32results about How to "Improve turning accuracy" patented technology

The invention discloses an intelligent-compensating anti-vibration lathe tool. The intelligent-compensating anti-vibration lathe tool comprises a cutter body and a cutter head which are independent from each other, wherein an inner cavity is arranged in the cutter body; and the rear end of the cutter head horizontally extends into the inner cavity. The intelligent-compensating anti-vibration lathe tool is characterized in that at least four groups of two-way flexible hinges are fixedly arranged between the two sides of the rear end of the cutter head and the cavity wall of the inner wall, wherein all two-way flexible hinges are symmetrically arranged along the axial center line of the cutter head; and a piezoelectric ceramic driver group which is arranged in the form of a square array is arranged between the rear-end end surface of the cutter head and the cavity wall of the inner wall. The intelligent-compensating anti-vibration lathe tool has the advantages that the cutter head of the lathe tool is controlled to carry out corresponding position compensating in a radial direction of a workpiece by monitoring changes of turning force, so that changes of a turning thickness are within a stable turning range, and regenerated type turning vibration is avoided; the cutter head rotates by a slight angle to carry out multi-direction position compensating to meet needs of different turning occasions; the turning precision and the surface processing quality of products are improved; and the anti-vibration lathe tool is simple in structure, is convenient to operate, and is flexible and variable in use.

The invention discloses a floating fixture and a method for processing inner and outer rings of a single-row tapered roller bearing. The floating fixture comprises a three-jaw chuck, three jaws, jaw clamping bodies, a floating connecting rod, and six clamping jaws. The three jaws are correspondingly connected with the three-jaw chuck. The number of the jaw clamping bodies is three. The three jaw clamping bodies are arranged respectively corresponding to the three jaws. The jaw clamping bodies are correspondingly connected with the three jaws through the floating connecting rod. Limiting screws are also connected between the jaw clamping bodies and the three jaws. The number of the limiting screws is two. The two limiting screws are respectively symmetrically arranged on two sides of the floating connecting rod. Each jaw clamping body is meshed and connected with the two clamping jaws through teeth. The three jaws and the jaw clamping bodies are connected through the floating connecting rod, and the limiting screws are connected between the jaw clamping bodies and the three jaws. Through the floating connecting rod, the limiting screws play certain up-down floating roles in a clamping process. In turning bearing forging, the fixture improves turning precision, and shortens a turnery process of the inner and outer rings of a single-row tapered roller bearing.

The invention discloses a bearing ring clamp. The bearing ring clamp comprises a base, wherein a mounting groove allowing a first bearing to be fixedly arranged is formed in the center of the top endof the base, a shaft rod is movably connected into the first bearing, and a movable seat is fixedly welded to the end, away from the base, of the shaft rod; the top end of the base and the bottom endof the movable seat are provided with annular grooves allowing rollers to slide, the top end of the movable seat is provided with two sets of rectangular sliding grooves allowing rectangular sliding blocks to slide in an annular array, the top end of the movable seat is provided with two sets of rectangular grooves in an annular array, and the top ends of the rectangular sliding blocks are fixedlyconnected with L-shaped fixing parts; and a threaded hole is formed in the center of one side of the top end of each L-shaped fixing part. According to the bearing ring clamp, the situation that a bearing ring is clamped from the outer edge face is avoided, deformation of the bearing ring is avoided, the turning precision is improved, the practicability is high, rotation can be conducted, time and labor are saved when workers fix the bearing ring, and the installation speed is improved.

The invention relates to a turning clamp for a blind flange, and relates to the technical field of metal machining equipment. The turning clamp for the blind flange comprises a base plate, a first pressing mechanism and a second pressing mechanism, wherein the first pressing mechanism comprises a tailstock and a tail cone; the tail cone is rotatably connected onto the tailstock; the tail cone and the base plate are coaxially arranged; the base plate is coaxially and fixedly connected onto a main shaft of a lathe; the second pressing mechanism comprises a clamping jaw; and the clamping jaw is connected onto the base plate in a sliding mode. According to the turning clamp for the blind flange provided by the invention, when the peripheral face of a workblank is machined, the base plate and the tail cone are used for clamping the workblank, so that the peripheral face of the workblank can be completely exposed outside; and when a boss of theworkblank is machined, the workblank is clamped by the base plate and the clamping jaw, so that the axis part of the workblank can be completely exposed outside, and feeding of a turning tool is facilitated.

The invention discloses a turning tool for machining regular polygonal inner holes, which includes a lathe, the lathe has a chuck and a tool rest arranged oppositely; It has a circular bottom hole inscribed in the designed regular polygonal inner hole, and a guide block with a linear guide hole is provided on the chuck; a knife feed mechanism is fixed on the knife holder, and the knife mechanism includes a fixed component, a rotating component, Shift assembly and conversion assembly, the circumferential rotation of the chuck is transmitted to the cam plate through the lever of the rotation assembly, and then the cam plate converts the circumferential rotation displacement into the linear displacement of the translation assembly through the conversion assembly, and the linear displacement of the translation assembly The displacement tool rod drives the tool to realize the cutting process of the regular polygon inner hole on the bottom hole on the workpiece. The invention has the characteristics of high processing precision, easy processing process, high processing efficiency, light labor intensity, low processing cost, etc., and is reliable and practical.

The invention discloses an intelligent-compensating anti-vibration lathe tool. The intelligent-compensating anti-vibration lathe tool comprises a cutter body and a cutter head which are independent from each other, wherein an inner cavity is arranged in the cutter body; and the rear end of the cutter head horizontally extends into the inner cavity. The intelligent-compensating anti-vibration lathe tool is characterized in that at least four groups of two-way flexible hinges are fixedly arranged between the two sides of the rear end of the cutter head and the cavity wall of the inner wall, wherein all two-way flexible hinges are symmetrically arranged along the axial center line of the cutter head; and a piezoelectric ceramic driver group which is arranged in the form of a square array is arranged between the rear-end end surface of the cutter head and the cavity wall of the inner wall. The intelligent-compensating anti-vibration lathe tool has the advantages that the cutter head of the lathe tool is controlled to carry out corresponding position compensating in a radial direction of a workpiece by monitoring changes of turning force, so that changes of a turning thickness are within a stable turning range, and regenerated type turning vibration is avoided; the cutter head rotates by a slight angle to carry out multi-direction position compensating to meet needs of different turning occasions; the turning precision and the surface processing quality of products are improved; and the anti-vibration lathe tool is simple in structure, is convenient to operate, and is flexible and variable in use.

The invention discloses a processing device and method for ring sleeve parts. The device includes a support shaft coaxially rotating with the main shaft of a machine tool, and an inner expansion fixture arranged at the end of the support shaft. The inner expansion fixture is used for clamping parts. On the wall of the inner hole, a positioning mechanism is installed on the supporting shaft in a movably connected manner, which can be used to position the inner end surface of the supporting part. The method includes: step 1, clamping the workpiece on the lathe: firstly send the internal expansion fixture into the inner hole of the part through the end surface I, and clamp and fix the part on the machine tool in the way of internal support, and then put the positioning mechanism against the On the end face Ⅰ; step 2: process the outer circular surface and end face Ⅱ of the part; step 3: move the positioning mechanism away to leave a processing space at the position of the end face Ⅰ; step 4: change the tool of the machine tool, and process the end face Ⅰ of the part. The beneficial effect of the invention is that the machining of the two end surfaces, the outer circular surface and part of the inner circular surface of the part can be completed by only one clamping, and the machining accuracy is high.

The invention relates to the field of hollow hemisphere production devices, and discloses a hollow hemisphere plane turning device. The hollow hemisphere plane turning device comprises a lathe body, wherein a clamp and a cutting mechanism are sequentially arranged on the lathe body from left to right horizontally, an automatic feeding mechanism and a positioning mechanism are further arranged on the lathe body, the automatic feeding mechanism comprises a feeding device and a clamping device, the feeding device is used for conveying hollow hemispheres to the clamping device, the clamping deviceis used for clamping the hollow hemispheres to the clamp, and the positioning mechanism is used for accurately clamping the hollow hemispheres in the clamp. According to the hollow hemisphere plane turning device, workpieces can be clamped and aligned through simple operation, the turning precision is high, and the working efficiency is high.

The invention discloses a herringbone gear machining device. The herringbone gear machining device comprises a main lathe bed, a tooth milling stand column, a tooth milling blade, a workbench, a vertical lathe bed, a vertical lathe stand column and a turning blade, wherein the tooth milling blade is arranged on the tooth milling stand column in a sliding manner in the axial direction of the toothmilling stand column through a tooth milling tool rest, the workbench is rotationally arranged on the other side of the axial direction of the main lathe bed, the turning blade is arranged in a hollowstructure of the vertical lathe stand column in a sliding manner in the axial direction of the vertical lathe stand column, turning and milling share one rotation workbench, and a herringbone gear can be machined with high precision. The invention discloses a turning method for the herringbone gear machining device. The turning rotation speed, the cutting feed distance and the turning time of a workpiece are controlled on the basis of the BP neural network, and the turning precision is high. The invention further discloses a milling method for the herringbone gear machining device, the rotation speed of the workbench, the axial motion speed of the gear milling blade and the forward and reverse rotation time of the workbench can be accurately controlled, and the herringbone gear machiningprecision is improved.

The application relates to a turning fixture for a flanged blind plate, and relates to the technical field of metal processing equipment. It includes a base plate, a first pressing mechanism and a second pressing mechanism. The vertebra is rotatably connected to the tailstock, the tail vertebra is coaxially arranged with the base plate, the base plate is coaxially fixedly connected to the main shaft of the lathe, and the second pressing mechanism includes a clamping claw which is slidably connected to the base plate. In this application, when processing the outer peripheral surface of the blank, the base plate and the tail cone are used to clamp the blank, so that the outer peripheral surface of the blank is completely exposed; when processing the boss of the blank, the base plate and the clamping jaw are used to clamp the blank. In this way, the axial part of the blank part will be completely exposed, which is convenient for the feeding of the turning tool.

The invention provides a precision excircle turning clamp for a thin-wall flange. The precision excircle turning clamp comprises a chuck mounted on a machine tool, and a plurality of clamp bodies which are annularly arrayed along the axial direction of the chuck and are fixed on the chuck through threaded fasteners, wherein each clamp body comprises a clamping block with one end fixed on the chuck through the corresponding threaded fastener and the other end being an arc curved surface, and two pressing plates which are respectively located on two sides of the corresponding clamping block and are fixed on the clamping block through the threaded fasteners. According to the precision excircle turning clamp, provided by the invention, for the thin-wall flange, the thin-wall flange is circumferentially located by the clamping blocks mounted on the chuck and radially located by the pressing plates mounted on the clamping blocks, and the clamping blocks and the thin-wall flange as well as the pressing plates and the thin-wall flange are both in surface contact, so that the thin-wall flange can be located more precisely, and the turning accuracy is higher.

The invention discloses a non-circular cutting device for a numerically controlled lathe, which comprises a cutter head, a cutter holder fixed with cutters, a displacement sensor, a main shaft coder, an actuator, and a controller, wherein the main shaft coder is arranged on a main shaft motor of the numerically controlled lathe. The non-circular cutting device is characterized in that the cutter head is provided with a first cavity and a second cavity which are communicated with each other, a flexible hinge structure is arranged in the first cavity integrally, the front end part of the flexible hinge structure is integrally provided with a permanent seat of the cutter holder, the cutter holder is fixedly arranged on the permanent seat of the cutter holder, the actuator is fixedly arranged in the second cavity, the end part of the actuator leans against the rear end face of the flexible hinge structure, the main shaft coder and the displacement sensor are both electrically connected with the controller, and the controller is electrically connected with the actuator. The non-circular cutting device has the advantages that the cutter head has the functions of micro positioning and precision cutting vibration control to realize micro feeding movements of the cutters in a non-circular precise cutting system, the cutting vibration in axial and tangential directions of a workpiece can be controlled effectively, and the turning precision of non-circular cutting is improved.

The invention relates to the technical field of machining, and provides a target component and a processing method. The target component comprises a target and a backing plate used for bearing the target, wherein the surface of the target comprises a front side, a back side and sides, and the front side of the target is the sputtering surface of the target; and the back side of the target is opposite to the front side of the target, and the sides of the target are adjacent to the front side and the back side of the target separately. Meanwhile, the back side of the target is connected to the front side of the backing plate, and the sides of the target are adjacent to the front side of the backing plate; and the junction positions between the sides of the target and the front side of the backing plate are provided with sand blasting areas formed through sand blasting treatment and surrounding the sputtering surface, and the distances between the points of the same sand blasting line ofthe sand blasting areas and the center point of the sputtering surface are the same, wherein the sand blasting lines are the boundary lines of the sand blasting areas. The sand blasting areas of the target component have tidy sand blasting lines, so that abnormal sputtering is not generated in the sputtering process of the target, and semiconductor chips can be produced smoothly.

The invention provides a manufacturing method for thin-wall bearing and a method for machining a thin-wall inner ring / outer ring as well as a precision flexible bearing. The method for machining the thin-wall inner ring / outer ring comprises the following steps of: S0, providing a thin-wall ring with machining allowance left; S1: reinforcing along the radial direction and / or axial direction of the thin-wall ring; S2: carrying out quenching-tempering heat treatment on the reinforcing ring obtained by reinforcement in the S1; S3: carrying out corresponding grinding, hard cutting and super finishing on the reinforcing ring after receiving heat treatment, which includes removal of the machining allowance and a reinforcing part obtained by reinforcement in the S1, thereby obtaining finished thin-wall ring product. The thin-wall ring reinforced machining method substantially reduces and even avoids deformation of the thin-wall ring in all manufacturing links, thereby obtaining very high machining precision. The precision thin-wall bearing and the precision flexible bearing can be manufactured by fitting of the precision thin-wall ring and a precision rolling body.

The invention relates to the technical field of machining, and provides a target module and a machining method. The target module comprises a target and a back plate for bearing the target. The surface of the target comprises a front surface and a back surface; the front surface of the target is a sputtering surface of the target; the back surface of the target is opposite to the front surface ofthe target; a first step is projected on the back surface of the target; and the side surface of the first step is an inclined surface. A first groove matched with the first step is formed in the front surface of the back plate; the back surface of the target and the front surface of the back plate are connected through dispersion welding; and the first step is embedded in the first groove. In thedispersion welding process, the back surface of the target is tightly bonded with the front surface of the back plate; and a finally molded target module generates no welding line in the joint position of the two, so that the sputtering performance of the target can be improved, meanwhile, the problem related to the welding line cannot occur in subsequent machining process of the target module, and the quality of the produced target module is improved.