28results about How to "Controlled contraction" patented technology

The present invention belongs to the technical field of triangular needle processing, and discloses a triangular needle electric discharge processing device, including a fixed seat, a rotary table, a rotary motor, a needle-up mechanism, three groups of grinding and punching mechanisms and a needle-down mechanism, the rotary table is rotatably connected to the top of the fixed seat and connected to the rotary motor, the needle-up mechanism, three groups of grinding and punching mechanisms, and the needle-down mechanism are sequentially distributed in a circular array outside the rotary table, and eight groups of needle clamping mechanism groups distributed in a circular array are provided on the rotary table, each group of needle clamping mechanism groups includes at least one needle clamping mechanism, and each needle clamping mechanism includes a clamping seat and a needle clamping device. The present invention distributes the needle-up mechanism, three groups of grinding and punching mechanisms and the needle-down mechanism in a circular array outside the rotary table, and integrates the functions of needle-up, three-faceted punching and grinding, and needle-down, without the need for frequent transfer between multiple sets of equipment, simplifies the operation process, shortens the processing cycle, and improves production efficiency.

The invention relates to the technical field of investment casting of hollow castings, in particular to a low-deformation high-strength ceramic core and a preparation method thereof.The low-deformation high-strength ceramic core comprises ceramic core powder, and the ceramic core powder comprises, by mass, 30-85% of high-temperature calcined high-bauxite powder, 10-50% of electric smelting mullite powder and 1-20% of alumina powder. According to the ceramic core and the preparation method thereof disclosed by the invention, the ceramic core prepared by accurately proportioning the high-temperature calcined high-alumina bauxite powder, the electrically-fused mullite powder and the alumina powder and combining the synergistic effect of the toughening agent, the pore forming agent and the plasticizer has relatively low deformation and relatively high high-temperature strength, and can meet the requirements of hollow directional / single-crystal castings and polycrystalline hollow castings which are poured at high temperature.

The utility model provides a silicon dioxide powder bagging mechanism which comprises a conveying cylinder used for being installed at the bottom of a silicon dioxide powder storage bin, a screw rod used for pushing silicon dioxide powder to move is rotatably installed in the conveying cylinder, and one end of the screw rod is fixedly connected with the output end of a motor. The end, close to the motor, of the conveying cylinder is fixedly connected with an end cover, the motor is fixedly connected with the end cover, the end, away from the end cover, of the conveying cylinder is provided with a vertically-arranged discharging pipe used for being inserted into a woven bag, and the discharging pipe is sleeved with an expansion air bag ring which is fixedly connected with the discharging pipe and used for supporting a bag opening of the woven bag. The silicon dioxide powder sealing device has the advantages that the bag opening of a woven bag storing silicon dioxide powder is sealed, and the silicon dioxide powder is prevented from diffusing at will.

The invention relates to the field of electronic component materials, in particular to optimized precious metal palladium-silver inner electrode paste for MLCC high frequency and a preparation method of the optimized precious metal palladium-silver inner electrode paste. The invention relates to optimized noble metal palladium-silver inner electrode slurry for MLCC high frequency. The slurry comprises palladium-silver alloy powder, an organic carrier, an inorganic additive and a dispersing agent, the organic carrier can be ethyl cellulose, hydrogenated rosin and diethylene glycol monobutyl ether acetate; the inorganic additive at least comprises one of zirconium oxide, aluminum oxide and barium titanate; the dispersing agent comprises at least one of ammonium stearate, ammonium oleate and ammonium linoleate and at least one of polyethylene glycol octyl ether ester acid amine, polyoxyethylene polyoxypropylene amine ether, polyethylene glycol octyl acid amine salt, polyoxyethylene lauryl ether citrate and polyoxyethylene polyether fatty acid amine. The problem of particle aggregation in the slurry can be effectively relieved, the fluidity of the slurry is optimized, the overall uniformity of the slurry is improved, and the performance of the MLCC is enhanced.

The utility model relates to the technical field of logistics box equipment, in particular to a multifunctional logistics box with a protection function, which comprises a box body, an electric push rod is fixedly connected to the bottom surface of the box body, a movable frame is fixedly connected to the telescopic end of the electric push rod, and a supporting rod is movably connected to the top surface of the movable frame in a penetrating manner. Universal wheels are fixedly connected to the bottom ends of the supporting rods, a sleeve pipe is fixedly connected to the surface of the top of the movable frame in a penetrating mode, an up-down pipe is in threaded connection with the surface of the inner side of the sleeve pipe, a grounding plate is movably connected to the surface of the bottom of the up-down pipe through a bearing, and an elastic arc piece is fixedly connected to the surface of the inner side of the box body. Through the arrangement of the electric push rod, the movable frame, the supporting rod, the sleeve pipe, the upper pipe, the lower pipe and the grounding plate, the box body can be conveniently moved and stably placed at a required position, and the applicability is better.

The present application provides a low-temperature wind tunnel contraction section shell assembly device and contraction section shell assembly method, wherein the circular positioning plate is installed on the center of the upper surface of the positioning platform and coincides with the center of the positioning platform; the circular ring plate is installed on the outer periphery of the upper surface of the positioning platform and is arranged concentrically with the circular positioning plate; the circular tube is vertically installed in the middle of the circular positioning plate; multiple layers of annular ribs are arranged on the inner circumferential wall of the contraction section shell at intervals along the direction of the central axis of the contraction section shell and are perpendicular to the central axis; each group of supporting structures is installed in the corresponding cavity of each layer of annular ribs, and one end is connected to the outer circumferential wall of the circular tube, and the other end is connected to the inner circumferential wall of the annular ribs; each group of longitudinal ribs is arranged between two adjacent layers of annular ribs at intervals along the circumference of the annular ribs, and the two ends are respectively connected between two adjacent layers of annular ribs. The present device and method can realize high-precision assembly of multi-component complex curved surface shells and ensure the accuracy of the inner surface of the contraction section shell.

The invention relates to a testing device for a hydrogenation adjusting system, and the device comprises a middle pipeline which is internally fixedly provided with a fixed ring; the one-way valve is adhered to the interior of the middle pipeline, and the one-way valve is located in the left side direction of the fixing ring; and the connecting vertical rods are fixed in the middle pipeline, the connecting vertical rods are located in the left side direction of the one-way valve, and the two connecting vertical rods are symmetrically arranged about the horizontal central axis of the middle pipeline. The testing device for the hydrogenation adjusting system has the beneficial effects that the testing device for the hydrogenation adjusting system has a dual flow velocity detection function, data detected by the device are more accurate, the backflow prevention mechanism of the device can prevent gas backflow from causing problems on detection of the device, meanwhile, the device is provided with the telescopic pipeline, connection of the device is facilitated, and the testing efficiency is improved. And the connecting part of the other end of the equipment has a sealing function, and a display structure and an operation structure of the equipment can be stored, so that an electric appliance mechanism can be protected when the equipment is not used.

The embodiment of the present application provides a restraining device, which can improve the use performance of the restraining device. The restraining device is applied to a battery monomer, and the restraining device comprises: a plurality of groove structures arranged at intervals along a first direction, wherein the groove structure comprises opposite first and second surfaces perpendicular to the first direction; a plurality of air bag structures, wherein the air bag structure comprises a first air bag structure and a second air bag structure, at least part of the first air bag structure and the second air bag structure is accommodated in the groove structure, one side of the first air bag structure facing the first surface is fixedly connected with the first surface, one side of the second air bag structure facing the second surface is fixedly connected with the second surface, the plurality of air bag structures are arranged in one-to-one correspondence with the plurality of groove structures, a first accommodating cavity is formed between the first air bag structure, the second air bag structure and the groove structure, and at least part of the battery monomer is accommodated in the first accommodating cavity.

The invention discloses a preparation method of a porous metal long and thin tube, which comprises the following steps: dissolving metal powder and an organic high-molecular polymer in a solvent according to a certain proportion, mixing to form bubble-free and uniform slurry with certain viscosity, extruding from a mold under the driving of certain power by adopting an extrusion-immersion molding technology based on the principle of a phase inversion method, and carrying out extrusion molding to obtain the porous metal long and thin tube. And immersing into the exchange liquid, curing, winding by using a winding wheel, and collecting in a roll to obtain the required blank. The long-chain interaction force between high-molecular organic matters is utilized, a blank body has high obdurability, during sintering, a sectional sintering mode is adopted, the blank body is placed in a material boat and coiled into a spiral shape, and the porous metal thin tube with the high length-diameter ratio can be obtained through straightening after sintering is completed. The outer diameter of the porous metal long and thin tube prepared by the method is 1-10mm, the wall thickness is 1-3mm, the length of a finished product can reach more than 2m, the average pore diameter is 0.1-10mu m, and the relative air permeability can reach more than 100m < 3 > / (h.KPa.m < 2 >).

The invention discloses shaping equipment for mechanical casting parts, and particularly relates to the technical field of mechanical casting, the shaping equipment comprises a shaping table, a grinding frame is fixedly mounted on the shaping table, a grinding motor is mounted on the grinding frame, a rod grinding knife is fixedly mounted at the output end of the grinding motor, and a rotating motor is fixedly mounted on the shaping table; a rotating shaft is fixedly installed at the output end of the rotating motor, a placing frame is fixedly installed at the top end of the rotating shaft, lifting control tables are fixedly installed at the two ends of the placing frame, hydraulic rods are installed in the lifting control tables, a piece carrying control mechanism is fixedly installed on the hydraulic rods, and a rotating shaft fixing mechanism is installed on the shaping table. According to the device, multiple sets of machined parts can be machined at the same time, the inner diameter faces and the outer diameter faces of the machined parts can be polished at the same time, feeding and discharging operation can be conducted continuously and circularly, and the machining efficiency is greatly improved.

The utility model relates to a foundation pit protection awning device which comprises a support, a stand column, a support transverse pipe, an H-shaped track and a pulley arranged on the H-shaped track. The pulley yoke is provided with the pulley; the end part of the first steel wire rope is fixed on the pulley yoke; the end part of the second steel wire rope is fixed on a side plate of the H-shaped rail; the sliding block is connected to the H-shaped rail in a sliding manner; the speed reducing motor is arranged at the end part of the H-shaped rail; one end of the driving lead screw is driven by a gear motor, and the driving lead screw penetrates through the sliding block in a threaded connection mode; the base is arranged at the other end of the H-shaped rail and is erected at the other end of the driving lead screw in a sliding manner; one end of the polished rod is fixed on the gear motor, and the other end of the polished rod penetrates through the sliding block in a sliding manner and is erected on the base; one end of the connecting rod fixes the sliding block and the other end fixes the pulley yoke; and the flexible backdrop net is arranged between the first steel wire rope and the second steel wire rope. According to the utility model, the sky screen net can be controlled to be opened and contracted.

This invention relates to the field of medical high-fidelity training model technology, and discloses a multi-vascular network biomimetic hemostasis model and method for junctional wounds. The model includes a biomimetic model, a blood bank system, a control system, and a temperature control unit. A biomimetic multi-vascular network is embedded in the junction area of ​​the biomimetic model, and a biomimetic wound opening is provided at the corresponding position of the biomimetic multi-vascular network. The input end of the biomimetic multi-vascular network is connected to the output end of the blood bank system, and the output end of the biomimetic multi-vascular network is located inside the biomimetic wound opening. The temperature control unit is located at the input end of the biomimetic multi-vascular network. A pressure sensor is provided in the biomimetic wound cavity wall of the biomimetic wound opening, and hemostatic material is filled inside the biomimetic wound opening, with the hemostatic material in contact with the pressure sensor. The control terminal of the control system is electrically connected to the blood bank system, the temperature control unit, and the pressure sensor. This invention can realistically simulate the bleeding process of penetrating and blind-tube injuries in the junctional wound of the simulation model, facilitating simulation training.

The utility model provides bulletproof glass convenient to install, which comprises a glass outer frame and a bulletproof glass main body, the glass outer frame is of a rectangular frame-shaped structure, the bulletproof glass main body is installed in the middle of the glass outer frame, adjusting cavities are respectively arranged in the middle of two ends of the glass outer frame, locking worms are rotatably connected in the adjusting cavities, and the locking worms are connected with the bulletproof glass main body. One side of the locking worm is connected with an adjusting worm gear in an engaged mode, and the two ends of the glass outer frame are each provided with two inserting plate grooves. According to the bulletproof glass installing device, by adjusting meshing adjustment between the worm gear and the locking worm, transverse rotation is converted into longitudinal rotation, then extension and contraction of the two installing inserting plates can be controlled, the installing function of the bulletproof glass body is achieved, the inclined face grooves are designed in the surfaces of the installing inserting plates, and by means of the inclined face gradient design of the inclined face grooves, the bulletproof glass body can be installed conveniently. During installation, the requirement range for the size of a hole site is relatively wide, and the installation is more stable by utilizing the design of the inclined plane when the installation insertion plate is close to the installation hole site relative to the installation insertion plate.

This invention discloses a deep foundation pit support structure on a slope, comprising: a vertically arranged transverse cast-in-place pile group; longitudinal cast-in-place pile groups at both ends of the transverse cast-in-place pile group near the bottom of the slope; two longitudinal cast-in-place pile groups perpendicular to the sides of the transverse cast-in-place pile group; both the transverse and longitudinal cast-in-place pile groups consist of several vertically arranged cast-in-place piles; the tops of the transverse cast-in-place pile group and the two longitudinal cast-in-place pile groups are connected to each other by a capping beam; the capping beam has a bracing at one end of its two opposite short sides and the end furthest from its long side; corner braces are provided between the two short sides and the long side of the capping beam; one end of each corner brace is connected to the middle of the short side of the capping beam, and the other end is connected to the long side of the capping beam; the end faces of the two short sides of the capping beam are connected to one end of an end support through a head plate; the other end of the end support cooperates with a support seat set in the slope; the end support has a set inclination angle; and oblique end supports are provided on the capping beam to transmit eccentric loads and maintain the external stability of the foundation pit.

The utility model provides a water surface garbage collection mechanism for water conservancy, and relates to the technical field of water surface garbage collection, the water surface garbage collection mechanism comprises a collection mechanism and a suspension mechanism, the collection mechanism comprises a box body, an installation plate is fixedly installed at the upper end of the interior of the box body, and an air bag is fixedly installed at the upper end of the installation plate; a collecting basket is movably inserted into the upper end of the box body, the bottom side of the collecting basket abuts against the upper end of the air bag, a plurality of holes are formed in the collecting basket, a sealing box is fixedly installed at the bottom end of the mounting plate, an air pump is fixedly installed in the sealing box, and the input end of the air pump penetrates through the box body, extends to the outside and is sleeved with an air hood. And the output end of the air pump penetrates through the mounting plate to be communicated with the air bag, a pump machine is fixedly installed at the bottom end of the interior of the box body, and the output end of the pump machine penetrates through the box body to extend to the outside and is sleeved with a drainage pipe. The water surface garbage collection device can effectively improve the collection efficiency of water surface garbage, and has high practical value.

The invention relates to a handheld aesthesiometer, comprising a gas lung connected with intermediation from first valve means to a source of gas and comprising an expandable cavity intended to house a volume of gas in a loading phase of the aesthesiometer; an outlet nozzle connected to the gas lung with intermediation from second valve means and suitable for directing a puff of the volume of the gas housed in the gas lung in a firing phase of the aesthesiometer; and a mechanism to ensure in the aforementioned firing phase of the aesthesiometer the release of the puff of the volume of gas contained in the gas lung in the direction of the outlet nozzle by means of a controlled contraction of the expandable cavity of the gas lung in order to ensure a substantially constant outlet pressure.

The utility model relates to the technical field of medicine boxes, and discloses a cardiovascular surgery nursing medicine box which comprises a box body, a movable cover is movably installed on the box body in a hinged mode, a handle is movably installed on the box body, and a sliding box is installed on the front side face of the box body in a sliding mode. A placing assembly used for placing medical tools is arranged at the position, close to an upper end opening, in the box body, the placing assembly comprises fixing rods, the multiple sets of fixing rods are fixedly installed in the box body, the multiple sets of fixing rods are jointly provided with an elastic supporting net, and the elastic supporting net is horizontally distributed in the box body; a plurality of sets of protruding pads are fixedly installed on the elastic supporting net at equal intervals. The elastic supporting net is controlled to contract so that the multiple sets of protruding pads can clamp and fix the medical tools in the containing area, the different medical tools cannot make contact with one another, the medical tools on the containing assembly cannot collide with one another or move in the moving process of the box body, and the effect of efficiently protecting the medical tools in the nursing medicine box is achieved.

The application belongs to the technical field of robots, and discloses a scalable amphibious robot driven by a paddle wheel, which comprises a shell, four wheel shafts rotatably connected to the shell and distributed on the left and right sides of the shell, four independent driving mechanisms arranged in the shell, four driving mechanisms connected with the four wheel shafts to drive the wheels to rotate independently, a scalable paddle wheel mechanism contained in the wheel mechanism, the scalable paddle wheel comprising a wheel, an independent small wheel body, a plurality of paddle plates and a scalable mechanism; the scalable mechanism is used for the expansion and contraction of the paddle plates of the paddle wheel, so that the paddle plates of the paddle wheel can be retracted into the wheel and form an integral whole with the wheel, or be expanded into a paddle wheel mechanism and be used for rowing. The single power driving system is combined with the scalable paddle wheel structure, so that the rigidity and flexibility of the hub are ensured when the amphibious robot runs on land, and the energy utilization efficiency is improved when the amphibious robot sails on water.

The utility model relates to the technical field of massage pillows, and discloses a novel massage pillow, which solves the problem that the existing massage pillow is easy to extrude the neck and the head, and comprises a massage pillow body, the massage pillow body is composed of a center supporting frame, a massage machine core, a plurality of bottom supporting air bags, a plurality of limiting assemblies, an air cushion, antibacterial cloth, a first side supporting frame, an air pump, a plurality of flexible air supply pipes, a second side supporting frame, an electricity storage type controller, a side cover plate, an exhaust pipe and a combined exhaust pipe. The massage machine core is located in the center supporting frame and connected with the center supporting frame through the bottom supporting air bag and the limiting assembly. By means of the massage pillow, the massage machine core can be contracted after massage is finished, air cushion supporting is carried out on a user, long-time extrusion on the user is avoided, and the comfort level of the user is improved.

The utility model relates to the technical field of warehousing teaching devices, relates to a three-dimensional warehousing teaching device, solves the technical problem that inventory model tools are damaged due to misoperation of beginners, and particularly relates to a three-dimensional warehouse main body and a stacking machine arranged in the three-dimensional warehouse main body, a plurality of inventory units are arranged in the three-dimensional warehouse main body, and the stacking machine is arranged in the three-dimensional warehouse main body. A protection mechanism for preventing a plurality of stored goods from existing in a single goods storage unit is arranged in each goods storage unit; the protection mechanism comprises a ratchet groove formed in the inner surface of the stock unit, a tray is arranged in the stock unit, a concave plate making contact with the stock is arranged on the surface of the tray, and a retaining piece sliding on the surface of the ratchet groove is arranged in the tray. When the anti-collision bag is extruded and deformed, gas in the anti-collision bag pushes the piston plate to drive the trapezoidal block to move in the through groove, so that the ratchet groove and the trapezoidal block are contacted and extruded, and the movement of the stock model and the tray in the stock unit is limited in time; and the goods storage model and the tray in the goods storage unit can be prevented from falling off and being damaged under the misoperation of a beginner.

The invention relates to low-carbon cement concrete as well as a preparation method and application thereof, and the low-carbon cement concrete is prepared from the following components in percentage by weight: 10 to 15 percent of low-carbon cement, 40 to 45 percent of coarse aggregate, 35 to 40 percent of fine aggregate, 0.1 to 5.0 percent of water, 0.1 to 2.0 percent of water reducing agent, 0.1 to 2.0 percent of nano aluminum oxide and 0.5 to 2.0 percent of shrinkage reducing fiber. The technical problem to be solved is how to provide the low-carbon cement concrete, so that the strength of the low-carbon cement concrete is improved, the requirement of a low-carbon cement concrete prefabricated part on the strength can be met, the volume stability of the low-carbon cement concrete prefabricated part is improved, cracking and deformation of the low-carbon cement concrete prefabricated part in the use process are favorably avoided, and the low-carbon cement concrete is not prone to cracking. And the durability of the low-carbon cement concrete prefabricated component is improved.

The invention relates to the technical field of offshore wind turbine installation, in particular to convenient-to-control offshore wind turbine installation and connection equipment and method.The convenient-to-control offshore wind turbine installation and connection equipment comprises a hoisting connection structure, a side protection frame, a supporting bottom frame, an attaching supporting plate and a reinforcing base; the lower end of the side protection frame is fixedly connected with a supporting bottom frame, the supporting bottom frame is fixedly connected with a reinforcing base, the upper end of the reinforcing base is fixedly connected with an attaching supporting plate, the hoisting connecting structure comprises a supporting limiting part and a regulating and controlling part, and the side end of the supporting limiting part is fixedly connected with the regulating and controlling part. The supporting and limiting component comprises a first limiting mechanism, a top matching mechanism and a second limiting mechanism, and one side of the top matching mechanism is fixedly connected with the first limiting mechanism. And through the arrangement of the hoisting connection structure, the hoisting work of the offshore wind turbine blades is facilitated.

The utility model discloses an auxiliary sheath for bladder tumor monolith resection, which comprises a handheld part with a cylindrical structure, a sheath cylinder with a strip-shaped structure is mounted at the front end of the handheld part, and holding handles are fixedly mounted on the left side and the right side of the handheld part. An endoscope is fixedly installed in the handheld part and connected with an observation eyepiece fixedly installed outside the rear end of the handheld part, the handheld part is connected with the endoscope sheath cylinder through a connecting piece, and the connecting piece is fixedly connected with the endoscope sheath cylinder. According to the auxiliary endoscopic sheath for the bladder tumor monolith resection, novel structural design is adopted, a distraction mechanism is arranged, in the using process of the auxiliary endoscopic sheath, a doctor rolls a connecting pull rope by rotating a rolling column, at the moment, an expansion plate is pulled through the connecting pull rope, the expansion plate is expanded outwards, and therefore tissue in the body of a patient is distraction; and normal operation of doctors is prevented from being influenced.

The present application relates to the field of electronic component materials, and more specifically, it relates to an optimized noble metal palladium silver inner electrode slurry for high frequency use in MLCC and a preparation method thereof. An optimized noble metal palladium silver inner electrode slurry for high frequency use in MLCC, comprising: palladium silver alloy powder, organic carrier, inorganic additive, dispersant; the organic carrier may be ethyl cellulose, hydrogenated rosin, diethylene glycol butyl ether acetate; the inorganic additive includes at least one of zirconium oxide, aluminum oxide, and barium titanate; the dispersant includes at least one of ammonium stearate, ammonium oleate, and ammonium linoleate and at least one of polyethylene glycol octyl ether ester acid amine, polyoxyethylene polyoxypropylene amine ether, polyethylene glycol octyl ester acid amine salt, polyoxyethylene lauryl alcohol ether citrate, and polyoxyethylene polyether fatty acid amine. The present application can effectively alleviate the problem of particle agglomeration in the slurry, optimize the fluidity of the slurry, improve the overall uniformity of the slurry, and enhance the performance of the MLCC.

The utility model discloses a window breaking baton and relates to the field of police instruments, the window breaking baton comprises a baton body, a window breaking assembly is arranged at one end of the baton body, a protection assembly is arranged at the end, close to the window breaking assembly, of the outer surface of the baton body, and through cooperation of a pressing piece, a first insertion rod, a second insertion rod and an extension spring, external length and contraction of two movable clamping blocks are controlled; the inserting rod is clamped through the movable clamping block, the conical block is installed at one end of the stick body through locking of the inserting rod and the movable clamping block, the conical block can be conveniently disassembled and assembled in the using scene, window breaking operation is conducted through the window breaking cone and the window breaking ball on the outer surface of the conical block, and using is convenient; and through cooperation of a pressure spring and a fixing disc, a fixing barrel is pushed out, so that a pressing piece is shielded and protected, and the situation that in the window breaking operation process, the pressing piece moves due to collision, then locking of a conical block and an inserting rod is influenced, and use of the conical block is influenced is avoided.

The present invention provides a non-drilling water pressure test device, including a center tube, a valve system assembly, and a rubber cylinder assembly; the center tube is provided with a central through opening; the rubber cylinder assembly is provided at the middle part of the center tube, and the valve system assembly is provided at the bottom end of the center tube; the valve system assembly includes a valve joint and a positive and negative valve, the valve joint is provided with a central through opening, the input end of the valve joint is connected with the output end of the center tube, and the positive and negative valves are provided in the valve joint and contact with the output end of the center tube; the positive and negative valves can control the downstream and reflux of water. Through the provision of the positive and negative valves, the present invention can control whether the output end of the center tube is in contact and whether the reflux can pass through the positive and negative valves according to the changes in the pressure in the mine, thereby controlling the expansion and contraction of the rubber cylinder assembly, and further realizing that the water pressure test can be carried out without drilling.

The utility model relates to the technical field of thermal spraying workbenches, and particularly discloses a thermal spraying workbench which comprises a supporting table, an upper frame body is arranged at the upper end of the supporting table, and a controller is arranged on the supporting table; an air collecting cover is arranged on the upper portion of the upper frame body, an exhaust fan is arranged at an outlet in the upper end of the air collecting cover, and an exhaust pipe is arranged at an exhaust port of the exhaust fan. Sliding grooves are symmetrically formed in the two side ends of the upper frame body, first rubber teeth are symmetrically arranged on the two side walls of the sliding grooves, square frames are arranged in the sliding grooves, transparent plate bodies are arranged in the square frames, holes are symmetrically formed in the middles of the transparent plate bodies, plugs are arranged in the holes, a plurality of second rubber teeth are symmetrically arranged on the two sides of the square frames, and the second rubber teeth are meshed with the first rubber teeth. The square frame and the transparent plate body can move up and down along the sliding grooves and can stop at any position.

The invention discloses automatic turnover type multi-surface cnc machining equipment for semiconductor equipment part machining, and belongs to the field of part machining. The automatic turnover type multi-surface cnc machining equipment comprises a machine tool, two sliding ways are formed in the upper surface of the machine tool in a penetrating mode, vertical frames are slidably connected to the interiors of the sliding ways, and a first motor is fixed to the upper surface of the interior of the machine tool; the turnover function is adopted, the second motor enables the clamping mechanism to drive a machined part to turn over through the transmission wheel, multi-face machining can be rapidly achieved in cooperation with machining equipment such as turning equipment above, multiple times of clamping and adjusting are not needed, the machining efficiency is improved, the machining cost is reduced, and the machining efficiency is improved. The processing efficiency is greatly improved; the eight clamping rods are used for clamping and fixing a machined part in an inside-outside fit mode, in the machining operation of cutting, drilling, milling and the like, even if machining equipment exerts pressure on the surface of the machined part, the machined part can be kept stable and prevented from sliding down and deviating, and therefore the machining accuracy is guaranteed.