286results about How to "Guarantee processing quality" patented technology

The invention relates to the field of municipal engineering construction, in particular to gas pipeline construction equipment for municipal engineering. Comprising a conveying mechanism, a supporting and fixing mechanism and a groove cutting mechanism, the supporting and fixing mechanism and the groove cutting mechanism are sequentially arranged in the conveying direction of the conveying mechanism, the groove cutting mechanism comprises a fixed ring, a rotating ring and cutters, the rotating ring is coaxially and rotatably arranged on the fixed ring, and the cutters are evenly distributed on the rotating ring in the circumferential direction of the rotating ring. Each cutter can move in the radial direction of the cutter, the extrusion ring can move in the axis direction of the extrusion ring, a plurality of supporting pieces capable of moving in the radial direction are evenly distributed on the inner side of the extrusion ring in the circumferential direction of the extrusion ring, and an inner supporting driver is arranged on the extrusion ring. The rubber layer on the extrusion ring is elastically attached to the end face of the gas pipeline removal end, a uniform limiting contact face is formed, the stability of axial limiting is improved, the gas pipeline is internally supported through cooperation with the multiple supporting rollers, and the stability of radial limiting is improved.

This application provides a fixture and method for clamping and machining thin-walled welded parts, relating to the field of fixture and tooling technology. The fixture includes a base mechanism, a central positioning mechanism, an angular positioning structure, an auxiliary support mechanism, and a clamping mechanism. The base mechanism uses a disc and multiple circumferentially arranged elongated plates to form a support surface; the central positioning mechanism mates with the positioning inner hole of the part to achieve central positioning; the angular positioning structure mates with the angular hole of the part to achieve angular positioning; the auxiliary support mechanism is set for each lug to be machined, using V-shaped supports and lateral limiting components to provide auxiliary support and limit the lugs to be machined; the clamping mechanism clamps the part to the clamping reference surface. This solution can improve the clamping stability, positioning accuracy, and local rigidity during machining of thin-walled welded parts, reduce vibration and lateral displacement of the lugs to be machined, and reduce the risk of cracking at the weld joint.

The utility model discloses an automobile fuel tank high anti-corrosion antibacterial galvanizing device which comprises a processing box, a main shaft which is transversely arranged and can rotate is arranged in the processing box, and a plurality of first fixing columns and second fixing columns which correspond to each other are evenly distributed on the side walls of the two ends of the main shaft respectively. A hanging rod is arranged at the end of each first fixing column and the end of each second fixing column which correspond to each other, a plurality of hooks which are used for hanging oil tanks and are arranged at equal intervals are arranged on the hanging rods, and fixing grooves matched with the hanging rods are formed in the ends of the first fixing columns and the ends of the second fixing columns. And a limiting piece which is used for limiting the hanging rod in the radial direction and can stretch and retract towards the inner wall of the fixing groove is arranged in the fixing groove. The oil tank feeding and discharging device has the advantages that collision of the oil tank caused by sliding of the oil tank during feeding and discharging can be avoided, stability and reliability during feeding and discharging of the oil tank are guaranteed, feeding efficiency is improved, and production stability and machining quality are guaranteed.

The utility model relates to the technical field of computer hard disks, in particular to a hard disk support punch forming device which can achieve continuous punching, improve production efficiency, guarantee machining quality and meet production requirements. Comprising a workbench, a plurality of supporting legs, a plurality of vertical rods, a top plate, a feeding assembly, a stamping and cutting assembly, a guide assembly and an auxiliary assembly, the supporting legs are fixedly installed at the four corners of the bottom end of the workbench correspondingly, friction plates are arranged at the bottoms of the supporting legs, the vertical rods are installed at the four corners of the top of the workbench, and the top plate is installed at the tops of the vertical rods; the feeding assembly is installed at the left end of the top of the workbench, the stamping and cutting assembly is installed at the top of the top plate, the guiding assembly is installed between the top plate and the stamping and cutting assembly, and the auxiliary assembly is installed at the bottom of the stamping and cutting assembly.

The utility model discloses a compression roller for a calender, and relates to the technical field of automobile leather processing. The pressing roller for the calender comprises a mounting roller, an embossing cylinder and a positioning assembly, anti-deviation assemblies are arranged on the two sides of the mounting roller, two sets of positioning protruding strips which are distributed front and back are fixedly mounted on the outer wall of the mounting roller, the outer wall of the mounting roller is sleeved with the embossing cylinder, and the positioning assembly is arranged on the mounting roller and the embossing cylinder. According to the compression roller for the calender, on one hand, the embossing cylinder and the mounting roller are connected in a combined mode, compared with a direct fixing mode, rapid switching of different textures and patterns can be achieved without replacing the whole compression roller, meanwhile, the production requirements of small batches and multiple varieties are met, the downtime can be shortened, and the cost of spare parts can be reduced; and on the other hand, the two sides of the embossing cylinder can be reinforced after the embossing cylinder is positioned, so that the embossing cylinder is not prone to deviation, the machining quality is ensured, and the practicability of the compression roller is improved.

The utility model provides a kind of processing frock of marine high-power diesel engine cylinder cover inclined hole, it is related to marine diesel engine parts processing technical field, including base, backplate, positioning plate, cushion block, drill jig plate body, pin shaft and drill jig cover;The backplate and the cushion block are installed on the base top, the positioning plate is fixed on the backplate, the drill jig plate body is positioned fastening by the pin shaft, the drill jig cover is set on the drill jig plate body.The utility model solves the problem that different frock needs to be called when processing center processes cylinder cover inclined hole, there is the problem of repeated up and down activity, not only increase production cost, also reduce production efficiency, also difficult to guarantee the processing accuracy of inclined hole, it can lead to inclined hole drilling deviation due to angle problem, affect the cooling effect of cylinder cover.

The application discloses a PCB oxidation-preventing treatment device, and relates to the oxidation-preventing treatment field of pretreatment plates, which comprises a main frame body, a spraying box body is arranged on the upper surface of the main frame body, and a micro-etching mechanism is arranged on the upper surface of the main frame body. The micro-etching mechanism comprises a cleaning assembly and a soaking assembly. The cleaning assembly comprises a sliding table body, the sliding table body is arranged on the upper surface of the main frame body, one side surface of the sliding table body is further provided with a sliding groove, one side of the inside of the sliding groove is provided with a bottom protruding block, and the inside of the sliding groove is provided with a limiting sleeve block. The soaking assembly comprises a vertical sliding rail, the bottom surface of the vertical sliding rail is connected with one side surface of a liquid pool bottom plate, and the inside of the vertical sliding rail is provided with an internal hydraulic rod. In the scheme, the micro-etching mechanism can efficiently remove the oxidation layer and pollutants of the pretreatment plate, provide a clean surface, and can also realize operations such as vibration liquid removal, liquid filtration and purification, and concentrated liquid recycling, so that the treatment effect and resource utilization rate are improved.

This invention belongs to the field of laser additive manufacturing technology, specifically relating to a dual-spot parallel scanning additive manufacturing system and method. A laser generation unit dynamically distributes a laser beam to the first and second optical paths according to a preset energy ratio through polarization beam splitting. The spot generation unit uses two spatial light modulators to modulate the two beams into patterned spots and dot spots respectively. The filtering and imaging unit filters and images the two beams. The parallel scanning unit drives the dual spots to scan synchronously on a powder bed. The control unit performs model slicing and patterned region segmentation, and dynamically allocates energy and synchronously controls all units to work together based on the segmentation results. This achieves a single laser, dual optical paths, irregularly shaped spots, and parallel scanning, simultaneously balancing processing efficiency and forming accuracy, effectively solving the technical problem of traditional single-spot methods that struggle to achieve both efficiency and accuracy.

The high-precision laser compound machine comprises a base, a front door assembly is arranged on the front side of the top of the base, and a right side door assembly is arranged on the right side of the top of the base; the front door assembly comprises at least two front door bodies, each front door body can slide in the width direction of the base, and the front door bodies are arranged in a staggered mode in the length direction of the base; the right side door assembly comprises at least two right side door bodies, each right side door body can slide in the length direction of the base, and the right side door bodies are arranged in a staggered mode in the width direction of the base. By arranging the front door assembly and the right side door assembly, the compound machine is provided with two material inlets and outlets, when the two door assemblies are opened at the same time, the staggered sliding design expands the opening range of the door bodies, interference is reduced, large plates can enter and exit conveniently, the problem that use is inconvenient in the past is solved, and the machining quality of products is guaranteed.

The application discloses a PVC sheath hot-pressing device and relates to the technical field of PVC sheath processing.The device comprises a rack, a hot-pressing assembly and a material taking assembly.A cushion plate is arranged on the rack, one side of the cushion plate is provided with a limiting block one, a plurality of limiting holes one for placing PVC sheaths are arranged on the limiting block one, the other side of the cushion plate is provided with a limiting block two, a plurality of limiting holes two for inserting wire harnesses are arranged on the limiting block two, the hot-pressing assembly is arranged on the rack and is used for hot-pressing the PVC sheaths on the cushion plate to the wire harnesses, and the material taking assembly is arranged on the rack and the cushion plate and is used for taking out the hot-pressed PVC sheaths from the limiting block one.The device is provided with an automatic material taking assembly, and the mechanized discharging can avoid the contact of personnel with high-temperature PVC sheaths, thus avoiding the risk of scalding from the root.The application automatically completes sheath taking out and lifting through a cylinder, a rack and a gear transmission, and the production efficiency is improved.The multiple limiting and supporting structures guarantee smooth and accurate operation, avoid sheath deformation, and ensure product quality and batch production consistency.

The utility model relates to the field of food heating and cooking, and discloses a meal box for a food heating device, which comprises a bottom shell, an upper cover and a protective frame, the protective frame is mounted on the upper cover and tightly presses the upper cover on the bottom shell, so that corners of the upper cover are respectively wrapped by the protective frame, and further reinforcing layers are formed at the corners of the upper cover. The food heating device is suitable for being used in cooperation with heating corollary equipment, simple in structure and high in pressure resistance, greatly improves use stability, guarantees even heating of food materials, avoids leakage of the food materials, and guarantees normal use of products.

The utility model discloses a shot blasting equipment, include: shot blasting bin, inside has shot blasting chamber, shot blasting device has shot blasting gun setting in shot blasting chamber, shot blasting gun is connected with removal module and rotation module, workpiece fixing device, including the rotary table, be provided with the fixed column for fixing workpiece on the rotary table, the fixed column rotatable, shot blasting generating device is connected with shot blasting gun, shot blasting collection device, connects shot blasting chamber and shot blasting generating device, makes shot material can cyclic use. The utility model has the advantages that realizes automatic shot blasting, and through setting rotatable workpiece fixing device and the shot blasting generating device who can remove makes workpiece in the process of processing without dead angle, guarantees the processing quality, improves product processing efficiency.

The invention provides a precise element batch turnover processing production line and method. The precise element batch turnover processing production line comprises a plurality of carriers, a transmission mechanism, an excessive glue detection mechanism, a turnover mechanism and an unlocking mechanism. The carrier is composed of a body and a cover plate, and switching between a locking state and an unlocking state can be achieved through cooperation of a cover plate positioning pin and a positioning groove. The conveying mechanism is provided with a feeding line body extending in the first direction, and the carrier can sequentially pass through a detection station, an overturning station and an unlocking station. And the excessive glue detection mechanism realizes excessive glue detection through an infrared camera and a laser sensor. And the turnover mechanism adopts a clamping assembly capable of being opened and closed to clamp the carrier, and drives the carrier to turn over through a turnover driver and a rotating shaft. The unlocking mechanism utilizes the suction head to suck the movable cover plate so as to switch the state of the carrier. According to the scheme, the production line is compact in layout and stable in operation, the functions of automatic transmission, accurate detection, stable overturning and rapid unlocking are integrated, the machining quality can be guaranteed, the batch machining efficiency can be improved, the labor cost and the reject ratio can be reduced, and the automatic and large-scale overturning machining of multi-model precision elements can be achieved.

This utility model discloses a tooling for machining shaft pin parts, relating to the field of machining tooling technology. It includes a lathe body, a support assembly fixedly mounted on the rear side of the lathe body, a movable stage movably mounted on the support assembly, a locking assembly fitted onto the movable stage, and a connecting frame extending towards the front of the lathe body from the top of the movable stage. This utility model design uses the movable stage to support and move a positioning frame, thereby adjusting the position of the positioning frame according to the length of the workpiece to be machined. When workpiece positioning is required, the movable stage is first fixed by the positioning assembly, and then the position of the positioning seat is adjusted according to the diameter of the workpiece, so that the rollers on the positioning seat abut against the surface of the workpiece. During machining, the lathe body passes through the clearance opening at the front end of the positioning frame, thus assisting the lathe spindle in positioning the workpiece without hindering machining, preventing workpiece movement, and ensuring machining quality.

This invention belongs to the field of composite material processing technology and discloses a trimming actuator, a trimming processing device, and a trimming processing method. The trimming actuator includes a side U-shaped housing, a milling assembly, and a transmission assembly. The main body of the side U-shaped housing extends vertically, and both ends are bent and extended horizontally to form an upper extension and a lower extension, which together form a receiving cavity. In the milling assembly, a first connecting shaft passes through the upper extension and is rotatably connected to it, with its upper end connected to a power spindle and its lower end connected to a first milling cutter. The lower end of a second connecting shaft is rotatably connected to the lower extension, and its upper end is connected to a second milling cutter. The first and second connecting shafts are coaxially arranged, and the first milling cutter is located above the second milling cutter, with their axes collinear. The rotation of the power spindle drives the first connecting shaft and the first milling cutter to rotate synchronously. The transmission assembly transmits the power of the first connecting shaft to the second connecting shaft, realizing the synchronous rotation of the first and second milling cutters and suppressing delamination and burr defects on the trimmed edges of the composite material.

The utility model discloses a high -efficient sample warp knitting machine of textile machinery technical field, including main base, the first line arrangement mechanism is installed to the main base right front upper left corner, the second line arrangement mechanism is installed to the main base left upper left corner, the first line arrangement mechanism rear installation has the quick wiring module, when the first line arrangement mechanism is about to work to complete, can carry out the partial line arrangement of second line arrangement mechanism, and the head of wire harness is fixed in the head of quick wiring module when work completes, through installing main base, first line arrangement mechanism, second line arrangement mechanism and quick wiring module, when the first line arrangement mechanism works, can carry out new line arrangement in second line arrangement mechanism in advance, when the first line arrangement mechanism completes work, utilizes quick wiring module and butt -joins new and old wire harness, and the whole machine short -term shutdown can complete the line change, reaches the purpose that improves warp knitting machine work continuity, has realized the production efficiency of improving greatly, has reduced the time loss that causes because of shutdown line change.

The application discloses a machining inner hole polishing device and particularly relates to the technical field of machining, which comprises a polishing table, a fixing assembly arranged on the polishing table and used for clamping and fixing a workpiece, a fixing frame arranged on the top of the polishing table and provided with a fixing seat which is installed in the fixing frame in a liftable manner, and a fixing shaft which is rotatably installed on the fixing seat through a bearing. The polishing plate and the polishing block arranged in a corresponding manner on the polishing roller are provided, the polishing plate and the polishing block have different radial extension strokes, the synchronous fitting and positioning of the inner walls of different diameter hole sections of the stepped hole are realized, the inner walls of different diameter hole sections of the upper and lower parts of the workpiece inner hole can be respectively polished during polishing, the one-time synchronous polishing of the two inner walls of the stepped hole is realized, the uneven roughness of the inner walls of each region and the out-of-tolerance problem of the roundness caused by the inconsistent factors such as the rotating speed and the polishing time in the traditional segmented polishing are avoided, and the consistency and the processing efficiency of the inner wall processing of the stepped hole are greatly improved.

The invention discloses a cooling integrated system for sand treatment of a lost foam casting production line, and relates to the technical field of sand treatment. Comprising a plurality of second supports, a heat exchange assembly is arranged above the second supports and comprises a heat exchange tank, the heat exchange tank is fixed to the second supports, a second feeding pipe is arranged above the heat exchange tank, a bottom plate and a top plate are fixed in the heat exchange tank, and a plurality of seamless steel pipes are arranged in the bottom plate and the top plate; a first lifting assembly and a second lifting assembly are fixed to the two sides of the heat exchange tank correspondingly and are the same in structure, a feeding assembly is arranged on the side face of the first lifting assembly, and a storage assembly is arranged on the side face of the second lifting assembly. Through the design of the three-bin type heat exchange tank, the seamless steel pipes are matched with the partition plates, so that the cooling efficiency is improved, the production efficiency is improved, the machining quality is guaranteed, and the equipment failure rate and the maintenance cost are reduced.

The utility model relates to a fixing device for processing a construction template, which is characterized in that fixed clamping plates are arranged on the lower side and the left side of the end surface of a worktable, a vertical sliding chute and a transverse sliding chute are respectively arranged on the upper side and the right side of the end surface of the worktable, and movable clamping plate components are arranged in the sliding chutes, so that a multi-directional clamping structure for the construction template is formed; the fixing stability and reliability of the formwork can be effectively improved, displacement of the formwork in the machining process is avoided, and the machining precision and quality of the construction formwork are guaranteed; the arranged synchronous driving device can drive the two movable clamping plate assemblies to synchronously move inwards or synchronously move outwards, the synchronous driving mode is easy and convenient to operate, the workload of operators is greatly reduced, construction formworks of different specifications can be rapidly adapted, rapid and accurate fixing of the formworks of different sizes is achieved, and the construction efficiency is improved. The machining efficiency of the construction formwork is remarkably improved, and the machining cost is reduced.

The utility model relates to a turnover transfer device and a solar cell production system. The overturning and transferring device comprises a bearing mechanism, an overturning mechanism, a lifting mechanism, a transverse moving mechanism and a fixing mechanism, wherein the bearing mechanism is used for bearing a battery piece. The turnover mechanism is connected with the bearing mechanism and used for driving the bearing mechanism to turn over by a preset angle. The lifting mechanism is connected with the bearing mechanism and used for driving the bearing mechanism to ascend and descend. The transverse moving mechanism is connected with the lifting mechanism and used for driving the bearing mechanism to move to the position above the preset position. The fixing mechanism is arranged on the bearing mechanism and has a fixing state for fixing the battery piece on the bearing mechanism and a releasing state for releasing the battery piece at a preset position. Therefore, the overturning and transferring device can replace a gantry to take and place cells, improve sucker marks and guarantee the processing quality of the cells, meanwhile, the torque value of the gantry does not need to be detected in real time, the suckers do not need to be replaced, cost is reduced, and processing efficiency is improved.

The utility model relates to the technical field of wastewater treatment, in particular to a device for treating wastewater containing perfluorinated compounds, which comprises a filtering tank and a settling tank, a precipitation tank for chemical reaction precipitation of the wastewater is arranged below the filtering tank; wastewater is poured into the filtering tank, perfluorinated compounds in the wastewater are adsorbed and suspended solids and impurities in the wastewater are filtered out through the activated carbon adsorption plate and the filtering plate in the filtering tank, then the wastewater enters the depositing tank, and fluorine ions in the wastewater are removed through chemical deposition of the wastewater and a proper amount of chemical agents. According to the method, fluorine ions react with a medicament to generate insoluble precipitates, so that the concentration of the fluorine ions in wastewater is reduced, after the filtering structure is used for a period of time, the filtering structure is detached and cleaned, accumulated pollutants are removed through regular cleaning, the filtering effect is kept, the wastewater treatment efficiency is improved, meanwhile, the filtering performance is kept through regular cleaning, and the service life of the filtering structure is prolonged. The wastewater treatment effect and the wastewater treatment quality are ensured.

The utility model belongs to the technical field of energy-saving heating, and particularly relates to an energy-saving heating mechanism of silicone rubber processing equipment, which comprises a bottom plate and a heating box, a plurality of exhaust holes are formed in the top of the heating box, a centrifugal exhaust fan is fixedly connected to the front side of the top of the bottom plate, and a fan speed regulator is fixedly connected to the front side of the top of the bottom plate. And the top of the centrifugal exhaust fan communicates with a gas collecting pipe, the right side of the centrifugal exhaust fan communicates with a gas conveying pipe, heat dissipation fences are fixedly connected to the front side and the rear side of the inner wall of the heating box correspondingly, and adjusting air doors are fixedly connected to the sides, away from each other, of the two heat dissipation fences correspondingly. According to the utility model, hot air in the heating box is pumped out through the centrifugal exhaust fan, after the hot air is transferred through the pipeline, heat is dissipated through the heat dissipation holes and the heat exchange fins, the air guiding-out amount is controlled by the adjusting air door, the hot air is prevented from being gathered by the guide plate, the heating efficiency is improved, and the device has the energy-saving effect and also guarantees the processing quality.

The utility model discloses an efficient drilling device for hardware machining, and relates to the technical field of hardware machining equipment. Comprising a base, a vertical drilling machine and a square frame supported by four pneumatic push rods, clamping pieces with stepped grooves are symmetrically arranged at the bottom of the frame, the clamping pieces are hinged to a second shaft rod on the base through a first shaft rod and a connecting plate, and a spring piece riveted to the center of the base elastically supports the bottom of the connecting plate. When the pneumatic push rod drives the frame to ascend and descend, the clamping pieces are driven by the connecting plates to be opened and closed, elastic supporting is provided by the spring pieces, vertical pressure and vibration are converted into horizontal clamping force during drilling, and multi-directional fixing is formed in cooperation with the telescopic clamping jaws on the frame. According to the device, self-adaptive clamping under the vibration working condition is achieved through the elastic linkage structure, the stepped groove adapts to different workpiece specifications, the problem that a traditional clamp is prone to loosening is effectively solved, clamping stability and operation convenience are both achieved, and the drilling precision and the production efficiency are remarkably improved.

The application discloses a quartz piece vacuum adsorption fixing device and relates to the technical field of quartz piece processing. The quartz piece vacuum adsorption fixing device comprises an adsorption table, the adsorption table comprises a pedestal, a funnel cavity formed in the interior of the pedestal, a table plate fixedly connected to the top end of the pedestal, a mosquito coil-shaped spiral channel formed in the interior of the table plate, a catheter fixedly connected to the side surface of the table plate and in communication with the outer end port of the spiral channel, rubber through strips inserted into the spiral channel and the catheter, and a plurality of air channels uniformly formed in the interior of the table plate along the spiral path of the spiral channel, and the middle part of each air channel is in communication with the spiral channel. By selectively blocking or opening some air channels through the movement of the rubber through strips, the size range of the quartz piece to be fixed can be matched with the unblocked air channels, the type changing time of the adsorption table is greatly shortened, the equipment investment cost is reduced, and the production efficiency is improved.

A saw blade punching tooth combined die, the die comprises a bottom table, a bottom plate, an upper clamp plate, a lower clamp plate, a rotating plate and a top table, a plurality of size concave dies are carried through the rotating plate between the upper and lower clamp plates, precise positioning is realized by the interference fit of the ratchet disc and the ratchet groove, the rotating plate outer wall tooth groove corresponds to the scale bar of the upper clamp plate, the rotating angle is directly controlled, the top table quickly replaces the punch plate through the clamping plate, and the punch tooth processing is completed in cooperation with the convex die and the concave die; the bottom table storage groove integrates the idle punch plate, and part loss is avoided. The present application solves the problems of low die changing efficiency, positioning deviation and single function of the traditional die, realizes the rapid switching and high-precision processing of multiple specifications of tooth shape, and improves the flexibility and reliability of saw blade production.

The application discloses a high-precision high-speed running casting machine, which comprises a base, an extruding device connected to the top of the base, a feeding hopper connected to the top of the extruding device, a temperature controller connected to one side of the base, a sampling heat preservation box connected to one end of the extruding device, a shunt pipe connected to one side of the sampling heat preservation box, a fixed side plate connected to one side of the base, a discharging mechanism connected to one end of the shunt pipe, heat preservation mechanisms connected to the two sides of the discharging mechanism, a heat absorption pipe connected to one side of the heat preservation mechanism, a filtering unit connected to one end of the heat absorption pipe, an exhaust pipe connected to the other end of the heat absorption pipe, a cooling chamber connected to one end of the exhaust pipe, and a negative pressure fan connected to the inner wall bottom end of the cooling chamber. The application guarantees the machining precision, effectively improves the debugging efficiency, reduces the labor consumption and raw material waste, effectively reduces the energy consumption, is energy-saving and environment-friendly, and guarantees the machining quality.

The utility model discloses a kind of angle-adjustable coating machine spray cooling device, more specifically relates to coating equipment technical field, including two mounting seats, between two mounting seats is provided with spray pipe, the surface of spray pipe is throughly provided with multiple connecting pipes, the side of mounting seat is provided with adjusting mechanism, adjusting mechanism includes the rotary groove opened in the inside of one mounting seat, rotary groove is rotatably provided with swivel ring, the side of swivel ring is fixedly connected with spray pipe surface, swivel ring surface is fixedly provided with connecting ring, the side of connecting ring is fixedly provided with handle, the surface of connecting ring is fixedly provided with connecting strip. The utility model is accurately controlled spray pipe angle by adjusting mechanism, realize the adaptation of cooling range and intensity, and it is convenient to disassemble to spray head, simultaneously, the spray head of different spray range is adapted, and the adaptability of device to diversification production demand is improved.

The application relates to the technical field of 40Mn2 steel processing, in particular to a method for reducing the surface hardness of 40Mn2 steel. The method comprises the following steps: establishing a cycle correction period according to the parameters of a round steel to be processed; generating a plurality of feedback time nodes according to the cycle correction period, and obtaining a processing evaluation value of a previous cycle correction period according to the feedback time nodes; generating a correction instruction according to the processing evaluation value, and correcting the processing parameters in a next cycle correction period according to the correction instruction. The processing process of the 40Mn2 round steel is dynamically corrected by establishing the cycle correction period, the surface hardness of the 40Mn2 round steel is reduced by reducing the finish rolling temperature, the center hardness and the surface hardness of the processed 40Mn2 round steel are more uniform, so that subsequent sawing is facilitated, and thermal wear is reduced. The surface hardness of the 40Mn2 round steel is reduced by prolonging the pit entry cooling duration, so that the center hardness and the surface hardness of the processed 40Mn2 round steel are more uniform.