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1296results about How to "Improve clamping efficiency" patented technology

Aircraft skin mirror milling method and aircraft skin mirror milling device

ActiveCN104400086AReal-time thicknessReal-time thickness compensationAutomatic control devicesWorkpiecesSelf adaptiveAirplane
An aircraft skin mirror milling method and an aircraft skin mirror milling device. The device is characterized by mainly comprising a machine tool main framework, a milling apparatus, a vertical-horizontal conversion apparatus, a lug piece holding apparatus, a flexible adsorption apparatus, a top-shore apparatus, a detection apparatus and a thickness measuring apparatus. In the device, an aircraft skin is vertically clamped by the vertical-horizontal conversion apparatus for increasing the clamping efficiency of the aircraft skin and a positioning precision of the aircraft skin is further improved with combination of a vacuum adsorption apparatus so that deformation caused by gravity can be avoided. On the basis of on-line detection by a laser displacement sensor, actual curve surface of the aircraft skin can be detected before processing and aircraft skin processing tool path can be adjusted according to an actual clamping situation for achieving self-adapting numerically-control processing. The top-shore apparatus can support the aircraft skin from backside during a milling process of the aircraft skin, thereby avoiding vibration during processing and improving stability of processing. On-line monitoring of the thickness can be achieved during the processing and thickness compensation can be provided. By means of an integrated control system, cooperative operation of units in the machine tool can be ensured and interference can be avoided.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Guide blade water flow measuring clamp and guide blade water flow measuring method

The invention discloses a guide blade water flow measuring clamp and a guide blade water flow measuring method. Improvements on aspects of a sealing pad, a clamp passage structure and a water inlet waterway control are made. The sealing pad is changed into a mode that a blade is integrally contained and sealed and cavity passage docking is reserved, so that effective sealing is realized and the objective of multi-passage measuring is realized; four corresponding water incoming passages are designed for a clamp corresponding to the blade according to the position of a hole of the blade to be suitable for water incoming systems of four cavities of the blade. By the guide blade water flow measuring clamp and the guide blade water flow measuring method, the four cavities of the blade can be communicated with the four water incoming passages of a measuring system simultaneously only by clamping and mounting the blade for one time, and when measuring any cavity of the blade, water flow value of the cavity can be acquired only by opening a control valve. The guide blade water flow measuring method is simple and convenient to operate and stable in data, and the guide blade water flow measuring clamp is timesaving, laborsaving and good in sealability.
Owner:AECC AVIATION POWER CO LTD

Novel functional flexible clamp and application method thereof

The invention relates to a novel functional flexible clamp and an application method thereof. The clamp is characterized in that the clamp comprises a positioning and clamping groove which is used for positioning and clamping parts, a cleaning and recycling groove which is used for cleaning cutting dust and recycling magneto-rheological liquid and a clamp base; the clamp base is used for fixedly installing the positioning and clamping groove and the cleaning and recycling groove, fixed connections between the clamp and all types of machine tool platforms are achieved, and the clamp base comprises a connection baseplate, electromagnets and permanent magnets; the connection baseplate is of a tabular structure which has a flat bottom surface and a protrusion on the middle of the upper surface, U-shaped grooves which are used for achieving the fixed connections between the clamp and all types of the machine tool platforms of are symmetrically formed in the left side and the right side of the connection baseplate, and a plurality of connection through holes which are used for fixing the positioning and clamping groove and the cleaning and recycling groove are formed in the middle of the connection baseplate; a plurality of grooves are evenly formed in the protrusion on the middle of the upper surface of the connection baseplate in the length and width directions of the connection baseplate, and communication grooves which are used for arranging electromagnet cables are formed among the grooves.
Owner:HEBEI UNIV OF TECH

Impeller blade and impeller upper plate laser welding method and clamping method and jig

The invention is applicable to the field of impeller laser welding and discloses an impeller blade and impeller upper plate laser welding jig, an impeller blade and impeller upper plate clamping method with the jig and an impeller blade and impeller upper plate laser welding method through the clamping method. The impeller blade and impeller upper plate laser welding jig comprises a base assembly, a support assembly mounted on the base assembly for placing and positioning an impeller blade and an impeller upper plate, a pressing plate assembly arranged above the support assembly for pressing the impeller blade and the impeller upper plate to the support assembly, a first telescoping assembly mounted on the base assembly for pressing the pressing plate assembly in the axial direction of the base assembly, a plurality of peripheral pressing structures mounted on the base assembly, and a plurality of lateral positioning structures mounted on the base assembly. The impeller blade and impeller upper plate laser welding jig, the impeller blade and impeller upper plate clamping method with the jig and the impeller blade and impeller upper plate laser welding method through the clamping method solve the technical problems of poor versatility, clamping difficulty and low clamping efficiency, clamping positioning reliability and automation degree of existing impeller laser welding jigs.
Owner:HANS LASER TECH IND GRP CO LTD

Clamping device

A clamping device comprises a supporting frame, a driving mechanism, fixed shafts and at least two clamping assemblies. The fixed shaft is fixedly installed on the supporting frame. The driving mechanism comprises a driving piece and movable shafts connected with the driving piece, and the driving piece is fixedly installed on the supporting frame. Each clamping assembly comprises a first clamping piece, a second clamping piece, a first connecting piece and a second connecting piece, the first clamping pieces and the second clamping pieces are respectively connected to the fixed shafts in a pivoting mode, the first connecting pieces and the second connecting pieces are respectively connected to the movable shafts in a pivoting mode, the first connecting pieces are connected with the first clamping pieces in a pivoting mode, the second connecting pieces are connected with the second clamping pieces in a pivoting mode, and the movable shafts drives the first connecting pieces and the second connecting pieces of the at least two clamping assemblies to move under the driving of the driving piece, so that the first clamping pieces and the second clamping pieces of the at least two clamping assemblies move close to or away from each other to clamp or release a workpiece. The clamping device has the advantage of being simple in structure.
Owner:SHENZHENSHI YUZHAN PRECISION TECH CO LTD

Rapid clamping device

The invention relates to a rapid clamping device. The rapid clamping device comprises a positioning mechanism and abutting mechanisms; the positioning mechanism comprises a base, first positioning assemblies and second positioning assemblies, wherein the base is used for bearing a workpiece, the first positioning assemblies are arranged on the base and used for positioning the workpiece in the first direction, and the second positioning assemblies are used for positioning the workpiece in the second direction; and the abutting mechanisms are connected to the base and each comprise a fixing base, an abutting part and a driving assembly, wherein the abutting parts are matched with the fixing bases in a sliding mode and can abut against the workpiece, and the driving assemblies drive the abutting parts to slide. The clamping device comprises the abutting mechanisms, the abutting mechanisms comprise the fixing bases, the abutting parts and the driving assemblies, the driving assemblies are driven to move, then the abutting parts abut against or keep away from the workpiece, and therefore the workpiece can be rapidly clamped, meanwhile, the machined workpiece can be rapidly loosened, and the clamping efficiency of the workpiece can be greatly improved on the basis of ensuring the clamping stability.
Owner:GUANGDONG TIANJI IND INTELLIGENT SYST CO LTD

Outer surface force control type flexible polishing equipment of bearing outer ring

The invention relates to automatic polishing equipment, in particular to automatic polishing equipment of bearing fittings. The equipment comprises a worktable, a clamping mechanism for realizing clamping and positioning of the bearing outer ring, a polishing mechanism for realizing polishing of the outer surface of the bearing outer ring, and a fixture for mounting the bearing outer ring; the clamping mechanism, the polishing mechanism and the fixture are fixedly connected to the worktable; the fixture is positioned at the lower part of the clamping mechanism; and an abrasive belt of the polishing mechanism is contacted with the outer surface of the bearing outer ring. The outer surface force control type flexible polishing equipment of the bearing outer ring is used for polishing the outer surface of the bearing outer ring to improve the surface smoothness in a mode of not removing materials, realizes flexible contact between the abrasive belt and the outer surface of the bearing outer ring, realizes polishing by dint of constant force, monitors tangential force suffered by the bearing outer ring in real time, keeps constant tangential force and pressure of the bearing outer ring, and guarantees the polishing quality consistency; and after the bearing outer ring coats the fixture, the automatic mounting and polishing operation can be realized, and the automation degree is high.
Owner:滁州辉煌无纺科技有限公司

Film-coating method for glass fiber yarn cluster

The invention discloses a film-coating method for a glass fiber yarn cluster, and belongs to the technical field of glass fiber production equipment. The invention aims to provide the film-coating method for the glass fiber yarn cluster, and the coating method is relatively good in coating effect and is high in film-coating efficiency. The film-coating method comprises the following steps: step I: conveying yarn clusters; step II: grabbing the yarn clusters; step III: pressing the yarn clusters; step IV: coating a film, wherein a coating film is pushed to a specific position through a film feeding device, a gas blowing tube of a film cutting mechanism of the film feeding device works to blow the coating film; and the coating is adhered on the yarn cluster in a sticky mode, and the coating film is pressed onto the yarn cluster through a film-pressing thin sheet of the film pressing device; a clamping rotating device drives the yarn cluster to rotate, the coating film is continuously guided out and is coated on the cluster yarn; and the film is cut off through a blade of a film cutting mechanism; step V: pushing a film, wherein the film pressing device moves upwards and the film pressing device works to level the coating film exceeding the upper end surface of the yarn cluster to the upper end surface of the yarn cluster; and step VI: outputting finished products. The film-coating method is a film-coating method suitable for coating a layer of film outside the glass fiber yarn cluster.
Owner:福德机器人(成都)有限责任公司

Clamping device for automobile parts

The invention relates to the technical field of automobile part clamping and discloses a clamping device for automobile parts. The clamping device for the automobile parts comprises a rack and a clamping mechanism. The clamping mechanism comprises clamping blocks arranged on the two sides of the rack. The clamping blocks are in sliding connection with the rack. The clamping blocks are provided with sliding grooves, the sliding grooves are internally provided with vertical clamping plates, the clamping plates are in sliding connection with the clamping blocks, the clamping plates are provided with springs abutting against the clamping blocks, and the clamping blocks are provided with button switches which can be abutted by the clamping plates. The rack is provided with a sliding block in sliding connection with the rack. The clamping blocks are fixedly connected with the sliding block through connection rods. The rack is fixedly provided with a motor and a ratchet wheel. A drive shaft of the motor is provided with a drive pawl and a check pawl which coordinate with a ratchet wheel. The drive shaft is further fixedly provided with a rotary table. A connection rod is arranged betweenthe rotary table and the sliding block. One end of the connection rod is hinged to the eccentricity position of the rotary table, and the other end of the connection rod is hinged to the sliding block. The rack is further provided with an electric control box electrically connected with button switches. The clamping device for the automobile parts is simple in structure and conveniently clamps theautomobile parts.
Owner:宁波高新区新柯保汽车科技有限公司

Electrode clamping and positioning device for bar heating

InactiveCN101519715AFast and accurate positioning and clampingThe installation surface requirements are not highFurnace typesHeat treatment furnacesProduction lineEngineering
The invention relates to an electrode clamping and positioning device for bar heating, which comprises a connecting plate, a floating machine frame, a flexible current-conducting plate and a floating clamping mechanism, wherein the floating machine frame comprises a current-conducting seat and a tension spring, one end of the tension spring is in insulated connection with the connecting plate, the other end of the tension spring is connected with the current-conducting seat, and the flexible current-conducting plate is arranged on the current-conducting seat and extends to the front part of the current-conducting seat; and the floating clamping mechanism comprises an elastic supporting rod, an oil cylinder seat, an electrode, a pressure plate and an air cylinder, wherein two ends of the elastic supporting rod are arranged on the current-conducting seat and an air cylinder seat respectively, the air cylinder is arranged on the air cylinder seat, the piston rod of the air cylinder is connected with a radiating rod, the pressure plate is connected with the radiating rod through a horizontal shaft pin, the electrode of which the top is provided with a cambered surface is arranged on the current-conducting seat through a vertical rotating pin, and a distance for mounting a workpiece is reserved between the pressure plate and the electrode. The device can automatically adjust clamping positions according to the mounting surface of a bar workpiece, allows both ends of the bar workpiece to contact the electrode, and is high in loading and clamping efficiency, convenient in maintenance and suitable to be used on an automatic production line for large-scale production.
Owner:江苏南汽常随汽车零部件有限公司

Multi-station silica gel air bag clamping device for clamping ultrathin wall deep cylinder part

The invention relates to a multi-station silica gel air bag clamping device for clamping an ultrathin wall deep cylinder part and belongs to the field of microoperation and the micro electromechanical technology. The multi-station silica gel air bag clamping device for clamping the ultrathin wall deep cylinder part particularly comprises an air bag clamping head, a conical surface quick-insertion connector, a multi-station rotary table and a gas circuit system. The air bag clamping head comprises an air bag, a center retainer, a ring fastening gasket and a connection transition part. The conical surface quick-insertion connector comprises a quick-change connector plug and a quick-change connector socket. The multi-station rotary table comprises a 360-degree manual rotary table and a pinboard. The gas circuit system comprises a gas source, a filter, a pressure regulating valve, a speed controlling valve, a magnetic exchange valve and a gas pipe connector. The multi-station silica gel air bag clamping device for clamping the ultrathin wall deep cylinder part solves the problems that clamping of thin-wall parts is small in strength, poor in intensity, and deformation, invalidation and even damage are prone happening. Use of the quick-change connector and the multi-station rotary table can effectively achieve quick and flexible clamping and assembling of parts of different sizes and the same kind, facilitate operation and improve assembling precision and assembling efficiency.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Thin-wall gear ring self-centering tensioning installation fixture

The invention provides a thin-wall gear ring self-centering tensioning installation fixture. The thin-wall gear ring self-centering tensioning installation fixture comprises a spindle basic disc, a compression disc, a compression nut, a spring and a plurality of tensioning steel balls. The compression nut compresses the compression disc, the compression disc compresses the tensioning steel balls arranged in radial through holes in an annular wall, therefore, the purpose of tightening a thin-wall gear ring from inside to outside is achieved, and radial location of the gear ring is completed. In the process of clamping, the tensioning steel balls evenly distributed on the spindle basic disc are simultaneously stressed, the thin-wall gear ring can receive outward tensioning force evenly, and therefore deformation of the thin-wall gear ring is effectively restrained; meanwhile, the centering performance of the thin-wall gear ring on measurement equipment is guaranteed. The thin-wall gear ring self-centering tensioning installation fixture effectively reduces deformation of the thin-wall gear ring in the process of clamping, eliminates the steps of concentric centering on the measurement equipment after clamping is completed, and improves clamping efficiency and detection accuracy.
Owner:XI AN JIAOTONG UNIV

Clamping structure of circuit board

The invention discloses a clamping structure of a circuit board, which comprises a base, wherein the top of the base is fixedly connected with a box body, a bottom plate is slidably connected betweentwo sides of the inner wall of the box body, fixed blocks are fixedly connected at two sides of the bottom of the inner wall of the box body respectively, one side of the inner wall of each fixed block is fixedly connected with a first sliding block, the other side of the inner wall of each fixed block is fixedly connected with a second sliding block, an upper check block, which is located betweenthe first sliding block and the second sliding block, is fixedly connected between the front and back sides of the inner wall of each fixed block, the bottom end of each rotating rod runs through thecorresponding fixed block and extends to the internal part of the fixed block, and the end, which extends to the internal part of the corresponding fixed block, of each rotating rod is fixedly connected with a fixed rod. The invention relates to the technical field of a circuit board clamping structure. The clamping structure of the circuit board can clamp effectively and can perform adjustment according to different circuit boards, thereby being convenient for fixing and clamping different circuit boards, reducing unnecessary waste, greatly improving the clamping efficiency and being very convenient in use.
Owner:曹诗晴
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