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1116results about "Auxillary equipment" patented technology

Processing method and technological equipment for cylindrical thin and long thin-walled workpiece

InactiveCN102049695AReduce distortionReduce the impact of machining accuracyAuxillary equipmentPositioning apparatusBall bearingEngineering
The invention relates to a processing method and technological equipment for a cylindrical thin and long thin-walled workpiece, which comprises positioning technological equipment and aligning technological equipment, wherein the positioning technological equipment consists of a connecting cylinder, a connecting flange, a positioning cylinder, a compression block, a compression screw, a stop nut and a connection screw; and the aligning technological equipment consists of an aligning technological equipment bottom plate, a bearing pedestal, a core shaft and a ball bearing. The processing method of the invention comprises a processing method suitable for manual operation of ordinary lathe and a processing method for operation of a hydraulic clamping center rest. The invention has the advantages that the deformation of the cylindrical thin and long thin-walled workpiece brought by clamping can be effectively reduced, the influence of workpiece clamping force on the workpiece processing precision is reduced, the processing quality is improved, the processing procedure is simplified, the processing time is shortened, the processing efficiency is improved, the high-quality product rate reaches 100%, the cost is saved at the same time, and the effect in batch production is more obvious.
Owner:XIAN AEROSPACEMOTOR MACHINE FACTORY

Ultraphonic elliptical vibration and extrusion processing device based on double-excitation longitudinal bending elliptical energy converter

The invention discloses an ultraphonic elliptical vibration and extrusion processing device based on a double-excitation longitudinal bending elliptical energy converter, comprising a shell assembly, a vibration assembly, a sliding assembly and a pressure assembly, wherein the sliding assembly is sleeved on the excircle surface of the vibration assembly; the pressure assembly is arranged on the tail part of the vibration assembly; and the assembled vibration assembly, the sliding assembly and the pressure assembly are arranged in the shell assembly. The structure of the ultraphonic elliptical vibration and extrusion processing device is designed by combining a flexible extrusion requirement with a langevin energy converter principle, when the ultraphonic elliptical vibration and extrusion processing device is adopted to carry out extrusion processing, the double-excitation longitudinal bending elliptical energy converter of the ultraphonic elliptical vibration and extrusion processing device can drive a cutter to cautiously take longitudinal bending elliptical vibration, tracks of the longitudinal bending elliptical vibration are tangent with tracks of the turning motion of a workpiece and is reverse to the turning direction of the workpiece, when the turning speed of the longitudinal bending elliptical vibration is equal or approximately equal to the turning speed of the workpiece, the cutter is equivalent to make pure rolling on the surface of the workpiece so that relative sliding between the cutter and the processing surface disappears, and the mechanical abrasion caused by sliding friction is effectively prevented, and the purpose of prolonging the service life of the cutter is achieved.
Owner:BEIHANG UNIV

Numerical control supersonic machining apparatus for general lathe

InactiveCN101503755AReduce labor intensitySolve the problem that complex surfaces such as arcs cannot be processedAuxillary equipmentMechanical vibrations separationNumerical controlPatch panel
The invention provides a digital control ultrasonic processing device for a common lathe. The device comprises a pedestal, an intermediate guide rail, an upper support plate and a rotary tool rest, wherein the bottom surface of the pedestal is provided with a dovetail groove; the intermediate guide rail is arranged on the pedestal through a vertical guide rail; the upper support plate is arranged on the intermediate guide rail through a horizontal guide rail; an intermediate shaft is arranged inside the upper support plate; the rotary tool rest is arranged on the intermediate shaft; a patch panel and an electric brush panel are arranged between the rotary tool rest and the upper support plate; an electric brush is connected between the patch panel and the electric brush panel; a lead screw feeding mechanism is arranged on the intermediate guide rail and the upper support plate; a tool rest automatic tool change mechanism is arranged between the upper support plate and the rotary tool rest; a lathe tool, a round amplitude transformer and an external circular amplitude transformer are arranged on the rotary tool rest; and a processing tool bit is arranged on the two amplitude transformers and connected with an energy converter respectively. The digital control ultrasonic processing device for the common lathe has high efficiency and high processing precision and can complete turning, ultrasonic processing of the external circular face and ultrasonic processing of the crown face by clamping for one time.
Owner:SHANDONG HUAWIN ELECTRICAL & MECHANICAL TECH

Self-adaptive compensation method for detecting turning error of large part of rotary body

The invention discloses a self-adaptive compensation method for detecting the turning error of a large part of a rotary body, comprising the steps of: rough machining the part of the rotary body; measuring the radius of intersection of two adjacent contour line segments on an axial section of an inner hole of the part of the rotary body and en extent of error delta 1 of the radius of the two end points by a probe, performing semifinishing for the rough machined part of the rotary body, performing semifinishing for the semifinishing lathe tool by machining trajectory intersection and two end points with theoretical machining radius which is X1-delta 1/2, measuring the actual radiuses of the intersection (A) and two end points (A1) in the step 2) after semifinishing to obtain an extent of error delta1' of semifinishing; performing finish machining, wherein that finish machining lathe tool, the main shaft rotary speed of the tool and the feeding speed are identical to those of semifinishing. In the process of finish machining, a numerical control system of the lathe compensates the extent of error delta 1' of semifinishing. The invention solves the problem that in the machining process the machining error caused by tool wear exists, thereby greatly improving the machining precision of the large part of the rotary body.
Owner:HUBEI SANJIANG SPACE XIANFENG ELECTRONICS&INFORMATION CO LTD

Single-driven ultrasonic elliptical vibration turning device

The invention discloses a single-driven ultrasonic elliptical vibration turning device, comprising a shell unit, an ultrasonic vibration transducer, an elliptical vibration mode converter and a cutter, wherein the ultrasonic vibration transducer is arranged in the shell unit; the cutter is arranged on the front end of the elliptical vibration mode converter; the shell unit comprises an upper cover plate, a support plate, an external sleeve and a lower cover plate; the ultrasonic vibration transducer comprises a bolt, a rear cover plate, piezoelectric ceramic pieces, an electrode slice and a front cover plate; the rear cover plate, the piezoelectric ceramic pieces, the electrode slice and the front cover plate are sheathed on the bolt in sequence; the rear cover plate and the front cover plate enable the rear cover plate, the piezoelectric ceramic pieces, the electrode slice and the front cover plate to be linked and pressed through the bolt; the elliptical vibration mode converter is arranged on the front end of the front cover plate and is of an oblique wedge-shaped structure; the elliptical vibration mode converter can enable longitudinal ultrasonic vibration generated by the ultrasonic vibration transducer to be converted to the longitudinal-flexural composite ultrasonic elliptical vibration of the end of the elliptical vibration mode converter and the cutter.
Owner:SUZHOU UNIV OF SCI & TECH

Adjustment method of inner-profile radial floating tool rest and tool

The invention relates to an internal profile modeling tool apron which is used in a steel pipe flat-end-face chamfering device in a large-dimensional and straightly welded seam pipe production line and floats along the radial direction; the tool apron comprises a cutter head, of which the end face are symmetrically provided with four sliding base bodies along the radial direction; each sliding base body is provided with a floating tool apron by a connecting screw rod; a cutter is vertical to the side wall of a steel pipe and arranged on the outer end of the floating tool apron, namely, the end far from an axis; the rear part of the cutter is provided with screw threads which are connected with a cutter adjusting mechanism; the end faces and the middle part of the sliding base bodies are provided with a spring slots; a plurality of dish-shape springs are sheathed on the connecting screw rod and arranged in the spring slots; the outer end of the connecting screw rod is provided with a spring adjusting nut; floating stroke adjusting nuts are arranged on the connecting screw rod and at the inner end of the spring adjusting nut; a profile modeling rolling is arranged at the inner end of the floating tool apron and rolls against the interior wall of the steel pipe; the position of the cutter and the steel pipe wall are relatively fixed, thereby simultaneous penetration of four cutters on the cutter head, even turning, no easy collision of the cutters and high production efficiency are ensured. The invention also relates to an adjusting method of the cutters.
Owner:TIANSHUI METALFORMING MACHINE TOOL GROUP

High-frequency ultrasonic elliptical vibration cutting device

The invention discloses a high frequency ultrasound elliptic vibration cutting device which comprises an ultrasound vibration unit and a casing unit. The ultrasound vibration unit is arranged in the casing unit. The casing unit comprises a base, A cover plate, B cover plate and an upper cover plate. The ultrasound vibration unit comprises an amplitude transformer, a vibrating body, A excitation source, B excitation source and C excitation source. The amplitude transformer is installed on the vibrating body. The end part of the amplitude transformer is provided with a cutting tool. The A excitation source and the B excitation source are arranged in parallel way and are adhered on the lateral side of the vibrating body. The C excitation source is installed on the lower part of the vibrating body. The A excitation source and the B excitation source form the driving power in horizontal direction. The C excitation source forms the driving power in vertical direction. The phase separation between two mutually vertical high frequency vibrations is applied for compounding an elliptic vibration at the point of the cutting tool. Thus, the processing surface roughness is lowered effectively. The cutting device works at the high vibration frequency of 100 kHz-200 kHz, so that the vibration chipping critical speed of the cutting tool is improved, and the processing efficiency is improved obviously. The amplitude transformer is adopted to be inserted in the vibration body, so that the installation is easy, and the practicality of the ultrasound elliptic vibration cutting can be promoted.
Owner:BEIHANG UNIV

Integrated turning force measuring tool system with embedded film sensors

The invention relates to a turning force measuring technology in turning machining, in particular to an integrated turning force measuring tool system with embedded film sensors. The problems that anexisting turning force measuring technology is low in measuring precision and limited in application range are solved. The integrated turning force measuring tool system with the embedded film sensorscomprises a turning tool bar, a turning tool blade, a first sunk screw, square elastic substrates, the film sensors, a Wheatstone electrical bridge module, second sunk screws, a signal processing unit and a PC; the middles of the four side faces of the turning tool bar are each provided with a square positioning groove; a runway-shaped groove is formed in the center of the groove bottom of each square positioning groove; the four square elastic substrates are embedded into the four square positioning grooves respectively; and the four film sensors are arranged at the centers of the outer sidefaces of the four square elastic substrates in a magneto-sputtering deposition mode. The integrated turning force measuring tool system with the embedded film sensors is suitable for turning machining in various occasions (such as a laboratory and a production field).
Owner:ZHONGBEI UNIV

Off-resonance elliptical vibration cutting device

The invention relates to an off-resonance elliptical vibration cutting device, and belongs to the technical field of ultra-precision cutting and difficult-to-machine material cutting. A diamond cutter is fixedly connected with a cutter seat on the front portion of a base body through a fastening screw, and the tail ends of two piezoelectric stacks in the X direction are in contact with a lower wedge-shaped block. An upper wedge-shaped block and the lower wedge-shaped block are in contact to constitute a wedge-shaped block pre-tightening mechanism. A wedge-shaped block baffle is fixedly connected with a back plate of the base body through two fastening screws, a wedge-shaped block pre-tightening screw is in threaded connection with the wedge-shaped block baffle and is in butt joint with the upper wedge-shaped block. The free end of each piezoelectric stack is fixedly provided with a stainless steel spherical crown body, and the lower portion of the base body is connected with a wedge-shaped adjusting base through four fastening screws. The off-resonance elliptical vibration cutting device has the advantages that the best cutting performance of difficult-to-machine materials can be acquired, a driving part composed of the piezoelectric stacks and a flexible hinge is more compact in structure, the part, which achieves motion, of the cutter seat is smaller in size, a cutter can still achieve large displacement in the high-frequency cutting process, and the machining efficiency is guaranteed.
Owner:JILIN UNIV

Laser heating auxiliary micro-turning device and laser heating auxiliary micro-turning method

The invention relates to a laser heating auxiliary micro-turning fixture and a laser heating auxiliary micro-turning method and belongs to the field of auxiliary processing of machine tools, and the device and the method are used for solving the problems of poor processed surface quality, tool abrasion and tool breakage existing in the prior art. The device comprises a rotary sliding table, a translation sliding table, a laser and a clamp, wherein the translation sliding table is fixedly arranged on a Y-directional sliding table; the rotary sliding table is fixedly arranged on the translation sliding table; the laser is fixedly arranged on the rotary sliding table by virtue of the clamp; the axis of a gun head of the laser and a vertical surface in which the tool tip of a tool of a machine tool is located are coplanar. According to the method, rays of the laser are applied to the front end of a micro tool tip, and local preheating for a to-be-processed workpiece by virtue of lasers is realized. The laser and the micro-turning device are combined for preheating the to-be-processed workpiece, so that the micro-turning for a difficult-to-process material is realized, the quality and size precision of a processed surface are ensured, the cutting force is reduced, and phenomena of serious tool abrasion and tool breakage substantial results are improved; a camera is used for monitoring in real time, so that the precise and reliable micro diameter of a laser spot can be ensured.
Owner:CHANGCHUN UNIV OF SCI & TECH

Precise positioning and clamping device for stepped thin-wall barrel

The invention discloses a precise positioning and clamping device for a stepped thin-wall barrel, belongs to the technical field of technological equipment and is mainly suitable for precisely positioning and clamping the thin-wall barrel when performing machine finishing on stepped thin-wall barrel parts. The main technical characteristics of the device is that the device comprises a main taper shaft 1, a fixed cone 2, an anti-rotation pin 3, a stop screw 4, a two-way step expansion spring 5, a spring 6, a movable cone 7, a guide pin 8, a waist-shaped hole 9, a fastening nut 10 and a turning handle 11, wherein the outer cylindrical surface of the two-way step expansion spring 5 is provided with steps according to the step size and the step position of the stepped thin-wall barrel to be processed; a guide groove at one large-diameter end of the two-way step expansion spring 5 is aligned with and inserted into the anti-rotation pin 3; and the left conical surface of the two-way step expansion spring 5 is jointed with the conical surface of the fixed cone 2. The device can meet the high-accuracy processing requirements on uniform wall thickness difference and high coaxiality between inner and outer circles on a variable-diameter cylindrical thin-wall member, and has the characteristics of convenient installation and operation, reliable use and the like.
Owner:JIANGNAN MACHINERY GROUP CO LTD
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