118results about "Broaching tools" patented technology

The broaching device comprises a device rack, a lifting mechanism, a broaching tool set, a rotating station mechanism, a cleaning and guniting mechanism and a driving device.The lifting mechanism is arranged on the device rack, the broaching tool set is fixedly connected to a lifting motion frame of the lifting mechanism and comprises a plurality of broaching tool bodies, and the rotating station mechanism is arranged on the lifting motion frame of the lifting mechanism. Besides, a rotating station mechanism is arranged at the position, located at the bottom of the broaching tool set, of the device rack, the rotating station mechanism comprises a rotating disc and a plurality of sets of station tables fixedly connected to the rotating disc, and the lifting motion frame is in power connection with the rotating disc through a one-way transmission mechanism. A cleaning and slurry spraying mechanism used for cleaning and cooling the broaching tool set is further arranged on the device rack, a driving device is fixedly connected to the device rack, and the driving device is in power connection with the lifting mechanism and the slurry pump body. The device has the characteristics of reducing the maintenance and repair cost, improving the production efficiency and improving the processing quality.

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 present invention relates to the field of mechanical processing technology, and more specifically, to a machine tool for grinding and processing a broaching tool, comprising a fixing device, a clamping and stretching device arranged inside the fixing device, a hydraulic cylinder for driving the clamping and stretching device to move as a whole, and a cutting device arranged outside the clamping and stretching device. In the machine tool for grinding and processing a broaching tool, when the stretching bracket moves, the moving rack is driven to move together, and through the driving system, the rotating ring body in the spraying part is driven to rotate together with two groups of symmetrically distributed spraying heads, and when multiple groups of cutting devices fixed inside the tool placement table perform involute processing on the broaching tool, the processing part of the broaching tool is subjected to a cooling treatment, thereby ensuring the accuracy of the involute processing.

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 present invention relates to a tool for dressing grinding wheels of a grinding and broaching machine, and relates to the field of grinding technology. The tool for dressing grinding wheels of a grinding and broaching machine includes a tool mounting frame, a tool rotating device, a traction feeding device, a cutting sensing device and a cutting energy storage device. The tool mounting frame is installed on the broach transverse movement device, the tool rotating device is rotatably installed on the tool mounting frame, the traction feeding device is slidably installed on the tool rotating device, the cutting sensing device includes a cutting block, a friction active plate and a friction reference plate, the friction reference plate is installed on the tool rotating device, the friction active plate is rotatably installed on the traction feeding device, the cutting block is slidably installed on the traction feeding device, the cutting block pushes the friction active plate close to the friction reference plate and rubs against the friction reference plate, the cutting energy storage device is installed on the traction feeding device, the cutting energy storage device is transmission-connected to the traction feeding device, and the cutting block is slidably installed on the traction slider to facilitate grinding wheel dressing.

A broach device for simultaneously machining a plurality of arc grooves in the outer surface of a workpiece comprises a tool apron which is of a disc-shaped structure, and a cylindrical mounting hole used for containing and positioning a tool is formed in the center of the tool apron; the broaching tools are evenly distributed in the circumferential direction of the tool apron, and each broaching tool comprises a tool body used for installation and positioning; the shape of the tooth part is composed of a section of arc and two oblique lines tangent to the arc, and the radius of the arc is smaller than that of the outer circle of the workpiece; and the plurality of screws are used for fixing the broaching tool in the positioning groove of the tool apron through the screw holes in the tool body.

The utility model provides a spindle broach structure, which relates to the technical field of machine tool spindles and comprises a broach rod, a broach ring and a pull rod, the broach rod is attached to one end face of the broach ring, a spindle core is arranged in the center of the other end of the broach rod, the pull rod extends into the spindle core, and a pull rod component is arranged in the spindle core. An air guide channel is formed among the unclamping rod, the unclamping ring and the pull rod; when the novel broach system is assembled, only the concentricity of the shaft core and the through hole of the pull rod needs to be corrected, the requirements for the size precision and the surface roughness of parts are reduced, and the working efficiency is effectively improved; an anti-wear ring between the cutter beating ring and the shaft core is omitted, the influence of friction force attenuation caused by abrasion of the anti-wear ring on the cutter pulling force of the main shaft is reduced, and then accurate and stable cutting operation of the main shaft is guaranteed.

The utility model relates to the technical field of broaching tools and provides a heavy-load broaching tool assembly which comprises a broaching tool box and a broaching tool arranged on the broaching tool box, an inserting hole is formed in the back face of the broaching tool box, a first hanging column is arranged on the first side face of the broaching tool box, and a second hanging column is arranged on the second side face of the broaching tool box. According to the heavy-load broach assembly, a complex grabbing clamp does not need to be adopted for fixing the broach box to carry out operations such as feeding, feeding and discharging of broaches any more, so that the operations such as loading, taking and placing of the heavy-load broach assembly are very convenient and fast, and the heavy-load broach assembly is convenient to use. The broach box can be conveniently and rapidly fixed in the using process of the heavy-load broach assembly.

A broach (20) or broach segment (20) has a spine (22). A longitudinal array of teeth (40-1...40-n) protrude from the spine (22), each said tooth (40-1...40-n) having: a first face and an opposite second face; and a distal surface joining the first face and second face; and at least some of the teeth (40-1...40-n) being firtree teeth (40-1...40-n) and have a peripheral trench adjacent the cutting edge of the at least one tooth (40-1...40-n).

The broach mechanism for the long-span main shaft comprises a main shaft body, the surface of a pull rod is movably connected with a pull rod sliding sleeve in a sleeved mode, a sealing ring is installed on the surface of one side of the pull rod sliding sleeve in an embedded mode, the outer side of the pull rod sliding sleeve is connected with a sliding sleeve fixing block, and the sliding sleeve fixing block is fixedly connected with the main shaft body. A hexagonal groove hole is fixedly formed in the surface of one side of the sliding sleeve fixing block, four sets of rear bearings and four sets of front bearings are installed on the inner side of the main shaft body, a front bearing seat is fixedly installed on one side of each front bearing, movement of a pull rod is separated from rotation of a rotor assembly, the complexity of the pull rod is reduced, and the service life of the pull rod is prolonged. And the number of structural parts is reduced. The fixing of the pull rod sliding sleeve can effectively reduce vibration and noise caused by too many degrees of freedom of the pull rod, the front bearing and the rear bearing are used at the front end of the main shaft body, through the paired use of the bearings, the axis positioning of the rotor assembly during high-speed rotation can be kept, and vibration and deviation are reduced.

The invention discloses a broaching device for an arc mortise, and relates to the field of machining, the broaching device comprises a broaching tool disc, a turbine disc driving mechanism and a turbine disc clamping mechanism, the broaching tool disc is connected with the broaching tool disc driving mechanism, the broaching tool disc comprises a broaching tool disc base body and a sliding broaching tool handle, and a plurality of linear guide rails are arranged on the surface of the broaching tool disc base body; a lead screw is installed in the linear guide rail, and one end of the lead screw is connected with a broach driving mechanism. The sliding broach handle is in threaded fit with the lead screw, and one or more broaches are mounted on the sliding broach handle; the turbine disc driving mechanism comprises a turbine disc rotating mechanism and a turbine disc telescoping mechanism, the turbine disc is installed on the turbine disc rotating mechanism, and the turbine disc rotating mechanism is connected with the turbine disc telescoping mechanism; the turbine disc clamping mechanism comprises a two-way sliding rail structure, and the turbine disc telescopic mechanism is fixed to the two-way sliding rail structure. The arc-shaped mortise matched with the arc radius of the mortise can be accurately machined, and the machining efficiency and quality are improved.

An internal helical broaching tool has a pre-broaching tool portion ex-tending in one broaching direction and a subsequent precise sizing tool portion. The latter, as a whole, is made of a hard metal with a density of greater than 10 g / cm3. This results in an internal helical broaching tool with increased service life at a defined machining performance.

This invention provides a broaching tool structure with complementary irregular cutting edges, including a tool holder, a precision adjustment component, a tool holder, and broaching inserts. The bottom of a guide rail is fixed to the tool holder, and the top of the guide rail has a groove that slides with a slide block. The tool holder is fixed to the slide block. Below the groove, the guide rail has an adjustment groove. A first wedge and a second wedge are positioned within the adjustment groove, their inclined surfaces engaging. The guide rail has an adjustment hole. A cylindrical boss is located on the outer surface of the first wedge, passing through the adjustment hole. A coarse adjustment sleeve is axially positioned within the adjustment hole and threaded onto the boss. A fine adjustment screw is axially positioned inside the boss and threaded to the outer surface of the first wedge. The second wedge is connected to the bottom of the slide block. An elastic reset element is positioned between the first or second wedge and the adjustment groove. This invention solves the problems of existing broaching tool cutting edge positions being unadjustable or having low adjustment resolution.

The application discloses a super-long internal broach for long-ratio inner hole profile broaching, which comprises a broach bar, a broach disc, a broach handle and a broach holder. The broach disc is detachably arranged on the broach handle. One end of the broach holder is detachably arranged on the broach handle and is positioned and connected with the broach disc. The other end of the broach holder is detachably connected with one end of the broach bar. The other side of the broach bar is detachably arranged on a machine tool. The application solves the problems of single broach manufacturing difficulty, multi-broach tool changing inconvenience, high manufacturing cost and high labor intensity when the conventional internal broach is used to broach a large aperture and a long-ratio hole with a ratio greater than 5 times. When the aperture is greater than 100 mm and the long-ratio is greater than 25 times, the application solves the bottleneck problem of being unable to manufacture. The broaching part and the non-broaching part are separated. The working part and the non-working part are clamped and loosened by hydraulic pressure. There is no pipeline winding, and the disassembly and assembly are convenient, and the labor intensity of workers is low.

The utility model discloses a high-precision numerical control broaching edge grinding machine, and relates to the technical field of broaching edge grinding machines. Comprising a grinding machine base, a machining mechanism used for the high-precision numerical control broaching edge grinding machine is arranged on the grinding machine base, the machining mechanism comprises a machining assembly, and the machining assembly comprises a supporting platform fixed to the upper end face of the grinding machine base. The grinding wheel and the broach are prevented from being damaged due to overheating, meanwhile, the spraying of the water source can play a role in lubrication, friction between the grinding wheel and the broach is reduced, grinding efficiency and quality are improved, grinding precision and surface quality are improved, and chippings in air are effectively reduced, so that the working environment is improved, and harm of dust to health of operators is reduced. A water source containing waste chips directly flows into the water collecting shell through the through holes to be collected, and the waste chips and sewage can be rapidly cleaned away.

The application discloses a kind of cutting performance prediction methods of flocking broach.The method includes the following steps: one, the effective contact length of the tested broach in cutting process is obtained.Two, the transduction coefficient for evaluating the heat dissipation capacity of the tested broach is obtained.Three, the broaching performance of the tested broach is judged.The application considers the various parameters of broach rake face flocking and the factor parameters of lubricating fluid, constructs the temperature field mathematical model of flocking broach, and realizes the accurate evaluation of temperature field in the cutting process of flocking broach through transduction coefficient.The application can accurately obtain the effective contact length and transduction coefficient of flocking broach by constructing two mathematical models, and evaluate the cutting performance of flocking broach and provide corresponding optimization scheme for flocking broach.The broaching tool designed for the size of horizontal broaching machine integrated broach realizes the effects of optimizing and reforming traditional broach, convenient disassembly and assembly and replacing single-tooth broach.

The invention belongs to the technical field of mechanical engineering, and discloses a broaching tool with a key groove positioning function, the broaching tool comprises a key groove broach and a broaching sleeve, a first positioning groove is formed in the surface of one side of the key groove broach, a first inner groove is formed in the inner wall of the first positioning groove, a second positioning rib is fixedly installed on the surface of the other side of the key groove broach, and a second inner groove is formed in the inner wall of the second positioning groove. A second sliding block is fixedly installed on the surface of the second positioning rib, a second positioning groove is formed in the inner wall of one side of the pull sleeve, and a second inner groove is formed in the inner wall of the second positioning groove. The broaching tool can be kept stable in position and posture in the machining process through the device, so that the tool is prevented from deviating or shaking due to cutting force or vibration, it can be ensured that the size and shape precision of a machined part meet the design requirement, meanwhile, abrasion and damage of the tool in the machining process can be reduced, and the machining efficiency of the broaching tool is improved. Therefore, the cutter is prevented from tipping or breaking due to excessive vibration, and the service life of the cutter is prolonged.

The invention belongs to the technical field of broaching equipment, and discloses a broach facilitating workpiece positioning and a positioning method thereof.The broach comprises a broach body, broach teeth distributed on the broach body in an array mode and a guide handle, an adaptive side groove is formed in the side face of the broach body, and a self-positioning assembly is elastically connected into the adaptive side groove in a sleeved mode; the bottom of the cutter body is elastically connected with an adjustable positioning mechanism, one end of the adjustable positioning mechanism is fixedly connected with a guide handle, and a hydraulic control mechanism is arranged in the guide handle. The self-positioning assembly which is elastically connected and arranged on the side face of the tool body is matched with a clamp to conduct intermittent clamping during machining and sleeving, so that a workpiece is in self-adaptive broach sleeving, automatic elastic calibration is conducted after sleeving, automatic positioning is completed, transverse deviation in a machining area is avoided, the actual pulling machining precision is greatly improved, and the machining efficiency is improved. Positioning operation is simple, and the using effect is good.

The invention discloses an externally embedded flocked broach; the externally embedded flocked broach comprises a broach body, and a plurality of flocked blade teeth arranged in sequence along the length direction of the broach body. A fluff area is provided on the front cutting surface of the flocking blade teeth; a plurality of fluff fibers are provided in the fluff area. The diameter of a single fiber fluff is 0.8 μm to 10 μm, and the length is 0.6 mm to 1 mm; the invention provides a fluff area on the front cutting surface of the broach blade teeth, so that the front cutting surface of the broach has good lipophilicity, and significantly reduces the friction force and friction coefficient of the blade interface during processing. In the invention, different fluff areas are provided in the rough drawing section, the semi-finishing drawing section and the finishing drawing section; a connected whole fluff area is provided in the rough drawing section to maximize the heat dissipation effect during the rough drawing process; a plurality of mutually isolated partitions are provided in the semi-finishing drawing section and the finishing drawing section, and the channels between the partitions are used to improve the chip removal effect, thereby improving the surface quality of the processed surface of the workpiece.

The utility model relates to the technical field of numerical control machine tools, and discloses a numerical control elevator guide rail broaching machine tool convenient to replace which comprises a first base and a second base, a plurality of side tools arranged in two rows are arranged at the top of the first base, and pressing plates connected with the two rows of side tools are arranged on the two sides of the top of the first base. The two sides of the top of the first base are each provided with a first adjusting screw in threaded connection with the corresponding pressing plate. Two mounting seats are symmetrically arranged on one side of the top of the second base, a left chamfering cutter and a right chamfering cutter are arranged on the two mounting seats respectively, and a second adjusting screw in threaded connection with the two mounting seats is arranged on one side of the top of the second base; a left top cutter and a right top cutter are arranged on the two sides of the top of the second base correspondingly, and third adjusting screws in threaded connection with the left top cutter and the right top cutter are arranged on the two sides of the top of the second base correspondingly. The tool is fixed in a screw pressing mode, disassembly and assembly are convenient and fast, the tool replacement time is greatly shortened, and the production efficiency is improved.

The present invention discloses a broaching device for an arc-shaped tenon groove, which relates to the field of mechanical processing. The device comprises a broaching disc, a turbine disc drive mechanism, and a turbine disc clamping mechanism. The broaching disc is connected to the broaching disc drive mechanism. The broaching disc comprises a broaching disc base and a sliding broaching tool holder. The surface of the broaching disc base is provided with multiple linear guides, and a lead screw is installed in the linear guide. One end of the lead screw is connected to the broaching tool drive mechanism. The sliding broaching tool holder is threadedly engaged with the lead screw, and one or more broaches are mounted on the sliding broaching tool holder. The turbine disc drive mechanism comprises a turbine disc rotating mechanism and a turbine disc telescopic mechanism. The turbine disc is mounted on the turbine disc rotating mechanism, and the turbine disc rotating mechanism is connected to the turbine disc telescopic mechanism. The turbine disc clamping mechanism comprises a bidirectional slide rail structure, and the turbine disc telescopic mechanism is fixed to the bidirectional slide rail structure. The present invention can accurately machine an arc-shaped tenon groove that matches the arc radius of the tenon groove, thereby improving processing efficiency and quality.

The invention relates to an internal broach (10) for machining a workpiece (11) by means of broaching, the internal broach comprising a shaft (12) which extends along a longitudinal axis (20), and a plurality of cutting inserts (14) which can be detachably mounted on the shaft (12) so that, in an assembled state, they are lined up one behind the other along the longitudinal axis (20), wherein the shaft (12) has a cross-sectional shape which deviates from a circular-cylindrical shape in order to produce an anti-rotation device (19) of the cutting inserts (14).

An automatic groove broaching device for tool pliers comprises tooth groove cutting dies which are linearly and fixedly arranged, the tooth groove cutting dies comprise a fixed tooth cutting die, a single variable cutting die and a double variable cutting die, the single variable cutting die is arranged at the lower end of the fixed tooth cutting die, the double variable cutting die is arranged at the lower end of the single variable cutting die, and the shape of the cross section of the fixed tooth cutting die is kept constant; the height of the cross section of the single variable cutting die is constant, the width of the cross section is gradually reduced in the length direction, the height and the width of the cross section of the double variable cutting die are gradually reduced in the length direction, and oil nozzles are arranged in the tooth groove cutting die at intervals. The cross section of the tooth groove cutting die is designed to be gradually changed, cutting resistance can be reduced and cutting scrap iron can be reduced by gradually increasing the feeding amount when a jaw is cut through groove broaching, and the oil spray nozzle can coat lubricating oil on the tooth face of the jaw in the groove broaching operation process, improve groove broaching smoothness and solve the problems that the tooth face is rough, passivated and the like.

The application relates to the field of metal cutting, in particular to a broaching machine and a broaching method thereof. The broaching machine comprises outer surface broaches, the outer surface broaches are provided with a plurality of outer surface broaching teeth, the right part of the lower side of the outer surface broach is uniformly provided with a plurality of broaching teeth, the heights of the plurality of broaching teeth increase from left to right in sequence, the left part of the outer surface broach is provided with a plug hole, the plurality of outer surface broaches are arranged in front and back sticking mode, and a plug rod simultaneously penetrates through the plurality of plug holes. The broaching machine further comprises a door-shaped piece, the door-shaped piece is provided with a limiting groove, the left end of the plurality of outer surface broaches is inserted into the limiting groove, the front and back two ends of the plug rod are respectively inserted into the front and back two sides of the door-shaped piece, and the front and back two ends of the plug rod are all screw-connected with blocking heads. The width of the broach can be adjusted.

The invention relates to the field of gearbox part machining, and discloses a gearbox input shaft machining method which comprises the steps that a spline inner hole is machined in an input shaft blank before heat treatment, an internal spline is machined after heat treatment, then the internal spline is adopted for positioning, and center holes in the two axial ends of the input shaft blank and a journal outer circle are machined. A spline inner hole is machined before heat treatment, and an internal spline is machined after treatment, so that the small diameter of the internal spline and the pitch circle of the internal spline are used as the consent machining reference, the internal spline is used as the machining reference for positioning and machining center holes in the two axial ends of the gearbox input shaft, and the machining reference of the pitch circle of the internal spline and the machining reference of the outer circle of a shaft neck are kept uniform; the central holes in the two axial ends of the input shaft of the gearbox are used for positioning and machining the outer circle of the journal, reference conversion is achieved, the technical precision of the pitch circle of the internal spline and the outer circle of the journal is guaranteed, and the machining precision of the input shaft of the gearbox is improved. The invention further provides the gearbox input shaft and a gearbox assembly.

The invention relates to the technical field of broach grinding machines, in particular to a seven-axis linkage device for a numerical control broach grinding machine, a supporting seat body is further arranged on a control rail, and the supporting seat body is positioned through an arranged regulation and control positioning assembly; the auxiliary mechanism is used for conducting auxiliary supporting on the broach workpiece. Limiting is carried out through matched use of the driving tip and the rotating tip, and on the basis of limiting, flexible support is provided for a broach workpiece through matched use of the arranged supporting seat body and the auxiliary mechanism, so that the influence caused by vibration in the machining process is avoided; when the broach workpiece is rotated, the broach teeth of the broach workpiece are prevented from being scratched and damaged; the method is achieved through cooperative use of the arranged auxiliary roller and the flexible assembly. Besides, a positioning effect is provided for the supporting seat body through the arranged regulating and positioning assembly, the supporting seat body is slidably adjusted on the control rail according to actual machining requirements, and after the supporting seat body is adjusted to a proper position, the position of the supporting seat body is positioned.

The present invention discloses a composite microstructure broach imitating crab claw hair and a preparation method thereof. In the cylindrical pit-shaped microstructures of odd-numbered rows opened on the front blade face and the rear blade face of each blade tooth of the present invention, carbon fibers are planted, in the cylindrical pit-shaped microstructures of even-numbered rows, nylon fibers are planted, and in the cylindrical pit-shaped microstructures opened on the two blade side faces of each blade tooth, lead and copper mixed fibers are planted. Based on the study of the functions and distribution of crab claw hair, the present invention obtains the distribution form of microstructure imitating crab claw hair, opens microstructures on the front blade face, the rear blade face and the two blade side faces of each blade tooth of the broach, and imitates the different functions of crab claw hair, implants carbon fibers or nylon fibers in the microstructures at different positions of the front blade face and the rear blade face, so that the surface of the broach has the functions of wetting, lubrication and liquid self-transportation, and implants lead and copper mixed fibers in the microstructures of the two side blade faces, so that the broach has the functions of vibration suppression and cooling.

The invention belongs to the technical field of machining equipment, and particularly relates to a broaching machine which comprises a machine body, a hydraulic cylinder is arranged at the tail end of the machine body, a tool rest groove is formed in the machine body, and a limiting hole and a workpiece mounting opening are formed in the front end of the machine body. The main tool rest is movably arranged in the tool rest groove and is driven by a hydraulic cylinder to move in the front-back direction of the lathe body; the guide rods are arranged in the tool rest groove, the two guide rods are symmetrically distributed in the left-right direction of the lathe body, and the guide rods are used for limiting the moving direction of the main tool rest; the broach is pulled by the main tool rest to cut the workpiece; the auxiliary mechanism is arranged on the front side of the lathe body and comprises a bracket used for supporting the broach during the return stroke of the broach; the damping mechanism is arranged on the bed body and located in the middle of the bed body in the front-back direction, and the damping mechanism comprises a guide roller with lifting damping in the vertical direction. Compared with the prior art, the working efficiency and the workpiece cutting quality are improved.