43results about How to "Solve the problem of low machining accuracy" patented technology

The invention discloses a hourglass worm processing machine tool with on-line detection and correction processing functions. The hourglass worm processing machine tool comprises a machine tool body, wherein a spindle unit and a processing unit are arranged on the machine tool body; the spindle unit comprises a driving centre and a tailstock centre, which are used for ejecting and holding a hourglass worm to be processed; the processing unit is used for processing the tooth surface of the hourglass worm; the hourglass worm processing machine tool further comprises a detection unit and a control unit, so that on-line detection and correction processing are realized during the processing process of the tooth surface of the hourglass worm, and the problem of low processing precision of the tooth surface of the hourglass worm is solved basically.

The invention belongs to the field of workpiece machining and discloses a T-shaped workpiece machining fixture. The T-shaped workpiece machining fixture comprises a fixture body. The fixture body comprises a bottom plate, a top plate and a right side plate. The top plate is parallel to the bottom plate. The two ends of the right side plate are connected with the top plate and the bottom plate respectively. The top plate is provided with a first clamping shaft and a machining hole. The first clamping shaft is in threaded connection with the top plate. The first clamping shaft is perpendicular to the top plate. The right side plate is provided with springs. One ends of the springs are fixedly connected with the right side plate. The other ends of the springs are connected with a clamping block which is in sliding connection with the bottom plate. The bottom plate is provided with an auxiliary block which is a strip-shaped block and fixed to the bottom plate. The auxiliary block is perpendicular to the bottom plate and provided with a second clamping shaft which is perpendicular to the auxiliary block, and the second clamping shaft and the auxiliary block are in threaded connection. According to the T-shaped workpiece machining fixture, the punching precision of a T-shaped workpiece can be greatly improved, and the T-shaped workpiece machining fixture is worth using and popularization.

An embodiment of the invention discloses a curved-surface light focusing reflector, a curved-surface light focusing reflector machining system, a curved-surface light focusing reflector set and a preparation method thereof. A traditional mold is not depended in a process for preparing the curved-surface light focusing reflector. According to different light focusing distances of actual projects, acurved surface radian which makes the current curved-surface light focusing reflector reach a required optimal light focusing effect of a user is calculated. By means of cutting of a numerical control machining tool, a curved-surface radian bearing structure is obtained. Finally a reflecting layer with preset hardness uses the bearing structure as a similar mold for performing fixation and applying is fixedly adhered, thereby preparing the curved-surface light focusing reflector. The curved-surface light focusing reflector is obtained through splicing a plurality of sub-mirrors. The curved surface radian of each sub-mirror is obtained through performing distribution calculation on the integral curved-surface radian of the curved-surface light focusing reflector set according to the splicing position of each sub lens in the lens set. The curved-surface light focusing reflector can be applied in a tower type solar energy power generation heliostat, thereby effectively improving solar heat utilization efficiency and furthermore improving solar heat power generation efficiency.

The invention discloses a processing method and processing system for cracking carya cathayensis fruit shells. The system includes a shell cracking device and a main control device; the shell crackingdevice includes a feeding hopper, a shell cracking rolling wheel, a sensing device and a pneumatic shell cracking hammer; the main control device conveys the carya cathayensis fruits fed into the feeding hopper to the shell cracking roll wheel and controls the vertical reciprocating motion of the pneumatic shell cracking hammer to crack the shells of the carya cathayensis fruits; the main controldevice is connected with the pneumatic shell cracking hammer to acquire the deformation amount of the carya cathayensis fruits detected by the sensing device; and the sensing device is arranged on the pneumatic shell cracking hammer, and the sensing device is connected with the main control device. The main control device determines that the pneumatic shell cracking hammer completes the processing of the shell cracking of the carya cathayensis fruits when the deformation amount is greater than or equal to a preset compression amount, and controls the pneumatic shell cracking hammer to reset to an initial state, so that the problem of low processing accuracy in the processing process of the shell cracking of the carya cathayensis fruits is solved.

The invention discloses a processing method suitable for stepped shafts, which comprises the following steps: A: select a 45 steel forging, process the 45 steel forging into a bar, and heat-treat the bar; B: heat-treat the bar Clamp the clamped bar, correct the clamped bar, and ensure that the bar is clamped; C: Then rough turn the left and right end faces of the bar, turn the left end face into a cylinder, and ensure that the right end face remains There is a length of 1mm, and then drill a center hole on the right end face; D: Hold the center hole, and turn three sections of outer circles with different sizes from the left end to the right end face; Turning; E: Then, the three outer circles after finishing turning in step D are polished; the present invention solves the problems of too low rigidity of the existing stepped shaft and low machining accuracy.

The invention provides an electrosparking device, system and method. The electrosparking device comprises an electrosparking machine tool, a workpiece locating device and a workpiece detector. The electrosparking machine tool is provided with a tray fixing mechanism which is located below a machining electrode and used for fixing a tray bearing a workpiece. The workpiece locating device and the electrosparking machine tool are separated. The workpiece locating device is used for locating the workpiece on the tray. The workpiece detector is used for detecting position information of the workpiece relative to the tray. A control device is arranged on the electrosparking machine tool, can obtain the position information and controls the machining electrode to machine the workpiece according to the position information and the machining programme of the workpiece. Through implementation of the electrosparking device, system and method, the problems that in the workpiece machining process of an existing electrosparking device, a meter is directly pulled for a workpiece on an electrosparking machine tool to look for the machining datum point, and machining precision is low are solved.

The invention discloses a high-precision hob rake angle grinder. The high-precision hob rake angle grinder includes a main body, and a base and a lathe body which are arranged on the main body; the lathe body is provided with a control mechanism, a hob cutter grinding mechanism, a first sliding pair, a second sliding pair and a workbench surface, and the control mechanism is electrically connectedwith the hob cutter grinding mechanism, the first sliding pair and the second sliding pair; the control mechanism includes a control box disposed at one end of the lathe body, a liquid crystal display screen disposed on the control box, and an operation panel disposed below the liquid crystal display screen; the hob cutter grinding mechanism includes an index head disposed inside the lathe body,a mandrel connected with the index head, the base, and a stand column disposed on the base; and a grinding motor is disposed on the stand column, and a grinding wheel is disposed on the grinding motor. According to the high-precision hob rake angle grinder, the feed in the vertical direction of the grinding wheel is carried out by a lifting cylinder, so that the problem that existing rake angle grinders are low in machining precision is effectively solved, and the advantages of simple structure, convenient use, and good use effect are achieved.

The invention discloses a gear inner ring interference fit tool clamp. The clamp comprises a rotating shaft seat, a chuck and a pull rod. The chuck and the rotating shaft seat are coaxially and rotatably connected, and three clamping jaws are evenly distributed on the circumference of the chuck; the outer circumferential faces of the clamping jaws are in interference fit with the inner ring of a machined gear, and the pull rod pushes and pulls the center of the chuck to move in the axial direction of the centre of the chuck; and positioning blocks are arranged on the sides of the clamping jaws of the chuck. According to the gear inner ring interference fit tool clamp, the problems that in the prior art, a gear penetrates a mandrel, so that the gear inner ring and the mandrel do not share the central axis, and the gear machining precision is low are solved.

The invention relates to a special clamp for machining a triangular pyramid. The special clamp comprises a base, a positioning index plate, a clamping block, a positioning pin and bolts, wherein the base is fixedly arranged on a machine tool work bench; the positioning index plate is connected with a workpiece blank through the bolts; the positioning index plate is attached to a positioning surface on the base; a stepped shaft on the positioning index plate is arranged in a positioning index plate mounting hole in the base; and the rotational degree of freedom of the positioning index plate is limited through the positioning pin inserted in a positioning hole in the base and a positioning hole in the positioning index plate; the clamping block is connected with the base through the bolts; and the axial degree of freedom of the positioning index plate is limited by the clamping block pressing the positioning index plate so that the whole workpiece is fixed. The special clamp is reasonable in structure and convenient to disassemble, thus effectively solving the problems that the triangular pyramid is difficult to clamp, low in machining accuracy and the like when being machined.

The invention discloses a machining method for an eccentric crescent cylindrical mirror. The method comprises the steps that blank and cushion material taking is conducted, and a blank and cushion materials are bonded through wax; concave face milling grinding, fine grinding and polishing are conducted; the blank and the cushion materials are heated to be separated, and the blank and new cushion materials are bonded again through wax; convex face milling grinding, fine grinding and polishing are conducted; and heating is conducted, a product is taken out, and the eccentric crescent cylindrical mirror can be obtained. According to the machining method, through strict control over the cushion material size and the center thickness and eccentric volume of the cylinder face obtained after fine grinding, and accordingly the high-precision eccentric crescent cylindrical mirror can be machined. Through the manner that the cushion materials are bonded and fed to discs to be machined, the machining difficulty and detection difficulty are effectively lowered, and the machining efficiency and the product qualification rate are improved; and the beneficial effects that the technology is simple, and operation is convenient are achieved.

The invention discloses an anti-cutter-collision numerical control machine tool. The machine tool comprises a machine tool body, an x-axis motor, an x-axis lead screw, a y-axis lead screw, a y-axis motor, a z-axis sliding rail, a z-axis lead screw, a fixing frame, a fourth motor, a shell, a clamp, a collecting cart and an anti-cutter-collision device. In the debugging feeding process of a clamp built-in milling cutter, the milling cutter accidentally collides with a supporting plate, under the effect of spring force, the supporting plate slides downwards to provide buffer for the clamp built-in milling cutter, the phenomenon that the clamp built-in milling cutter is in direct collision, and the clamp built-in milling cutter is broken and damaged is avoided, after numerical control programdebugging is completed, a fifth motor is started to rotate forwards to enable a fourth lead screw to move upwards, and a connecting block at the top end is attached to the bottom end face of a limiting block to fix a top end supporting plate, in the deep hole machining process of a workpiece, due to the fact that the workpiece sinks under the action of the spring force, buffering of the spring forthe workpiece causes workpiece precision errors, the supporting plate is fixed through the device, and the workpiece machining errors are prevented from being affected by the action of the spring force in the machining process.

The invention discloses a high-speed clamping, transporting and locating system for workpieces. The system includes a clamping structure, a guide structure and a mounting bracket, wherein the clamping structure comprises an upper clamping arm and a lower clamping arm, the upper clamping arm of the clamping structure is movably connected with the guide structure, the lower clamping arm of the clamping structure is fixedly connected with the guide structure that is movably connected with the mounting bracket, a floating clamp is arranged on the lower clamping arm, and the guide structure is movably connected with the mounting bracket through two sliding rails. According to the high-speed clamping, transporting and locating system for workpieces, by the adoption of the clamping structure provided with the floating clamp and the coordination of the guide structure that is movably connected with the mounting bracket through two sliding rails, the high-speed clamping, transporting and locating system for workpieces clamps and precisely moves a workpiece on a work surface, and the workpiece are firmly arranged on a preset position of the work surface. The system solves the problem of low processing accuracy resulting form inaccurate locating and shaking of the workpiece during processing, and reduces the rejection rate of products and improves the efficiency of furniture manufacture.

The invention discloses a conveying device for hinge conveying. The conveying device comprises a workbench, supporting legs are fixedly connected with the bottom of the workbench, a mounting frame isfixedly connected with the top of the workbench, a machining device is fixedly connected with the top end of the interior of the mounting frame, first hydraulic rods are arranged on the outer side ofthe machining device, the number of the first hydraulic rods is two, and the tops of the two first hydraulic rods are fixedly connected with the top end of the interior of the mounting frame; and thebottoms of the two first hydraulic rods are fixedly connected with a fixing plate, and one side of the fixing plate is fixedly connected with a first laser line marker. Through the designed second laser line marker and the designed third laser line marker, after a hinge on the top of a conveying belt deviates, a second hydraulic rod, a first deviation rectifying plate, a third hydraulic rod and asecond deviation rectifying plate are controlled to rectify deviation of the hinge, so that the precision of the hinge is prevented from being influenced, and the problem that an existing device is low in machining precision is solved.

The invention discloses novel grinding and drilling integrated equipment comprising a tabletop, a cylinder, a column, an electric drill, a grinding table, connecting rods, a boss, a fixed table and fixed rods. The integrated equipment is characterized in that the upper surface of the tabletop is provided with stop plates of which the middle parts are provided with studs, and the tail end of each stud is provided with a stop block; the tabletop is provided with the boss, and sliding chutes are formed beside the boss, and provided with screw rods connected to the column; the column is provided with the fixed table connected to a cross rod, and the cross rod is provided with the cylinder connected to the electric drill and the grinding table; and the grinding table and the electric drill areconnected to the cross rod through the connecting rods, and brackets are arranged under the tabletop, and connected by the five fixed rods. The integrated equipment has the beneficial effects that theproblem of low machining accuracy of workpieces is solved, and the working efficiency is improved; and the machining time is saved, and the production cost is reduced.

The invention discloses a method for preparing a specific conductive metal pattern on the surface of a polyimide film, which sequentially comprises the following steps of: (1) performing exposure treatment on a photosensitive polyamide acid film, and immersing the photosensitive polyamide acid film into an organic solution containing a chemical plating catalyst to perform exposure region development, (2) carrying out imidization reaction on the developed photosensitive polyamide acid film to prepare a polyimide film material, and (3) carrying out chemical plating treatment on the polyimide film to prepare the polyimide film material containing the specific conductive metal pattern on the surface. According to the preparation method provided by the invention, the catalyst required by chemical plating can be efficiently deposited on the surface of the photosensitive polyamide acid thin film, synchronous thermal activation is achieved along with the thermal imidization process of the photosensitive polyamide acid thin film, and the imidized thin film can be directly subjected to subsequent metal plating patterning by adopting a chemical plating method. The method is used for continuous and efficient industrial production of polyimide electronic circuit materials.

The invention provides a vibration reduction device and a machine tool. The vibration reduction device comprises: a shell, wherein a first sealing cavity is formed in the shell, the interior of the first sealing cavity is used for containing magnetorheological fluid, and one end of the shell is connected with a first connecting plate; a moving part, wherein at least part of the moving part is arranged in the first sealing cavity, the first end of the moving part penetrates out of the first connecting plate, the first end of the moving part and the first connecting plate are arranged in a sealed mode, and a wire hole is formed in the shell and surrounds the first sealing cavity, so that a magnetic field is formed in the first sealing cavity by electrifying a wire in the wire hole, wherein the moving part is movably arranged in the preset direction relative to the shell. The magnetorheological fluid can be converted into a semi-solid from a freely flowing liquid under the action of an external magnetic field, and when the moving part is stressed to move, damping force generated by the magnetorheological fluid can partially counteract impact force caused by vibration, so that the vibration reduction effect of the machine tool is improved, and the problem that in the prior art, the machining precision of the machine tool is low is solved.