6501 results about "Tool bit" patented technology

Disclosed is a wide-jaw-opening nail clipper, and the nail clipper includes: a first blade head portion formed at a first handle, and an upper blade formed at the first blade head portion, where an upper blade tip extends forward farther than an upper blade tail; a second blade head portion formed at a second handle, where the second blade head portion is provided with a butt-joint position, a lower blade is formed at the second blade head portion, a lower blade tip extends forward farther than a lower blade tail, and the upper blade tip and the lower blade tip both form a pointed cone shape; and the first blade head portion is rotatably connected to the second blade head portion, an elastic member is installed inside a mounting groove, and the first blade head portion and the second blade head portion together form a trimming blade head.

The invention relates to a cutting path generation system based on visual positioning, cutting equipment and a cutting method. The system comprises a scanning camera control module, an image acquisition and recognition module, an image processing module, a cutting path planning module and a cutting control module. According to the system, by combining a Laplace algorithm and an LBP and GLCM texture extraction technology, the boundary recognition problem under the condition that a pattern and a background are in the same color or low contrast is solved; the path smoothness and the cutting quality are improved by adopting contour optimization and curvature compensation algorithms, the cutting sequence is optimized by combining weighting functions of the area, complexity and overlapping degree, and material deformation is reduced. And motor driving is dynamically adjusted through PID control, and stable control over the speed of the tool bit is achieved. The method has the advantages of being high in recognition precision, high in adaptability, intelligent in path planning and stable in cutting process, the automatic cutting efficiency and the finished product quality of complex patterns or same-color materials are remarkably improved, and the overall cutting precision fluctuation is controlled within + / -2%.

The invention relates to the technical field of metal cutting, discloses metal plate laser cutting equipment with a laser head collision early warning function, and aims to solve the problem that the collision risk of an existing cutting head and a convex part of a thin plate is high. Through the displacement component, the laser cutter, the positioning assembly and the central control unit, a metal sheet to be machined is placed on the workbench, then the laser cutter is used for cutting the metal sheet to be machined, in the whole operation process, pictures on the workbench can be shot through the industrial camera, and the working efficiency is improved. The real-time image is displayed on the controller through the real-time image display module, an image model is established through the 3D modeling module, a worker can observe more visually, when an irregular thin plate is encountered, setting is conducted through the height compensation module at the moment, the position of a tool bit of the laser cutter is always at the same height with the thin plate, and the machining precision is improved. Once the set equal height changes, the collision alarm module gives an early warning, and the overall safety performance is improved.

The invention discloses a waste gas adsorption resin waste recovery device which comprises a support, a recovery cylinder is installed on the support, a flow guide plate is fixed in a screen cylinder, when the screen cylinder drives the flow guide plate to rotate, resin in the screen cylinder can be conveyed to the position between two rotating cylinders, the two rotating cylinders rotate relatively to drive a crushing tool bit to rotate, and the crushing tool bit is driven to rotate. The rotating crushing tool bits can circularly crush the resin, the two crushing tool bits can be driven to extend towards the outside of the rotating cylinders, and the gap between the crushing tool bits on the two rotating cylinders is reduced, so that the particle size of crushed particles of the resin is reduced. Only one power source is needed, energy consumption and maintenance cost are reduced, resin waste can be efficiently crushed, multi-stage crushing is not needed, the crushing tool bits in use can be cooled, the service life is prolonged, the screening drum is effectively prevented from being blocked, the screening efficiency of crushed resin is guaranteed, the distance between the crushing tool bits can be adjusted, and the particle size of resin particles is controlled; the stable quality of the recovered resin is ensured.

The invention relates to the technical field of milling cutters, in particular to a multi-tooth micro-blade milling cutter and a manufacturing method and application thereof. The multi-tooth micro-blade milling cutter comprises a cutter handle and a cutter head body, wherein the cutter head body is fixedly connected to one end of the cutter handle; the multiple cutter teeth are arranged on the outer side face of the cutter head body, and each cutter tooth extends to the tail end, close to the cutter handle, of the cutter head body from the top end, away from the cutter handle, of the cutter head body; each cutter tooth comprises a front cutter face, a rear cutter face and a cutting edge, the cutting edge is provided with a plurality of continuously-distributed micron-sized protruding micro-blades, the micro-blades form an arc-shaped sawtooth structure, the micro-blades extend to the front cutter faces and form micro grooves in the front cutter faces, the micro-blades extend to the front cutter faces and form micro grooves in the front cutter faces, and the micro-blades extend to the rear cutter faces and form micro grooves in the front cutter faces. The multi-tooth micro-blade milling cutter has the structure of the front angle of the front cutter face of the milling cutter tooth and the rear angle of the rear cutter face of the milling cutter tooth, the linear cutting blade of the traditional cutter tooth is dispersed into micro blades, the stress concentration of the cutter is reduced, a plurality of convex micro blades are in grinding motion on the machining face in the milling process, and the milling and grinding combined machining effect is formed. Unification of machining efficiency and machining precision is achieved.

The invention belongs to the technical field of worm machining, and particularly relates to a worm machining thread grinding and polishing device which comprises a machine tool body, a worm body is installed on one side of the upper portion of the machine tool body, a supporting frame is fixed to one side of the top end of the machine tool body, a moving seat is arranged in the supporting frame, and a lifting seat is arranged below the moving seat. A mounting base is mounted at the bottom end of the lifting base, a cutting tool bit is fixed to the bottom end of the mounting base, two polishing heads are arranged below the mounting base, a movable cavity is formed in the bottom end of the mounting base, a connecting box is slidably connected into the movable cavity, an electric telescopic rod is mounted in the movable cavity, and a second motor is mounted in the connecting box; the grinding head is driven by the electric telescopic rod to move downwards so that the grinding head can make contact with the threaded surface of the worm main body, the grinding head is driven by the second motor to grind burrs and stripes of threads, meanwhile, metal powder can be collected through the dust collection manifold, and the metal powder can be prevented from splashing to the ground or the top end of the machine tool main body.

The invention provides a telescopic high-frequency electric knife pen. The telescopic high-frequency electric knife pen comprises an operating handle, an adjusting piece, a guide sleeve and a telescopic rod. The adjusting piece is rotatably installed in an opening in the tail end of the handle shell, the guide sleeve is fixedly installed in the handle shell, the telescopic rod is inserted into the guide sleeve in an axially moving mode, one end of the telescopic rod extends out of an opening in the head end of the handle shell, and the other end of the telescopic rod is in transmission connection with the adjusting piece through a spiral guide groove and a guide protrusion. When the adjusting piece rotates, the telescopic rod is driven to stretch out and draw back. During use, the tool bit is inserted into the sleeve, and when the extension length of the tool bit needs to be adjusted, the adjusting piece is directly rotated to drive the telescopic rod to stretch out and draw back, so that the extension length of the tool bit is adjusted. According to the electric knife pen, the length of the knife head mounted at one end of the telescopic rod can be flexibly adjusted, and the problem that the length of a knife head of a traditional electric knife pen cannot be adjusted is solved; meanwhile, the scalpel heads with different lengths do not need to be frequently replaced in the operation process, the complexity and time cost of the operation are reduced, and the working difficulty of doctors is reduced.

The utility model relates to the technical field of tape slitting machines, specifically a tape slitting machine with convenient blade spacing adjustment, comprising a base, frames are fixedly installed on both sides of the top of the base, a movable frame is movably installed between the two frames, and partitions are fixedly installed at both ends of the middle of the movable frame; a plurality of tool holders are arranged side by side between the movable frame and the two partitions, a cutter is arranged at the bottom of the plurality of tool holders, and the tops of the plurality of tool holders are movably connected through a first spring. The utility model cooperates with a second cylinder, a push plate, a movable frame, a tool holder, a cutter and a first spring for use. After the two tool holders move, the first spring is compressed, and the other end of the first spring pushes the tool holder on one side in turn. By analogy, the spacing of each tool holder can be adjusted to be equal through a plurality of first springs. In this way, when adjusting the spacing of the tool holders, there is no need to manually adjust each one individually, and the adjustment can be completed at one time, thereby improving the adjustment speed.

The invention relates to the field of detection and calibration of numerical control machining equipment, and discloses a quick calibration method for a CNC machine tool cutter bit, which comprises the following steps: S1, collecting state data in the operation process of the cutter bit; s2, carrying out preprocessing on the state data; s3, inputting the preprocessed state data into a tool wear identification model, and outputting tool wear state information; s4, acquiring spatial point cloud data of the end part of the tool bit, and calculating spatial error information between the point cloud and a preset tool reference model; and S5, calculating the position offset and the attitude error of the tool bit in the three-dimensional space based on the space error information. By collecting the physical state data in the operation process of the tool bit and combining with the wear recognition model of the time sequence modeling mechanism, the wear state of the tool can be accurately recognized in real time, so that the problem of unstable recognition precision caused by environmental interference in a traditional method is solved, and the recognition accuracy and real-time performance are remarkably improved.

A rotary tool includes a tool body and a powered rotary cutting tooltip that is oriented and positioned relative to the tool body by a plurality of processor-controlled actuators that provide degrees of freedom. The processor uses a surgical tracking system to identify the pose of the tool body and the tooltip relative to a patient's anatomy and controls the actuators to maintain the tooltip within a predetermined cutting plan to compensate for deviation of a surgeon's hand or a robotic arm controlling the tool body during a cutting operation.

The invention relates to the technical field of deep hole machining, and provides a multi-axis linkage machining system for drilling and milling the inner wall of a deep hole, which adopts a linear motion device to directly drive a cutter support module, omits a lead screw and other intermediate transmission links, shortens the non-cutting time, has high positioning precision, can improve the machining efficiency, and has lower operation noise and vibration. The processing environment can be improved; according to the workpiece clamping device, a second hollow rotating platform is connected with a chuck, the chuck clamps the workpiece, through program control, the second hollow rotating platform can drive the workpiece on the chuck to rotate and position at any angle, and the requirement for machining the workpiece by a drilling and milling cutter module is met; the problems of time waste, positioning errors and the like caused by secondary clamping are avoided, and the workpiece machining efficiency is improved; a tool bit of the drilling tool module is fed by adopting a variable-diameter structure (a tool bit feeding assembly), and drilling and milling can be carried out on the inner walls of deep hole type workpieces with complex inner hole shapes such as bottleneck holes and stepped holes.

The invention discloses a uniformly distributed saw blade and a preparation method thereof, and relates to the technical field of saw blades. The evenly-distributed saw blade comprises a base body and tool bits, a plurality of tool bits are annularly welded to the periphery of the base body, a plurality of diamonds are distributed on the tool bits through a net plate adsorption evenly-distributed technology, the tool bits are formed by sintering matrix powder, and the matrix powder comprises, by weight, 30%-40% of copper powder, 20%-30% of copper-tin diffusion powder, 10%-20% of carbonyl iron powder and 5%-10% of nickel powder. And 10%-15% of tin powder. According to the saw blade preparation process, a screen adsorption uniform distribution process and saw blade uniform distribution design are adopted, it is guaranteed that when the first diamond is consumed by 1 / 5-2 / 3, the second diamond can be exposed, it is guaranteed that edges are exposed when the diamonds are consumed to any height, and the cutting continuity of the diamonds is improved. The diamond of 60-100 meshes is used in the saw blade, a finer cutting face can be formed in the cutting process, and the saw blade is suitable for machining tasks with the high requirement for cutting precision. The 60-100-mesh diamond particles are suitable for cutting hard and brittle materials, and edge breakage and cracks of the materials can be reduced in the cutting process.

The invention discloses an ice cream machine tool bit monitoring method which comprises the following steps: according to an initial distribution state, carrying out filtering operation on distance data by adopting a signal processing module, removing noise interference, and determining a stable distance value between a tool bit and a container wall; the stable distance value is compared with a preset threshold range, if it is detected that the distance value exceeds the threshold range, an abnormal signal is triggered, and it is judged that the position of the tool bit deviates; according to the abnormal signal, current tool bit operation parameters are obtained, the adjustment amount is calculated through a pre-established correction model, and a correction instruction of the tool bit position is obtained; according to the adjusted position state, the change trend of the distance between the tool bit and the container wall is continuously collected, and whether the change of the distance tends to be stable or not is judged through a time sequence analysis method; and for the final stable data, recording an association log of the tool bit position and the spacing change, and storing the association log to a system database through a data storage module for subsequent production batch reference.

The invention provides a maintenance tool suitable for high-precision positioning of a space solar wing. The maintenance tool comprises a clamping positioning tool and an electric drilling tool. The clamping and positioning tool comprises a clamping assembly, a handle fixing assembly and an angle positioning assembly. The clamping assembly is used for clamping the space solar wing and providing an alignment window corresponding to a to-be-maintained part on the space solar wing; the handle fixing assembly provides extra pressure for the clamping assembly after the clamping assembly clamps the space solar wing, and reliable fixing of the space solar wing is achieved. The angle positioning assembly drives the electric drilling tool to move to the alignment window; the electric drilling tool comprises a motor driving part, a drilling part and a protection part. The protection component is used for providing outboard protection for the drilling component in a non-operation stage, and during operation, the protection component is taken down, and a tool bit of the drilling component is aligned to a drilling area of outboard equipment; the motor driving part is used for providing stable rotation output in the drilling direction; and the drilling component takes the output of the motor driving component as the input to ensure that the tool bit is always kept in close contact with an object through the applied downward pressing acting force in the operation process to complete drilling maintenance.

The present invention provides a method for designing an abrasive water jet-disc cutter combined rock-breaking cutter head, a system therefor, a cutter head and a tunnel boring machine (TBM), wherein the key technology of designing the abrasive water jet-disc cutter combined rock-breaking cutter head of the TBM are provided from the aspects of determining a combined rock-breaking combination mode, configuration of cutter operation parameters and optimization of the combined cutter head; the performance of the abrasive water jet-disc cutter combined rock-breaking cutter head manufactured according to the optimized layout parameters is improved; and a new idea is provided for the development and application of a full-section rock tunneling machine in the field of underground engineering.

The invention discloses a deviation correction method, system and equipment based on a tool bit, and relates to the technical field of tool bit correction.The method comprises the steps that after a tool bit replacement correction request sent by a user side is received, the system executes first-time destination cutting, generates a destination cutting groove virtual model, extracts cutting parameters and compares the cutting parameters with preset parameters, and destination cutting deviation data is obtained; the system compensates the tool bit track and then executes second-time return cutting, a return cutting groove virtual model is generated, cutting parameters are extracted, and return cutting deviation data are obtained; the residual deviation is compared with a preset residual deviation threshold value, and whether the tool bit is corrected or not is judged; and if the correction is not completed, calculating a correctable value, and judging whether the return cutting deviation data can be continuously used for subsequent compensation or not. According to the method, whether the tool bit deviation can be compensated or not can be dynamically judged according to actual conditions, system oscillation caused by blind correction is avoided, rapid detection, effective compensation and intelligent decision making of the tool bit deviation are achieved, and the cutting precision and the system stability are improved.

The invention relates to the technical field of gear machining, in particular to a chamfering mechanism for precision gear machining, which comprises a floating unit, a chamfering unit and an adjusting unit, the floating unit is fixedly mounted through a fixing support, the chamfering unit is fixedly arranged on the surface of the floating unit, and the adjusting unit is fixedly arranged on the surface of the floating unit. Through the two chamfering tool bits which are oppositely arranged up and down, synchronous chamfering machining can be conducted on the upper tooth edge and the lower tooth edge of the gear, the chamfering efficiency of the single gear is improved, meanwhile, the axis of each chamfering tool bit is parallel to the axis of the gear, and it can be guaranteed that the tooth edge angle of the gear is always consistent; the angle of the upper path guide rail and the angle of the lower path guide rail are set through the adjusting unit, so that the gear chamfering mechanism can be used for chamfering straight-tooth gears and different sharp-tooth gears, the overall use range is wide, and functionality is high.

The invention discloses a brazing method for improving the welding strength of a polycrystalline diamond cutter and a hard alloy. The brazing method comprises the following steps that S1, brazing filler metal alloying is conducted; and S2, the PCD tool bit and the hard alloy matrix are subjected to vacuum brazing. According to the brazing filler metal, an Ag-Cu-Co system is adopted, Ag mainly plays a role of a solder matrix and provides plasticity and thermal conductivity, Cu mainly plays a role of forming an eutectic structure with Ag and reducing the melting point, and Co mainly plays a role of wetting the surfaces of PCD and hard alloy. Co infiltration is adopted in the preparation process of the PCD tool bit used in the method, so that a certain amount of Co exists on the PCD surface, and the hard alloy tool body also contains Co, and therefore, a small amount of Co in the brazing filler metal can better wet the welding surface according to the similar intermiscible principle. In the vacuum brazing process, additional pressure does not need to be applied, when the brazing filler metal is molten, the brazing filler metal is evenly laid on the welding face under the action of the pressure of the PCD tool bit on the upper portion and the capillary effect, the redundant brazing filler metal can flow out of the two sides of the mold, and the flatness of the welding surface can be effectively guaranteed.

The invention discloses a cutting saw blade and a cutting device, and belongs to the technical field of cutting tools, the cutting saw blade comprises a saw blade body, a tool bit assembly is arranged at the outer diameter of the saw blade body, the tool bit assembly comprises a first tool bit and a second tool bit, the radial outer end points of the first tool bit and the second tool bit are located on the same circle, and the radial outer end points of the first tool bit and the second tool bit are located on the same circle. The first tool bit and the second tool bit comprise a first cutting face and a second cutting face, the first cutting face and the radius where the outer end point of the first tool bit is located form a first cutting angle, and the second cutting face and the tangent line where the outer end point of the first tool bit is located form a second cutting angle. The angle range of the first cutting angle and the second cutting angle is 10 degrees to 15 degrees. The cutting device comprises the cutting saw blade and further comprises a cutting tool and a control assembly, the cutting saw blade and the control assembly are arranged on the two sides of the cutting tool respectively, a cutting track is arranged on the cutting tool, and the cutting saw blade reciprocates along the cutting track.

The utility model discloses a tool bit assembly structure of a vibrissa trimmer and the vibrissa trimmer adopting the tool bit assembly structure. Belongs to the technical field of vibrissa trimmers. The technical key point is that the cutter comprises an inner cutter holder and an outer cutter holder which are mutually sleeved, an inner cutter assembly is arranged at the upper end of the inner cutter holder, and the inner cutter assembly is composed of a plurality of inner cutter heads which are uniformly distributed along the edge of the inner cutter holder at intervals. An outer cutter assembly is arranged at the upper end of the outer cutter holder, the outer cutter assembly is composed of a plurality of outer cutter bits which are evenly distributed along the edge of the outer cutter holder at intervals and matched with the inner cutter bits, the inner wall of the outer cutter assembly is tightly attached to the outer wall of the inner cutter assembly, and the outline of the inner wall of the outer cutter assembly and the outline of the outer wall of the inner cutter assembly are in a circular truncated cone shape matched with each other; the utility model aims to provide the tool bit assembly structure of the vibrissa modifier and the vibrissa trimmer adopting the structure, wherein the assembly effect is good, the inner tool bit and the outer tool bit are tightly matched, and the shearing effect is good. The device is used for trimming vibrissae.

A material penetrating tool includes a shaft portion defining a central axis, and an enlarged cutting portion extending downwardly axially from the shaft portion. The enlarged cutting portion includes a rearward blunt surface, a front cutting surface, a first side surface and a second side surface, and the first side surface and the second side surface define an angle of extension measured in a plane perpendicular to the central axis, forming a wider forward cutting surface than the rearward blunt surface in a plane perpendicular to the central axis.

The invention belongs to the technical field of computer production, and discloses a computer case drilling and cutting device which comprises a support, a hydraulic cylinder, a conveying roller, a plate and a transverse frame, and further comprises punch mechanisms arranged at the bottom of the transverse frame at equal intervals; the supporting cylinders are fixedly connected to the bottom of the support at equal intervals; and the bearing of the inner cylinder is connected into the supporting cylinder. According to the scheme, the hydraulic cylinder is operated to enable the transverse frame to push the punch mechanism to move downwards to punch a plate, then the bottom of the punch mechanism makes contact with the supporting plate body through punching waste and extrudes the supporting plate body to move downwards, and therefore the shaft body drives the bottom of the tension piece to move downwards, and a tool bit makes contact with the edge of the bottom of a punched hole in the plate; and the shaft body can move along the guide groove, and at the moment, the shaft body can force the inner cylinder to rotate, so that the scraper and the tool bit rotate to cut and chamfer the bottom of a punched hole, and the situation that the edge of the bottom of the plate protrudes when the plate is punched is avoided.

The utility model relates to a shaver. The shaver comprises a shaver body which comprises a shell and a shaver head, and the shaver head is arranged at the first end of the shell; the tool bit protection cover is detachably connected with the first end of the shell and used for protecting the tool bit; a protective cover fixing part is arranged at the second end of the shell and can be detachably connected with the tool bit protective cover. According to the shaver, when the shaver works, the shaver head protection cover can be conveniently stored, the situation that the shaver head protection cover is lost or occupies extra space is avoided, the portability of the shaver is improved, when the shaver head protection cover is connected to the second end of the shell, the holding area of the shaver can be increased, water is prevented from entering the charging port, and the user experience is improved.

The present invention discloses a high-intensity magnetic bit extension rod with a telescopic unlocking function, belonging to the field of electric tool technologies, and specifically including a connecting rod sleeve, a magnet, and a connecting rod handle, where a tool bit sleeve configured to connect a tool bit is disposed at a front end of the connecting rod sleeve, a slidable limiting tubing is disposed at a rear end of the connecting rod sleeve, the magnet is disposed at a front end of the connecting rod handle, and a partition structure or / and a magnetic conduction structure is / are further disposed between the magnet and a bottom of the tool bit sleeve; and the connecting rod sleeve and the slidable limiting tubing are synchronously axially slidable relative to the connecting rod handle and the magnet. In the present invention, in a process of replacing the bit, the magnet may be driven to the position away from the bit in a sliding manner and kept at the position by the positioning structure. In this way, an operator can easily insert and remove the bit with one hand. The slidable limiting tubing of the present invention is located at the rear end of the connecting rod sleeve, so that the diameter of the magnet inside the connecting rod sleeve can be made as large as possible to increase a magnetic attraction capability, and an outer diameter of the front end of the connecting rod sleeve can be reduced to facilitate use in a small space.

The invention relates to the technical field of diamond saw blades, in particular to a laser welding diamond saw blade for ultra-narrow slit cutting and a preparation method of the laser welding diamond saw blade. The copper-cobalt-tin alloy material comprises the following raw materials: copper-cobalt-tin alloy powder, tungsten carbide powder, titanium-aluminum nitride, spherical cobalt powder, rare earth yttrium powder, ferrophosphorus powder and diamond abrasive particles. According to the preparation method, the core of the preparation method lies in the combination of powder metallurgy prefabrication of the tool bit and the precise laser welding process, especially the innovative laser welding process, and the prepared diamond saw blade is high in welding seam strength, narrow in heat affected zone and extremely small in matrix deformation; the problems of base body deformation, insufficient welding seam strength, short service life and the like of a traditional saw blade in the ultra-narrow seam cutting process are solved, and the saw blade is perfectly suitable for ultra-narrow seam cutting scenes with extremely high requirements for precision and stability.

The invention belongs to the technical field of surgical robots, and particularly relates to an articulated lens connecting structure applied to a continuum surgical robotic.When the connecting structure is used, firstly, the mounting end of a tool bit penetrates into a first cavity, and the mounting end of the tool bit makes friction contact with the inner wall of the first cavity; the installation end of the tool bit is located between the multiple clamping pieces, the tool bit is higher than the clamping pieces, the installation end of the tool bit is rotated, then the rotary connector and the fixed connector are driven to rotate relatively, the multiple clamping pieces are driven to get close to and clamp the tool bit, installation of the tool bit is achieved, and the tool bit can be disassembled by rotating the tool bit reversely. Connection is convenient, fast and firm, and the possibility of surgical risks is reduced; and meanwhile, the first cavity is arranged to be in an inverted frustum shape, so that the first cavity can be matched with tool bits of different shapes and sizes, and the applicability is higher.

The utility model relates to the technical field of punching, in particular to a bus punching machine convenient to debug, which comprises an operation table, an extrusion plate, a limiting rod, a rotating shaft, a rotating disc, a tool bit and the like, a limiting rod is connected to the right side of the top of the operation table, an extrusion plate is slidably connected to the limiting rod and is driven by a hydraulic cylinder to move in the vertical direction, a rotating shaft is rotatably connected to the position, close to the middle, of the top of the operation table and penetrates through the extrusion plate, and a rotating disc is connected to the lower portion of the rotating shaft. At least three tool bits are installed on the outer side of the rotating disc in an annular array mode. According to the utility model, the plurality of tool bits are arranged on the rotating disc, when the tool bits need to be replaced, the required tool bits are selected through the control panel, the rotating shaft can be driven to rotate through the servo motor, and the selected tool bits are driven to rotate to a station through the rotating disc, so that the tool bits can be rapidly and accurately replaced.

The invention belongs to the technical field of disc tool magazines, and particularly relates to a disc tool magazine tool reversing device which comprises a tool rest box, a rotating disc is rotationally arranged in the tool rest box and connected with a rotating motor, a tool outlet is formed in the bottom of the tool rest box, and mounting frames distributed in an annular array mode are arranged on the outer side of the circumference of the rotating disc. Sliding blocks are slidably connected to the two sides of the mounting frame in a limiting mode and slide in the radial direction of the rotary disc in a limiting mode, a tool sleeve structure is rotationally connected between the two sliding blocks through a torsional spring, a rotary driving mechanism and a pushing mechanism are arranged at the positions, corresponding to the tool outlets, of the tool rest box, and the rotary driving mechanism pushes the tool sleeve structure to rotate. And the pushing mechanism downwards pushes the sliding block and the knife pouch structure. When the tool pouch structure is in a horizontal placement state, the horizontal extension distance of the tool bit is reduced so as to reduce the movement range of the tool bit to ensure the working safety, and the distance of the tool bit extending out of the tool outlet is increased when the tool bit is taken.

The invention discloses cutting equipment with an automatic pitch changing function, and relates to the technical field of cutting equipment. Comprising a hydraulic driving device, a cutting machine box, a material shifting module, a waste material cutting module, a conveying table, a material belt cutting module and a variable-pitch tool bit module, and a second lead screw and a second shear rod assembly are matched to drive a first variable-pitch tool rest and a second variable-pitch tool rest to move at equal intervals, so that the material belt is cut according to the transverse interval of materials on the material belt; and the distance between the first variable-pitch tool rest and the second variable-pitch tool rest is adjusted in a self-adaptive mode. By adjusting the distance between the first tool bit assembly and the second tool bit assembly and adjusting the distance between the first variable-distance tool rest and the second variable-distance tool rest, the cutting tool bit can conduct longitudinal and transverse distance adjustment according to the specification of a material belt, and the purpose of automatic distance changing of the cutting tool bit is achieved. And the positioning columns are used for positioning the upper pressing plate piece, so that the upper pressing plate piece is prevented from deviating during descending, and the cutting precision is improved.

A portable coffee machine comprises a machine body and a drinking cup, the machine body comprises a machine shell and a driving mechanism arranged in the machine shell, the machine body is detachably connected with a bean grinding assembly or a water injection assembly, and the bean grinding assembly is in transmission connection with the driving mechanism; the powder extraction cup is detachably arranged in the drinking cup, and the drinking cup is detachably connected with the bean grinding assembly or the water injection assembly; the bean grinding assembly is used for grinding coffee powder and conveying the coffee powder into the extraction powder cup; the water injection assembly is used for injecting water into the extraction powder cup for extraction. The bean grinding assembly comprises a grinding bin detachably connected with the machine shell, an outer tool bit is fixedly arranged in the grinding bin, an inner tool bit matched with the outer tool bit is rotationally arranged in the outer tool bit, and the inner tool bit is connected with a first rotating shaft. The upper end of the first rotating shaft is in transmission connection with the driving mechanism; and the lower end of the first rotating shaft is connected with a powder distributor. The portable bean grinder has the advantages of being capable of grinding beans and brewing and portable.