189 results about "Broaching" patented technology

The invention discloses an ultrasonic-assisted broaching machine tool based on a resonance broach and a design method. The machine tool comprises a broaching machine structure; a groove of the ultrasonic broaching tool is located in the position corresponding to the vibration mode wave crest of the broaching tool; the main piezoelectric actuator device is arranged in the groove; the compensation piezoelectric actuator device is arranged at the position, corresponding to the radial vibration mode, of the ultrasonic broach; the frequency of the ultrasonic power supply and the main power supply is the corresponding frequency when the axial ultrasonic vibration amplitude is maximum and the radial ultrasonic vibration amplitude is minimum under different power supply frequencies, the main driving voltage is determined according to the frequency of the main power supply, the preset broaching maximum speed of the broach and an ultrasonic auxiliary broaching effectiveness coefficient, and the frequency of the compensation power supply is the same as the frequency of the main power supply; the phase difference is 180 degrees, and the compensation driving voltage is the corresponding driving voltage when the ratio of the radial ultrasonic vibration amplitude to the axial ultrasonic vibration amplitude in different driving voltages is smaller than or equal to a preset threshold value. The ultrasonic assistance of the broach which needs to be frequently clamped can be realized.

The invention belongs to the technical field of machining, and particularly relates to an ultrasonic internal broaching test platform and an ultrasonic vibration mode control method.The test platform comprises a base, a broach and a clamping mechanism, and the clamping mechanism comprises a supporting ring and a clamping sleeve; a clamping groove is formed in the broach, and a protrusion matched with the clamping groove is arranged on the clamping sleeve. A plurality of supporting columns are arranged on the base, and the supporting columns are arranged in a circular shape. The broach is arranged in a space defined by the multiple supporting columns. And a piezoelectric actuator is arranged on the broach. Based on the platform, the invention provides the control method of the ultrasonic vibration mode, modal drift can be optimized and reduced by adjusting the pre-tightening force and the ultrasonic power supply driving frequency, the pre-tightening force is adopted to adjust and stabilize the contact rigidity, and the energy loss can be reduced; through frequency tracking, resonance points are matched in real time, and energy transfer can be maximized; the two modes are cooperatively controlled, response speed and stability are both considered, and the method adapts to high-dynamic loads.

The invention belongs to the technical field of machining, and particularly relates to an ultrasonic internal broaching broach vibration mode design and control method, which comprises the following steps: firstly, based on a modal isolation structure design method, accurately designing axial and radial vibration modes of a broach so as to meet the requirements of high-precision and high-efficiency broaching machining; a signal processing method based on filtering driving is provided, a designed target vibration mode is accurately driven, the problem that the vibration mode bandwidth of PZT changes along with working conditions such as temperature is solved, finally, due to the fact that the broach frequency vibration mode drifts along with working condition changes in practical application, a dynamic frequency tracking system is developed, and it is ensured that when signals are close to the resonant frequency, the vibration mode bandwidth of the PZT changes along with the working condition changes. The driving frequency can be dynamically adjusted, and it is ensured that the ultrasonic-assisted broaching system is always kept in the target vibration mode. Through optimization and improvement in the three aspects, the ultrasonic vibration broaching effect of the high-strength and high-hardness workpiece is remarkably improved.

The present invention discloses a fixture and a broaching method for the precision broaching of the tenon and groove of a small test block of an aviation high-pressure turbine disc. The fixture includes a support frame, a chassis and a pressure plate. The support frame is plugged into the axial end face of the chassis through a solid shaft, and there is an inclined angle between the solid shaft and the axial end face of the chassis, and the pressure plate is connected to the solid shaft through a thread. When precision broaching the tenon and groove of a small test block, the small test block is first placed between the support frame and the pressure plate and clamped, and the tenon and groove size of the small test block is gradually formed by a horizontal high-speed broaching machine, and the broaching and forming process is divided into two steps: rough drawing and fine drawing. The present invention provides a fixture for drawing the tenon and groove of a small test block during the broaching process of a high-pressure turbine disc. The fixture has a simple structure, is light in weight and is easy to clamp. The use of the fixture greatly improves the production efficiency and forming quality of the high-pressure turbine disc.

The invention relates to the field of shock absorber machining, and discloses a reaming tool for shock absorber outer cylinder machining, the reaming tool comprises a tool seat, the top of the tool seat is fixedly provided with a first supporting seat, a second supporting seat and a third supporting seat, and the top of the first supporting seat is provided with a reaming structure. The device is provided with the driving structure, the broaching assembly, the electric heating assembly, the forming assembly and the cooling structure, the broaching forming quality of the broaching assembly on the shock absorber outer cylinder can be improved through combination of the electric heating assembly and the forming assembly, the broached shock absorber outer cylinder is cooled in the cooling structure, the cooling structure is combined with the design of a broaching base and a pressing block, and the machining efficiency is improved. On one hand, splashing of water in the cooling process and cooling of the local position of the shock absorber outer cylinder are avoided, on the other hand, water waste is avoided, and the use cost is reduced while the efficiency is improved.

The invention discloses an ultra-long stroke broach high-speed driving vibration suppression compensation system and method. The broach is long in stroke, large in load, high in speed and very easy to vibrate; meanwhile, errors generated by broach abrasion and system deformation are the two key factors influencing the machining precision and efficiency of the broaching machine. In order to solve the technical problems of machining errors and the like caused by mechanical vibration and deformation in high-speed driving, the invention provides the following technical scheme that the system comprises a broaching machining mechanism, a workpiece clamping and moving mechanism and a workpiece broaching tool damping mechanism. The high-speed drive damping technology is achieved through the broach drive three-dimensional damping assembly and the workpiece broach damping device, and the real-time error compensation technology is achieved through the displacement fine adjustment mechanisms at the two ends of the broach. And through the high-speed driving and real-time error compensation technology, the precision and efficiency of ultra-long stroke broaching machining are improved. In addition, the guide wheel is used for abutting against the back side of the cutting position of the broach, and excessive deformation, caused by cutting force, of the middle of the ultra-long broach is avoided.

The invention discloses a multi-mode flexible four-corner welding machine and method for improving the weld fillet strength, and belongs to the technical field of profile manufacturing. The welding machine comprises a machine body, a cross beam of the machine body is adjustable along an X axis, machine heads on the cross beam slide along a Y axis, and four groups of machine heads clamp four corners of a profile. The machine head integrates a pressing assembly, a heating assembly, a broaching assembly, a seam pressing assembly and the like, the pressing assembly achieves profile fixing and position adjusting through a plurality of guide rail pairs, the broaching assembly carries out precise broaching on a welding seam, and the seam pressing assembly prevents molten chips from overflowing and carries out surface molding on the profile. The method comprises the steps of debugging, charging, positioning and limiting, heating, welding seam width adjustment, welding and discharging. Welding and welding seam finishing are integrated, and the secondary machining defect is avoided; multiple groups of adjustable mechanisms and detachable accessories are matched with various profiles; the surface of the color profile can be protected, the welding quality is enhanced, and the flexible manufacturing capacity of a production line is improved.

The invention relates to a tool for dressing a grinding wheel of a broach grinding machine, and relates to the technical field of grinding, the tool for dressing the grinding wheel of the broach grinding machine comprises a tool mounting rack, a tool rotating device, a traction feeding device, a cutting sensing device and a cutting energy storage device, the tool mounting rack is mounted on a broach transverse moving device, the tool rotating device is rotatably mounted on the tool mounting rack, and the traction feeding device is mounted on the tool mounting rack. The traction feeding device is installed on the tool rotating device in a sliding mode, the cutting sensing device comprises a cutting block, a friction driving piece and a friction reference piece, the friction reference piece is installed on the tool rotating device, the friction driving piece is installed on the traction feeding device in a rotating mode, and the cutting block is installed on the traction feeding device in a sliding mode. The cutting block pushes the friction driving piece to be close to the friction reference piece and generate friction with the friction reference piece, the cutting energy storage device is installed on the traction feeding device, the cutting energy storage device is in transmission connection with the traction feeding device, the cutting block is installed on the traction sliding block in a sliding mode, and grinding wheel dressing is facilitated.

The invention discloses a motorized spindle which comprises a shell, a spindle, a motor and a motor, the shaft core is rotationally supported in the shell, a rotor is arranged on the shaft core, a through cavity is formed in the shaft core in the axial direction, a driving key is fixedly arranged at one end of the through cavity, a cooling groove is formed in the driving key, at least one set of cooling flow channels are evenly distributed in the circumferential direction of the shaft core, and each cooling flow channel comprises a first cooling channel and a second cooling channel; the end parts of the first cooling channel and the second cooling channel are connected through a cooling groove; and the broach mechanism is arranged at one end of the shell, and the broach mechanism is provided with a cooling inflow channel and a cooling discharge channel. The first cooling channel and the second cooling channel are arranged on the shaft core, so that the cooling effect on the shaft core is achieved; and a cooling inflow channel and a cooling discharge channel are arranged in the broach mechanism, and the broach mechanism is arranged in the through cavity of the shaft core to cool the interior of the shaft core and the broach mechanism, so that the effect of simultaneously cooling the shaft core and the broach mechanism is integrally achieved.

The invention relates to a vertical air cylinder groove milling, pulling and grinding all-in-one machine and an air cylinder groove machining method, and relates to the field of air conditioner compressor air cylinder blade grooves. According to the technical scheme, vertical three-station simultaneous machining arrangement is adopted, to-be-machined air cylinder parts of all stations can be synchronously processed, and high machining precision and high machining efficiency are guaranteed from the overall operation process; according to the groove milling mechanism, double milling spindles are arranged on a single groove milling sliding plate in parallel, parts do not need to be turned over and machined in an up-down gradual groove milling mode, efficiency loss of part turning over operation is avoided, positioning deviation caused by turning over is avoided, and the groove milling precision is effectively improved; the broaching mechanism can finish broaching of a front chamfer and a rear chamfer of the air cylinder groove in a one-time up-down reciprocating state, and high efficiency and chamfering precision are both considered; the groove grinding mechanism grinds the air cylinder groove through four procedures through process distribution, the rough grinding and fine grinding processes are accurately controlled, the machining quality of the air cylinder groove is further guaranteed, and finally the efficient and high-precision machining target of the air cylinder groove is achieved.

The utility model discloses a copper large broaching die installation structure which comprises a base, a bracket, a gland, a wheel support, a pressing wheel, an eye die body, a screw rod and a lock nut, the bracket is fixedly installed on the base, a containing cavity is formed in the bracket, the eye die body is installed in the containing cavity, two front hanging lugs are arranged on the front portion of the bracket, and two rear hanging lugs are arranged on the rear portion of the bracket. Two upper hanging lugs are arranged on the top of the bracket, and the rear end of the gland is installed in the two upper hanging lugs in a hinged mode. The eye mold mounting structure is changed into a locking structure that the screw and the lock nut are matched with the U-shaped lock block, the bracket and the gland are locked and fixed, and after the screw and the lock nut are abraded, only the screw and the lock nut are detached and replaced; by means of the mode that the upper compression bolt is used for compressing and positioning, the upper compression bolt does not need to be frequently rotated, the service life of the first threaded hole is prolonged, namely the service life of the bracket is prolonged, five process holes are formed in the bottom of the bracket, and the problem that when a single central process hole is ejected out of the hole die body, the hole die body is ejected out to deflect, and consequently jamming is caused is solved.

The utility model discloses a PCD (Poly Crystal Diamond) reaming and reaming combined cutter which comprises a cutter body, and the cutter body comprises a front guide post, a first blade mounting groove, a second blade mounting groove, a rear guide post and a third blade mounting groove which are integrally formed, and a broaching edge, a reaming edge and a counter sinking edge which are made of PCD materials are sequentially mounted in the first blade mounting groove, the second blade mounting groove and the three-blade mounting groove respectively. Precise guiding is achieved when the cutter rotates at a high speed through the guiding column, resistance generated when the cutter rotates at the high speed is reduced, and the problem that the cutter is prone to being broken is solved; by selecting three blade materials, the problem that the service life of the blade is short is solved, and the working efficiency is further improved.

The invention provides an efficient broach grinding machine with double grinding wheels for collaborative grinding, and belongs to the technical field of broach grinding machines. The problem that a broach grinding machine in the prior art is insufficient in flexibility is solved. The machine tool comprises a machine tool body, an X-axis assembly, a Y-axis assembly and a Z-axis assembly, the X-axis assembly, the Y-axis assembly and the Z-axis assembly are installed in the machine tool body, an upper driving box is installed at the upper end of an X-axis sliding block, an upper workbench is installed at the upper end of the upper driving box and is in driving connection with the interior of the upper driving box, a clamp groove is formed in the upper workbench, and a driving clamp and a driven clamp are connected in the clamp groove; the upper bearing box assembly is installed on one side of the upper end of the upper workbench, the chuck driving motor is installed at the upper end of the upper bearing box assembly and is in driving connection with the interior of the upper bearing box assembly, the chuck cylinder is connected with the chuck base and installed on one side of the upper bearing box assembly, and the interior of the chuck cylinder and the interior of the chuck base are in driving connection with the upper bearing box assembly. The broaching tool supporting device has the advantages of being stable in broaching tool supporting and capable of adapting to multi-size broaching tools.

The utility model discloses a broach with a special tooth embedded blade, which solves the problems that the service life of the existing broach is short due to the fact that the special tooth is easy to abrade in the broaching process to cause meat falling and strain at an outlet, and the existing broach is lack of special structural design in the radial direction and is not capable of improving the performance of individual teeth. The cutter comprises a cylindrical cutter body, a cutter strip groove is formed in the outer wall of the cutter body in the direction parallel to the central axis, a cutter strip is arranged in the cutter strip groove and connected to the cutter body through a bolt, and a plurality of special key grooves are formed in the cutter strip at equal intervals to form special teeth. The cutter further comprises a plurality of rows of spline cutting teeth, each row of spline cutting teeth is arranged on the outer wall of the cutter body, and the two ends of each row of spline cutting teeth are located on the two sides of the corresponding cutter strip groove respectively. A plurality of splines are arranged on each row of spline cutting teeth at equal intervals to form the spline cutting teeth; the broach is an assembly type broach, the blade can be replaced according to the actual use condition, and the economic cost is reduced.

The utility model discloses battery bottom welding equipment and production line, battery bottom welding equipment comprises a conveying mechanism, a driving mechanism, a hot broaching mechanism, a center hole detection mechanism and a welding mechanism, the driving mechanism comprises a driving main shaft and a plurality of cam connecting rod parts, and the driving main shaft drives the plurality of cam connecting rod parts to move; the multiple cam connecting rod components can drive the reaming component and the negative electrode welding pin to move, the reaming component and the negative electrode welding pin use the same power source, and the stability of equipment operation is improved. And the heated reaming part irons the center hole, so that the center hole can be expanded and subjected to thermoplastic molding, and a welding needle can be conveniently inserted. The center hole detection mechanism detects the center hole before welding and judges whether the center hole of the battery meets the requirement for insertion of the welding pin or not. The welding mechanism comprises a positive electrode welding needle, a negative electrode welding needle and a first driving component, the first driving component drives the positive electrode welding needle to move, the cam connecting rod component drives the negative electrode welding needle to move, welding of the battery cell bottom and the steel shell is completed, and the welding effect is guaranteed.

The present invention discloses a graphite heat exchanger processing device, belonging to the field of planing and cutting, which includes a workbench; a processing bin with an open upper part for placing a heat exchange block is arranged in the workbench; an axial processing mechanism is arranged above the workbench, and the axial processing mechanism includes a movable and axially arranged broaching head; a radial broaching bin communicated with the processing bin is arranged in the workbench at a position on one side of the processing bin, and a radial processing mechanism is arranged in the radial broaching bin. The radial processing mechanism includes a radial broaching head that is perpendicular to the axial processing mechanism and does not intersect with the broaching head of the axial processing mechanism. The graphite heat exchanger processing device of the present invention can firmly clamp and accurately broach holes in the heat exchange block, and has high production efficiency.

The present invention relates to the technical field of turning and hole-pulling processing equipment, specifically to a pin-pulling and hole-pulling device for a small reactor cylinder, comprising a broaching workbench, a three-jaw chuck arranged at the top of the broaching workbench, and a semicircular support bracket fixed to one side of the top of the broaching workbench. Through the linkage configuration of the three-jaw chuck, the semicircular support bracket, the spiral telescopic assembly and the reciprocating hole-pulling assembly, during the processing process, the device can accurately control the clamped cylinder to synchronously perform a compound motion of axial extension and circumferential rotation, and stop after the cylinder completes the spiral displacement of a preset angle, and then drive the turning and hole-pulling mechanism to feed vertically, and perform hole-pulling operations on the surface of the cylinder switched to the processing station. This integrated design breaks through the limitations of the traditional step-by-step processing mode, so that the entire device can perform uniform spiral hole-pulling operations, and significantly shortens the processing cycle by eliminating manual intervention nodes and turnover losses between processes, thereby improving overall processing efficiency.

The utility model relates to a cutter clamping device of a cylinder broaching machine. The device is characterized by comprising a shell, a fixing rod, a reaming cutter, a fixing device and a cutter clamping and stabilizing assembly, the fixing rod is fixedly connected to the shell, the reaming cutter is fixedly connected to the fixing rod, the fixing device is fixedly connected to the shell, a supporting seat is fixedly connected to the shell, and the cutter clamping and stabilizing assembly is installed on the supporting seat; the broaching tool has the advantages that the broaching tool moving downwards during rotation can be limited by the balls and the protective cover through the balls capable of freely rolling in the protective cover, the limiting effect on the broaching tool is achieved, and the broaching tool has good stability in use; the handle is rocked to rotate clockwise to drive the worm, the worm is driven to rotate the worm gear, then the worm gear drives the rack to move upwards through the gear, the function of controlling the height of the fixing base is achieved, and the effect that the reaming adaptability of the device to workpieces of different sizes is improved is achieved.

The present application relates to the technical field of aero-engine manufacturing, and discloses a warm alloy GH901 turbine disc mortise broach structure optimization and processing method, the process selects T15 high-speed steel as a broach base material, the chemical composition is as follows: carbon 1.55%, silicon 0.38%, manganese 0.35%, chromium 4.00%, tungsten 13.00%, vanadium 5.00%, cobalt 5.00%, after heat treatment, the hardness reaches HRC66-68.5, by optimizing the complete broach structure and the distribution of broaching allowance, and after broach finishing, TiN coating treatment is carried out, the coating is used to maintain the sharpness of the blade edge, by decoupling the distribution of the broaching allowance of L8 and L9 broaches, the mortise allowance is borne by L8 alone, and the tenon allowance is borne by L9 alone, the two tool processing areas are completely separated, the stepped allowance caused by tool joint misplacement is effectively avoided, and the tooth surface excess meat defect is eliminated from the source, the present application effectively solves the problems of serious tool wear and unstable processing quality in the broaching of high-temperature alloy mortise, and greatly improves the tool service life and processing stability.

The invention discloses a broaching die for bearing ring production and a machining treatment process of the broaching die. And the reaming die is prepared by processing a 4CrMnSiMoVNi alloy bar with silicon distributed in a gradient manner. The 4CrMnSiMoVNi alloy rod with silicon in gradient distribution comprises the following chemical components in percentage by weight: 0.20%-0.50% of carbon, 1.00%-1.50% of chromium, 0.80%-1.50% of manganese, 0.20%-0.50% of molybdenum, 0.10%-0.30% of vanadium, 0.90%-1.50% of nickel, less than or equal to 0.030% of sulfur, less than or equal to 0.030% of phosphorus, and silicon with the content in gradient change from the surface to the center of the alloy rod, the silicon content in the center of the alloy rod is 0.20%-0.60%, the silicon content in the surface is 1.00%-1.30%, and the balance of iron and inevitable impurities.

1. The name of the design product: broach. 2. The use of the design product: forming tool for broaching. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 2.

The invention discloses a method and a device for automatically regulating and controlling the drilling length of a gas extraction directional long drilling hole, and belongs to the technical field of mine gas control. The method comprises the following steps that the position of a directional long drill hole is determined, and drilling construction is conducted; broaching is conducted at some positions of directional long drilling construction, and broaching sections are formed; laying a gas extraction pipe, and arranging a drilling length automatic regulation and control device at the reaming section; and when it is monitored that the gas concentration and the pure amount reach preset starting values, the drill hole is automatically blocked, and automatic regulation and control over the length of the drill hole are achieved. According to the method for automatically regulating and controlling the length of the drill hole, automatic regulation of the length of the drill hole is achieved according to parameters such as gas concentration and purity in the gas extraction pipe in cooperation with the bag capable of being automatically opened in the directional long drill hole, and the site construction burden is relieved; meanwhile, bidirectional plugging can be carried out from the inside and the outside of the extraction pipe, the length of the drill hole is effectively reduced, the gas extraction efficiency is improved, and the service life of the directional long drill hole is prolonged.

The invention belongs to the field of metal materials, and provides 1000 MPa cold-rolled continuous annealing CH steel with the ultrahigh broaching performance and a preparation method of the 1000 MPa cold-rolled continuous annealing CH steel with the ultrahigh broaching performance. 0.80% to 1.40% of Si; the content of Mn is 2.00%-2.20%, and the content of Ti is 0.025%-0.040%; p is less than or equal to 0.01%; s is less than or equal to 0.008%, and the balance is Fe and inevitable impurities. The preparation method comprises the steps of smelting, continuous casting, hot rolling, acid pickling, cold rolling, continuous annealing and flattening. The yield strength of the steel plate produced by the method is 850-950 MPa, the ductility is greater than 15%, and the hole expansion rate is greater than 80%; good fatigue performance is achieved, and the high-cycle fatigue strength limit is larger than or equal to 485 MPa.

The broaching device for machining and manufacturing the internal spline gear comprises an installation frame, a penetrating opening is formed in one side of the installation frame, a clamping mechanism is arranged at the position, close to the penetrating opening, of the side face of the installation frame and is adjustable integrally, a positioning frame is installed on the side, close to the clamping mechanism, of the installation frame, and a clamping mechanism is installed on the positioning frame. A mounting base is arranged in the positioning frame in a sliding mode, and a spline broaching tool located in the penetrating opening is arranged on the mounting base. According to the broaching device for machining and preparing the internal spline gear, the clamping assembly for positioning the half axle gear is arranged on the outer side, the clamping assembly can be adjusted according to the type of the half axle gear, the broaching device is suitable for clamping and positioning when the half axle gears of different types are broached, meanwhile, the liquid spraying assembly is arranged for cooling and cleaning a spline broaching tool, and the machining efficiency is improved. Chippings adhered to the spline broaching tool are reduced, the situation that the structural strength of the spline broaching tool is affected by heating after long-time use is prevented, and the service life of the spline broaching tool is guaranteed.

The present application relates to the gradual formation and the same profile combination tenon and slot cutter blade shape space curve parameterization design method, including the following steps: step one, shooting tenon and slot image; Step two, tenon and slot shape curve is discrete; Step three, calculate control point and fit approximation curve; Step four, the same profile cutter tooth space curve design: step five, gradual formation type cutter tooth space curve design; Step six, tenon and slot broach cutter tooth space curve output. The present application reduces the difficulty of tenon and slot broaching cutter space curve parameterization design; The parameterization of the cutter blade space curve realizes the unity of parameter selection, improves the stability of the broach design, and proposes the transition boundary and method of the gradual formation and the same profile combination, solves the problem of difficult to determine the gradual formation and the same profile transition method, reduces the design difficulty; At the same time, the parameterization design solves the long cycle and low efficiency problem of the traditional design method, improves the design efficiency of the broach, and reduces the cost of broach design and manufacturing.

The utility model discloses an automobile headrest pipe frame production line which comprises a bent pipe feeding device, a two-way pipe bending machine, a transfer mechanical arm and a vertical gear broaching machine, the bent pipe feeding device is located on one side in front of the two-way pipe bending machine, the vertical gear broaching machine is located on the other side in front of the two-way pipe bending machine, and the transfer mechanical arm is located in front of the two-way pipe bending machine. The pipe bending feeding device can transfer a pipe to the position in front of the two-way pipe bending machine to be clamped by the two-way pipe bending machine, the two-way pipe bending machine can bend the pipe into an automobile headrest pipe frame, the transferring mechanical arm can transfer the automobile headrest pipe frame into the vertical gear broaching machine, and the vertical gear broaching machine can conduct gear broaching machining on the automobile headrest pipe frame. According to the automobile headrest pipe frame production line, automatic production of automobile headrest pipe frames can be achieved, and the production efficiency and the product quality are greatly improved.

This invention relates to a teardrop-shaped chip divider for precision broaching of tenon grooves in aero-engines, belonging to the field of aero-engine manufacturing technology. The chip divider features a smooth contour composed of arcs and straight lines within a specific range, and is tangentially connected to the back face of the cutting teeth. This results in a large, smooth, streamlined cross-section without sharp points, effectively solving the industry problem of sharp-cornered chip dividers scratching the machined surface of the workpiece during precision broaching. While ensuring chip breaking and chip separation functions, it significantly improves the surface roughness quality of the tenon groove. It is suitable for precision broaching of high-requirement parts such as compressor discs and fan discs, improving blade machining efficiency.

The utility model discloses a split type chambering auxiliary tool for a drill bit, which belongs to the technical field of drill bits, and comprises a connecting pipe, a connecting assembly, a chambering assembly, a gasket, a scale assembly, a clamp spring and a jackscrew, the connecting pipe comprises a pipe body, one side of the pipe body is connected with a connecting rod, a clamp spring groove is arranged outside the pipe body, a first thread groove is arranged in the pipe body, and a second thread groove is arranged in the pipe body. An inner threaded hole is formed in the pipe body, and the jackscrew is connected into the inner threaded hole in a threaded mode. According to the tool, the pipe body and the reamer bit can be assembled and connected through the threaded rod to form a split combined structure which is not prone to falling off, when the tool needs to be connected with external drill bits of different sizes, only the reamer bits matched with the different sizes need to be replaced, the adaptability of the tool is improved, the reamer bit is convenient to replace, and operation is convenient. And when the broaching part of the tool is damaged, the tool can be continuously used only by replacing the broaching drill bit, so that the use cost of the tool is reduced.

This application provides a compact high-speed narrow right-angle milling head with automatic broaching and internal cooling functions. It includes a milling head body, a splined shaft, and a narrow right-angle milling head spindle, and further includes a transmission mechanism disposed between the splined shaft and the narrow right-angle milling head spindle. The transmission mechanism includes a first bevel gear, a second bevel gear, and a multi-stage spur gear set that mesh sequentially. The first bevel gear is coaxially fixed to the splined shaft, and a driven gear is coaxially fixed to the narrow right-angle milling head spindle. The multi-stage spur gear set is used to achieve the transmission connection between the second bevel gear and the driven gear. An automatic broaching mechanism is provided on the narrow right-angle milling head spindle. The automatic broaching mechanism includes a first broaching assembly and a second broach release assembly arranged in parallel. The first broaching assembly is disposed inside the narrow right-angle milling head spindle, and the second broach release assembly is fixed to the bottom of the milling head body. This application can be disassembled into two structures: one with internal cooling and one without internal cooling, and successfully integrates an automatic broaching and release mechanism under extremely narrow space constraints.

The present application relates to broaching technology field, specifically disclose a large turbine disk mortise broaching machine main transmission device, including the casing, the top of the casing is hinged with machine cover, the surface of the machine cover is provided with a notch, the both sides of the casing are provided with a strip-shaped mouth, the inner bottom wall of the casing is fixedly installed with the coaming, the inner side of the coaming is fixedly installed with the shell, the large turbine disk mortise broaching machine main transmission device, the displacement driving motor drives the rotation of the lead screw, the lead screw drives two lead screw sleeves to be synchronized to approach, the rack assembly, the driving assembly and the cleaning assembly will be folded by sliding sleeve on the slide bar, until the toothless end of the broach side surface is attached to the outside of the turbine disk, then the main transmission motor drives the driving helical gear to rotate, the driving helical gear drives the rack shell, the slide bar and the broach to slide in the guide rail shell, the side surface of the broach contacts the outside of the turbine disk to realize the broaching, so as to conveniently cut the purpose of the outer surface of the turbine disk.