27results about How to "Avoid size errors" patented technology

The invention discloses automatic milling machining equipment for motor shaft manufacturing, and relates to the technical field of motor shaft machining, the automatic milling machining equipment comprises a machining table and further comprises a fastening device, a U-shaped frame is fixedly installed at the top of the machining table, a servo motor is fixedly installed on the front side of the U-shaped frame, a lead screw is fixedly installed at the output end of the servo motor, and the fastening device is fixedly installed on the top of the machining table. A sliding frame is slidably mounted on the inner wall of the U-shaped frame, the sliding frame is in threaded connection with the lead screw, a V-shaped plate is fixedly mounted on the inner wall of the U-shaped frame, a placing plate is fixedly mounted at the top of the machining table, and the fastening device comprises an electric push rod, a fastening plate, a connecting plate, a connecting rod, a square plate, a connecting spring and a positioning plate. The positioning plate moves to be in contact with the columnar workpiece and extrudes and positions the columnar workpiece, and the position of the columnar workpiece can be effectively controlled through the positioning plate before milling through pre-positioning, so that the size error or the surface unevenness caused by position deviation is avoided.

The invention relates to the technical field of cloth cutting, in particular to a public security raincoat production cloth cutting device which comprises a cutting table installed at one end of the top of a processing table and a conveying belt fixedly installed at one end of the cutting table. The cutting mechanism comprises a supporting frame arranged on the cutting table and a cutting knife installed on the inner side of the supporting frame, a servo air cylinder is fixedly installed at the top of the supporting frame, a driving transverse plate is detachably arranged on an output shaft of the servo air cylinder, and the cutting knife is detachably fixed to the driving transverse plate. The situation that the cloth is mechanically stretched or deformed in the cutting process to affect the size accuracy of the cut cloth can be prevented, the edge of the cut cloth is smooth and tidy, the cutting quality is guaranteed, the cloth cutting precision and the production efficiency are improved, meanwhile, cloth waste is reduced, the raincoat production process can be optimized, and the production cost is reduced. And the quality of finished products can be improved.

The invention provides a mechanical watch movement second shaft machining method. The mechanical watch core second shaft machining method comprises the steps that a, a high-precision metal bar is adopted and cut into a machining blank meeting the length requirement of a second shaft, preliminary deburring and polishing treatment are conducted on the surface of the blank, machining errors caused by surface defects are reduced, and materials with obvious defects are removed through quality detection; according to the mechanical watch core second shaft machining method, through application of the key model and the optimization technology, the machining precision and the surface quality of the mechanical watch core second shaft are remarkably improved. Through introduction of the flexible clamping device and combination of an elastic modulus and pressure distribution optimization algorithm, the problem of workpiece deformation caused by too large clamping force in traditional machining is effectively solved, and the method is particularly suitable for machining of a second shaft with a small size. According to the high-frequency ultrasonic vibration auxiliary turning technology, by means of dynamically-adjusted vibration frequency and cutting force distribution, the influence of machining vibration on the surface quality is reduced, and the cutting efficiency is remarkably improved.

The invention provides an NC30Fe high-chromium nickel-based alloy pierced billet as well as a preparation method and application of the NC30Fe high-chromium nickel-based alloy pierced billet. The preparation method comprises the following steps: firstly, heating an NC30Fe high-chromium nickel-based alloy tube blank to a specific charging temperature, and perforating by utilizing a hot cross rolling perforation process; in the punching process, it is ensured that the dimensional tolerance and eccentricity of a pierced billet meet the requirements by strictly controlling the roller distance, the top temperature and the extension coefficient; and then, quenching treatment is carried out on the pierced billet subjected to perforation, so that the grain size is controlled to be within the range of grade 3 to grade 7, and the high-temperature strength and creep resistance of the material are improved. According to the preparation method disclosed by the invention, through introduction of a hot cross piercing process, the problems of more surface defects, large eccentricity and difficulty in grain control caused by a traditional hot extrusion process are solved, the yield is increased to 93% or above, and the surface smoothness and the dimensional precision are remarkably improved. The pierced billet is suitable for preparation of high-temperature corrosion-resistant and high-precision nickel-based alloy pipes in the fields of petroleum, chemical engineering, aerospace and the like, and has high application value.

The invention discloses a multi-color coating method for railway vehicles and passenger cars. The multi-color coating method mainly comprises the following steps that S1, a standard car body is manufactured; s2, a pattern color separation standard template device is manufactured, a transparent PET protective film is used as a carrier of the template device, the template device is flatly laid on a vehicle body and fixed through a cloth-based adhesive tape, pattern lines are engraved through a ruler and a stroking pen, and the drawing size is marked on the pattern lines; s3, constructing and calibrating by utilizing the manufactured pattern color separation standard template device; and S4, vehicle spraying and local construction are conducted. The coating method can ensure that the sizes of all colors and patterns outside the vehicle body are uniform, so that the method better adapts to the surface contour change of the railway vehicle body, then all color and pattern coatings are naturally coordinated, protection construction is simple, unit operation can be carried out according to the patterns, and the cost is reduced. And the requirement of spraying finish paint in various colors at the same time can be met only through one-time protection, the operation time can be remarkably shortened on the premise that the product quality is guaranteed, and the operation efficiency is improved.

This invention discloses an intelligent modular composite milling and turning tool for machining centers, relating to the field of milling and turning tool technology. It includes a turret configured to be rotatably mounted on a machine tool turret base to perform multi-axis composite machining motions. The turret's disc body has a plurality of precision guide grooves arranged in a circumferential array extending radially. This invention constructs a closed fluid circulation loop comprising a spiral cooling pipe, a circulating pump, and a telescopic pipe, and incorporates an adaptive cooling assembly consisting of radial heat dissipation fins and a temperature sensor. This allows for real-time adjustment of coolant flow rate and heat dissipation power based on cutting heat, ensuring the tool holder remains in a constant-temperature machining environment. This effectively avoids dimensional errors caused by thermal deformation and improves the yield rate of machining heat-sensitive materials.

The utility model relates to the technical field of pin shaft machining, and discloses a pin shaft circumferential grinding machining device which comprises a bottom plate, the left side of the top end of the bottom plate is fixedly connected with a first motor, the driving end of the first motor is fixedly connected with a reciprocating lead screw, and the left side of the outer wall of the reciprocating lead screw is in threaded connection with a sliding block. A sliding rail is fixedly connected to the top end of the bottom plate, limiting blocks are fixedly connected to the left side and the right side of the top end of the sliding rail, a fixing block is fixedly connected to the right side of the top end of the bottom plate, a fixing ring is fixedly connected to the top end of the fixing block, and a sleeve is rotationally connected to the inner wall of the fixing ring; a plurality of second electric push rods are fixedly connected to the inner wall of the sleeve. According to the pin shaft polishing device, the polishing distance is set in advance according to the needed size of a pin shaft, size errors caused by excessive polishing are prevented, and meanwhile the surface of the pin shaft can be evenly polished through cooperation with the reciprocating lead screw.

The present invention provides a sintering preparation device and manufacturing method for a wire drawing die sleeve, which specifically relates to the technical field of wire drawing dies, including a steel die, a die cavity is provided on the steel die, a single layer of metal powder is laid on the inner bottom surface of the die cavity, polycrystalline diamond is placed in the center of the die cavity and on the single layer of metal powder, the die cavity is filled with metal powder, the metal powder is coated on the outside of the polycrystalline diamond, and the lower end surface of the steel die is pre-processed with a bottom hole; it also includes a die plugging structure coaxially arranged in the center of the die cavity, a pressing structure arranged at the top of the metal powder, the pressing structure is connected to the die plugging structure, the die plugging structure is arranged directly above the polycrystalline diamond, and the pressing structure is arranged directly above the die plugging structure. The present invention provides a sintering preparation device and manufacturing method for a wire drawing die sleeve, which realizes the positioning and protection of polycrystalline diamond in the process of producing the wire drawing die sleeve, and greatly reduces the amount of mechanical processing after the preparation is completed.

The utility model relates to building construction structure technical field especially is a kind of protective fence linear precision positioning tool, including support formwork main body, the support formwork main body includes several side plate assemblies, the side plate assembly between adjacent is assembled through connecting piece cooperation, the upper end of the support formwork main body is provided with positioning assembly, positioning assembly is limitedly provided with stand, and the side of the stand is provided with several supporting members;The side plate assembly includes several stainless steel side plates, each The stainless steel side plate is provided with butt joint structure, and the stainless steel side plate between upper and lower adjacent is matched butt joint through butt joint structure, the utility model is positioned by the cooperation of positioning assembly and supporting member, and the four side edges of stand are positioned and supported, avoid the influence that traditional manual pulling line positioning is affected by topography undulation, construction disturbance, significantly improve the perpendicularity of stand and the smoothness of overall linear, effectively satisfy the acceptance requirement that high-speed railway protective fence is smooth and straight and beautiful.

The utility model discloses a small slide structure for plastic part mould forming, which comprises a lower mould core arranged in a lower mould plate and an upper mould core arranged in an upper mould plate, a slide bottom plate is arranged in the lower mould core, the top of the slide bottom plate is movably connected with two small slides through a slide upper pressing plate, an oil cylinder is fixed on one side of the lower mould plate, and the oil cylinder is fixed on the other side of the lower mould plate. The telescopic end of the oil cylinder penetrates through the lower die plate and then is inserted into the lower portion of the lower die core, the telescopic end of the oil cylinder is connected with a V-shaped moving block, the two sides of the V-shaped moving block are connected with movable square shifting blocks through small track assemblies, and two moving grooves are formed in the top face of the slide bottom plate. The V-shaped moving block connected with the oil cylinder is designed, the V-shaped moving block is driven to move when the oil cylinder stretches out and draws back, the V-shaped moving block drives the square shifting block to move towards the middle through the small rail assembly, and therefore the two small slides stably move towards the middle. And the small slide is separated from the product.

The invention relates to the technical field of quartz product production and processing, in particular to automatic welding equipment for quartz claw products and a welding method of the automatic welding equipment. The concentric shaft clamping assembly is arranged on the rack and used for clamping a horizontally-arranged shaft rod, and the concentric shaft clamping assembly can further drive the shaft rod on the concentric shaft clamping assembly to rotate; the supporting claw clamping assembly is arranged on the rack and used for clamping the quartz claw and driving the quartz claw to get close to or get away from the direction of the front end of the shaft rod so that the supporting claw can be in butt joint with the shaft rod; and the welding gun assembly is used for welding the supporting claw and the shaft rod which are in butt joint. The device is high in universality, and production of quartz claws of different models can be achieved.

The utility model relates to engraving machine lower knife point prevents scarring with pressing device, including the pressing mechanism for the plate is pressed tightly in the lower knife position, and the pressing mechanism includes a pressing block and is used for driving the pressing block to move up and down the pressing block drive mechanism, and the engraving machine lower knife point prevents scarring with pressing device still includes the pressing mechanism connection frame for installing the pressing mechanism on the engraving machine head installation foundation, and the pressing mechanism connection frame has XY guide portion for avoiding the restriction engraving machine head movement after the work piece is pressed tightly by the pressing block, and the engraving machine lower knife point prevents scarring with pressing device still includes the connection frame reset mechanism for driving the pressing mechanism reset after lifting the knife. When working, the pressing mechanism starts in the place of 20mm-30mm from the lower knife point that engraving machine cutter head processes, and the work piece is pressed tightly under the descending of the pressing block, under the action of XY guide portion, the pressing mechanism is immobile, and the engraving machine head continues to process, and the pressing block resets when lifting the knife, and under the action of the connection frame reset mechanism, the pressing mechanism resets.

This utility model discloses a trimming and cutting device for particleboard production, including a U-shaped bottom hollow frame, sponge rollers rotatably mounted at the front and rear positions inside the U-shaped bottom hollow frame via bearing seats, a drive shaft rotatably mounted on one inner wall of the U-shaped bottom hollow frame, and an external spline shaft rotatably mounted on the inner wall of the U-shaped bottom hollow frame below the drive shaft. A left cutting disc is fixed to one end of the external spline shaft near the inner wall of the U-shaped bottom hollow frame. A three-gear speed-increasing transmission structure is installed between the drive shaft and the external spline shaft. This utility model controls the positions of the L-shaped shaft carrier, T-shaped hollow bushing, internal spline shaft, and right cutting disc via a control panel and an X-axis lead screw electric module. After adjustment, the motor transmits power to the external spline shaft and internal spline shaft, causing the left and right cutting discs to rotate synchronously. The operator manually pushes the particleboard until the left and right cutting discs synchronously trim the edges of the particleboard.

The invention provides a graphite felt cutting system for a vanadium battery. The graphite felt cutting system comprises a cutting tool, a first vacuum conveying belt, a second vacuum conveying belt and a third vacuum conveying belt, and a to-be-cut graphite felt is borne on the conveying face of the first vacuum conveying belt; the cutting tool is arranged on the side, away from the first vacuum conveying belt, of the to-be-cut graphite felt. The second vacuum conveyor belt is arranged on the downstream of the first vacuum conveyor belt, and the conveying face of the second vacuum conveyor belt and the conveying face of the first vacuum conveyor belt are located on the same plane. The third vacuum conveying belt is arranged on the side, away from the second vacuum conveying belt, of the target graphite felt and the graphite felt waste, the width of the conveying face of the third vacuum conveying belt is smaller than that of the conveying face of the second vacuum conveying belt, and part of the conveying faces of the third vacuum conveying belt are opposite to the conveying face of the second vacuum conveying belt. The problems that in the prior art, cutting precision is poor, and production efficiency is low are solved.

The present invention relates to the technical field of circuit board manufacturing, and in particular to a large-format photolithography system based on a parallel light source capable of eliminating diffraction, including a parallel exposure light source, a lens, an incident regulator, a mask holder, a mask plate, a movable exposure stage, a control console, a light source sensor, an image sensor, an alignment sensor, a calibration sensor, and an optical imaging sensor. Through real-time monitoring and intelligent adjustment, the system can automatically compensate for problems such as uneven light intensity, incident angle deviation, mask plate position error, and inconsistent exposure stage movement speed. This intelligent control significantly improves the accuracy and repeatability of photolithography, reduces human intervention and potential errors, thereby improving production efficiency and product quality. In addition, the flexibility and accuracy of the system enable it to adapt to different photolithography requirements and process conditions, providing strong technical support for high-precision semiconductor manufacturing and other micro-nano manufacturing fields.

The invention relates to a machine vision-assisted positioning stereoscopic warehouse and a positioning method, and relates to the field of vision-assisted positioning stereoscopic warehouse equipment, the machine vision-assisted positioning stereoscopic warehouse comprises a transverse moving part, a vertical moving part and a material taking mechanism, the vertical moving part is mounted on the transverse moving part, the transverse moving part is used for driving the vertical moving part to move in the vertical direction, and the material taking mechanism is mounted on the vertical moving part; the driving mechanism is installed on the vertical moving part, the vertical moving part is used for driving the driving mechanism to move in the vertical direction, the material taking mechanism is used for clamping and conveying a battery box assembly, a camera assembly is installed on the sampling mechanism, the camera assembly comprises a visual camera and a light source, and the camera assembly is used for clamping and conveying the battery box assembly. The visual camera is installed on the sampling mechanism, and the light source is installed at the position close to the visual camera. The method has the effect that the problem that potential safety hazards exist due to collision between the stacking machine and the charging and discharging equipment is solved.

This utility model belongs to the field of contact wire technology, specifically relating to a contact wire ratchet connecting frame anti-deformation mirror rotation welding device, including a base, a pressure frame, and a rotation drive mechanism for driving the base to rotate; the base includes a first limiting structure for supporting and limiting a U-shaped hanging plate, a second limiting structure for supporting and limiting a steel pipe, a third limiting structure for limiting a support plate, and a fourth limiting structure for limiting the horizontal tube of the connecting frame; the pressure frame is equipped with a pressure plate assembly for pressing down the upper and lower stiffening plates; this utility model uses the first limiting structure, the second limiting structure, the third limiting structure, the fourth limiting structure, and the pressure plate assembly to fix the ratchet connecting frame, and uses the rotation drive mechanism to compensate for the blind spot during welding, achieving integrated welding without dead angles, and can achieve synchronous symmetrical welding on both sides, avoiding dimensional errors caused by displacement due to welding on one side.

The bus duct connecting pipe assembly with the sealing structure comprises a first connecting pipe and a second connecting pipe, and is characterized in that a first flange is arranged at a first free end, the bus duct connecting pipe assembly further comprises an adhesive tape pressing plate, and the adhesive tape pressing plate is detachably connected to the first flange; a sealing rubber strip is arranged at the outer side opening part or the interior of the wire slot gap, and when the rubber strip pressing plate is connected to the first flange and tightened, the rubber strip pressing plate extrudes the sealing rubber strip to enable the sealing rubber strip to seal the outer side opening part or the interior of the wire slot gap; the sealing structure further comprises a frame-shaped supporting frame, the supporting frame is arranged on the inner side of the second free end and supports the inner side wall of the second free end, and the area, bearing extrusion force of the sealing rubber strip, of the outer side wall of the second free end corresponds to the supporting area, supporting the inner side wall of the second free end, of the supporting frame inside and outside. During actual installation, the installation length of the connecting pipes is adjusted in real time through movable stretching and retracting of the two connecting pipes, the problem that size errors are generated in the installation process of the bus connecting pipes is well solved, and engineering waste is reduced.

The utility model discloses a positioning and cutting device which comprises a machine box, a control table is arranged outside the machine box, a cutting mechanism is installed inside the machine box, the cutting mechanism comprises a tool apron, an inclined tool groove is formed in the surface of the tool apron, a tool rest is installed on the upper surface of the tool apron, fixing seats are installed on the two portions of the upper end of the tool rest respectively, and the fixing seats are fixed to the machine box. A sliding groove is formed in the tool rest, a cutter is slidably installed on the tool rest through the sliding groove, a plurality of through holes are formed from the lower surface of the tool apron to the inclined tool groove, the through holes are all connected with air pipes, an air blower is fixed in the machine box, and an output port of the air blower is connected with the air pipes. And the cutter and the air blower are electrically connected with the console. By arranging the cutting mechanism, the console can control the cutter to cut the passing filter bag, and the air blower blows air, so that the cut part of the filter bag is prevented from being clamped into the cutter groove.

The utility model discloses an air bag stamping device. The air bag stamping device comprises a base, a stamping driving mechanism, a lower punch mechanism and an upper punch mechanism. The punching driving mechanism is used for driving the upper punch mechanism to be inserted into or pulled out of the lower punch mechanism. The upper punch mechanism comprises a connecting jacking column, a workpiece end punching assembly and a punching assembly. An air bag workpiece is inserted into the lower punch mechanism in the horizontal direction, the workpiece end punching assembly and the lower punch mechanism are matched in a jacking mode to punch and cut the end of the air bag workpiece, the punching assembly and the lower punch mechanism are matched in a jacking mode to cut and punch the air bag workpiece, and one-time forming is achieved; the automatic punching process of the air bag workpiece is achieved, the upper punch mechanism can be automatically inserted into or pulled out of the lower punch mechanism through the driving effect of the punching driving mechanism, the accuracy and consistency of the punching process are ensured, the problems of size errors and air leakage occurring in manual operation are effectively avoided, and the production efficiency is improved. And the quality and the production efficiency of air bag products are improved.

The utility model relates to the technical field of wire rod processing equipment, propose a kind of sleeve mechanism, including rack, be equipped with on the rack: pipe clamp subassembly, the pipe clamp subassembly is used to clamp sleeve;Wire clamp subassembly, the wire clamp subassembly is used to clamp wire rod;Feeding assembly, the feeding assembly is used to convey sleeve to the pipe clamp station of pipe clamp subassembly;Cutter subassembly, the cutter subassembly cuts sleeve after sleeve is clamped by pipe clamp subassembly, to cut off the sleeve of pipe clamp subassembly and feeding assembly connection;Moving assembly, the moving assembly movable end is connected with pipe clamp subassembly, is cut off by cutter subassembly, and sleeve on pipe clamp subassembly is moved along wire clamp subassembly by moving assembly, to sleeve set on the outside of wire rod. The sleeve mechanism is cooperated by each component, realizes the full automation operation of sleeve setting process.

The invention relates to the technical field of laser cutting, and discloses a laser cutting device for sheet metal parts, which comprises a device body, an automatic fixing component arranged in an inner cavity of the device body, and a cleaning conversion component arranged on the automatic fixing component, the cleaning and discharging part is arranged at the bottom of the inner cavity of the device body. According to the laser cutting device for the sheet metal part, through mutual matching of the transverse fixing assembly and the vertical fixing assembly, transverse and vertical limiting operation can be conducted on a sheet, the sheet can be automatically and accurately fixed to a preset position, position deviation and size errors possibly generated in the manual fixing process are avoided, and the production efficiency is improved. Meanwhile, the device can be quickly adapted to thin plates of different sizes, the time needed for replacing and adjusting the thin plates is shortened, the plate replacing efficiency of a production line is improved, the requirement for manual operation is reduced through automatic fixing operation, and the safety accident risk caused by human errors is reduced.

The utility model relates to the technical field of pet food processing, and discloses a splitting and cutting device for pet food, which comprises a splitting seat and a cutting device, the splitting seat comprises a bottom plate and a support, an extruder is fixedly arranged on the bottom plate, a trough is arranged at an extrusion port of the extruder, and the support is fixedly arranged on the bottom plate and positioned above the trough; the material carrying plate is detachably arranged below the bottom plate in a sliding manner and is driven by a plurality of driving wheels fixedly arranged below the bottom plate, and a gap for pet food to pass through is formed between the upper wall of the material carrying plate and the lower wall of the bottom plate; the slitting frame is arranged on the bottom plate, located over the material groove and driven by an air cylinder fixedly arranged on the support to ascend and descend, and a plurality of slitting knives are arranged below the slitting frame at equal intervals. The device has the advantages that uniform cutting is achieved after forming, the device is directly and neatly placed on a drying plate, manual placing is not needed, and the specification is uniform.

The invention provides a combined mold manufacturing method based on UG modeling, and relates to the technical field of mold manufacturing. The combined mold manufacturing method based on UG modeling comprises the steps that demand analysis and scheme design are carried out, according to product demands, mold types, structural forms and main technical parameters are determined, preliminary three-dimensional modeling is carried out through UG software, and an overall design scheme of a mold is generated; in the step of three-dimensional modeling and parametric design, in UG software, the powerful three-dimensional modeling function of the UG software is utilized, detailed three-dimensional modeling is conducted on all parts of the mold, a parametric design method is adopted, and parametric definition is conducted on the key size of the mold, so that subsequent modification and optimization are facilitated. A powerful three-dimensional modeling tool is provided by adopting UG software, all parts and the overall structure of the mold can be rapidly created, the design period is remarkably shortened, rapid modification and optimization can be achieved through parametric design and mold design, the workload of repeated design is reduced, and the design efficiency is improved.

The invention relates to the technical field of vehicles, and discloses a floor framework, a seat assembly, a floor assembly and a vehicle, a seat front cross beam, a seat rear cross beam, a first side reinforcing part and a second side reinforcing part are integrated to form the integrally formed floor framework, the number of parts of the floor framework is reduced, and the cost is reduced. Connection between mutually independent parts is omitted, so that the forming process of the floor framework is simpler, and the processing efficiency of the floor framework is improved; the integration degree of the floor framework can be improved, the size control of the floor framework is more accurate, the size precision is improved, and size errors caused by welding of independent components are avoided; the connecting strength of the seat framework, the seat front cross beam and the seat rear cross beam can be improved, and the safety and reliability of the floor framework are improved; and the performance of the area near the seat can be improved, and the user perception experience is improved. By arranging the second side reinforcing piece, the structural strength, the anti-collision performance, the reliability and the stability of the whole floor framework can be improved.

The invention provides a digital manufacturing method of a novel pressed film jaw position appliance, which comprises the following four steps of: 1) acquiring oral cavity information of a patient, including soft and hard tissue information, dentition information and a jaw position relationship of the patient; 2) creating a corresponding digital three-dimensional model of the dentition of the patient according to the oral cavity information of the patient; performing digital tooth separation and tooth arrangement through professional design software to obtain a target dentition three-dimensional model required by a patient; 3) adjusting the jaw position relation of the dentition model according to diagnosis and treatment requirements, and exporting and manufacturing a required target model after confirmation; 4, on the basis of the target dentition model with the adjusted jaw position relation, the required jaw position appliance is designed and manufactured according to the treatment target, the process is greatly simplified, and multiple steps which possibly generate errors in the traditional manufacturing process are omitted.