61results about How to "High shape accuracy" patented technology

The invention relates to the technical field of batteries, in particular to a battery cell cover plate and a battery cell. The battery cell cover plate comprises a pole assembled on a cover plate main body; the riveting piece is provided with a connecting hole, and the pole is riveted in the connecting hole and then is welded with the riveting piece; the connecting hole is of a stepped hole structure provided with a first stepped part, a second stepped part and a third stepped part which are sequentially arranged in the axial direction, and the hole diameters of the first stepped part, the second stepped part and the third stepped part are sequentially decreased. In the thickness direction of the cover plate main body, the height dimension h of the first step part is 0.2-0.5 mm; and the distance a between the inner wall of the first step part and the inner wall of the second step part is 0.5-1mm. Welding marks formed by a welding process can be prevented from protruding out of the upper surface of the riveting piece, so that the flatness of the riveting piece is guaranteed; the avoiding groove meeting the requirement of the welding process is formed in the riveting piece, and the influence of the welding process on the shape and size precision of the riveting piece is improved, so that the appearance yield of the battery cell cover plate is improved, and the safety and yield of the battery cell are improved.

The invention relates to an elevation control and precise regulation and control method for frozen sand mold additive manufacturing in a time sequence space. According to the method, a mathematical model that the thickness of floating sand changes along with time due to moisture heat exchange of the frozen sand mold in air is established, and the thickness of the floating sand of frozen sand molds with different curved surfaces under the parameter conditions of different environment temperatures, time scales, sand mold materials, moisture contents and the like is predicted and fed back; and in the freezing printing process, real-time adhesive and height compensation is carried out on sand molds at different wall thicknesses, and the dimensional precision and geometric precision of the frozen sand molds are protected to a certain extent. According to the method, the problem of dimensional accuracy error caused by floating sand generated by heat exchange in air in the manufacturing and subsequent placing processes of the frozen sand mold is effectively solved, and the dimensional accuracy of the sand mold during casting is ensured.

The invention discloses a high-precision part machining path planning method based on artificial intelligence optimization, and the method comprises the following steps: generating a first three-dimensional geometric model of a to-be-machined part, carrying out the curved surface division, and obtaining a manufacturing feature point according to a division result; determining a processing placement surface for the first three-dimensional geometric model according to the manufacturing feature points, and performing processing element positioning and shaping to obtain a second three-dimensional geometric model; processing path preliminary planning is carried out, optimization is carried out based on mixed # imgabs0 # equilibrium by using a neural network, and a second planning processing path is output; performing path optimization based on a Gaussian distribution function and a cubic # imgabs1 # spline curve to obtain a third planning processing path; and simulation verification is carried out, path adjustment and optimization are carried out by adopting a hierarchical optimization ant colony algorithm according to a verification result, and a final planning processing path is output. The precision, the efficiency, the flexibility and the adaptability in the high-precision part machining process are improved.

The invention relates to the technical field of flat wire stator head twisting equipment control, and discloses a process calculation method and system of flat wire stator head twisting equipment and the head twisting equipment, and the method comprises the steps: obtaining a plurality of setting parameters of a head twisting process input by a user; calculating according to the plurality of setting parameters to obtain an operation result; inputting an operation result into a point set formula of each layer of the torsion head module to obtain a data set, wherein the point set formula comprises a parameter equation and a compensation equation of spatial displacement; and writing the data set into a control file of a preset path, and performing a head turning process on the flat copper wire after the flaring process based on the control file. According to the invention, the motion trail of the equipment is approximate to the motion trail of the copper wire bending point, the copper wire is prevented from being scratched due to large relative displacement between the head twisting die and the copper wire bending point, the process trail of the product equipment and the model changing calculation can be quickly carried out, the device can adapt to the production of flat wire products with different specifications, the production efficiency is improved, and the production cost is reduced. The processing time is reduced.

The invention discloses a high-yield laminated mold, and relates to the technical field of molds, the high-yield laminated mold comprises a middle mold base, external mold bases are slidably connected to the two sides of the middle mold base, mold cavities are formed in the two sides of the middle mold base, and hot runners communicating with the mold cavities are installed in the middle mold base; a cavity is formed in the middle mold base, an ejector pin penetrating through the middle mold base and extending into the cavity is slidably connected into the middle mold base, a boss is fixedly installed in the ejector pin, a positioning column used for being connected with a nut in a sleeved mode is fixedly connected to the boss, and the sealing unit comprises a sleeve and a piston plate which are slidably connected into the positioning column. The larger the internal pressure of the first sealing ring is, the tighter the first sealing ring and the inner wall of the nut is, plastic in a molten state is prevented from entering threads of the nut under the pressure, after a material is cooled and shaped, the roller and the first sealing ring can automatically restore to the original shape, the force needed by demolding ejection of a product is reduced, and the ejector pin can eject the product perfectly and conveniently.

This invention belongs to the field of precision machining technology, and discloses a structured contact wheel belt grinding device and control method with flow pressure regulation. It has the function of grinding structured surfaces of various sizes with the same structure, including a support structure and a structured surface grinding actuator. The support structure includes a base plate, ribs, a motor fixing component, and an electric actuator support. The structured surface grinding actuator includes a drive motor, a motor connecting shaft, a drive wheel, a sanding belt, a tension wheel, a tension wheel bracket, a tension wheel bracket fixing component, a guide wheel assembly, a guide wheel assembly bracket, an electric actuator, a force sensor mounting flange, a force sensor, a contact wheel frame fixing component, a contact wheel frame, a structured contact wheel, a ring clamp, hydraulic oil lines, and an electro-hydraulic servo valve. This invention is mainly used for structured surface belt grinding. It adjusts the hydraulic system loading parameters according to the real-time changes in grinding force during the grinding process to control the internal flow pressure of the structured contact wheel, thereby meeting the stable processing requirements of structured surfaces of different sizes.

The invention relates to a residual stress homogenizing device for an aluminum alloy plate, and belongs to the technical field of mechanical manufacturing processes. Comprising a vibration aging mechanism, a plurality of infrared heating mechanisms, an aging platform mechanism, a displacement mechanism and an aluminum alloy plate workpiece, the aluminum alloy plate workpiece is arranged on the vibration aging mechanism, the vibration aging mechanism and the displacement mechanism are both arranged on the aging platform mechanism, the infrared heating mechanism is installed on the displacement mechanism in a sliding mode, and the infrared heating mechanism is rotatably arranged above the aluminum alloy plate workpiece. According to the device, vibration aging is utilized to resonate the workpiece to obtain energy, and an infrared heating mechanism is combined to enable the aluminum alloy plate workpiece to generate phase change and tissue yield change at a resonance vibration mode pitch line, namely a position with relatively weak vibration energy, so that the effect of integrally reducing and homogenizing residual stress is achieved.

The invention discloses a rolling mill and a metal composite rolling method, and relates to the technical field of rolling mills for rolling and forming sections. The first rolling mill is used for rolling a composite metal blank; the composite metal blank comprises a double-layer metal blank which specifically comprises an inner-layer blank and an outer-layer blank; the inner-layer blank is arranged in the outer-layer blank and is made of different materials; the section of the inner-layer blank is in a central symmetry shape; the first rolling mill comprises a first rolling hole, and the first rolling hole is an asymmetric oval rolling hole; through the design of the asymmetric oval rolling holes, deformation is distributed more evenly, internal stress concentration is reduced, the size precision and surface quality of products are improved, and under the condition that the rolling hole alignment precision is reduced due to aging or improper maintenance of a rolling mill, the asymmetric oval rolling holes can still keep relatively stable rolling quality and low defective rate.

The present application relates to quenching technical field, especially a kind of continuous high-frequency quenching device.Its technical scheme includes: double-channel cooling cover, it is composed of two cover bodies that are distributed and fixed in support, cover body is opened with several tooth top grooves along the advancing direction of drill rod, several tooth top grooves are distributed in spiral, the helix angle of tooth top groove and the helix angle of drill rod threaded portion are consistent, movable arc-shaped baffle is arranged in tooth top groove, the distance between adjacent tooth top grooves and the pitch of drill rod threaded portion are consistent.The present application separates the threaded portion of drill rod into tooth top and tooth bottom in the way of cooling, thereby reducing the deformation of the whole thread, improving the dimensional accuracy and shape accuracy of thread, and the organization transformation of tooth top and tooth bottom is more uniform, reducing the generation of internal residual stress, the reduction of residual stress can effectively improve the fatigue life of thread, under the same working conditions, the fatigue life of drill rod thread cooled by the present device can be improved compared with traditional way.

The present invention relates to the technical field of bearing processing, and proposes an inner diameter grinder for stainless steel bearing processing, comprising: a machine tool body having an installation space, the installation space being used to install bearings; a feed member being slidably arranged on the machine tool body; a pneumatic driver being arranged on the installation portion, the pneumatic driver having a first air inlet and a liquid inlet, the first air inlet being used to introduce compressed air, the liquid inlet being used to introduce grinding fluid, the pneumatic driver having a rotating end, the rotating end having a liquid outlet and a first air outlet, the first air inlet being connected to the first air outlet, the liquid inlet being connected to the liquid outlet; a grinding wheel being arranged on the rotating end, the pneumatic driver being used to drive the grinding wheel to rotate after compressed air is introduced into the first air inlet. The above technical scheme solves the problem that a small amount of extremely small debris will remain on the inner ring of the stainless steel bearing during grinding, thus affecting the subsequent use of the stainless steel bearing.

The utility model belongs to hole processing technical field especially relates to a punch tool for hole processing, including the female die bottom plate, the female die bottom plate top is provided with female die fixed plate, female die fixed plate bottom and female die bottom plate top interconnect, female die fixed plate top is provided with the punch fixed plate. This punch tool for hole processing has realized the guiding effect through the guide pillar and punch guide plate, has guaranteed the cooperation accuracy of the punching punch and female die, has effectively improved the size accuracy and shape accuracy of hole processing, can satisfy the production demand of high-precision product, through the design of pressing material assembly utilizes the elasticity of pressing spring and makes the pressing block firmly press the work piece in the stamping process, prevents work piece displacement, ensures the quality stability of hole processing, reduces the risk of punch damage simultaneously, reduces production cost, and can quickly and conveniently dismouting punch punch, and then can better process.

The utility model provides a die structure for punching a display frame. The die structure for punching the displayer frame comprises a punching table, a supporting frame is fixedly connected to the top of the punching table, an air cylinder is installed at the top of the supporting frame, a telescopic rod is slidably connected to the bottom of the air cylinder, a central block is fixedly connected to the surface of the telescopic rod, and guide rods are fixedly connected to the two sides of the central block; a transmission rod is fixedly connected to the bottom of the guide rod, a transmission groove is formed in the top of the stamping table, a lifting plate is slidably connected to the interior of the ejection box, a reset spring is fixedly connected to the bottom of the lifting plate, a first ejection rod is fixedly connected to the top of the lifting plate, and a second ejection rod is arranged in the stamping groove; and the first ejector rod is in sliding connection with the second ejector rod. The die structure for punching the display frame has the effects of improving the overall quality and consistency of products and improving the working safety of workers.

The utility model relates to a laser cutting machine lathe bed and a laser cutting machine, and belongs to the field of laser processing equipment. According to the technical scheme, the lathe bed of the laser cutting machine comprises a plurality of sets of stand columns which are oppositely arranged, a cross beam is arranged between the opposite stand columns, grooves are formed in the side faces of the stand columns, the two ends of the cross beam are embedded into the grooves of the corresponding stand columns respectively, and the ends of the cross beam are fixedly connected with the stand columns. The utility model has the beneficial effects that the upright post and the cross beam are assembled and welded through the groove mortise and tenon joint structure, and a positioning effect is formed through the groove, so that the positioning difficulty in the welding process is reduced, the operation flow is simplified, and the positioning precision and the assembly speed are improved.

An injector and a welding method thereof, relating to the technical field of engine injectors. The injector comprises a support part and a cover plate arranged on the front of the support part; a plurality of concentrically distributed annular grooves are arranged on the covering surface of the cover plate, a plurality of annular convex ribs are arranged on the front of the support part and inserted into the annular grooves in a one-to-one correspondence, the plurality of annular convex ribs are concentrically distributed, and the annular convex ribs are fixedly connected with the annular grooves by a diffusion welding process to form a mixing chamber between adjacent annular convex ribs; a plurality of injection holes connected with the mixing chamber are arranged through the cover plate along the thickness direction; a first fuel chamber and a combustion-supporting chamber respectively connected with the mixing chamber are arranged in the support part, the first fuel chamber is used to introduce fuel into the mixing chamber; the combustion-supporting chamber is used to introduce an oxidant into the mixing chamber. The injector has a stable structure and a small change in overall flatness, and the connection strength and sealing of the welded joint are improved by the diffusion welding process, thereby ensuring the dimensional accuracy and shape accuracy of the injector, as well as the safety and reliability of the injector.

The utility model provides a kind of robot and shoe processing system for shoe shaping, it is related to shoe processing technical field.The robot includes rotary drive component, vision system and two manipulators, rotary drive component transmission connection has mounting seat, and the rotation axis of rotary drive component is consistent with vertical;Two manipulators are located in the two sides opposite of mounting seat;Vision system includes three cameras, one of which is provided in mounting seat, and the other two cameras are one-to-one corresponding provided in the end region of two manipulators.The shoe processing system includes the above-mentioned robot, shoe press, controller and shoe rack for placing shoe tree, robot is arranged between shoe press and shoe rack, and the manipulator and vision system of robot are all connected to controller.The robot identifies the model and orientation of shoe tree, and the orientation accuracy of the manipulator clamping shoe tree, adjusting its orientation and placing it in the orientation accuracy of shoe press processing station is higher, so as to improve the shaping processing accuracy of shoes.

The utility model relates to the technical field of bending dies, in particular to a bending forming die of a long-strip support, which comprises an upper die and a lower die, and a first forming male die and a second forming male die are arranged on the upper die. The lower die comprises a lower die base, and a forming female die is arranged on the lower die base. The upper die is further provided with a pre-bending male die. The lower die base is further provided with a pre-bending female die capable of being attached to the pre-bending male die. A slope is arranged on the pre-bending female die; a driving assembly is further arranged on the lower die base and used for driving the strip materials to move in the direction from the pre-bending female die to the forming female die. According to the bending die, the problem that in the prior art, when a bending die conducts single bending on a strip material, due to the fact that the strip material has distortion and stress springback, an obtained support product still has certain warping is solved, the strip material can be bent step by step so that residual stress in the strip material can be reduced, springback of the strip material is reduced, and production efficiency is improved. Therefore, the stability of a bracket product can be improved.

The present application belongs to the technical field of interventional surgical catheters, and specifically is an interventional surgical catheter shaping device and a shaping method thereof, comprising a kettle body, a boiling chamber is arranged inside the kettle body, a kettle cover is arranged on the top of the kettle body, a controller is arranged on one side of the kettle body and the kettle cover, a workbench is arranged on the top of the kettle cover, and a plurality of exhaust holes are evenly arranged on the workbench; a rotating shaft is rotatably connected to the axis of the boiling chamber, a plurality of stirring rods are evenly arranged on the outer surface of the rotating shaft, side grooves are arranged at the opposite ends of the stirring rods on the same side, sliding rods are slidably connected inside the side grooves, and a plurality of fixed sleeves are evenly arranged on the top of the workbench; the shaping device has high shaping efficiency and good shaping effect, meets actual shaping needs, ensures that the end of the interventional surgical catheter meets the patient's vascular intervention requirements, is simple to operate, has strong controllability, is stable and efficient, has good continuous shaping effect, is stable and efficient, and has strong adaptability.

The invention provides a dual-motor anti-backlash heavy-load numerical control rotary table, and belongs to the field of numerical control machine tools, the dual-motor anti-backlash heavy-load numerical control rotary table comprises a main base body, a base protection top block is fixedly connected to the top surface of the main base body through a horizontal bolt, and a working platform is horizontally arranged on the top surface of the base protection top block. The rotary table can accurately rotate and position according to a preset angle, and a high-precision machining reference is provided for a workpiece, so that the size precision and the shape precision of a machined part are remarkably improved, and the requirement for high-precision machining is met. For example, in the machining process of aerospace parts, the rotary table can ensure that the machining precision reaches the micron level for machining of some holes, contours and other characteristics with extremely high precision requirements, the quality and performance of the parts are effectively improved, overall workpiece machining can be more accurate and efficient, and the machining efficiency is improved. And multiple directions can be expanded to meet the machining requirement, the bearing capacity is greatly improved, and the range of the types of machined workpieces is further widened.

The present invention relates to a method for manufacturing a molded sheet, comprising: a hot pressing step, using a pair of molds having a plurality of optical surface forming areas separated from each other, hot pressing and molding a single-piece sheet formed by a thermoplastic resin film under normal pressure to obtain a molded sheet.

The utility model discloses slicing equipment which is used for cutting strip-shaped sheets into pole pieces, the strip-shaped sheets are evenly provided with pole lugs at intervals, and the slicing equipment comprises a machine table, a cutter device and a detection device. The machine table is provided with a conveying channel, and the conveying channel conveys strip-shaped sheets in the first direction. The cutter device comprises a rotating mechanism and a cutter mechanism which are arranged on the machine table, the cutter mechanism is movably arranged on the machine table through the rotating mechanism, the cutter mechanism is provided with a cutter moving in the second direction, the cutter is located above the conveying channel and cuts the strip-shaped sheets in the second direction to form the pole pieces, and the rotating mechanism drives the cutter to rotate around the second direction. And the detection device is arranged on the machine table, is adjacent to the conveying channel, is electrically connected to the rotating mechanism and is used for detecting the position of the tab of the strip-shaped sheet in the conveying channel. The technical scheme provided by the utility model has the advantage of improving the slicing process precision of positive and negative pole pieces.

The disclosure provides a stent including: an annular first strut forming a wave shape; an annular second strut that is adjacent to the first strut in the axial direction and forms a wave shape; a first extension portion that is formed on a first crest as some of plural crests protruding toward the second strut in the first strut and extends from both sides with respect to a bisector of the first crest toward the second strut; a second extension portion that is formed on a second crest, which is located to be shifted in a circumferential direction with respect to the first crest among plural crests protruding toward the first strut side in the second strut, and extends from both sides with respect to a bisector of the second crest toward the first strut; and a bridge portion bridged between the first extension portion and the second extension portion.

The invention discloses a closed forging tool for a rocker arm shaft, and belongs to the field of forging. A rocker arm shaft closed type forging tool comprises an upper die base used for being installed on a moving part of a lifting mechanism and further comprises a lower die base fixed to the ground, the upper die base and the lower die base are coaxially arranged, a punch is fixedly installed on the lower portion of the upper die base, a circulating cooling assembly is arranged between the upper die base and the lower die base, and the upper die base and the lower die base are coaxially arranged. When the upper die base descends for forging and pressing, the circulating cooling assembly cools the upper die base and the lower die base. The upper die base is installed on the moving part of the lifting mechanism, centering is conducted through the fixed lower die base, precise positioning of a workpiece in the forging process is guaranteed through the coaxially-arranged dies, deviation or bending is avoided, in addition, the punch on the lower portion of the upper die base and the forming cavity of the lower die base are matched for forging and pressing operation, closed forging is achieved, and the forging efficiency is improved. The closed design avoids the problems of material loss and inaccurate deformation control in open forging.

The present invention relates to glass, etc., wherein the glass is a microcrystalline glass, wherein within a temperature range where the logarithm of the bulk viscosity η [dPa·s] logη [dPa·s] is 11.4 or more and 12.7 or less, the logarithm of the bulk viscosity η [dPa·s] logη [dPa·s] and the local viscosity η 0 Logarithm of [dPa·s]logη 0 The difference between [dPa·s], i.e. logη‑logη 0 [dPa·s] is greater than 0 and less than or equal to 1.8.

The invention discloses a preparation method of a high-purity molybdenum alloy composite material and application of the high-purity molybdenum alloy composite material in a metal fireplace, and the preparation method comprises the following steps: selecting high-purity molybdenum powder, titanium powder, zirconium powder, tungsten powder and nickel powder as raw materials, carrying out modification treatment on each powder, mixing the powder after modification treatment, pressing the mixed alloy powder, and sintering to obtain the high-purity molybdenum alloy composite material. The preparation method comprises the following steps of: forming a pressed blank, carrying out directional local melting on the pressed blank, sintering the pressed blank subjected to directional local melting, fully melting and combining, then carrying out multi-pass drawing and upsetting treatment, carrying out annealing treatment, and cooling to room temperature along with a furnace after annealing, so as to obtain a final material. A layer of uniform and compact protective film is formed on the surface of the alloy, so that the compactness and uniformity of the material are improved, the interaction between the material and subsequent treatment liquid is regulated and controlled, and the surface roughness is increased; the situation that the alloy of the integrally prepared high-purity molybdenum alloy composite material is not uniform is reduced, and the overall performance of the high-purity molybdenum alloy composite material is improved.

This invention discloses a combined centerless belt grinding and polishing method using multi-segment curved guide rollers, applicable to the automated production of precision machining on the outer cylindrical surfaces of cylindrical workpieces such as bearing rollers. On one hand, it employs a parallel structure of three parallel guide rollers with different curved surfaces. The first section of the guide roller is a conjugate conical surface used to drive the workpiece for continuous axial feed; the second section is a cylindrical surface used for grinding and polishing; and the third section is a uniform conical surface used to drive the workpiece for receiving. On the other hand, it integrates belt grinding and polishing processes into a single centerless machining device. This patent can be used to obtain good surface quality, improve production efficiency, reduce equipment structural complexity, reduce external feeding auxiliary devices, simplify production space, and lower manufacturing costs.

The utility model relates to the field of automobile part machining, in particular to an automobile part rolling machining device. Comprising a base and a workpiece, the base is detachably connected with a plurality of mounting plates, the mounting plates are rotationally connected with a first roller set, a second roller set and a third roller set, the first roller set, the second roller set and the third roller set are matched with the workpiece, and the first roller set is used for pre-bending the two sides of the workpiece; the second roller set and the third roller set are used for further bending the workpiece, the mounting plate is rotationally connected with a first forming roller and a second forming roller, the first forming roller and the second forming roller are used for pre-bending the middle of the workpiece, the mounting plate is rotationally connected with a side pressing roller set, and the side pressing roller set is used for extruding the two sides of the workpiece. By the adoption of the bending device, a workpiece can be accurately bent step by step, and the size precision and the shape precision of a product are improved.

The invention discloses a C-shaped sealing ring composite soft die bulging device and method.The C-shaped sealing ring composite soft die bulging device comprises a first die assembly and a second die assembly, the first die assembly comprises two first die bases, two first dies and a first elastic column, and the second die assembly comprises two second die bases, two second dies, a muddy material and a second elastic column. The C-shaped sealing ring is formed in two steps, the first die assembly expands the blank into a preformed part through the first elastic column, and the second die assembly expands the preformed part into a finished product through the mud-like material and the second elastic column. According to the C-shaped sealing ring composite soft die bulging device and method, on one hand, the sealing requirement for the bulging device is reduced, so that the structure of the bulging device is simplified, the cost of the bulging device is reduced, on the other hand, due to two-time forming, the forming quality of the C-shaped sealing ring is improved, loss of the first elastic column and the second elastic column is reduced, and the bulging efficiency is improved. And the cost is further reduced.

The present invention relates to a method and system for generating a curved surface machining path for an ultra-precision diamond lathe, which mainly obtains three-dimensional point cloud data of a surface to be machined through a three-dimensional scanning device, performs global curvature calculation, and divides the surface into multiple sub-areas to generate an initial machining path. Subsequently, the initial path is optimized to reduce interference and errors, and finally a fully verified target machining path is obtained. This path is imported into a lathe for machining to achieve high-precision curved surface machining. The method improves machining accuracy and surface quality, ensuring higher finish and shape accuracy in ultra-precision machining.