59results about How to "Play a pre-positioning role" patented technology

The invention relates to the technical field of high-voltage live wiring, in particular to a wire clamp intelligent installation tool. The wire clamp intelligent installation tool comprises a frame body which comprises a wire clamp fixing frame used for fixing a wire clamp; a tightening device which is arranged on the frame body, is in transmission connection with the grabbing part and drives thegrabbing part to clamp or loosen the main wire; a wire locking device which is arranged at the side part of the wire clamp fixing frame, a clamping jaw used for fixing the main wire is arranged on thewire locking device, and the clamping jaw is driven to move towards the grabbing part of the wire clamp so as to push the main wire into the grabbing part; by providing the wire clamp intelligent installation tool, the problems that an existing wire clamp installation device mainly depends on manual operation, the difficulty is large, the working efficiency is low, and meanwhile certain risks exist in the aspect of safety are solved. The invention further provides intelligent equipment.

The invention relates to a rotatable LED lamp tube comprising a lamp tube main body and rotary lamp caps at two ends of the lamp tube main body. Each rotary lamp cap comprises a fixing assembly and a rotary assembly sleeved on the end portion of the lamp tube main body, wherein indexing teeth are arranged in each fixing assembly, and locking teeth corresponding to the indexing teeth are arranged on each rotary assembly. The rotary assemblies rotate along with the lamp tube main body, the indexing teeth are arranged on the fixing assemblies, the rotary assemblies are provided with the locking teeth, when the locking teeth are meshed with the indexing teeth, the rotary assemblies and the fixing assemblies are fixed, and when the locking teeth are separated from the indexing teeth, the rotary assemblies and the fixing assemblies can rotate relatively. Through meshing and separation of the locking teeth and the indexing teeth, rotary locking and unlocking of the rotatable LED lamp tube can be achieved. Therefore, the meshing of the locking teeth and the indexing teeth enhances reliability of the rotary locking, and further improves use reliability of the rotatable LED lamp tube.

The invention belongs to the technical field of electric power systems, and relates to a high-voltage electrified aerial bare conducting wire lifting crane and a rubber coating spray painting robot ofthe high-voltage electrified aerial bare conducting wire lifting crane. A lifting device in the lifting crane comprises a wire speed adjusting device and wire winding devices, wherein the wire speedadjusting device is installed in the middle of the upper end of a machine frame, and the wire winding devices are installed on the two sides of the wire speed adjusting device. The wire speed adjusting device comprises a supporting frame, a worm and a worm wheel, wherein the supporting frame is installed on the machine frame, the worm is arranged on the supporting frame, and the worm wheel mesheswith the worm. A second hand wheel is fixedly installed on the outer side of the worm wheel, and a plurality of third hand wheels are evenly and fixedly installed on the upper side of the worm wheel.Each wire winding device comprises a wire winding roller, a guide rod and a first hand wheel. The wire winding rollers are fixedly arranged at the free ends of the worm, the guide rods are fixedly arranged above the wire winding rollers, and the first hand wheels are installed on the outer sides of the wire winding rollers. Sliding blocks are arranged on the guide rod in a penetrative mode, and traction wheels are fixedly installed on the sliding blocks. Pull ropes which are used for lifting the rubber coating robot are wound around the wire winding rollers, and the free ends of the pull ropespass through the traction wheels. The problem that in the prior art, the potential safety hazard exists in the mode that an automatic spray painting robot is conveyed by a control system is solved.

The invention relates to an auger connecting plate drill jig hole device, comprising an upper drill plate and a lower drill plate. The upper drill plate and the lower drill plate are connected through a plurality of vertically arranged connecting rods. The upper drill plate is provided with a plurality of drill jig holes. The diameters of all the drill jig holes are the same. The diameter of each drill jig hole is smaller than the diameter of a to-be-processed hole of an auger connecting plate. The position of each drill jig hole is consistent with the position of the to-be-processed hole of the auger connecting plate. The auger connecting plate drill jig hole device is rational in design, simple in structure, easy in manufacturing, flexible in use, and good in practicability. Using the device can improve working efficiency, accelerate work processing, ensure continuous production, and improve processing precision and product quality.

The invention belongs to the technical field of jade machining, and particularly relates to a strip-shaped jade rounding device. The strip-shaped jade rounding device comprises a worktable, a clamping mechanism, a transverse moving mechanism and a longitudinal moving mechanism; the clamping mechanism and the longitudinal moving mechanism are respectively arranged on the worktable; the transverse moving mechanism is arranged on the longitudinal moving mechanism; the clamping mechanism comprises a first-stage supporting block, a second-stage supporting block, a primary rotating shaft and a secondary rotating shaft; the first-stage supporting block is arranged at the left end of the top of the worktable; the second-stage supporting block is arranged at the right end of the top of the worktable; a first-stage cylinder is arranged at the top of the first-stage supporting block; a moving table is arranged at the free end of a piston rod on the first-stage cylinder; a first-stage sliding rail is arranged at the bottom of the moving table; the first-stage sliding rail is fixedly arranged on the worktable. According to the strip-shaped jade rounding device, a diamond saw blade can perform reciprocating linear movement in a transverse direction automatically; manual operation is not required; the automation degree is high; the labour intensity is reduced; the production efficiency is improved.

The invention discloses an electric connector and a connecting piece structure thereof. The connecting piece is used for fixing the electric connector on a printed circuit board (PCB) and comprises a main body portion and a welding portion plugged on the PCB. The bottom end of the welding portion is bent upward and extends to form a hook portion for hooking up the end face of the PCB, and the hook portion and the tail end of the welding portion connected through an arc-shaped bent portion. The electric connector comprises a connector main body, and the connecting piece is fixedly installed on the connector main body. Due to the fact that the bottom end of the welding portion of the connecting piece is bent upward and extends to form the hook portion, the hook portion hooks up the end face of the PCB, the pre-positioning effect can be played in welding, and the stable combination of the electric connector and the PCB is facilitated. What's more is important is that due to the fact that the hook portion is bent upward along the bottom of the welding portion, the length of the welding portion of the connecting piece can be decreased, the arc-shaped bent portion is firstly contacted with soldering tin in the plug hole of the PCB in welding, and then the hook portion is matched with the arc-shaped bent portion to play a good welding role of an auxiliary reflow soldering process.

The invention provides an impeller of a centrifugal fan, and belongs to the technical field of machinery, and the impeller solves the problem of high manufacturing difficulty in the prior art. The impeller of the centrifugal fan comprises an impeller body and an end cover, wherein the impeller body comprises a connecting base and a plurality of blades; the blades and the connecting base are of an integrated structure; the impeller body and the end cover are of an split type structure; the inner side edges of the blades are connected to the connecting base; the outer side edges of the bases are provided with a connecting part I; the end cover is in the shape of a circular ring, and is provided with a connecting part II which corresponds to the connecting part I; and the connecting part I and the connecting part II are connected through a fastener. The impeller of the centrifugal fan provided by the invention is compact in structure and is relatively low in processing difficulty.

The invention provides a protection frame of a road roller, belongs to the technical field of machinery, and solves the problem that the protection frame of a conventional road roller is inconvenient to mount. The protection frame of the road roller comprises a U-shaped frame body, wherein the frame body comprises two cylindrical connecting ends, a connecting frame is abutted against to the end surface of each connecting end, and the two connecting frames are V-shaped; each of the connecting frames comprises a fixing part and a connecting part, wherein each fixing part is horizontally arranged and is provided with a bolt hole, and each connecting part is obliquely arranged and is abutted against the end surface of the corresponding connecting end; a connecting column is arranged on the outer side wall of each connecting part, and is provided with outer threads; each connecting column and the corresponding connecting frame are shaped at one time through the same material; and a supporting part which is protruded in a plate-shaped manner is arranged on the side wall of each connecting end, each supporting part is parallel with the corresponding part, a through hole opposite to each connecting column is formed in each supporting part in a penetrating manner, each connecting column is arranged in the corresponding through hole in a penetrating manner, a nut is in threaded connection to each connecting column, and the two side surfaces of each supporting part, the corresponding part and the corresponding nut are respectively and tightly abutted together. The protection frame of the road roller has the advantage of being convenient to mount.

The invention discloses a hydraulic clamp achieving rapid clamping and locating. The hydraulic clamp achieving rapid clamping and locating comprises a base. First installation seats, second installation seats and a third installation seat are arranged on the base. The upper end of each first installation seat is provided with lever cylinders. The side wall of each first installation seat is provided with first stop blocks, a first linear push cylinder and a second linear push cylinder. Each first linear push cylinder and the corresponding second linear push cylinder are orthogonally arranged. Each second installation seat is provided with a second stop block. The third installation seat is provided with a third stop block. The hydraulic clamp achieves rapid clamping and accurate locating, lightens work intensity and improves machining efficiency; and clamped workpieces do not deform in the machining process, and a machining center can conduct displacement and rotation operations on the clamped workpieces beneficially.

The invention discloses a method for cast-bonding of a journal of a finished product roller through a protective jacket, and belongs to the field of roller repairing. The method comprises the steps of flaw detection, truncation, protective jacket manufacturing, protective jacket installation, cast bonding, protective jacket dismounting and the like. The method effectively solves the problem that a traditional cast bonding process is prone to scalding and bumping the roller, the cast-bonding repairing success rate is improved, and the cast-bonding repairing difficulty of the finished product roller is greatly reduced.

An automatic wire clamp mounting tool comprises a rack body which is installed on a movable arm and used as a wire clamp fixing frame for wire clamp mounting; a wire locking device which is arranged on the rack body, and provided with a fastener which is driven to clamp or loosen a wire; and a wire clamp tightening device which is arranged on the rack body in a driven sliding mode, is connected with or separated from the wire in a driven mode, and is provided with a connecting piece. The connecting piece drives the wire clamp to clamp the wire or loosen the wire. Via the automatic wire clamp mounting tool, the problems that an existing power connection device mainly depends on manual operation, the difficulty is large, the working efficiency is low, and meanwhile certain risks exist in theaspect of safety are solved.

The invention discloses a laboratory thermostat, which comprises an equipment shell and a group of cushion frames installed at the bottom of the equipment shell; a touch panel is installed on the front side surface of the equipment shell in an embedded manner, a heater is installed at the inner bottom of the equipment shell, two temperature sensors are symmetrically arranged on two opposite inner side walls in the equipment shell, the equipment shell is internally filled with a heating medium, a bottomless containing groove is fixedly inserted in the top of the equipment shell, a placement frame is installed above the bottomless containing groove, and a plurality of placement holes are formed in the placement frame in an array mode. On one hand, an old filling heating medium after impurities are filtered out can be pumped back into the equipment shell again to be reused, so that the heating medium can always keep good heat conduction efficiency; and on the other hand, the stability performance of the placement frame after the placement frame is fed into the bottomless containing groove is greatly improved in a manual mode, so that accidents such as disintegration of the placement frame and the test tube in the heating process are avoided.

The invention discloses a multi-section aluminum foil pasting device for a shell of a gas generator. The device comprises a shell conveying rotary disc, a film taking and placing mechanism and a rolling film pasting mechanism; the film taking and placing mechanism comprises a film suction cylinder, a rotation driving device for driving the film suction cylinder to rotate, and a film suction cylinder driving device for driving the film suction cylinder to move back and forth between a film taking station and a film placing station; a multi-claw pneumatic chuck in the film suction cylinder at the film placing station drives a jacking block to extend out of an opening in the film suction cylinder so as to jack and press multiple sections of to-be-pasted aluminum foils on the outer circumferential wall of the film suction cylinder on the inner wall of the shell to be locally fixed; and the rolling film pasting mechanism comprises a roller for rolling and pasting all the aluminum foil on the inner wall of the shell and a roller driving device. According to the multi-section aluminum foil pasting device, aluminum foil is divided into multiple sections to be pasted, internal stress caused by pulling of the aluminum foil in the rolling process is effectively reduced, it is ensured that the aluminum foil is not wrinkled and degummed, and the air tightness is not affected, the aluminum foil is adsorbed to the film suction cylinder, locally pressed and pasted to the inner wall of the shell for pre-positioning and then rolled and pasted to the inner wall of the shell through the roller, the relative position precision after pasting is ensured, and the manufacturing process is stable and reliable.