11results about "Metal-working drilling tools" patented technology

Method and means of manufacturing ties, fasteners and rods (15) having a plurality of longitudinal threads by forcing a coil of roll-profiled feed-wire made of steel (11) through a twisting-die made of plastic (1). Also described is: a twisting-die made of plastic (1) that is suitable for twisting profiled feed-wire (11) made of steel; a method of forming a plastic twisting die (1) using an axially driven tap (31) in the form of a twisted rod (15); and a helically-shaped member (15) having lead measurements (X) along the length of the helical thread that vary less than pitch measurements (Y) along the lengths of the helical threads.

The invention discloses a tong head rotating device for a machine tool drill bit forging device and a machine tool drill bit, and relates to the technical field of machine tool drill bit production, the tong head rotating device comprises a machine box and a servo motor, the servo motor is fixed in the machine box through a bolt, a mounting sleeve is arranged in the machine box, and the diameter of an opening in the front side of the machine box is larger than that of the mounting sleeve. According to the tong head rotating device for the machine tool drill bit forging device and the machine tool drill bit, by arranging a buffering mechanism composed of a circular truncated cone block, clamping teeth, a reset spring, a sliding square rod and the like, when forging and pressing impact force is transmitted to a mounting sleeve, a connecting base can generate displacement relative to the circular truncated cone block; radial impact force is converted into axial force enabling the circular truncated cone block to slide along the motor shaft through the slope structure of the circular truncated cone block, the axial force is absorbed by the reset spring, the impact force is digested by the buffer mechanism in the process through sliding connection of the square rod and the motor output shaft, the impact is prevented from directly acting on the servo motor, the service life of the motor is greatly prolonged, and the service life of the motor is prolonged. And the maintenance cost is reduced.

The invention discloses an isothermal forging die holder for machine tool drill bit forging equipment and a machine tool drill bit, and relates to the technical field of forging dies, the isothermal forging die holder comprises an upper die holder, a lower die holder and an alternate heat insulation assembly, and the alternate heat insulation assembly comprises a driving motor fixed on the surfaces of the lower die holder and the upper die holder; and a first heat insulation plate and a second heat insulation plate are embedded in the surface of the sliding shelf side by side. According to the invention, the temperature sensor monitors the temperature of the first heat insulation plate or the second heat insulation plate in the heat insulation work in real time, and when the temperature exceeds a threshold value, the heat insulation plate in the heat insulation work is replaced through the arrangement of the double heat insulation plates; therefore, the problems of pulverization and compaction of a heat insulation plate material caused by the fact that a single heat insulation plate is under the continuous action of high temperature and high forging load for a long time are solved, the two heat insulation plates alternately undertake a heat insulation task and alternately dissipate heat and cool through the alternate design, the high-temperature continuous working time of the single plate is greatly shortened, heat aging and structural damage are delayed, and the service life of the heat insulation plate is prolonged. The service life of the heat insulation plate is prolonged.

A constant rake planar cutting edge fluted drill bit and a method of manufacturing the same. The drill bit includes a planar cutting face formed at the tip end of the bit by a motion of a rotating machining wheel respective to a stationary blank in a first step. Once the cutting face is formed, the blank is rotated and translated in a direction parallel to an elongated axis, during which the rotating machining wheel creates a flute. Upon completion of the first flute, the bit is rotated accordingly and the processes are repeated to create each subsequent planar cutting face and respective flute. The process can also be completed in a slightly modified version of a reverse process, fabricating a flute prior to formation of the planar cutting face of the bit.

The invention discloses a forging device for machine tool drill bit machining and a machine tool drill bit, and relates to the technical field of machine tool drill bit machining. According to the forging device for machining of the machine tool drill bit and the machine tool drill bit, in the forward moving process of a toothed plate, a pin body is located in an outer circle spiral groove of a cylindrical cam to slide, so that the cylindrical cam synchronously drives a clamping jaw air cylinder to twist in the forward moving process, and then a formed drill bit clamped in the clamping jaw air cylinder rotates in the automatic taking-out and discharging process; when the torsion ink-jet assembly operates, the torsion action is synchronously achieved through forward moving power of a material taking mechanism, an additional driving source is not needed, the overall structure is simplified, energy consumption is reduced, and the work efficiency is improved. Dispersion procedures such as feeding, heating, forging and pressing, material taking and ink jetting are organically connected in series through mechanical transmission, unified driving is achieved depending on lifting power of the mounting plate, and automation is achieved through a pure mechanical structure.

The invention discloses a die locking structure for machine tool drill bit forging equipment and a machine tool drill bit, and relates to the technical field of drill bit forging, the die locking structure comprises a machining table, inverted T-shaped grooves are evenly formed in the machining table at equal intervals, a bottom plate is installed on the machining table, a lower die is arranged above the bottom plate, and a top plate is arranged above the lower die. According to the die locking structure for the machine tool drill bit forging equipment and the machine tool drill bit, through the automatic compensation mechanism, the deviation rectifying rod with the length larger than that of the guide column is matched with the positioning plate with the inclined face, so that the deviation rectifying rod firstly makes contact with the positioning plate and acts on the positioning plate to achieve automatic deviation rectifying before formal die assembly guiding of the upper die and the lower die; if the position of the lower die is not accurate due to deviation of the bottom plate, the deviation correcting rod can utilize the inclined face of the deviation correcting rod to force the lower die to transversely move, the center position of the lower die is automatically corrected, it is guaranteed that the upper die and the lower die can be finally and accurately closed, manual intervention and shutdown overhaul are not needed, the product quality consistency in batch production is greatly guaranteed, and the shutdown adjusting time is shortened.

The utility model belongs to the technical field of feeding mechanisms, and particularly relates to an alloy drill bit blank forging automatic feeding mechanism which comprises a mounting seat and a discharging pipe obliquely arranged on the mounting seat, and further comprises an induction piece used for inducting blanks and hinged to the mounting seat, and the front end of the induction piece is located right in front of the discharging direction of the discharging pipe; the rotating plate is hinged to the mounting seat; it can be understood that through cooperation of the inclined discharging pipe and the rotating plate, when the rotating plate inclines, blanks are received, after the clamping mechanism clamps the blanks, the rotating air cylinder drives the rotating plate to turn over, the blanks are made to be parallel to a forging die, the multi-shaft clamping jaw feeds the blanks into the die, automatic feeding is achieved, efficiency is improved, and the cost is lower than that of a mechanical arm; in addition, a double-shaft air cylinder is installed on a supporting plate, avoiding is achieved through connection of an avoiding plate and an adapting rod, after the multi-shaft clamping jaw takes materials, blanks at the bottom of the discharging pipe continue to be turned over through a rotating plate and a clamping mechanism, meanwhile, the multi-shaft clamping jaw feeds the blanks into a die, the double-shaft air cylinder and the multi-shaft clamping jaw work synchronously, and the feeding efficiency is guaranteed.

A drilling tool includes: a core material; and an outer material located around the core material. An integrated hole is formed in the outer material, and when viewed from a distal end side in a longitudinal direction, the integrated hole has: an insertion area in which the core material is inserted; and an oil-hole area that communicates with the insertion area. An oil hole is defined by an outer periphery of the core material inserted in the insertion area and an edge of the oil-hole area of the outer material.

A method of manufacturing a sleeve for a drilling insert includes shaping a stock to form a blank, and forming a flute in the blank to produce a sleeve configured to be mounted on a shaft of the drilling insert.

A drilling tool includes: a core material; and an outer material located around the core material. An integrated hole is formed in the outer material, and when viewed from a distal end side in a longitudinal direction, the integrated hole has: an insertion area in which the core material is inserted; and an oil-hole area that communicates with the insertion area. An oil hole is defined by an outer periphery of the core material inserted in the insertion area and an edge of the oil-hole area of the outer material.