58results about How to "Increased processing flexibility" patented technology

The application discloses a synthesis method of a large single-crystal sodium-ion battery layered oxide positive electrode material, and comprises the following steps: (1) weighing metal oxides containing transition metal elements, transferring to a device with mixing functions, uniformly mixing, and obtaining a metal oxide mixture; (2) adding acid to the metal oxide mixture, fully mixing, and completing an acid treatment process; (3) adding alkali to the mixture after acid treatment, fully mixing; (4) transferring the mixture obtained in the step (3) to a calcining furnace, high-temperature calcining, and obtaining a layered oxide. The acid treatment process is introduced, the surface of the metal oxide forms a defect structure under the action of the acid, and the defect structure is more beneficial to the formation of strong interaction between each component of the metal oxide and between the metal oxide and sodium-containing alkali, so that a larger single-crystal layered oxide structure is finally formed, and the specific capacity, rate performance and cycle performance are excellent.

The invention relates to the technical field of three-dimensional data processing, and discloses a three-dimensional grid data processing and multiplexing method and system, and the method comprises the steps: S1, obtaining and analyzing grid data, obtaining three-dimensional grid original data, and carrying out the format recognition, geometric analysis and topology analysis of the three-dimensional grid original data; s2, carrying out reuse-oriented standardization processing; s3, constructing multiplexing description information; s4, grid resource storage and index management; s5, determining a subset based on the request; s6, on-demand conversion and result generation; and S7, unified scheduling control. By constructing multiplexing description information containing a unique identifier, a hierarchy mapping relationship, a block mapping relationship, version information and a service adaptation mark, unified management and efficient multiplexing of grid data under different hierarchy and service scenes are realized, and unified data semantic support is provided for hierarchical retrieval, on-demand extraction and multi-service collaboration; therefore, the reusability of the three-dimensional grid data and the system cooperation efficiency are remarkably improved.

This utility model discloses a hole-reaming device for metal casting processing, comprising: a processing base; a hole-reaming unit and a dust suppression component, both of which are mounted on the processing base and are used for hole reaming and dust removal of the metal casting, respectively; a clamping unit and a rotating component, both of which are mounted on the processing base and are used for clamping and rotating the metal casting, respectively. This utility model achieves this by linking the hole-reaming unit and the dust suppression component, simultaneously reaming and cleaning dust to prevent dust accumulation from affecting processing accuracy and ensuring a safe working environment. The clamping unit and the rotating component work together to securely clamp the metal casting and flexibly adjust the rotation angle, meeting multi-directional hole-reaming needs, improving processing flexibility and accuracy, and effectively improving the processing quality of the metal casting.

The invention discloses an efficient concurrent transmission method and device for cell data and a storage medium, and relates to the technical field of lithium batteries. The method comprises the following steps: acquiring inherent identity identification information and a factory performance parameter set of a lithium cell; performing correlation analysis and entropy evaluation on the performance parameter set, and dynamically selecting a differential compression strategy for compression according to the correlation analysis and entropy evaluation; performing lightweight encryption on the compressed data and the identity identification information to generate a data block with physical meaning; writing the data block into a special storage chip embedded in the lithium cell body; after an external access request is received, the current key state parameter of the battery cell is read from the special storage chip, and safety state evaluation and authority verification are carried out in combination with the current key state parameter and a certificate attached to the access request; and selectively activating the decryption of the corresponding ciphertext segment in the data block and the decompression reconstruction process based on the parameter correlation model according to the permission level passing the verification. And deep binding and credible traceability of the data and the physical entity are realized.

This application discloses a task processing method, electronic device, storage medium, and computer program product, relating to large-scale model technology and computer technology. The method includes: constructing a first mapping relationship and a second mapping relationship associated with multiple tasks to be processed, wherein each task to be processed includes at least one word vector; the first mapping relationship represents the mapping relationship between a thread block index and a task index of the task to be processed; the second mapping relationship represents the mapping relationship between the task index of the task to be processed and a sub-model index of a hybrid inference model; determining a target sub-model corresponding to a target thread block in the hybrid inference model based on the first and second mapping relationships; and analyzing and calculating multiple tasks to be processed using the target sub-model to obtain task processing results. This application solves the technical problems of low processing efficiency and poor flexibility in related technologies when handling heterogeneous multi-task processing.

The utility model relates to the technical field of metal processing, in particular to a surface treatment device for non-ferrous metal alloy material processing, which comprises a casing, an inlet is arranged on the right side of the casing, an outlet is arranged on the left side of the casing, and the inner wall of the outlet is rotatably connected with two symmetrically arranged transmission shafts. The front end of the conveying shaft located on the right side penetrates through the front side of the machine shell and extends to the outside, the surfaces of the two conveying shafts are fixedly connected with conveying wheels, and the surfaces of the two conveying wheels are sleeved with the same conveying belt. When the device faces metal machining pieces with different thicknesses or different grinding requirements, an operator can control the height of the grinding belt by operating the shifting fork, so that the device can adapt to the metal machining pieces with various thicknesses and grinding requirements, and the machining efficiency and flexibility are greatly improved.

The water-sand multi-element acoustic online monitoring system and method relate to the technical fields of hydrological monitoring and acoustic measurement. The application is to solve the problems that the traditional single-frequency acoustic monitoring method cannot distinguish the echo intensity changes caused by concentration changes or particle distribution, and it is difficult to realize high-precision flow rate and concentration synchronous monitoring in the same system. The application amplifies and filters the reverberation signal received by the acoustic transducer and extracts the echo envelope. The echo envelope data is calculated by inversion to obtain the water-sand concentration and particle size information. The application has the ability of synchronous measurement of flow rate and concentration, and uses Doppler shift technology to solve the flow rate profile, which provides key data support for sediment transport flux calculation.

The invention relates to the technical field of membrane separation, and discloses a multi-channel filtering membrane bag which comprises a membrane bag body, and the membrane bag body at least comprises a first functional unit, a material channel layer and a second functional unit which are sequentially stacked in the thickness direction; the first functional unit comprises two first functional film layers which are oppositely arranged and a first supporting flow guide layer located in the middle, and the first functional unit is formed by welding in advance; the second functional unit comprises two second functional film layers which are oppositely arranged and a second supporting flow guide layer located between the two second functional film layers, and the second functional unit is formed by welding in advance; the first functional unit, the material channel layer and the second functional unit are provided with mutually aligned communicating hole sites, and are connected in a peripheral sealing manner to form an integral membrane bag structure, so that different functional membrane layers and a material flowing area form an integrated structure, and various treatment processes such as filtration, concentration, cleaning or gas transfer and the like can be realized in the same membrane bag; therefore, the functional integration level of the membrane module is improved.

The utility model provides a kind of LED lamp shell carrier automation equipment, it is related to equipment technical field, the utility model includes machine body, the machine body is placed on ground and provides support for integral component;Guide rail, the guide rail is set on machine body, and the carrier is conveyed using motor and transmission belt;Track, the track is set on machine body, and the shell is conveyed using transmission wheel;Mechanical hand, the mechanical hand is set on machine body, wherein mechanical hand cooperation suction cup is grasped to the shell stacked on carousel on track and is conveyed;Positioning device, the positioning device is set on carousel, the utility model can be stacked to the LED lamp shell of multiple different sizes by setting positioning device, reduce personnel when different size shell is stacked, need to replace corresponding size rack, cause its operation step is complicated and time-consuming and laborious situation, improve the processing efficiency and stacking flexibility of different size shell.

The invention relates to the technical field of batteries, and discloses a battery cell and a battery pack, the battery cell mainly comprises a pole group, an insulating film, two first adhesive films and two second adhesive films; the insulating film coats the periphery of the pole group; the two first adhesive films are folded respectively, wrap the corners of the bottom of the insulating film and are located on the two opposite sides of the insulating film, and each first adhesive film is provided with at least one folded edge after being folded; and the two second adhesive films respectively cover the outer surfaces of the flanges of the two first adhesive films and are used for fixing the flanges. According to the battery cell disclosed by the invention, the pole group is coated with the insulating film, and then the bottom corners of the insulating film are coated with the two first adhesive films, so that insulation performance reduction caused by slight material falling or foreign matter accumulation of the pole pieces can be avoided, the use reliability of the insulating film is improved, the use safety of the battery cell is improved, and the service life of the battery cell is prolonged; and the flanging of the first adhesive film is fixed through the second adhesive film, so that the flanging formed after folding can be prevented from being warped, and the pole group can be put into the shell conveniently.

The embodiment of the invention discloses a big data processing method and system based on cloud computing, and the method is realized based on a cloud computing platform, and the method comprises the steps: decomposing a big data processing task into a plurality of micro-tasks, and distributing the micro-tasks to distributed computing nodes; each computing node selects an adjacent node based on a hyper-local algorithm, and constructs a local task processing model only by using local data and metadata of the adjacent node dynamically selected based on a fast game mechanism, the metadata including micro-task data semantic features and task dependency relationships of the adjacent node, and the task dependency relationships of the adjacent node are calculated; semantic features are extracted through a natural language processing technology, and a task dependency relationship is determined based on input and output association of the microtasks; according to the local task processing model, independently executing the micro-task on each computing node, and dynamically adjusting the distribution of the micro-task through a point-to-point local negotiation mechanism; and aggregating the micro-task processing results of the computing nodes to generate a global data processing result. According to the method, the operation and communication overhead is reduced.

The utility model discloses a kind of special-shaped sponge processing device, belong to sponge product processing technical field, its technical scheme main points include processing table, the bottom of the processing table is fixedly connected with transverse moving mechanism, the top of the transverse moving mechanism is provided with longitudinal moving mechanism, the top of the longitudinal moving mechanism is provided with cutting assembly, the front side of the processing table is provided with fixed component, can solve the existing special-shaped sponge processing device usually lack cutting knife inclination angle flexible adjustment function, inconvenient to adapt to the cutting demand of special-shaped sponge complex profile, thereby needing multiple replacement cutting tool or adjusting equipment angle, affect processing efficiency, and the existing special-shaped sponge processing device usually uses traditional mechanical clamp extrusion fixed sponge, inconvenient to quickly fix different thickness, shape sponge, thereby clamping time is long and needs frequent adjustment clamp, affect production efficiency problem.

The application discloses a feeding device compatible with carriers and mother-daughter rings and relates to the field of manufacturing semiconductor devices. The feeding device comprises a feeding base provided with mounting through holes and a fixing mechanism fixed to the upper side of the feeding base. The fixing mechanism comprises a limiting assembly and a material ejecting assembly. The limiting assembly can limit the carriers or the mother-daughter rings, and the material ejecting assembly is tightly pressed from one side to fix the carriers or the mother-daughter rings. The limiting assembly comprises a sleeve ring for nesting the mother-daughter rings and N-1 stop sheets. The size of the sleeve ring is adapted to the carriers. When the carrier is a regular N-polygon, the sleeve ring is inscribed in the regular N-polygon. The stop sheets are arranged at the positions where the carriers are tangent to the circle where the sleeve ring is located. The material ejecting assembly is tightly pressed from the side of the regular N-polygon where no stop sheet is arranged to fix the carriers and the sleeve ring. The application can realize the quick and tool-free disassembly of the carriers and the mother-daughter rings under the premise of ensuring the compatibility of multiple types of clamps.

A method for one-step preparation of methylamine by hydrogenation amination of carbon dioxide, belonging to the field of catalysis. In a fixed-bed reactor, carbon dioxide, hydrogen, and ammonia are reacted. The catalyst comprises a microporous or mesoporous silica support, and the active component includes indium, zirconium, and at least one metal promoter selected from nickel, copper, palladium, rhodium, and platinum; the In 3d... 5 / 2 The binding energy is 444.0~444.7 eV, which is more than 0.2 eV lower than that of pure indium oxide; the single-pass conversion rate of carbon dioxide is not less than 50%, the total selectivity of methylamine is not less than 80%, and the selectivity of the byproduct carbon monoxide is not higher than 20%. This invention constructs a unique In-Zr-M active center, with In, Zr, and M uniformly co-distributed at the nanoscale. By adjusting the NH3 / CO2 ratio, the ratio of dimethylamine to trimethylamine can be controlled. The catalyst of this invention exhibits excellent performance and good stability, and has broad application prospects in the fields of carbon dioxide resource utilization and green synthesis of methylamine.

The utility model discloses a kind of PCIE optical fiber communication boards for special components, including FPGA, FPGA is integrally connected with synchronous clock input interface, three-way digital optical fiber receiving interface, SMA input interface, TypeC interface group, independent SDRAM storage unit and optical signal output port by function interface;FPGA is coordinated each above-mentioned component module work, realizes the protocol conversion of PCIE protocol and optical fiber communication, data encoding and decoding, cache management function.The utility model innovatively adopts mixed clock domain architecture, organically combines synchronous clock tree and asynchronous data channel, simultaneously supports the mixed networking mode of copper cable and optical fiber through photoelectric composite interface design, while guaranteeing high-speed data transmission, effectively reduce the electromagnetic interference influence in transmission path;In addition, the multi-protocol conversion engine and hardware acceleration module integrated in FPGA further improve the processing efficiency and flexibility of system.

The application discloses a low-temperature pre-annealing production method of oriented silicon steel, and realizes the low-temperature pre-annealing production method by using a low-temperature pre-annealing furnace, and comprises the following steps: step 1, a vertical steel coil (4) is arranged in a furnace body (1) through a sealing device (3), a heating system (2) is used for heating the furnace temperature in the furnace body from normal temperature to a first temperature, the first temperature is greater than or equal to an MgO dehydration temperature, the furnace temperature is less than or equal to 950 DEG C, water in an MgO coating on a surface of the vertical steel coil is decomposed and discharged, and a cold spot (41) of the vertical steel coil reaches a temperature higher than the MgO dehydration temperature; and step 2, after the low-temperature pre-annealing is completed, a temperature difference between the cold spot and a hot spot (42) of the vertical steel coil is not more than a temperature difference threshold value, and subsequent high-temperature annealing production is carried out on the vertical steel coil. The application can break through the capacity limitation of a conventional high-temperature annealing process, greatly improves the yield on the basis of guaranteeing the production quality, and simultaneously improves the problem of poor production and process flexibility of the high-temperature annealing process.

The utility model relates to the technical field of chain production, and provides a roller chain production riveting device which comprises a guide wheel used for guiding a roller chain to enter a riveting channel, the guide wheel comprises a rotary shell, and an adjusting mechanism is arranged in the rotary shell; the adjusting mechanism comprises a rotating disc, a plurality of driving connecting rods surround the periphery of the rotating disc in an array mode, pushing blocks are arranged at the other ends of the driving connecting rods, the two ends of the driving connecting rods are hinged to the rotating disc and the pushing blocks respectively, and guide sliding grooves are formed in the bottoms of the pushing blocks and matched with guide rails fixed to the rotating shell. Adjusting teeth are fixed to the pushing block, penetrate through the side wall of the rotary shell and can penetrate into a gap between every two adjacent rollers of the roller chain. The guide wheel has the beneficial effects that the pitch of the guide wheel can be changed by utilizing the adjusting mechanism, so that the production requirements of roller chains with different specifications and different pitches can be met.

This utility model discloses a bending device, comprising: a frame, on which a drive mounting part and a bending part are provided, wherein the number of drive mounting parts is three, and the three drive mounting parts are evenly distributed on the frame, and each drive mounting part is provided with a drive device; and a bending mechanism, the bending mechanism comprising a side plate, a lifting plate, a pressure plate, and a pressure block, wherein the side plate is disposed on the bending part, the lifting plate is disposed on the bending part, the pressure plate is drivenly connected to the drive device, and the pressure block is movably disposed on the pressure plate, the position of the pressure block corresponding to the position of the lifting plate. This utility model can improve the processing range of the bending machine.

This invention discloses a data compliance dynamic detection method and system based on deep learning, belonging to the field of data security processing technology. It addresses the problem that existing methods, which focus primarily on text data processing when performing compliance detection based on extracted comprehensive semantic words, lack the ability to comprehensively process multimodal data and comprehensively evaluate complex compliance issues, leading to inaccurate compliance assessments. The method includes preprocessing the original data stream, extracting features from the preprocessed data stream based on data stream type, and using a compliance analysis model to identify and analyze multimodal feature sets based on a standard rule base. In this invention, preprocessing the original data stream filters and reduces noise in the multimodal data, ensuring the authenticity and validity of the data. Furthermore, the compliance analysis model's identification and analysis of multimodal feature sets ensures comprehensive processing capabilities for multimodal data and comprehensive evaluation capabilities for complex compliance issues.

The utility model provides a kind of lens edge automatic chamfer polishing device, it is related to chamfering equipment technical field, comprising: polishing table;The middle part upper end of polishing table is rotated and installed carousel by pivot;The polishing table on the left and right sides of carousel is respectively fixedly installed clamping frame, clamping mechanism is equipped on clamping frame, clamping mechanism is used to clamp the lens placed on carousel;Two The clamping frame between another side of polishing table is fixedly equipped with support frame at the position close to edge;Chamfer frame is installed on support frame, chamfer mechanism is equipped on chamfer frame, and chamfer mechanism is used to chamfer the lens ring edge. First, clamping mechanism uses clamping cylinder to drive clamping seat horizontal movement, drives clamping roller and driving roller to be jointly used to lens edge and be clamped.

The utility model relates to the technical field of gear machining, in particular to a gear shaving machine convenient to adjust for gear machining, and solves the problems that the gear shaving machine in the prior art is inconvenient to adjust the position of a gear shaving cutter, so that the flexibility of gear machining is greatly reduced, the operation complexity is increased, and the production efficiency is remarkably reduced. A gear shaving machine convenient to adjust and used for gear machining comprises a frame body, a bearing rod is slidably connected to the inner side of the frame body, a second motor is fixedly connected to one side of the outer wall of the frame body through a bolt, gear shaving cutters are slidably connected to the two ends of the bearing rod correspondingly, and fixing rods are slidably connected to the two gear shaving cutters correspondingly; one end of the bearing rod penetrates through the side wall of the frame and is in transmission connection with a second motor output shaft. According to the gear shaving device, the position of the gear shaving cutter is simply and quickly adjusted, the machining flexibility is greatly improved, the operation complexity is reduced, and the problem that frequent manual adjustment is needed when traditional equipment treats gears of different specifications is solved.

The utility model relates to the technical field of machining platforms, and discloses a machining platform for a five-axis numerical control machine tool, which comprises a mounting bottom plate, a fixing ring is mounted at the bottom of the mounting bottom plate, a disc is arranged in the fixing ring, a first motor is mounted at the top of the disc, and a fixing seat is mounted at the bottom of the disc; a bidirectional bolt is arranged at the top of the mounting bottom plate, the bidirectional bolt is connected with the output end of a second motor, the second motor is mounted in the mounting bottom plate, two moving blocks are arranged on the bidirectional bolt, and telescopic air cylinders are arranged at the tops of the moving blocks. Through the design of a fixing ring, a bidirectional lead screw and a telescopic air cylinder, two moving blocks and parts above the two moving blocks can be driven to be subjected to position adjustment through rotation of a bidirectional bolt, and therefore clamping and fixing of a workpiece are rapidly completed. And meanwhile, the first motor drives the fixing ring to rotate around the disc, the fixed workpiece can be slowly rotated and adjusted, and the multi-angle machining requirement is met.

This invention relates to the field of drilling machine technology and discloses a rotary multi-station automatic drilling machine, including a machine body and a processing disc device and a drilling device disposed inside the machine body. At least two drilling devices are provided, surrounding the outer periphery of the processing disc device. The processing disc device has at least two processing positions. Continuous processing can be achieved through the intermittent rotation of the processing disc device. Furthermore, it can press the workpiece internally from the inside out of the hollow cylinder, conforming to the inner wall of the hollow component to achieve internal support. This allows for support and positioning from within the workpiece. Combined with the external clamping structure, the workpiece is fixed both internally and externally. This avoids slight tilting of the workpiece due to the vertical pressure generated during drilling, which could cause workpiece tilting, slightly tilted workpiece holes, and defective products. This ensures the stability and uniformity of the support.

This invention discloses a bending and shaping device for automotive sunroof guide rails, relating to the field of automotive parts processing technology. The device includes a processing table, a wheel-changing assembly, a bending assembly, and a positioning assembly. A rotation opening is provided on the processing table; the wheel-changing assembly is located on the processing table. This device, through a bending motor driving a bending auxiliary wheel to rotate, can stably perform bending operations on the guide rail. The action is smooth and the force is even, ensuring regular bending formation, reducing deformation deviation, and improving bending quality and processing stability. By adjusting the movement of the bending auxiliary wheel driven by the motor, the position of the bending auxiliary wheel can be flexibly adjusted according to the diameter of the main bending wheel. The position adjustment is precise and convenient, requiring no complex debugging. It is adaptable to bending main bending wheels of different diameters, facilitating the bending of the guide rail to various angles to meet diverse bending processing needs.

The chemical mechanical polishing method for hybrid bonding of the present application firstly performs first polishing on the surface of the wafer on the first polishing disc until the copper layer on the surface of the medium layer of the wafer is removed. Then the copper pillar in the medium layer of the wafer is secondly polished on the first polishing disc, the surface of the copper pillar is controlled to be lower than the surface of the medium layer, and the first height difference d1 between the surface of the copper pillar and the surface of the medium layer is between 500 angstrom and 1500 angstrom. Finally, the medium layer of the wafer is thirdly polished on the second polishing disc, the surface of the copper pillar in the medium layer is controlled to be lower than the surface of the medium layer, the second height difference d2 between the surface of the copper pillar and the surface of the medium layer is between 30 angstrom and 50 angstrom, and the ratio of the second polishing time t2 of the second polishing to the third polishing time t3 of the third polishing is between 1:1 and 1.5:1. The chemical mechanical polishing method for hybrid bonding of the present application can effectively control the recess degree of the copper pillar relative to the medium layer by optimizing the over-polishing time of the first polishing disc and the polishing time of the second polishing disc, and the recess degree of the copper pillar relative to the medium layer is controlled within the nanometer level.

The utility model discloses a four-axis clamp for a speed reducer box body, which relates to the technical field of clamps, and comprises a mounting seat, the upper end of the mounting seat is fixedly connected with a support, the inner wall of the support is provided with a rotating unit for rotating the speed reducer box body, the upper end of the support is rotatably connected with a rotating plate, and the upper end of the rotating plate is provided with a rotating shaft. And an adjusting unit is arranged at the upper end of the rotating plate. Through cooperation of the adjusting unit and the clamping unit, the speed reducer box bodies of different sizes can be clamped, machining errors caused by displacement or shaking of the box bodies are reduced, and therefore the machining precision is improved; the speed reducer box body fixed on the clamp can flexibly rotate through the adjusting unit, the tedious operation of repeatedly adjusting the position of the box body in the machining process is avoided, and the machining efficiency and flexibility are improved.

This invention provides a conductive film pressing device, including a pressing machine. The pressing machine includes an operating table, and two sets of positioning mechanisms are symmetrically arranged above the operating table. Each positioning mechanism includes positioning plates symmetrically arranged above the operating table. The positioning plates have an L-shaped structure, and mounting grooves are formed on the inner sidewalls of the positioning plates. The mounting grooves are used to fix the ends of the conductive film. Adjacent positioning mechanisms are connected to the two positioning plates in each positioning mechanism through adjusting components. This invention uses two sets of symmetrical L-shaped positioning plates to engage the ends of the conductive film through the inner mounting grooves, forming a right-angle positioning structure that precisely limits horizontal displacement. This avoids misalignment caused by hand tremors during manual alignment, reduces faults such as poor contact at the pressing interface and circuit breaks, and significantly improves the alignment accuracy and reliability of conductive film end pressing.

The application discloses a plasma-TIG integrated welding device capable of adjusting arc thermal power distribution, which comprises a plasma welding torch and a control circuit. The plasma welding torch comprises a plasma arc power supply, a high-frequency generator and a tungsten electrode; the plasma arc power supply is connected with the tungsten electrode through the high-frequency generator, and the tungsten electrode faces the workpiece directly; the control circuit comprises a dynamic push-pull device, and the dynamic push-pull device is connected with the tungsten electrode. The device improves the plasma welding circuit and the arc starting mode. When plasma welding is carried out, the dynamic push-pull device is used to make the tungsten electrode move downward before arc starting, the distance between the workpiece and the tungsten electrode is reduced, the arc is directly started with the workpiece, the dynamic push-pull device is used to make the tungsten electrode move upward after arc starting, and the tungsten electrode is recycled into the nozzle. Through the triple action of mechanical compression, thermal compression and magnetic compression, a stable constrained arc is formed, the plasma welding enters into a normal working state, and the conversion between the plasma welding and the TIG welding is realized.

The utility model discloses a combined drill assembly which comprises a drill bit and a linkage mechanism. The linkage mechanism comprises an upper bottom plate, a lower bottom plate, a spline shaft, a gear and a drill spindle, the gear is mounted between the upper bottom plate and the lower bottom plate, the drill spindle is mounted on the upper bottom plate and meshed with the gear, the upper end of the drill spindle is connected with a drill bit, and the spline shaft is arranged below the lower bottom plate and connected with an external power source. When the spline shaft receives external power input, the gears synchronously drive the multiple drill shafts to rotate, and the multiple drill bits can machine hole sets at the same time. According to the utility model, the machining efficiency is improved, repeated positioning and movement are reduced, the machining precision is improved, and the specifications of the drill bit and the drill spindle can be adjusted as required to meet the machining requirements of different hole groups.