94results about How to "Reduce clamping errors" patented technology

The invention relates to a fixture, particularly to a lathe turnover fixture. According to the technical scheme provided by the invention, the lathe turnover fixture comprises a fixture body; a first bearing is arranged at one end of the fixture body, a rectangular block is arranged at the other end of the fixture body, a second bearing is positioned in the rectangular block, a turnover plate body is arranged between the first bearing and the second bearing, a positioning block is arranged at one end of the turnover plate body, a workpiece clamping seat is arranged at the other end of the turnover plate body, and a clamping guide screw is arranged on the workpiece clamping seat; and a positioning groove is arranged on the fixture body, a sliding key block is arranged in the positioning groove, a sliding handle is arranged on the sliding key block, the sliding handle penetrates through the sliding key block and is fixedly connected with a rotating sliding block, the rotating sliding block and the rotating sliding block are in sliding contact, a guide rail is arranged at one end of the rotating sliding block, a rotating rod is arranged on the guide rail, a push rod is arranged between the rotating rod and the rectangular block, a push rod spring is arranged on the push rod, a spring seat is arranged at the end part of the push rod spring, and the spring seat is fixedly connected with the fixture body. The lathe turnover fixture has simple structure, convenient operation, capability of processing both surfaces of workpieces and high processing efficiency.

Disclosed is an overall manufacturing method for a large-size thin-walled annular belt type oxygen-enhancing frame. The overall manufacturing method comprises the following steps that a special substrate for laser melting deposition is designed; up-and-down segmentation is carried out along the wall thickness sudden changing portion of the oxygen-enhancing frame; a lower-segment part is formed byselecting a large-power large-scanning-speed laser melting deposition process parameter and a corresponding scanning strategy; laser machining program codes of all slice layers of the upper and lowersegments are obtained by utilizing slice software and are introduced into equipment to carry out laser melting deposition forming of the lower-segment portion first; stress relieving annealing is carried out after outward taking; then the lower segment end surface is taken as a substrate to complete deposition of the upper-segment portion, and heat treatment and machining are carried out to obtaina part under a final state. The overall manufacturing method solves the problems that a current forging and machining method is long in machining period, low in material utilization ratio and severein stress deformation, and the high-performance, small-deformation and small-allowance forming of the oxygen-enhancing frame part is realized.

The present invention relates to the technical field of circuit breaker production, and discloses a contact synchronous belt conveying device of circuit breaker assembling equipment and a method. Thecontact synchronous belt conveying device of the circuit breaker assembling equipment comprises a synchronous belt support, a synchronous belt motor, a synchronous belt driving shaft and a synchronousbelt driven shaft. The contact synchronous belt conveying device of the circuit breaker assembling equipment and the method have the advantages of improving the conveying efficiency of the synchronous belt, saving equipment space and improving the overall processing efficiency.

The invention discloses a thin-walled rotating member flange face drilling and milling fixture. The thin-walled rotating member flange face drilling and milling fixture comprises a base, a plurality of support rods mounted on the base and a support ring mounted on the top ends of the multiple support rods. A self-adaptive height-adjusting structure for adjusting the supporting height and maintaining the height is arranged between the support ring and the support rods, so that the top surface of the support ring is tightly attached to the lower bottom surface of a ring flange of a thin-walled rotating member. The base is provided with a limiting structure for limiting the lower end position of the thin-walled rotating member, and the support ring is provided with an avoiding groove corresponding to a flange face notch to be processed of the thin-walled rotating member and die holes corresponding to hole series to be processed of the flange surface. The thin-walled rotating member flangeface drilling and milling fixture can design a reasonable fixture structure according to the processing characteristics of the flange face, and the operation of processing personnel is facilitated.

The invention discloses a blade processing machine tool integrating processing and detecting functions. The blade processing machine tool comprises a machine tool processing unit, an automatic feeding-discharging unit and an automatic detecting unit, wherein the machine tool processing unit structurally comprises a base; a longitudinal sliding rail and a transverse sliding rail are arranged on thebase; a workbench is arranged on the transverse sliding rail of the base; a horizontal rotating table is arranged on the workbench in the longitudinal direction; a sliding seat is arranged on the longitudinal sliding rail of the base; a vertical column is fixedly connected onto the sliding seat; a sliding plate is slidably arranged on the vertical column in the vertical direction; a support is fixedly mounted on the sliding plate; an electric spindle is mounted in the support through a double-joint mechanism; and a cutter is mounted at the front end of the electric spindle. The blade processing machine tool disclosed by the invention has the beneficial effects that through the double-station processing operation, the multi-procedure processing of workpieces under the condition of one-timeclamping can be achieved; not only can the processing efficiency be improved, but also the processing precision can be guaranteed; and the automatic feeding-discharging and the on-machine detecting of the workpieces can be achieved.

The invention provides a combined tool for a thrust chamber preparation process and the thrust chamber preparation process. The combined tool comprises a spray pipe section tool body and a body section tool body; the spray pipe section tool body comprises a spray pipe positioning assembly, a pressing ring assembly and a short shaft assembly; the body section tool body comprises a body shaft assembly, a pressing block assembly and a force transmission assembly; in a spray pipe short shaft state, the spray pipe positioning assembly, the pressing ring assembly and the short shaft assembly cooperate for use, and thus a thrust chamber spray pipe is positioned and clamped; in a body shaft state, the body shaft assembly, the pressing block assembly and the force transmission assembly cooperate for use, and a thrust chamber body is positioned and clamped; and in a spray pipe short shaft state, the spray pipe positioning assembly, the pressing ring assembly, the body shaft assembly, the pressing block assembly and the force transmission assembly cooperate for use, and thus the thrust chamber body and the thrust chamber spray pipe are positioned and clamped in a whole. By means of the combined tool for the thrust chamber preparation process and the thrust chamber preparation process, the number of single tools can be greatly reduced, floor occupation and management of multiple single tools are reduced, and the production cost of thrust chambers is reduced.

The invention discloses a design method for a numerical control milling intelligent clamp for a thin-wall structural piece. The design method is characterized in that firstly, an X-Y direction translation motion structure comprises an X-direction feed structure and a Y-direction feed structure; secondly, a support unit structure comprises a Z-direction supporting structure and a contact unit structure of the Z-direction supporting structure; thirdly, a clamp overall structure comprises a clamp base; and fourthly, an intelligent clamp system comprises a computer for obtaining the feed path and conducting storage and analysis and a displacement sensor arranged below a workpiece and used for obtaining and recording the initial position of the workpiece before machining. The design method has the advantages that a support manner with fixed supports as an auxiliary part and movable floating supports as a main part is adopted, the fixed supports are located on the periphery of the workpiece, and after machining is finished, parts deforming due to fixed clamping can be removed, and the precision of a component is not affected. During initial clamping, due to the joint action of the fixed supports and the floating supports, the workpiece is stressed evenly, unnecessary residual stress is prevented from being generated, accordingly, the clamping error is reduced, and the machining precision is improved.

The invention discloses a positioning device for grooving of an end tooth flange fork. The positioning device comprises an expansion mandril corresponding to a lug hole of the end tooth flange fork to be machined; the expansion mandril is connected onto a conical handle matched with a conical hole of a lathe; a through hole is formed in a central shaft of the conical handle and the expansion mandril; the free end part of the expansion mandril is provided with a plurality of axially arranged seam ports; a pull rod penetrates through the through hole; one end of the pull rod is connected with a conical puller matched with a conical inner hole in the end part of the expansion mandril; the other end of the pull rod is provided with a cylinder rod and a cylinder capable of rotating relative to the pull rod. The conical shape on the puller is matched with the conical inner hole in the expansion mandril, so the free end part of the expansion mandril is tensioned on the lug hole in the end tooth flange fork to be machined to achieve the aim of axially positioning the end tooth flange fork to be machined, so the symmetry and concentricity during secondary clamping of the product are improved, the clamping error brought by the secondary clamping is reduced, and the product grooving precision is improved.

The present invention discloses numerically controlled electric spark machining apparatus and process for great depth/diameter ratio toothed female die. The horizontal machining apparatus includes one biaxial numerically controlling device, two servo motors, one tool electrode, one fixture with three claws, one rotary inner sleeve for workpiece, one local directional liquid leading unit and one tool electrode holding casing. The present invention has combination of electric spark generating technology and numerically controlling technology to expand the machining range, and is especially suitable for machining hard-to-machine materials.

The invention provides a full automatic three-main shaft combined lathe, which belongs to the lathe field. The prior bearing processing lathe has the defects of low production efficiency, poor precision stability, high labor cost, difficult maintenance, huge energy consumption, high price, large occupation area, and the like. The lathe comprise a lathe body, a power motor, a main shaft box and a feed mechanism fixed on the right end and the back end of the surface of the lathe body and an automatic charging and discharging mechanism arranged on a box body of the main shaft box, wherein the main shaft box is provided with three main shaft devices all powered by the power motor along the Y shaft direction of the lathe; the automatic charging and discharging mechanism is provided with three charging and discharging devices which are arranged on the same sliding movement plate and correspond to the main shaft devices; and the feed mechanism is provided with three cuter platforms which arearranged on the same trailing bar and correspond to the main shaft devices, and each cutter platform is provided with two lathe tools. The lathe has the characteristics of low cost, little energy consumption, high production efficiency, high quality stability, small occupation area, and the like.

The invention relates to a repeatedly-usable reconditioning device of machining blade. The invention comprises a reconditioning integration and a blade clamp integration, wherein, the reconditioning integration comprises: a support plate, a motor mounted on the support plate, a belt wheel, a linkage plate, a muffle, a chief axis in the muffle and a bearing, while the chief axis via the keys has a separation sheath and a carborundum grinding wheel; and the blade clamp integration comprises: a drive shaft mounted in the support sheath, whose one end is connected to the blade fixing plate, a blade positioning plate with a positioning slot and a compressing mounted on the blade fixing plate; end caps mounted on the two ends of support sheath, and a hand-wheel mounted on another end of drive shaft. The invention can solve the problem of present machining blade which can not be reconditioned, while the invention has simple producing process and higher reconditioning efficiency. The invention has better social and economic benefits.

The invention relates to a processing method for ultra-high strength steel axis parts. According to the method, the ultra-high strength steel axis parts are clamped on a high speed cylindrical grinder; in the four process flows of device setting and parts clamping, coarse grinding, semi-grinding and accurate grinding, the parts are cooled intensely after and before the process flows of coarse grinding, semi-grinding and accurate grinding; high-pressure gas and liquid mixed fluid is sprayed into a grinding area from top to bottom in the three process flows of coarse grinding, semi-grinding and accurate grinding. The processing method for the ultra-high strength steel axis parts has the advantages of small grinding force, high grinding efficiency, improving the fragility of a material, improving the processability of the material, reducing the generation of grinding heat and temperature rising, reducing burning and hardening of a processed surface, reducing clamping errors, improving processing precision and processing efficiency and no need of secondary clamping.

The invention relates to the technical field of production of circuit breakers. An assembly device of copper sheets for a circuit breaker comprises a copper sheet feeding bracket, a copper sheet feeding assembly, a copper sheet cutting assembly and a copper sheet assembling assembly, wherein the copper sheet feeding assembly and the copper sheet cutting assembly are arranged on the copper sheet feeding bracket separately, the copper sheet feeding assembly is located at the feeding end of the copper sheet cutting assembly, and is used for conveying a copper sheet band for feeding, the copper sheet cutting assembly is used for cutting the copper sheet band sheet by sheet, and the copper sheet assembling assembly is located at the discharging end of the copper sheet cutting assembly, and is used for transferring and assembling the cut copper sheets. The assembly device has the advantages of being capable of improving the copper sheet cutting quality and stability as well as the copper sheet assembling efficiency and quality.

The invention discloses a drilling and milling device for an adjustment sheet type part. The drilling and milling device comprises a clamp body, centering screws and centering press plates. The clamp body is provided with screw mounting grooves, and press block mounting grooves are formed in the clamp body and located at the two ends of each screw mounting groove. The centering screws are mounted in the screw mounting grooves, the two ends of each centering screw are sleeved with the corresponding centering press plates which are arranged in the press block mounting grooves, and supporting blocks are further arranged on the clamp body and located outside the screw mounting grooves. By the adoption of the clamp body, when the adjustment sheet type part is clamped, except four supporting points and four pressing points opposite to the supporting points of the part, other thin walls are all in a non-stressed state, and part deformation caused by clamping can be greatly reduced; drilling and lug milling are completed through one-time clamping, and clamping errors are greatly reduced; and the center distance size can be guaranteed during drilling and reaming, and the device can be used for the lug milling procedure, so that clamp manufacturing and managing cost is saved, workers can conveniently use the device for machining on site, and the part machining cycle is shortened.

The invention discloses a reflector set clamp for precision detection of a numerical control machine tool. The reflector set clamp comprises a machine tool bed, a moving unit mounted on the machine tool bed, a swing unit mounted on the side, close to the machine tool bed, of the moving unit and a reflector set unit mounted on the side, close to the machine tool bed, of the swing unit. The reflector set unit comprises a reflector set clamp body connected with the swing unit and reflectors mounted on the reflector set clamp body. By means of the reflector set clamp, the operation that the reflector set is frequently replaced due to axis changes of a detected target in the geometric accuracy detection process of the translation axis of the machine tool can be effectively reduced, meanwhile, clamping errors generated by adjusting of the space posture of the reflector set are reduced, and convenience is provided for detection and recognition of the geometric accuracy of the translation axisof the multi-axis numerical control machine tool.