176results about How to "Avoid extrusion deformation" patented technology

The invention discloses a template embedded type dam face permanent heat preservation protection module and a prefabrication and construction method. Comprising a heat preservation core layer, a facing anti-seepage protection layer is arranged on the side, close to a concrete pouring formwork, of the heat preservation core layer, an internal pressure-bearing protection layer is arranged on the side, close to dam surface layer crack limiting steel bars, of the heat preservation core layer, and a thermal broken bridge supporting keel is arranged in the heat preservation core layer; an anchoring device is arranged in the area between the internal pressure-bearing protection layer and the dam surface layer crack limiting steel bars. The modular prefabrication and construction method is adopted, the prefabrication and installation method of a single module is simple and efficient, details such as anchoring protection measures are fully considered, the engineering construction operability is high, convenience and high efficiency are achieved, and the construction time of the heat preservation layer is greatly saved.

The invention discloses a blast furnace top feeding winch control system which comprises four multi-transmission high-performance motion control frequency converters, and wire inlet structures of the transmission high-performance motion control frequency converters specifically comprise a system wire inlet structure A, a system wire inlet structure B and a system wire inlet structure C, the A system wire inlet structure comprises an A system wire inlet cabinet, an A system first rectifier cabinet, an A system second rectifier cabinet, an A system first inverter cabinet, an A system second inverter cabinet and an A system resistor cabinet; and B, a system wire inlet structure. A winch control system is optimized, a PLC alternating-current variable-frequency speed regulation mode is adopted, the speed dynamic response is high, the overload capacity is large, operation is safe and reliable, and the PLC self-control technology, the position encoder measurement technology, the large-scale variable-frequency speed regulation dragging technology and the intelligent master controller are organically combined and applied; and the faults of galloping, sliding, derailing and the like of the skip car in operation are reduced through double closed-loop control and multi-section speed control of a current loop and a speed loop of the motor.

The utility model provides a pipeline connector forming die which comprises a base, a die body, a die head and a die body. The middle of the base is provided with an opening. The outer mold is arranged on the upper surface of the base; the plurality of inner petal dies form a cylinder, a through hole is formed in the middle of the cylinder, and the through hole is conical; the multiple inner petal dies are arranged at the opening of the base and can move in a limited mode in the radial direction of the opening so as to be matched with the outer die to achieve forming of the pipeline connector; the inner petal die driving part comprises a cone and two limiting protrusions, the two limiting protrusions are arranged on the two sides of the bottom of the cone respectively, and the limiting protrusions just touch the lower surface of the base when the inner petal die driving part reaches the maximum moving distance so as to prevent the inner petal die driving part from continuing to move; wherein the inner petal die driving part is arranged in the through hole, and the cone is matched with the through hole. According to the utility model, the limiting bulge can be used for preventing the driving part of the inner petal die from moving over position, so that the inner petal die is damaged.

The invention provides a clamping jaw for automatic trimming and forming of a semiconductor, and relates to the field of sealing and testing processes of electric semiconductor integrated circuits, the clamping jaw comprises a connecting plate and a fixing plate, the bottom end of the fixing plate is fixedly provided with four linear bearings, and the bottom end of each linear bearing is fixedly connected with a guide column; the bottom ends of the four guide columns are jointly and fixedly connected with a fixed pressing plate, a parallel pneumatic claw is fixedly installed in the middle of the top end of the fixed pressing plate, the extending ends of the two sides of the parallel pneumatic claw are both fixedly connected with connecting blocks, and a gripper mechanism used for gripping a frame is fixedly installed on one side of the top end of each connecting block. The gripper mechanism comprises a first mounting frame fixedly connected to one side of the top end of the connecting block, four second mounting frames are arranged at the end, close to the parallel pneumatic claws, of the first mounting frame at equal intervals, and clamping claws are rotationally connected to the middles of inner cavities of the second mounting frames. And meanwhile, the situation of local deformation of the frame in the clamping process is also reduced.

The utility model provides a cross-layer laser processing device, which relates to the technical field of circuit board processing and comprises a processing table and a laminate main body, a door-shaped support is bolted on the top surface of the processing table, a servo motor is bolted on the bottom surface of the top end of the door-shaped support, and an output shaft of the servo motor is connected with a reversing disc. Guiding air cylinders are symmetrically distributed on the two sides of the surface of the reversing disc, the movable ends of the guiding air cylinders are connected with punching motors, output shafts of the punching motors are connected with laser drill bits and micro positioning drill bits correspondingly, the surfaces of the laminates are preferentially positioned through the micro positioning drill bits, and then cross-layer drilling is conducted through the laser drill bits; compared with a traditional direct drilling mode, the mode that drilling is conducted after positioning is adopted, positioning is more accurate, meanwhile, compared with mechanical drilling, laser drilling is higher in efficiency, extrusion deformation between the laminate bodies is prevented, and nondestructive cross-layer drilling of the surfaces of the laminate bodies is achieved.

The invention discloses a building construction foundation pit supporting structure and a supporting method thereof. The structure comprises a foundation, fender posts, water stop piles, supporting piles, a top beam, a waist beam, anchor cables, a slope protection concrete layer, a soil nailing wall concrete layer, a gravel cushion layer, a water suction pump, a water suction pipe, a well lid, a deepened bearing platform, a reinforced brick tire film and a well casing. The method comprises the steps of 1, field leveling; step 2, enclosure system construction; thirdly, a water stop system is constructed; fourthly, well point dewatering construction is conducted; 5, layered earth excavation is conducted; sixthly, a pit bottom cushion layer is constructed; the pit bottom multi-layer composite cushion layer structure is designed, the gravel cushion layer with the appropriate thickness is laid at the pit bottom so that redundant water can be rapidly removed, the foundation bearing capacity can be enhanced, then the reinforced thickened concrete cushion layer is additionally arranged on the gravel cushion layer, and the overall strength and rigidity of the cushion layer are improved through a reinforcing mesh or a fiber reinforced material; upper loads are effectively dispersed, and pit bottom soil is prevented from further extrusion deformation.

The invention discloses an adjustable pressure reducing valve, and relates to the technical field of pressure reducing valves, the adjustable pressure reducing valve comprises a valve body, a valve cover, a diaphragm, a valve rod, a spring and a valve core, the valve body is internally provided with a filter cavity, the filter cavity is internally provided with a filter assembly, the valve body is externally provided with an overhaul assembly connected with the filter assembly, and the overhaul assembly is internally provided with a power assembly; a connecting rod is arranged between the power assembly and the valve rod and detachably connected with the valve rod, a washing assembly connected with the power assembly is arranged on the lower portion of the filtering assembly, and a cleaning assembly is arranged at the position, below the valve element, of the outer portion of the connecting rod. The purposes of filtering, intercepting and collecting impurities in water flow can be achieved, the impurities attached to the lower surface of the filter screen can be removed, water permeability and normal filtering of the filter screen are guaranteed, the impurities can be prevented from being clamped between the valve element and the valve seat after the valve element and the valve seat are closed, normal work of the pressure reducing valve is guaranteed, and the service life of the pressure reducing valve is prolonged. And meanwhile, the overhaul, cleaning and maintenance work of corresponding parts is quicker and easier to operate.

The utility model provides an oil and gas field oil sample collector, which relates to the technical field of oil sample storage containers for oil sample collection, and comprises an oil sample container shield, a sealing end cover is buckled above the oil sample container shield, a positioning tray is movably connected to the inner bottom of the oil sample container shield, a sample storage bottle is movably connected to the inner part of the oil sample container shield, and the sample storage bottle is connected with the oil sample container shield. The container for collecting the oil samples in the oil and gas field is provided with double protection, the container is prevented from being extruded, deformed or broken under the action of external force, and the problem that an existing oil sample storage container is provided with a sealing cover, so that the sealing cover is not easy to deform is solved. The problems that an oil sample volatilizes, but a bottle body or a sealing cover is prone to being expanded and extruded by external force to be loosened or broken in the transportation process, so that the sealing performance is reduced, a container is not easy to clean, a large amount of time needs to be consumed for cleaning the container after single-time use, and use is not convenient enough are effectively solved.

The utility model discloses an ECMO pipeline fixing and pressure reducing device which comprises a supporting cover and a cover plate, an upper pipeline groove and a lower pipeline groove are formed between the supporting cover and the cover plate respectively, and the upper pipeline groove and the lower pipeline groove are oppositely arranged to define a circular hole. The problems that in the prior art, no medical instrument special for fixing the ECMO pipeline exists, the ECMO pipeline is not protected in place, the ECMO pipeline is prone to being extruded and deformed, serious injuries are caused to a patient, and even life safety is affected are solved. The ECMO pipeline fixing and pressure reducing device is reasonable in overall structural design, the position, stretching out of a human body, of an ECMO pipeline can be fixed, external fixing acting force and external interference object supporting can be achieved in the fixing process, and the ECMO pipeline is prevented from being extruded and deformed. The fixing strength of the ECMO pipeline can be improved, the extension direction of the ECMO pipeline is guided, conduction of an ECMO system and a patient is guaranteed, and the treatment effect is improved.

The utility model discloses a kind of seamless heat shrinkable sleeve pulling devices, including support platform, the top side of support platform is fixedly connected with positioning frame, the top two sides of positioning frame are all provided with arc-shaped recess, and the top of positioning frame between two groups of arc-shaped recess is fixedly connected with adjusting frame, the two sides of adjusting frame are all provided with a group of adjusting groove, the inside of adjusting frame is fixedly connected with a pair of guide slide rod, the top of adjusting frame is threadedly connected with adjusting screw rod, the bottom end of adjusting screw rod is rotatably connected with clamping frame in the inside of adjusting frame, the bottom two sides of clamping frame and the position corresponding with arc-shaped recess are provided with clamping groove, the inner wall two sides of clamping groove are all installed with elastic telescopic strip one, compared with existing heat shrinkable sleeve pulling device, the utility model can improve the stability of heat shrinkable sleeve pulling clamping by design, enhance overall practicability.

This utility model discloses a circulating lifting express delivery device, belonging to the field of express delivery technology. Through the threaded transmission of a bidirectional screw and a clamping plate, it can adapt to the clamping requirements of express packages of different widths, avoiding package slippage or deformation due to fixed spacing, thus improving the reliability of clamping and package integrity. The circulating lifting express delivery device includes a conveyor frame. Guide rods are symmetrically and vertically fixed at the front end of the conveyor frame. Sliding blocks are mounted on the guide rods, and sliding grooves are opened laterally on the sliding blocks. Receiving rods are slidably arranged within the sliding grooves. Receiving rods are protruding from the sliding blocks. Clamping cavities are formed on the two receiving rods at the middle section, and fixing components are installed in the clamping cavities. Two receiving components are set at the corresponding height at the front end of the conveyor frame. A mounting plate protrudes from the front end of the conveyor frame, with an elongated guide groove on the mounting plate. A transmission cavity is formed inside the mounting plate, and a transmission component is installed within the transmission cavity.

This invention relates to the field of air conditioner metal parts processing technology, and specifically discloses a tapping device suitable for processing air conditioner metal parts. A driving component is fixedly connected to the top of the base, and a movable frame is fixedly connected to the output end of the driving component. A tapping component is fixedly connected to the middle of the movable frame, and a protective component is fixedly connected to the bottom of the movable frame. A worktable is fixedly connected to the base, and a transmission component is fixedly connected to the inner side of the worktable. Positioning components are slidably connected to both sides of the top of the worktable. This tapping device for processing air conditioner metal parts addresses the issue of weak structural strength in the hollowed-out workpiece. If forcibly clamped and positioned, the clamping force concentrates on the sidewall of the workpiece, easily causing concavity in the sidewall and deformation of the hollowed-out area. The first spring allows the positioning plate to adaptively buffer the clamping force after contacting the workpiece, dispersing pressure and preventing extrusion deformation of the hollowed-out workpiece's dimensions.

The utility model discloses a piston sealing ring machining device, it includes: the mounting piece, the outer wall of mounting piece is ring array and is opened with the sliding slot, and the side wall of mounting piece is opened with the installation hole that communicates with the sliding slot, a plurality of the sliding slot all are inlayed with the sliding block, a plurality of the inner wall of sliding block all are opened with the taper slot, the installation hole is adjustably installed with the internal hexagonal screw rod, the outer wall welding of internal hexagonal screw rod is fixed with the convex part for pushing a plurality of sliding blocks, sealing ring raw material, sealing ring raw material sliding sleeve joint is established on the mounting piece, a plurality of sliding blocks all are with the inner wall of sealing ring raw material and abut, when processing sealing ring raw material, the inner wall of sealing ring raw material is fixed to the outside of mounting piece in the sliding slot movement of sliding block, and it is convenient to hold and fix the processing of piston sealing ring, avoids the extrusion deformation situation of piston sealing ring raw material.

The utility model relates to the technical field of insulation boards, and provides an insulation board cutting device convenient to fix, which comprises a cutting table, a cutting groove is formed in the center of the left wall of the cutting table in a penetrating manner, a cavity is formed in the front end of the left side of the cutting table, and a transmission assembly is arranged in the cavity. Fixing assemblies are arranged on the front side and the rear side of the cutting table correspondingly and used for fixing the heat preservation plate, calibration assemblies are arranged on the upper walls of the front side and the rear side of the cutting table correspondingly and used for calibrating the heat preservation plate, and the two fixing assemblies comprise rails fixedly connected to the front side and the rear side of the cutting table correspondingly. Sliding blocks are slidably connected to the inner walls of the two rails, supports are fixedly connected to the outer walls of one sides of the two sliding blocks, the two sides of the heat preservation plate are fixed, the situation that the cutting position is inclined due to manual fixing is avoided, and meanwhile the situation that the cutting position is inclined due to the fact that the hand is close to a cutting knife when the heat preservation plate is manually fixed is avoided. Therefore, the probability that the hands of the user are injured is reduced.

This invention relates to the manufacturing process and equipment for U-shaped tubes used in nuclear power steam emitters, belonging to the field of U-shaped tube manufacturing technology. It addresses the challenges of existing U-shaped tube forming processes, requiring precision molding and ensuring corrosion resistance and high-temperature performance during use. The invention utilizes a U-shaped angle-fixed mold, allowing for the detachable shaping block assembly through the coordinated arrangement of the rotating frame, fixed clamp, and clamping adjustment components. The pressure forming mechanism and side support mechanism work together to allow for replacement of the side support mechanism by removing replaceable half-rings before U-shaped tube extrusion molding. During U-shaped tube extrusion molding, the tube support gradually changes its angle as the pressing assembly rises and falls. Simultaneously, the highly conforming tube support prevents deformation of both ends of the U-shaped tube. The tube body is made of heat-resistant steel with good corrosion resistance and high-temperature performance. This invention changes the U-shaped tube injection molding production process to a method where the tube is first manufactured and then mechanically bent.

The application relates to a pure polyester weather-resistant powder coating drying storage device, belonging to the technical field of pure polyester weather-resistant powder coating storage, which comprises a storage tank, a power support frame and a middle drying assembly, the storage tank is horizontally rotationally connected to the power support frame, the two ends of the storage tank are provided with openings, and the storage tank is provided with a funnel-shaped discharge hopper on one side. The storage tank and the middle drying assembly can relatively rotate, the pure polyester weather-resistant powder coating is lifted to a high position and falls through the strip-shaped protrusions, and the pure polyester weather-resistant powder coating in the storage tank can be stirred in sequence and reciprocally, the heat accumulated in the middle of the storage tank can be quickly dissipated, hot air is discharged from the waterproof air-permeable valve, and the heat in the middle of the storage tank is prevented from being too high. When the humidity in the storage tank is relatively high, the electric heater in the middle drying assembly can be started to dry the pure polyester weather-resistant powder coating, and the device is complete in functions.

The application discloses a propellant charge structure integrity monitoring device for long-term storage and relates to the field of rocket fuel monitoring. The propellant charge structure integrity monitoring device for long-term storage comprises a water tank base, the water tank base is fixedly connected with a fixing frame, the fixing frame is fixedly connected with a servo motor, the output shaft of the servo motor is fixedly connected with a main gear, the fixing frame is rotationally connected with circumferentially distributed lead screws, the thread pitches of the circumferentially distributed lead screws are different, the circumferentially distributed lead screws are fixedly connected with from gears, the fixing frame is slidably connected with circumferentially distributed sliding inner shells, the water tank base and the fixing frame are slidably connected with circumferentially distributed sliding outer shells, the lead screws are threadedly connected with adjacent sliding inner shells, and the sliding inner shells are slidably connected with adjacent sliding outer shells. Different speeds of extrusion are simultaneously performed on the circumferentially distributed propellants, monitoring contrast is formed, and the accuracy of data is further improved.

The present invention relates to the technical field of transport machinery, and specifically discloses a converging conveying mechanism and a conveying system. The converging conveying mechanism of the present invention comprises a push plate assembly arranged on a conveyor belt assembly, the conveyor belt assembly comprises at least two first conveyor belts and one second conveyor belt, the second conveyor belt is arranged between the two first conveyor belts, the push plate assembly comprises a driving module, a guide rail and at least two push plate bodies, the push plate bodies are movably arranged on the guide rail, the guide rail is arranged at the connection between the first conveyor belt and the second conveyor belt, and the driving module can drive the push plate bodies to move closer to or away from each other on the guide rail, so that the material on the first conveyor belt is transferred to the second conveyor belt. The converging conveying mechanism of the present invention has a simple structure and low implementation cost. It can maintain the conveying speed of the first conveyor belt and the second conveyor belt while maintaining the transmission order of the materials, and can also avoid the consequences of conveyor belt blockage and material extrusion deformation.

This invention relates to the field of drilling machine technology, and more particularly to a drilling machine for processing electrical components with a fixed function. It includes a base and a mounting plate. The mounting plate is L-shaped and fixedly connected to the base. A drill bit is mounted on the mounting plate. A cleaning component is mounted on the base, comprising a moving plate, a first airbag, a discharge chamber, a triangular block, and vertical plates. Slide grooves are respectively formed on both sides of the base. The two ends of the moving plate are slidably connected to the slide grooves. Two vertical plates are fixedly connected to both ends of the moving plate. Two discharge chambers are slidably connected to both ends of the moving plate. In this invention, multiple support rods can support the workpiece. When the drill bit is used to drill holes in the workpiece, the support rods on both sides of the required drilling location prevent the workpiece from being squeezed and deformed during drilling.

This utility model relates to the field of fiberglass pipe production technology, specifically to a fiberglass pipe winding machine. It includes a winding machine body, a mounting frame, guide rollers, and guide components. The winding machine body has a movable structure, with the mounting frame connected to the movable part of the movable structure. Multiple guide rollers are arranged in parallel and rotatably connected to the mounting frame. Multiple guide components are provided and connected to the mounting frame. Each guide component comprises a guide rod, a connecting rod, and an adjusting component. In this utility model, when winding fiberglass, the operator can adjust the position of the guide rods according to the different sizes and diameters of the fiberglass, changing the spacing between the guide rods. This prevents the coarse yarn and multi-strand combined yarn bundles from being squeezed, deformed, and rubbing against each other, solving the yarn diameter compatibility problem. A limiting rod is provided on the connecting rod to prevent the guide rods from tilting or wobbling due to external forces during use.

The embodiment of the invention provides a pressure filter structure, a lubricating system and fuel oil equipment, and the pressure filter structure comprises a bypass valve which is provided with a containing cavity; and the filtering assembly comprises a filtering piece and a fixing piece, the filtering piece is arranged in an inner cavity of the fixing piece, the fixing piece is connected with the bypass valve, the oil sequentially penetrates through the fixing piece, the filtering piece and the bypass valve and then flows out of the bottom of the containing cavity, and / or the oil sequentially penetrates through the bypass valve and then flows out of the bottom of the containing cavity. The fixing piece can prevent at least part of impurities from impacting the filtering piece along with the oil liquid, so that the filtering piece is protected from being damaged by the impurities, the filtering efficiency is guaranteed, in the oil duct design and the shell design, an oil duct outlet can directly face the filtering piece, the filtering efficiency is improved, and the service life of the oil duct is prolonged. An oil baffle plate structure does not need to be designed, so that oil duct design and shell design are facilitated, the cost can be saved, the service life of a filtering piece can be prolonged, and the reliability is improved.

According to the control mechanism for forming the Z-shaped pin of the lead frame, the upper mold assembly and the lower mold assembly move relatively, and the side pushing block, the pre-pressing assembly and the side pushing column are matched with one another, so that the Z-shaped pin is formed; the pre-pressing assembly abuts against or is staggered with the first protrusion of the side pushing block through the second protrusion of the ejector plate under the matching effect of the first inclined face of the side pushing block and the second inclined face of the side pushing column, and therefore the effects of pre-pressing the pin and delaying stripping are achieved.

The utility model relates to the section bar processing technical field, concretely is a kind of stacking machine for section bar production, including mounting bracket, the top of mounting bracket is fixedly installed with track piece, mounting bracket is fixedly installed with material receiving guide plate above track piece, multiple stacking assemblies are equipped on track piece, the lowest part of the top of track piece is close to material receiving guide plate and is provided with recess for stopping the stacking assembly of not full load, and buffer material receiving assembly for layer-by-layer subsidence material receiving and let stacking assembly full load after separating from recess is equipped on stacking assembly;By setting stacking assembly, buffer material receiving assembly and elastic component, utilize multiple stacking assemblies to sequentially complete moving, material receiving and separation process, realize the continuous stacking of section bar, when material receiving, the buffering effect of layer-by-layer subsidence can be formed, avoid the knock or extrusion deformation of section bar due to the too big drop, and elastic parameter is adjustable, can be adapted to section bar of different weight, size, satisfy diversified production demand, improve equipment versatility.

The invention relates to the technical field of corrugated cartons, in particular to a high-strength moisture regain prevention type corrugated carton which comprises a carton body. The top sealing assembly and the bottom sealing assembly are arranged at the top and the bottom of the box body respectively; the number of the bending grooves is four, and the four sets of bending grooves are located at the four corners of the box body; the moisture-proof plate is arranged in the box body, a mounting groove is formed in one side of the box body, and one end of the moisture-proof plate penetrates through the interior of the mounting groove. The inner walls of the four sides of the box body can be effectively supported, the overall strength of the box body is guaranteed, the situation of extrusion deformation in the follow-up transportation process is avoided, and in the supporting process, the first supporting assemblies are distributed in the box body at equal intervals from top to bottom, so that supporting force borne by the inner walls of the four sides of the box body is more uniform, and the service life of the box body is prolonged. And the overall strength of the box body is further improved.

The invention provides a box type tray with a single home textile product isolated storage function, and relates to the technical field of trays for home textile product processing. Six groups of stacking tables are connected to the upper part of the tray main body through bolts; the two sides of the upper surface of the stacking table are each connected with a separation supporting column through welding. The tray has the function of bearing a single set of products, in the process that cuboid packaged finished products are placed on the tray, a switch is triggered through the packaging side edges of the products, the partition plates on the upper layer are popped out, the function of supporting the products on the upper layer is achieved, and the products stacked on each layer have an independent supporting structure; the tray for processing the home textile products solves the problems that for an existing tray for processing the home textile products, due to the fact that the home textile products are placed on a transfer tray in a stacked mode, the products on the lower layer are squeezed due to the weight of the products placed on the upper layer, the packaged finished products on the lower layer deform, and the products on the lower layer deform. And product selling is influenced.

The application discloses a structure frame for preventing steel sheet pile from extrusion deformation in soft soil foundation, and relates to the field of soft soil foundation excavation. The structure frame comprises a structure frame body, buffer assemblies are symmetrically and fixedly connected around the top of the structure frame body, a lifting ring is fixedly connected to the top of a top plate, ground burying columns are symmetrically and threadedly connected around the bottom of the structure frame body, a first hydraulic cylinder is fixedly connected to the back of a ventilation groove inner cavity, a first hydraulic rod is arranged in the inner cavity of the first hydraulic cylinder, second hydraulic cylinders are symmetrically arranged on the two sides of the structure frame body inner cavity, a second hydraulic rod is arranged in the inner cavity of the second hydraulic cylinder, and a handle is fixedly connected in the structure frame body inner cavity. The structure frame for preventing steel sheet pile from extrusion deformation in soft soil foundation can avoid the phenomenon that the structure frame is deformed due to the extrusion of soft soil during excavation work, so that the safety of workers and the excavation efficiency are improved.

The invention discloses an underground coal transport vehicle, and belongs to the technical field of coal transport devices, the underground coal transport vehicle comprises a vehicle frame main body and a vehicle head suspension plate, the outer side of the top end of the vehicle head suspension plate is provided with a guardrail assembly, and the top end of the vehicle head suspension plate is provided with a cockpit side protection assembly; a storage assembly and an anti-seismic supporting assembly are arranged at the position, located in the cab side protection assembly, of the top of the vehicle head suspension plate, and a throwing hole is formed in the top of the vehicle head suspension plate. Through cooperative arrangement of the trigger trapezoidal columns and the limiting clamping tongues, when the cockpit top plate is impacted by collapse objects, serious deformation of the cockpit top plate can be prevented through the anti-seismic buffer springs, meanwhile, resonance caused by impact of the collapse objects is weakened, and when the collapse objects cause deformation of the cockpit top plate, the limiting clamping tongues can be pressed downwards through the trigger trapezoidal columns, so that the collapse objects are prevented from collapsing. The seat bearing platform is put into the escape bin formed in the platform enclosure, and a driver can obtain escape materials in the material storage cabinet by opening the cabinet body closing plate and escape in time by opening the escape protection plate.

This utility model discloses a rapid pressing device for electro-hydraulic push rod seal rings, including an assembly table and an assembly base mounted on the assembly table. A fixing frame is fixedly installed at the bottom of the assembly table, and a first push rod is fixedly installed at the bottom of the fixing frame. The output end of the first push rod passes through the fixing frame and is fixedly mounted with a lifting platform. This utility model relates to the field of electro-hydraulic push rod processing technology. This rapid pressing device for electro-hydraulic push rod seal rings, through the cooperation between a fourth push rod and a clamping ring, allows the seal ring to be installed on the outer wall of the piston by an outward expansion method, avoiding the deformation of the seal ring caused by pressing installation, and increasing the stability during seal ring installation. Through the cooperation of the fourth push rod, the clamping ring, and the rotating ring, the hydraulic push rod piston after the seal ring is installed can be flipped, facilitating the installation of a second seal ring and improving the efficiency of seal ring installation.

This invention discloses an intelligent milling machine tool and method for spring processing, relating to the field of intelligent spring processing technology. It includes a milling power head and a worktable mounted on a frame, with the milling power head positioned above the worktable. A pulse chip removal mechanism is installed on the worktable, comprising a positioning sleeve, a directional nozzle assembly, a high-frequency pulse solenoid valve, and a cutting fluid pressure stabilization supply mechanism. This invention, by setting up a pulse chip removal mechanism and regulating the cutting fluid pressure through the cutting fluid pressure stabilization supply mechanism, achieves millisecond-level on / off switching of the cutting fluid via the high-frequency pulse solenoid valve. This causes the directional nozzle assembly to spray pulsed cutting fluid along the spring's spiral direction, forming a jet that penetrates the narrow spiral slit structure of the spring to remove chips. Combined with the outlet pipe at the bottom of the positioning sleeve, this achieves rapid discharge of chips and cutting fluid, thoroughly removing fine chips from the narrow spiral slit of the spring while avoiding the impact of the cutting fluid on low-rigidity springs, thus improving the accuracy and quality of spring end leveling processing.

The invention relates to the technical field of machining, in particular to a welding device for electric bicycle frame production and a welding method thereof, and the welding device is matched with automatic and semi-automatic electric arc welding equipment for use and comprises a mounting plate, a clamping plate and a hydraulic cylinder. The welding device comprises a fixing plate, a clamping mechanism, a reset mechanism, a limiting mechanism, a thermal reaction mechanism, a piston mechanism and a mounting base, during welding, the temperature rises, liquid in the thermal reaction mechanism evaporates and expands to push the piston mechanism to stretch out, and when the piston mechanism stretches out, the limiting mechanism relieves limiting on the clamping mechanism; and meanwhile, the reset mechanism pulls the clamping mechanism to be away from the high-temperature position of the pipe fitting frame. By means of the mode that the clamping mechanism is heated to be separated under the action of the thermal reaction mechanism, the problems that when a frame is welded, materials are softened due to the fact that the temperature around a welding point rises, and a pipe fitting frame positioning device cannot change the clamping force according to the material change, and consequently the positioning device extrudes and deforms the frame are solved.