429results about How to "Quick alignment" patented technology

The invention provides a large and small model cooperative training method and device for a multi-modal large language model. The method comprises the following steps: inputting multi-modal samples such as images, videos and audios into a multi-modal shared encoder to generate a multi-modal token; inputting the text sample into a text encoder to obtain a text token; multi-modal tokens of different modals are combined with text tokens, a pre-trained small multi-modal large language model is used for forward distillation of a pre-trained large multi-modal large language model, a projection layer is trained to obtain a trained projection layer, and the projection layer is connected between the small multi-modal large language model and the large multi-modal large language model; and utilizing the trained projection layer and the pre-trained large-scale multi-modal large language model to reversely distill the small-scale multi-modal large language model, thereby obtaining the trained large-scale and small-scale multi-modal large language models at the same time in the training process. Not only is the cross-modal alignment capability of the large-scale multi-modal large language model improved, but also the performance of the small-scale multi-modal large language model is enhanced through knowledge distillation.

The invention relates to the technical field of carton stacking, and discloses a carton production stacking device which comprises a mechanical arm, the output end of the mechanical arm is rotationally connected with a sliding seat, and the inner surface of the sliding seat is slidably connected with a sliding plate through a sliding block. The distance between the telescopic suction cups is changed, so that the adsorption stability of the telescopic suction cups to cartons of different sizes is improved, a first sealing plate and a second sealing plate block the bottoms of the telescopic suction cups, and the situation that in the placing process of the device, dust adheres to the telescopic suction cups, and the adsorption effect of the telescopic suction cups is affected is prevented; and a rotary hook lock resets and clamps a clamping shaft, the situation that dust enters a protection frame from a gap and is attached to the telescopic suction cup due to the gap between a first sealing plate and a second sealing plate is avoided, and then the protection effect on the telescopic suction cup is improved.

The invention provides a large language model alignment method, which comprises the following steps: acquiring a pre-trained large language model, and initializing the pre-trained large language model to enter a text completion task state; performing model feature retrieval on the target data set, and determining at least one target large language model; constructing a context alignment prompt word according to the target large language model, and inputting the context alignment prompt word into a pre-trained large language model; obtaining a target session text, updating the target session text into the context alignment prompt word, and reasoning to obtain a session response text; the method comprises the following steps of: adding a session response text of a current session round into a context alignment prompt word; and obtaining a target session text of the next dialogue round, inputting the target session text and the context alignment prompt word into the large language model to obtain a session response text of the next dialogue round, and setting the next dialogue round as the current dialogue round. According to the method, efficient alignment of the pre-trained large language model can be realized.

The utility model relates to the technical field of exhaust pipe diameter reshaping, in particular to an exhaust pipe diameter reshaping device which comprises a shell, a feeding end, a discharging end and a diameter reshaping device. The diameter-shaping and pipe-expanding mechanism main body is located on the upper portion of the interior of the shell, the upper end face of the diameter-shaping and pipe-expanding mechanism main body is fixedly connected with the output end of a first electric push rod, and the diameter-shaping and pipe-expanding mechanism main body is used for shaping the diameter of the exhaust pipe; and the alignment feeding device is arranged on the side, close to the feeding end, of the interior of the shell and used for feeding the exhaust pipe. The exhaust pipes are placed on the placing plate, the placing plate can be used for aligning the exhaust pipes in advance, then the aligning and feeding device is used for pushing the placing plate to move horizontally, and therefore the exhaust pipes are pushed to the position under the diameter-shaping and pipe-expanding mechanism body, rapid alignment and feeding of the exhaust pipes are achieved, time is saved, and the production efficiency is improved. And the diameter shaping efficiency is improved.

The embodiment of the present application provides a chemical equipment ventilation duct welding device, which relates to the field of ventilation duct processing technology. The chemical equipment ventilation duct welding device includes: an assembly mechanism, a driving clamping mechanism, the driving clamping mechanism is arranged in the middle of the bottom surface of the assembly mechanism, the driving clamping mechanism enables the welds of multiple pipes to be quickly aligned, and a weld distance adjustment mechanism, the weld distance adjustment mechanism is arranged in the middle of the assembly mechanism and the driving clamping mechanism. The ventilation duct before welding and the completed ventilation duct will not be affected by the clamping arc plate during the loading and unloading process, and the ventilation duct can be unloaded horizontally without the need for other lifting equipment. At the same time, the functions of rapid alignment of the welding surface of the ventilation pipe and automatic adjustment of the welding gun position are realized, which greatly simplifies the pipeline welding steps and realizes the simultaneous welding of multiple pipelines, ensuring the quality of pipeline welding.

The utility model discloses a hub convenient to install, which belongs to the technical field of automobile accessories, and comprises a wheel disc and a rim, the inner side of the rim is in threaded connection with an inner ring, a plurality of spokes distributed at equal intervals are fixedly connected between the inner ring and the wheel disc, one side of each spoke is provided with a clamping plate, and the other side of each spoke is provided with a clamping groove. One end of the clamping plate is connected with the inner side wall of the rim in a clamped mode, one side of the wheel disc is fixedly connected with a limiting disc, a center hole is formed in the center of one side of the wheel disc and located in the inner side of the limiting disc, the rim can be in threaded connection with an inner ring through the clamping plate, and under cooperation of the clamping plate, the rim can be clamped and fixed through the clamping plate. The rim and the wheel disc can be of an independent structure and can be detached and installed one by one in the installation process, installation operation of workers is more convenient, the installation efficiency of the wheel is greatly improved, and meanwhile replacement and maintenance cost can be reduced.

The invention discloses an intelligent device interaction method, system and terminal based on large model training, and the method comprises the steps: collecting user feedback data and user voice interaction data, and constructing a data set according to the user feedback data and the user voice interaction data; training a basic large model according to the data set, optimizing the basic large model by adopting a reward function model in each training process, and outputting the trained basic large model when the training is completed; and based on the trained basic large model, outputting a user operation intention by adopting the trained basic large model according to the user operation data when the user operation data is acquired each time, and performing retraining according to the user operation intention. According to the invention, the intelligent device has an active learning ability, and can quickly align the user intention and adapt to the speaking habit of the user through background training, so that the active man-machine interaction ability is realized, the user intention is actively judged, and the user can use the device more easily.

The utility model discloses a traction sheave installation auxiliary frame for elevator installation, and relates to the technical field of elevator installation. The auxiliary mounting frame comprises a mounting base, at least two sets of bearing pulleys are arranged above the mounting base, and one set of bearing pulleys is composed of two bearing pulleys with the axes parallel to each other; the single bearing pulleys between two adjacent groups of bearing pulleys are in one-to-one correspondence and are coaxially arranged; and a driving device for driving all the bearing pulleys to move up and down is also arranged on the mounting seat. The traction wheel is directly placed on the auxiliary support, the horizontal position and the vertical position of the traction wheel and the rotating position of the rotating shaft of the traction wheel can be adjusted at any time, and the rotating shaft of the traction wheel and the power output shaft of the speed reducer can be rapidly and coaxially aligned and installed through the coupler.

The utility model provides a panel high-brightness LED (light-emitting diode) lamp, which relates to the technical field of panel high-brightness LED lamps and comprises a lamp base, a plurality of lamp bead blocks are arranged on one side of the lamp base, a lampshade is detachably mounted on one side of the lamp base through bolts, a cleaning and collecting device is arranged on the inner wall of the lampshade, and the cleaning and collecting device is connected with the lamp bead blocks. By arranging the cleaning and collecting device, in the lighting process of the LED lamp, when insect corpses adhere to the interior of a lampshade after the LED lamp is used for a long time, a motor in the inner wall of a first sliding groove can be started to drive a threaded rod to rotate, and therefore a brush and a scraping plate can be driven to move back and forth in the inner wall of the first sliding groove; the insect corpses retained at the bottom of the lampshade are pushed to the two ends of the lampshade, fall out from the L-shaped holes after being pushed to a certain position and fall into the inner wall of the collecting box to be collected, later treatment is facilitated, and the situation that the illumination range of the lamp beads is blocked, and the illumination effect of the lamp bead blocks is affected is avoided.

The utility model discloses a stacking angle measuring device capable of being used for loose materials in the field of physical property measurement of materials, which comprises a base plate support, a base plate fixing device, a base plate, a funnel neck support, a funnel and a surrounding shooting device, and the base plate fixing device is arranged on a base plate fixing device guide rail on the upper surface of the base plate support. The four base plate fixing devices jointly and horizontally support and position a circular base plate, a vertical fixed supporting rod, a height-adjustable vertical movable supporting rod, a horizontal supporting rod and a circular tube clamping device are sequentially connected to the tail end of one side of the base plate support, a funnel neck is fixed in the circular tube clamping device, and a surrounding shooting device is fixed to the upper surface of the base plate support. The diameter of the base plate and the height and the position of the funnel opening can be adjusted, the range of the grain size and the stacking angle of the material capable of being measured is wide, convenient and accurate measurement is achieved, the problem that partial laboratory stacking angle measuring devices can only measure powder is solved, and scientific data acquisition can be achieved through the surrounding shooting device.

The invention discloses a matching method and system based on a 5G network, Beidou positioning and non-line-of-sight microwave, and relates to the technical field of target signal positioning, and the matching method comprises the steps: building a static and dynamic combined calibration data set through obtaining high-precision geographic position information and real-time signal intensity data, and carrying out the calibration of the calibration data set; and adaptive direction adjustment and rapid focusing of the antenna are supported, and efficient communication and accurate positioning in a complex scene are realized. The calibration matching model is trained based on the calibration data set, so that the precision and adaptability of the model under multiple geographical environments and non-line-of-sight conditions are improved, an efficient antenna positioning mechanism is provided, and the stability and real-time performance of a communication link are guaranteed; the method is particularly suitable for complex environments such as disaster rescue, accident personnel can be quickly and accurately positioned, and rescue efficiency and action reliability are remarkably improved.

The invention discloses an efficient alignment method for repeatedly clamping an impeller blade, which comprises the following five steps of: compiling and simulating a single-side back arc molded surface quantitative alignment program, rotating an initial angle error, resetting an initial angle, compiling and simulating a light-seeing trial cutting program, and finely adjusting the initial angle to realize the circumferential efficient alignment of the blade. And the repair efficiency and the repair quality are improved.

The invention relates to the technical field of energy storage components, and particularly discloses a super lithium ion capacitor module which comprises a plurality of super capacitors and further comprises a plurality of upper fixing frames and a plurality of lower fixing frames. A plurality of lower fixing frames; a connecting rod; a connecting piece I; a connecting piece II; according to the invention, two adjacent super capacitors are connected through the connection of the first connecting piece and the second connecting piece on the two adjacent upper fixing frames, the connection mode of the first connecting piece and the second connecting piece is combined connection, and the connection is realized through inserting the sleeve plate in the second connecting piece into the slot in the first connecting piece. The sleeve plate is pulled out of the slot to disconnect the connecting piece I and the connecting piece II, so that the super capacitor is convenient to disassemble and assemble, the replacement efficiency of the super capacitor is improved, and other super capacitors are not easy to damage when the super capacitor is replaced.

The invention discloses a multi-source fusion continuous positioning method in combination with a prior feature map, and aims to solve the problem that an existing vision-inertial odometer easily generates accumulative errors in a GNSS denial environment, the method comprises the following steps: constructing a prior feature map comprising key frame poses, feature point descriptors and 3D coordinates based on an open source algorithm; a track displacement difference alignment strategy is adopted to complete visual-inertial system and GNSS joint initialization, and ESIKF is used to replace EKF to improve fusion precision; robust alignment of a local coordinate system and a map coordinate system is achieved through a single-frame geometric constraint accumulation-batch manifold alignment strategy; based on the reverse PnP, the current 3D point cloud and the historical 2D observation constraint are utilized to resolve the relative pose, the map matching result is used as observation to be fused with the GNSS or replace GNSS observation, the ESIKF loose coupling is utilized to eliminate accumulative errors, and continuous high-precision positioning in the GNSS failure scene is achieved.

The utility model discloses a water surface video monitoring device which comprises an installation vertical rod, a supporting rod is arranged on one side of the top of the installation vertical rod, a monitoring body is arranged on the top of one end of the supporting rod, an installation base is fixed to the bottom of the monitoring body, and connecting clamping rings are symmetrically installed on the bottom end face of the installation base. The connecting clamping ring is arranged outside one end of the supporting rod in a sleeving manner; through the designed installation assembly, the installation seat and the supporting rod can be conveniently connected in a limiting installation mode, operation is convenient and fast, the monitoring body is not prone to moving when a worker installs the monitoring body, the installation efficiency of the worker is conveniently improved, and practicability is good. And through the designed limiting assembly, the supporting rod and the mounting vertical rod can be conveniently connected in a limiting mode, mounting screw holes in the surfaces of flange plates at the ends of the supporting rod and the mounting vertical rod can be rapidly aligned, a worker can conveniently screw bolts into the mounting screw holes to achieve fixation, the mounting efficiency of the worker can be conveniently improved, and the practical effect is good.

The utility model discloses a lighter fuel adding device which comprises a base, a lifting component fixedly connected to the top of the base and a gas tank installed on the surface of the lifting component, a lighter body is arranged at the top of the base, and positioning structures located on the two sides of the lighter body are arranged at the top of the base. The transmission structure extrudes the swing rod, the swing rod swings with the pin shaft in the connecting block as the axis, when the positioning frame at the top end of the swing rod is arranged on the surface of the lighter body in a sleeving mode, the effect of extruding and positioning the lighter body is achieved, the lifting component drives the gas tank to descend, and inflation operation is conducted when the gas tank is communicated with the lighter body. The lighter body is extruded and fixed through the two structures with the fixed moving distance, the phenomenon that the lighter body slightly displaces when affected by vibration can be prevented, the lighter can be connected with the thin gas tank exhaust end in an aligned mode in the gas filling process, and the gas filling effect is guaranteed.

The utility model provides a pilot valve bank of a miniature excavator, which relates to the technical field of pilot valve banks of miniature excavators, and comprises a pilot valve bank body. By arranging a limiting device, when an excavator is controlled by using the pilot valve bank body, one end of an oil way pipe is propped against an overflow valve, and the other end of the oil way pipe is propped against the overflow valve; then the threaded block fixed at one end of the threaded rod is in threaded connection and screwed with the threaded ring block on the overflow valve, so that the oil way pipe is fixedly installed on the overflow valve, at the moment, after the threaded rod is manually held and screwed to a certain position on the threaded hole rod, the clamping block can be driven to move downwards and then clamped in the corresponding clamping groove, and the threaded ring block is limited and fixed; in this way, when the excavator is used, the whole excavator body vibrates when the excavator works, the threaded ring block at the connecting position of the overflow valve and the oil way pipe is not prone to slipping or loosening under long-time vibration, hydraulic oil is prevented from leaking, and the using effect of the excavator is improved.

The invention provides an improved grinding door which comprises a pipe wall, a bottom plate is fixedly connected to the outer wall of the pipe wall, four first bolts are installed on the upper surface of the bottom plate, the bottom plate and a pressing and fixing plate are connected through the first bolts, and the pressing and fixing plate and a manhole cover are connected through second bolts. The two fixing blocks are fixedly connected to the upper surface of the bottom plate, the pulleys are installed at the bottoms of the two sides of the pressing and fixing plate, and the sliding rails are installed between the pipe wall and the bottom plate, in the disassembly process, only several nuts need to be loosened, the manhole cover can be disassembled, people do not need to enter a mill to hang a mill door, and other work does not need to be considered. The sliding rail is installed outside the pipe wall, the manhole cover can be directly moved to the sliding rail to be placed after being lifted by a crane, time and labor are saved, and due to the fact that the supporting column on the side, close to the manhole cover, of the sliding rail is inclined, and the fixing blocks are installed on the two sides, the manhole cover can be rapidly aligned to be conveniently installed when installed.

The utility model discloses a multifunctional tool for lens film's pasting and dismounting, including the tool main part that middle frame board, lens film, surface seal membrane and bottom surface seal membrane constitute, have each through -hole in the middle frame board, have the lens film in each through -hole, and the inner wall bottom of through -hole extends to the hole center and forms the inner along the step of middle frame board, and the both sides of middle frame board are encapsulated through surface seal membrane and bottom surface seal membrane with lens film. The utility model has solved the problem of the risk of scratching the shell of the lens film pasting tool in the prior art and the low efficiency of dismounting the old film.

The utility model relates to the field of generator rotor, especially a generator rotor assembly convenient to installation, rotor assembly is equipped with installation on the rotating shaft, the both sides of rotating shaft all are seted up installation groove, and the both sides of rotor assembly all are seted up fixing seat above installation piece, and all are seted up the card cavity on fixing seat, the both sides of rotating shaft all are adaptively seted up the movable card piece above corresponding card cavity, and the both sides of fixing seat all are inserted and are used for locking screw of card piece. In the utility model, through the structure that spring promotes card piece and automatically card into card cavity, can realize the quick centering and preliminary fixation of rotor assembly and rotating shaft, and cooperate the locking mode of screw and screw groove, have realized the reliability and detachability of connection, are convenient for the later maintenance and adjustment, effectively solved the problem that the traditional interference fit is not reversible, the high scrappage rate and the complicated operation.

The invention discloses a diaphragm primary splitting machine correlation photoelectric adjusting device, and belongs to the technical field of correlation photoelectric adjusting devices, the diaphragm primary splitting machine correlation photoelectric adjusting device comprises a mounting plate and a boss arranged on one side of the mounting plate, an adjusting plate used for mounting a correlation photoelectric sensor is arranged on one side of the boss, and a positioning ring is slidably arranged on the side, close to the boss, of the adjusting plate; according to the device, the position of the adjusting plate can be finely adjusted in different directions, and the adjusting plate can be locked with the boss after each fine adjustment, so that the position of the adjusting plate is prevented from being changed, the whole adjusting process is continuous and stable, correlation photoelectric sensors at the two ends of the winding drum can be quickly aligned, and the detection accuracy is improved. The device is compact in structure, and a worker can complete micro-distance adjustment of the adjusting plate in different directions through an internal hexagonal wrench.

This utility model relates to a self-cleaning air inlet protection device and an air handling unit, including a main body assembly and a self-cleaning assembly. The main body assembly includes a first connecting member, a second connecting member, and a protective net. Both the first and second connecting members are cylindrical and connected by a snap-fit ​​structure. The protective net is hemispherical and connects to the second connecting assembly. The self-cleaning assembly includes multiple support rods, a drive shaft, an impeller, and a cleaning brush. The impeller drives the cleaning brush via the drive shaft to clean the convex surface of the protective net. This utility model's self-cleaning air inlet protection device can prevent debris from adhering and is easy to install and disassemble.

The invention relates to a testing device and a testing method, and relates to the technical field of well drilling blowout prevention tools. The testing device comprises a supporting piece, a clamping assembly, a driving assembly, a wrench assembly and a sensing piece. The clamping assembly is arranged on the supporting piece, and the clamping assembly is used for clamping a to-be-tested piece; the driving assembly is arranged on the supporting piece; the wrench assembly is arranged on the driving assembly, and the wrench assembly can open a target part of the to-be-tested piece under the action of hydraulic pressure; the sensing piece is used for sensing the torque of the wrench assembly and generating a corresponding sensing electric signal; wherein the driving assembly can drive the wrench assembly to move, so that the wrench assembly is aligned with the target part of the to-be-tested piece. According to the technical scheme disclosed by the invention, the test efficiency can be improved, the labor intensity is reduced, and the test success rate is improved.

This utility model discloses an electric torque-controlled nut tightening tool, relating to the field of electric nut tightening technology. It includes a gun body, a gun barrel fixedly connected to one side of the gun body, a gun head rotatably connected to the side of the gun barrel away from the gun body, a lithium battery snapped into the lower side of the gun body, a switch movably connected to the side of the gun body away from the lithium battery, a retaining ring connected to one side of the gun barrel, and an installation mechanism on one side of the retaining ring. This utility model, employing the above structure, installs multiple positioning components on the gun barrel. The positioning suction cups in the positioning components can closely adhere to the workpiece surface, providing support to the gun body from three different directions. This eliminates the need for the worker's manual strength to maintain gun body stability, significantly reducing the probability of gun body wobbling during operation. This allows the gun head to quickly and accurately align with the nut to be installed, reducing alignment adjustment time caused by wobbling and improving overall operating efficiency.

The utility model relates to the technical field of constructional engineering, in particular to an industrialized assembly type prefabricated wall. Comprising a wall body, protruding wall surfaces, U-shaped rods and inserting rods, the protruding wall surfaces are fixedly connected to the front side and the rear side of the wall body, the upper side and the lower side of the wall body are each provided with two square grooves, the U-shaped rods are connected to the bottom and the top of the wall body in a clamped mode, the two inserting rods are fixedly connected into the U-shaped rods, and the inserting rods are connected into the square grooves of the wall body in a clamped mode. The U-shaped rod and the insertion rod are arranged to conduct auxiliary installation on the prefabricated wall, the prefabricated wall can be rapidly aligned with the insertion rod, the installation efficiency of the prefabricated wall is improved, the insertion rod can be accurately in butt joint with a square groove of a wall body through clamping connection of the butt joint protruding block and the butt joint groove, manual auxiliary clamping connection is not needed, and the installation efficiency of the prefabricated wall is improved. And the connecting plates and the bolts are further arranged, the adjacent U-shaped rods can be connected, the U-shaped rods are firmer, the connecting clamping blocks are further arranged, the adjacent protruding wall surfaces can be connected, and the wall body can be reinforced.

The sleeve structure comprises a sleeve body and a screw rod, a through hole is formed in the outer portion of the sleeve body, a gasket is fixedly connected to the outer portion of the screw rod, an annular rail is fixedly connected to the bottom of the gasket, a ball is rotationally connected to the interior of the annular rail, and the ball abuts against the outer portion of the sleeve body. A mounting plate is rotatably connected to the exterior of the screw rod, a sliding groove is formed in the bottom of the mounting plate, a sliding block is slidably connected to the interior of the sliding groove, an arc-shaped clamping plate is fixedly connected to the bottom of the sliding block, and a tightening mechanism is mounted in the sliding groove. According to the device, the screw rotates in the screw hole to push the sleeve body to be accurately pushed, efficient, smooth and concentric installation of the bearing and the mechanical seal is achieved, the slidable arc-shaped clamping plates and the tightening mechanism are adopted, the device adapts to sleeves of different sizes, universality and adaptability are achieved, the requirements of various pump devices are met, and the left arc-shaped clamping plate and the right arc-shaped clamping plate are clamped in a balanced mode. Quick alignment is facilitated, and the mounting efficiency and precision are improved.

The invention relates to the technical field of ceramic processing, and discloses a ceramic embossment golden silk screen printing carving device which comprises a processing table used for placing a ceramic plate, a three-axis moving platform used for driving a carving knife to move in the X-axis direction, the Y-axis direction and the Z-axis direction is arranged above the processing table, and a transverse positioning mechanism and a vertical positioning mechanism are arranged on the three-axis moving platform. The transverse positioning mechanism and the vertical positioning mechanism clamp and limit the four ends of the ceramic plate in the moving process, it can be guaranteed that an included angle is formed between the carving knife and the ceramic plate while the four ends of the ceramic plate are clamped, and patterns carved by the carving knife can be accurately matched with the size of the ceramic plate conveniently; the problem that a carving pattern is not matched with a ceramic plate due to inaccurate tool setting is avoided, the positioning accuracy is improved through mechanical clamping and positioning, and repeated positioning and debugging of the carving tool are avoided.

The utility model relates to the conveying technical field discloses a plate material separation conveying device, include: frame is provided with the board and the feeding frame, the board is set up to the upper side and is inclined to set up, the board top side is connected with the supporting plate, the feeding frame is connected in the top side of board, the feeding frame is surrounded and is formed with the feeding groove of the notch up, conveying mechanism sets up in the feeding groove, conveying mechanism can along the left and right direction conveying, removes the mechanism and sets up on the frame, the mechanism has the first removal end that removes back and forth between the supporting plate with the feeding frame, the second removal end that can along the direction close or far from the feeding groove removes, the utility model will stack the plate material fast, stably and feed to the supporting plate, through the collaborative action of removal mechanism and conveying mechanism, realizes to the plate material high -efficiently and separates the Zhang and conveys to improve production and processing efficiency.

The utility model relates to the technical field of furniture processing, in particular to a punching device for furniture processing, which comprises a workbench, a sliding chute is arranged at the top of the workbench, and a movable plate is slidably connected in the sliding chute. A second electric push rod drives a pressing plate to press and position a wood plate, the adjustability of an extension plate enables some special-shaped plates to be effectively fixed, an electric perforating machine rotates and moves downwards to perforate the wood plate, a drilling groove is formed to achieve the effect of preventing a cutter from being collided, a crank drives a round pipe to rotate, the round pipe drives a screw to be screwed out, and the wood plate is fixed through the screw. The screw drives the movable plate to slide out of the sliding groove through the vertical plate, the scale marks are arranged on the front side and the rear side of the movable plate, the transverse movement distance of the wood plate, namely the hole distance between two hole positions, can be directly measured through the difference value between the scale marks and the initial zero point parts of the scale marks, and the wood plate does not need to be taken down to measure the hole distance and then conduct positioning and punching. Therefore, the drill bit can be quickly aligned with the preset hole position, and the punching efficiency is improved.