23results about How to "Guaranteed roundness" patented technology

The utility model relates to gas pipe correction technical field especially, it relates to a kind of PE gas pipe correction clamp, solve the problem that the pipe wall is prone to local indentation, flattening or stress concentration, and new plastic deformation is easily caused in the clamping area of pipe body when only applying correction force from outside in prior art due to the certain flexibility and elasticity of PE material.A kind of PE gas pipe correction clamp, including frame, both sides of frame are fixedly connected with side plate, and the opposite side of two side plates is equipped with arc clamping plate, and the bottom of two arc clamping plates is slidably connected between the bottom of frame, both sides of frame are equipped with support rod, and the one end of two support rods is respectively through both sides of frame.The utility model effectively solves the problem that pipe wall is prone to flattening, indentation or uneven stress due to lack of inside support in existing correction clamp, realizes the simultaneous support and uniform stress of inside and outside of PE gas pipe.

A processing method of eccentric tailstock sleeve, first step, blanking allowance, second step, rough turning to get sleeve blank; third step, high temperature aging treatment to sleeve blank, fourth step, milling right end as eccentric circle φA1 as process chuck and right end step hole φB visible light; fifth step, rough turning eccentric circle φA1 and step circle table φD allowance; sixth step, rough boring left end step circle table φD allowance, get sleeve semi-finished product; seventh step, sleeve semi-finished product heat treatment; eighth step, rough grinding eccentric circle φA1 allowance, ninth step, rough boring left end hole φC, step hole φB and length L allowance; tenth step, semi-fine grinding eccentric circle φA1 and step circle table φD outer circle, end face; eleventh step, low temperature aging treatment, twelfth step, fine grinding eccentric circle φA1 to design size range, grinding step circle table φD outer circle and end face to design requirement; thirteenth step, fine boring step hole φB, hole φC to design size, get eccentric tailstock sleeve finished product.

This invention relates to the field of machining fixture technology, specifically to a rapid clamping device for preventing deformation of thin-walled parts. The device includes a base plate with four support columns on its top side wall. The outer side walls of the four support columns are fixedly connected to the same support plate. The support plate has two sliding strips at its top. One side wall of the support plate has a guiding mechanism for guiding the part. The outer side walls of the support columns are slidably connected to a clamping and positioning mechanism for holding and positioning the part. This rapid clamping device for preventing deformation of thin-walled parts employs an integrated design with the guiding mechanism and the clamping and positioning mechanism working in tandem. The guiding mechanism can precisely and quickly transport the thin-walled part to the designated workstation via transmission. The limiting block and the flipping plate work together to prevent offset and slippage during part transport, ensuring accurate part transport posture.

The invention relates to the technical field of plastic production cooling, in particular to an efficient cooling device for plastic bucket production, a pushing structure is used for pushing a plurality of positioning blocks to move, and a plastic bucket placed on a positioning disc body is positioned; a first lifting air cylinder of the shaping assembly is fixed to the upper portion of a positioning disc body, a supporting rod is fixed to the lower portion of a lifting plate, a plurality of parallel rotating rods are rotationally arranged on the supporting rod, a plurality of vertical supporting plates are rotationally connected with the parallel rotating rods correspondingly, and a pulling structure is used for driving the parallel rotating rods to rotate. The cooling assembly comprises an internal cooling spray head set and an external cooling spray head set, the heat exchange efficiency is remarkably improved through simultaneous action of the internal and external spray head sets, and the problem of shrinkage deformation in the plastic cooling process is effectively solved by actively supporting the inner wall of a bucket through an internal supporting plate and cooperating with clamping of an external positioning block; and the size precision and the roundness of the product are ensured.

The utility model relates to a bending pipe auxiliary tool technical field especially relates to a manual tool for metal conduit big bending radius processing, the utility model discloses disc and rotary support structure are equipped with on the upper portion of bottom plate through shaft A, washer and gasket, and can rotate freely around shaft A, be provided with gyro wheel subassembly on rotary support structure, sliding support subassembly is assembled on the bottom plate, and is located disc one side, and the conduit passes through sliding support subassembly and is supported by sliding support subassembly, and the front end of conduit is placed between disc and gyro wheel subassembly and is clamped by both, and rotates rotary support structure and drives conduit to rotate with disc and completes bending work, the utility model discloses technical scheme solves the problem that the existing bending pipe machine in prior art cannot realize the conduit with too big bending radius, and the bending pipe machine manufacturing cost is high, and the bending pipe object is single.

The utility model discloses a video cable for a robot with a body, which is characterized in that a first shielding tape is lapped outside a cable core formed by twisting at least two signal transmission core wires and at least two electric energy transmission core wires, a metal braid layer is arranged outside the first shielding tape, a sheath layer is coated outside the metal braid layer, and a second shielding tape is arranged outside the sheath layer. A second shielding tape wraps the outer side of a data wire core formed by twisting at least two signal transmission core wires, each of the first shielding tape and the second shielding tape comprises a base material layer and an aluminum foil layer attached to the surface of one side of the base material layer through a glue layer, and the aluminum foil layer of the first shielding tape makes contact with the metal braid layer in an attached mode. According to the utility model, the anti-interference performance can be improved, the anti-bending performance and roundness of the cable can be ensured, and the shielding of high-frequency and low-frequency signals can be realized at the same time so as to improve the signal shielding range.

The present application relates to a kind of whole winding forming wind force rotary drum structure and its preparation method, including mould, comprising: intermediate transition structure;Cap type structure, including cap type longitudinal reinforcement and cap type ring reinforcement;Adjustable precision tooling, including: concentric shaft one and concentric shaft two, concentric shaft one and concentric shaft two are connected by flange and intermediate transition structure centering;Two support structures are respectively detachably set on concentric shaft one and concentric shaft two;Multiple sets of adjusting structure are respectively set on concentric shaft one and concentric shaft two, for the adjustment roundness of cap type ring reinforcement;Wherein, cap type ring reinforcement is set on the outside of adjusting structure, cap type longitudinal reinforcement is set on the outside of cap type ring reinforcement, support structure and intermediate transition structure.The present application utilizes cap type structure and intermediate transition structure to form a set of preparation mould, realizes the whole winding preparation of outer cylinder, saves cost, improves preparation efficiency, and improves the mechanical properties of overall structure.

The present application belongs to the technical field of printed circuit board manufacturing, and discloses a method for laser drilling stepped blind via and a printed circuit board. The method sets a stepped sequence of hole diameters of the blind via to be processed; adopts a via processing mode to set different via rates from the outer ring to the inner ring of the hole, thereby forming a stepped via rate distribution; implements stepped via processing; for the smallest hole diameter, a fixed basic via rate is adopted for processing, and on the basis of the via rate of the smallest hole diameter, one more processing ring is added inward, and the processing ring is added inward on the basis of the via rate of the previous hole diameter; and hole type quality is evaluated. The present application reduces processing cost: under the premise of ensuring quality, the processing time is reduced, the equipment operation cost and the labor cost are reduced, and the production efficiency is improved. The process is controllable: the setting of the stepped via rate has clear design rules and parameter basis, facilitating process standardization and quality control.

The application relates to a manufacturing method of a straight-cylinder metal hand mold for producing an impregnated product, which comprises the following steps: stamping a metal plate to obtain a blank left half palm and a blank right half palm, wherein the blank left half palm and the blank right half palm are sequentially provided with a finger section, a palm section and a wrist opening section in the length direction, the wrist opening section is reserved and shaped with a palm straight-cylinder section at a welding connection position; the blank left half palm and the blank right half palm are edge cut along the contour to obtain a left half palm and a right half palm, the left half palm and the right half palm are matched and welded to form a palm part; a metal pipe is cut to form a wrist cylinder part, a wrist straight-cylinder section is reserved and shaped at one end of the wrist cylinder part; and the palm straight-cylinder section of the palm part and the wrist straight-cylinder section of the wrist cylinder part are welded and connected. The palm straight-cylinder section and the wrist straight-cylinder section are welded and connected, the problem of welding section difference between the palm part and the wrist cylinder part can be solved, the true circularity when the palm part and the wrist cylinder part are welded can be ensured, and the production quality can be effectively improved.

The utility model relates to the technical field of ceramic roller processing, in particular to microwave drying equipment for a ceramic roller blank. The ceramic roller blank microwave drying equipment comprises a box body, a microwave drying assembly, a first conveying chain assembly and a second conveying chain assembly. A heating cavity is formed in the box body, and the microwave drying assembly is arranged on the top of the heating cavity. The first conveying chain assembly and the second conveying chain assembly are arranged in the heating cavity, the box body is provided with a feeding port and a discharging port, and the first conveying chain assembly reciprocates between the feeding port and the discharging port. The first conveying chain assembly is rotationally connected with a plurality of supporting rollers. The first conveying chain assembly is rotationally connected with a plurality of rotating pieces, and each rotating piece is fixedly connected with one supporting roller. Each rotating piece is connected with the outer surface of the second conveying chain assembly in a meshed mode. By the adoption of the ceramic roller drying device, the straightness and roundness of the ceramic roller in the drying process can be effectively guaranteed, and meanwhile the distribution uniformity of water in a ceramic roller blank is guaranteed.

The utility model discloses a kind of stacked pressure tool for motor rotor core, including bottom plate, push mechanism and shaping mechanism. Push mechanism is symmetrically arranged at the both sides of bottom plate, and shaping mechanism is arranged between two push mechanisms. Shaping mechanism includes horizontally movable shaping column, rib positioning column and positioning rib, and the accommodation space is enclosed by the shaping column and rib positioning column, for stacking rotor sheet, and positioning rib and rotor sheet notch are embedded to realize initial positioning. Push mechanism drives pressing plate to push shaping column radial motion by air cylinder, and the shaping of rotor sheet outer circle is realized. Positioning strip can be vertically arranged, for straight slot rotor core forming. It can also be arranged at a certain angle with rotor shaft, for slant slot rotor core forming. The utility model has reasonable structure, clamping and positioning are fast, and the scope of application is wide. It can be compatible with the manufacture of straight slot and slant slot rotor core, effectively shorten the development cycle of new stacked pressure tool, reduce the replacement frequency and production cost of stacked pressure tool.

The utility model relates to a reinforcing cage reinforcing ring tensioner belongs to reinforcing cage production technical field. Including center support piece, the outside of center support piece is provided with multiple groups with its length direction consistent's positioning support rod, multiple positioning support rods are around center support piece's center line arrangement and the included angle of adjacent two is consistent, the support opening mechanism that drives positioning support rod is installed on center support piece close to or away from center support piece, the one end of center support piece is installed with transmission shaft driver, and transmission shaft driver is through transmission shaft and is driven with support opening mechanism transmission connection. The utility model has the following beneficial effect: pull transmission shaft and retreat, and transmission shaft drives positioning support rod away from center support piece through support opening mechanism, and multiple positioning support rods are around center support piece's center line arrangement, until positioning support rod contacts the inner ring of reinforcing ring, and the effect that plays temporary positioning and support to reinforcing ring, and cooperation welding robot can weld multiple reinforcing rings in turn along the axial direction of reinforcing cage, and the efficiency is promoted.

The present application relates to the technical field of hub bearing machining, particularly to a lathe machining equipment and method for hub bearing outer ring, comprising a lathe main body, characterized in that: the lathe main body comprises a lathe shell, an operation panel is connected to one side of the outer wall of the lathe shell, a lathe hatch is arranged on the outer wall of the lathe shell, a lathe bed is arranged in the lathe shell, a large apron and a lead screw driving unit for driving the large apron to move along the bed rail in the axial direction are arranged on the lathe bed; a tool holder base is arranged on one side of the top of the large apron, a turret tool holder is connected to one side of the tool holder base, a cutting fluid spray pipe is connected to one side of the tool holder base, the present application integrates double-spindle driving and a composite clamp system, solves the problems of poor cutting rigidity of thin-walled parts and difficult clamping deformation: double-spindle synchronous transmission + limiting ring constraint, inhibits chatter, ensures roundness and coaxiality; integrated chain-type chip removal + magnetic separation closed-loop cooling, automatically separates and circulates chips and cutting fluid, reduces cleaning intensity.

The invention provides a stator welding system and method with a tensioning function, and relates to the technical field of motor manufacturing, the system comprises a squirrel cage tensioning jig, a rotary driving mechanism, a lifting mechanism, an upper pressure head mechanism and a welding dust removal unit, according to the squirrel cage tensioning jig, arc-shaped tensioning modules distributed in the circumferential direction are synchronously driven by a driving module to move in the radial direction, a stator formed by splicing split iron cores is actively tensioned from the outer side, and the stator preforming function and the welding positioning function are integrated. Automatic feeding and discharging, tensioning, rotary welding and dust removal of the stator are achieved, the problems that a traditional welding mode is high in product tolerance requirement, tedious in procedure, poor in dust removal effect, prone to pipeline winding and the like are effectively solved, production efficiency and welding quality are remarkably improved, and compatibility of stators of different sizes is enhanced.

The invention discloses an extrusion molding device and method for chemical plastic barrel production, and relates to the technical field of chemical plastic barrel production. The plastic extruding machine comprises a plastic extruding machine body, a treatment frame is arranged on one side of the plastic extruding machine body, a discharging hand is installed at the top end of the treatment frame, a waste conveying belt is fixedly installed on the lower portion of the treatment frame, and a cleaning mechanism is arranged in the middle of the plastic extruding machine body and used for cutting off waste of the formed chemical plastic barrels. Comprising two supports fixedly mounted in the middle of the treatment frame; under the driving of the servo motor, forming waste materials at the bottom end (a pouring gate) and a barrel opening of a barrel body can be cut at the same time, traditional manual operation is replaced, the production efficiency is remarkably improved, the consistency of cutting paths is guaranteed through machinery, the problems of uneven notches, different sizes and the like possibly caused by manual cutting are solved, and the production efficiency is improved. And the stability and the uniformity of the product quality are improved.

The utility model discloses a particle beam electrostatic deflector, which comprises an insulating base and an electrode group body consisting of a plurality of groups of poles, a circular cavity is formed in the circle center of the insulating base, a plurality of first through holes are uniformly formed in the circumference of the inner side wall of the cavity, and grooves are formed in the upper end face and the lower end face of the insulating base; the plurality of groups of poles are circumferentially arranged on the insulating base to form a circular array, an insulating gap is arranged between each group of poles and is marked as H. The electrode group body comprises a boss part and a welding part, the diameter of the boss part is larger than that of the cavity, second through holes with the same number as the first through holes are formed in the boss part, and the welding part is welded to the boss part. And the first through hole and the second through hole correspond to each other to form a through hole. According to the utility model, the complex structure of the pole is simplified, the distribution of an electric field in each direction is more uniform, the deflection precision is improved, and the cylindricity and roundness of an electron beam channel hole are ensured.

The application discloses a kind of bonding materials and its preparation method.Preparation method includes the following steps: in bearing appliance is arranged bearing carrier, the bearing carrier includes the first inert liquid layer in bottom layer 350CS~400CS, the second inert liquid layer in intermediate layer 200CS~300CS And the third inert liquid layer in top layer 50CS~100CS;By microfluidic process to generate several droplets on the bearing carrier with mixed solution as liquid phase, wherein the solute in the mixed solution includes 8wt%~10wt% Conductive powder, 8wt%~12wt% dispersing agent and 10wt%~12wt% binder;The bearing carrier containing the droplet is solidified and handled, and several microspheres are formed;And, the microspheres are calcined and handled.The application process is simple, low in cost and without solder residue problem.

This utility model relates to the field of electrical connection cable technology, and in particular to a European standard AC charging interface cable with a bulletproof wire reinforcing core. The cable includes a cable body comprising a central reinforcing core, with multiple main conductors surrounding the outer side of the central reinforcing core. The outer ends of the main conductors are wrapped with long-filament nonwoven fabric, and secondary conductors and filling components are disposed in the gaps between the long-filament nonwoven fabric and the main conductors. A sheath assembly is also sleeved on the outer side of the long-filament nonwoven fabric. The sheath assembly has a double-layer co-extruded structure, including an inner sheath layer and an outer sheath layer arranged sequentially from the inside out. This utility model combines high mechanical strength, excellent electrical performance, environmentally friendly flame-retardant properties, and meets European standard requirements. It is particularly suitable for applications in electric vehicles, industrial equipment, and other scenarios where high mechanical strength, high temperature resistance, and environmental protection requirements are necessary.

The application provides a bending device and method for a heat exchanger coiled pipe, which decomposes the heat exchanger coiled pipe, and decomposes the whole structure into a body spiral part and two end bending parts; a spiral bending device is designed to meet the bending of the body spiral part of the coiled pipe; a pipe end bending device is designed to meet the bending of the pipe end part of the coiled pipe; the spiral bending device comprises a pipe bending unit, an inlet and outlet angle control unit and a pitch control unit, the pipe bending unit implements the bending of the body spiral part of the coiled pipe, the inlet and outlet angle control unit controls the forming angle of the two end bending parts of the coiled pipe, and the pitch control unit controls the pitch of the body spiral part of the coiled pipe. The bending device is adopted to solve the problems of the heat exchanger coiled pipe, such as difficult forming, difficult cleaning of the inner cavity filler, long manufacturing test period of the special mold, poor forming precision of the coiled pipe and the like.

The utility model discloses a kind of pre-insulated tube foaming fixture tool, including the placement component for pre-insulated tube support, the side fixed connection of placement component is used for the abutting plate for pre-insulated tube leaning, the top of placement component movably provided with the clamping plate for pre-insulated tube position clamping, the position of another side of placement component and corresponding clamping plate is equipped with the adjusting assembly for clamping plate adjustment, placement component includes the placement plate for pre-insulated tube support placement, the side of placement plate is provided with connecting bolt one, the side of abutting plate is provided with the screw groove one matched with connecting bolt one.The utility model drives clamping plate horizontal movement by rotating adjusting bolt, accurately adjusts the distance between abutting plate and clamping plate, effectively solve the waste and foaming layer uneven problem produced when pre-insulated tube foaming due to ovality, guarantee its roundness, improve product quality;Different size pre-insulated tube can be adapted, reduce production cost.

This invention discloses a laser cutting device for the metal casing of a mechanical pressure gauge, relating to the field of laser cutting technology. It includes a base and a rotary drive assembly. The rotary drive assembly is located on one side of the base and includes a slide table on one side of the base. Shaft supports are fixedly mounted at both ends of the slide table, and a worm gear is rotatably mounted inside the shaft supports. This laser cutting device for the metal casing of a mechanical pressure gauge uses a single set of cylinders to drive a V-shaped pin to swing, simultaneously achieving multiple actions such as disengaging the contouring mechanism, aligning the workpiece, positioning the slide table, and adjusting the cutting head angle. It can continuously complete two processes—processing the outer contour and inner ring inclined step of the irregularly shaped casing—at the same workstation, eliminating the need for workpiece transfer, secondary clamping, and positioning steps, and completely avoiding dimensional deviations caused by secondary positioning. This improves overall production efficiency and ensures the overall machining accuracy of the workpiece, making it suitable for mass production of such irregularly shaped pressure gauge casings.

The utility model relates to the technical field of printing, papermaking and packaging machinery, in particular to an automatic sectional core-pulling paper tube rolling machine which comprises a rolling mechanism and a pulling mechanism. The rolling mechanism comprises a rolling base and a rolling mechanism, the mandrel is composed of a first drawing pipe and a second drawing pipe, the first drawing pipe and the second drawing pipe are mutually inserted together to form the outer surface of the mandrel, and the mandrel is rotationally arranged on the rolling base; the rolling power piece is arranged on one side of the core shaft and used for driving the core shaft to rotate so as to roll the paper into a barrel shape; the positioning head is arranged on the other side of the core shaft and is used for positioning and correcting the core shaft; the pulling mechanism comprises a pulling base and a pulling rod, one end of the sliding block is connected with the mandrel; the drawing power piece is arranged on one side of the drawing base, and the drawing power piece drives the sliding block to slide on the drawing base through linkage with the rotating lead screw; and the core shaft is pulled from the rolling base to the pulling base.

The utility model relates to a roller stand device technical field especially relates to a roller stand for cylinder inner baffle welding. Including base and sixth power mechanism, the base is fixed with support bracket, two groups of opposite roller groups are rotationally arranged on the upper end of support bracket, and the sixth power mechanism drives the rotation of roller group, and the both sides of support bracket are each equipped with a plurality of arm embracing subassembly, and the arm embracing subassembly includes second telescopic mechanism, side support frame, third telescopic mechanism and arm embracing board, and the side support frame is located at one side of the cylinder and is hinged on the support bracket at its lower end, and the second telescopic mechanism is located at the side of side support frame away from the cylinder, and the third telescopic mechanism is fixed on the side support frame, and the output end of third telescopic mechanism projects side support frame and is connected and fixed with one side of arm embracing board, and the side of arm embracing board close to the cylinder is attached with the outside of the cylinder. Through the arm embracing board in arm embracing subassembly, the cylinder is embraced tightly, and the roundness of the cylinder is guaranteed, so that the inner baffle can enter the cylinder more easily.