115results about How to "Realize the processing effect" patented technology

The invention relates to a multi-band laser confocal silicon carbide crystal ingot processing device and method, the multi-band laser confocal silicon carbide crystal ingot processing device comprises an objective table and a laser assembly, the laser assembly comprises a first laser, a second laser, a first reflecting mirror, a second reflecting mirror and a laser focusing mirror, the second wavelength laser and the second wavelength laser reflected by the second reflector and emitted by the second laser device are output in a common light path mode, and a to-be-machined crystal ingot on the objective table is machined through the laser focus lens; the objective table comprises an X-axis moving module, a Y-axis moving module, a C-axis module and a B-axis module, the C-axis module is used for driving the to-be-machined crystal ingot to rotate around the vertical center axis of the to-be-machined crystal ingot, and the B-axis module is used for driving the to-be-machined crystal ingot to swing in the vertical plane. The device can improve the laser processing efficiency, can cut the cylindrical crystal ingot, is simple in structure, easy to operate and control, low in cost and particularly suitable for cutting the silicon carbide crystal ingot with large thickness, high hardness and high precision.

The invention belongs to the technical field of machining, and particularly relates to a metal sheet shearing machine which comprises a shearing machine base. A servo motor is fixedly connected to the top face of the middle of the shearing machine base. The output end of the servo motor is fixedly connected with a fixed block; side supports are fixedly connected to the two sides of the fixing block. Through a set of precise design, automatic shearing, synchronous feeding and discharging and machining amount counting of metal sheets are achieved, firstly, the metal sheets are subjected to vacuum adsorption through suction cup frames arranged on the two sides correspondingly, and transfer and positioning of the metal sheets are achieved in cooperation with a servo motor; then, a cutting disc fixed to the shearing machine base is matched with a shearing assembly, and the metal sheet adsorbed to the shearing table is cut at a high speed; after shearing, one suction cup frame releases the sheared metal sheet, the other suction cup frame adsorbs the other metal sheet at the same time, a rapid and accurate synchronous feeding and discharging mechanism is achieved, and the situation that due to the fact that a material sheet is difficult to position accurately, a notch deviates is avoided.

The invention relates to the technical field of chain machining, in particular to an electric saw chain machining platform with a protection mechanism, which comprises a box body, a protection plate and an intermittent overturning platform, and further comprises a pressing mechanism movably mounted in the box body, a driving mechanism fixedly mounted on one side of the box body and an automatic feeding mechanism fixedly mounted on the back surface of the box body, eight sets of positioning mechanisms are installed on the outer side of the intermittent overturning platform at equal intervals through sliding grooves, and one end of the intermittent overturning platform is in transmission connection with the automatic feeding mechanism. The driving mechanism drives the intermittent overturning platform to intermittently rotate, the pressing mechanism vertically reciprocates, meanwhile, the intermittent overturning platform drives the automatic feeding mechanism to perform reciprocating feeding, and the pressing mechanism drives the positioning mechanism and the protection plate to cooperatively work, so that linkage of continuous feeding, accurate positioning, safety protection and machining is realized, and the production efficiency is improved. And the machining efficiency and the operation safety of electric saw chain parts are remarkably improved.

The invention relates to a digital manufacturing and construction method for a special-shaped stone veneer in a large venue, and aims to solve the problems of low machining precision, high mounting difficulty, low construction efficiency and the like of special-shaped stone in construction of an outer vertical face and an inner veneer of a building. The method comprises the following steps: firstly, measuring a building special-shaped structure by using a three-dimensional scanner or a BIM (Building Information Modeling) technology to generate a three-dimensional geometric model; based on the model, combining the material characteristics of the stone, and optimizing the geometric shape and size of the stone through a typesetting algorithm; then the optimized data are imported into five-axis CNC numerical control equipment for precise cutting; pre-assembly is conducted after cutting, errors are detected through laser scanning equipment, and adjustment is conducted till the precision requirement is met; and finally, a laser positioning system and a mechanical sensor are combined, a manual construction team manually installs the stone, and it is ensured that the installation precision meets the design requirement. According to the method, the machining and mounting precision of the special-shaped stone is effectively improved, the construction efficiency is improved, and the structural safety and the attractive effect of a building are guaranteed.

The invention provides a multi-station integrated numerical control rotary vertical reaming and honing machine which comprises a base, a stand column fixedly installed on the base, a shell fixedly installed on the outer sides of the base and the stand column, a front door, a side door and a PLC control cabinet arranged on the shell, the front door and the side door are hinged to the shell, and a fixed table is fixedly installed on the inner side of the base. According to the multi-station integrated numerical control rotary vertical reaming and honing machine, each main shaft is independently provided with a second servo motor, so that each main shaft can be independently driven under the driving of the corresponding second servo motor, and corresponding reaming tools and honing tools can be installed in each floating chuck according to the machining sequence; by the adoption of the structure, the numerical control rotary vertical reaming and honing machine can achieve reaming and honing of the parts on a single machine tool, the machine tool is compact in structure, simultaneous machining of multiple parts and multiple shafts can be achieved, the working procedures are concentrated, the machining efficiency is high, and the occupied area is small.

The utility model relates to the technical field of machining turnover mechanisms, and discloses a metal plate machining turnover mechanism which comprises a workbench, a fixing seat is arranged on the workbench, a first motor is fixedly connected to one side of the fixing seat, a rotary disc is fixedly connected to the output end of the first motor, a first screw seat is fixedly connected to one side of the rotary disc, and a second screw seat is fixedly connected to the other side of the rotary disc. One side of the first screw seat is fixedly connected with a second motor, and the output end of the second motor is fixedly connected with a first threaded rod. According to the metal plate machining turnover mechanism, the positioning and clamping effects are good, turnover is stable and safe, the second motor drives the first threaded rod to rotate, and the first threaded rod drives the clamping plates to clamp the two sides of a metal plate; the air cylinder drives the pressing plate to move downwards to be matched with the check block to tightly press the metal plate, it is guaranteed that the metal plate is accurately and stably positioned and clamped, the first motor is started to drive the first screw base to rotate through rotation of the rotary disc to turn over the metal plate, manual repeated dismantling and turning over are not needed, and the working efficiency and safety are improved.

The invention discloses equipment for producing various building materials, which comprises a supporting base, outer side plates are arranged at the two ends of one side of the top of the supporting base, first rails are arranged at the tops of the outer side plates, first sliding blocks matched with the first rails are arranged on the first rails, a first mold supporting plate is transversely erected at the tops of the first sliding blocks, and a second mold supporting plate is arranged at the top of the first mold supporting plate. A first lower die is arranged at the top of the first die supporting plate, main belt wheels are arranged on the two sides of the upper portion of the inner side of the outer side plate on one side, a first secondary belt wheel and a second secondary belt wheel are arranged above and below the side edge of each main belt wheel, and the main belt wheels are connected with the first secondary belt wheels and the second secondary belt wheels through belts. A conveying shaft is connected to the middle of the main belt wheel on one side, and the output shaft penetrates through the outer side plate and is connected with a first driver installed at one end of the outer portion of the outer side plate. The method has the beneficial effects that the produced building materials are high in universality, low in manufacturing cost, high in production efficiency, low in rejection rate and high in utilization rate of raw materials.

The invention discloses a line reference conversion device, relates to the technical field of machining, and is used for solving the technical problems of machining interruption, pause and large error caused by the fact that a machining machine cannot recognize a line reference in the prior art. The line reference conversion device comprises an alignment assembly, a fixing assembly, an adjusting assembly, a shell and a placing plate, the alignment assembly, the fixing assembly and the adjusting assembly are connected with the shell, the shell is connected with the placing plate, the adjusting assembly is used for adjusting the alignment assembly, and the placing plate is used for placing a workpiece. According to the alignment assembly, the plane where the line reference on the workpiece is located can be converted into the reference plane on the alignment assembly, so that collection, conversion and recognition of the line reference are achieved, errors are reduced, and automatic machining is facilitated.

The invention relates to a method for reducing the content of residual monomers in a polymer composition, the polymer composition, a composition capable of free radical polymerization, a polymer preparation method, a polymer and application.

The utility model relates to a battery protection plate groove gummed paper folding machine which comprises a carrying device, a rotating disc device, a pre-pressing device, a gummed paper feeding device, a gummed paper bending device, a small lug folding device and an edge sealing and shaping device which are installed on a workbench, a plurality of suction cup assemblies are installed on the rotating disc device along the circumferential side, the pre-pressing device is used for shaping a battery protection plate, and the gummed paper feeding device is used for feeding gummed paper. The gummed paper feeding device is used for attaching groove gummed paper to a battery protection plate, the gummed paper bending device is used for bending the groove gummed paper on the two sides of a groove of the battery protection plate so that the groove gummed paper can be erected, and the small lug bending device is used for bending small lugs of the groove gummed paper. And the edge sealing and shaping device is used for carrying out edge sealing and shaping on the battery protection plate attached with the groove gummed paper. The device has the beneficial effects that the automation degree is high, the processing efficiency of attaching the battery protection plate and bending the groove gummed paper can be improved, and the product quality can be improved.

The utility model provides a multi-station press machining system, and belongs to the technical field of machining equipment. The problem that in the prior art, a press is low in automation degree is solved. The multi-station press machining system comprises a rack and a rotating station module connected to the rack, and the rotating station module comprises a rotating disc and a power assembly used for driving the rotating disc to rotate in an indexing mode; the at least two workpiece fixing modules are connected to the rotary table, and each workpiece fixing module is provided with a machining station used for containing a workpiece; the stamping execution module is connected to the rack, and the stamping execution module comprises a stamping execution piece and a stamping driving piece used for driving the stamping execution piece to move up and down in the vertical direction; and the at least one workpiece transfer module is connected to the rack, and the output end of the station transfer module is provided with a clamping jaw used for feeding unmachined workpieces and discharging machined workpieces. The device has the advantages of high efficiency and automation.

This invention discloses a processing apparatus. The feeding structure includes a feeding assembly and a stop located above the machine base. The feeding assembly forms a feeding channel inclined from front to back. The stop is located behind the feeding assembly and is movable in the front-to-back direction. The clamping mechanism includes two clamping parts spaced apart in the front-to-back direction, one of which is movable in the front-to-back direction to move closer to the other clamping part. The picking mechanism includes a picking part located above the machine base and movable in the vertical direction. Two cutting mechanisms are located on the left and right sides of the clamping mechanism and are arranged opposite to each other. The cooperation between the feeding assembly and the stop enables continuous and rapid feeding of the pin for turning. The picking part moves the pin between the two clamping parts. At this point, moving one clamping part closer to the other allows them to clamp the pin together. This simplifies the pin clamping operation steps, reduces the difficulty of clamping, and greatly improves processing efficiency.

The utility model discloses a straight knife grinding and polishing equipment, including the body and the sucking disc workstation who sets along the body length direction, sucking disc workstation can rotate left and right and adjust the work position, and the grinding head seat is swingly supported on the body through horizontal guide rail pair, and the grinding head is swingly supported on the grinding head seat through vertical guide rail pair and grinding head slide seat, and the grinding head is driven to run by grinding head motor, and the horizontal guide rail pair is also provided with horizontal shift slide table on one end of grinding head seat, and the polishing support is provided with on horizontal shift slide table through polishing wheel lifting guide rail pair, and the polishing motor is installed on the polishing support, and the motor shaft of polishing motor is vertically arranged, and the polishing wheel disc is installed on the motor shaft end of polishing motor, and the inclined polishing surface is arranged on the upper end face outer periphery of polishing wheel disc. The straight knife grinding and polishing equipment of the utility model not only can realize the grinding and polishing processing of the sheet straight knife, but also is simple in structure and convenient to use.

The invention belongs to the technical field of biomedical engineering, and provides a preparation method of a high-flux bidirectional temperature sensing flexible electrode. The preparation method comprises the following steps: sequentially stacking a flexible substrate, a wire layer and an insulating layer on a substrate; patterning the insulating layer to expose an electrode region, a temperature sensing window and a circuit connection region of the wire layer; forming an electrode contact connected with the wire layer in the electrode area; a temperature sensing unit connected with the wire layer is formed in the temperature sensing window; forming micro salient points which are connected with the wire layer and are used for connecting a circuit in the circuit connection area; and removing part of the substrate to obtain the flexible electrode. According to the method, the width of the flexible electrode can be reduced, the number of channels is increased, and high-density electrode array processing and batch production are achieved; a temperature sensing unit is integrated on the neural electrode, so that the temperature change of tissues under different stimulation parameters can be accurately monitored, and the working state of the electrode can be adjusted in time. According to the deep stimulation electrode assembly based on the flexible electrode, the hard needle drives the soft needle to enter the brain tissue, so that the electrode implantation damage is reduced.

The invention relates to the technical field of organic liquid hydrogen storage, in particular to dehydrogenation equipment and method in the organic liquid hydrogen storage process, the dehydrogenation equipment comprises a hydrogen storage organic liquid dehydrogenation tank, the middle of the hydrogen storage organic liquid dehydrogenation tank is fixedly connected with a catalyst replacement track, and the inner side of the inner wall of the catalyst replacement track is sleeved with an annular chain; a plurality of dehydrogenation catalyst beds are fixedly connected to the outer side of the annular chain, material ports are formed in the two sides of the top of the outer wall of the catalyst replacement rail correspondingly, and a connecting pipeline and a dehydrogenation catalyst regeneration device are fixedly connected to the upper portions of the material ports. The hydrogen storage organic liquid dehydrogenation device has the advantages that the catalyst replacement track with the dehydrogenation catalyst bed is arranged in the middle of the hydrogen storage organic liquid dehydrogenation tank, so that the dehydrogenation catalyst bed carrying a dehydrogenation catalyst can move on the catalyst integrated track, and the dehydrogenation catalyst in the hydrogen storage organic liquid dehydrogenation tank is replaced; the dehydrogenation equipment can replace the dehydrogenation catalyst while dehydrogenation treatment is carried out.

This application relates to the technical field of automated machining and provides a dedicated automated machining equipment and method for double-end face grinding and milling. The dedicated automated machining equipment for double-end face grinding and milling includes a base worktable device, a workpiece driving device, two sets of end face grinding devices, two sets of end face milling devices, a positioning device, a sensing and detection component, a PLC control system, and an operating system. This dedicated automated machining equipment for double-end face grinding and milling can coordinate the operation of each device through the PLC control system, realizing automated grinding and milling of the workpiece's double ends, thereby achieving the inventive objective of improving workpiece machining accuracy and expanding the equipment's adaptability. In addition, this application also provides a machining method applied to the aforementioned dedicated automated machining equipment for double-end face grinding and milling.

The invention discloses an automatic bamboo straw punching machine, comprising a frame, a left support platform, a right support platform, a disc-shaped conveying device and a punching device, wherein the disc-shaped conveying device is located between the left support platform and the right support platform, and bamboo straw placement grooves are evenly arranged on the disc-shaped conveying device. The punching device comprises a tracking punching positioning seat and a left puncher and a right puncher arranged on both sides of the tracking punching positioning seat, and positioning plates are also arranged on both sides of the tracking punching positioning seat, and positioning holes are arranged on the positioning plates at positions corresponding to the bamboo straw placement grooves. The invention can realize automatic conveying and punching processing of bamboo straws, has a simple overall structure, a high degree of automation, can effectively improve bamboo straw punching efficiency and punching accuracy, improve production efficiency, and reduce labor costs.

The utility model discloses a screw tap clamping device and grinding machine equipment with the screw tap clamping device, the screw tap clamping device comprises a rotary positioning mechanism and an auxiliary positioning mechanism, and the rotary positioning mechanism is used for positioning the first end of a workpiece and driving the workpiece to rotate; the auxiliary positioning mechanism comprises a positioning piece and a mounting piece, a clamping position used for clamping a workpiece is formed between the positioning piece and the rotary positioning mechanism, the positioning piece is used for positioning a second end, opposite to the first end, of the workpiece, one end of the mounting piece is connected with the positioning piece, and an avoiding groove is formed in the other end of the mounting piece and used for avoiding the workpiece when the slotting grinding tool machines a threaded groove in the workpiece. The outer circle machining grinding tool and the slotting grinding tool are coaxially arranged. The screw tap clamping device can be used in cooperation with double grinding tools which are coaxially arranged, the two ends of a workpiece can be positioned, the machining efficiency is improved, and the machining precision is also improved.

This application discloses a machine tool structure with a combined machining head. The application includes: a first base and a second base, the first base having a working area for placing the workpiece to be processed; a column, on which a first X-axis linear module is mounted; a first group of electrical discharge machining (EDM) heads, comprising at least four heads mounted on the first base and respectively connected to the first X-axis linear module, each of the four heads having an independent Y-axis linear module and a Z-axis linear module; and a second group of EDM heads, comprising at least one head mounted on the first base, the second base having a second X-axis linear module, the at least one head connected to the second X-axis linear module, the at least one head having an independent Y-axis linear module and a Z-axis linear module, and all four heads connected to an EDM power supply.

The utility model relates to the technical field of mask production, in particular to a whitening mask production all-in-one machine which comprises a box body, supporting legs arranged at the bottom of the box body, rubber pads arranged on the lower sides of the supporting legs, a control panel arranged on the right side of the box body, and a material frame arranged on the upper side of the box body and behind the upper side of the box body. When the first sliding rod works, the first sliding rod is driven by the first motor to move towards the material frame, the air suction hole works, materials are sucked and then move towards the outer side, meanwhile, the material receiving plate moves towards the outer side, the air suction hole is controlled by the air pump to stop working, and the materials fall onto the first storage plate. When working, a second sliding rod is driven by a second motor to move towards the inner side of the box body, an air suction hole works, the second sliding rod moves towards the outer side, a filling gun conducts filling work, the air suction hole stops working, materials fall onto a second storage plate, a third sliding rod is driven by a third motor, and mask production is completed after heat sealing is conducted through a heating belt.

The utility model discloses a kind of tool for fixed plate angle cutting, including bottom plate, clamping mechanism and workpiece support mechanism are equipped on the bottom plate, the workpiece support mechanism has the displacement of driving workpiece angle change, angle limiting mechanism is symmetrically equipped on the bottom plate in the two sides of workpiece support mechanism.The utility model sets up the workpiece support mechanism that can drive workpiece angle change on bottom plate, cutting and angle processing to workpiece can be simultaneously realized, without placing workpiece to cutting workbench cutting again placing to milling workbench processing angle, process and processing equipment can be simplified, improve processing efficiency;Meanwhile angle limiting mechanism is also set, cutting processing of angle can be determined, avoid cutting error.

The application discloses a kind of cannon shell flexible automation production method and production structure, one of which, a kind of cannon shell flexible automation production method, comprising the following steps: step S1, material is processed, product profile is turned out;Step S2, the product structure is turned out to the product after processing in step S1;Step S3, the product after processing in step S2 is tested;Step S4, the product after testing in step S3 is qualified, and press into bandage in product;Step S5, the product after processing in step S4 is finished machining and visual inspection.The application discloses a kind of cannon shell flexible automation production method and production structure, can realize the flexible automation of cannon shell, reduce the participation of manpower;By introducing industrial robot, visual inspection system and intelligent logistics system to realize the automatic processing and detection conveying function of shell.

The BMS assembly comprises a high-voltage board, a low-voltage board, a first FPC board and a second FPC board, the high-voltage board integrates an information acquisition circuit and an electric device control circuit, and a master control circuit for controlling the information acquisition circuit and the electric device control circuit is integrated on the low-voltage board; the high-voltage board is provided with a first connection point area electrically connected with the first FPC board, the first connection point area comprises connection points of the information acquisition circuit and the electric device control circuit, the high-voltage board and the low-voltage board are in transition connection through the second FPC board, and the low-voltage board and the first FPC board are provided with connection points for external electrical connection. According to the invention, the high-voltage circuit and the low-voltage circuit are separately arranged, so that the problem of overlapping between the circuits can be avoided, miniaturization and standardization of the BMS assembly can be realized, and then automatic processing and assembling of the BMS can be realized.

The application relates to the technical field of welding devices, in particular to an automatic welding device suitable for distribution network trenchless construction pipelines, which comprises a fixing frame, a mounting frame, a movable frame and a positioning assembly, and welding assemblies and cleaning assemblies are arranged in the movable frame respectively. The welding assemblies and the cleaning assemblies can be freely transposed in the automatic welding device, the cleaning assemblies in the upper and lower movable frames are used to clean the welding positions of the construction pipelines, the oxidation layer, rust and coating pollutants on the surfaces of the construction pipelines are removed, the welding effect on the surfaces of the construction pipelines is improved, the welding assemblies are used to automatically weld the construction pipelines, the welding processing efficiency of the construction pipelines is remarkably improved, the automatic welding device has a small overall floor area, is very convenient to carry, does not need manual intervention during use, and the welding stability of the construction pipelines is guaranteed.

The present invention provides a feeding mechanism for material rolling processing, which belongs to the technical field of rolling processing equipment. It solves the problem that the existing rolling processing equipment is inefficient and cannot guarantee product quality. The present invention provides a feeding mechanism for material rolling processing, including a base frame, a switching seat, a switching assembly and a driving assembly. In the present invention, through the coordinated use of the base frame, the switching seat, the switching assembly and the driving assembly, the entire process of automatic feeding, rolling processing and automatic output of the feeding mechanism can be realized, thereby effectively improving the working efficiency of the feeding mechanism; secondly, during the material processing process, the inner ejector pin and the outer ejector pin respectively press against the two ends of the material to ensure that the material will not be misplaced during the processing, thereby ensuring the processing accuracy of the material.

The invention relates to the technical field of couplers, and provides a coupling assembly, a preparation method and a coupler comprising the coupling assembly, the coupler comprises a first grounding plate, the coupling assembly and a second grounding plate which are sequentially stacked, a connector communicated with an inner conductor of the coupler is arranged on the outer wall of the coupling assembly, and the coupling assembly comprises a shell. A through groove body is arranged in the shell, a coupler inner conductor is arranged in the groove body, the coupler inner conductor comprises a straight-through inner conductor and a coupling inner conductor, and a plurality of through holes are formed in the side wall of the shell along the path where the straight-through inner conductor and the coupling inner conductor are located. In the preparation process of the coupling assembly, the positions of the coupling inner conductor, the straight-through inner conductor and the shell are always kept integrated, the assembly precision is improved, and the assembly difficulty is reduced.

The utility model provides a kind of ion grinding high-resolution in-situ microscopic analysis device, the ion grinding high-resolution in-situ microscopic analysis device includes vacuum chamber;Sample stage for carrying the sample to be measured is set in vacuum chamber;Ion grinding unit, the ion grinding unit includes the ion beam emission end extended into vacuum chamber;High-resolution in-situ microscopic analysis unit, the high-resolution in-situ microscopic analysis unit includes the image acquisition end extended into vacuum chamber;And with the processor of high-resolution in-situ microscopic analysis unit electrical connection;The ion grinding unit is used to emit ion beam to the sample to be measured and is ground, obtains the target cross section of target area;The high-resolution in-situ microscopic analysis unit is used to obtain the two-dimensional image of the target cross section;The processor is used to carry out three-dimensional reconstruction to the two-dimensional image, obtains the three-dimensional imaging of the target area.

The utility model relates to mechanical processing technical field, concretely is a kind of self-adapting shaft sleeve inner and outer circle synchronous processing device, including rack, main shaft system, inner circle processing unit and outer circle processing unit, the rack is used to support overall structure;Main shaft system is installed on rack, include shaft sleeve chuck and driving equipment, wherein driving equipment is made of case, driving motor, speed reducer, transmission wheel and driving wheel, workpiece rotation is realized by belt drive, inner circle processing unit includes adjusting track assembly one and milling cutter one, adjusting track assembly one is made of advancing track one, offset track one and lifting track one, cooperation gear drive device and screw drive device realize three-dimensional accurate positioning;Milling cutter one is equipped with cylinder and milling cutter, can complete high-precision inner circle processing, outer circle processing unit structure symmetry, including the same adjusting track assembly two and milling cutter two of structure, for synchronously completing the processing of shaft sleeve outer circle.

The present invention relates to the field of lens production technology, in particular to an automatic lens processing system and method, which is used for lens processing of mobile phone shells. A boss is provided on the mobile phone shell, and a groove is provided on the boss. The groove is used to accommodate the lens, and the groove is provided with an assembly ramp for pressing the lens. The automatic lens processing system includes a lens feeding mechanism, a lens conveying line, a processing jig, a press-in assembly mechanism, a milling processing mechanism, a fine carving processing mechanism, and a polishing mechanism. The processing jig is provided on the lens conveying line, and the lens conveying line is used to drive the processing jig to convey through the press-in assembly mechanism, the milling processing mechanism, the fine carving processing mechanism, and the polishing mechanism in sequence. The present invention provides an efficient, stable and reliable solution for the processing of mobile phone shell lenses, which meets the requirements of the industrial manufacturing field for high-quality and high-efficiency production.

The invention provides a CNC built-in clamping automatic feeding device which comprises a CNC machine table, the CNC machine table is provided with a CNC main shaft, a tool changing mechanical arm and a tool magazine, a plurality of machining tools are stored in the tool magazine, and the CNC built-in clamping automatic feeding device is characterized in that a material taking tool handle structure is arranged on the tool changing mechanical arm; the CNC machine table is provided with a clamping clamp structure and an automatic feeding bin structure located on one side of the clamping clamp structure. The automatic feeding bin structure is used for storing workpieces, the clamping fixture structure is used for fixing the workpieces during machining, and the clamping fixture structure further drives the workpieces to rotate during machining of the workpieces, so that machining of the front faces and the back faces of the workpieces is achieved. Through cooperative work of the automatic feeding bin structure, the clamping fixture structure and the material taking cutter handle structure, automatic feeding and automatic rotating reverse face machining of the CNC machine tool are achieved, manual intervention is reduced, the production efficiency is improved, personnel can consider multiple CNC machine tools, the requirement for operators is reduced, and therefore the labor cost is reduced.