12results about How to "Easy chip removal" patented technology

The utility model relates to lathe technical field provides a good micro - numerical control lathe of chip removal, solve the problem that lathe horizontal work surface falls the chip not easy clearance and the chip falls into the guide rail and influences the problem of tool rest feed. Scheme, the work surface of bed body is inclined surface, the lathe still includes: X axle assembly, include: a) X axle bottom plate, set up on the work surface of bed body, have X axle guide rail on it, b) workbench, slide connection in X axle guide rail, its upper portion is fixed with tool rest, c) first linear drive assembly, drive workbench and move along X axle direction, d) X axle protection assembly, install in workbench X axle direction both ends, protect X axle guide rail, Z axle assembly, include: a) Z axle guide rail, set up in the work surface of bed body, X axle bottom plate bottom slide connection in Z axle guide rail, b) second linear drive assembly, drive X axle bottom plate and move along Z axle direction, c) Z axle protection assembly, install in X axle bottom plate Z axle direction both ends, be used for protecting Z axle guide rail.

This utility model discloses a laser cutting and engraving stage, belonging to the field of laser cutting technology. The laser cutting and engraving stage includes a frame and multiple sets of elongated support plates. Each support plate has a first working surface and a second working surface. The frame has a working area, and multiple equidistant limiting grooves are formed on the inner walls of both sides of the working area. The two ends of the support plates extend into the limiting grooves. When the first working surface is horizontal, the support plate is in a first working state; when the second working surface is horizontal, the support plate is in a second working state. This utility model, by creating limiting grooves within the frame and extending the two ends of the support plates into these grooves, and by having both a first and a second working surface, allows for switching between honeycomb and blade-type stages through the switching between the first and second working surfaces. This eliminates the need for additional stage types, reduces operating costs, minimizes space occupation, and improves performance.

The utility model discloses a kind of concave composite chamfering cutter, belong to machining tool design technical field, the composite chamfering cutter includes two center symmetrical cutter teeth, cutter tooth is composed of back rake face, oblique front and cylindrical arc surface, wherein: the included angle range of back rake face and vertical face is 35 ° to 50 °, the included angle range of oblique front and vertical face is 8 ° to 15 °, cylindrical arc surface is the extension of cylindrical cutter body, the top end of cutter tooth is also provided with tooth end face, the included angle range of tooth end face and horizontal plane is 3 ° to 8 °. Compared with prior art, the composite chamfering cutter carries out mirror image processing to the two blades of tool, and designs specific cutter tooth angle, and the oblique front of specific angle can effectively increase the strength of tool, facilitate chip removal, and the back rake face of specific degree can reduce the wear of cutting edge while reducing vibration;The stability and service life of tool are improved, and the overall tool can effectively reduce the vibration interference in the machining process during the machining process, to ensure the stability and consistency of machining quality.

The invention relates to the technical field of ceramic matrix composite part machining, in particular to a ceramic matrix composite flow guide plate machining method which comprises the steps that a part blank of a fan-shaped section structure is machined, a central positioning hole, a fan-shaped section bevel edge, an inner arc edge and an outer arc edge are roughly machined through long-pulse laser, and then the fan-shaped section bevel edge, the inner arc edge and the outer arc edge are machined; performing finish machining on the outer molded surface, the bevel edge of the fan-shaped section, the inner arc edge, the outer arc edge, the inner molded surface and the central positioning hole by adopting ultrasonic vibration auxiliary milling equipment, and finally performing laser machining on the air film hole; and the whole ring blank is machined, ultrasonic vibration auxiliary milling equipment is firstly adopted for machining, then laser machining is conducted on the air film hole, then long-pulse laser is adopted for cutting the whole ring blank into a part blank, and finally the ultrasonic vibration auxiliary milling equipment is adopted for conducting finish machining on the part blank. According to the method, long pulse laser cutting and ultrasonic vibration auxiliary milling machining are combined, and the air film holes are machined through laser, so that the machining stability, efficiency, reliability and quality of the ceramic-based composite material flow guide plate can be improved.

This invention relates to the field of coating technology, and discloses a composite CVD coating, its preparation method, and its application. The coating comprises, from the inside out, a base layer, a first spacer layer, a first composite layer, and a second composite layer, arranged sequentially on the surface of a substrate. The first composite layer consists of a transition layer and a second spacer layer; the second composite layer consists of a third spacer layer and a surface layer; both the base layer and the surface layer are TiN; the first, second, and third spacers are MT-TiCN, κ-Al₂O₃, and TiC, respectively; the transition layer includes HT-TiCN and TiCO. The coating provided by this invention has good adhesion, strong resistance to crack propagation, and excellent overall coating quality; simultaneously, the coating particles are fine, and the surface roughness is low, which is more conducive to chip removal during processing.

The application discloses a low-voltage pulsating electric composite flexible cutting processing method, which mainly characterized by: using low voltage instead of traditional high voltage discharge, lower than the plasma maintaining voltage can still carry out the electric discharge machining and the electric discharge process not only exists the electric arc discharge but also accompanies the spark discharge, effectively shortens the gap discharge distance, and greatly reduces the stray corrosion range that may be produced in the electrolytic processing process; using the intermittent electric field, the periodicity of the plasma discharge and the electrolytic reaction can be controlled; using the alkaline solution as the electrolyte, the alkaline solution has good ion conductivity, can guarantee the stable electric field and current, can promote the dissolution and removal of the workpiece material through the chemical action of the alkaline solution; using the tube electrode rotating mode, the narrow gap energy field quasi-equilibrium state pulsating effect is realized and the chip removal is strengthened by the continuous rotation of the tube electrode, the high-pressure internal liquid and the pulse power supply (referred to as "machine-liquid-electricity") coupling effect, the low-voltage mixed plasma pulsating thermal effect, fluid effect and electrolytic reaction are organically combined, and high efficiency, low cost and high quality are realized for the machining of the difficult-to-machine material large-thickness straight surface parts.

The invention provides a milling cutter with differentiated cutting edge passivation parameters and a machining method. According to the milling cutter, the passivation radius of the cutting edge close to the rear cutter face is not equal to the passivation radius of the cutting edge close to the front cutter face; the cutting edge is close to the passivation radius of the rear tool face or close to the passivation radius lt of the front tool face; the thickness is 0.05 mm; the length of the passivated area of the rear tool face in the cutting edge direction accounts for 60%-85% of the total length of the cutting edge of the rear tool face; the length of the front cutter face passivation area in the cutting edge direction accounts for 60%-90% of the total length of the cutting edge of the front cutter face. According to the machining method, when the passivation radius, close to the rear tool face, of the cutting edge is increased, and the passivation radius, close to the front tool face, of the cutting edge is reduced, the proportion of the length, in the cutting edge direction, of the passivation areas of the front tool face and the rear tool face to the total length of the cutting edges of the front tool face and the rear tool face is adjusted and controlled, and therefore the rear tool face can make better contact with a workpiece. On the contrary, the proportion of the length, in the cutting edge direction, of the passivation area of the front cutter face and the passivation area of the rear cutter face to the total length of the cutting edges of the front cutter face and the rear cutter face is adjusted, so that the front cutter face can effectively promote chip removal. According to the invention, differentiated requirements on the performance of the rake face and the flank face under diversified processing scenes can be met.

This invention discloses a connection structure and fastener, comprising a fastener including a body, an insert portion disposed at one end of the body, and a washer installed within the insert portion. The body has an axially penetrating inner hole, the inner wall of which has an internal thread adjacent to the insert portion. The washer is interference-fitted with the insert portion, thereby forming a blind hole in the fastener. The other end of the body also has a riveting portion; a plate having a riveting hole for connecting with the riveting portion, the fastener being interference-fitted with the plate; and a bolt including a threaded shank threadedly connected to the body of the fastener and a nut connected to the end of the shank away from the fastener. The bolt is used to fix at least one connector, the connector being fitted against the side of the plate away from the fastener, and the nut abutting against the other side of the connector, thereby fixing the connector. In this invention, the internal thread of the fastener penetrates the body, having a longer effective thread length within a limited axial space, thereby ensuring connection strength.

This invention relates to the field of laser cutting technology, and provides a laser cutting device for processing laptop casings, including an operating table and a laser cutting head mounted on its top; a movable frame is installed inside the operating table, and clamping structures are provided on both sides of the movable frame; a longitudinal plate is installed inside the movable frame, and a transverse plate is installed at the bottom of the longitudinal plate. This invention, through the clamping structure, incorporates a gear and rack mechanism between the outer support bar and the inner support block. When the outer support bar is in operation, the second rack meshes with the gear, driving the inner support block to move horizontally towards the inner wall of the casing sidewall, forming an adaptive inner support that extends into the sidewall. When laser cutting the top of the sidewall, this provides reliable back support for the thin-walled sidewall, effectively avoiding vibration, tool deflection, or deformation caused by lack of support. Simultaneously, the narrow edge design of the inner support block avoids the rounded transition section at the corner of the sidewall, ensuring the fit of the support and the integrity of the processing.

The utility model discloses a multi-step expanding and reaming integrated composite cutter which comprises a handle portion, a reamer section and an expanding cutter section are sequentially arranged at the working end of the handle portion, the longitudinal section of a cutting edge of the expanding cutter section is in a step shape, the diameter of each layer of cutting edge is gradually increased from top to bottom, and the handle portion, the reamer section and the expanding cutter section jointly form an expanding cutter body. An end part cutting edge is arranged at the end part of the working end of the expanding reamer body, and a chip groove is formed in the working end of the outer wall of the expanding reamer body. The problem that long-strip-shaped and large-sheet-shaped metal chippings are generated during metal machining of an inner cavity of an existing part is solved.

The utility model discloses a drilling and tapping machine convenient for chip removal, which belongs to the technical field of machining and comprises a frame, an automatic feeding device and a processing and blanking device, and the automatic feeding device and the processing and blanking device used for processing and blanking round tubes are mounted on the frame. The automatic feeding device comprises a feeding clamping assembly used for pushing the round pipes to the machining position, a sequential feeding assembly and an auxiliary clamping assembly, wherein the sequential feeding assembly and the auxiliary clamping assembly are used for sequentially conveying the round pipes to the feeding position of the feeding clamping assembly. By means of the mode, through cooperative operation of the feeding clamping assembly, the sequential feeding assembly and the auxiliary clamping assembly, round pipes can be automatically fed and clamped, drilling and tapping machining treatment can be conducted on the round pipes at the same time in cooperation with the machining device, the production efficiency is high, the labor cost is reduced, and the production efficiency is improved. And waste chips generated by machining are collected through the discharging and collecting assembly and separated from the machined round pipe, the situation that the machining effect is affected by accumulation of the waste chips is avoided, and chip removal is facilitated.

The utility model provides a long -life high -performance screw tip tap has the coarse handle handle, thin neck and screw tip of coaxial connection as an organic whole, the chip flute made of screw tip is three groove structure, and the chip flute of three groove structure is three equal parts distribution relative to tap center axis, and the chip flute groove shape is two straight lines two circular arc form, and the smooth transition between circular arc, the screw tip still is made with straight flute, and the screw tip tap adopts the high -speed steel material of vacuum heat treatment, cryogenic treatment and passivation treatment to make. The utility model solves how to reach the technical problem of high -efficient tapping processing of high -performance screw tip tap product on numerical control equipment, improves tap life, processing high -efficient, quality is stable, long -lived, is fit for promotion.