20144 results about "Cam" patented technology

A power tool includes a housing, a motor being controlled to run at a speed between 15,000 rpm and 32,000 rpm, an output spindle, a rotary impact assembly configured to transmit rotational motion with intermittent rotational impacts from a cam shaft to the output spindle, a hammer of the rotary impact assembly having an inertia between 400 kg·mm2 and 3,000 kg·mm2, and a single stage compound planetary transmission including a first planet gear meshed with a sun gear and a second planet gear meshed with a ring gear, the compound planet gear being carried by a planet carrier to achieve a gear reduction ratio between 14:1 and 30:1. The power tool is configured to achieve a fastening torque of at least 900 foot-pounds (a) in a time of less than 3.5 seconds, and / or (b) with an input energy of less than 2,500 Joules.

Height adjustable seat posts for bicycles are described herein. An example height adjustable seat post includes an upper tube and a lower tube configured in a telescopic arrangement. The height adjustable seat post includes a piston in the upper tube that divides the upper tube into a first chamber and a second chamber. The piston defines a fluid passageway between the first chamber and the second chamber. The height adjustable seat post also includes a plug in the fluid passageway. The plug is moveable in a linear direction between an open position to enable fluid flow through the fluid passageway and a closed position to block fluid flow through the fluid passageway. The height adjustable seat post further includes a motor and a cam assembly to convert rotational motion of the motor to linear movement of the plug.

A convertible stroller is provided that includes a shell configured to support an infant. A pair of rear legs are pivotally coupled to the shell and a pair of front legs are pivotally coupled to a respective rear leg. The rear legs and the front legs are retractable to a first transport condition, and deployable away from the shell to a second transport condition usable as a stroller. A front wheel may be coupled to each front leg that is rotatable about a horizontal axle in the second transport condition. Each front wheel has a post that acts as an axis of rotation in the second transport condition. A cam sleeve is provided that is movably disposed on each post. In a first position, the cam sleeve allows rotation about the axis of rotation, and in the second transport condition prevents rotation of the front wheel about the axis of rotation.

Various embodiments of an accessory bracket for attaching accessories to protective equipment are shown. The accessory bracket includes a mounting bracket body, a center tab, and one or more cam levers that allow for secure attachment to protective equipment. The accessory bracket is designed to improve attachment and retention of accessories to protective equipment.

A coulter assembly for collecting soil samples from an agricultural field in one embodiment comprises an annular collection blade configured for penetrating soil to capture a sample, an annular cam ring configured for stationary mounting to a frame of an agricultural vehicle and comprising a cam track, a blade hub coupled to the blade for rotatably supporting the annular collection blade from the annular cam ring, and a movable sample collector mounted to the annular collection blade. The moveable sample collector is configured and operable for extracting a soil sample as the annular collection blade is rotated through the soil. The moveable sample collector in one embodiment comprises a piston mechanism including a cylinder and rod movably disposed therein which actuated by the annular cam ring to alternatingly open and close a collection end of the cylinder as the annular collection blade rotates through the soil.

The invention relates to the technical field of numerical control machining, in particular to a CAM post-optimization method and system for geometric error compensation of a multi-axis linkage numerical control machine tool. The method comprises the following steps: firstly, carrying out kinematics analysis and geometric error modeling on a target machine tool, and deploying the target machine tool in a CAM post-optimization module; then actual state parameters of the target machine tool in the machining process are collected in real time through a laser interferometer; a motion instruction of a target machine tool and a detection result of a laser interferometer are synchronously obtained through a CAM post-optimization module, and then geometric errors of a linear axis and a rotating axis in the operation process of the target machine tool are calculated in real time through a kinematic model and a geometric error model. According to the method, different linear axis compensation modes are adopted for different instructions; and a cutter shaft attitude vector error and a cutter cutting point position error are calculated in combination with inverse kinematics, and are corrected step by step. The problem that the error compensation precision of a controller in an existing numerical control machine tool is insufficient can be solved.

The quick connect vehicle attachment as disclosed herein generally includes a bayonet lug having a series of threads that engage a tow hook boss on one end and a locking pin protruding out opposite sides of an interface shoulder on another end for select slide-in reception into a bayonet housing and along a cam slot for locking engagement therewith in a pair of slotted receptacles under a spring-biased preload.

A foldable device may include a foldable layer and a hinge mechanism. The hinge mechanism may include at least one gear module that provides for synchronized movement of the hinge mechanism about a central plane of the hinge mechanism. A lock module may be coupled the hinge mechanism. The lock module may include a cam and a plate including a plurality of recesses. The lock module may selectively lock the hinge mechanism, and the foldable device, in one of a plurality of positions, based on a position of the cam in one of the recesses.

An electronic device is provided. The electronic device comprises a housing assembly comprising a first housing and a second housing configured to rotate with respect to the first housing, a hinge module that is coupled to the first housing and the second housing, the hinge module comprising a rotation gear, a gear assembly comprising a pinion gear rotatably coupled to the rotation gear, a rack gear configured to slide in a first axial direction based on rotation of the pinion gear, a cam structure coupled to the rack gear, and a foot structure coupled to the first housing, the foot structure being moveable in a second axial direction that perpendicular to the first axial direction, based on a first movement of the cam structure and moveable in a third axial direction that perpendicular to the first axial direction, based on a second movement of the cam structure.

A wagon frame locking mechanism to lock the wagon in a use position and unlock for allowing the wagon to transition to a folded position. The locking mechanism has a housing, a top cover secured to the housing, and a push button slidingly connected to the housing. A cam member is adjacent the handle housing, and a locking pin interacts with the cam member. When the push button is actuated, an extension engages the cam member to move the cam member longitudinally from a first position to a second position. A cam surface of the cam member engages the locking pin to axially remove the locking pin from a receiver in a slider member to allow the slider member to move linearly on the wagon frame to collapse the frame.

Methods, systems, assemblies, and / or the like are provided. In some embodiments, an adjustable load handling system (ALHS) includes one or more load arms, wherein the one or more load arms are configured to operably engage one or more totes; a cam assembly including: a cam wheel; and a guide plate including one or more guide slots, wherein the one or more load arms are disposed within the one or more guide slots, and wherein the one or more load arms are operably engaged with the cam wheel such that a rotation of the cam wheel causes the one or more load arms to slide along the one or more guide slots relative to the cam wheel; and a motor operably engaged with the cam assembly, wherein the motor is configured to drive the rotation of the cam wheel.

An arm structure of an electronic device is provided. The arm structure includes an arm body, a first cam disposed on one side of the arm body and including a first hole into which at least a portion of a rotating shaft providing a folding operation of the electronic device is inserted, a peak and a valley being formed around the first hole, a second cam arranged side-by-side on a same axis as the one side of the arm body, spaced apart from the first cam, and including a second hole into which at least a portion of the rotating shaft is inserted, a peak and a valley being formed around the second hole, and a connecting part disposed on another side of the arm body and fastened with a rotating part providing rotation of the electronic device.

A lever device includes a movable bracket and a lever supported on a support shaft on a base such that they are pivotable between lowered and raised positions, first engagement portion(s) on the movable bracket, second engagement portion(s) on the lever, a cam member attached to the support shaft such that it is movable in an axial direction of the support shaft but not rotatable about the support shaft, and a biasing member to bias the cam member to engage with the first and second engagement portions. When the movable bracket etc. are in the lowered position and when they are in the raised position, the first engagement portion(s) engage(s) with the cam member to restrict the movable bracket from pivoting. When the lever pivots upward from the lowered position or downward from the raised position, the second engagement portion(s) disengage(s) the cam member from the first engagement portion(s).

The invention discloses a PCB (printed circuit board) spraying etching machine and a method thereof, belongs to the technical field of spraying etching machines, and provides the following scheme that the PCB spraying etching machine comprises a spraying etching mechanism, a cleaning mechanism is assembled in the spraying etching mechanism, and the spraying etching mechanism comprises etching equipment; the first motor drives the rotating shaft to rotate, the rotating shaft drives the worm and the worm gear to conduct transmission, the polygonal cylinder drives the conveying wheel to rotate, the conveying wheel can achieve the purpose of automatic material conveying, meanwhile, the conveying pump sprays etching liquid to a circuit board through the spraying heads, the angles of the spraying heads are different, and therefore spraying uniformity can be kept, and the spraying efficiency is improved. And the rotating shaft also drives the cam to rotate, so that the cam extrudes the pulley to move, and the cam can be matched with the first spring to realize the reciprocating translational motion of the polygonal cylinder, so that the conveying wheel drives the circuit board to do reciprocating motion, the circuit board can be uniformly etched, and the processing quality of the circuit board is improved.

A hinge apparatus according to various embodiments may include: a bracket including a first coupling part formed in a first direction with respect to a middle of the bracket and a second coupling part formed in a second direction opposite to the first direction with respect to the middle of the bracket, a first body part including a first plate, a first rotation part coupled with the first plate fastened to the first coupling part of the bracket and configured to rotate about the bracket, and a first cam formed in the first rotation part, a second body part including a second plate, a second rotation part coupled with the second plate fastened to the second coupling part of the bracket and configured to rotate about the bracket, and a second cam formed in the second rotation part, and a torque provision unit, including a first follower including a first cam part engaged with the first cam structure and disposed in the bracket, a second follower including a second cam part engaged with the second cam structure and disposed in the bracket, and a pressurizing part disposed in the bracket between the first follower and the second follower and configured to provide an elastic force to the first follower and the second follower in opposite directions.

A receptacle delivery system that includes a rail extending between first and second locations of an instrument and a carriage configured to move on the rail between the first and second locations of the instrument. The carriage includes a bracket having opposed first and second sidewalls and a base extending between the first and second sidewalls, where the carriage is configured to support a receptacle. The carriage further includes a pair of opposed support pads, where the pair of support pads are configured to (a) move toward a receptacle supported by the carriage as the carriage moves from the first location toward the second location, and (b) move away from a receptacle supported by the carriage as the carriage moves from the second location toward the first location. The carriage also includes a pair of meshed cam gears rotatably coupled to the first sidewall, where each cam gear is coupled to a different one of the support pads.

A hinge mechanism includes a base, a rotating assembly, and a damping assembly. The rotating assembly includes a first rotating arm and a second rotating arm. The first rotating arm and the second rotating arm are rotatably connected to two sides of the base respectively. One side that is of the first rotating arm and that is close to the base has a first cam surface. One side that is of the second rotating arm and that is close to the base has a second cam surface. The damping assembly includes a transmission member, a first fastening part, and an elastic member. The transmission member is slidably disposed on the base in a first direction. The transmission member is located between the first rotating arm and the second rotating arm. Two sides of the transmission member abut against the first cam surface and the second cam surface respectively.

A strapping tool is disclosed herein. In one or more embodiments, the strapping tool includes a motive power source; and a tensioning assembly operatively coupled to the motive power source, the tensioning assembly including a cam member and at least one tensioning foot member, the cam member operatively coupling the at least one tensioning foot member to the motive power source, and the at least one tensioning foot member of the tensioning assembly configured to apply tension to a piece of strapping while being driven in an oscillatory manner by the motive power source. Also, in one or more embodiments, the strapping tool includes a jaw lifting assembly, the jaw lifting assembly configured to raise the at least one sealing jaw member out of a strapping pass line of the strapping tool so that the piece of strapping is capable of being inserted into the strapping tool.

A rotary impact tool includes a motor and an impact mechanism. The impact mechanism includes a cam shaft with a first cam groove rotatably driven by the motor, a cam ring received over the cam shaft with a second cam groove on its inner surface and a third cam groove on its outer surface, a hammer received over the cam ring with a fourth cam groove on its inner surface, an anvil with an output shaft and configured to be selectively engaged by the hammer, a spring configured to bias the hammer toward the anvil, a first ball received in the first and second cam grooves to couple the cam ring to the cam shaft, and a second ball received in the third and fourth cam grooves to couple the hammer to the cam ring.

The invention discloses corrugated pipe fatigue test equipment in a vacuum state, which comprises a machine body and a moving assembly arranged at the bottom of the machine body, and a hollow pull pipe is arranged on the machine body in a sliding manner. A to-be-tested corrugated pipe is fixed through a flange plate and covered with a transparent cover, a connecting rod and a threaded base are connected and fixed through a nut pipe sleeve, a lower disc and an upper disc are arranged on a guide rod, a fastening nut is rotated, the upper disc is pressed downwards, the upper disc transmits pressure to the lower disc through an elastic piece a, and the transparent cover is fixed; a closed space is formed inside the corrugated pipe, the vacuum pump vacuumizes the inside and the outside of the corrugated pipe through the connecting pipe c and the connecting pipe a, at the moment, the driving unit drives the cam, the corrugated pipe is repeatedly stretched and compressed under the action of the elastic piece b, the fatigue strength of the corrugated pipe is tested in a vacuum state, and the fatigue strength is measured according to the length of the corrugated pipe to be tested. The height of the driving unit is controlled through the electric control telescopic rod, it is guaranteed that the corrugated pipe has enough space for testing, and the applicability is good.

The utility model discloses a feeding device capable of feeding continuously, which belongs to the technical field of feeding and charging and comprises a feeding hopper, a feeding pipe is mounted on the lower surface of the feeding hopper in a penetrating manner, a plurality of mounting plates are welded on the outer surface of the feeding hopper, mounting bolts are mounted on the mounting plates in a threaded manner, a fixing plate is fixedly mounted on the surface of the feeding hopper, and the fixing plate is fixedly mounted on the lower surface of the feeding hopper. A motor is fixedly mounted on the side surface of the fixed plate; a motor is arranged to be matched with a cam and a disc for use, the disc is matched with a rotating roller and a sliding frame which are eccentrically arranged for use, a sliding rod drives a dredging block to move up and down for dredging, materials can be rapidly input into the injection molding machine through a feeding pipe, and a first sliding plate is driven to drive a blocking plate to move in cooperation with rotation of the cam; the front blocking plate and the rear blocking plate move in a staggered mode, alternate and continuous falling of materials is achieved, the discharging effect of the materials is effectively improved, and the phenomenon that when the materials are added from one direction at a time, accumulation and blocking are prone to occurring is avoided.

The invention provides a ratchet clutch with a friction cam, which is mainly applied to the technical field of transmission, in particular to the technical field of ratchet clutches. The ratchet clutch with the friction cam comprises a pawl, a ratchet, a return spring, a pawl seat and the friction cam. Under the direct or indirect friction action of the pawl seat or the ratchet wheel, the friction cam can selectively rotate relative to the ratchet wheel or the pawl seat within a certain angle range. And under the direct or indirect action of the friction cam, the return spring and the pawl, the pawl seat and the ratchet wheel can be selectively separated and combined. Compared with the prior art, the ratchet clutch provided with the friction cam can reduce operation noise between the pawl and the ratchet wheel in the separated state.

In an example embodiment, an electronic device may include a display, a first housing; a second housing, and a hinge assembly, wherein the hinge assembly may include a bracket structure, a pair of rotator structures respectively rotatable on a pair of hinge axes, a pair of arms respectively rotatable on a pair of arm axes, and each including an arm cam and a penetrating rail, a pair of pins respectively passing through the penetrating rails, connected to the rotator structure, respectively rotatable on a pair of pin axes, and each including a pin cam interoperating with the arm cam and a sliding guide slidable along the penetrating rail, and a pair of elastic members respectively connected to the pair of pins and each configured to press the pin cam toward the arm cam.

A welding pressing apparatus, comprising a fixing member (11), a turret mechanism (12), a first cam (14), a second cam (15), and a plurality of welding pressing mechanisms (13); the turret mechanism (12) is mounted on the fixing member (11) and can rotate about a vertical axis; the first cam (14), the second cam (15), and the turret mechanism (12) are arranged coaxially; the plurality of welding pressing mechanisms (13) are mounted on the turret mechanism (12) and are evenly distributed in the circumferential direction, and the top end and bottom end of each welding pressing mechanism (13) respectively abut the first cam (14) and the second cam (15); when rotating, the turret mechanism (12) drives the welding pressing mechanisms (13) to rotate synchronously, and while rotating the welding pressing mechanisms (13) can press a collecting disc (18) onto the end face of a winding core (19) or release the pressing state. The present welding pressing apparatus can be matched with a laser welding apparatus (2), and the winding core (19) and the collecting disc (18) are welded during the rotation of the winding core (19), increasing the efficiency of welding the collecting disc (18). Also provided is a turret welding device.

A guide fitting, guiding a body part for simultaneous translational and rotational movement relative to a stationary base, has a guide cam track, a guide element guided in the at least one guide cam track, and a linear guide with at least one guide rail and a running rail displaceable relative thereto, one of which is coupled in a stationary manner to the guide element and the other of which is coupled to the guide cam track by a pivot bearing. The guide cam track or the guide element can be fixedly fastened to the body part. The fitting also includes at least one ejection device with an unlockable force accumulator drives the body part from at least one end position by exerting force against an ejection direction along a limited path, and at least one activator for unlocking the force accumulator of the ejection device.

The invention relates to the technical field of fireproof valves, and discloses an air conditioner smoke exhaust fireproof valve with a smoke filtering function, which comprises a valve body, a filtering and cleaning assembly is arranged in the valve body, the filtering and cleaning assembly comprises a sliding block, the interior of the sliding block slides in the valve body, the sliding block is connected with the valve body through a bolt, an activated carbon plate is fixed in the sliding block, and the activated carbon plate is connected with the valve body through a bolt. A filter screen is fixed in the sliding block, a motor is fixed to the lower surface of the sliding block, a rotating rod is fixed to the driving end of the motor, a first protruding block is fixed to the outer wall of the rotating rod, and a second protruding block is fixed to the outer wall of the rotating rod; and the discharging assembly is arranged at the bottom end of the valve body. Through cooperation of internal structures of the filtering and cleaning assembly, a filter screen and an activated carbon plate are rapidly and effectively cleaned, meanwhile, a multi-section type cam and a telescopic rod component are designed, different amplitudes or beating strengths are provided, it is ensured that the vibration effect can evenly cover all areas of the filter screen, and local cleaning blind areas of the filter screen are reduced.

An arm structure of an electronic device is provided. The arm structure includes an arm body, a first cam disposed on one side of the arm body and including a first hole into which at least a portion of a rotating shaft providing a folding operation of the electronic device is inserted, a peak and a valley being formed around the first hole, a second cam arranged side-by-side on a same axis as the one side of the arm body, spaced apart from the first cam, and including a second hole into which at least a portion of the rotating shaft is inserted, a peak and a valley being formed around the second hole, and a connecting part disposed on another side of the arm body and fastened with a rotating part providing rotation of the electronic device.

An apparatus is provided for completing a blind mate hydraulic connection. A device is equipped at the rear of the device with a shell holding a manifold connected internally to the device cooling system. Clearances between the shell and manifold allow the manifold to rotate in two axes to adapt to a misalignment between the manifold and a rack cooling system. The device is further provided with a cam-handle attached to the front that provides leverage against the rack for overcoming the connection forces of the blind mate. The manifold and cam-handle combine to facilitate disconnecting the device from the rack cooling system from the front of the rack and servicing the device.

An orthopedic fixation device operable for securing bone parts comprising one or more blocking cams integrated into a structural support device such as an intervertebral spacer or a fixation plate. The blocking cam is irremovable from the structural support device without destruction of the blocking cam or the structural support device or both. In preferred embodiments, the blocking cam comprises a central body with one or more tabs extending radially from the central body. The blocking cam is rotatable between a locked mode wherein one of the tabs obstructs removal of a bone anchor from a fixator port of the structural support device and an unlocked mode wherein the bone anchor is unobstructed from removal from a fixator port.

An electronic control clutch structure of an actuator device having a driver, a cam, a clutch wheel, and a transmission wheel is provided. The cam is connected to the driver, is driven by thereof, and includes a first actuating portion and a second actuating portion. The clutch wheel is connected to the rotating draft, rotates with thereof, and is arranged atop on the cam. The cam operatively actuates the clutch wheel. The transmission wheel is connected to the rotating draft. The clutch wheel and the transmission wheel are in a detached state when the clutch wheel is located on the first actuating portion. The clutch wheel and the transmission wheel are in an embedded state when the clutch wheel is located on the second actuating portion. The electronic control clutch structure may adapt uneven areas in the grass to perform weeding work according to the terrain changes of the grassland.