46results about How to "Avoid machining errors" patented technology

The application discloses a groove cutter for machining a turbocharger shell annular groove and a turbocharger shell, the groove cutter comprising a first cutter body, a second cutter body and a cutting edge. The stable clamping of the first cutter body lays a foundation for machining precision, avoiding machining errors caused by clamping deviation; the design of the chip removal angle A and the support angle B of the second cutter body not only solves the problem of chip removal, but also enhances the strength of the groove cutter, reduces cutting heat and groove cutter deformation; the cutting edge comprises a straight edge section and a semicircular edge, which controls the cutting contact area, reduces the cutting force and vibration, and protects the edge. The joint action of these designs not only makes the machining precision of the annular groove meet the assembly and use requirements of the shell, but also improves the service life of the groove cutter, reduces the number and time of tool replacement, reduces the machining cost, improves the overall machining efficiency, and fully meets the batch production requirements of the new energy automobile turbocharger shell.

This utility model relates to a detachable structure for a folding mop head, comprising a central plate; two folding plates hinged to opposite sides of the central plate, each folding plate having a snap-fit ​​groove on its bottom surface, the snap-fit ​​groove having a first insertion interface; and two back plates fixed to the top surface of the foamed mop head at intervals, each back plate having a snap-fit ​​that can be inserted into the first insertion interface and cooperate with the snap-fit ​​groove; the inlet diameter of the snap-fit ​​groove is larger than the inner diameter of the snap-fit ​​groove. The larger inlet diameter of the snap-fit ​​groove facilitates assembly of the snap-fit ​​and the slot overcoming machining errors.

The utility model relates to the field of artificial board processing technology, concretely is artificial board processing equipment for forestry engineering, including processing platform, be provided with drive assembly on the processing platform, be provided with the clamping assembly for fixing board to the processing platform, the both ends of processing platform still are provided with the chip collection subassembly for collecting the processing chip. The device drives the driving disc to rotate with servo motor, and then makes two synchronous connecting rods drive synchronous board to move, makes multiple clamping rods can be accurate with the side edge of board abut, fixes the board fast and stably, effectively avoids the processing error caused because board shakes, improves the processing accuracy, guarantees the quality of artificial board, and through the flexible adjustment of front and back, left and right, up and down three directions, can accurately position processing assembly to any processing position of board, satisfies different processing demand, greatly improves the applicability and processing flexibility of equipment.

This utility model discloses a cutting device for producing motor shafts, relating to the field of motor shaft processing technology. The utility model includes a worktable, a cutting assembly and a rotating assembly mounted on the worktable. The cutting assembly includes a transmission frame rotatably mounted above the worktable via a bearing seat, a drive motor mounted at the tail of the transmission frame, a cutting tool mounted at the front of the transmission frame, and a cylinder for adjusting the rotation of the transmission frame relative to the bearing seat. The rotating assembly includes a transmission seat fixed to the edge of the worktable, a clamp fixed to the front of the transmission seat, a transmission belt for driving the rotation of the transmission seat, and a rotary motor. The motor shaft passes through the clamp and the transmission seat, and the clamping jaws of the clamp hold and fix the motor shaft to its circumference. This utility model, through the coordinated operation of the cutting assembly and the rotating assembly, achieves automatic rotation and precise cutting of the motor shaft, facilitating uniform and continuous cutting operations by the cutting tool.

The utility model relates to the technical field of numerical control machine tool workpiece feeding and discharging, and discloses a numerical control machine tool workpiece feeding and discharging device which comprises a supporting frame, a lifting motor, a bearing device and a pushing device. A bearing device is arranged in the supporting frame and correspondingly connected with the interior of the supporting frame in a sliding fit mode, a pushing device is arranged at the top of the bearing device and fixedly connected with the top of the bearing device through an adaptive screw, and a bottom output shaft of the lifting motor is correspondingly connected with the bearing device in a threaded fit mode. The loading and unloading device is internally provided with the bearing device and the pushing device which cooperate with each other, so that the loading and unloading speed of large workpieces can be greatly improved, manual carrying is reduced, and the safety of the whole operation process is greatly improved.

The utility model discloses a four-axis machine of a machining center, and relates to the technical field of four-axis machines. The machining center four-axis machine comprises a machining center, a fixing assembly and a replacing assembly, a bridge plate is arranged on the machining center, the fixing assembly is arranged on the bridge plate, the replacing assembly is arranged on the bridge plate, the replacing assembly comprises a fixing frame, sliding blocks, springs and clamping rods, and the two sets of sliding blocks are installed in the fixing frame in a sliding mode and are symmetrically distributed; a spring is fixedly installed on one side of the sliding block, a clamping rod is fixedly installed on the other side of the sliding block, and the other end of the clamping rod penetrates through the fixing frame and extends into the connecting plate. Through the arrangement of the replacement assembly, workpieces of different shapes and sizes possibly need different clamping modes and force distribution, the most suitable clamping mode can be selected according to the specific requirement of each workpiece by replacing the clamping fixing plate, and the flexibility can ensure that each workpiece can be stably and reliably clamped; and machining errors or workpiece damage caused by improper clamping are avoided.

The application discloses a numerical control gantry milling machine and belongs to the technical field of machine tools, which comprises a bearing plate, a linear module fixedly installed on the upper surface of the bearing plate, a bearing plate fixedly installed on the upper surface of a moving block of the linear module, gantry frames fixedly installed at both ends of the upper surface of the bearing plate, a liquid collecting and spraying mechanism fixedly installed between the upper halves of the two sets of gantry frames, and a cooling mechanism fixedly installed between the lower halves of the two sets of gantry frames and connected with the liquid outlet end of the liquid collecting and spraying mechanism. The application realizes a high-efficiency cooling liquid closed-loop circulation system through the design of the cooling mechanism and the liquid collecting and spraying mechanism, reduces the material cost and environmental protection pressure, guarantees the stable cooling effect, and realizes the accurate cooling of the cutting area through the ball tube rotation adjustment and the double-path nozzle design.

The utility model relates to a headlamp processing jig, which belongs to the technical field of headlamp processing and comprises a base and a top frame fixedly connected to the top of the base, the top of the base is provided with a jig assembly for headlamp processing, and the jig assembly comprises a jig shell fixedly connected to the top of the base. A bearing plate is fixedly connected between the left side wall and the right side wall in the jig shell, three sets of elastic supporting pieces and three sets of contact sensors are fixedly connected to the inner bottom wall of the jig shell, a connecting plate is fixedly connected to the top ends of the elastic supporting pieces, and a positioning head is fixedly connected to the top of the connecting plate. The bottom of the connecting plate is fixedly connected with a connecting shaft, and the bottom end of the connecting shaft is fixedly connected with a contact plate. According to the headlamp processing jig, when all the contact sensors are triggered, the indicating lamp is lightened to indicate that the placement position of the headlamp is correct, and if part of the contact sensors are not triggered, the indicating lamp is not lightened, so that an operator can be timely reminded of deviation of the placement position of the headlamp.

The utility model relates to a kind of laundry dryer tripod finished product packaging production line, including parallel belt conveying line, outlet positioning frame and protective sleeve installation device from front to back in turn, the outlet positioning frame is arranged in the horizontal outlet of parallel belt conveying line, the outlet positioning frame is equipped with the feeding and discharging robot of clamping tripod between protective sleeve installation device. The utility model realizes the consistent of each tripod foot position by the outlet positioning frame set in the outlet of parallel belt conveying line, ensures the fixed position of feeding and discharging robot clamping, avoids the inconsistent of subsequent protective sleeve installation device clamping tripod foot position to produce processing error, realizes the automatic sleeve of tripod shaft with protective sleeve, save time and labour, release labour, greatly improve the installation efficiency of protective sleeve, adapt to tripod automation production.

The utility model provides a kind of machining piece displacement monitoring device, the displacement monitoring device includes control device, first alarm device, displacement detection device, power supply battery and second alarm device.Control device includes control box and controller, and controller is set in control box.First alarm device is set on control box, and first alarm device is electrically connected controller.Displacement detection device is set to the side of machining piece, and displacement detection device is electrically connected controller, and power supply battery is electrically connected controller.Second alarm device is wirelessly connected control device, and it is located the control panel side of machine tool.The displacement monitoring device overcomes the hysteresis of traditional measurement method, ensures that any small displacement change in processing can be captured in time.Double alarm mechanism not only improves the reliability of alarm, effectively avoids the safety accident caused by alarm signal not being perceived in time.

This invention discloses a method and system for stripping the semiconductive layer of a high-voltage cable, belonging to the field of high-voltage cable stripping. The method includes: obtaining reference parameters for the electrical characteristic difference between the semiconductive layer and the main insulation layer of the target high-voltage cable, and setting interface determination conditions; controlling the stripping tool to feed radially along the cable, and acquiring real-time AC impedance information at the contact position between the stripping tool and the cable stripping surface during the stripping process; comparing the real-time AC impedance information with the interface determination conditions, and determining the interface position between the stripping tool and the main insulation layer when the interface determination conditions are met; after reaching the interface position, generating a feedback signal based on the real-time AC impedance modulus and its rate of change, and adjusting the feed depth and / or feed speed of the stripping tool to make the stripping tool follow the interface position until stripping is completed. This invention improves the accuracy and consistency of semiconductive layer stripping.

The utility model discloses an automatic production line for connecting rod production belongs to connecting rod rough grinding technical field, and the side of fixed base is equipped with production line support, and the upper end both sides of this production line support are equipped with ball screw drive assembly, and the lateral wall of production line support is equipped with second drive assembly, and second drive assembly is connected with ball screw drive assembly through transmission belt, and the movable seat of two ball screw drive assemblies is equipped with sliding support, and the inner wall of sliding support is equipped with slide rail. The connecting rod positioning and clamping mechanism realizes accurate positioning and firm clamping of the connecting rod to be processed with the help of T type sliding slot, T type key and abutting assembly, improves the machining stability and precision, avoids the machining error, and the abutting block can be replaced to adapt to different size connecting rods. The connecting rod polishing mechanism realizes accurate polishing to the connecting rod through servo motor, transmission gear box and grinding head cooperation. Because the connecting rod has been accurately positioned and clamped, the grinding head can be in constant contact with the connecting rod surface when rotating and polishing, and ensures that polishing is uniform and consistent.

This invention provides a mass production machining device for door pillars, belonging to the field of door pillar mass production machining technology. It includes a base, with mounting brackets mounted on the top of the base. The mounting brackets have equidistant first limiting grooves and equidistant mounting grooves on their tops. Four mounting brackets are equidistantly arranged on the base, and one mounting bracket located on one side edge of the base has equidistant first limiting blocks on its top. This invention, by setting up an auxiliary positioning mechanism and a limiting and fixing mechanism, allows the eight first sliding grooves to be quickly positioned to the machining position on the top of the base in one go, avoiding multiple alignment adjustments and improving positioning efficiency. Furthermore, the limiting and fixing mechanism further limits and fixes the transported profile body, ensuring that the profile body remains stable, does not shift, and does not shake during processing, ensuring consistent processing benchmarks.

The utility model relates to the technical field of sheet metal part stretching, and discloses a sheet metal part stretching die which comprises a base, a die body is arranged at the top of the base, a fixing assembly is arranged at the bottom of the die body, a taking assembly is arranged in the die body, and the fixing assembly comprises a mounting frame fixedly connected to the top of the base. A hydraulic rod is arranged in the mounting frame, clamping arms are rotatably connected to the two ends of the hydraulic rod correspondingly, connecting rods are rotatably connected to the middles of the clamping arms, limiting sleeves are rotatably connected to one ends of the connecting rods, limiting rods are slidably connected into the limiting sleeves, and supporting rods are fixedly connected to the left side wall and the right side wall of the mounting frame correspondingly. And clamping blocks are rotationally connected to the tops of the clamping arms. According to the utility model, through the structural arrangement of the fixing assembly, the problems that in the prior art, when a mold is replaced, a large number of bolts need to be disassembled and replaced, time and labor are wasted, and high-efficiency production is not facilitated are solved.

This utility model discloses a production and processing equipment for diamond mesh security screens, belonging to the field of screen processing technology. It includes a workbench with mounting grooves on both sides of its upper surface. Each mounting groove is rotatably connected to a threaded screw via bearings. Each threaded screw has a mounting seat threaded onto its surface. A clamping plate is fixedly connected to the upper end of each mounting seat. Each clamping plate has sliding grooves at both ends, and sliding rods are movably connected inside the sliding grooves. This utility model, by setting up clamping plates, ensures the window frame's stable position and precise positioning during processing, improving the equipment's versatility and practicality. By setting up positioning components, the device can flexibly meet the positioning needs of different corners of the security screen, achieving effective positioning of each corner of the security screen, ensuring the security screen remains stable during processing, and improving the overall quality and aesthetics of the product.

This utility model discloses a grinding device for taper shank gear shapers, including a worktable. The bottom of the worktable is equipped with a collection mechanism for collecting and processing waste chips generated during the grinding of the taper shank gear shaper. The collection mechanism includes an L-shaped bracket fixed to one end of the bottom of the worktable. A collection box is fixed to the top of the inner wall of the L-shaped bracket. An exhaust fan is installed at the top of one end of the collection box. The exhaust fan's outlet is connected to a connecting pipe, and the other end of the connecting pipe communicates with the bottom of the collection box. The exhaust fan's inlet is connected to a connecting pipe, and the other end of the connecting pipe is connected to a connecting dust collection hood. The dust collection hood is installed on the top of the worktable, located at the bottom of the mounting frame. This utility model effectively processes the waste chips and residue generated during the grinding of taper shank gear shapers, saving manual cleaning time, improving the processing efficiency of taper shank gear shapers, and avoiding processing errors caused by waste chip interference.

The utility model relates to the field of bamboo and wood processing discloses a kind of bamboo and wood particle abrasive overall one-time forming machine, including working frame, the center of the working frame is fixedly connected with guide frame, the surface of one side of the working frame is fixedly connected with fixed box, the surface of another side of the working frame is fixedly connected with blanking bin, the outside lateral wall of the blanking bin is fixedly connected with support, the inside lateral wall of the support is fixedly connected with motor, the outside lateral wall of the fixed box is provided with abrasive assembly, the rotating center shaft of pulley a is fixedly connected with rotating disc, the surface of the rotating disc is hinged with hinged rod a.In the utility model, the cooperation of rotating disc and cam makes pusher plate and vibrating rod synchronous action, and the reciprocating push of pusher plate makes bamboo and wood keep neat arrangement before entering abrasive area, lays foundation for accurate processing, and the periodic knocking of vibrating rod further optimizes material distribution, avoids processing error caused by accumulation.

This utility model relates to the field of PCBA board processing technology and discloses a positioning and calibration fixture for PCBA board processing, including a placement stage. A right-angle support frame is fixedly connected to the upper surface of the placement stage. This utility model drives a bidirectional lead screw to rotate via a drive motor, which in turn drives the threaded sleeve to move linearly towards the center along the limiting rod, realizing the synchronous clamping action of the clamping plate. By using a lever to pull the locking rod, it is disengaged from the mounting block. The mounting block can be removed by overcoming the magnetic attraction of the magnet. The operation is simple and quick, greatly shortening the time for changing the clamping plate and avoiding the time-consuming and laborious disassembly and assembly problems of the traditional bolt fixing method. In addition, the dual fixing method of the negative pressure suction cup and the clamping plate ensures that the PCBA board is firmly clamped and calibrated in the center of the placement stage. This not only effectively prevents processing errors caused by board offset and improves processing quality, but also avoids the problem of unstable clamping when dealing with boards with irregular shapes on both sides by the traditional single mechanical clamping method.

The utility model discloses a machine tool brake device and a turning and milling all-in-one machine, the machine tool brake device comprises a machine base, the machine base is provided with a main shaft and a driving assembly driving the main shaft to rotate, and the side wall of the machine base is provided with a containing groove; the brake disc is fixedly connected to one end of the main shaft and is arranged in the accommodating groove; the braking assembly is connected to the machine base and arranged in the containing groove, the braking assembly comprises an installation support and a driving air cylinder, the installation support is adjustably installed on the groove wall of the containing groove, the driving air cylinder is installed on the installation support, and a driving shaft of the driving air cylinder can move in the thickness direction of the brake disc so as to abut against the brake disc and brake the main shaft. The driving air cylinder is arranged in the containing groove, the overall structure is compact, and the occupied space is small; the adjustability of the mounting bracket enables the position of the driving cylinder to adjust the braking effect as required to adapt to different brake disc specifications, and the universality is high; in addition, the pneumatic driving mode does not need an external power supply, effective braking can still be achieved when the power supply is lost, and the reliability of the device is improved.

This utility model discloses a hydraulic clamping fixture for rapid clamping and positioning, specifically relating to the field of stamping equipment technology. It includes a base plate with two sliding grooves, each containing a sliding block slidably connected to it. A chuck is fixed to the top of each sliding block. A pushing mechanism is located on the right side of the base plate, used to push the sliding blocks along the grooves. A fixing plate is fixed to the top of the base plate, with a sliding rod slidably connected through it. The sliding rod is connected to the sliding block on the front side, and a threaded groove is formed on its outer side. A knob is connected to the outer side of the sliding rod via the threaded groove. A straight groove is formed on the top of the sliding rod, with graduation lines inside. A first pressure-sensitive switch is installed on the right side of the fixing plate, and a positioning mechanism is located on the right side of the base plate. This utility model, by using a sliding rod in conjunction with the first pressure-sensitive switch, allows the cylinder to move the chuck to a preset distance, after which the knob precisely triggers the first pressure-sensitive switch, thereby controlling the cylinder to stop in real time via a controller.

This utility model discloses a feeding device for male and female drill pipe joints, comprising: a rotating platform, the main body of which is configured as a bearing turntable, a mounting base fixedly installed at the top of the bearing turntable, end limiting plates fixedly installed at both ends inside the mounting base, two mounting shafts symmetrically installed at the top between the two end limiting plates, and a bearing roller fixedly sleeved on the outer wall of the mounting shaft; and a lifting assembly for lifting the male and female drill pipe joints. This utility model uses a controller to uniformly control components such as the rotating motor, drive motor, telescopic cylinder, lifting cylinder, and lifting cylinder, realizing full automation of the material storage, separation, feeding, processing, and unloading process, reducing manual intervention, lowering the difficulty of manual operation, and improving production efficiency; the feeding and storage platform is set with a five-degree inclination angle and a chamfered slope, combined with a retractable feeding slide in the slide structure, so that the workpiece rolls down to the bearing roller at low speed, reducing impact.

The invention discloses an ultralow backscattering extinction device for weak light detection. The center of the end face of one end of the outer shell is provided with a circular inlet used for receiving emergent light beams from a telescope. An inlet shading short cylinder with a visual angle is arranged on the inner side of the circular inlet; more than two groups of light blocking ring assemblies are arranged on the side wall of the cylindrical inner cavity in the closed inner cavity of the outer shell along the optical axis direction; a bottom center cone is arranged in the center of the bottom of an inner cavity of the outer shell, and a conical surface microstructure is arranged on the surface of the bottom center cone; a conical tip trap hole is formed in the conical tip of the bottom center cone in the optical axis direction. The bottom of the conical tip trap hole is provided with a hole bottom inclined absorption surface which is inclined relative to the optical axis and used for enabling light in the hole bottom mirror reflection direction to deviate from the inlet optical axis. The objective of the invention is to solve the problem of measurement of backward stray light generated in the process that an exit pupil of a telescope on a space gravitational wave optical platform emits opposite light.

This utility model relates to the field of automotive door frame manufacturing technology, and more particularly to an automotive door frame edging device, including a support frame, a mold top for fixing the door frame to be edged, and a rear side for fixing the support frame; a pressure arm with its lower end rotatably mounted on the bottom of the support frame via an eccentric shaft, and its upper end extending into the inner window area of ​​the door frame to be edged, and hinged to the front end of a hinge mechanism, with a pressure knife fixed to the front side of the upper end of the pressure arm; a cylinder hinged to the rear side of the support frame, with its output end hinged to the rear end of the hinge mechanism, the cylinder driving the hinge mechanism to move the pressure arm forward, so that the pressure knife performs a horizontal bending action; a motor fixed to the bottom of the support frame, used to drive the eccentric shaft to move the pressure arm downward, so that the pressure knife performs a vertical compaction action. This utility model provides an automotive door frame edging device, whose pressure knife part can extend into the window of the door frame for edging operations, solving the problem that existing edging devices cannot effectively bend the upper edge of the outer door panel from the inner side of the door frame window.

The novel three-jaw chuck comprises a chuck body, a jaw driving mechanism and a plurality of jaws, the jaw driving mechanism and the jaws are arranged in the chuck body, the chuck body is provided with a plurality of through grooves, the jaws are located in the through grooves, the top end of one side of each jaw is in an L shape, and the top end of the other side of each jaw is in an L shape. The multiple clamping jaws are arranged outwards along the circle center of the chuck body, and the L-shaped sides of the multiple clamping jaws are opposite. The clamping jaw is arranged to be L-shaped, so that the clamping jaw is tightly attached to the hexagonal head of the hexagonal bolt, and the stability of a workpiece in the machining process is guaranteed.

The present application relates to the field of metal combination processing, and discloses a cast iron casting drilling and polishing integrated combination processing device and method, which comprises a drilling machine and a polishing machine; the drilling machine and the polishing machine sequentially perform drilling and polishing work on the parts to form part holes; the drilling machine comprises a drill bit and a drilling driving part, and the polishing machine comprises a polishing rod and a polishing driving part; the polishing rod is located at an eccentric position of the part hole, the outer wall of the polishing rod is in contact with the inner wall of the part hole, and the rotation shaft of the polishing driving part is coaxial with the part hole to be polished, so that the polishing driving part drives the polishing rod to rotate axially along the part hole to be polished. The present application integrates the drilling and polishing processes on the same platform, completes the processing and inner wall polishing of the part hole through the continuous operation of the drilling machine and the polishing machine, reduces the part transfer link, shortens the production cycle, reduces the labor intervention cost, and significantly improves the batch processing efficiency of the parts.

The utility model relates to the technical field of positioning and clamping, in particular to a clamping and positioning device of a machining center, which comprises a working table, a clamping and positioning component is arranged on the working table, a clamping seat height adjusting component is arranged on the clamping and positioning component, and a scrap collecting component is arranged at the bottom of the working table. The clamping seat height adjusting assembly is arranged, the second motor drives the first lead screw to rotate, rotating motion is converted into linear motion of the second driving block along the second guide rail, flexible adjustment of the height of the anti-skid clamping seat is achieved, and the requirements for specifications and sizes of different workpieces are fully considered; an operator can easily adjust the height of the anti-skid clamping seat according to actual conditions, so that the anti-skid clamping seat is perfectly matched with a workpiece, and the clamping stability and accuracy are ensured.

The invention relates to the technical field of semiconductor manufacturing equipment, in particular to a multi-station self-adaptive part machining device of semiconductor testing equipment, which comprises a supporting unit, a floating unit and a clamp type machining unit, and is characterized in that the clamp type machining unit comprises a first machining arm positioned outside a workpiece and a second machining arm extending into the workpiece; through a closed-loop force system of the clamp type machining unit, the machining counter-force is self-balanced between the first machining arm and the second machining arm and is not transmitted to the workpiece supporting structure, and therefore the problems that a workpiece is stressed and deformed due to clamping of a traditional three-jaw chuck and a springback ellipse is generated after the workpiece is loosened are thoroughly solved. Meanwhile, the passive floating freedom degree ensures that the cutter can follow the radial run-out and manufacturing errors of the workpiece in real time, the relative distance between the cutter and the wall face is constant all the time no matter how the workpiece deviates, and the problem of local over-cutting or missing cutting is effectively solved.

This invention discloses a dual-station steering gear housing machining fixture in the same direction and its usage method. It includes a base with a first machining position on the base. The first machining position has a first mounting surface (higher on the outside, lower on the inside) and a second mounting surface. The first mounting surface is located on the left side of the first machining position, and the second mounting surface is located on the right side. A left-section positioning mechanism is disposed on the first mounting surface for positioning the left half of the steering gear housing. A middle-section support and clamping mechanism is disposed on the left half of the second mounting surface for supporting, clamping, and positioning the middle section of the steering gear housing. A right-section positioning mechanism is disposed on the right half of the second mounting surface for positioning the right half of the steering gear housing. This invention effectively avoids dimensional deviation problems, improves the stability and accuracy of clamping, effectively reduces production costs, significantly reduces the probability of human error, and significantly reduces equipment modification costs.

The invention relates to the technical field of machining equipment and safety protection, in particular to a follow-up splash-proof shield of a milling machine spindle. The shield comprises a supporting device made of aluminum profile, a sliding device linked with a main shaft of a milling machine, a dynamic protection device integrating a follow-up roller shutter unit, a lateral sealing unit and a gap sealing unit, a visual observation device made of acrylic and a pneumatic clamping tool. The sliding device drives the dynamic protection device to synchronously move in multiple directions along with the main shaft, all kinds of sealing parts form all-dimensional dynamic and static sealing of a milling area, the visual observation device achieves non-shielding monitoring of the machining state, and the pneumatic clamping tool can stably fix a workpiece and eliminate machining vibration and displacement. According to the device, splashing pollution of copper cuttings is effectively eradicated, the cleanliness and machining precision of milling pretreatment of the wiring board are guaranteed, operation and maintenance are convenient and fast, the structure is modularized, adaptability is high, and the protection effect and production efficiency of milling machining can be remarkably improved.