65 results about "Tool marks" patented technology

Methods of reducing tool marks in incremental forming are disclosed. The disclosure provides a method of incrementally forming a workpiece. In one form, the method includes securing a sacrificial material layer to at least one surface of the workpiece, directly applying a force to the sacrificial material layer by at least one forming tool, and incrementally forming the workpiece into a desired geometry based on a tool path of the forming tool.

A method for autopicking of bedding in a well includes receiving image logs associated with the well, eliminating tool marks from the image logs, performing a grid search for (1) a vertical amplitude and (2) a horizontal shift of the bedding at plural sampling depths to obtain a predicted bedding, calculating an azimuth and a dip of the predicted bedding, and generating an image of the predicted bedding, wherein the image includes structural features of the well.

The utility model relates to the technical field of fixture, concretely relates to a clamp for water pipe orifice processing, including setting installation board on lathe, one side of installation board is provided with the connecting plate, the middle position of connecting plate is provided with telescopic device, the working surface of connecting plate is provided with the fixed plate for positioning orifice body, the top of fixed plate is provided with the pressure joint block, the bottom of pressure joint block is hinged with telescopic device, has improved the stability when fixing, uses the lathe tool to produce roundness better without the joint tool mark, and product quality is reliable.

The invention discloses a PCB production process for enhancing the binding force of semi-buried copper and a PCB, and the PCB production process comprises the following steps: S1, providing a copper block, and carrying out the roughening of at least one side surface, to be combined with a prepreg, of the copper block, so as to form a machining knife pattern on the side surface; s2, placing the roughened copper block in a window pre-formed in the core board or the inner-layer circuit board to form a semi-buried copper structure; s3, overlapping at least one prepreg on the surface of the semi-buried copper structure; and S4, a pressing process is carried out, the prepreg resin in the molten state flows into and fills the machining cutter lines on the side faces of the copper blocks, and after cooling, the prepreg resin and the copper blocks form a mechanical interlocking structure. The PCB is manufactured by using the PCB production process.

The invention provides an inner hole turning tool, an inner hole arc groove forming method and device and a storage medium. The inner hole turning tool comprises a tool body and a cutting part arranged at one end of the tool body; the cutting part is provided with a group of symmetric surfaces, and the axis of the cutter body is located on the symmetric surfaces; the cutting part is provided with a front tool face, a first rear tool face and a second rear tool face, and the intersection point of the front tool face, the first rear tool face and the second rear tool face is a tool nose of the cutting part; the intersecting line of the first rear tool face and the front tool face is a first main cutting edge of the cutting part, the intersecting line of the second rear tool face and the front tool face is a second main cutting edge of the cutting part, and the first main cutting edge and the second main cutting edge are symmetrically arranged relative to the symmetric plane; according to the inner hole turning tool, the first main cutting edge or the second main cutting edge can be correspondingly selected for turning according to different feeding directions of the inner hole turning tool, interference between the inner hole turning tool and the arc groove can be avoided, tool marks on the wall face of the arc groove can be avoided, and the machining precision and the forming quality of the arc groove can be improved.

The embodiment of the utility model provides an anti-seismic round nose knife, which comprises a core part, which comprises an end surface and a peripheral surface which are connected with each other; the cutting edges are arranged on the core part, the cutting edges spirally extend to the peripheral surface from the end surface, each cutting edge comprises a sleeking edge, each sleeking edge extends to the other end from one end of the corresponding cutting edge, and the sleeking relief angle of each sleeking edge is 0.2-1.5 degrees. The shock-resistant round nose knife provided by the embodiment of the utility model at least has the following beneficial effects that the sleeking edge is arranged on the cutting edge, the sleeking edge extends from one end of the cutting edge to the other end of the cutting edge, the sleeking relief angle of the sleeking edge is 0.2-1.5 degrees, and the sleeking edge is coherent and has a proper sleeking relief angle, so that on one hand, the sticky chips are not easy to generate, and the service life of the round nose knife is prolonged; and on the other hand, the anti-seismic effect is good, the quality problems such as cutter vibration lines are not prone to being generated, and good surface quality can be machined.

This invention discloses an adaptive reconstructive post-processing method for overtravel of rotary axes in a dual-swivel-head five-axis machine tool, belonging to the field of CNC machining technology. The method first establishes a rotary axis state observer based on historical cache to monitor the state increment of the rotary axis in real time. By constructing a dewinding and abrupt change feature discrimination model, it determines the graded adaptive tool retraction distance. When a risk of overtravel or abrupt change in posture is detected, it triggers an axis-wise tool retraction based on tool axis isovector constraints, ensuring the tool retracts along the cutting vector line to avoid interference. Subsequently, after physical rewinding, the kinematic solution boundary conditions of the post-processor are corrected through a virtual state injection mechanism. Historical states are used as initial solution constraints for secondary solving, forcibly maintaining consistent head polarity. This invention maximizes continuous machining travel capability through seamless path reconstruction, eliminates tool marks caused by posture flipping, and significantly improves the surface consistency and efficiency of precision layered machining.

The invention provides a variable-depth multi-step ablation inhibition method for CO2 laser ablation knife lines of a fused quartz element, and belongs to the field of laser processing of optical elements. The invention aims to solve the problems that medium-frequency ripples are generated during conventional ablation of a fused quartz element, namely high processing knife lines influence the light transmission, and the service performance of a functional microstructure and the surface quality of a processing element are greatly influenced. According to the method, a processing strategy of gradually decreasing the ablation depth and a dislocation processing method adopted in each step of ablation processing are adopted, so that the height of the ablated knife lines on the processed surface of the fused quartz element can be effectively reduced, the surface roughness after processing is further reduced, the light transmission performance and the light transmission performance of a processed microstructure are improved, and the quality of the processed fused quartz element is ensured.

This invention relates to the field of CNC machining and motion control technology, specifically to a method, system, and storage medium for interpolation connection processing of S-shaped speed curves. This method addresses the speed fluctuations and uneven machining marks caused by the asynchronous connection points between segments and the interpolation cycle in existing global S-shaped speed planning by proposing a reverse extension compensation mechanism. The steps include: when entering a new curve segment for interpolation, if there is residual motion and the motion stage is continuous, the current motion stage is extended backward by one interpolation cycle in the time domain; by solving the displacement equation, the historical time point corresponding to the residual motion in the current stage is accurately calculated; and the system's time state is corrected accordingly, thereby achieving smooth and accurate connection between segments. This invention effectively eliminates the deviation between interpolation commands and speed planning, solves the speed fluctuation problem caused by toolpath deflection, makes the tool marks more uniform, and improves machining quality.

The present application belongs to the field of aviation manufacturing, and specifically relates to an automatic polishing planning and decision method for an aircraft structural member, comprising the following steps: positioning of a structure member to be polished and a web area; single-web multi-angle imaging image combination judgment; identification and positioning of a transition area of a tool mark; regional refinement data scanning; final web area polishing boundary data acquisition; first web polishing area planning; spatial non-interference distance measurement; determination of remaining web to be polished based on a cyclic planning method; generation of a polishing program for polishing; polishing treatment; and polishing area re-inspection. Compared with a traditional manual polishing method, the polishing area planning strategy proposed in the present application can fully consider the positions of adjacent polishing areas and the corresponding attributes of polishing features, can obviously reduce the generation of invalid polishing paths, and can effectively improve the efficiency and quality of the whole-process polishing of an aviation structural member.

The utility model provides a kind of fixture for solving machine tool commutation line, including wedge, base and processing platform, base and processing platform are integrated structure, wedge side is equipped with inclined plane, inclined plane is symmetrically provided with mounting hole, base is symmetrically provided with positioning hole, bolt is sequentially passed through positioning hole and mounting hole and is fixed on wedge with base, processing platform bottom surface is fixedly connected with base, processing platform top is equipped with concave spherical surface, concave spherical surface is downward inclined, concave spherical surface is used to carry lens mold, ball cutter is along concave spherical surface surface path from concave spherical surface edge highest point until concave spherical surface edge lowest point all the way downlink processing.The utility model changes concave spherical surface space posture, completely avoids the path that ball cutter drops again climbs in traditional processing, avoids generating commutation line, since all the way downlink cutting makes that tool mark is continuous even, can improve surface quality and surface roughness, since avoiding commutation impact, can prolong the service life of tool, reduce tool changing frequency.

To provide a rotary marking tool capable of clearly marking even a corner part of a fastening member whose size and shape are not constant, and a marking method to the fastening member using the same.SOLUTION: The rotary marking tool comprises a body 10 functioning as a grip part, a flexible marking roller 20 rotatably supported by the body 10, and an ink supply part 30 for supplying ink to the marking roller 20, wherein a marking surface 23 of the marking roller 20 is formed of a flexible non-porous material such as silicone rubber.SELECTED DRAWING: Figure 1

A tool mark identification method for analyzing bone surface modifications includes receiving a plurality of known images with known attributes, receiving a plurality of unidentified images with unknown attributes including aberrations, aligning the received plurality of known images to thereby generate a plurality of aligned known images, aligning the received plurality of unidentified images to thereby generate a plurality of aligned unidentified images, training a model using the plurality of aligned known images to thereby form a trained model, and applying the plurality of aligned unidentified images to the trained model, thereby predicting tool marks that generated the aberrations in the unknown attributes.

The invention provides an accurate grinding roller curved surface contour forming method, and belongs to the technical field of curved surface body machining. Comprising the steps of blanking, rough turning, heat treatment, semi-finish turning of end faces, rough grinding of rolling surfaces, finish turning of two end faces, grinding of the two end faces, finish grinding of the rolling surfaces and ultra-finish of the rolling surfaces. In order to prevent the rolling surface from having tool marks after rough turning, the blanking length is equal to the length of the two blanks; after blanking, rough turning is conducted on the blank, and turning is conducted on the position where the center is connected with the tool mark to form two rollers; after rough turning is finished, heat treatment salt bath quenching treatment is conducted; after heat treatment, turning an end face as a centerless grinding machining end face reference; roughly grinding a rolling surface after semi-finish turning the end surface, and removing heat treatment black skin; roughly grinding the rolling surface and then finely turning two end surfaces; performing semi-fine grinding on rolling surfaces after two end surfaces are subjected to finish turning, and roughly forming a logarithmic curve profile at the moment; two end faces are ground after the rolling face is semi-finely ground, so that the end face benchmark of the finely ground rolling face is guaranteed; after two end surfaces are ground, the rolling surface is finely ground, and a logarithmic curve profile is basically formed and then the rolling surface is superfinely ground.

The invention relates to the technical field of numerical control machining and motion control, in particular to a cross-path-segment interpolation method, system and device based on time domain expansion and a medium. The current effective stage of a speed curve is reversely prolonged by an interpolation period, and backtracking calculation is carried out based on the interpolation residual period and the residual motion amount; the time point corresponding to the residual motion amount in the current stage is accurately calculated, smooth transition of intersegment connection points is achieved, the actual step is made to be consistent with the speed plan by further establishing a motion amount balance equation, and particularly accurate matching is achieved at the connection points. According to the method, on the premise that the method is not limited to a constant-speed section, multi-section path accurate interpolation of a cross-path section is achieved, the actual movement track is highly consistent with the speed planning height, microcosmic speed fluctuation caused by discontinuous transition between the sections is eliminated, the tool path is smoother, and therefore more uniform tool patterns are obtained on the machined surface, and the machining precision is improved. And the surface smoothness of the workpiece is obviously improved.

The utility model discloses a plastic-coated pipe peeling tool which comprises a bottom plate installed at the input end of a winding machine, sliding block side plates are installed on the front side and the rear side of the left end and the right end of the top of the bottom plate respectively, a sliding block is installed between the sliding block side plates on the front side and the rear side in a sliding mode, a fixing block is installed on the outer side of the sliding block, and the fixing block is connected with an adjusting hand wheel. A fixing plate is installed on the outer side of a side plate of the sliding block, an adjusting hand wheel is rotationally arranged on the fixing plate, threaded holes are formed in the two ends of the inner side of the sliding block, the sliding block is connected with an equal-height screw through the threaded holes, the rod portion of the equal-height screw is slidably connected with a knife rest, a peeling knife is installed on the knife rest, and a rectangular spring is installed between the knife rest and the sliding block. The metal hose peeling device is small in overall structure, convenient to disassemble and assemble and easy and labor-saving to operate, machining time is saved, efficiency is greatly improved, tool marks on the surface of a peeled metal hose are shallow, and plastic coating machining is not affected again.

The invention relates to the technical field of polishing jigs, in particular to an embedded type cavity polishing jig and a manufacturing method. In the industry, CNC carving is adopted for producing a polishing jig, burrs and knife patterns are prone to being generated and need to be removed through manual grinding, and the machining efficiency is low; a fiber rubber plate is generally adopted as a polishing jig, the rigidity is too high, the flexibility is insufficient, and when brittle materials are polished, the defects of edge breakage, scratches, edge raised grains and the like are prone to occurring. According to the embedded type cavity polishing jig and the manufacturing method, the jig base plate is manufactured through the punch forming process, burrs and knife lines are avoided, manual grinding is not needed, and the machining efficiency is improved. The jig base plate is provided with the cavity, the flexible inlay strip is tightly attached to the inner wall of the cavity, and the flexible inlay strip can absorb collision energy during polishing, so that the defects of edge breakage, scratching, edge raised grains and the like of the polishing piece made of the fragile material are reduced, and the yield of the polishing piece is increased.

This invention provides a titanium plate grinding machine, comprising a gantry frame, a grinding assembly, and a drive assembly. The drive assembly is mounted on the gantry frame. The grinding assembly includes a grinding head beam mounted on the drive assembly and a grinding head assembly mounted on the grinding head beam. The grinding head assembly is a four-grinding-head structure, including a first grinding head, a second grinding head, a third grinding head, and a fourth grinding head. The drive assembly includes a traveling motion device, a lateral movement device, and a lifting device for driving the grinding head assembly to move in three-dimensional space. This invention employs a four-grinding-head structure, coupled with an inverted T-shaped grinding head beam, significantly improving grinding efficiency and equipment stability, and avoiding tool marks. All motion axes are upgraded to servo control, improving grinding accuracy and uniformity. The grinding wheels are locked with flange bolts, simplifying disassembly and assembly and ensuring grinding quality. A new spray cooling system and a removable sludge tank are added to achieve centralized waste removal and water resource recycling.

This utility model provides a side-milling tool, comprising: a neck; and a core connected to the neck and having a cutting edge, the cutting edge including a transition edge and a tangential edge, one end of the transition edge connecting to the tangential edge and the other end connecting to the neck, the diameter of a first cutting profile formed by the neck being smaller than the diameter of a second cutting profile formed by the tangential edge, and a third cutting profile formed by the transition edge being an arc segment, one end of which is tangentially connected to the first cutting profile and the other end of which is tangentially connected to the second cutting profile. This side-milling tool avoids the risk of chipping and chip adhesion at the cutting edge, as well as the occurrence of tool marks.

The invention discloses a machining method for a high-precision aluminum-based silicon carbide coaxial aspheric reflector. The machining method comprises the steps of machining and heat treatment, knife pattern removal through a small grinding head, surface nickel plating, single-point turning, magneto-rheological polishing and small grinding head polishing. The special tool is matched with the engraving and milling machine to integrally machine the aspheric surface on the mirror blank, and multiple heat treatment procedures are inserted in the machining process, so that the internal stress generated by the machining process is effectively reduced; and chemical modification is carried out to meet the use requirement of an optical-grade mirror surface, and the use requirement of an aspheric reflector is finally met through mirror surface turning and magneto-rheological and small grinding head fine polishing of nickel layer metal. According to the invention, the processing period is shortened, the precision is high, the stability of the optical system is effectively ensured, and the weight of the system is greatly reduced. The method can be widely applied to the technical field of aspheric metal reflector machining.

A punching device includes a fixed frame, a lower die holder, and an upper die holder. The lower die holder includes a lower base body, a cutting groove, and a stop seat. The lower base body has a narrow through groove, the cutting groove is located on the lower base body and connects to the narrow through groove, and the stop seat is located in the narrow through groove and faces the cutting groove. The upper die holder includes an upper base body and a punching die. The upper base body is vertically connected to the fixed frame, and the punching die is fixedly connected to the upper base body and aligned with the cutting groove for extending into the cutting groove and punching the sheet metal workpiece. The end of the punching die has a cutting edge, which is divided into a single inclined surface and a pressing plane. The pressing plane is adjacent to the single inclined surface and faces the stop seat. With the above structure, this invention can help improve the punching edge of the sheet metal workpiece, avoiding defects such as obvious tool marks, thereby effectively improving the edge smoothness and precision of the sheet metal workpiece.

The invention discloses a defect detection method and system for a casting machining face, and the method comprises the steps: collecting the casting machining face of a machined casting through an industrial camera preset in machining equipment in the process that machining equipment carries out the casting machining based on current tool technological parameters, and obtaining a to-be-detected casting image; identifying each suspected defect area existing in the to-be-detected casting image through a preset basic visual defect detection model; extracting image features of each suspected defect area, and fusing the image features with the current tool process parameters to obtain comprehensive features of each suspected defect area; inputting the comprehensive features into a pre-trained processing parameter-cutter pattern image feature correlation model, and outputting the probability that each suspected defect region is a cutter pattern type; and screening the suspected defect area with the probability smaller than a preset knife pattern judgment threshold value as a real defect area. Therefore, by the adoption of the method and device, misjudgment of the knife lines can be effectively avoided, the production cost is reduced, and the economic benefits of enterprises are improved.

The invention provides a processing technology of an internal spiral surface, and aims to solve the problems that the processing technology known at present is an electrolytic method, and the processing technology has the defects of low processing efficiency, high energy consumption and poor precision. The inner helical surface machining process comprises the steps that two spindles are installed on a machine tool, one spindle is a tool spindle, the other spindle is a workpiece spindle, the axis of the tool spindle is parallel to the axis of the workpiece spindle, an eccentric distance is formed between the axis of the tool spindle and the axis of the workpiece spindle, and the tool spindle and the workpiece spindle move in the axial direction; the rotation of the cutter main shaft, the rotation of the workpiece main shaft and the axial movement are carried out according to a specific rule, so that an inner spiral surface can be machined according to the movement track of the cutter point; the position of the tool nose and the initial angle of the tool are continuously changed, and a group of internal spiral surface groups can be machined, so that an assumed internal spiral surface with the residual height of the tool grains is formed; the machining method has the beneficial effects that the machining efficiency and precision are high, the surface roughness is good, machining is achieved, and energy consumption is low.

The invention discloses an arc-shaped quartz plate machining method, and aims to overcome the defects that the material utilization rate is low and tool marks exist on the surface in the machining process of an arc-shaped quartz plate. The method comprises the following steps that S1, a female die and a male die are installed in a heating furnace, an arc-shaped concave face is arranged on the upper surface of the female die, a quartz plate is loaded on the female die, an arc-shaped convex face is arranged on the lower surface of the male die, and the arc-shaped convex face is arranged above the quartz plate; s2, the heating furnace works, the quartz plate is heated and softened, the convex mold presses the quartz plate, and the softened quartz plate is bent and then clamped between the arc-shaped convex surface and the arc-shaped concave surface to form an arc-shaped quartz plate; and S3, cooling and then unloading the arc-shaped quartz plate. According to the arc-shaped quartz plate machining method, machining of the large-size arc-shaped quartz plate can be achieved, material removal operation does not exist in the machining process, the material utilization rate is high, tool marks do not exist on the surface of the arc-shaped quartz plate, and the quality of the arc-shaped quartz plate is high.

The invention discloses a super-smooth polishing method for a large-diameter complex curved surface NiP composite material reflecting mirror. The method comprises the steps that a large-diameter complex curved surface element polishing path is planned; the high-speed rough polishing stage is used for removing turning tool marks; a fine polishing stage with nanoscale roughness; an ultra-smooth polishing stage of performing atomic-scale removal to obtain sub-nanometer roughness; and a multi-stage progressive cleaning stage ensures high-standard smoothness. According to the method, dynamic path optimization and polishing process optimization are conducted on robot polishing equipment, the complex interactive machining problem of the four dimensions of nickel-phosphorus alloy material characteristics, large-diameter high-gradient complex curved surfaces, ultra-smooth machining and composite metal material smoothness is solved, only the robot polishing equipment is used in the machining process, and the machining efficiency is improved. The device has the outstanding advantages of high efficiency, good stability, high processing quality, low cost and the like.

The decoration plate cutting equipment with the adjustable cutting length comprises a cross rod, a guide sleeve is fixedly installed on the outer wall of the cross rod, graduated scales are arranged at the positions, located on the two sides of the cross rod, of the top of the guide sleeve in a sliding and penetrating mode, and the top ends of the two graduated scales are fixedly connected through a connecting base. A first hand-screwing bolt penetrates through the outer wall of the guide sleeve corresponding to the graduated scale in a matched manner through a threaded hole, and the bottom of the graduated scale is connected with a mounting plate through a linear driving mechanism; when the plate cutting device is used, after a plate to be cut is erected, the size of the graduated scale extending to the position below the transverse rod is adjusted on the guide sleeve according to the needed cutting size, the distance between the two blades is adjusted through the linear driving mechanism, then the transverse rod is attached to the upper end face of the plate, and the transverse rod is pushed to move along the upper end face of the plate. The two blades can move on the two sides of the plate respectively, tool marks are left on the two sides of the plate, then the plate is broken off at the positions of the tool marks, and operation is easy and convenient.

The invention discloses a method for machining an off-axis aspheric reflector. The method comprises the following steps that S1, rough grinding and aspheric surface accurate grinding of the closest fitting spherical surface of a part are carried out on a numerical control machining tool rotary table; s2, fine trimming and polishing are conducted according to the surface shape result of the part, and a polished part is obtained; s3, the off-axis grinding and polishing clamp provided with the polishing part is installed on an edge grinding tool with a compensation function, after the datum line on the off-axis grinding and polishing clamp is aligned with the off-axis edge grinding tool marking line on the edge grinding tool, a three-axis engraving and milling machine is adopted for outer circle edge grinding machining, and an edge grinding part is obtained; and S4, uniformly smearing optical glass protective paint on the surface of the edged part, heating the off-axis clamp adhered with the edged part to 150-200 DEG C, taking down the part after the sealing wax is melted, and cleaning and plating an aluminum reflecting film to obtain the off-axis aspheric reflector. In the machining process, a clamp with an angle compensation function is adopted to clamp a part to be machined, so that the better positioning precision and deflection angle requirements are guaranteed.

The application discloses a machining method of an end face annular groove and relates to the technical field of lathe machining. The method comprises the following steps: S101, forming the profile of the annular groove on the end face of a workpiece to be machined; S102, rotating the workpiece to be machined around the axis of the annular groove to be machined; and S103, performing finish machining on at least part of the inner wall of the profile of the annular groove to form the annular groove, wherein the V-shaped turning tool is moved to a first region to perform finish machining on the part of the inner wall of the annular groove close to a first side wall, the V-shaped turning tool is moved to a second region to perform finish machining on the part of the inner wall of the annular groove close to a second side wall, the second region is located on the other side of the first region relative to the axis of the annular groove, and the first side wall and the second side wall are oppositely arranged. The application can solve the problems that the reverse installation of the V-shaped turning tool or the adoption of a second reverse installation V-shaped turning tool will generate a tool mark or the adoption of a square head groove tool will cause an undesirable roughness when finish machining is performed on the profile of the annular groove.

This utility model discloses a high-gloss eyeglass frame with a large radius (R-angle) structure, including a frame body. The edge of the frame body has a flange structure. The radius (R-angle) of the frame body is R2.5mm, and the wall thickness of the flange structure is less than or equal to 1.5mm. The high-gloss surface of the frame body is machined into a continuous smooth curved surface using a φ4 tool. The connection between the high-gloss surface and the flange structure is achieved through the radius (R-angle). By increasing the radius (R-angle) to R2.5mm, this utility model can completely cover the shrinkage of the flange structure, effectively improving the problem of light reflection and distortion at the edge under illumination, and improving the appearance quality of the product. In addition, using a φ4 tool to machine the high-gloss surface as a whole avoids the generation of tool marks, making the high-gloss surface smoother and flatter, and improving the processing quality of the product.