42 results about "Device Knife" patented technology

The invention relates to the technical field of PCB machining, and provides a tool compensation machining method and PCB machining device.The tool compensation machining method is used for machining a plate, machining of the plate has multiple stages, and the tool compensation machining method comprises the steps that the initial tool diameter of a tool before machining is detected, and an initial tool compensation value is generated; according to the initial cutter compensation value, a cutter is driven to execute first-stage machining; detecting the actual cutter diameter of the cutter and generating a first cutter compensation value under the condition that the cutter completes the machining of the first stage and the cutter is lifted; and according to the first cutter compensation value, the cutter is driven to execute second-stage machining. According to the method, self-adaptive dynamic compensation of tool abrasion can be achieved, the machining precision is guaranteed, and the machining quality and the automation level are improved.

The utility model discloses a cutter machining module and machining equipment. The cutter machining module comprises a first driving mechanism, a second driving mechanism and a cutter. The second driving mechanism is connected to the first driving mechanism and can be driven by the first driving mechanism to slide in the vertical direction, and the arrangement direction of the second driving mechanism and the arrangement direction of the first driving mechanism intersect in the vertical direction; the cutter is connected to the second driving mechanism and can be rotated by the second driving mechanism around an axis parallel to the vertical direction. According to the technical scheme, the cutter can be used for sliding machining, rotating machining and lifting machining, and therefore the workpiece machining modes of machining equipment are enriched.

The invention relates to the technical field of automatic chamfering equipment, in particular to tool changing type automatic chamfering equipment for scraper strip machining, and relates to the technical field of automatic chamfering equipment. The tool changing type automatic chamfering equipment comprises a numerical control box and a plurality of tools, and a pair of transverse electric sliding rails is fixedly installed on the upper wall face in the numerical control box; according to the tool changing type automatic chamfering equipment for scraper strip machining, the bearing blocks and the bearing grooves are designed in the tool magazine box, so that multiple tools of different specifications can be contained, the 180-degree switching function of the automatic tool changing device is matched, the tool changing efficiency is improved, and the tool changing efficiency is improved. The special chamfering machine tool can quickly respond to the machining requirements of scraper strips of different specifications, special tools or complex adjusting equipment do not need to be replaced, the product model changing time is greatly shortened, the problem that a traditional special chamfering machine tool is insufficient in flexibility is solved, and the special chamfering machine tool is suitable for the multi-variety and small-batch production mode of the modern manufacturing industry.

The utility model provides an iron template rapid cutting guide ruler which comprises a main plate, a rotating rod is rotatably installed at one end of the main plate, a ruler body is rotatably connected to one end of the rotating rod, an iron template auxiliary cutting assembly is slidably installed on one side of the main plate, a containing groove is formed in one end of the upper surface of the main plate, and through holes are formed in one side of the main plate and one side of the ruler body. And limiting clamping blocks are tightly inserted into the through holes. Through the design of a rotating rod, a limiting clamping block and an iron template auxiliary cutting assembly, when a worker cuts an iron template, the distance between the iron template auxiliary cutting assembly and a ruler body is adjusted, so that the distance between the iron template auxiliary cutting assembly and the ruler body can accommodate cutting equipment, and then a blade of the cutting equipment is tightly attached to the guide edge of the ruler body for cutting; the cutting precision can be effectively improved, it is ensured that the cutting straightness and size meet the expected standard, the mainboard is placed at one end of the position needing to be cut, the mainboard is attracted to the surface of the iron template through the magnetic attraction block, and therefore fixing can be completed without manual pressing or clamp locking.

The invention discloses a special-shaped rotary part clamp based on a machining center and a using method of the special-shaped rotary part clamp. The clamp comprises a clamp body, a pressing plate and a positioning block. A pressing plate is arranged at the top of the clamp main body; and a positioning block is also arranged on the clamp main body. The using method comprises the following steps that A) the clamp main body is matched and positioned with a four-axis turntable pin through the positioning hole, and is fixed by a screw through the M8 threaded connection hole; b) an inner cavity of the part is in transition fit with a supporting boss, air pressure is exhausted through a flow guide exhaust hole, and stable attachment is ensured; c) matching the clamping groove of the positioning block with the outer boss of the part, and inserting the pin into the positioning identification hole to realize circumferential positioning; d, cylindrical bosses at the two ends of the pressing plate are inserted into the guide positioning holes, so that the middle of the face of the pressing plate is attached to the end face of the part and locked through M4 screws, and E, machining equipment is started, and a tool can smoothly conduct milling or drilling machining through a tool withdrawal groove area.

A technology was needed that could supply a sufficient amount of liquid to the area where the blade was processing the workpiece. [Solution] The processing apparatus comprises a blade, a rotating mechanism rotatable around a rotation axis, and a holding member. The blade is mounted on the rotating mechanism by the holding member, which clamps a portion of the blade. The blade has a plurality of recesses, each smaller in depth than the blade's thickness, and each of the recesses extends from the rotation axis side to the outer circumference, spanning the portion clamped by the holding member. Liquid is supplied from the outside to a space that is at least partially surrounded by the holding member, on the rotation axis side of the position where the portion of the blade is clamped. The liquid supplied to the space is injected into each of the plurality of recesses on the rotation axis side of the portion of the blade.

The invention provides a row type tool magazine suitable for aluminum part polishing and cutting and with automatic tool changing, which comprises polishing and cutting equipment and a tool magazine unit, the tool magazine unit is mounted in the polishing and cutting equipment, the tool magazine unit comprises a supporting top plate and supporting side plates, and the bottom of the supporting top plate is connected with the two supporting side plates which are symmetrically distributed; the tool magazine unit further comprises a rotary moving module and an avoiding supporting module, the rotary moving module is used for containing the grinding and cutting tools and correspondingly adjusting the position of the single grinding and cutting tool magazine, and the avoiding supporting module is used for conducting auxiliary supporting on the grinding and cutting tool magazine. The angle of the tool apron is adjusted through the rotating assembly, so that the grinding cutting tool is in a horizontal state when the tool changing operation is not carried out, the grinding cutting tool is in a vertical state when the tool changing operation is carried out, and when the grinding cutting tool is horizontally placed, the tool apron can conveniently place and support the grinding cutting tool, and the acting force of the grinding cutting tool on the tool apron is dispersed; the service life of the tool apron is prolonged.

The utility model discloses a tool magazine of tool arranging equipment. The tool magazine of the tool arranging equipment comprises a box body, the front side of the box body is open, a plurality of first chains and a driving mechanism used for driving the first chains to rotate are arranged in the box body, a plurality of supporting rods used for hanging blades or space rings are arranged on the first chains, and a pushing mechanism is arranged in the box body. The pushing mechanism is located on the rotation track of the first chain and pushes the blades or the space rings on the supporting rod to the row tool mechanical arm. The utility model solves the problems of high labor intensity and low working efficiency in the prior art.

This utility model discloses a green ceramic tile chamfering machine, including a shell and a base plate. The bottom of the shell is connected to the base plate. A tension plate is provided on the top of the base plate, and a motor is provided on the tension plate. A synchronous belt is provided on the side of the motor. A photoelectric switch is provided on the other side of the tension plate. A guide rail plate is provided inside the photoelectric switch, and a linear guide rail is provided outside the guide rail plate. A blade holder is provided at the bottom of the linear guide rail, and a blade is installed on the top of the blade holder. This green ceramic tile chamfering machine, by installing a motor inside the machine body and driving a synchronous pulley and synchronous belt outside the motor, and starting the machine by pressing a foot switch, causes the blade on the top of the blade holder to complete the chamfering along the linear guide rail. This process produces no dust, thus making the product more adaptable and easier to use.

The utility model provides a blade fixing seat of cutting equipment, which belongs to the technical field of cutting equipment and comprises a supporting assembly, a fixing part, a supporting part inserted on the side wall of the fixing part, a shaft sleeve fixedly connected in the middle of the supporting part, a guide shaft inserted in the middle of the shaft sleeve and a fixing plate fixedly connected at the end part of the guide shaft, the blade installation assembly comprises a supporting plate fixedly connected to the side wall of the fixing plate, a sliding piece installed on the side wall of the supporting plate in a sliding mode, a clamping block fixedly connected to the end of the sliding piece and a positioning block installed on the side wall of the supporting plate in a matched mode. The blade clamping device has the advantages that the supporting assembly and the blade installation assembly are used in cooperation, the blade can be accurately positioned according to different cutting tasks and workpiece requirements, the cutting precision and quality are improved, stable clamping of the blade is achieved, it is guaranteed that the blade cannot loosen or deviate in the cutting process, and the cutting efficiency is improved. And the cutting stability and reliability are ensured.

The utility model discloses a tool for disassembling and assembling a knife edge of fuel gas pressure regulating equipment, which relates to the technical field of maintenance tools of the fuel gas pressure regulating equipment, and is characterized by comprising a main pipe barrel and a holding rod which is arranged on the main pipe barrel and is vertical to the main pipe barrel, and two groups of transverse stretching plates are symmetrically arranged on two sides of the end part of the main pipe barrel; a clamping block matched with a notch of a gas valve knife edge base is arranged at the end, away from the main pipe barrel, of the transverse extending plate. According to the utility model, the clamping block matched and clamped with the notch part of the knife edge seat is arranged, so that the knife edge seat can be rotationally dismounted by rotating the main pipe cylinder, the dismounting efficiency is improved, and the risk of damage to equipment parts is also avoided.

The utility model relates to a tool bit device of novel multifunctional shearing equipment, and belongs to the technical field of sample preparation shearing equipment in laboratories. According to the technical scheme, a punching die bushing (2) is filled in a hollow core position of a lower knife edge (1), a to-be-prepared sample (3) is inserted into the punching die bushing (2), a fixed-length regulator (4) is welded on the rear portion of the lower knife edge (1), and the bottom of the lower knife edge (1) is connected with a sample receiving box (6) through a sample outlet sliding way (5). The utility model has the beneficial effects that the hollow core of the lower knife edge is filled with the stamping die bushing with four through round holes, so that the sample preparation quantity is increased, and meanwhile, the fixed-length regulator is arranged in front of the lower knife edge to realize quantitative shearing; the number of sheared samples can be increased, meanwhile, various samples can be quantitatively prepared, the replacement frequency of the tool bit can be reduced, on the basis of completely meeting the production requirement, the fund for purchasing new equipment is saved, and the consumption cost of spare parts is greatly reduced.

The utility model relates to the technical field of food processing, in particular to a beef grinder for preparing beef extract, which comprises an upper processing box body, a fixing shell is fixedly connected to the middle of the upper end of the upper processing box body, a driving device is fixedly connected to the middle of the upper end of the fixing shell, and a limiting groove is formed in the middle of the rear end of a lower processing box body. Supporting legs are fixedly connected to the four corners of the lower end of the lower treatment box body, lower plates are fixedly connected to the left portion and the right portion of the lower end of the lower treatment box body, and extrusion devices are fixedly connected between the left ends and the right ends of the two lower plates. According to the beef crusher for preparing the beef extract, the driving device and the crushing assembly are cooperated, the crushing efficiency and the granularity uniformity are improved through the inclined crushing cutter and the blade-replaceable crushing assembly, meanwhile, the problem that blades of existing equipment are prone to abrasion is solved, and the durability of the blades and the adaptability of the equipment to different beef textures are enhanced.

The invention relates to the technical field of battery pack crushing equipment, and discloses a dismounting mechanism and a dismounting method for a blade of the battery pack crushing equipment. In the process that the dismounting module moves from the starting point stop position to the terminal point stop position, and when a blade installed at any installation position needs to be dismounted, the sliding blocking module corresponding to the installation position can block continuous movement of the dismounting module, and the reverse blocking module is driven to block reverse movement of the dismounting module; when the dismounting module stays at the mounting position, the blade mounted at the mounting position can be dismounted, after the blade mounted at the mounting position is dismounted, the sliding blocking module and the reverse blocking module do not block the movement of the dismounting module any more, and the dismounting module can continue to move towards the terminal staying position; and therefore, the blade dismounting process can be sequentially carried out on the mounting positions where the blades need to be dismounted, so that the blade replacement efficiency is improved, and the battery pack crushing efficiency is guaranteed.

The application discloses a kind of composite material processing cutter wear monitoring methods based on MC-SBULSTM algorithm, comprising: S1, the working data of end effector in the machining process in robot machining system is collected;S2, detection input and detection target are formed initial sample data set;S3, initial sample data set is labeled with evaluation index, and sample data set is formed;S4, the prediction network is trained using sample data set, to obtain cutter wear monitoring model for predicting tool wear in machining process;S5, the working data in robot machining system is input to cutter wear monitoring model, to obtain the wear value of cutter in current robot machining system.The application also provides a kind of composite material processing cutter wear monitoring system.The method provided by the application can solve the problem of tool state monitoring of movable airfoil drilling equipment in wing assembly field in industrial production, which needs manual shutdown, and the monitoring effect is too dependent on manual experience and affects drilling.

The utility model belongs to the technical field of automatic lathes, and particularly relates to a cutter positioning mechanism and automatic machining equipment. The cutter positioning mechanism comprises a cutter handle and a storage assembly, a first positioning groove and a second positioning groove are formed in the side wall of the cutter handle, and a positioning hole is formed in the inner wall of the first positioning groove; the storage assembly comprises a positioning sensor, a first positioning block and a supporting frame. The supporting frame is provided with a first supporting groove used for supporting a knife handle. A first positioning part is arranged on the first positioning block, a containing hole is formed in the first positioning part, and the positioning sensor is installed in the containing hole; the knife handle is stored in the first supporting groove, the first positioning part is inserted into the first positioning groove, and the positioning sensor detects whether the knife handle in the first supporting groove deviates or not by detecting the positioning hole. According to the tool holder positioning device, when the positioning sensor detects the positioning hole, it is indicated that the tool holder is accurately placed on the supporting frame, and the mechanical arm can move and take the tool holder from the supporting frame and accurately install the tool holder on the main shaft of the lathe.

The utility model relates to the field of red date slicing, in particular to a slicing device for red date processing, which comprises a fixing frame. The bottom of the fixing frame is fixedly connected with a bottom plate, the front end of the fixing frame is rotatably connected with a blade column, the right end of the fixing frame is rotatably connected with the rotating column, a water conveying groove is formed in the rotating column, a plurality of spray heads are arranged at the bottom of the rotating column, and the left end of the rotating column is fixedly connected with a first motor; the output end of the motor I is fixedly connected with a rotating rod; the motor I is used for driving the rotating rod to rotate; a cleaning agent is uniformly sprayed to the surface of the slicing column through the spray head, meanwhile, the flexible cleaning strips are accurately embedded into gaps of the blades, adhered pulp and sugar residues are scraped, and the problems that the gaps of the blades and bearing parts of traditional equipment are difficult to clean and sanitary dead corners are prone to breeding can be effectively solved through a spraying-mechanical linkage cleaning mechanism. The cleaning efficiency is improved, the food safety risk is remarkably reduced, and the slicing quality consistency is guaranteed.

The utility model relates to the technical field of cutter laser cladding, and particularly discloses cutter laser cladding tool equipment, a cutter is mounted in a cutter mounting seat on a rotating worktable, a heating assembly in a cutter heating mechanism is used for heating the cutter in the cutter mounting seat, preheating before laser cladding of the cutter can be realized, and the laser cladding efficiency of the cutter is improved. Heating and heat preservation are achieved in the laser cladding process, slow cooling is achieved after laser cladding is completed, and temperature control over the tool is achieved in the whole process, so that the defect that due to the fact that heat dissipation of a tool base body is too fast, the temperature gradient between a laser cladding layer and the tool base body is too large, and the coating cracks is overcome; and the rotary workbench is adopted to drive the cutter to rotate to a proper position, so that the laser cladding head can conveniently carry out laser cladding on the cutting edge of the cutter, and the working efficiency and precision of laser cladding are improved.

A garlic excavator with retractable cutters relates to the field of garlic harvesting equipment and comprises a chassis, a walking unit, a power unit, a cutter rest, the cutters and a pushing handle. An extension frame is arranged at one end of the chassis, a tool rest is hinged in the extension frame, a tool is hinged in the tool rest, and the end of the tool is connected with a power mechanism through an eccentric rocker; a working posture positioning pin shaft is arranged behind the extension frame, a positioning hole is formed behind the knife rest, and the positioning hole and the working posture positioning pin shaft are correspondingly arranged; and a lifting handle is also arranged on the knife rest. According to the utility model, the problems that the working postures of the cutter part of the garlic harvesting equipment in the prior art cannot be switched, the action is continuous in the steering process, and the steering resistance is increased are solved, the flexible switching of the working postures of the cutter is realized, the steering resistance is reduced, and the equipment is more convenient to stop.

The application discloses a tool holder clamping structure and machining equipment, the tool holder clamping structure includes the tool holder body connected with the output shaft, the tool holder body is provided with a through hole, one end of the through hole is slidably connected with a collet, the collet is provided with a clamping hole, the other end of the through hole is slidably connected with an extension assembly, one end of the extension assembly is connected with the collet, the other end of the extension assembly is rotatably connected with a rotating pin, an adjusting hole is radially arranged on the hole wall of the through hole, an adjusting assembly is arranged in the adjusting hole, the adjusting assembly can correct the position of the collet to compensate the accuracy. In the process of tool changing, the rotating pin is rotatably connected with the extension assembly, the rotating pin does not rotate when the collet rotates, so that the tool changing assembly and the output shaft do not interfere with each other, that is, the output shaft can drive the collet to rotate slowly at this time, the influence of gravity, insufficient precision of the manipulator and other factors is overcome, the axis of the tool can gradually coincide with the axis of the collet, and the installation precision of the tool is improved.

The utility model discloses a hardware processing equipment tool quick replacement device belongs to tool quick replacement technical field, it includes the fixed frame, the fixed frame inside one end swing installation has the screw rod, one end fixed mounting of screw rod has the control bad, and the outer wall screw thread connection of screw rod has the sliding block, and the bottom fixed mounting of sliding block has the connecting block, and the one side mounting of connecting block has the fixed bolt. This hardware processing equipment tool quick replacement device, pull the handle and drive the telescopic link to move to the disc in the middle, and the telescopic link of both sides moves and extrudes the positioning rod, causes the positioning rod to extrude the elastic member and move upward, and the disc in the middle of telescopic link is separated from the clamping block by pulling the handle outward, and the telescopic link is clamped to the slot in the tool protection cover, and the clamping block is clamped to the disc in the middle of telescopic link, and the installation of tool is discarded through bolt piece cooperation pressure ring, and the mode of cooperation of telescopic link and spring is used to replace and fix tool, improves the convenience of operation, and reduces the work burden of worker.

The utility model relates to the field of tool replacement of numerical control equipment, aims to solve the problems of poor mounting precision and low mounting efficiency due to manual operation during tool replacement of existing numerical control equipment, and provides tool replacement equipment. The tool changing equipment comprises a tool magazine, a clamping assembly and a transferring assembly, and the tool magazine is used for storing tools. The clamping assembly comprises a first clamping piece, and the first clamping piece is used for clamping the tool holder. The transferring assembly comprises a second clamping piece, and the second clamping piece is used for clamping the cutter. And the transferring assembly is movably arranged between the tool magazine and the transferring assembly, so that the transferring assembly can clamp the tool at the tool magazine and carry the tool to the clamping assembly, the second clamping piece is in positioning fit with the tool holder, and the tool is installed on the tool holder. The tool magazine mounting device has the beneficial effects that the mounting precision is high, the tool can be automatically mounted to the tool holder from the tool magazine, and the mounting efficiency is high.

The double-station four-spindle spherical surface machining device comprises a lathe bed, a double-procedure design is adopted, the lathe bed is divided into a first procedure area and a second procedure area according to procedures, and each procedure area is provided with two spindles and two tool turrets; a mechanical clamp is used for clamping the balls for machining, stable clamping of the balls can be guaranteed, a plurality of balls can be machined at the same time, after a cutter reaches the set machining service life, the cutter can be rapidly replaced for continuous machining, and a machining equipment cutter bar is of a size-adjustable PSC connector rapid assembling and disassembling structure. And the cutter clamping mechanism adopts an eight-cutter-position automatic cutter tower, so that the production efficiency is greatly improved.

According to the blade surface treatment method provided by the invention, 1, 3-bis (chloromethyl) tetramethyldisilazane is adopted as a liquid A for forming a base film, on one hand, the liquid A can form a stable covalent bond with the blade, and on the other hand, the active chloromethyl end of the liquid A can provide rich reaction sites for a honeycomb film layer, so that chemical bonding of the film layer is promoted, and the service life of the blade is prolonged; carbonizable polyvinylpyrrolidone and hexadecyl trimethyl ammonium bromide are adopted as template agents, a compact hierarchical pore structure can be provided, a carbon-silicon composite structure can be formed, a mixture of perhydropolysilazane and polyhedral oligomeric silsesquioxane is adopted before final film forming, and the brittleness defect of pure SiO2 can be fully overcome; and the prepared coating is high in stability and strong in adhesive force, and can meet the requirements of high-end fields or precise high-speed numerical control equipment tool bits.

The invention discloses a cutter core-replaceable perforating machine, which comprises a mounting base, a cutter core-replaceable unit, a control handle, an elastic reset assembly, a driving transmission mechanism and an iron ring pressing assembly, and solves the problems that the cutter core of the existing equipment is inconvenient to replace, the function is single and the structure is bloated. The replaceable cutter core unit is matched and positioned with the mounting sinking groove of the mounting base through the outer contour of the bottom, so that tool-free quick disassembly and replacement are realized; the driving gear is meshed with the transmission element with the transmission meshing hole, rotation motion of the control handle is converted into vertical punching force, automatic reset of the handle is achieved in combination with the elastic reset assembly, and the height of the whole machine is reduced in cooperation with the limiting assembly. The initial position of a press-fit fixing plate in the iron ring press-fit assembly can be adjusted so as to adapt to binding iron rings of different specifications, and the punching and ring pressing functions are integrated. Through the structural design, second-level replacement of the cutter core is achieved, operation is labor-saving and smooth, the structure is compact, and the multi-scene efficient punching and binding requirements of office files, artware and the like are met.

The utility model relates to the technical field of cutter replacement of cutting equipment, and discloses a quick cutter replacement mechanism for cutting equipment, which comprises a rotating disc, a mounting column is fixedly connected inside the rotating disc, a cutter head is arranged on the outer side of the mounting column, and a clamping port is arranged on the surface of the mounting column. According to the rapid tool changing mechanism for the cutting equipment, through the arrangement of a limiting assembly, when a cutter head is replaced, a rotating block is rotated, the rotating block rotates to drive an inserting rod to move, at the moment, a connecting spring is in a compressed state, the inserting rod is pulled out from the interior of a clamping opening, a mounting disc can be detached from a mounting column, and the cutter head is replaced; the replaced cutter head and the replaced mounting disc are both inserted into the mounting column, the rotating block is rotated again, the connecting spring drives the inserting rod to reset, the inserting rod is inserted into the mounting column, and the cutter head is fixed, so that the device can complete replacement of the cutter head in a short time, the downtime is shortened, and the production efficiency is improved.

The utility model discloses an adjustable knife rest of a cutting machine. In order to solve the problems that a tool rest of existing cutting equipment is fixed, the installation precision of a tool bit is affected by errors of a connecting hole and a fastener, the parallelism error of a cutting edge and a workbench is caused, and the material cutting yield is reduced, a solution is provided. The adjustable knife rest comprises a mounting frame connected with a cutting equipment driving device, a pair of independent connecting frames are arranged on the mounting frame in a sliding mode, a stamping knife is fixed to the connecting frames, cutting edges are arranged below the stamping knife, and elastic elements are arranged between the connecting frames and the mounting frame. The elastic element can compensate the parallelism error of the blade and the working table, all points of the blade are ensured to make uniform contact with materials, and the yield is increased. Meanwhile, the pin shaft can be locked in the position of the limiting hole through the limiting structure, the height of the blade can be adjusted, fine adjustment of the height between the cutter and the working table is achieved, and different cutting depth requirements are met.

The utility model discloses a tool turret structure and machining equipment and system, and relates to the technical field of machining, and the tool turret structure comprises a tool turret, a first tool, a power head module and a first signal acquisition module. The power head module can form stable direct current to charge an electric quantity assembly of the first signal acquisition module, and the electric quantity assembly stably supplies power to other parts of the first signal acquisition module, so that physical information of the first cutter is acquired in the machining process, and the process of charging by interrupting the machining process is avoided; the machining efficiency and precision are effectively improved, and integration and light weight of the structure are achieved; the utility model further discloses machining equipment. The tool turret structure is arranged on the equipment body. The utility model further discloses a machining system, digital signals can be converted into analog quantity signals, the analog quantity signals are transmitted to a machine tool controller to push closed-loop control, and technical guidance is provided for visualization and intelligentization of machining production.

The invention belongs to the technical field of anti-maloperation devices, and particularly relates to an anti-maloperation safety device based on a disconnecting link of a four-bar linkage transmission structure of GIS equipment. Comprising a large-angle support, a small-angle support and an adjusting fastening rod, the large-angle support is composed of a limiting bent plate and a fastening connecting plate connected to the end of a horizontal transverse plate of the limiting bent plate, the overall structure of the small-angle support is the same as that of the large-angle support, and the bending angle of the small-angle support is smaller than that of the large-angle support. The sum of the bending angles of the two parts is 180 degrees; the two fastening connecting plates at the ends of the large-angle support and the small-angle support are connected through an adjusting fastening rod. The method for limiting the position of the transmission connecting rod is adopted, the GIS disconnecting switch and grounding knife switch transmission connecting rod is physically locked, misoperation caused by incorrect transmission acceptance inspection of a newly rebuilt and expanded GIS equipment knife switch or accidental touch of personnel is effectively solved, and the safe operation capacity and the power supply reliability of GIS equipment are remarkably improved.

This invention relates to a laser selective melting apparatus and method for printing small cross-section parts, belonging to the field of metal additive manufacturing. It includes: a forming cavity (1), a powder spreading mechanism (2), a forming table (3), a lifting mechanism (4), a powder sieving mechanism (5), a conveying mechanism (7), a lifting mechanism (8), and an upper powder feeding mechanism (9); the forming cavity (1) is equipped with the powder spreading mechanism (2), and the forming table (3) is located below the powder spreading mechanism (2); the top of the lifting mechanism (4) is connected to the forming cavity (1), and the bottom of the lifting mechanism (4) is connected to the powder sieving mechanism (5); the output end of the powder sieving mechanism (5) is connected to the conveying mechanism (7), the powder outlet of the conveying mechanism (7) is connected to the powder inlet of the lifting mechanism (8), and the powder outlet of the lifting mechanism (8) is connected to the upper powder feeding mechanism (9); by designing the equipment's tool holder and substrate, powder spreading areas of different sizes and corresponding substrates can be obtained, improving powder utilization efficiency and achieving more efficient printing.