359results about How to "Guaranteed machining accuracy" patented technology

The utility model discloses an anti-deformation bearing thin-wall part machining supporting and fixing structure which comprises a base and a supporting assembly, a machining table is connected to the top of the base, clamping blocks are arranged on the two sides of the top of the machining table, and the supporting assembly is arranged in the machining table and comprises a bevel gear ring and a plurality of bevel gears meshed with the bevel gear ring. A lead screw is arranged in the machining table through a plurality of rotating frames, the surface of the lead screw is in transmission connection with a supporting plate through a lead screw nut, the supporting and fixing structure is provided with a supporting assembly, a driving motor drives a bevel gear ring to rotate, a plurality of bevel gears rotate synchronously, then the lead screw is driven to rotate, and the supporting plate ascends to support the interior of the thin-wall part; by means of the internal supporting mode, pressure and friction force borne by the inner wall of the thin-wall part during polishing can be effectively dispersed, deformation caused by lack of supporting is avoided, the size precision, the shape precision and the surface quality of the bearing thin-wall part are guaranteed, the product percent of pass is increased, and waste products are reduced.

The application provides a double-station worktable for CNC, and particularly relates to the technical field of CNC machine tool auxiliary equipment, and comprises a CNC main body, an inner platform and a tool head unit, and further comprises a double-shaft switching mechanism arranged between the outer side of the CNC main body and the inner platform, wherein the double-station worktable for CNC; the double-shaft switching mechanism composed of an X-axis displacement component, a Y-axis displacement component and a sinking fastening component is arranged, so as to solve the defects of the existing technology, such as the jamming misplacement caused by the single guide rail alignment of the multi-station switching, the lack of special connection structure, the non-separation of the carrier and the guide rail during the processing, the vibration transmission affecting the precision, and the like, to realize the cooperative action of the X-direction bearing movement of the jig table, the Y-direction smooth connection and the locking of the processing position sinking, and the double-station switching does not need complex debugging, so that the equipment downtime is greatly reduced, and the processing precision and stability are ensured.

The utility model discloses bus strength stress test equipment, which comprises a detection support, a fixed processing structure and a stretching and bending structure, the fixed processing structure and the stretching and bending structure are mounted on the detection support, and relates to the technical field of bus testing, in particular to a self-adaptive clamping system. An electromagnetically driven arc extrusion block is adopted to be matched with a liftable convex block, stepless pressure adjustment is realized through magnetic force conduction, and a horizontal telescopic spring buffer mechanism is combined, so that a bus can be tightly fixed, machining impact can be absorbed, and clamping stability is ensured; multi-dimensional deformation control is achieved, a cross-shaped extrusion support is carried on a rotary extrusion circular ring pipe, 360-degree dynamic extrusion can be conducted on a bus in cooperation with four sets of concave wheels driven by electromagnetic repulsion, and precise closed-loop control over the stretching strength is achieved in cooperation with real-time monitoring of a pressure sensor.

The utility model discloses an axial dust collection integrated motorized spindle which comprises a motorized spindle body, the motorized spindle body is provided with a dust collection structure, a fan structure and an automatic tool changing structure, the fan structure comprises a brushless motor and a centrifugal blade assembly, the brushless motor drives the centrifugal blade assembly to rotate to form airflow, and wood chips and dust are sucked and discharged from the dust collection structure; the automatic tool changing structure comprises a lifting air cylinder, the dust collection structure comprises a dust collection cover, and the lifting air cylinder drives the dust collection cover to move axially when the motorized spindle changes tools. The motorized spindle integrates dust collection, cooling and automatic tool changing functions, and the problems that in the prior art, the dust collection effect is poor, energy consumption is high, the occupied space is large, and cost is high are solved.

This utility model provides a hydraulic clamp for tensile test specimens, including a base plate. A crossbeam parallel to the base plate is fixedly mounted on top of the base plate, and a corresponding lifting plate is arranged below the crossbeam. A clamping hydraulic cylinder is provided on the base plate to drive the lifting plate to move up and down. A short-side centering mechanism is arranged below the lifting plate. This utility model quickly centers the billet through the short-side centering mechanism, and then the clamping hydraulic cylinder drives the lifting plate to move up and automatically clamp and fix the billet. Both sides of the billet can be processed simultaneously by machine tool equipment, ensuring processing accuracy and improving processing efficiency.

This utility model discloses an environmentally friendly, high-cleanliness steel drum edge-rolling clamping device, including a base, a square box fixedly connected to the upper surface of the base, a cleaning component disposed on the upper surface of the base, two connecting columns disposed in front of the square box, and two arc-shaped clamping claws fixedly connected to the outer surface of each connecting column, and a power component for driving the connecting columns to move inside the square box. This device uses an electric push rod of the cleaning component to move the square base and the rinsing nozzle up and down, allowing adjustment of the rinsing position according to the height of the steel drum. Furthermore, the pump pressurizes and delivers the cleaning liquid from the storage tank to the nozzle, greatly increasing the rinsing pressure and improving the oil removal rate. The power component drives the T-shaped slider and connecting columns to move via an electric telescopic rod, causing the arc-shaped clamping claws to automatically adjust the clamping position according to different sized steel drums, thus adapting to different specifications of steel drums and achieving a secure fixation.

The utility model discloses a boring tool for an inner spherical surface of a flange hole, and belongs to the field of machining. A boring tool for the inner spherical surface of a flange hole comprises a boring tool rod and a molded surface boring tool. The boring cutter rod comprises a conical boring cutter rod handle and a rotary cutter rod connected with the boring cutter rod handle, a screw hole matched with the blind rivet is formed in the end of the boring cutter rod handle, a square hole used for installing the molded surface boring cutter is formed in the rotary cutter rod, a bolt used for fastening the molded surface boring cutter is arranged on one side of the square hole, and a threaded hole matched with the threaded hole is formed in the other side of the square hole. The profile boring cutter is specially designed in structure according to the inner spherical surface of a flange hole. Complex machining of the inner spherical surface of the flange hole can be completed at a time, multi-procedure errors are avoided, the size and shape precision is guaranteed, the requirement of a drawing is met, traditional step-by-step machining can be replaced, the tool changing frequency and the clamping time are reduced, efficiency is greatly improved, and production cost is reduced.

The utility model relates to the technical field of casting part machining, and discloses a stabilizing device for casting part machining, which comprises a working table, a supporting bottom plate is fixedly connected to the center of the top of the working table, and fixing plates are fixedly connected to the centers of the edges of the front side and the rear side of the top of the supporting bottom plate. The tops of the two fixing plates are fixedly connected with a mounting plate, a stabilizing mechanism is arranged at the center position of the top of the supporting bottom plate, the stabilizing mechanism is arranged between the two fixing plates, and limiting vertical plates are arranged on the left side and the right side of the stabilizing mechanism correspondingly; a containing groove used for containing a casting part is formed between the limiting vertical plate and the stabilizing mechanism. By arranging the stabilizing mechanism, the casting part can be effectively fixed in the machining process, and the problem that the casting part shifts or deforms due to vibration or impact in the machining process is solved. Meanwhile, the structure is simple, operation and maintenance are easy, and the production cost is reduced.

The utility model relates to sound absorption board processing technical field, and disclose a kind of edge grinding device of sound absorption board processing, hinged with support plate on fixed frame, the one end fixedly connected with pressing plate of support plate, the bottom both ends of support seat are fixedly connected with first electric push rod, the push rod end of two first electric push rods is fixedly connected with connecting frame, the other end of support plate is hinged in the inside of connecting frame, the bottom of support seat is provided with collection component;The utility model is moved by the push rod of second electric push rod and the setting of guide block, can be positioned for the fixed position of sound absorption board, then by the push rod of first electric push rod, connecting frame is moved, so that connecting frame moves the other end of support plate, support plate rotates with fixed frame as center at this time, the one end of support plate drives pressing plate to move downward at this time, so that pressing plate is in contact on the top of sound absorption board, to complete the fixation of sound absorption board, simple and quick operation, and can guarantee the processing accuracy of sound absorption board.

The application relates to the technical field of nuclear fuel assembly manufacturing, and particularly discloses a nuclear fuel assembly casting type upper tube seat machining clamp and a machining method, wherein the tube seat blank is placed on a bottom plate, a positioning top block is pushed, four positioning pins below a positioning push rod are centered with positioning holes of the tube seat blank; then a positioning rod B is screwed to shorten the distance with a positioning rod A; then locking screws and fastening bolts on the edge frame of a positioning frame plate are locked to fix the tube seat blank on the bottom plate, positioning is realized; finally, the positioning rod B is completely screwed out of the positioning rod A, the bottom plate, the positioning frame plate and the tube seat blank are integrally taken out and fixed on a machining equipment. The machining clamp and the machining method satisfy the positioning clamping and machining requirements of the casting type upper tube seat, the upper tube seat after machining completely satisfies the drawing and technical condition requirements, and the machining scheme satisfies the engineering production.

This invention relates to the field of tapping equipment technology, specifically a multi-axis synchronous tapping device for clutch stamping parts. It includes a tooling base on which an assembly is mounted. By installing a distance adjustment component on the upper mounting base and slidably connecting a third tapping gear to this component, the radial position of the third tapping gear and the tap can be flexibly adjusted, thereby changing the tapping distribution circle diameter. This allows the device to quickly adapt to clutch stamping parts with different hole specifications, significantly reducing changeover costs. Simultaneously, it employs a full gear transmission layout where one first tapping gear simultaneously meshes with multiple second tapping gears, and each second tapping gear then meshes with a third tapping gear. The transmission chain is short and all parts are rigidly synchronized, completely eliminating vibration problems caused by unequal speeds and expansion / contraction clearances in universal joint transmissions, effectively ensuring the machining accuracy of the threads.

The utility model provides a kind of processing frock of marine high-power diesel engine cylinder cover inclined hole, it is related to marine diesel engine parts processing technical field, including base, backplate, positioning plate, cushion block, drill jig plate body, pin shaft and drill jig cover;The backplate and the cushion block are installed on the base top, the positioning plate is fixed on the backplate, the drill jig plate body is positioned fastening by the pin shaft, the drill jig cover is set on the drill jig plate body.The utility model solves the problem that different frock needs to be called when processing center processes cylinder cover inclined hole, there is the problem of repeated up and down activity, not only increase production cost, also reduce production efficiency, also difficult to guarantee the processing accuracy of inclined hole, it can lead to inclined hole drilling deviation due to angle problem, affect the cooling effect of cylinder cover.

The utility model relates to the technical field of tenoning machines, and discloses a double-end tenoning machine convenient for waste cleaning, which comprises an equipment base, a fixed plate fixedly connected to the surface of the equipment base, the other end of a movable shaft bracket is connected with a movable shaft center, the outer side of the movable shaft center is fixedly connected with one end of a connecting rod, and the other end of the connecting rod is connected with a bearing shaft center; one end of the moving shaft bracket is connected with the shaft rod through the second axis, and the other end of the moving shaft bracket is connected with the connecting rod through the movable axis. According to the utility model, through synchronous operation of the vibration cleaning mechanism and tenoning processing, waste materials are cleaned while processing is carried out, the machine does not need to be shut down for manual cleaning, the production interruption time is greatly reduced, and the overall processing efficiency is improved; and through the linkage design of the cleaning plate and the cleaning and collecting bin, wood chips and crushed materials generated by cutting are pushed into the closed collecting bin in real time, and flying of the wood chips is effectively restrained.

This invention belongs to the field of laser additive manufacturing technology, specifically relating to a dual-spot parallel scanning additive manufacturing system and method. A laser generation unit dynamically distributes a laser beam to the first and second optical paths according to a preset energy ratio through polarization beam splitting. The spot generation unit uses two spatial light modulators to modulate the two beams into patterned spots and dot spots respectively. The filtering and imaging unit filters and images the two beams. The parallel scanning unit drives the dual spots to scan synchronously on a powder bed. The control unit performs model slicing and patterned region segmentation, and dynamically allocates energy and synchronously controls all units to work together based on the segmentation results. This achieves a single laser, dual optical paths, irregularly shaped spots, and parallel scanning, simultaneously balancing processing efficiency and forming accuracy, effectively solving the technical problem of traditional single-spot methods that struggle to achieve both efficiency and accuracy.

The invention discloses an Ai computing power server PCB mainboard manufacturing process, which comprises the following steps: a pressing step: pressing a plurality of sub-cards into a total card, the thickness of the total card being L; in the drilling step, a through hole is drilled in the main clamp, the diameter of the through hole is D, and the aperture ratio L / D is not smaller than 10: 1; an electroplating step: electroless copper electroplating; a first hole plugging step, wherein the through hole is filled with heat-conducting resin; a back drilling step: detecting and adjusting back drilling processing parameters, and performing back drilling processing on the through hole; a micro-etching step: washing the total card by using a micro-etching liquid medicine; and a second hole filling step of filling resin or solder mask ink in the through hole. According to the Ai computing power server PCB mainboard manufacturing process, the heat conduction resin is adopted to plug the hole, then back drilling is conducted, it is guaranteed that no liquid medicine is left in the hole, the hole is not blocked during back drilling, the heat conduction coefficient of the heat conduction resin is high, the heat dissipation performance of the mainboard is improved, back drilling machining parameters are detected and adjusted during back drilling, and the back drilling machining precision is guaranteed.

The utility model discloses a kind of chip waste-removal machines, it includes rack, pearl wool placing assembly, feeding mechanism, lifting pressure marking mechanism, mobile cutting mechanism and female die and male die;Feeding mechanism is pushed pearl wool to the below of lifting pressure marking mechanism by ejection block piece by piece, lifting pressure marking mechanism controls male die and press down and extrudes pearl wool partial into female die through hole, the knife of mobile cutting mechanism is translated and cut between male die and female die, and different shape cotton sheet is formed;In the second embodiment, lifting fixed plate is additionally provided with flat head thimble for waste removal, and the quality of finished product is improved;The present application can efficiently and accurately process pearl wool in large quantities, and has significant technical advantages and application value.

This utility model provides an improved machining mold for casting machinery manufacturing, including a base and a stamping plate. A female mold is fixedly installed on the upper end of the base, and a male mold is fixedly installed on the bottom of the stamping plate. The female mold can accommodate the male mold and process the workpiece. The female mold has an elastic mechanism inside. Fixed rods are fixedly installed on both sides of the base, and fixed plates are fixedly installed on the upper ends of the fixed rods. The upper surfaces of the two fixed plates abut against the two sides of the fixed plates, respectively. The elastic mechanism includes a rectangular cavity opened inside the female mold. A sliding plate is slidably installed inside the rectangular cavity, and the bottom of the sliding plate is elastically connected to the bottom wall of the rectangular cavity by a spring. This utility model effectively prevents the mold from shaking or shifting during the stamping process, ensures the precise fit between the male and female molds during processing, and helps to improve the processing accuracy of the workpiece.

The invention provides a combined clamping device for machining and a using method. A U-shaped cover is inversely fixed to the top of a clamp bottom plate, a vertical pull rod is slidably mounted in the center of the top of the U-shaped cover through a sliding sleeve seat, and a chuck is fixed to the top end of the vertical pull rod; the bottom end of the vertical pull rod is in sliding fit with a first shifting fork sliding groove in one end of a double-end shifting fork, and the vertex angle portion of the double-end shifting fork is hinged to the inner wall of the U-shaped cover. An L-shaped vertical rod is fixed to the outer wall of the U-shaped cover, a screw transmission mechanism is installed between the L-shaped vertical rod and the U-shaped cover in a penetrating mode, a threaded sleeve of the screw transmission mechanism is rotationally limited to the U-shaped cover, and a threaded rod is installed in the threaded sleeve in a threaded transmission mode; the end of the threaded rod is in sliding fit with a second shifting fork sliding groove in the other end of the double-end shifting fork and drives the vertical pull rod to vertically ascend and descend through the first shifting fork sliding groove. The clamp adopts a combined transmission structure combining screw transmission and plugging transmission, and can be used for reliably clamping a workpiece in the machining process.

The utility model provides a kind of multi-station CD thread lathe machine, belong to machining technical field, this multi-station CD thread lathe machine includes rack, workstation and tool moving module, the workstation is set on the rack, the tool moving module is set on the workstation, tool moving module is installed with lathe tool assembly on;At least two groups of rotating module for fixing workpiece jig are provided on the workstation, all the rotating module is synchronously rotated by transmission mechanism simultaneously.The utility model is driven by all rotating module synchronous rotation by setting at least two groups of rotating module, and using same driving element, the same speed synchronous rotation of multi-station workpiece is realized, effectively solve the same batch workpiece processing difference problem caused by station independent operation of existing double-station equipment, improve the consistency and stability of product in batch production, and then improve product yield.

The application discloses a single crystal silicon wafer processing clamp, and relates to the technical field of single crystal silicon processing, which comprises a mounting ring, a driving gear ring, a primary clamp assembly, a guide, a secondary clamp assembly and a driving unit. The mounting ring serves as a bearing base, the top of the mounting ring is provided with the driving gear ring, the inner ring is provided with the primary clamp assembly, the outer wall is fixedly connected with the guide, the guide is internally provided with the secondary clamp assembly, and the driving unit is internally provided with a built-in driving unit which is connected with the two-stage clamp through the mounting ring. For different thicknesses of silicon wafers, thin silicon wafers are clamped by the silicon wafer clamping plate through the driving motor one and the driving gear ring and the inclined push head; thick silicon wafers are clamped by the silicon wafer clamping arm after being centered by the driving motor two and the driving ring and the centering arm, and are clamped by the silicon wafer clamping arm. The clamp integrates the grading clamping and the precise guide structure, has the protection design, is high in adaptability, accurate in clamping, can avoid damage to the silicon wafer, is suitable for automatic processing, and improves the processing efficiency and the qualified rate.

The invention belongs to the technical field of silica gel processing equipment, and particularly relates to automatic joint cutting equipment for a silica gel plug. A turntable conveying mechanism, and a joint cutting mechanism, a detection mechanism, a waste discharge mechanism and a blanking mechanism which are arranged at the periphery of the turntable conveying mechanism are arranged on the machine table, the turntable conveying mechanism conveys raw materials to different stations, and the joint cutting mechanism is provided with a cross-shaped punching rod which can cut a cross-shaped notch on a silica gel plug; the detection mechanism detects whether a cross-shaped notch is cut off or not through a detection camera, the waste discharging mechanism cuts off the whole silica gel plug from raw materials, the discharging mechanism is provided with a suction cup, and products obtained after punching on the raw materials are completed are taken down from the rotary disc conveying mechanism and placed in a collecting box. A plurality of silica gel plugs can be machined at a time, the production efficiency is high, all stations are independently installed, and maintenance is convenient.

The utility model relates to the technical field of fluid conveying, and discloses a numerical control vertical lathe guide rail lubricating device which comprises a workbench, a rack and a guide sliding rail, the top of the workbench is fixedly connected with an oil storage tank, the front side of the oil storage tank is fixedly connected with an electric one-way valve, and the front end of the electric one-way valve is fixedly connected with a filtering tank. The front end of the inner wall of the filtering tank is fixedly connected with a pressure sensor, the inner wall of the filtering tank is fixedly connected with a filtering net, the top of the workbench is fixedly connected with a water pump, the right side of the water pump communicates with an oil pumping pipe, and the right side of the top of the workbench is fixedly connected with a high-pressure gas tank. Lubricating oil in the oil storage tank is pumped into the filtering tank through the water pump, the pressure in the tank is monitored through the pressure sensor, when the pressure is abnormal, the pulse controller triggers the air tank to backflush and clean the filter screen, meanwhile, the air pump conveys air to form an air curtain, filtering, self-cleaning and protection are achieved, the service life of a guide rail is prolonged, and the precision of a machine tool is improved.

The utility model relates to the technical field of PCB processing, in particular to a PCB splitting clamp with a damping effect, which comprises a processing table, a supporting assembly is arranged on the surface of the processing table, the supporting assembly comprises two first moving rods and a first placing plate, two sides of the top of the first placing plate are fixedly connected with mounting seats, and the first moving rods are fixedly connected with the mounting seats. The surface of the mounting seat is connected with a spring damping rod, one end of the spring damping rod is connected with a fixing seat, and the top of the fixing seat is fixedly connected with a second placing plate. Through the arrangement of the supporting assembly, the key supporting and clamping effects are achieved in the PCB splitting process, the position of a PCB is effectively fixed, and the PCB splitting efficiency is improved; and uniform bottom supporting force is provided for the PCB in the cutting process, bending, deformation or damage, caused by uneven stress or unstable clamping, of the board body is prevented, the supporting assembly can be adaptively adjusted according to PCBs of different thicknesses and sizes, and use is convenient.

The invention relates to the technical field of process control, and discloses a digital twinning control method and system for coring of a special optical component. The method comprises the steps that a digital twin model is constructed through a multi-source sensor, and a machining geometric reference is determined; distortion features are identified, residual stress distribution is analyzed, and classification identifiers are generated; a dynamic simulation prediction technology is adopted to optimize a machining path based on distortion causes, and an adjustment scheme is formed; quantizing the parameter weight and adjusting the stress release regulation and control parameter to generate an optimized execution scheme; processing dynamic evolution is tracked, the distortion cause attenuation trend is analyzed, and geometric residual error distribution is obtained; if the error does not reach the standard, clamping parameters are adjusted, the model is updated, and a final control strategy is determined; and executing the strategy and integrating multi-source data, and outputting a final processing control result. According to the invention, the precision of special optical component coring processing is improved.

The utility model provides a new energy battery box thin wall spare processing frock, including four axle bottom plate, four axle bottom plate is equipped with a plurality of positioning slot, a plurality of bridge pier mounting hole, a plurality of installation slot, positioning block, a plurality of positioning block installation fixed in positioning slot is used for with the bottom plate recess of battery box cooperation positioning, bridge pier, a plurality of bridge pier mounting fixed on bridge pier mounting hole, pressboard, install on bridge pier, be used for cooperation bridge pier vertical direction fixed battery box, side edge fixing device, install on installation slot, be used for horizontal direction fixed battery box, the utility model strengthens universality, is applicable to different size's battery box blank, prevents the phenomenon of vibration sword in processing, and the reinforcing device also is equipped with the adjustment function to adapt the error of blank, reduce battery box clamping frequency, improve processing efficiency, increase the limiting device, even if the worker locks the force excessively also can not cause the product deformation to the additional pressure of product, guarantees its processing accuracy.

The invention discloses a segmented series spring shock absorber and machining equipment, and belongs to the technical field of vehicle shock absorption. The shock absorber comprises a gas spring, a heavy-load spring, a light-load spring and a retainer, wherein the retainer is arranged between the light-load spring and the heavy-load spring; a load energy release device and a temperature adaptation assembly are further arranged on the retainer, and the load energy release device comprises a bearing disc, an annular storage cavity and an energy release pad and is used for absorbing beat vibration energy; the temperature adaptation assembly comprises a ventilation hole and a friction pad, heat generated by the friction pad can be transmitted to the energy release pad, and low-temperature compensation and high-temperature heat dissipation are achieved. The invention further provides milling equipment for machining the clamping-in groove and the wedge-shaped groove, precise machining of the wedge-shaped groove is achieved through the eccentric milling principle, and the pressure relieving assembly ensures that a cutter stably stretches out through buffering of non-Newtonian fluid. The problems of response accuracy, retainer stability, beating vibration durability and temperature adaptability of the shock absorber under different load working conditions are effectively solved.

The invention discloses a high-stability static pressure guide rail device for heavy equipment, and relates to the technical field of precision mechanical guide rails, the bottom surface of a movable sliding table is fixedly connected with a pull-down constraint support, a plane static pressure oil cavity group is located on the bottom surface of the pull-down constraint support, and the bottom end of a plane oil supply channel extends into the plane static pressure oil cavity group; and the V-shaped sliding rails are fixedly connected to the two sides of the bottom face of the movable sliding table, the V-shaped static pressure oil cavity sets are located on the side faces of the bottoms of the V-shaped sliding rails, and the bottom ends of the V-shaped oil supply channels extend into the V-shaped static pressure oil cavity sets. The comprehensive bearing capacity of the guide rail is remarkably improved, the large-load requirement of heavy equipment is met, the central plane supporting area provides main vertical bearing capacity, the double-V-shaped guide rail provides multidirectional constraint and auxiliary bearing, and the lateral constraint structure provides static pressure support in the horizontal direction.

The utility model relates to the technical field of clamps, in particular to a clamp for glass processing, which comprises a machine frame and a clamping unit, the clamping unit comprises a bottom plate, a support bin, a sliding column, a rack, a gear, a synchronous motor, a pressing plate, a buffer frame, a spring, a rotating assembly and an auxiliary assembly, and two ends of the spring are fixedly connected with the pressing plate and the buffer frame respectively. The auxiliary assembly is connected with the bottom plate and the rack, glass is placed on the bottom plate, the controller is clicked to start the synchronous motor to drive the gear to rotate, due to the fact that the gear is meshed with the rack, the sliding column moves downwards in the sliding hole at the moment, the position of the pressing plate is adjusted till the buffer frame makes contact with the glass, and the spring is used for buffering the pressure of the pressing plate to prevent the glass from being crushed. The rotating assembly is used for rotating the bottom plate, the auxiliary assembly supports the bottom plate to rotate, the machined glass is clamped in the mode, the deviation condition in the polishing or trimming process is avoided, and the machining precision and efficiency of the machined glass are guaranteed.