3220results about "Boring/drilling components" patented technology

The invention relates to the technical field of drilling equipment, in particular to drilling equipment for automobile brake disc production, which comprises a support, an air cylinder and a mounting table, and an electric control drill bit is arranged on the bottom surface of the mounting table. The second rotating disc slides in a second abutting groove through a second abutting block fixed to the inner side of the second rotating disc when moving downwards along with the first rotating disc, stable rotation of the second rotating disc is guaranteed, the second rotating disc and the first rotating disc rotate coaxially, a second arc-shaped groove is formed in the surface of the second rotating disc, and the second arc-shaped groove is matched with the second arc-shaped groove. The circular block at the bottom of the positioning block close to the center of the connecting disc is inserted into the arc-shaped groove II. When the second rotating disc rotates, the second arc-shaped grooves push the positioning blocks to move along the sliding grooves so as to adapt to the inner diameter size of the brake disc, and therefore multi-point positioning can be conducted on the inner diameter and the outer diameter of the brake disc at the same time, and the clamping stability is improved.

The invention belongs to the technical field of casting tools, and particularly discloses a magnesium-aluminum alloy large casting drilling tool which comprises a fixing frame and a positioning platform, and a lifting frame is arranged on one side of the fixing frame; a driven gear is rotationally installed in the positioning platform, clamping units are arranged on the two sides of the upper portion of the positioning platform, a lower pressing rod is connected to the lower portion of the lifting frame, a sleeve is arranged between the fixing frame and the positioning platform, a driving gear meshed with the driven gear is rotationally installed on the sleeve, and clamping units are arranged on the two sides of the upper portion of the positioning platform. A driving unit is arranged on the rear side of the positioning platform; the acting force of ascending or descending of the pressing rod is used as driving force, the driving unit drives the clamping unit to limit the position of the to-be-machined workpiece and then conduct drilling, after drilling is completed, the pressing rod ascends, and the to-be-machined workpiece rotates through cooperation between a driving gear and a driven gear; therefore, through holes in different positions, staggered up and down, of the workpiece to be machined are drilled.

The invention belongs to the technical field of boring machine tools, and discloses a multi-station numerical control double-face boring combined machine tool which comprises a base and a boring cutter located above the base, and an adjusting mechanism used for adjusting the rotating radius of the boring cutter is arranged above the base. A first driving mechanism used for driving the boring cutter to rotate to bore a workpiece and a second driving mechanism used for driving the external workpiece to rotate to bore the workpiece through the boring cutter are arranged above the base, the arc-shaped rack and the arc-shaped clamping plate can rotate at different positions, and therefore different working modes of the machine tool are completed; when the arc-shaped rack is meshed with the first gear, the boring cutter can be driven to rotate through rotation of the arc-shaped rack, and a workpiece fixed to a machine tool is bored. And when the arc-shaped rack and the arc-shaped clamping plate are far away from the first gear, the arc-shaped clamping plate can be driven by the electric telescopic rod to clamp the workpiece to drive the workpiece to rotate, and a boring cutter is used for boring.

The invention relates to a cleaning structure of a radial drilling machine, and belongs to the technical field of cleaning devices of radial drilling machines. The device comprises a cleaning assembly and a collecting assembly, the cleaning assembly comprises a top pushing part, and the top pushing part is used for being installed on the top of a workbench in a left-right sliding mode; the collecting assembly comprises a collecting box with an open top end; the cleaning assembly further comprises a side pushing piece, the side pushing piece is fixedly connected with the top pushing piece, and the side pushing piece is used for being installed on the front side of the workbench in a left-right sliding mode. The collecting box is used for being installed in an inner cavity of the workbench in a left-right sliding mode, and a feeding hole is formed in the front side wall of the collecting box. The collecting assembly further comprises a guiding piece, the guiding piece is used for being installed on the right side wall of the workbench and located in front of the collecting box, the guiding piece is provided with a guiding face, and the guiding face inclines downwards from front to back. The top and the side portion of the workbench can be cleaned at the same time, cuttings falling from the side portion can be collected, and the cuttings cleaning and collecting effect is better.

The invention relates to the technical field of part machining, and discloses a drilling and milling machine tool for precise metal part machining, which comprises a main body, the top of the main body is fixedly connected with a control panel, and the drilling and milling machine tool further comprises an adjusting mechanism, and the adjusting mechanism is arranged on the side wall of the control panel and is used for bearing a workpiece. The square plate drives a workpiece to move downwards and reset during machining, so that the situation that when the drill shaft drills a hole to a large depth, due to continuous contact between a drill bit on the drill shaft and the wall of the deep hole and overlarge shearing force on the side wall of the deep hole during cutting, the drill bit is broken or damaged can be reduced; the horn-shaped cylinder is opened to be matched with the square plate to drive the workpiece to move up and down, so that the continuous shearing process can be interrupted, the shearing stress is dispersed, the tipping condition is reduced, and the subsequent machining efficiency is improved.

The invention relates to the technical field of drill rod vibration reduction, in particular to a drill rod vibration reduction device based on a bent beam semi-active nonlinear energy trap. The drill rod damping device based on the semi-active NES is suitable for deep hole machining and good in damping efficiency and comprises a connecting base, a mounting plate and NES components, and each NES component comprises a U-shaped auxiliary beam, an elastic main beam, a flexible hinge and a PID controller. Each U-shaped auxiliary beam is clamped in the corresponding annular groove, one end of each elastic main beam is fixed to the middle of a middle beam of the corresponding U-shaped auxiliary beam, the other end of each elastic main beam is fixed to the middle of the other side face of the flexible frame in the width direction, each U-shaped auxiliary beam is provided with a strain gauge, and the input end of the PID controller receives the multiple strain gauges. And the output end of the PID controller controls the plurality of piezoelectric ceramic stacks. The device is obvious in vibration suppression effect and suitable for drilling machining.

The invention discloses a hand-held drill based on spiral airflow chip removal, and relates to the technical field of mechanical engineering, the hand-held drill comprises a machine body and a first assembly mounted on the machine body, the first assembly comprises a positioning frame for assisting rapid disassembly and assembly, the outer ring of the positioning frame is fixedly connected with a wedging body A, and the upper end face of the vertical line of the positioning frame is fixedly connected with a clamping body; through the arrangement of the first assembly, the clamping groove is matched with the wedging body B in a sliding clamping mode, the quick connecting groove is matched with the wedging body A in a sliding clamping mode, quick mounting of the quick connecting frame and the machine body is achieved, and the structure can be flexibly mounted or dismounted according to actual requirements when facing different drilling operation scenes and materials; after the operation is finished, the assembly can be detached from the machine body for independent and thorough cleaning, so that the influence on the next use caused by residual chippings is avoided; and meanwhile, during storage, the disassembled components and the fuselage can be separately stored, so that the storage space is saved, and mutual collision and damage among the components can be avoided.

The invention discloses a power distribution cabinet production drilling device with a collecting structure, and relates to the technical field of power distribution cabinet production, the power distribution cabinet production drilling device comprises a workbench, the bottom of the workbench is fixedly provided with a supporting frame, the through groove is formed in the top of the workbench in a penetrating mode, the bottom of the workbench is fixedly provided with a collecting cover, and a movable seat is arranged above the workbench; an electric push rod is fixedly installed at the top of the movable seat, meanwhile, the movable end of the electric push rod penetrates through the movable seat and is fixedly provided with a movable plate, guide rods are symmetrically installed on the two sides of the top of the movable plate, the two guide rods are both slidably connected with the movable seat, and the drilling assembly is arranged below the movable plate and comprises a mounting plate; according to the drilling device, when wire holes of different sizes are drilled in a plate, drill bits of different sizes can be rapidly replaced, then the wire holes can be conveniently drilled, the replacement time of the drill bits is shortened, and the production efficiency of a power distribution cabinet is improved.

The embodiment of the invention provides stop valve machining drilling equipment and a method thereof, and relates to the technical field of stop valve machining. Stop valve machining and drilling equipment comprises a drilling table and a material storage box on the side of the drilling table, movable drilling mechanisms are installed on the two sides of the upper end of the drilling table, a valve body positioning mechanism is installed on the portion, between the two movable drilling mechanisms, of the drilling table, and an auxiliary positioning assembly is installed on the other side of the drilling table. The auxiliary positioning assembly is matched with the valve body positioning mechanism and used for clamping and auxiliary fixing of the valve body, so that the two movable drilling mechanisms can synchronously conduct drilling operation on machining parts at the two ends of the valve body. The movable drilling mechanism has the adjusting functions including height adjustment and horizontal displacement, and it is ensured that a drill bit can be accurately aligned with the position needing drilling. The gear motor drives the gear transmission system to drive the drill bits on the two sides to rotate synchronously, simultaneous drilling of the two ends of the stop valve is achieved, and the machining efficiency is greatly improved.

The drilling device for the automobile parts comprises a machine cabinet and a drilling adjusting frame installed on one side of the top of the machine cabinet, a drilling machine used for drilling is installed in the drilling adjusting frame, and a fixing mechanism is installed on the top of the machine cabinet and used for clamping and fixing the automobile parts; according to the self-adaptive fixing part designed by the invention, self-adaptive clamping and fixing can be carried out on automobile parts with different shapes and sizes, and structures such as an elastic unit, a piston plate, a first reset spring and a piston rod in the elastic unit in the self-adaptive fixing part are matched with one another; the position and the force of the self-adaptive clamping head can be automatically adjusted according to the appearance of the automobile part, displacement and shaking of the part in the drilling process are effectively reduced, meanwhile, the fixing stability is further enhanced through the clamping structure of the wedge-shaped block and the wedge-shaped hole, it is guaranteed that the drilling position is accurate, the hole diameter meets the standard, and the perpendicularity and the flatness of the hole meet the requirements; and therefore, the drilling precision is obviously improved.

The invention relates to the technical field of hub machining, in particular to a new energy automobile hub machining device and method. According to the technical scheme, the drilling device comprises a machining table, a base, a mounting box, a drilling motor, a fixing motor, a drilling rod and an adjusting disc, the machining table is arranged above the base, a mounting frame is arranged at the upper end of the machining table, a ring base is arranged in the mounting box, the drilling motor is arranged in the upper portion of the ring base, and a rotating shaft is arranged at the output end of the drilling motor; the outer wall of the rotating shaft is sleeved with a multi-stage distance adjusting gear, an adjusting disc is arranged in the mounting frame, an adjusting groove is formed in the adjusting disc, a stroke rod is arranged in the adjusting groove, a bearing seat is arranged at the lower end of the stroke rod, and a drill rod is rotationally installed at the lower end of the bearing seat. The multi-stage distance adjusting gears and the multiple drill rods with the distance adjusting positions are arranged in the mounting box, multi-position drilling is conducted on the hub at the same time, and the drilling efficiency, convenience and flexibility are improved.

The invention discloses a gang drilling machine capable of drilling holes vertically in two directions, and belongs to the technical field of drilling machinery. Comprising a vertical hole gang drill capable of vertically punching a workpiece to be drilled, a workbench which is arranged corresponding to the vertical hole gang drill up and down and bears the workpiece to be drilled, and a transverse hole gang drill which is arranged corresponding to the workbench front and back and can move front and back relative to the workbench under the control of a control mechanism so as to transversely punch the workpiece to be drilled. The vertical hole gang drill and the transverse hole gang drill are respectively connected with a guide mechanism and respectively move towards the workbench under the driving of a driving mechanism; or the workbench is connected with the guide mechanism and driven by the driving mechanism to move up and down towards the vertical hole gang drill, relative movement of the workbench and the transverse hole gang drill is achieved through the guide mechanism connected with the transverse hole gang drill and the driving mechanism, and the transverse hole gang drill, the guide mechanism of the transverse hole gang drill and the driving mechanism of the transverse hole gang drill integrally move up and down along with the workbench. According to the drilling machine, hundreds of vertical drilling and transverse drilling can be conducted on the to-be-drilled workpiece in rows at the same time, the drilling efficiency is improved, and the drilling machine is more economical and energy-saving.

The invention relates to the technical field of mechanical part machining, in particular to a machining device for mechanical part production. Comprising a base, two sets of triangular vertical plates are fixedly connected to the base, a top plate is fixedly connected to the top ends of the two sets of triangular vertical plates, and an electric sliding table is installed on the top plate; a motor drives a driving belt wheel to rotate in the forward direction, so that a driven belt wheel drives a threaded rod to rotate in the forward direction, a drill bit rotates to drill holes and moves downwards at the same time, at the moment, a linkage rod drives a second limiting block to move downwards to extrude a spring, and the descending distance of the drill bit is monitored according to the pressure value change condition of a pressure sensor; when the drilling depth reaches a preset value, the motor is automatically controlled to rotate reversely, the drill bit ascends and resets while rotating reversely, and therefore the drilling depth reaches the preset value, the drilling depth can be monitored and adjusted without manual operation, the machining efficiency and the drilling precision are effectively improved, and meanwhile the workload of workers is relieved.

The utility model discloses a machining drilling device convenient to clean, which belongs to the technical field of machining, and comprises a base, a drilling table is mounted above the base, a fixed table is connected above the base, a collecting box is slidably mounted in the fixed table, one side of the fixed table is connected with a mounting frame, and the other side of the fixed table is connected with a hydraulic cylinder. A baffle is slidably mounted on the fixing table through a mounting frame, and a clamp base is connected to the upper portion of the fixing table. According to the machining drilling device convenient to clean, a threaded rod is rotated through a motor, a movable block moves along the threaded rod through thread fit of a threaded sleeve and the threaded rod, and therefore a brush below a connecting plate can sweep chippings scattered on a clamp base, the chippings fall into a collecting box from a chipping falling opening, meanwhile, a scraping plate moves together, and the chippings fall into the collecting box; and metal chippings falling into the strip-shaped groove of the clamp seat are swept out, so that a worker can conveniently clean the clamp seat, and the chippings are prevented from affecting installation of the clamp.

The invention discloses a gear ring fixing device for gear ring inner hole machining, and belongs to the technical field of gear ring machining equipment.The gear ring fixing device for gear ring inner hole machining comprises a base, a lower chuck, an upper chuck and a drilling assembly, the lower chuck is rotationally connected to the base, the upper chuck is arranged above the lower chuck, and the drilling assembly is arranged on the base. A gear ring to be machined is arranged on the lower chuck, and the drilling assembly is arranged on one side of the base. According to the gear ring machining device, the gear ring to be machined can be clamped and fixed in the inner and outer directions, the gear ring is effectively prevented from deforming when fixed, the end face of the gear ring can be fixed through the limiting assembly, the gear ring is effectively prevented from vibrating in the machining process, the gear ring drilling precision and effect are effectively prevented from being affected, and the gear ring machining quality is improved.

The utility model discloses a punching device for power distribution cabinet production, including a base plate, a workbench, a bracket and an operation panel, wherein the workbench is fixedly connected to the top of the base plate, the bracket is fixedly connected to the front and rear sides of the base plate, the operation panel is fixedly connected to the left side of the bottom front of the bracket, the left and right sides of the top of the workbench are fixedly connected to electric cylinders, and the output end of the electric cylinder is fixedly connected to a clamping block. The utility model sets an electric cylinder, and the user places the power distribution cabinet that needs to be drilled on the workbench, starts the electric cylinder through the operation panel to clamp the power distribution cabinet inward, and then moves the drilling mechanism to the position where the drilling is required to work through the moving assembly, thereby solving the problem that the existing power distribution cabinet drilling is usually carried out using tools such as hand drills, there are differences in the positions of hand-held drilling, and metal chips splashing during hand-held drilling can cause harm to the user.

The clamping device comprises a working table, supports are fixedly connected to the periphery of the bottom end of the working table, a positioning seat is fixedly installed in the center of the upper surface of the working table, a supporting mechanism is arranged on the upper surface of the positioning seat, and the supporting mechanism is arranged on the upper surface of the working table. Positioning blocks are fixedly installed on the periphery of the upper surface of the workbench, sliding rods are fixedly installed on the inner side walls of the positioning blocks, and clamping plates are arranged on the two sides of the positioning base. The mounting holes in the center of the wind power flange are formed in the outer walls of the multiple sets of top plates, the electric push rod is started to drive the top plates to stretch out and draw back, supporting is conducted according to the diameter of the mounting holes in the center of the wind power flange, meanwhile, the driving motor is started to drive the coupler to rotate, and the coupler drives the wind power flange to rotate when rotating; the position angle of drilling is adjusted, the position angle of the wind power flange in the clamping process can be conveniently adjusted in the drilling process, manual overturning operation is not needed, time and labor are saved, and the drilling efficiency is improved.

A suspension-type drilling device, comprising a suspension system (2), a control system (1) and a drilling mechanism (3). A bow-shaped arm (207) in the suspension system (2) is connected to a balancing lead screw (306) in the drilling mechanism (3) by means of a horizontal adjusting sliding block (208). The control system (1) is connected to a driving motor of the drilling mechanism (3) by means of a cable (102). For vehicle structures of special vehicles of different models and the positions and sizes of grouped holes around an axle hole, a fixed drilling device is designed to be of a suspension type, a fixed drilling size is designed to be adjustable, and process automation is achieved for manual clamping and manual drill bit rod replacement; in this way, the machining of grouped holes around axle holes of various vehicle types is met, and the universality and the low cost of the device are realized, thereby reducing the labor intensity of personnel and improving the production efficiency.

The invention relates to the technical field of brake disc production, in particular to a brake disc positioning and drilling device which comprises a base, a supporting side plate is fixedly connected to the surface of the base, a top plate is fixedly connected to the surface of the supporting side plate, and a first motor is fixedly connected to the surface of the top plate; an output shaft of the first motor is fixedly connected with a first lead screw, and the surface of the first lead screw is in threaded connection with a first square nut. According to the positioning and drilling device, the positioning mechanism, the clamping mechanism and the upper rotating mechanism are matched with one another, so that the positioning and drilling device can directly drill brake disc bodies of different sizes, the situation that different brake disc supporting structures need to be replaced, and then the drilling task is conducted is avoided, and the trouble of replacing brake disc supports is avoided; and meanwhile, the phenomenon that the supporting structure deviates in the replacement process is avoided, and the drilling efficiency and the drilling quality of different brake discs on the positioning and drilling device are guaranteed.

The drilling device comprises a machine tool and a drilling unit, the drilling unit is arranged in the machine tool to conduct drilling machining on a machine head body of the sewing machine, and the drilling unit comprises a first air cylinder, a fixing box, a drill bit, a bearing and a dismounting and mounting assembly; a first air cylinder is fixedly installed on the upper side wall body of the machine tool, an output shaft at the lower end of the first air cylinder is fixedly connected with a fixing box, a bearing is arranged on the front side of the fixing box, and one end of the drill bit penetrates through the bearing to be installed in the fixing box. The dismounting and mounting assembly comprises a fixing mechanism for mounting the sewing machine head body and a replacing mechanism for replacing the sewing machine head body; by means of the automatic drill bit replacing device, time is greatly saved, production efficiency is improved, production stagnation caused by manual drill bit replacing after shutdown is greatly reduced, and a powerful guarantee is provided for large-scale sewing machine head production.

The invention relates to the technical field of numerical control machining, in particular to a five-axis drilling numerical control machine tool based on visual positioning and a machining method, and the five-axis drilling numerical control machine tool comprises a machine tool body, a numerical control system, a contact type measuring head, a visual system and a calculation control unit. Coordinates of at least three non-collinear reference features on a workpiece in a machine tool coordinate system are automatically collected through a contact type measuring head, the deviation between the workpiece coordinate system and the machine tool coordinate system is automatically calculated through a coordinate system transformation algorithm, and after the workpiece coordinate system is established, a visual system is moved to the position above each programming hole site to shoot actual marks, and the workpiece coordinate system is calculated. According to the method, actual hole center coordinates are extracted through image recognition and compared with theoretical coordinates, and finally, deviation calculation and machining decision are carried out by integrating measuring head data, visual images, numerical control programs and tolerance parameters, so that through the automatic process integrating measurement, recognition, comparison and decision making, the machining precision is improved, and the machining precision is improved. The technical problems of manual errors and lack of verification before processing are effectively solved.

A power tool includes a first housing, a dust box coupled to the first housing and defining an inlet and an outlet, a filter positioned between the inlet and the outlet, and a first motor operating a fan to generate an airflow across the filter between the inlet and the outlet. The power tool also includes a first sensor to sense an airflow characteristic of the airflow and a second sensor to sense an operating parameter of the power tool. A first controller is in communication with the first sensor to monitor the airflow characteristic of the airflow and the second sensor to monitor the operating parameter. The first controller controls operation of the power tool based on a value of the airflow characteristic and the operating parameter.

The utility model provides a wheel hub two-sequence processing equipment, which belongs to the technical field of wheel hub production equipment, including a bed, a workpiece box, a turret processing mechanism, and a drilling mechanism. The turret processing mechanism can be used to perform traditional two-sequence processing operations. After the processing is completed, the drilling mechanism is further used to perform hole processing, and part of the hole positions of the three-sequence processing in the traditional process are directly completed in the two-sequence processing. Therefore, the utility model proposes a processing equipment different from the traditional two-sequence structure design, which can perform part of the three-sequence processing operations. In the production process, it helps to shorten the three-sequence processing cycle, thereby adjusting the overall processing rhythm of the wheel hub and improving production efficiency.

The invention relates to the technical field of automation, and discloses an automatic manufacturing unit for automatic combined machining of drill bits, which comprises a workpiece distributing and positioning device and a truss robot, the truss robot comprises a truss erected between the workpiece distributing and positioning device and the machine tool and a three-axis moving gripper device arranged on the truss. The gripper device comprises a first gripper assembly and a second gripper assembly, wherein the positions of the first gripper assembly and the second gripper assembly can be switched, and the first gripper assembly and the second gripper assembly are used for clamping workpieces. The workpiece distributing and positioning device comprises a first stock bin used for storing workpieces, a distributing mechanism connected with the first stock bin and a workpiece direction adjusting mechanism arranged at the discharging end of the distributing mechanism. The device has the beneficial effects that the workpiece machining efficiency is improved, and the labor cost is reduced.

The utility model relates to the technical field of numerical control machining, in particular to numerical control machining equipment based on a rotary main shaft, which comprises a base, a Y-axis module, a workbench, a portal frame, an X-axis module, a Z-axis module, a machining upright post, a connecting module and a machining module, the Y-axis module is arranged on the base, the workbench is arranged on the Y-axis module, the portal frame is arranged on the two sides of the base, the X-axis module is arranged at the top end of the portal frame, the Z-axis module is arranged on the X-axis module, the machining stand column is arranged on the Z-axis module, and the connecting module is arranged on the machining stand column and used for connecting the machining module with the machining stand column. The machining module comprises a machining support, a rotating support, a rotating driving module, a machining electric cylinder and a machining main shaft. The machining main shaft can move and rotate in multiple directions, and the arrangement cavity of the machining support and the rotating arrangement of the rotating support provide choices of various machining angles and directions for the machining main shaft.

The invention relates to the technical field of refrigerator side plate punching, in particular to vehicle-mounted refrigerator side plate punching equipment which comprises a drilling platform, a drilling machine body and a drill bit seat, a mounting frame is arranged on the drilling platform, moving plates are arranged on the two sides of the mounting frame in a sliding mode, and a plurality of soft clamping blocks and hard clamping blocks are mounted on the moving plates; a plurality of switching blocks are installed on the movable plate, each switching block is provided with a hard contact face and an elastic contact face, and according to the vehicle-mounted refrigerator side plate punching equipment, clamping and supporting strategies can be dynamically adjusted according to the physical characteristics of metal or non-metal plates; high clamping force is applied through the hard contact face of the hard clamping block and the switching block, the machining stability is ensured in cooperation with the rigid supporting unit, and displacement caused by drilling vibration is avoided. And for easily-deformed or brittle non-metal plates, the soft clamping blocks and the elastic contact surfaces are switched, and the elastic supporting units are combined to uniformly disperse pressure, so that surface indentation or internal cracks are prevented.

The utility model relates to the technical field of punching and positioning equipment, and discloses punching and positioning equipment for building decoration engineering, which comprises a workbench, a positioning mechanism is arranged inside the workbench, an auxiliary mechanism is arranged outside the workbench, a first graduated scale is fixedly connected to the left side of the workbench, and a second graduated scale is fixedly connected to the right side of the workbench. A second graduated scale is fixedly connected to the front face of the workbench, supporting legs are fixedly connected to the top of the workbench, the positioning mechanism comprises an adjusting assembly and a conveying assembly, the adjusting assembly is arranged in the workbench, and the conveying assembly is arranged at the top of the adjusting assembly. A first motor is arranged to drive a driving wheel to rotate, the driving wheel rotates to convey a plate to move, a spring pushes a positioning wheel to press the surface of the plate all the time, the plate exceeding the adjusting range can be moved into the adjusting range, the position of the plate does not need to be manually adjusted, and it can be guaranteed that the plate moves stably, and the punching position is accurate.

The invention discloses a high-precision coaxial hole boring method for turning a part by 180 degrees, and belongs to the technical field of machine manufacturing. The machining method comprises the main machining steps that finish machining is conducted on a clamping datum H, a clamping datum A, a 180-degree turning datum F, a 180-degree turning datum G and a positioning auxiliary datum B; the part is installed on the tool capable of turning by 180 degrees; a combined part of the part and the datum tool capable of being turned by 180 degrees is installed on a workbench of the precision boring machine; a D hole alignment tool is arranged, a dial indicator is used for straightening and turning by 180 degrees, the reference F is within 0.002 mm, and auxiliary reference J holes of the E hole, the C hole and the D hole are precisely bored; and after the assembly is taken down and turned by 180 degrees, positioning and clamping are conducted again with the 180-degree reference F, the assembly is installed on the precise boring machine workbench, the D hole alignment tool is dismantled, and a D hole is bored. According to the invention, precise boring of high-precision coaxial holes can be realized.

The invention provides a deep hole drilling numerical control correction method and system based on force sense feedback, and relates to the technical field of machining numerical control, and the method comprises the steps: monitoring the vibration amplitude and frequency spectrum features of the surface of a drill rod, comparing the vibration amplitude and frequency spectrum features with a cutting vibration feature library, and extracting a chip attachment signal strength index; fusing the index with a resultant force time domain signal to generate a data pair, and separating an additional load time domain sequence from a pure cutting force time domain sequence by using an interference stripping algorithm; if the additional load time domain sequence exceeds the threshold value, a cleaning signal is issued, and cuttings are discharged; comparing the pure cutting force time domain sequence with a corresponding reference, calculating a force deviation, and generating a compensation instruction according to a feed compensation strategy; the instruction is executed, machining continues, the hole diameter and guiding deviation are fed back, the correction effect is verified, and parameters are adjusted till the machining precision is met, so that chip accumulation can be accurately recognized, cleaning is triggered, the real cutting force and the additional interference load are effectively separated, the feeding parameters are dynamically compensated, and the deep hole machining precision and stability are remarkably improved.

The invention discloses a motor shaft hole depth machining device which comprises a machine table, a lifting frame and a bearing plate, a frame is vertically installed on the top of the machine table, a driving assembly is arranged in the lifting frame, an L-shaped frame is vertically installed on the top of the machine table, a side wall punching assembly is arranged on the bearing plate, a plurality of polygonal bodies are arranged above the machine table, and a plurality of side wall punching assemblies are arranged on the polygonal bodies. Circular holes are formed in the top of the machine table, clamping assemblies are arranged in the circular holes, a first mounting plate and a second mounting plate are vertically mounted at the top of the machine table, a fixing assembly is arranged on the second mounting plate, and a positioning assembly is arranged at the top of the machine table. A fifth electric push rod drives a rack to move up and down, the rack drives a gear to rotate in the up-and-down movement process, then a workpiece is overturned, the two ends of the workpiece can be punched through one-time fixing, overturning is directly conducted, it is guaranteed that punching of the upper end and the lower end of the workpiece is on the same straight line, and the production efficiency is improved.