82 results about "Countersink" patented technology

The invention provides a dimple quality online detection method and system based on 3D scanning and virtual assembly, and the method comprises the steps: S1, obtaining dimple hole point cloud data, segmenting the point cloud data, and obtaining conical surface point cloud data; s2, performing conical surface fitting on the conical surface point cloud data through a fitting algorithm to obtain a local point set and a cone parameter; and S3, according to the local point set and the cone parameters, pit diameter contour plane fitting is carried out, the pit diameter contour plane and the nail head are assembled in a simulated mode, and a dimple depth error value is obtained. On the basis of 3D scanning and virtual assembly, pit hole surface point cloud analysis, nail rod interference analysis and compensation functions are achieved, pit depth measurement is achieved, and compared with a monocular or binocular vision scheme, the measurement precision is higher.

A can lid shell 10 includes a panel section 11 having a circular peripheral edge, a countersink section 12 formed and recessed along the peripheral edge of the panel section 11, a chuck wall section 13 rising from an edge of the countersink section 12, and a flange section 14 protruding from an upper end of the chuck wall section 13. The countersink section 12 includes a first curved surface portion 123C that is convex toward an internal space SP1. The chuck wall section 13 includes a second curved surface portion 131 that is connected to the first curved surface portion 123C and that is concave toward the internal space SP1. Furthermore, the second curved surface portion 131 and the first curved surface portion 123C are formed to be thicker as both are directed from an edge p8 on the flange section 14 side to an edge p6 on the panel section 11 side.

To provide a countersinking method capable of stably providing a desired countersinking shape without damaging the surface of a workpiece irrespective of the hardness of the workpiece.SOLUTION: This countersinking method for forming a countersinking shape having a countersinking surface of a prescribed angle on a sheet metal workpiece (W) comprises: a first step of forming a lower hole (W1); a second step of plastically deforming one opening edge of the lower hole (W1) by a first punch (62) having an inclined part (621) of a first countersinking angle (θ1) larger than a prescribed angle (α) to form a primary countersinking surface (W21) of the first countersinking angle (θ1); and a third step of plastically deforming the primary countersinking surface (W21) by a second punch (63) having an inclined part (631) of a prescribed angle (α) to form a secondary countersinking surface (W31) of a prescribed angle (α) having an aperture equal to that (φW21) of the primary countersinking surface (W21).SELECTED DRAWING: Figure 3A

A system for assembling a container and closure comprising an expanding collet which has a plurality of pivoting collet segments, each configured to simultaneously pivot radially outward about a pivot point. The collet comprises a lip that is engagable with the rim of the open end of the container and an angled tip positioned radially inward from the lip and shaped to press a countersink portion of the closure against an interior wall of the container as the collet segments pivot radially outward. As the container and the chuck are brought together, the rim engages with the lips of the collet segments and causes the angled tips of the collet segments to pivot outward toward the interior wall of the container, thereby pushing the countersink portion of the closure against the interior wall of the container.

The invention relates to the technical field of valve manufacturing, and discloses a special counter sinking tool for valve manufacturing, which comprises a supporting and positioning mechanism, and the top end of the supporting and positioning mechanism is connected with a counter sinking mechanism, an aperture grinding mechanism and a linkage mechanism. A tooth surface rod of the second positioning rack is just engaged with the tooth surface of the second positioning gear, so that the tooth surfaces of the two first positioning gears respectively drive the two first positioning racks and the lifting table to lift, and a grinding seat connected to one side of the lifting table is stably contacted with a countersinking working surface; at the moment, when the positioning shaft and the cutter rotate, the polishing seat and the positioning seat are driven to rotate along the positioning frame, so that the polishing seat fixed at the top end of the positioning seat stably contacts and polishes burrs of a countersink, the burrs are treated in time after the countersink is finished, subsequent procedures are avoided, the machining quality of the valve body is improved, and the assembling difficulty of the valve body is reduced; the connection strength is improved.

A can shell includes a center panel, an inclined panel wall extending at a downward angle from the center panel, an annular countersink formed around the inclined panel wall, the annular countersink including an inner countersink wall and an outer countersink wall, a chuck wall extending from the outer countersink wall, the chuck wall including a kick portion having a curved shape beginning at a point lower than a lowest point of the inclined panel wall, and a curl extending radially outwardly from the chuck wall.

The invention relates to a method for manufacturing an aerodynamic panel (32) for an aircraft propulsion assembly (10), comprising the steps of: a) applying at least one reinforcing plate (38, 42, 44) to a first surface (34a) of a wall (34); the method includes the steps of a) forming a wall (34, 36), b) rigidly attaching a reinforcing plate (38, 42, 44) to the wall (34, 36) by friction stir welding, c) forming through holes (50) through the wall (34) and the reinforcing plate (38, 42, 44), the holes (50) being formed through a bead (40), and d) fitting screws (52, 54, 56) into the holes (50), the screws (52, 54, 56) including countersunk heads (58) having a thickness (H) greater than the thickness (E1) of the wall (34) and less than the thickness (E3) of the bead (40).

An insert for securing a shaft of an arrow to a cutting tip includes a body member extending between a distal end and a proximal end, a stem extending from the distal end of the body member and formed integrally with the body member, the stem including a protrusion extending about a first end of the stem in a circumferential direction, and a sleeve including a countersink. The countersink engages the protrusion of the stem, such that, when the sleeve is disposed about the stem and positioned adjacent the distal end of the body member, the sleeve is coaxial with the stem. The cutting tip is secured to the proximal end of the body member.

The invention describes a system and method for closing and extracting filled pre-rolled cones. The system comprises of a holding piece, a catch chamber, a closing piece, and an extracting piece. The holding piece comprises a plurality of openings to hold the filled pre-rolled cones and the openings have a wider diameter on the top that tapers towards the bottom. The closing piece comprises a plate, legs and a plurality of countersink holes. The countersink holes are configured to be placed and pressed over the top of each filled cone to funnel the excess paper of the cone. The extracting piece comprises a base and one or more pins. The countersink holes of the closing piece can accommodate one or more pins of the extracting piece. An application of force on the base and one or more pins of the extracting piece can fold the excess paper of the filled pre-rolled cones in the holding piece and release the pre-rolled cones through the openings of the holding piece into the catch chamber.

The utility model belongs to the technical field of bus ducts, and particularly relates to a plug-in type bus duct. The main groove body is used for power transmission and distribution, the mounting base is detachably connected with the main groove body, and copper bars are arranged at the two ends of the main groove body. The mounting base comprises a base plate used for external fixed connection, a countersink groove is formed in the base plate, two clamping blocks distributed oppositely are slidably arranged in the countersink groove, a guide assembly is arranged between the clamping blocks and the base plate in a matched mode, a power push block is arranged on one side of each clamping block in a spaced mode, and a connecting rod assembly is arranged between each power push block and the corresponding clamping block. A power piece is arranged on the side, away from the clamping block, of the power push block and used for pushing the power push block to be close to or away from the clamping block. And a locking block which is correspondingly positioned between the two clamping blocks is arranged at the bottom of the main groove body. After the mounting base disclosed by the utility model is mounted, the main groove body can still be vertically and flexibly moved and mounted, so that the mounting flexibility and adaptability are improved.

The utility model discloses circuit board stepped hole controlled deep processing equipment which comprises a processing device, the processing device comprises a first drilling mechanism, a second drilling mechanism, a moving mechanism and an anti-shaking mechanism, the second drilling mechanism comprises a first lifting seat, a first cutter and a first motor, the anti-shaking mechanism is arranged on the first lifting seat, and the first cutter is arranged on the first lifting seat. The anti-shaking mechanism comprises a lifting frame, a first spring and a guide piece; the lifting frame is connected with the first lifting seat in an up-down sliding manner; the first spring is used for downwards extruding the lifting frame; the guide part is used for guiding and limiting the first cutter to prevent the first cutter from shaking, a displacement sensor is arranged on the lifting frame, the displacement sensor is electrically connected with the first lifting base, and the displacement sensor is used for detecting the relative height displacement distance between the lifting frame and the first lifting base and controlling the descending distance of the first lifting base. According to the circuit board stepped hole controlled deep processing equipment, the depth dimension precision of the counter bore of the stepped hole of the circuit board can be improved.

The invention relates to the technical field of countersink drills, and discloses an integrated hard alloy countersink drill which comprises a cutter handle and a countersink drill body, the countersink drill body is fixedly mounted on the cutter handle and comprises a countersink drill body, a drill bit and a drill core, a mounting hole is formed in one end of the countersink drill body and used for fixedly mounting the drill bit, and a hexagonal connector is arranged at the other end of the countersink drill body; an inner hexagonal hole is formed in the cutter handle, and the hexagonal connector is fixedly matched with the inner hexagonal hole; the drill core is coaxially and fixedly connected into the drill bit; the counter bore drill main body mounted in the inner hexagonal hole can be replaced by a screwdriver bit which is coaxially and fixedly mounted; the counter bore drill body and the screwdriver bit can share the same mounting handle, the functions of the screwdriver bit and the counter bore drill are rapidly switched through the self-locking ring, the problem that a traditional counter bore drill is single in function is solved, the operation efficiency is greatly improved, the tool replacement frequency and the carrying burden are reduced, and the practicability is high. And meanwhile, the connection precision loss caused by frequent replacement of tools is reduced.

A knife for a cylindrical rotor includes at least two sharpened edges adapted to cut materials during land clearing or mulching. The knife further includes a top surface and a bottom surface wherein the knife is shaped as an inverted frusto-square pyramid. The knife may further include a tapered sidewall defining one sharpened edge. The angle may be about 30° to about 60°. The knife may have four sharpened edges. The knife further may include an aperture that may be equidistant from the four sharpened edges. The knife is adapted to be moved when one sharpened edge becomes dull. The knife may further include a conical countersunk aperture. The knife may have a thickness of about ¼″ to about ½″.

The utility model discloses a sand mould casting mould convenient to position, which comprises an upper mould plate, a lower mould plate and casting models, the casting models are respectively arranged in the middle of the upper mould plate and the lower mould plate, countersinks are arranged on the periphery of the upper mould plate, bosses are arranged on the periphery of the lower mould plate, and the positions of the countersinks correspond to the positions of the bosses. And positioning pins are respectively arranged at the middle parts of the two ends of the upper template and the lower template. The counter bores and the bosses are correspondingly arranged on the upper mold plate and the lower mold plate and are matched with the positioning pins for use, so that the situation of wrong boxes is avoided when manufactured sand boxes are closed, workers can conveniently and accurately position the sand boxes, the percent of pass of castings is improved, and the mold is convenient to use and simple to operate.

The utility model provides a measuring tool for detecting a counter bore, and relates to the technical field of workpiece measurement, the measuring tool comprises a hexagonal handle, a first measuring head and a second measuring head, the first measuring head and the second measuring head are arranged at two ends of the hexagonal handle, the second measuring head is provided with an angle observation surface, and the first measuring head is used for measuring the maximum diameter of the counter bore and the counter bore. And the second measuring head is used for measuring the minimum diameter and the angle of the counter bore. According to the measuring tool for detecting the counter bore, the conformity measurement of the hole diameter and angle of the 90-degree counter bore of a machined part is quickly realized, the difficulty of an original measuring method is reduced, and the detection efficiency is powerfully guaranteed.

A can shell includes a center panel, an inclined panel wall extending at a downward angle from the center panel, and a looped countersink formed around the inclined panel wall, the looped countersink starting at an inverted point of the inclined panel wall and looping around to an outer countersink wall, wherein the inverted point is proximate to the outer countersink wall.

A can shell includes a center panel. An inclined panel wall extends at a downward angle from the center panel. An annular countersink is formed around the inclined panel wall and includes an inner countersink wall and an outer countersink wall. A countersink base is formed at a bottom end of the inner countersink wall and a bottom end of the outer countersink wall. A chuck wall extends from the outer countersink wall. The inner countersink wall and the outer countersink wall are generally parallel between the countersink base and the inclined panel wall and the chuck wall. A curl extends radially outwardly from the chuck wall. The countersink has a depth of between 0.265 and 0.280 inches from the uppermost surface of the curl and a depth of between 0.085 and 0.11 inches from the center panel.

A beverage can end (10) has a circumferential curl (14) positioned about a longitudinal axis (50). A circumferential wall (15) extends downwardly and radially inwardly from the circumferential curl (14). A countersink (16) extends radially inwardly from the circumferential wall (15). A center panel (12) extends radially inwardly from the countersink (16) and is centered about the longitudinal axis (50). A tab (28) is attached to a public side (32) of the center panel (12) by a rivet (38). A tear panel (20) is defined by a frangible score (22) and a non-frangible hinge segment (25) and extends between ends of the frangible score (22). The frangible score (22) has a check slot (70) defined by a thickened residual which is bounded at opposing ends by portions of the frangible score (22) having a residual thickness less than the thickened residual of the check slot (70).

A parameterized representation of a can end (e.g., for an aluminum can) may be provided. The parameterized representation may include a series of arc segments connected end to end, for example. The series of arc segments may span between an end of a center panel and an edge of the can end. Based on the parameterized representation, a set of can end profiles may be generated having differing parameter values (such as with arc segments that differ in a combination of arc segment included angle and radius). The set of profiles may be evaluated according to criteria (such as buckle pressure and mass criteria). A can end profile may be selected from the set based on performance relative to the criteria. The selected profile may include a countersink radius with a particular threshold or range, for example. The selected can end profile may be formed into a can end.

The invention relates to a countersink blade, a countersink and a manufacturing process of the countersink blade, and belongs to the field of countersinks, the countersink blade is provided with a cutting edge part, the cutting edge part is provided with a row of sawteeth, and the tooth bottoms and the tooth tops of the sawteeth are subjected to rounding treatment; the surface, facing a workpiece, of the blade in the machining process is constructed to be a first inclined face, and a row of sawteeth are located on the first inclined face. And the blade is made of PCD (Polycrystalline Diamond). The countersink blade is provided with the sawteeth, so that the countersink can machine high-precision concentric lines on the end face of a hole at a time, the machining efficiency and quality of the concentric lines are greatly improved, the stability and consistency of the concentric lines are good, and the assembling quality of bolt connecting pieces in the later period is guaranteed; the method has the advantages that the structure is simple, the blade roughness can be customized according to customer requirements, the differentiated machining requirements are met, the microcosmic sawtooth shape of the countersink blade is accurately designed by matching with the laser micromachining technology, and the high-precision concentric line structure and the high-precision and long-life cutting performance are formed.

The utility model discloses a plane spot-facing drill, relates to the technical field of spot-facing drills, and aims to solve the problem that when the extension length of an existing drill needs to be adjusted, a cutter bar needs to be taken down from equipment, so that the machining efficiency is affected. A locking mechanism is arranged on the cutter bar, an adjusting mechanism is arranged below the locking mechanism, and the extending length of the drill bit is controlled through the adjusting mechanism; by means of the structure arranged on the cutter bar and the adjusting mechanism arranged on the cutter bar in a matched mode, when a worker needs to adjust the extending length of a drill bit, the worker only needs to pause equipment and manually rotate an adjusting piece in a rotating hole, and the adjusting piece is matched with an ejector rod and a fixing nut, so that the ejector rod moves in the adjusting hole, the drill bit is pushed upwards, and then the drill bit can be adjusted. And meanwhile, the drill bit slides in the mounting groove and the positioning groove, so that the extending length of the drill bit is adjusted to meet different machining requirements, and compared with an existing adjusting mode, the design scheme is convenient, rapid, time-saving and labor-saving.

A fastening system for an aircraft includes first and second parts of the aircraft, a bolt hole including a bolt countersink and being defined by a bolt hole surface of the first part, a nut hole including a nut countersink and being defined by a nut hole surface of the second part, a bolt having a shank including threads, and a bolt head with an undersurface complementarily shaped to the bolt countersink, and a nut having threads and having a nut chamfer complementarily shaped to the nut countersink, the shank being dimensioned relative to the first and second parts, the bolt hole and the nut hole such that the shank is spaced from one of or both of the bolt hole surface and the nut hole surface. A method of fastening a first aircraft part with a second aircraft part using a bolt and a nut is also described.

An example device includes a housing including a top portion, and a lower portion which connect together to house a spring, and a bushing disposed inside the housing with a backside of a bushing rested against the spring, and the backside of the bushing is in contact with a probe tip of a depth measurement gauge disposed in a top portion of the housing.

The utility model discloses a quick-change welding alloy counter boring cutter, and relates to the technical field of cutters. The quick-change type welding alloy counter boring cutter comprises a cutter bar, a cutter head and a cutter head, the cutter handle part extends in the axial direction of the cutter bar; the connecting part is connected with the cutter handle part and extends in the axial direction of the cutter bar; the first clamping part is arranged on the connecting part; the reverse reaming tool bit is connected with the connecting part; and the second clamping part is arranged on the reverse reaming tool bit. The reverse countersink solves the problems that the existing reverse countersink is provided with a tightening screw, so that the condition that the screw is abraded and looses in the tightening process is often caused, and the replacement process is relatively tedious.

This utility model relates to the field of countersink devices, providing a countersink device for gearbox end covers. The countersink device for gearbox end covers includes a support portion for insertion into a mounting hole in the gearbox end cover; a connecting rod portion, the first end of which is slidably connected to the support portion; and a drive portion, slidably connected to the second end of the connecting rod portion, the output end of which is connected to a cleaning cutter head for cleaning the end face of the hole to be cleaned. This countersink device for gearbox end covers avoids problems such as uneven cleaning or excessive cutting caused by positioning deviations, ensuring the accuracy and quality of the cleaning operation. Operators can easily adjust the working position of the drive portion according to the specific position, depth, and angle of the hole to be cleaned in the gearbox end cover, ensuring that the cleaning cutter head accurately reaches the area to be cleaned. It adapts to the cleaning needs of gearbox end covers of various specifications and structures, expanding the applicability of the device; and it can quickly and effectively clean the end face of the hole to be cleaned, improving cleaning efficiency.

The present disclosure relates to a method for correcting pre-compensation of a countersink dimension in numerically controlled countersinking. The method includes: acquiring historical machining data of countersink hole machining of a plurality of countersink holes for products, and forming a historical dataset; performing a correlation analysis on the historical machining data of the countersink hole machining, and expanding a data volume of the historical dataset; performing a statistical analysis based on the expanded historical dataset to obtain a correction value for a pre-compensation value of a countersink hole machining dimension, and correcting a countersink hole dimension machining parameter.

A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

The utility model discloses a machining countersink which comprises a tool handle, a connecting block and a tool bit, the diameter of the tool bit is larger than that of the tool handle, and the connecting block is connected with the tool handle and the tool bit. The tool bit comprises a first chip removal groove, a second chip removal groove and a third chip removal groove, and the first chip removal groove, the second chip removal groove and the third chip removal groove are uniformly formed in the outer surface of the tool bit from high to low; the tool bit comprises a first blade, a second blade and a third blade, the first blade is located at the top end of the first chip groove, the second blade is located at the top end of the second chip groove, and the third blade is located at the top end of the third chip groove; according to the utility model, the procedures of outer diameter machining, groove turning and end face flattening are integrated on one cutter body for simultaneous machining, so that the efficiency is improved.

A method of forming a can end (102) includes obtaining a shell (400) having a center panel (202), a seaming bead (204), a transition wall (406), and a countersink (404), the seaming bead (204) coupled to the center panel (202) by the countersink (404), the countersink (404) having an outer wall (408) coupled to the seaming bead (204) and an inner wall (410) coupled to the transition wall (406), the transition wall (406) coupling the center panel (202) and the inner wall (410) of the countersink (404), the countersink (404) including first and second arcuate transition portions coupling the outer wall (408) and the inner wall (410); and forming a concave bend in the transition wall (406), the concave bend positioned between the countersink (404) and the center panel (202); and reshaping the countersink (404) after forming the concave bend.