30results about How to "Accurate horizontal position" patented technology

The invention relates to an all-in-one machine for vacuum forming, molding and punching, comprising a rack, a material traction device, a heating device, a forming unit, a punching device and a control device; wherein a top die platform and a bottom die platform of the forming device are provided with moulding moulds which are thereupon provided with a convex part or a concave part for forming a light trapping bump on plastic sheets; the punching device comprises a punching shear mechanism, a guide rail which moves frontwards and backwards and a photocell eye for detecting the light trapping bump; the guide rail is arranged in the front of the punching shear mechanism, the photocell eye is arranged in the front of the punching shear mechanism and is connected with a corresponding input terminal corresponding to the control device.In the invention, when forming is carried out, the light trap bump can be formed on the plastic sheet, the flaky plastic products can be prevented from transversely displacing by the guide of the guide rail, the photocell eye can be used to detect the light trap bump and the control device can be used to lead the material traction device to convey the flaky plastic products to preset distance, so that the longitudinal position of the plastic products is accurate when the plastic products enter the punching shear mechanism and the flaky plastic products can accurately arrive at the preset position of the punching mechanism.

A spring device comprising a pair of spaced-apart first and second annular support plates defining a ring with a central axis; a plurality of circumferentially spaced, parallel oriented coil springs disposed between said annular plates; and, a plurality of guide assemblies located at circumferentially spaced positions around said ring, each of the guide assemblies including a first tab extending from one of the plates, a second top extending from the other of the plates to form a generally sliding contact between the first and second tabs as the plates move vertically to compress and/or release the coil springs wherein the first tab has a guide slot extending in a direction perpendicular to the plates and the second tab carries an assembled elongated guide member extending through the slot to guide vertical movement between the plates.

The invention relates to a formwork combination reinforcing and supporting structure used in short-leg shear wall construction and a construction method thereof. The structure comprises formworks used for pouring a longitudinal short-leg shear wall and a transverse short-leg shear wall and split bolts between the formworks, and back supports of the formworks are composed of secondary edges and primary edges. The structure further comprises a plurality of horizontally arranged wall hoop bolts in the height direction of walls on the peripheries of the longitudinal shear wall formwork and the transverse shear wall formwork, wherein the wall hoop bolts are used for connecting and reinforcing a whole formwork enclosure system and the ends of the wall formworks in a tensioning mode. The lower portion of the formwork enclosure system is fixedly connected with short bolts pre-buried in last process, and tensile-connection bottom sealing is formed. For installation of the formworks of the short-leg shear walls, the structures of the formworks themselves are used in combination with the wall hoop bolts, therefore, the stability of a short-leg shear wall formwork supporting system is enhanced, the accuracy of the formworks in horizontal position and structure size is guaranteed, the effects on formwork supporting and reinforcement are achieved, and the purpose of lowering manufacturing cost is realized.

An exemplary embodiment sets forth an apparatus, including a non-collapsible single unit stair comprising: a pair of opposing side rails supporting at least a top step and a bottom step; a coupler adapted to couple the apparatus to an edge of a horizontal surface; and a height adjustable user-support arm, coupled to one of the side rails with a rotatable coupling, wherein the user-support arm is moveable between a support position and a storage position.

The invention discloses a positioning assembly, device and method for reserved joint bars in a shear wall, and relates to the technical field of constructional engineering. In order to solve the problems that according to an existing overall prefabricated reinforcing mesh building technology, reserved joint bar positioning is hard to control, precision is poor, and construction efficiency is low, the positioning assembly comprises a first limiting frame, a second limiting frame, a third limiting frame and a supporting rod, wherein the first, second and third limiting frames are arranged coaxially in a spaced mode, the supporting rod penetrates through supporting rod fixing pins of the second and third limiting frames and is movably connected with the first limiting frame, scale marks are arranged on the supporting rod, and a plurality of joint bar fixing pins are arranged on the first and second limiting frames. The positioning device comprises at least two positioning assemblies arranged in parallel. The positioning assemblies are connected through connecting frame bolts. The positioning method comprises the steps that the positioning device is installed on a constructed reinforcing mesh, reserved joint bars and middle joint bars are positioned and installed, and the positioning device is disassembled.

Internal clamping of a weld-neck fitting to a pipe in preparation for precision tack welding of the fitting to the pipe is established by a pair of alignment and clamping wedge members, each having alignment and gripping members and angulated reaction surfaces which are positioned within the pipe and weld-neck fitting with the angulated reaction surfaces in relatively moveable engagement. One of the alignment and clamping wedge members is moved linearly, causing the angulated reaction surfaces to translate the linear movement to lateral movement, forcing the alignment and gripping members laterally against the internal surfaces of the pipe and fitting and supporting the fitting in precision aligned relation with the pipe to facilitate tack welding. A gauge member confirms precision alignment of the fitting with the pipe before and after applying the tack welds, then the alignment and clamping apparatus is loosened by opposite linear movement of the wedge members which are removed to permit final weld connection of the fitting to the pipe.

The invention discloses a feed mechanism of a VCP (vertical continuous plating) production line, which comprises a machine frame, a controller, a plate storage platform fixed on the machine frame, and a horizontal transmission device, wherein the upper part of the plate storage platform is provided with a sucker device corresponding to the stored plate; the sucker device is connected with an elevating mechanism through a rotating motor; the horizontal transmission device is distributed with a plurality of conductive bars; the side surface of the conductive bars is provided with a normally closed clamp which is butted with the sucker device and used for clamping the plate; the side surface of the machine frame is provided with a push rod device corresponding to the clamp; the feed position of the machine frame is provided with an inductive switch corresponding to the conductive bars; and the inductive switch, rotating motor, elevating mechanism and push rod device are connected with the controller. The feed mechanism disclosed by the invention can complete automatic feed of the plates, enhances the operating efficiency, can ensure the accuracy of the feed position, and is beneficial to subsequent processing.

The invention provides a keel mounting structure of a fabricated integrated ceiling, and relates to the technical field of ceiling keel mounting. The keel mounting structure of the fabricated integrated ceiling comprises a main keel, an auxiliary keel is arranged at the bottom of the main keel, the two ends of the outer side of the main keel are sleeved with first hanging brackets correspondingly,and adjusting mechanisms are arranged in the first hanging brackets; and each adjusting mechanism comprises a first ratchet wheel, the first ratchet wheels are arranged on the outer sides of the first hanging brackets, and first locking bolts are arranged in the first ratchet wheels. According to the keel mounting structure of the fabricated integrated ceiling, the first hanging brackets drive first pawls to rotate, so that the two first hanging brackets rotate to a proper angle to solve the problem of inclination of the main keel, then threaded columns and second locking bolts are driven tomove upwards, thus the horizontal position of the auxiliary keel can be finely adjusted, and therefore, the accurate horizontal position can be achieved during mounting in cooperation with the operation of the adjusting mechanisms.

An exemplary embodiment sets forth an apparatus, including a non-collapsible single unit stair comprising: a pair of opposing side rails supporting at least a top step and a bottom step; a coupler adapted to couple the apparatus to an edge of a horizontal surface; and a height adjustable user-support arm, coupled to one of the side rails with a rotatable coupling, wherein the user-support arm is moveable between a support position and a storage position.

A coordinate measuring apparatus for measuring a workpiece having a workpiece surface includes a sensor to capture the workpiece surface and a mechanism to move the sensor in coordinate directions (x, y, z) relative to the workpiece. The mechanism includes a rigid frame, a mount and measuring skids. The rigid frame includes mutually parallel horizontal longitudinal members having respective horizontal guides. The rigid frame includes vertical supports having respective upper and lower ends. The horizontal longitudinal members are rigidly connected to the upper ends of the vertical supports. The rigid frame includes transverse members oriented transverse to the longitudinal members and being rigidly connected to the lower end of the vertical supports. The transverse members are supported via the mount and a first one of the measuring skids is configured to move the sensor in the coordinate direction (x) along the first and second horizontal guides.

The invention discloses an automobile passenger compartment rear carpet assembly pressing device which comprises a rack. A positioning base, a third positioning assembly and a driving assembly are arranged on the rack. A first positioning assembly and a second positioning assembly are arranged on the positioning base. A press-fitting mechanism capable of ascending and descending in the vertical direction is further arranged on the rack, and a clamping mechanism is arranged on the press-fitting mechanism. After PU cotton and a carpet are sequentially placed on the positioning base from bottom to top and positioned, the press-fitting mechanism moves downwards to enable the clamping mechanism to clamp the carpet and then reset upwards, a gluing robot glues the binding face, and the press-fitting mechanism moves downwards again to enable the carpet and the PU cotton to be in press fit. The driving assembly drives the third positioning assembly to move towards the rear side of the carpet so that a foam plastic piece can be pressed and bonded to the rear side wall of the carpet. According to the automobile passenger compartment rear carpet assembly pressing device, the structure is simple, automatic pressing and bonding of the PU cotton, the carpet and the foam plastic piece can be achieved, the bonding position is accurate, and the working efficiency is high.

Microdrive and modular microdrive assembly for positioning the tips of substantially rigid medical and scientific instruments, such as electrodes, mechanical probes and needles, that are chronically implanted in animals, especially conscious and freely-moving animals, without passing the substantially rigid instruments through tubular guides or using immobilizing stereotactic surgical guide systems, such as arcuate rails mounted on relatively large and unwieldy external surgical headframes. Embodiments of the invention comprise a bottom plate adapted to be surgically attached to the animal and fixedly secured to a frame so that a void in the bottom plate is fixedly disposed over the implantation site. A carriage having a platform for mounting the substantially rigid instrument is alternately lowered and raised by rotating a drive rod connecting the carriage to the frame, enabling precise movement of the tip of the substantially rigid instrument into and out of the animal's body tissue.

The invention discloses a transverse socket and spigot joint suitable for a prefabricated underground diaphragm wall. The transverse socket and spigot joint comprises a first fixing device and a second fixing device, wherein the first fixing device is arranged on the side surface of the wider side of a splicing surface and used for transversely fixing an upper section and a lower section, the first fixing device comprises counter-pull embedded parts and connecting steel plates arranged on the surfaces of the counter-pull embedded parts at the opposite positions of the upper section and the lower section, the second fixing device is arranged on the splicing surface and is used for longitudinally fixing the upper section and the lower section, and the second fixing device comprises connecting pieces arranged on the splicing surface of the upper section and holes formed in the splicing surface of the lower section and used for allowing the connecting pieces to be placed. The transverse socket and spigot joint is simple in structure, the construction quality and the component strength can be effectively controlled, the construction process is simple, the construction efficiency is high, the horizontal position is effectively ensured to be accurate after the upper section and the lower section of the wall are in butt joint, and the waterproof function of wall joints is achieved.

A tray for a panel exposure machine, and also such a machine, enabling a panel to be retained and pressed down so as to be presented facing an exposure device. The tray comprises a work surface (13) adapted to receive panels of different sizes, said work surface (13) being substantially plane and possessing first and second adjacent edges (13a, 13b) extending along substantially orthogonal first and second directions (X, Y) defining a reference corner (C); and first and second holder devices (30a, 30b) of a first type and at least a first holder device (40a) of a second type, each holder device being actuatable between a holding, first state in which it exerts pressure directed towards the work surface (13), thereby defining a holding position, and a rest, second state in which said pressure is released; a positioning device (14) arranged along at least a portion of the first edge (13a) and along at least a portion of the second edge (13b); the holder devices (30a, 30b) of the first type extend along at least a portion of the first and second edges (13a, 13b) respectively, their holding positions being fixed in a plane parallel to the work surface; the holder device (40a) of the second type is movable in a plane parallel to the work surface (13) in order to adapt its holding position as a function of the size of the panel in use.

The apparatus of the present invention uses radar altimeter measurements and stored terrain altitude profiles to provide pre-filtered observations to a Kalman filter for estimating barometric offset at the airport runway, and barometric scale factor for offsets above the runway. These offsets are used with the smoothed baro-inertial output from an inertial reference system to provide 3 dimensional constant rate of descent approach procedures to replace non-precision approach procedures based on constant barometric altitude step approaches. The horizontal positions used as reference for the stored terrain altitude profiles are obtained from a prior art navigation apparatus. The integrity of all measurements is assured by using long term averages of the Kalman filter residuals to detect failures. In addition, the estimated baro offset at the runway is compared for consistency with the baro offset obtained by the pilot from the airport by radio.

A sectional folding overhead door assembly comprising a pair of opposite, vertically disposed side support and guide means defining a door opening between them, each guide means including a first channel and a second channel disposed side-by-side, a door component comprising a first, second, third and fourth rectangular panel adapted for folding vertical movement along said support and guide means, the door component further comprises at each side of the first and second panel a folding movement controlling member, each folding movement controlling member having an folding movement controlling member upper end hingeably connected to a respective side edge of the first and third panel, respectively, and a folding movement controlling member lower end hingeably connected to the respective guide plate lower end around a folding movement controlling member hinge axis, each folding movement controlling member further including a folding movement guiding channel into which folding movement guiding channel a respective side plate guiding pin of a side plate attached to the second panel extends.

The invention relates to a tool assembly for machining inner spherical surfaces. The tool assembly is characterized in that a supporting seat is fixed on a central supporting plate in the front of a lathe square tool post, and a guide rod is fixed in an inner hole of the supporting seat. A tool sleeve is fixed at the front end of the guide rod through a hinge pin I and is connected with a sliding threaded sleeve through a connection rod, and the connection rod is connected with the tool sleeve through a hinge pin II. A tool body is fixed in the tool sleeve through a screw, a threaded rod is screwed in the sliding threaded sleeve, and a handle is connected with the end of the threaded rod. The tool assembly has the advantages of being accurate in spherical center location, suitable for being produced in batch, simple in structure, easy to operate and capable of not affecting other machining processes.