233results about "Reaming tools" patented technology

A stop for use with an electric drill bit, the stop having at least one threaded sleeve for positioning the stop relative to a surface into which the drill bit will extend. The stop may have both an inner and an outer sleeve. The sleeves are mounted coaxially, one inside the other about the drill bit. One of the sleeves, preferably the inner sleeve, provides coarse adjustment of the position of the shoulder relative to the tip of the bit, while the other, preferably the outer sleeve, provides fine adjustment of the position of the shoulder relative to the top of the bit.

The invention relates to the technical field of metal cutting tools, in particular to a novel spiral groove hard alloy reaming tool and an efficient chip removal structure thereof.The novel spiral groove hard alloy reaming tool comprises a reamer and a main cutting edge arranged at the bottom of the reamer, a cutting set is arranged on the lower portion of the reamer and comprises a first chip removal groove and a second chip removal groove, and the first chip removal groove and the second chip removal groove are formed around the surface of the reamer; the size of the first chip groove is larger than that of the second chip groove. Wherein the edge is lower than the auxiliary cutting edge, and an inclined plane included angle alpha used for assisting chippings to slide into the second chip groove is formed between the auxiliary cutting edge and the edge; the auxiliary cutting edge is flush with the surface of the reamer and is flush with the two ends of the main cutting edge, through the design of the included angle alpha between the edge of the first chip discharging groove and the auxiliary cutting edge and the cooperation of the stepped structure that the edge is lower than the auxiliary cutting edge, the retention space of chips in a transition area is thoroughly eliminated, spiral scratches caused by chip scraping of a traditional cutter are avoided, and the service life of the reamer is prolonged. And a high-precision reference surface is provided for subsequent tapping.

A reamer includes a shank portion extending from a rear end and a cutting portion extending from the shank portion to a front end. The cutting portion includes a plurality of cutting teeth separated by gashes. Each cutting tooth having a cutting edge extending in a longitudinal direction from the front end to proximate the shank portion. The cutting portion includes a margin trailing each cutting edge and extends along each cutting edge to proximate the shank portion. Each cutting tooth also has a primary relief formed between the cutting edge and the front end and a secondary relief extending longitudinally between the margin of one cutting tooth to the cutting edge of an adjacent cutting tooth. A width, W, of each cutting tooth increases in a radially outward direction with respect to the central, longitudinal axis when viewed from the front end of the reamer.

A reamer includes a shank portion extending from a rear end and a cutting portion extending from the shank portion to a front end. The cutting portion includes a plurality of cutting teeth separated by gashes. Each cutting tooth having a cutting edge extending in a longitudinal direction from the front end to proximate the shank portion. The cutting portion includes a margin trailing each cutting edge and extends along each cutting edge to proximate the shank portion. Each cutting tooth also has a primary relief formed between the cutting edge and the front end and a secondary relief extending longitudinally between the margin of one cutting tooth to the cutting edge of an adjacent cutting tooth. A width, W, of each cutting tooth increases in a radially outward direction with respect to the central, longitudinal axis when viewed from the front end of the reamer.

The invention relates to a machining tool and a combined machining method for a radial eccentric stepped hole of an injector disc, and belongs to the field of eccentric stepped hole machining. The machining tool comprises a detachable guide drill, a detachable reamer, a detachable rose reamer and a detachable reamer. According to the structural characteristics of a cutter and a product, eccentric stepped hole machining is divided into four stage processes of drilling, broaching, chamfering and reaming, and drilling, broaching and chamfering, allowance removal and finishing machining are sequentially completed. And step-by-step machining of the eccentric chamfering stepped hole is achieved. The cutter material, the coating, the cutting edge angle and the cutter split structure are machined step by step, the service life of the cutter is prolonged, and the machining efficiency is improved by more than three times. The combined machining method is adopted, cutter deflection is effectively restrained, chamfering uniformity errors are reduced, aperture control is improved, the roughness of the inner surface of the hole is reduced, the machining efficiency of the injector disc is improved, and the combined machining method is suitable for efficient and precise machining of the spaceflight complex step eccentric hole.

The application discloses a cutter for machining a tapered hole and relates to the technical field of cutters. The cutter for machining a tapered hole is characterized by the following: an inner lining assembly is arranged in the cutter body; when the cutter body starts to perform a hole opening operation on a hole opening plane, the cutter body will vibrate; the rubber sleeve arranged in the cutter body can buffer and absorb the vibration and has a protection effect, thereby preventing resonance; the abutting piece and the connecting column arranged in the cutter body can improve the structural strength of the cutter body and the supporting effect from the inside to the outside, thereby preventing the cutter body from being bent or broken during hole opening; the service life of the cutter body is prolonged; the cutter body is matched with the cutting edge; the cutter can open a tapered hole with a certain precision; the generated metal scraps can be automatically discharged through the slag discharge groove; the cutter can prevent the problem of continuous rotation and biting of the cutter in the tapered hole; and the cutter has an auxiliary effect on improving the hole opening precision.

Tool (5) for machining a workpiece (4), comprising: - a tool shank (12) rotatable about a rotary axis (10), - a cutting device (13) arranged on the tool shank (12) with: - at least one pre-cutting element (14) and - at least one post-cutting element (15),- a first slide unit (8) for displacing the at least one pre-cutting element (14) relative to the tool shank (12) with -- a first output body (25) connected to the at least one pre-cutting element (14) and -- a first drive body (23) interacting with the respective first output body (25) via a first drive surface (24) and - a second slide unit (9) displaceable relative to the first slide unit (8) for displacing the at least one re-cutting element (15) relative to the tool shank (12) with -- a second output body (29) connected to the at least one re-cutting element (15) and -- a second drive body (27) interacting with the respective second output body (29) via a second drive surface (28), wherein the first drive surface (24) and the second drive surface (28) overlap each other in an orthogonal projection onto a transverse plane to the axis of rotation (10), thereby characterizedthat a maximum feed path (s1, s2) of at least two of the output bodies (25, 29) is different.

A cutting tool includes a replaceable cutting head including a forward cutting portion and a rearward mounting portion and a head through hole extending therethrough. The mounting portion includes a male coupling member. The male coupling member includes a conically shaped head abutment surface. The cutting tool includes a female coupling member including a conically shaped forward holder abutment surface and an internal thread. The cutting tool includes a fastening member having an external thread. When the cutting tool is in a locked position, the male coupling member is removably retained in the female coupling member by the fastening member located in the head through hole, the fastening member external thread and the holder internal thread being threadingly engaged with each other. The head abutment surface abuts the forward holder abutment surface thereby forming a Morse taper coupling between the male and female coupling members.

The invention provides a dual-V-shaped clamping multi-specification adaptive modular cutter with chip removal and cooling functions, and relates to the technical field of hole machining cutters, the dual-V-shaped clamping multi-specification adaptive modular cutter comprises a cutter bar and a cutting head, the cutting head is provided with a connecting hole, and a positioning rod is arranged at the lower end of the cutting head; the top of the cutter bar comprises a V-shaped end, the inner side of the V-shaped end comprises two V-shaped faces, and the V-shaped end penetrates through the connecting hole through a locking bolt to achieve fixation of the cutter bar and the cutting head. A positioning hole is formed in the bottom of the V end, a pre-tightening assembly matched with the positioning hole is arranged at the lower end of the positioning rod, five-face positioning of the cutting head is achieved through matching of the V end on the cutter bar and the supporting face, in the installation process, by installing the pre-tightening assembly in advance, the cutting head can be conveniently installed in the V end, pre-tightening force can be provided, and therefore the cutting head can be installed conveniently. And the cutting head and the V end can be conveniently fixed by the locking bolt.

Reaming tool for reaming very precise bores, especially in gray and ductile iron, comprising a clamping element adapted for clamping in the clamping devices of machine tools, and a cutting element according to the invention, on the circumferential part of which at least two cylindrical longitudinal support surfaces with an angular distance of 60° to 160° are formed, and on the remaining circumference of the cutting element at least three cutting teeth with longitudinal cutting edges and face cutting edges are formed, wherein a cylindrical longitudinal support surface is formed behind the first cutting tooth in the working direction of rotation and the other cylindrical longitudinal support surface is formed in front of the last cutting tooth in the working direction of rotation, characterized in that at the first cutting tooth (4) the distance (L1) of the intersection point (P1), i.e. the longitudinal cutting edge (9) and the inclined cutting edge (10), from the face plane (π) is smallest and at the last cutting tooth (4'') the distance (L1'') of the intersection point (P1'')that is, the longitudinal cutting edge (9'') and the inclined cutting edge (10'') are greatest from the face plane (π), and at least one cutting tooth (4') is formed between the cutting teeth (4) and (4'') with a distance (L1') of the intersection point (P1'), i.e., the longitudinal cutting edge (9') and the inclined cutting edge (10'), from the face plane (π), wherein, for individual cutting teeth (4') and (4), the distances (L1') and (L1) of the intersection points (P1') and (P1) from the face plane (π) decrease from the distance (L1'') in the working direction of rotation, and the distances (L2) and (L2') between the face plane (π) and the intersection points (P2) and (P2'), i.e., the cylindrical longitudinal support surfaces (6) and (6') and the lead-in surfaces (5) and (5'), decrease by at least 0.2 mm as the distance (L1'') between the frontal plane (π) and the intersection point (P1'') are larger.

The invention relates to a drilling method, in particular for a turbine shaft of an aircraft turbine engine, which method is implemented by a drilling machine (100) including a drill rod (8), a cutting tool (4) mounted on a free end of the drill rod, and an anti-vibration ring (10) positioned on the drill rod behind the cutting tool, the anti-vibration ring including a sleeve including a bore extending longitudinally coaxially between a front end and a rear end of the sleeve, as well as a first absorption means positioned in the bore and a second absorption means positioned on an outer circumference of the sleeve, the method including steps of: a) placing the anti-vibration ring on the drill rod near a free end of the drill rod; b) securing the cutting tool to the free end of the drill rod; c) drilling a bore to be made in the turbine shaft by pushing, during which the anti-vibration ring is inserted into an inlet (21) of the bore to be made.

The drilling and reaming integrated cutter for the engine cylinder block relates to the technical field of engine cylinder block machining and comprises a drill bit and a reinforcing assembly, a cutter containing groove is formed in the side edge of the drill bit, a reamer is arranged in the cutter containing groove, a fixing hole is formed in the side edge of the reamer, an inserting rod is installed at the lower end of the reamer, and the inserting rod is connected with the reinforcing assembly. The reinforcing assembly used for installation and reinforcement is arranged at the lower end of the interior of the cutter containing groove and comprises a reinforcing plate, a limiting hole, a spring and an inner groove, the limiting hole is formed in the middle of the upper end of the reinforcing plate, the spring is installed at the lower end of the reinforcing plate, and the inner groove is formed in the outer portion of the spring. According to the drilling and reaming integrated cutter for the engine cylinder body, the cutter containing groove is used for positioning and rapid installation of the reamer, after the cutting edge of the detachable and replaceable reamer is abraded, the cutter can be continuously used by replacing the blade, the grinding and replacing cost of the cutter is reduced, the service life of the cutter is prolonged, and the machining efficiency of the cutter is improved.

The utility model relates to the technical field of high-precision reamers, and discloses a fine-adjustable reamer which comprises a reamer handle, an adjusting fixing block is fixedly connected to the top of the reamer handle, and a T-shaped sliding groove is formed in the top of the adjusting fixing block. The limiting ring is rotated through the operation groove, so that the limiting ring rotates along the limiting groove, the limiting ring drives the hexagonal adjusting block, the hexagonal adjusting block rotates the threaded rod through the hexagonal avoiding groove, and the threaded rod rotates and descends towards the interior of the reamer handle along the adjusting fixing block; the inner wall of the threaded rod slides downwards along the outer wall of the adjusting block through the hexagonal receding groove, meanwhile, the threaded rod pulls down the adjusting block, so that the adjusting block extrudes the reamer outwards through the inclined face, the reamer drives the T-shaped sliding block to expand outwards along the T-shaped sliding groove, the size of the reamer after abrasion is made up, and the flexibility of the reamer is improved. And the scrapping probability of the reamer is reduced, so that higher machining precision and flexibility are ensured.

The utility model belongs to the technical field of machining, and particularly relates to a floating self-centering reamer which comprises a reamer sleeve, a ball screw and a reamer body, the reamer sleeve is provided with evenly-distributed threaded holes in the radial direction of the reamer sleeve and provided with a square hole in the axial direction, one end of the reamer body is provided with a square boss in the axial direction, and the square boss of the reamer body is placed in the square hole of the reamer sleeve. According to the floating self-centering reamer, the problem that the axis of the reamer does not coincide with the rotation axis of the main shaft in the reaming process can be effectively solved, the reaming quality is improved, the designability of the floating self-centering reamer is good, the structure is simple and reliable, and the floating self-centering reamer is suitable for popularization and application. And the reaming quality of the precision hole can be simply and efficiently improved.

A multi-part modular tool rotatable about a longitudinal tool axis (A), comprising: a machining head; a first holding element comprising a body elongated along the longitudinal axis (A) of the tool, in which a passage extends along the longitudinal axis (A) of the tool; a second holding element which can extend in the passage of the first holding element; wherein the machining head can be connected to the second holding element in such a way that the machining head is fixed firmly to the first holding element at least in the axial direction (A) and / or in the radial direction (R), and wherein the passage of the first holding element and the second holding element are adapted to one another such that during a connection process in which the machining head is connected to the second holding element, the second holding element is movable relative to the first holding element.

The utility model discloses a reamer with a length adjusting function. The telescopic reamer comprises a reamer rod, a telescopic assembly arranged in the reamer rod and a locking assembly arranged on the surface of the front side of the telescopic assembly, the telescopic assembly comprises a bottom groove formed in the lower end of the reamer rod, and when the length of the reamer needs to be adjusted, a rotary knob is twisted to drive a first bevel gear connected with the rotary knob to rotate; a second bevel gear is driven to rotate through meshing of insections arranged on the outer wall, the second bevel gear rotates to drive a screw connected with the second bevel gear to rotate, a telescopic column stably slides up and down in a telescopic groove, and then the distance between a reamer head installed at the upper end and a reamer rod can be stably adjusted. The bolt is twisted to be meshed in the screw groove to move backwards, the clamping block rotationally connected with the rear side surface of the bolt is driven to move backwards, the clamping lines on the rear side surface of the clamping block are clamped and embedded in the clamping lines arranged on the surface of the telescopic column, therefore, the length adjustment of the cutter bar is effectively locked, and the stability after adjustment is guaranteed.

The cutting tool component includes a cutting portion (38). The cutting tool component further includes a plurality of guide pads (56) projecting radially outward from the cutting portion. At least the cutting portion and the plurality of guide pads are manufactured by additive manufacturing, and the plurality of guide pads are integrally formed with the cutting portion in a unitary, one-piece construction. A rotary cutting tool is provided having a cutting insert removably attached to the cutting tool component.

To provide a technology that safely and reliably removes chips and other residues from machine tools while suppressing a decrease in work efficiency. [Solution] The fluid ejection tool 50 is attached to the spindle 3 of a machining center 1A capable of ejecting fluids such as coolant liquid in a center-through manner. The fluid ejection tool is provided on the tip end 54 side and has a lateral through-hole 63 that penetrates to the outside from the inner circumferential surface 60b of the internal flow path 60 and ejects the fluid that has passed through the internal flow path to the outside. The tip end is provided with a tip through-hole 61 that penetrates to the outside along the tool axis. The lateral through-hole is inclined so that the outer opening 63d is closer to the base than the inner opening 63c. The lateral through-hole is provided at a position that is a first distance from the tip and at a position that is a second distance, and both the first distance and the second distance are less than or equal to 1 / 4 of the length of the part of the tool that protrudes from the tool holder along the tool axis direction.

The utility model belongs to the technical field of cutters, and discloses a welding type reaming cutter which comprises an alloy part and a steel body part which are welded into a whole. A spiral alloy groove is formed in the alloy part, a blade part of the alloy part is sequentially provided with a first step section, a second step section and a third step section from front to back, the heights of the first step section, the second step section and the third step section are gradually increased, and cutting cones are arranged at the front end of the first step section, the front end of the second step section and the front end of the third step section. According to the welding type expanding reamer, the defects of insufficient rigidity, poor wear resistance and short service life in the prior art are overcome by the alloy part; the tool is integrated with expanding and reaming, so that the defect of frequent tool changing in the prior art is reduced, the position degree deviation caused by secondary machining due to tool changing is avoided, and the product quality is improved.

The present invention relates to a drill bit and a method of manufacturing a perforated article. In the case where the rigidity of the main shaft of a perforating machine is sufficient, it goes without saying, but even in the case where perforation is performed using a hand-held tool rotation device or the rigidity of the main shaft of the perforating machine is low, a workpiece composed of a composite material or a metal or the like can be perforated with high accuracy. The drill bit of the embodiment has a first cutting edge formed on the leading end side in such a manner that the leading end angle is continuously or discontinuously reduced from the leading end side to the trailing end side, and on the other hand, the clearance angle is continuously or discontinuously reduced from the leading end side to the trailing end side, and is used to perforate a workpiece to form a pilot hole; a second cutting edge formed by being positioned away from the first cutting edge toward the trailing end side, and used to perform finishing of the pilot hole, and having a clearance angle at the maximum diameter position; and a vibration-damping portion formed between the first cutting edge and the second cutting edge, and reducing vibration of the second cutting edge by being inserted into the pilot hole processed by the first cutting edge.

An reaming system can be connectable to a robotic surgical system including an end effector of a robotic arm. The reaming system can include a reaming guide and a reamer. The reaming guide can include a body releasably couplable to the end effector at a proximal portion of the body and a housing located at a distal portion of the body. The reamer can be operable to ream bone. The reamer can include a support releasably couplable to the housing to secure the reamer to the reaming guide and the end effector. The reamer can include a cutting head connected to the support, the cutting head rotatable with respect to the housing when the support is coupled to the housing.

The utility model relates to a micro-small-diameter tungsten steel spiral reamer which comprises a reamer body. The front end of the reamer body is fixedly connected with a connecting part. The front end of the connecting part is fixedly connected with a bearing part. The front end of the bearing part is provided with a second connecting part. The front end of the second connecting part is provided with a second bearing part. The tungsten steel drill bit comprises a spiral cutter part, a spiral cutter head is arranged at the front end of the spiral cutter part, a protrusion is arranged in the center of the front end of the spiral cutter head, abutting parts are evenly arranged on the two sides of the protrusion, the spiral cutter part is connected to the rear sides of the abutting parts, and flow guide grooves are formed in the left side and the right side of the connecting position of the abutting parts and the spiral cutter part. The abrasion resistance of the front end of the micro-diameter cutter is improved, the service life of the whole micro-diameter cutter is prolonged, then the diameter of the whole cutter is reasonably and gradually reduced by arranging the connecting part, the bearing part, the second connecting part and the second bearing part, and the micro-diameter reamer is large in rigidity strength and not prone to being broken.

This rotary cutting tool comprises an outer peripheral cutting edge, a front cutting edge, and a rake face to which a groove has been provided. With respect to the front cutting edge, the outer peripheral cutting edge is positioned in a first direction that is parallel to an axis and goes from a front end of the rotary cutting tool toward a rear end of the rotary cutting tool. The rake face comprises a first rake face portion linked to the outer peripheral cutting edge. The groove comprises a first side wall surface linked to the first rake face portion. A ridge line between the first side wall surface and the first rake face portion is taken to be a first ridge line. In a cross section that is perpendicular to the axis and intersects the groove and that is viewed in the first direction, a virtual line that is perpendicular to the first rake face portion and passes through the first ridge line is taken to be a first virtual line. In the cross section, a tilt angle of the first side wall surface with respect to the first virtual line is 35° to 60°.

The invention discloses an automatic drilling and reaming machine with an aperture fine adjustment function, and relates to the technical field of drilling and reaming machine tools, the automatic drilling and reaming machine comprises a fine adjustment reamer and a hook rod, the fine adjustment reamer is installed on an automatic clamp, the fine adjustment reamer comprises a reamer body, a fine adjustment mechanism and a replaceable reamer blade, the fine adjustment mechanism is arranged in the reamer body, and the reamer blade is arranged on the hook rod. The fine adjustment mechanism is in circuit connection with the main machine control box, the reamer blade is installed on the fine adjustment mechanism, the fine adjustment mechanism conducts fine adjustment on the position of the reamer blade, and the hook rod is rotatably installed below the main machine control box and presses the fine adjustment mechanism. The fine adjustment mechanism composed of the double-thread screw, the upper sliding block, the lower sliding block, the push rotating ring, the blade frame and the like is arranged, hook rod locking and gear transmission structures are combined, accurate and synchronous adjustment of the radial position of the reamer blade is achieved, the precision and consistency of hole diameter machining are effectively improved, and the high-precision reaming process requirement is met.

A cutting tool includes a cutting head including a rearward mounting portion and a head through hole. The mounting portion includes a male coupling member having a non-cylindrical, conically shaped head abutment surface, and at least two driven projections. The cutting tool includes a tool holder having a holder pocket which includes a female coupling member having a non-cylindrical, conically shaped forward holder abutment surface, at least two driving recesses and an internal threaded hole. In a locked position, the male coupling member is removably retained in the female coupling member by a fastening screw located in the head through hole and threadingly engaged with the holder internal threaded hole. The head abutment surface abuts the forward holder abutment surface thereby forming a secure coupling between the male and female coupling members. The driven projections are located in the driving recesses for providing torque transfer between the two parts.

The utility model discloses a large unequally-divided spiral reamer which comprises a spiral reamer handle and a spiral reamer body arranged on the side face of the tail end of the spiral reamer handle. A cutting taper angle is arranged at the tail end of the spiral reamer body, the indexing of the main chip flutes is sequentially 70 degrees and 120 degrees alternately, the back width ratio of the spiral reamer body is 150 degrees and 120 degrees alternately, the cutting taper angle is 0.5 * 30 degrees, the spiral reamer body is slotted through unequal indexing, the angle, the back width and the cutting edge of each edge are different, and the angle, the back width and the cutting edge of each edge are different. According to the improved spiral reamer, grooving is conducted through unequal indexing, the angles, the back widths and the cutting edges of all the edges are different, and therefore the contact frequency and the contact time of all the cutting edges and the surface of a workpiece are different in the machining process, and the vibration suppression effect is achieved. Through the improvement, part of components can be directly replaced when the spiral reamer is damaged.

The compound tool for machining the threaded hole comprises a drill tip, a tool body front section, a tool body middle section, a tool body rear section and a tool body handle, at least two spiral cutting edges used for drilling holes are evenly distributed in the circumferential direction of the tool body front section, and two spiral chip grooves are distributed between the two spiral cutting edges. The spiral chip groove spirally extends to the cutter body middle section, the cutter body rear section is connected to the cutter body handle, the spiral cutting edge spirally extends to the cutter body middle section, the spiral cutting edge located in the cutter body middle section is provided with a spiral reaming edge used for reaming, and the cutter body rear section is provided with a threaded edge used for tapping. According to the composite tool for machining the threaded hole, machining of the threaded hole can be achieved only through one tool, and the problem that the machining precision of the threaded hole is reduced due to positioning errors caused by tool changing of multiple tools is solved. And meanwhile, the machining time can also be shortened, and the machining efficiency of the threaded hole is improved.

The utility model discloses a kind of machine with spiral blade reamer.The utility model includes the handle, clearance and tool body sequentially coaxially connected arrangement from tool tail to tool head;One end of handle is fixedly installed with external numerical control machine tool, and at least four tool ridges are provided on the outer circumferential surface of tool body, and each tool ridge is sequentially arranged from the tail end of tool head of tool body to clearance.The utility model can improve the feed amount in the reamer processing process, improve the chip removal effect, and also help to improve the smoothness of the processing hole wall and slow down the reamer wear speed.

The invention relates to a reamer and to a reamer and floating head assembly. The task of the invention is to provide a reamer that will provide for high machining accuracy, will be adjustable for machining workpieces having different diameters and will allow for quick restoration or replacement of blades and guides. A reamer (1; 101) comprises a head (2; 102), at least three guides (3; 103), each consisting of a guide part (3 a; 103 a), movably arranged in the head, and a pointed part (3b; 103b), the guides being arranged at an angle φ with respect to the central axis of the head, and wherein part of the surface of the pointed part of the respective guide, which is intended to come in contact with the workpiece, is arranged at the same angle φ with respect to the central axis of the respective guide so that part of the surface of the pointed part of the respective guide, which is intended to come in contact with the workpiece, is arranged parallel to the central axis of the head, a blade holder (4; 104), an adjusting screw (5; 105) of the guides, elements (3c, 5a, 5b, 11, 12; 103c, 111) for transferring the translational movement of the adjusting screw (5; 105) of the guides to the guides and the blade holder, and a blade (6; 106) for machining the workpiece.