove, to provide storage space for glue.

This invention discloses a device and method for detecting the circumferential contour of a precision-forged mandrel, enabling precise measurement of the circumferential geometric contour of the cross-section of the spiral groove with male and female lines on the surface of the precision-forged mandrel. The device includes a base, a turntable system mounted on the base, a two-dimensional planar unidirectional moving device, a three-dimensional coordinate R-direction swinging device, and a three-jaw single-unit rotary clamping device positioned above the two-dimensional planar unidirectional moving device. The two-dimensional planar unidirectional moving device drives the three-dimensional coordinate R-direction swinging device and the three-jaw single-unit rotary clamping device to move along the Y-axis. The three-dimensional coordinate R-direction swinging device is poweredly connected to the three-jaw single-unit rotary clamping device, and drives the three-jaw single-unit rotary clamping device to swing along the R-direction. A contour measurement system mounted on the base includes a motion device and a contour measurement system. The contour measurement system includes a probe, and the motion device drives the contour measurement system to move along the X-axis and Z-axis.

The application discloses a kind of high-precision thin-walled high-temperature alloy material pipe interface processing method, comprising, step one, clamping pipe interface assembly, clamping plate is welded with pipe interface assembly, wherein the clamping plate includes base, rib plate, stand and pressing plate, one side end surface and the lower end surface of mounting plate between stand form a gap, and then along the circumferential profile of mounting plate interval welding, pressing plate is tightly pressed on the upper end surface of mounting plate, then through base and machine tool worktable connection;Step two, milling and boring pipe interface, milling object is the inner surface of pipe interface, outer surface, when milling, adopt the combination mode of rough milling, semi-finish milling and finish milling;Boring object is the inner hole of pipe interface, when boring, adopt the combination mode of rough boring, semi-finish boring and finish boring.The application effectively reduces the deformation amount in the process of thin-walled part machining, effectively controls the machining size, improves the processing qualified rate, and reduces the consumption of tool.

A lock assembly for securing a wear member to a support structure includes a collar and a pin. The collar includes a top surface, a bottom surface opposite the top surface, an outer circumferential profile including at least eight planar surfaces extending around a perimeter of the collar between the top and bottom surfaces, and a bore extending along a central axis from the top surface to the bottom surface. The pin is configured for receipt in the bore of the collar.