42results about How to "Solve the problem of chip removal" patented technology

The invention provides an ultrasonic vibration modulation bidirectional narrow-pulse-width micro-energy pulse power supply which aims to improve the micro-electric discharge machining precision and realize an optimal machining effect. A main body portion of the ultrasonic vibration modulation bidirectional narrow-pulse-width micro-energy pulse power supply comprises a pulse power supply and an ultrasonic vibration system. The ultrasonic vibration system drives a tool electrode or workpiece to ultrasonically vibrate. The ultrasonic vibration frequency of the tool electrode or workpiece is identical to the chopping frequency of the pulse power supply, and a precondition foundation can be provided for organically combining ultrasonic vibration with pulse discharge to carry out discharge machining under the control effect of a group of identical signals outputted by a main control unit. The ultrasonic vibration modulation bidirectional narrow-pulse-width micro-energy pulse power supply has the advantages that bidirectional narrow-pulse-width pulses are generated by the aid of ultrasonic vibration modulation, single micro-energy pulses capable of discharging are obtained, discharge channels are stretched, scraps can be effectively removed, quick de-ionization processing can be carried out, gap discharge conditions are improved, the machining speed is increased, the machining precision is enhanced, and the ultrasonic vibration modulation bidirectional narrow-pulse-width micro-energy pulse power supply has important engineering application value.

The invention discloses an ultrasonic inserting cutting tool for processing a curve outline of a honeycomb core. The ultrasonic inserting cutting tool comprises a threaded section, a rigidity improving block, a trapezoid-like shaped platform transition block and a thin-sheet shaped open type tool body, wherein axes of the threaded section, the rigidity improving block, the trapezoid-like shaped platform transition block and the thin-sheet shaped open type tool body are positioned on an axis of the ultrasonic inserting cutting tool for processing the curve outline of the honeycomb core. According to the ultrasonic inserting cutting tool for processing the curve outline of the honeycomb core, the curve outline of the honeycomb core material is inserted and cut under ultrasonic vibration effect; the honeycomb core material can be smoothly cut through a circular arc shaped cutting bottom edge under the ultrasonic effect, thus the damage of the honeycomb core material in processing can be decreased, and the processing rigidity of the rest materials can be improved; in addition, the friction between the circular arc shaped cutting bottom edge and the processing surface of the honeycomb core is reduced by the ultrasonic effect, so that the processing defects of the curve outline of the honeycomb core can be reduced; the abrasion of the tool is reduced, and as a result, the service life of the tool is prolonged; and the curve outline of the honeycomb core is processed with high quality.

The invention discloses a drill bit for breaking rock by rotary cutting (a rotary cutting drill bit for short as follows), which comprises a drill bit main body, a roller cone, cutting teeth, an oil storage bag and a spray nozzle, wherein the drill bit main body comprises a roller cone shaft neck, a centralizing block, a high-pressure slurry channel and a connecting screw thread; and the roller cone and the shaft neck on the main body adopt a general bearing and a sealing structure of a tricone drill bit; a plurality of circles of cutting teeth are arranged from the large end to the small end of the roller cone; an included angle beta (an included angle of a cone body for short as follows) between a roller cone shaft neck plane on the main body and an axial line of the drill bit ranges from 0 to 90 degrees (containing beta i=beta(i+1) and beta i is not equal to beta(i+1)); the offset s (containing si=s(i+1) and si is not equal to s(i+1)) of the shaft neck ranges from-D/2 to D/2; wherein i (greater than or equal to 1) represents a serial number of the roller cone; the included angle of the cone body corresponding to the cone i is represented by beta i; the offset of the shaft neck corresponding to the cone i is represented by si; and D represents the diameter of the drill bit. According to the drill bit disclosed by the invention, an inner-row large gear ring is used for cutting the center of a shaft bottom and has high rock-breaking efficiency; each circle of cutting teeth can be used for scratching and cutting the shaft wall and has favorable effects for gauge protection and side drilling; the size of the shaft neck is large; the speed ratio of the cone body is smaller than 1; and the bearing has a long service life.

The invention discloses a circular forming knife rest type milling assembly which comprises a circular forming cutter head base body, wherein a knife rest type milling assembly is arranged on the edge of the base body; at least two columns of cutting blades are arranged on the knife rest type milling assembly; and the two columns of cutting blades are arranged in a staggered mode in a direction perpendicular to the circular cutting direction. According to the knife rest type milling assembly disclosed by the invention, blank parts of various materials can be subjected to circular forming milling, the knife rest type milling assembly is particularly applied to milling the railway rail head profile and has the advantages of convenience in blade maintenance, convenience in knife rest storage, high tool track machining expandability and the like, and the development of the circular forming, particularly the development of the circular forming technology of the railway rail head profile and the tool application, is promoted.

The invention relates to a full-automatic tab forming machine which comprises a discharging mechanism, a main machine, a glue delivery mechanism and a receiving mechanism, wherein a conductor cleaning mechanism, a first servo motor, a heating mechanism, a coating mechanism, a slitting mechanism, a second servo motor and a cutting mechanism are sequentially arranged on the main machine. The full-automatic tab forming machine is high in automation, the production efficiency is higher, and the quality is safer.

A novel process for working swirl chamber aperture in cylinder cover of diesel engine is that, the fuel injection hole is preworked before working swirl chamber aperture, then working the swirl chamber aperture and finely working fuel injection hole. Said invention raises the working quality of fuel injection hole.

The invention relates to an imbedded carbide drill for a steel piece and a processing method, wherein the imbedded carbide drill for the steel piece is structurally a cutter body which is connected between a carbide blade and a shank; the front end part of the cutter body is connected with the carbide blade, a cuttings reeling slot is arranged between the tool nose of the cutter body and an auxiliary chamfered edge of a peripheral blade, the rear part of the cuttings reeling slot is connected with a cuttings-breaking groove, the center of the carbide blade is provided with a blade drilling core, a cutter slot is formed in the top of the cutter body, and a cutter body core is arranged at the center of the cutter slot. The processing method comprises of 1, selecting the blade; 2, cuttings reeling of a blade section and grinding of the cuttings-breaking groove; 3, grooving a steel body; 4, preparing a tool section for the carbide blade; 5, cutting the tool section through wire-electrode cutting; 6, lathing the cutter body through a lathe; 7, milling the cutter body through a milling machine; 8, milling the cutter slot through the milling machine; 9, heat treating; 10, welding; 11, grinding the carbide blade through a tool; and 12, coating TiAlN. The imbedded carbide drill has the advantages that steel piece processing and cuttings are automatically reeled, broken and removed, the material consumption is 1/20 of the existing material consumption, the cost performance is greatly increased, and the imbedded carbide drill has great economic and social benefits.

The invention discloses a workpiece ultrasonic-plasma electrolysis combined machining method and a machining device. The machining method comprises the following steps that an electrolyte is provided between a non-metal layer and a tool electrode; a metal layer is connected with the anode of an electrolytic machining power supply, the tool electrode is connected with the cathode of the electrolytic machining power supply, and direct-current voltage is applied between the metal layer and the tool electrode; and the tool electrode moves relative to the non-metal layer from the side, far away from the metal layer, of the non-metal layer, and ultrasonic waves are guided to the non-metal layer. According to the method, firstly, the surface of the non-metal layer is machined through the ultrasonic waves guided to the non-metal layer, and in the ultrasonic machining process, plasma generated through induction can promote solution circulation of ultrasonic machining, so that products of ultrasonic machining are rapidly discharged out of a machining area. And after the non-metal layer is machined, the metal layer is exposed, so that ultrasonic electrolysis parallel processing is carried out on the metal layer.

The invention discloses a precision deep-hole boring cutter which comprises a cutter body, wherein the end of the cutter body is provided with a cutter holder; a cutter handle is connected to the cutter holder; a back taper is arranged on the cutter body; a cooling channel is formed inside the cutter body and passes through the cutter body, and the bottom of the cooling channel extends into the cutter handle; a cooling liquid inlet is formed in the cutter handle and extends from the side face of the cutter handle to be connected with the cooling channel; and at least two guide blocks made from Kenner 2210 superfine crystalline grain hard alloy are fixed with the cutter body to a whole body through welding. According to the precision deep-hole boring cutter, the problems of cooling and chip removal during operation are solved, vibration during operation is eliminated, the abrasive resistance of the cutter is improved, and the loss of the cutter is reduced.

The invention discloses an externally-tightening and quick-changing hobbing tool for shafts. The externally-tightening and quick-changing hobbing tool comprises a base installed on a work plane of a machine tool. A transition pull plate and an adhesion tightening sleeve are sequentially installed on the base. The transition pull plate is connected to a pull rod of the machine tool and driven by the pull rod of the machine tool to move downwards or upwards. The adhesion tightening sleeve is matched with the transition pull plate to tighten or loosen work-pieces. According to the characteristics that power takeoff shafts are various and production change is frequent, the externally-tightening and quick-changing hobbing tool is designed. According to the tool, serialization design is carried out on the adhesion tightening sleeve and a centre, the adhesion tightening sleeve and the centre are convenient to change, and the design range of clamps for new shaft parts in future can be expanded.

The invention discloses a high-precision high-rigidity turning and milling combined center inclined lathe bed. The high-precision high-rigidity turning and milling combined center inclined lathe bed comprises a base and a stand column, wherein the stand column is fixed to one side of the top of the base, the outer side wall of the stand column is perpendicularly fixed to the base, the inner side wall of the stand column is obliquely fixed to the base, and the included angle between the inner side wall of the stand column and the top end face of the base ranges from 75 degrees to 85 degrees. According to the turning and milling combined center inclined lathe bed, by means of the inclined side wall of the stand column, chippings generated after a workpiece is machined by a turning and milling combined center can be discharged in time through a lathe bed structure, and the chippings are better and faster discharged by means of the inclination angle of the side wall of the stand column compared with a common vertical angle or a common horizontal angle, therefore, the situation that the chippings are accumulated in a machine tool and then the operation of the machine tool is influencedis avoided, the chipping removal efficiency is improved, moreover, the overall working efficiency of the machine tool is further improved, and high practicability is achieved.

The invention discloses a multi-section forming reamer for processing an automobile valve sleeve. A left peripheral blade and a right peripheral blade are sequentially arranged on a knife body; a guide column is arranged between the left peripheral blade and the right peripheral blade; a left knife rotating slot with left helixes is formed in the left peripheral blade; a right knife rotating slotwith right helixes is formed in the right peripheral blade; an internal cold hole which is formed along a center axis is formed inside the knife body; one end, towards the head part of the knife body,of the internal cold hole is sealed; and the head of the knife body is provided with a forming chamfer angle. The multi-section forming reamer for processing the automobile valve sleeve provided by the invention, a left-helix design is adopted for discharging chips downwards, and a right-helix design is adopted for upwards discharging chips, so that a phenomenon that scrap iron cannot be discharged as a chip discharge slot is too long is avoided; a guide column is additionally arranged to raise a supporting column, so that hole precision is improved; a forming chamfer design is adopted, chamfering for connecting a R angle to a transition angle is made after conventional chamfering, so that roughness of hole walls can be improved in a cutting process; and the left knife rotating slot adopts front punching and side cooling, and a right knife rotating slot adopts back punching and side cooling, so that a chip discharge direction is met, chip removal and cutting edge cooling are facilitated better, and therefore, cooling effect is improved.

The invention provides a blind hole boring cutter assembly. The blind hole boring cutter assembly comprises a cutter head main body, a rotating body, a cutter rod and a rotating shaft. A cutter head is arranged on the periphery of the cutter head main body and used for cutting a hole inner wall. The rotating body is used for rotating the cutter head during cutting, a plurality of height-adjustablesupporting blocks are arranged on the periphery of the rotating body, and during cutting of the cutter head, the supporting blocks make contact with the hole inner wall. The cutter rod is provided with a hand-held part. The rotating shaft penetrates through the rotating body, and the two ends of the rotating shaft are connected with the cutter head main body and the cutter rod correspondingly. When the cutter head cuts the hole inner wall, a hole of a machining piece rotates, the cutter head main body and the cutter rod move in the horizontal direction and simultaneously rotate with the holein the same direction under driving of static friction force, and the rotating speed of the rotating body is the same as that of the hole; and when the cutter head cuts the hole inner wall, the rotating speed of the hole of the machining piece is 50-300 r/min. The blind hole boring cutter assembly has the effects that friction of the supporting blocks is reduced, vibration is eliminated, and chipremoving is facilitated.

An external circle riser removing device for a hub comprises a work platen (14) which is arranged in the middle of a machine tool base (11). The work platen (14) is provided with a longitudinal moving guide rail (10). A clamping jaw supporting seat (7) is installed on the longitudinal moving guide rail (10). A longitudinal moving air cylinder (1) is installed on the work platen (14) and connected with the clamping jaw supporting seat (7). A knocking air cylinder (9) is installed on the side face of the clamping jaw supporting seat (7). The external circle riser removing device is characterized in that a clamping air cylinder drives clamping jaws to move transversely so that the hub (16) connected with a riser sleeve can be clamped, the left clamping jaw (2) and the right clamping jaw (2) clamp the hub through a synchronous link rod (3), a riser of the hub (16) is rapidly knocked through the knocking air cylinder (9), and therefore the riser sleeve falls into a riser sleeve collecting frame (12). According to the external circle riser removing device for the hub, the riser does not need to be completely cut so as to fall into a machine tool when the riser sleeve of the hub is cut, the problem existing in machine tool scrap discharge is solved, and therefore automatic machining of a riser cutting line can be achieved.