836 results about "PRESSURE FEET" patented technology

The present invention is directed to apparatus and methods for clamping and controlling flash around a manufacturing tool engaging a workpiece and preventing fill within he workpiece. In one embodiment, a clamp for securing a workpiece during a manufacturing operation includes a housing and a foot biased away from the housing, the foot defining an opening through which a manufacturing tool may pass to engage the workpiece. In another embodiment, the manufacturing tool is a rotating or counter-rotating shoulder friction stir spot welding tool. In accordance with other aspects of the invention, the foot defines at least one recess for holding flashing.

A temporary movable/removable compression partition wall system for partitioning a room includes a wall component and spaced-apart pressure feet at the top of the wall for pressing against a track positioned between the top of the wall and the ceiling and additional spaced-apart pressure feet at the bottom of the wall for pressing against a track positioned between the bottom of the wall and the floor. This wall is temporarily, securely and rigidly positionable at a selected location in a room and subsequently removable with substantially no damage to the ceiling, floor or walls.

A printed circuit board machining apparatus includes a spindle that holds a tool for machining a printed circuit board and a pressure unit for pressing the printed circuit board to a table in machining the printed circuit board. The pressure unit includes a pressure foot movable up an down along the spindle, a rotating member having a plurality of pressure pieces through which a through hole for passing the tool is formed and provided so as to select one among the plurality of pressure pieces, a motor for moving the rotating member, cylinders and electromagnetic valves for moving the pressure foot up and down and a control section for controlling the cylinders and electromagnetic valves. The control section rotates the motor so as to select the pressure piece and controls the cylinders and the electromagnetic valves to change force for pressing the printed circuit board.

A high speed handheld power drill includes a housing with a motor, a chuck rotationally driven by the motor, and a drill bit clamped in the chuck. A pressure foot is mounted on the housing for coaxial rotation about the drill bit and lockable in a selectable angular position relative to the housing. A drill guide is slidably disposed within the pressure foot at an outer end thereof and biased for coaxial sliding movement between the drill bit and pressure foot. A vacuum cuttings pickup and coolant fluid delivery tool is coupled to the drill guide and arranged to deliver coolant fluid to the drill bit and to remove drill cuttings and coolant fluid and vapor therefrom during drilling. A coolant fluid reservoir is coupled to the drill motor housing and adapted to deliver selectably metered amounts of coolant fluid to the cuttings pickup and coolant delivery tool during drilling.

The invention belongs to the field of a tool fixture and provides a fixture structure for glass mould machining. The fixture structure comprises a base seat, a pressure foot slide groove is arranged on the surface of one side of the base seat along the length direction of the surface, pressure feet are arranged on the pressure foot slide groove in a matched mode, a supporting mould block fixing seat and a supporting mould block slide cavity are arranged on the base seat, and the positions on the base seat where the supporting mould block fixing seat and the supporting mould block slide cavity are arranged correspond to the lower portion of the center position of the length direction of the pressure foot slide groove; the supporting mould block fixing seat is matched with the supporting mould block slide cavity, a supporting mould block fixing seat nut is arranged on the supporting mould block fixing seat in matched mode, the supporting mould block fixing seat nut is connected with one end of a lifting screw rod of the supporting mould block fixing seat, and the other end of the lifting screw rod of the supporting mould block fixing seat is arranged on the pressure foot slide groove in a supporting mode; a supporting mould block is fixed with one side of the supporting mould block fixing seat, one end of each pressure feet stretches out the surface of one side of the base seat, wherein the end and the surface both face towards the supporting mould block. The fixture structure for the glass mould machining has the advantages that the fixture structure breaks away from a traditional electric spark mode that flower engraving machining is used for a cavity of the glass mould, the flower engraving quality and efficiency are ensured, and the operation is convenient and fast.

The invention discloses a built-in type automatic pressure foot lifting mechanism of a sewing machine. The built-in type automatic pressure foot lifting mechanism comprises a housing, a linear driver, a back lever, a front lever and a pull rod, wherein the housing comprises an upright column part; a cavity is formed in the upright column part; the linear driver is fixedly mounted in the cavity and comprises a drag rod which is capable of linearly moving in a reciprocating manner; a back pin hole of the back lever is hinged with one end part of the drag rod, a first front pin hole of the back lever is rotationally connected onto the housing through a pin shaft, and the distance from the back pin hole to the first front pin hole is greater than the distance from a second front pin hole to the first front pin hole; the front lever comprises three pin holes, the first pin hole is rotationally connected onto the housing through a pin shaft, and the second pin hole is hinged with a pressure foot lifting plate; and the back end of the pull rod is hinged with the second front pin hole of the back lever, and the front end of the pull rod is hinged with the third pin hole of the front lever. According to the built-in type automatic pressure foot lifting mechanism, the linear driver is arranged in the housing, so the structure of the whole mechanism is more compact, the appearance of the mechanism is more attractive, and vibration and noise produced when the automatic pressure foot lifting device works are also reduced.

The invention provides a sewing machine. The sewing machine comprises a main shaft, a material feeding mechanism, a presser foot lifting mechanism, a driving motor, a needle pitch adjusting power transmission mechanism and a presser foot lifting transmission mechanism, wherein the material feeding mechanism is provided with a material feeding swinging seat; the needle pitch adjusting power transmission mechanism enables power transmission to continuously exist between the driving motor and the material feeding swinging seat; a collision avoidance structure is arranged in the presser foot lifting transmission mechanism; a corner of an output shaft of the driving motor is provided with a needle pitch active adjusting area and a presser foot lifting area; when the output shaft of the drivingmotor operates within the needle pitch active adjusting area, the sewing machine is provided with effective needle pitch; the collision avoidance structure enables no power transmission to exist between the driving motor and a presser foot lifting mechanism; when the output shaft of the driving motor operates within the presser foot lifting area, the presser foot lifting transmission mechanism enables power transmission to exist between the driving motor and the presser foot lifting mechanism; and the absolute value of a needle pitch corresponding to an angle of the material feeding swinging seat is not larger than a maximum absolute value of the effective needle pitch. According to the sewing machine, timely response, suspended seam and very good needle pitch adjusting stability of the needle pitch adjusting mechanism are realized.

An automated machining head with vision and procedure includes a pressure foot provided with side windows with the capacity to open and close, encasing the machining tool, associated with a vertical movement device provided with mechanical locking, vision equipment connected to a computer and a communications module. The main advantage is endowing an anthropomorphic robot, originally designed for the car industry and with relatively low accuracy, with a notably higher machining accuracy, equivalent to equipment of a much greater accuracy or to parallel kinematic-type robots, also compensating, in real-time and in a continuous manner, for off-centring and loss of perpendicularity by the pressure foot, which are common in conventional heads and are a source of errors and inaccuracy.

The invention discloses an invisible anchor bolt of an external wall insulating decoration plate and an external wall insulating decoration integration packaged plate. The invisible anchor bolt comprises an inner tabletting with a column-shaped presser foot and a fastener, and the inner tabletting is embedded and inserted in a heat-insulating board, the pressure foot is an inner screw thread, one end of the fastener with an outer screw thread is connected with the pressure foot, and the outer wall of the other end is provided with a barb which is inserted in a mounting hole of the wall body, and the waist portion is provided with an outer tabletting which is vertical with the fastener, when the fastener is tightly screwed on the pressure foot, the outer tabletting is tightly clung on the surface of the packaged plate. The external wall insulating decoration integration packaged plate comprises a heated board whose inner surface is tightly clung on the wall body, and an alkali-fast break fiber web checked cloth layer and a decoration layer which are adhered on the outer surface of the plate one by one, the inner tabletting with the pressure foot are embedded into the heated board, and the surface of the pressure foot and the inner tabletting are all fell into the heated board, and the pressure foot is provided with an inner screw thread which is connected with the fastener. The invention has the advantages of simple structure, beauty and firmness, convenient transporting, and fast assemblage, which achieves a possibility of the industrialized production of external wall insulating decoration packaged plate.

The invention discloses a method for full-needle knitting of a fully-formed sweater on a double-needle-bar flat knitting machine. The sweater is knitted on the double-needle bar computerized flat knitting machine with high-position rollers or pressure feet, a front needle bar or a rear needle bar of the computerized flat knitting machine is in full-needle needle withdrawing in the knitting process, a local knitting technology is adopted, knitting is conducted in the transverse direction of the sweater, knitting needles can achieve full-needle needle withdrawing in the knitting process, and fabric is compact. In the knitting process, due to the fact that only one needle bar is used for cut piece knitting, pockets and other parts can be knitted for the fully-formed sweater, multi-needle bar transfer can be conducted, and pattern design is achieved.

Locking systems are provided for a retractable cover system mounted on the bed of a flat bed trailer or similar structure. The cover system includes a bow arrangement for supporting a flexible cover or tarpaulin with a front and a rear bow structure. A front locking mechanism includes a plurality of self-latching latch mechanism mounted within a hollow beam of a bulkhead mounted on the bed. Hasps are mounted to the front bow structure and aligned to activate and engage the latch mechanisms. A rear locking mechanism includes a telescoping mechanism mounted with the rear bow structure. The telescoping mechanism includes a pressure foot that engages a reaction plate mounted to the bed. The pressure foot and reaction plate define complementary features that allow the foot to engage the reaction plate at multiple positions prior to extension of the telescoping mechanism.

The invention relates to the technical field of sewing machines, in particular to a thread trimming/loosening foot-lifting/pressing device for a sewing machine, and the sewing machine comprising the device. The device comprises a power member, a cam structure, a thread trimming driving crankshaft, and an ejector rod, wherein the cam structure rotates under the driving of the power member, and is provided with a first driving contour surface and a second driving contour surface; the thread trimming driving crankshaft is connected with a thread trimming mechanism, a first transmission pin is arranged on the thread trimming driving crankshaft and is matched with the first driving contour surface, and the first driving contour surface is provided with a thread trimming driving section for driving the thread trimming mechanism to execute a thread trimming operation; a second transmission pin is arranged at one end of the ejector rod, and the other end is connected with a thread loosening mechanism and a foot lifting/pressing mechanism, the second transmission pin is matched with the second driving contour surface, and the second driving contour surface is provided with a thread loosening driving section for driving the thread loosening mechanism to execute the thread loosening operation and a foot lifting/pressing driving section for driving the foot lifting/pressing mechanism to execute the operation of lifting/pressing the foot. And three functions of thread trimming, thread loosening and foot lifting/pressing are realized through one power member.

The invention discloses an automatic presser foot lifting and backward and forward sewing device of a sewing machine. The automatic presser foot lifting and backward and forward sewing device comprises a presser foot lifting driver. A first straight rod of the presser foot lifting driver is connected with one end of a pull rope of a pull rope assembly, and the other end of the pull rope is connected with one end of a swing rod. The other end of the swing rod is in contact with one end of a presser foot lifting rear lever which can swing around the lever axis. A presser foot lifting mechanism is connected with the other end of the presser foot lifting rear lever and can be driven to act through swing of the presser foot lifting rear lever. The automatic presser foot lifting and backward and forward sewing device further comprises a backward and forward sewing driver. A second straight rod of the backward and forward sewing driver is connected with one end of a pull rod, and a swing plate seat is connected with the other end of the pull rod. Backward and forward sewing action can be achieved through swing of the swing plate seat. The automatic presser foot lifting and backward and forward sewing device is simple and compact in structure, convenient to install and maintain, low in manufacturing cost and capable of being in comprehensive application with a traditional presser foot lifting and backward and forward sewing mode. The invention further discloses the sewing machine with the automatic presser foot lifting and backward and forward sewing device.

The invention relates to automatic hole forming equipment for composite airfoil components. The automatic hole forming equipment is five-axis linkage numerically controlled equipment, and comprises a main rack, a B-axis support, an A-axis rotary table, a Z-axis subassembly, a Y-axis drag chain, a Z-axis drag chain, a scrap suction device, a knife lubricating system and an oil pump of the lubricating system, wherein a spindle is arranged on the Z-axis subassembly; a component knife which can be used for drilling holes, reaming holes and reaming pits is hydraulically clamped on the spindle; four laser distance measuring sensors are symmetrically arranged at ends of the Z-axis subassembly and are distributed on four quadrants; a pressure foot support is arranged below the Z-axis subassembly; and pressure feet are arranged on the periphery of a center hole of the pressure foot support, and are provided with pressure foot sensors. By using the automatic hole forming equipment and the hole forming method, the clamping and positioning precision is high, the accuracy of formed holes is high, and damage to composites in a hole forming process is reduced, so that the quality of a product is improved while the work efficiency is improved.

The invention discloses an automatic hole making device of a robot and a machining method. The hole making device comprises a six-shaft series-connection mechanical arm, a mechanical arm tail end rotating mechanism and an automatic hole making tail end executor; the six-shaft series-connection mechanical arm is connected with the automatic hole making tail end executor through the mechanical arm tail end rotating mechanism; and the automatic hole making tail end executor comprises an automatic positioning alignment module, a hole making module, a pressure foot module and a rack. The automatic hole making device of the robot has an automatic positioning alignment function, is high in hole making positioning precision, can achieve automatic hole making in cooperation with a mechanical arm and is high in machining efficiency. According to the automatic hole making device of the robot, conversion of different stations is achieved through the rotating freedom degree of the mechanical arm tail end rotating mechanism, and the device structure is simplified. The automatic hole making device of the robot can be additionally provided with other functional modules, is good in development performance, can integrate functional modules for riveting, hole making precision and quality detection and the like, adapts to different requirements and achieves various functions.

The invention relates to a space orientation computing method for a numerical control bracket, which comprises the following steps of: 1, processing three-dimensional digital analogy of each part; 2, defining a fixed mechanism and a moving mechanism in each digital analogy; 3, setting a drive command for a multiple axis movements of a numerical control bracket; 4, simulating whether each axis movement accords with an actual condition; 5, correcting a movement zero point of the digital analogy of the numerical control bracket; 6, enabling a spindle axes of an automatic drilling and riveting machine to be coincident with a normal line of a riveting point and the riveting point to be coincident with the center of a pressure foot bush; 7, refreshing the digital analogy; 8, figuring out data of five axes of the numerical digital bracket and data of a lifting position and a rotating angle of a lower riveting head under the condition of automatic drilling and riveting on any point on the surface of an airplane; 9, carrying out collision checking and batch output on space orientation data; and 10, carrying out numerical control programming to ensure that the automatic drilling and riveting machine continuously operates. According to the space orientation computing method, the numerical control system can automatically operate according to the space orientation data, and the airplane on the numerical control bracket meets the working requirements of the automatic drilling and riveting machine on the space.

The invention discloses a trim thread, a lifting foot pressure mechanism and a sewing machine, belonging to the technical field of the sewing machine. The trim thread and the lifting foot pressure mechanism resolve the problems in the former sewing machines including the complex structure and the loud noise in an operation. The trim thread and the lifting foot pressure mechanism comprise an electrical machine. The driving parts are fixed in an output shaft of the electrical machine. The driving parts are provided with a driving part one and a driving part two. The driving part one and the driving part two are arranged on the both sides of the axis of electrical machine. The mechanism comprises a lifting foot pressure module and a trim thread module located on the first rotation direction of the electrical machine. The driving part one is linked with the lifting foot pressure module located on the second rotation direction of the electrical machine. The driving part two is linked with the trim thread module. The former two power elements are replaced with one electrical machine in the mechanism. The mechanism has the advantages of simplifying the structure as well as reducing the operating noise of the sewing machine.