177results about How to "Guaranteed distance" patented technology

The invention provides a cooperative mechanical arm self-adaptive obstacle avoidance method in a dynamic scene, which comprises the following steps of: 1, setting an initial pose and a target pose according to a work task of a cooperative robot, and performing global path planning in an initial environment; 2, an operator completes an assembly task in an assembly area, and the collaborative robot operates according to a preset route and completes the assembly task in a matched mode; 3, the depth camera obtains a human body skeleton and skeleton node information, and a human body bounding box is generated; 4, whether the distance between the arm bounding box and the robot is smaller than the safety distance or not is judged, and if yes, collision early warning is triggered; 5, a new collision-free track is re-planned based on the self-adaptive obstacle avoidance strategy of the artificial potential field method, and the mechanical arm moves according to the new track to avoid the obstacle; and 6, after the obstacle leaves the safety early warning range, the mechanical arm returns to the global path and finally arrives at the target point.

The invention is suitable for the field of drip irrigation equipment, and provides a large-area uniform-control and high-blocking-resistance irrigation emitter for drip irrigation. The irrigation emitter comprises an irrigation emitter shell; the water inlet part is embedded in the central part of the irrigation emitter shell; and the runner part is of a tooth-shaped reciprocating structure. According to the large-area uniform-control and high-blocking-resistance irrigation emitter for drip irrigation, firstly, the whole water flow enters the flow channel units through the first straight line sections and impacts on the vertical upstream face, and part of the water flow impacting the topmost part of the upstream face flows into the next flow channel unit through the first oblique line sections and the tooth fillet radiuses; at the moment, the water flow generates maximum energy dissipation at the tooth fillet radius, namely the tooth tip, so that the turbulent kinetic energy of the water flow in the flow channel unit is effectively improved, the maximum laying distance of the drip irrigation tape is greatly prolonged, and the blank of lack of ultra-long-distance laying of the irrigation emitter and the drip irrigation tape in China is filled.

The invention relates to full-automatic forming processing equipment for string-shaped food, which is characterized in that a stick feeding mechanism pushes sticks to the central position of a clamping part of a bar clamping mechanism, the sticks are rectified through a stick righting mechanism to ensure that the centers of the sticks are aligned with the centers of bars, and the stick feeding mechanism is matched with the bar clamping mechanism to realize stick penetrating operation; the stick feeding detection mechanism controls the in-place position of the front end of the stick, and the distance between the front end of the stick and the front end of the bar is guaranteed; the feeding mechanism continuously conveys bars to a clamping position of the bar clamping mechanism and is arranged on the left side of the bar clamping mechanism. The bar material transferring mechanism takes down the bar material subjected to stick penetrating from the bar material clamping mechanism and rotates the bar material to a bar material length detection position, and bar material length detection is achieved; the receiving and feeding mechanism before cutting and unfolding unloads the stick penetrating bars on the bar transferring mechanism and conveys the bars to a cutting position of the cutting and unfolding integrated mechanism; and the cutting and unfolding integrated mechanism realizes bisection of the bar and unfolding after bisection. According to the invention, integrated processing of skewering, bisection and unfolding is realized.

The invention provides an IGBT (Insulated Gate Bipolar Translator) device structure and a preparation method thereof. The preparation method comprises the following steps: forming a plurality of gate trenches in an active region, and forming a gate oxide layer and a polycrystalline silicon layer; forming a grid line mask pattern; forming a polysilicon gate line, and reserving a gate line mask pattern on the polysilicon gate line; a hard mask medium is deposited, a first window and a second window which expose the surface of the active area are formed, and the second window exposes the grid line mask pattern on the grid line; etching is carried out, based on the etching selection ratio, the semiconductor substrate in the first window is partially removed to form an emitter region contact hole, and the grid line mask pattern in the second window is not removed to protect the grid line; and removing the grid line mask pattern in the second window by a wet method to form a grid line contact hole. According to the invention, the preparation of the emitter region contact hole and the line contact hole only needs to use one mask plate for photoetching and etching, compared with the traditional process, one mask plate is effectively reduced, the process flow is simplified, the production period is shortened, and the production efficiency is improved while the tape-out cost is reduced.

The utility model belongs to the field of optical display, and particularly relates to a reading system, which comprises a first image source, a second image source, a third image source and a fourth image source, the first concave reflecting mirror is arranged opposite to the first image source; the spectroscope is arranged opposite to the first concave reflector, the light reflected by the first concave reflector enters the spectroscope and is reflected by the spectroscope to be emitted to the exit pupil, and a first image with a first focal plane depth is formed; the second image source emits light rays and is arranged opposite to the spectroscope, and the light rays emitted by the display enter the spectroscope and are reflected by the spectroscope to be emitted out; the second concave reflector is arranged opposite to the spectroscope, the light reflected by the spectroscope enters the second concave reflector, is reflected by the second concave reflector to enter the spectroscope, and is emitted to the exit pupil through the transmission of the spectroscope to form a second image with a second focal plane depth; the first focal plane depth and the second focal plane depth are both greater than 2m.

The invention discloses an attention neural network-based personnel ability automatic evaluation method and system. The method comprises the following steps of: dividing an ability evaluation data set # imgabs0 # into a training set # imgabs1 #, a verification set # imgabs2 # and a test set # imgabs3 #; setting a plurality of different neural network configurations to form a configuration set # imgabs4 #; the obtained hyper-parameter # imgabs5 # is selected, and a neural network model # imgabs6 # is initialized; using a training set # imgabs7 # to train a neural network model # imgabs8 # obtained through initialization; after a # imgabs9 # round is carried out, the neural network model trained in the # imgabs10 # round is recorded as # imgabs11 #, a verification set # imgabs12 # is used for evaluating the trained model, and the neural network model and the evaluation result after each round of training are stored; the model obtaining the highest evaluation index on the verification set in N rounds is selected to be tested and stored on a test set # imgabs13 #; and until all hyper-parameters are used for initializing the neural network models and tested by a test set # imgabs14 #, deploying the neural network model with the highest model evaluation result for personnel ability grade evaluation work. And the requirement on multi-dimensional personnel ability portraits in a personnel evaluation scene is met.

The invention discloses a circular saw blade base body provided with a vibration reduction inner cavity and a method, solves the problem that the rigidity of a saw blade is reduced due to the arrangement of a vibration reduction groove of the saw blade in the prior art, and has the beneficial effects of effectively absorbing vibration and improving the rigidity of the saw blade. Comprising a first saw blade body and a second saw blade body, the inner side face of the first saw blade body is connected with the inner side face of the second saw blade body, and a damping groove is formed in the inner side face of at least one of the first saw blade body and the second saw blade body so that a circular saw blade base body can be provided with a damping inner cavity; the depth of the vibration reduction grooves is smaller than the thickness of the first saw blade body or the second saw blade body, and when the first saw blade body and the second saw blade body are provided with the vibration reduction grooves, the shapes of the vibration reduction grooves are the same or different, and the arrangement modes of the vibration reduction grooves are the same or different. The first saw blade body and the second saw blade body are both provided with vibration reduction grooves, and when the first saw blade body and the second saw blade body are in butt joint, the vibration reduction grooves are arranged in a staggered mode.

The invention relates to the field of seedling transplanting devices, and discloses a seedling transplanting device for forestry planting, which comprises a main frame body, turntables are fixedly connected to the upper sides of the left and right parts of the middle section of the main frame body, a seedling planting mechanism is arranged in the middle of the main frame body, and a soil gathering mechanism is fixedly connected to the middle of the rear end of the main frame body. The lower side of the front end of the main frame body is fixedly connected with two ploughing columns, and the rear sides of the upper ends of the ploughing columns are rotationally connected with guide cylinders. According to the seedling transplanting device, through cooperation of the main frame body, the seedling planting mechanism, the ploughing column, the electric push rod, the guide cylinder, the rotating disc and the seedling outlet, the problems that a large amount of manpower needs to be consumed and the transplanting efficiency is low when seedling transplanting is conducted manually are solved, and through cooperation of a soil gathering mechanism, a telescopic rod, a soil stacking plate, a hydraulic connecting rod and a ridge dividing plate, the seedling transplanting efficiency is improved. The problems that manpower consumed by pit filling and seed burying is large, the pit filling and seed burying effect may be reduced after workers are tired, and the seedling transplanting survival rate is not ideal are solved.

The invention relates to the technical field of power distribution terminal testing, provides a power distribution terminal testing device and method, and realizes comprehensive testing of a power distribution terminal by integrating remote measurement, remote control and remote signaling testing functions. And the standardized aviation plug connection port and the universal test port are used, so that the connection is simple and convenient, and the test error risk caused by improper connection is reduced. Three-remote function detection can be completed under the condition that operation and distribution network automatic circuit breaker complete equipment is not powered off, normal power supply of a power distribution network is not affected, and power supply reliability is not reduced; the device is respectively connected to the circuit breaker and the FTU through the aviation plug wires, a tester only needs to operate on the ground and does not need to work on a tower for a long time, and the device is portable, adopts a passive design and is convenient to work; testers complete testing work on the ground, the distance between the testers and primary equipment is guaranteed, and electric shock is avoided; primary equipment maloperation is prevented, the design of the current aviation socket has a circuit releasing function, and open-circuit operation of the current transformer is completely eradicated; and the misoperation of the primary circuit breaker caused by misoperation is avoided.

The invention belongs to the technical field of medical instruments, and particularly relates to an abdominal fascia suturing and puncturing device which comprises a suturing instrument, a puncturing thread hooking device and a damper. The stitching instrument is inserted into the puncture cannula, the upper surface of the first swing part abuts against the inner wall of the abdominal cavity side wall, the puncture thread hooking device pierces into the side wall of a puncture wound till an opening of a thread hooking groove moves to the position below a suture line, the puncture thread hooking device is pulled out, the lower end of the thread hooking groove abuts against the suture line, and the suture line is pulled out. The other end of the suture line is hooked out according to the same method, the puncture cannula, the connecting pipe and the like are pulled out, the two ends of the suture line are located on the outer side of the puncture wound, the middle of the suture line is left in the abdominal cavity and penetrates through the side walls of the two sides of the puncture wound, and the wound is sutured according to a conventional method. The fascia suturing work is completed; the suturing and puncturing device can solve the problem that instruments are frequently replaced in the operation process.

The utility model provides an improved tire building machine capsule drum, which belongs to the technical field of tire building capsule drums, and comprises a building capsule drum, a plurality of open slots, a hydraulic rod, an embedded strip and a soft rubber sleeve, and the inner end of the outer surface of the building capsule drum is provided with a plurality of open slots; when a tire is machined, the hydraulic rods extend to drive the embedded strips to move towards the outer side along the open grooves, so that the embedded strips partially extend out of the open grooves, the multiple embedded strips expand the soft rubber sleeve, and the outer diameter of the soft rubber sleeve is equal to the inner diameter of the tire needing to be manufactured; then the tire is processed and formed on the soft rubber sleeve, the soft rubber sleeve provides reliable protection for the tire bead part of the tire, the quality and the qualified rate of the tire product are improved, and after the tire is manufactured, the hydraulic rod shrinks, so that the embedded strip is completely accommodated in the open slot, and the tire is prevented from being damaged. And the soft rubber sleeve rebounds until the internal diameter is equal to the diameter of the molded capsule drum, so that the manufactured tire can be conveniently taken out.

The utility model discloses an anti-seismic whole-process measurement station-changing-free guiding device, which belongs to the technical field of accurate attitude measurement and guiding of tunneling equipment, and comprises a shield tunneling machine, a shield tunneling trolley, a total station, a laser emitting device, a multi-path double-screen laser target and a rearview prism, the shield tunneling trolley is arranged on one side of the shield tunneling machine, and the total station is arranged on the other side of the shield tunneling machine. The laser emitting device is mounted at the bottom of the total station; a relation is established through the total station, the adjustable laser transmitter, the multi-path double-screen laser target and the rearview prism, when the system works, the adjustable laser transmitter keeps a fixed transmitting angle to irradiate the multi-path double-screen laser target, the multi-path double-screen laser target collects a laser azimuth angle at a high frame frequency, and the total station measures the rearview prism in real time in a tracking mode. The method has the advantages that the system has shock resistance, and when the trolley vibrates, the optical path of the adjustable laser transmitter and the total station measure the rear-view orientation relationship synchronously change during vibration, so that the influence of vibration on the measurement result is solved.

The invention provides a weld leg structure, a glass assembly and a vehicle. The weld leg structure comprises a welding part, soldering tin and a limiting protrusion. The welding part is provided with a welding face used for being close to glass and has a first heat conductivity coefficient, and the soldering tin is fixed to the welding face. The limiting protrusion is at least partially fixed to the welding face, the limiting protrusion and the welding part are of a split structure, the limiting protrusion has a second heat conductivity coefficient, and the second heat conductivity coefficient is smaller than the first heat conductivity coefficient. According to the welding leg structure, the limiting protrusions are additionally arranged, the distance between the welding face and the glass in the welding process is guaranteed, it is guaranteed that the welding part does not make direct contact with the glass in the welding process, meanwhile, the thickness of soldering tin is guaranteed, and the welding strength is improved; the influence of sudden temperature change on the glass is reduced, and the problem of sheet cracking caused by welding is reduced.

The invention discloses signal magnetic ring detection equipment capable of ensuring a zero deflection angle of a motor and a detection method of the signal magnetic ring detection equipment. The signal magnetic ring detection equipment comprises a workbench, a disc seat for coaxial installation of a to-be-detected magnetic ring is rotatably installed on the workbench, a mechanical 0-degree scale line is formed on the disc seat, and the motor for driving the disc seat is installed on the workbench; the first sensor is mounted on the workbench through a first supporting rod, and the first sensor is arranged opposite to the circumferential surface of the to-be-detected magnetic ring; the second sensor is installed on the first supporting rod through a second supporting rod, the second sensor and the circumferential face of the disc base are oppositely arranged, and the second sensor and the first sensor are arranged in the radial direction of the disc base; and the controller is in signal connection with the motor, the first sensor and the second sensor. The problem that the zero deflection angle of a motor assembly is easily affected due to the fact that the magnetic field consistency cannot be guaranteed after the signal magnet ring of the motor is magnetized is solved.

The negative pressure structure comprises a blood collecting needle and a vacuum bag, the blood collecting needle comprises a needle handle, a needle tube, a sleeve and the vacuum bag, the sleeve is made of a flexible film material, the needle tube is arranged in the sleeve, and the needle tube and the sleeve are fixed to the end face of the needle handle. A fixing part A and a fixing part B are arranged at the two ends of the vacuum bag respectively and are made of hard materials, the fixing part A is provided with a bag inlet, the bag inlet is provided with an inner film, the fixing part B is provided with a bag outlet, and the bag outlet is provided with an outer film. The lower end of the sleeve is fixed to the fixing piece A. The needle tube, the bag inlet and the bag outlet are located on the same vertical line. The tip end of the needle tube can pierce the inner membrane to enter the cavity of the vacuum bag, air in the blood taking needle is emptied through the vacuum bag, it is ensured that an existing vacuum blood taking tube can be filled with 2 ml of blood, and waste caused by discarding of the first blood taking tube which is not filled with blood is avoided.

The present invention relates to a special-shaped water-soluble salt core and a manufacturing method and application, belonging to the technical field of internal combustion engine parts manufacturing. The salt core is annular, and the cross section of the salt core is special-shaped. The cross section of the salt core includes a top, a middle, and a bottom. The top is close to the piston top surface, and the top is semicircular; the bottom is arc-shaped, and the two sides of the middle are straight lines and arcs respectively. The arc side of the middle is closest to the combustion chamber, and the outer side surfaces of the top and the middle arc side are both provided with annular grooves. The special-shaped structure design of the salt core increases the surface area of ​​the salt core. After the salt core is dissolved in water, the surface area of ​​the inner cooling oil cavity formed near the piston head near the combustion chamber is increased, that is, the heat dissipation area is increased. After the cooling oil enters the inner cooling oil cavity, the cooling oil and the aluminum alloy of the piston head realize rapid heat exchange, and the heat exchange efficiency is increased by 5%-10% compared with the inner cooling oil cavity with equal cross-section.

The utility model relates to the technical field of gangway ladders, and discloses an adjustable gangway ladder assembly which comprises a gangway ladder body. The two sides of the accommodation ladder body are each provided with a handrail frame rod, the two handrail frame rods are each provided with a plurality of assembly parts, the positions of the assembly parts on the handrail frame rods are adjustable, the assembly parts are each provided with a rotary passing limiting part, and the height of the rotary passing limiting parts on the assembly parts is adjustable. The utility model provides an adjustable gangway ladder assembly which solves the problem that people walk on a gangway ladder and are prone to being concentrated in one area, and the falling risk is caused.

The utility model relates to the field of refrigeration pipelines, in particular to a fixing device for laying of refrigeration pipelines of a refrigeration house, and aims to solve the technical problems that in the prior art, the distance and the parallelism between the pipelines are inconvenient to control during laying, and the pipelines are prone to being damaged by equipment during fixing, the fixing device is characterized in that a pipeline groove is formed in the lower portion of a thick-edge plate, and the width of the pipeline groove is equal to the outer diameter of the pipelines; the thick-edge plate is connected with the thin-edge plate through a first sliding rail, a first sliding positioning plate is connected to the first sliding rail in a sliding mode and can slide and be locked on the first sliding rail, scales are marked on the first sliding rail, a reference pipeline is firstly fixed, and then the first sliding positioning plate slides on a pipeline groove of the thick-edge plate with the reference pipeline as the reference. The metal pipelines are buckled in the pipeline grooves of the first sliding positioning plate, the parallelism and the distance between the adjacent pipelines are guaranteed, positioning can be completed by buckling the pipeline grooves, clamping is not needed, the metal pipelines cannot be damaged, and when the pipeline distance is long, the second sliding positioning plate slides to extend the fixing range.

The invention relates to the technical field of pipeline welding, in particular to a variable-diameter annular automatic inner welding construction process. The construction technology comprises the following steps that a thick pipe, a taper pipe and a thin pipe are in butt joint, a variable-diameter annular automatic inner welding machine is placed in the thick pipe to move to a welding position, the direction of a driving wheel set is adjusted, so that driving wheel sets of driving mechanisms on the two sides of the variable-diameter annular automatic inner welding machine deflect by the same angle in the same side direction, the deflection angle of the driving wheel sets is smaller than 90 degrees, and welding is completed. Then a driving wheel set is started to rotate relative to a limiting mechanism so as to drive the driving mechanisms on the two sides and the welding mechanism to rotate in the thin pipe and the thick pipe in the circumferential direction correspondingly, and the first inner seam and the second inner seam are welded through the welding mechanism in the rotating process of the driving mechanisms; and performing external welding by using an external welding machine. The height of the welding gun can be adjusted, the distance between the welding gun and an inner seam can be guaranteed when the inner seam between the reducer union and a thick pipe and the inner seam between the reducer union and a thin pipe are welded, and then the inner seams with different diameters between the reducer union and the thick pipe and the inner seam between the reducer union and the thin pipe can be effectively welded.

The utility model discloses a lamb incubator device, which relates to the technical field of feeding equipment and comprises a front sealing plate, at least two side sealing plates and a top sealing plate. A containing cavity with an upper opening and a lower opening is formed in the interior of the front sealing plate and the side sealing plates after the front sealing plate and the side sealing plates are jointly enclosed; the front sealing plate and the side sealing plates are connected together through quick-release pieces. The top sealing plate comprises a fixed plate and an opening and closing plate, the fixed plate is rotationally connected with the opening and closing plate, and the fixed plate and the opening and closing plate are used for jointly sealing the upper opening; the front sealing plate comprises a front frame, a large frame door, a small frame door and a locking piece; the large frame door is rotationally connected to the front frame, and the locking piece is used for locking the relative position between the large frame door and the front frame. The lower end of the large frame door is provided with a lamb entrance and exit, and the small frame door is arranged at the lamb entrance and exit and rotationally connected to the large frame door. The front sealing plate, the side sealing plates and the top sealing plate are all made of metal materials. Cleaning, disinfection and movement are convenient, the lamb use space is guaranteed, and potential safety hazards are reduced.

The present invention provides a lens driving device, a camera device, and an electronic device that make it difficult for a current path part to fall off. According to one embodiment of the present invention, the lens driving device (1) comprises: a base assembly (12) having a base (20) and a terminal part (21) provided on the base 20; a lens support (30) for fixing the lens body; a driving part (50) generating a driving force for causing the lens support (30) to move relative to the base assembly (12); and a current path part electrically connecting the terminal part (21) and the driving part (50). The base (20) has a rectangular outer shape and a through hole at the center. The terminal part (21) has an external terminal part (121) electrically connected to an external power source and an internal terminal part (122) electrically connected to the current path part. The external terminal part (121) is arranged at a first corner (22a) of the rectangular base (20), and the internal terminal part (122) is arranged at a second corner (22b) adjacent to the first corner (22a).

The invention relates to the technical field of bottle cap processing, in particular to a rotary type line breaking and pad adding all-in-one machine which comprises a feeding device, a line breaking and knurling device, a pad adding device and a detection unit, a pad adding transition disc and a detection transition disc are arranged, and the structures of the pad adding transition disc, the detection transition disc, a line breaking and knurling guide disc and a pad adding guide disc are optimized; the gasket adding transition disc, the detection transition disc, the thread breaking knurling guide disc and the gasket adding guide disc all comprise the upper disc and the lower disc, a guide plate can be arranged between the upper disc and the lower disc, bottle caps are led into another disc from one disc, and therefore the thread breaking knurling process, the gasket adding process and the detection process are integrated into the same equipment, and the production efficiency is improved. The seamless connection of the production process is realized, and the production efficiency is improved.

The utility model relates to an adjustable and lengthened support connecting frame for an improved gun head for laser processing, which is characterized in that a socket extension rod (3) is formed by sleeving at least two sections of mutually nested sleeves, and a sleeving seam (31) surrounding the outer wall is formed at the sleeving position of the two adjacent sleeves; the bottom end of the extension pull frame (4) is provided with a ring opening which is sleeved on the outer wall of the socket extension rod (3), and the upper section of the extension pull frame (4) is connected with the lower end of the extension connecting frame (5) in an overlying mode. The length of the gun body and the length of the gun head are adjustably increased, the socket extension rod is connected and reinforced through the extension frame, motion interference of the gun head is avoided, and the laser precise machining quality is guaranteed. The laser machining gun head can be adjustably and accurately fed in place, the optimal distance and angle parameters of laser machining can be easily achieved, the additionally-arranged extending and supporting structures are provided with convenient and stable auxiliary extending mechanisms, installation, maintenance and adjustment are easy and fast, and when the installation structure needs to be cleaned, disassembly and assembly can be easily achieved through an embedded connection structure and a threaded connection structure.

The utility model discloses a capacitor which can meet the use requirements of heightening, heat insulation and electrode limiting. The capacitor comprises a first electrode, a second electrode and at least one insulating part of the capacitor; a first leading-out end of the first electrode and a second leading-out end of the second electrode are exposed out of the surface of the capacitor and are arranged in parallel up and down; the insulating part is arranged between the first leading-out end and the second leading-out end in a matched mode, the upper surface of the insulating part is provided with a slot for the first leading-out end to be inserted and matched, and the lower surface of the insulating part is matched with the second leading-out end in a positioning mode.

The utility model relates to pumping unit technical field, is a counterweight adjustable pumping unit, including beam pumping unit and the counterweight assembly that the balance horse head of beam pumping unit is connected together, and the counterweight assembly includes height adjusting assembly and counterweight assembly. The utility model is reasonable and compact in structure, sets up multiple adjusting holes, can adjust according to the stroke of beam pumping unit, when the stroke of beam pumping unit is 3 meters, the connecting hole of guide pipe and the adjusting hole of the lowermost connecting rod are installed together through connecting pin, so that the distance between counterweight assembly and ground when reaching the lowest point can be reduced, so that the stroke adjustment of counterweight assembly and pumping unit does not interfere with each other, the setting of adjusting hole can also fall counterweight assembly on the ground when maintaining, then disconnecting pin can separate the balance horse head and counterweight assembly, reduce the dismounting difficulty of counterweight assembly.

This utility model discloses a battery pack, including a housing. The housing includes a frame and a base plate connected together. Multiple cylindrical batteries and structural beams are arranged on the base plate. The cylindrical batteries are arranged along the extension direction of the structural beams. Explosion-proof valves on the cylindrical batteries are positioned close to the structural beams, with the distance between the explosion-proof valves and their projection onto the structural beams being 9-19 mm. This battery pack not only ensures battery safety in the event of thermal runaway but also improves the space utilization of the housing's storage compartment.

The utility model relates to the field of mine drilling, in particular to a gate flashboard trepanning tool which mainly comprises an external high-pressure sealed cabin and a drilling tool, a high-pressure plunger and a feed positioning baffle ring connected with the high-pressure plunger are arranged in the high-pressure sealed cabin, instantaneous pressure generated during trepanning operation is ingeniously utilized and converted into counter-acting force, and the high-pressure plunger and the feed positioning baffle ring are arranged in the high-pressure sealed cabin. The drilling tool is pushed to open a hole by utilizing the counter-acting force, and a part of instantaneous pressure is washed away, so that the situation that the hole opening tool is punched open under the huge instantaneous pressure due to the pressure effect, and gas and solution in a Christmas tree are leaked is avoided, and the operation safety is ensured.

The utility model relates to metal smelting equipment technical field especially relates to a kind of metal ingot edge scraping device. Including pedestal, lifting clamping mechanism, support and edge scraping mechanism, lifting clamping mechanism is located between two conveying chains, lifting clamping mechanism includes first telescopic part, ingot support plate and clamping piece, first telescopic part is fixed on pedestal, ingot support plate is fixed on the output end of first telescopic part upward extension, clamping piece is fixed on the end of ingot support plate, for clamping metal ingot, support is fixed with power component, the edge scraping mechanism is slidably arranged on support and located in the upside of metal ingot, power component drives edge scraping mechanism to move between two conveying chains, for scraping burr on metal ingot. After lifting clamping mechanism lifts the metal ingot on conveying chain, uses edge scraping mechanism to scrape burr on metal ingot, reduces the labor burden of worker.

The present disclosure relates to a surface mount technology (SMT) package and an SMT substrate, the SMT package including: an SMT substrate including an interconnection layer, an insulating layer having an arrangement area for the interconnection layer, and a mask layer on an upper surface of the insulating layer; a member including an insulator and an external electrode having at least a portion on a surface of the insulator opposite to the SMT substrate; and solder electrically connecting the interconnect layer and the external electrode to each other. The mask layer has an opening, and the SMT substrate further includes an insulating support supporting the external electrode in the opening such that the external electrode is spaced apart from the interconnect layer and the insulating layer.