42results about How to "Achieve self-centeredness" patented technology

The invention relates to a self-centering clamp for a thin-walled part. The self-centering clamp comprises a mandrel, an expanding sleeve, an adjusting nut and a retaining ring, wherein the mandrel adopts a conical body; the inner wall of the expanding sleeve adopts a conical surface matched with the outer wall of the mandrel, and the outer wall of the expanding sleeve is a cylindrical surface; the expanding sleeve is matched and connected with the conical body of the mandrel through the conical surface of the inner wall; the front end of the expanding sleeve is connected with the step end surface at the rear end of the mandrel through a spring; the rear end of the expanding sleeve is contacted and connected with the adjusting nut through the retaining ring, and the adjusting nut is screwed at the threaded end of the mandrel; the expanding sleeve is sleeved with a flexible positioning sleeve. The self-centering clamp for the thin-walled part is simple in structure, workpieces are convenient to load and unload, self-centering can be realized, particularly, after the flexible positioning sleeve is used, the deformation of the thin-walled part is small in the machining process of clamping the thin-walled part, the machining precision is improved, and the coaxiality and the perpendicularity of the machined thin-walled part can be guaranteed; the expanding sleeve is loosened by the spring, so that the part is convenient to load, unload and machine.

The invention relates to a clamp for a machine tool, in particular to a tap chuck used for keeping a tap on a main shaft of a machine tool. The tap chuck comprises a chuck handle, a round sleeve and a clamping base, wherein the outer side of the round sleeve is provided with a torque regulating mechanism; a length compensation mechanism is arranged between the chuck handle and the round sleeve; a tap clamping mechanism is arranged in the clamping base. By virtue of adopting the structure, the elastic tap chuck can regulate the torque by virtue of the torque regulating mechanism so as to adapt to tap chucks with different torques. In addition, the length regulating mechanism is used for preventing the tap damage caused by the condition that one end of the tap is fixed, while the other end is fed unceasingly. The tap clamping mechanism can be used for realizing self centering of the tap and improving the tap clamping rigidity.

The invention provides a self-positioning clamping lathe. The self-positioning clamping lathe comprises a lathe body, a rotating spindle, an automatic supplementing device, an automatic feeding deviceand a clamp rotating device; the automatic feeding device comprises a feeding driving assembly, a cutting assembly, a self-centering assembly and a cutting control assembly; the clamp rotating devicecomprises a clamping assembly and a clamping control assembly; when the automatic feeding device moves towards the rotating spindle, workpieces falling from the automatic supplementing device at intervals are transported into the clamp rotating device, make contact with the clamp rotating device and then are self-centered, in the process that the automatic feeding device continues moving forwards, the workpieces are automatically clamped through the clamping assembly, meanwhile, the distance between the cutting assembly and the workpieces is controlled through the cutting control assembly, thus automatic feeding, positioning, clamping and machining integration of workpieces are achieved, and the technical problems that in the prior art, the coaxiality between the workpieces and the rotating spindle is difficultly ensured during clamping, the machining error is large during machining, and the precision is low are solved.

The invention provides an improved three-jaw composite chuck, which not only can realize self-centering but also can realize single-jaw adjustment aiming at the shape of workpieces and guarantee clamping of irregular workpieces. The improved three-jaw composite chuck comprises a chuck body, three clamping jaws and chuck threads, wherein the chuck threads are arranged inside the chuck body; the three clamping jaws are arranged inside chutes of the chuck body respectively and meshed with the chuck threads; and the chuck threads are meshed with conical gears which are embedded into the chuck body. The improved three-jaw composite chuck is characterized in that the three clamping jaws comprise a basic jaw respectively; lead screws are arranged inside the basic jaws respectively; and top jaws are arranged inside chutes of the basic jaws respectively and meshed with the lead screws.

The invention relates to a special hydraulic machine for a horizontal fan pressure shaft. The special hydraulic machine comprises a horizontal stand, wherein the stand consists of a base and brackets arranged on two sides of the base. The special hydraulic machine is characterized in that a press driving mechanism capable of moving along the horizontal direction is arranged on the bracket on one side of the base; the front end of the press driving mechanism is connected with a pressing plate; a fan bracket is arranged at the bottom of the stand; and an upper end surface of the fan bracket is of a V-shaped groove structure. When the special hydraulic machine is in use, a fan casing is arranged on the fan bracket and the pressing plate is pushed by the press driving mechanism to move forwards to press the fan shaft into the center of the casing. A horizontal length adjusting mechanism is arranged between the press driving mechanism and the pressing plate and can adapt to casings with different thicknesses and ensure a proper pressing force. A guiding support mechanism is arranged on the horizontal length adjusting mechanism, and thus the horizontal forward movement of the pressing plate is ensured, the stress direction is accurate and the bias press is avoided.

The invention discloses a knurl aligning device for a shaft. The knurl aligning device for the shaft comprises a pair of positive tool arm and negative tool arm which are arranged opposite to each other and a tool arm supporting sliding plate used for connecting the positive tool arm and the negative tool arm, wherein knurl wheels are arranged at one ends of the positive tool arm and the negative tool arm respectively; and the other ends of the positive tool arm and the negative tool arm are arranged on the tool arm supporting sliding plate. The knurl aligning device for the shaft is characterized by also comprising a bracket used for connecting the tool arm supporting sliding plate and a processing machine, a positioning core shaft and spring leaves, wherein through holes are correspondingly formed in the tool arm supporting sliding plate and the bracket respectively; the positioning core shaft penetrates through the through holes of the supporting sliding plate and the bracket; the spring leaves are arranged on the two sides of the bracket respectively; one ends of the leaf springs are fixed to the bracket; the other ends of the leaf springs are abutted to the side part of the tool arm supporting sliding plate; and two spring leaves limit rotation of the tool arm supporting sliding plate with the positioning core shaft as the center. The invention provides the knurl aligning device for the shaft, which can realize self-centering and improve the processing efficiency and accuracy of a shaft spline.

The invention discloses a mango peeling machine. The machine comprises a pushing mechanism and a peeling mechanism, wherein the pushing mechanism comprises an ejection cylinder and a pushing head; theejection cylinder is used for driving the pushing head to push mangos; the peeling mechanism comprises a scaling device, a head cutting device and a breaking device, the scaling device comprises a square frame seat, inner jaws and outer jaws; the inner jaws are fixed on the square frame seat, and the outer jaws are fixed on the square frame seat; an arc tip is arranged at one end of each inner jaw, and an electromagnetic power block is fixed at the other end of each outer jaw; the electromagnetic power blocks are used for driving the outer jaws to mesh with the inner jaws; the breaking devicecomprises a square knife holder frame and a knife rest, the knife holder frame is fixed on the square frame seat, the knife rest is arranged on the knife holder frame, and a breaking knife is arranged on the knife rest; and the head cutting device is positioned between the scaling device and the breaking device. The mango peeling machine has the characteristics of simple structure, high production efficiency and convenience in operation.

The invention discloses a clamp. The clamp comprises a base, a disc cover and multiple clamping claws. The disc cover comprises a circle of disc cover side plate and a disc cover top plate. Multiple top plate guide grooves are formed in the disc cover top plate. Each clamping claw comprises a clamping claw sliding rail and a clamping claw pressure head. The top faces of the clamping claw sliding rails are located above the disc cover top plate, and the clamping claw pressure heads are mounted on the top faces of the clamping claw sliding rails through locking bolts. At least part of each clamping claw pressure head can stretch out of the corresponding clamping claw sliding rail by facing the center of the disc cover top plate. A transmission device used for driving the multiple clamping claw sliding rails to move synchronously is mounted in the disc cover. According to the clamp, self centering of a sample disc can be achieved, it is ensured that the sample disc is located at the center position of the disc cover plate, meanwhile, peripheral and axial fixing of the sample disc is achieved, loosening and up-and-down motion are avoided in the experiment process of the sample disc, and testing precision is improved.

The present invention discloses a mango peeling device. The device comprises a rotary pushing mechanism, a material grabbing mechanism, a peel breaking mechanism and a peeling mechanism; the materialgrabbing mechanism comprises a first cylinder and a second cylinder; the second cylinder is arranged on the power output end of the first cylinder; the second cylinder is provided with two power output ends, each of which is connected to a fixing block; each fixing block is fixed with a connecting plate; each connecting plate is fixed with a clamping claw plate; each clamping claw plate is provided with four flexible clamping claws; each flexible clamping claw is sleeved by a first spring; the peel breaking mechanism comprises peel breaking knifes; each peel breaking knife is sleeved by a second spring; the peeling mechanism comprises a third cylinder; the third cylinder is connected to a swing upper connecting seat; the swing upper connecting seat is hinged to a swing lower connecting seat, and the two connecting seats are also connected by two third springs; the swing lower connecting seat is fixed with an air-operated clamping claw; and the power output end of the air-operated clamping claw is fixed with two peeling clamps. The device has the characteristics of high production efficiency and convenient operation.

The invention provides a feeding method for a feeding mechanism of peeling equipment, comprising the following steps: installing a feeding device, installing a jacking device, installing a conveying mechanism, installing a guiding mechanism, a debugging device and a using device, overcoming the problems in the prior art The technical problem of poor precision of the feeding mechanism of the peeling equipment, and the installation is simple and the operation is convenient, which ensures that there is only one anchor bolt for each feeding, and at the same time reduces the volume of the roller and improves the accuracy.

The invention discloses a mango flower cutter which comprises a material grabbing mechanism, a flower cutting mechanism and a flower cutting rotating mechanism. The material grabbing mechanism comprises a first linear motion device, a fixing base, a second linear motion device, a connecting plate and a material grabbing device; the fixing base is arranged on the first linear motion device, the second linear motion device is arranged on the fixing base, the connecting plate is arranged on the second linear motion device, the material grabbing device is arranged on the connecting plate, the flower cutting mechanism comprises a supporting base, a third linear motion device and a tool rest, the third linear motion device is arranged at the top face of the supporting base, the tool rest is arranged on the third linear motion device, a flower cutting cylinder is arranged on the tool rest, a cutter is connected to the flower cutting cylinder, the flower cutting rotating mechanism comprises adisc type motor and a stretchable cylinder, the disc type motor can driven mangos to rotate, and the stretchable cylinder can drive the mangos to ascend and descend; the mango flower cutter is convenient to operate and high in production efficiency.

The invention discloses an automatic hole opening device for a large tank. The defects that hole opening operation of a chemical tank is not convenient, and work efficiency is low are overcome. The device comprises a worktable and a hole opening rack; a support is arranged below the worktable, a rotation drive mechanism capable of driving the worktable to rotate to any angle is arranged between the worktable and the support, a clamping mechanism used for clamping the tank is arranged on the worktable, a mounting base is arranged on the hole opening rack in a lifting manner, a hole opening motor is arranged on the mounting base in a transverse moving manner, a hole opening tool bit is arranged on an output shaft of the hole opening motor, and the hole opening tool bit is arranged above theworktable. The automatic hole opening device for the large tank greatly facilitates hole opening operation of the chemical tank, and the hole opening work efficiency is improved.

The invention belongs to the technical field of elbow conveying of elbow anti-corrosion adhesive tape winding machines, and relates to an elbow conveying device of an elbow anti-corrosion adhesive tape winding machine, a winding disc is fixedly arranged in the middle, an elbow penetrates through the center of the winding disc, a supporting table is fixedly arranged on the lower portion of the left end of the elbow and the lower portion of the right end of the elbow, and the supporting table is fixed to the ground; the driving centering support is transversely and fixedly arranged on the upper portion of the supporting table. The driving centering bracket is divided into a driving centering bracket I, a driving centering bracket II, a driving centering bracket and a driving centering bracket IV; the two supporting tables are arranged at the bottom of the left end of the bent pipe, and the two supporting tables are arranged at the bottom of the right side of the bent pipe. A driving centering support is arranged on the upper portion of each supporting table. According to the invention, the investment cost of equipment is reduced, the position adjustment between the support rollers of the support frame for supporting the bent pipe is realized, the adaptability to the bent pipes with different diameters is improved, and the self-driving and self-centering of the bent pipe on the driving and centering device are realized.

The invention relates to an engine cylinder wedge-shaped centering clamp. The engine cylinder wedge-shaped centering clamp comprises a guiding sliding sleeve with a main guiding hole, and a positioning mechanism which is connected with the guiding sliding sleeve in a matched manner. The positioning mechanism comprises three or more positioning sliding clamping heads and sliding pieces which are intransmission connection with the positioning sliding clamping heads. The positioning sliding clamping heads are arranged in positioning guiding holes in the side portion of the guiding sliding sleevein the radial direction, the sliding pieces are arranged in the main guiding hole of the guiding sliding sleeve, and the axial directions of the positioning guiding holes are located in the same plane perpendicular to the axial direction of the main guiding hole. The tails of the positioning sliding clamping heads are connected with a plurality of dovetail grooves in the sliding pieces in a one-to-one corresponding fit manner. The dovetail grooves are obliquely arranged relative to the axial direction of the main guiding hole, and the inclination angles of the dovetail grooves are consistent.The guiding sliding sleeve is provided with a standard end face perpendicular to the axial direction of the main guiding hole. According to the scheme, air cylinder sleeve self-centering can be achieved, errors are eliminated to the maximum degree, it is guaranteed that the later air cylinder sleeve finish machining allowance is uniform, and single sides are avoided.

The invention discloses a mango peeling machine. The machine comprises a rotary ejection mechanism, a gripping mechanism, a crushing mechanism and a peeling mechanism, wherein the gripping mechanism comprises a first cylinder and a second cylinder, and the second cylinder is arranged at the power output end of the first cylinder; two power output ends are arranged on the second cylinder, and are respectively connected with a fixed block which is fixedly provided with a connecting plate; a clamping plate is fixed on each connecting plate, and is provided with four flexible clamping jaws; the flexible clamping jaws are provided with first springs in a sleeving manner; the crushing mechanism comprises a crushing knife which is provided with a second spring in a sleeving manner; the peeling mechanism comprises a third cylinder; the third cylinder is connected with an oscillating upper connecting seat; the oscillating upper connecting seat is hinged with an oscillating lower connecting seat, and two third springs are connected between the oscillating upper connecting seat and the oscillating lower connecting seat; pneumatic clamping jaws are fixed on the oscillating lower connecting seats; and two peeling clips are fixed at the power output ends of the pneumatic clamping jaws. The mango peeling machine has the characteristics of high production efficiency and convenience in operation.