247 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 relates to a spinning method for an internal tooth-shaped transmission part, which comprises the following steps: in finite element software, establishing a model of a plate-shaped blank and a spinning tool which are the same as those of an actually processed transmission part, and carrying out drawing spinning simulation processing on the plate-shaped blank by using the spinning tool to obtain a cylindrical blank subjected to simulation forming; then a model of the spinning tool is used for conducting single-pass spinning simulation machining on the cylindrical blank, and the simulation rolling reduction needed by the tooth height of the inner tooth profile of the transmission part is determined; and drawing spinning and single-pass spinning are adopted, the transmission part is actually machined by using the rolling reduction, and the transmission part with the inner tooth shape is obtained. Compared with a traditional extrusion, broaching and composite forming method, the spinning method for producing the internal tooth-shaped transmission part has the advantages that the fiber flow direction of an original blank is reserved, the surface quality of the part is high, and the production efficiency is improved.

The invention belongs to the technical field of machining, and particularly relates to a turbine disc mortise accurate positioning method for a five-axis numerical control broaching machine, which comprises the following steps of: S1, constructing a broaching force model, carrying out a broaching force test, and respectively obtaining turbine disc mortise broaching force coefficients in x, y and z directions so as to establish a single-tooth broaching force model; secondly, a multi-tooth broaching force model is built on the basis of a single-tooth cutting force model, S2, mechanical deformation analysis is conducted, and the workpiece deformation amount is calculated according to cutting force; measuring the displacement variation of a mortise cutting point by adopting laser; linear equation fitting is carried out based on the numerical values of the multiple sets of workpiece deformation and displacement variation, and a corresponding linear equation is obtained; and S3, when the broaching machine is adopted for machining, the cutting force is calculated based on the broaching force model, then corresponding cutting force loads are applied to the mortise broaching machine finite element model, deformation in the x direction, the y direction and the z direction is obtained, the actual deformation amount is calculated according to the linear equation in the S2, and accurate positioning coordinates are obtained.

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 present invention concerns a working aggregate (1), for machining a workpiece (P), such as panels and the like, made of aluminum, bronze, plastic, wood and the like, comprising: a power take-off (2) for force coupling to an electro-spindle; a drilling unit (3), having a drill bit (31), wherein said drilling unit (3) is operatively coupled to said power take-off (2) to receive driving force for making a hole (F) on said workpiece (P) by means of said drill bit (31); and a rotary broaching unit (4), having a broaching tool (41), wherein said rotary broaching unit (4) is operatively coupled to said power take-off (2) to receive driving force for carrying out rotary broaching processing on the hole (F) made on said workpiece (P) by means of said drill bit (31). The present invention also concerns a working center (100) and a method of machining a piece (P).

The utility model relates to the technical field of cold heading dies, in particular to a multi-station cold heading die which comprises a mounting rod, a lower die, an upper die, a shaping block and an adjusting device, the lower die is arranged on the upper surface of the mounting rod, the upper die is arranged above the lower die, the shaping block is arranged in the lower die, and the adjusting device is arranged on the upper surface of the mounting rod. And the adjusting device is arranged in the lower die and comprises a broaching hole and a limiting groove, the limiting groove is formed in the side face of the shaping block, and the broaching hole is formed in the lower die. By arranging the adjusting device, the shaping block is effectively adjusted, the effect of adjusting the shaping block is achieved, and the problems that when equipment is used, an equipment mold is generally integrated, when the technology of cold heading materials is adjusted, the whole mold needs to be replaced, the operation is too tedious, the time of operators is easily wasted, and the production cost is reduced are solved. And the working efficiency of operators is low, and the practicability of the equipment is improved.

The utility model relates to a workpiece broaching machine, in particular to a workpiece broaching machine with an automatic clamping structure. The workpiece broaching machine with the automatic clamping structure comprises a base, a workbench, an air cylinder, a downward pressing rod, a broaching machine body, a spindle head, a hinge rod and the like, the workbench is fixedly connected to the base, the air cylinder is installed on the workbench, the downward pressing rod is fixedly connected to a telescopic rod of the air cylinder, and the spindle head is installed on the lower pressing rod. The broaching machine is installed on the lower pressing rod, the spindle head is arranged on the broaching machine, and the two ends of the lower pressing rod are rotationally connected with the hinge rods. The broaching machine and the pressing rod are driven to move through the telescopic rod of the air cylinder, meanwhile, the hinge rod extrudes the clamping plate to move, a workpiece can be automatically clamped while broaching is conducted on the workpiece, and therefore the workpiece is prevented from deviating due to friction force during broaching, potential safety hazards are avoided, and working efficiency is improved.

The invention discloses a machining method for an input shaft of an electric drive assembly generator. The machining method comprises the following steps of first finish turning, second finish turning, gear hobbing, spline broaching, heat treatment, spline hard broaching, outer circle and end face grinding and gear grinding. In the step of hard pulling of the spline, the internal spline is subjected to hard pulling after being heated, the large diameter, the small diameter and the tooth side of the internal spline are subjected to hard pulling, and the precision of the internal spline subjected to heat treatment is corrected. In the step of grinding the outer circle and the end face, an internal spline of the input shaft of the generator is expanded, the end face and a center hole are positioned, and the outer circle and the end face of the input shaft of the generator are ground. In the gear grinding step, the internal spline of the input shaft of the generator is expanded, the end face is positioned, and gear grinding is conducted on the gear. Thermal deformation of the internal spline is corrected after heat treatment, then the internal spline is adopted as a standard for machining of subsequent procedures, the standard is unified, and it is guaranteed that the internal spline of the generator input shaft and the external spline of the generator rotor are well matched, torque is transmitted, a bearing operates stably, and operation stability of an electric drive assembly is guaranteed.

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 utility model discloses a three-station two-stage material pushing device and a vertical broaching machine, and the three-station two-stage material pushing device comprises a base which is provided with a first sliding rail; the middle plate is slidably mounted on the first sliding rail and connected with a first driving device for driving the middle plate to slide along the first sliding rail; the middle plate is provided with a second sliding rail; the operation panel is slidably mounted on the second sliding rail and connected with a second driving device for driving the operation panel to slide along the second sliding rail; the length extension directions of the first slide rail and the second slide rail are the same; the operation plate is provided with a plurality of workpiece positions which are used for placing workpieces. According to the three-station two-stage material pushing device, workpieces can be conveniently taken and placed, the working convenience of operators is improved, and the operation risk is reduced.

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 utility model relates to the technical field of rubber bushing chambering inspection, and provides a rubber bushing chambering inspection device, which comprises a mounting seat, a positioning hole, a positioning pin, a positioning pin, a positioning pin and a positioning pin, and is characterized in that the mounting seat is provided with a positioning hole for placing a rubber bushing; the chambering rod is arranged on the mounting seat in a sliding manner, and the chambering rod is used for chambering the rubber bushing after sliding; the abutting plate is arranged on the mounting base in a sliding mode, the abutting plate is provided with a first receding hole, and the reaming rod slides along the first receding hole; one end of the first guide rod is arranged on the mounting base, and the abutting plate is arranged at the other end in a sliding mode; one end of the elastic part is arranged on the mounting base, the other end of the elastic part is arranged on the abutting plate, the first guide rod is sleeved with the elastic part, and the elastic part is used for providing force for the abutting plate to be close to the rubber bushing. Through the technical scheme, the problem that the rubber bushing is difficult to take down due to the fact that the rubber bushing is attached to the broaching rod after broaching is conducted on the rubber bushing in the related technology is solved, integration of broaching and broaching size inspection is achieved, and integrated recognition of broaching effectiveness is achieved.

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 utility model is suitable for the technical field of agricultural tractor transmission shaft connecting piece production, and provides an agricultural tractor transmission shaft connecting piece production reaming device which comprises a bottom plate, a plurality of first vertical plates and a plurality of second vertical plates. The first screw rods are rotationally mounted on the plurality of first vertical plates; the first servo motor is fixedly mounted on the bottom plate and is connected with the first screw rod; the displacement plate is arranged on the first screw rod in a threaded and sleeving manner; and the multiple reaming machining mechanisms are arranged on the displacement plate, and the multiple reaming machining mechanisms are used for conducting reaming machining on the multiple agricultural tractor transmission shaft connecting pieces. According to the broaching device for agricultural tractor transmission shaft connecting piece production, broaching machining can be conducted on multiple agricultural tractor transmission shaft connecting pieces at the same time, and the multiple transmission shaft connecting pieces of different sizes can be clamped and fixed in the broaching machining process, so that the machining precision is improved; and meanwhile, the reamer is convenient to disassemble and replace.

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 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 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 invention relates to the technical field of pipeline laying, in particular to a trenchless pipeline laying construction method which comprises the following steps: S1, surveying and setting out, and determining a construction position; s2, working pits are excavated, and the working pits are excavated in the two sides of the road surface correspondingly; s3, a drilling machine is placed in place, and the drilling machine is placed at a designated position; s4, guide hole drilling is conducted, specifically, the position of a guide drill bit of a drilling machine is adjusted, so that the guide drill bit drills into the soil according to a pre-designed track, and a drill hole communicating with the working pits on the two sides is drilled; s5, broaching is conducted, specifically, after the guiding drill bit reaches the expected position, the guiding drill bit is detached, a broaching drill bit is replaced, broaching is conducted through the broaching drill bit, then the broaching drill bits with the diameters increasing in sequence are sequentially replaced, broaching operation is repeatedly conducted, and the diameter of a drilled hole reaches the designed diameter; s6, pipe pulling is conducted, specifically, the pipeline is pulled into the drill hole, and the pipeline is laid at the designated position; and S7, pipeline welding. The method has the effect of avoiding adverse effects on life and traffic of residents in the construction process.

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 present invention provides an EPS joint fork intelligent manipulator broaching machine, which includes a feeding mechanism, an arranging and conveying mechanism, a spline broaching device and a positioning and feeding tooling. There are two conveyor belts for conveying universal joint forks on the arranging and conveying mechanism. Along the conveying direction of the conveyor belts on the arranging and conveying mechanism, a first material blocking mechanism, a second material blocking mechanism and a positioning blocking frame are successively arranged. There are two feeding manipulators on the feeding mechanism. There are two broaching tool mechanisms for broaching splines of the universal joint forks in the spline broaching device, and a positioning and feeding tooling movably arranged on one side of the broaching tool mechanism. A positioning mechanism and a material pressing mechanism are arranged on the positioning and feeding tooling. Two positioning discs and a material pressing mechanism are arranged on the positioning mechanism. A central positioning cavity for installing the universal joint fork is arranged in the positioning disc. Two material pressing cylinders are arranged on the material pressing mechanism. This device can automatically arrange and feed materials for broaching splines of the joint forks, reduce labor intensity and improve production 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.