54results about How to "Achieve circumferential rotation" patented technology

The invention discloses a lead frame automatic chip loading machine. The key points of the technical scheme are that the lead frame automatic chip loading machine comprises a rack and a material loading device, a track conveying device, a welding device and an automatic chip loading device which are arranged on the rack in turn. The track conveying device comprises conveying tracks which are connected between the material loading device and the automatic chip loading device, a cover shell which closely covers on the conveying tracks and a push mechanism which is used for pushing a lead frame along the conveying tracks to the automatic chip loading device from the material loading device. The upper surface of the cover shell is provided with material feeding grooves and a welding groove which are communicated with the internal part of the cover shell. The material feeding grooves are arranged along the conveying direction of the lead frame and can be stretched into by the push mechanism to push the lead frame. The welding groove is arranged below the welding device and can be used for the welding device to perform welding operation. A segment of conveying tracks arranged in front of the welding device is provided with a heating plate and a gas supply device used for providing protective gas to the inside of the cover shell. Loss of heat can be reduced by the cover shell, and the protective gas is inflated and then heating oxidation of the lead frame can be reduced.

The invention discloses a chestnut thorny-shell removing apparatus and a chestnut thorny-shell removing method. The invention mainly relates to the chestnut thorny-shell removing apparatus which comprises a material feeding device, a clamping and cutting device, and a material fetching device; second material feeding is carried out by the material feeding device through a conveyor belt and a material pushing mechanism; the clamping and cutting device pushes a sawtooth cutter to an appropriate position via a telescopic cutting mechanism, and is in cooperation with clamping and circumferential rotation of a clamping mechanism so as to realize circumferential cutting; and separated chestnuts and thorny shell are then pushed into a material receiving box via a pusher. The chestnut thorny-shell removing apparatus and the chestnut thorny-shell removing method provided by the invention realize continuous cutting of thorny chestnut balls by carrying out conveying, clamped cutting and pushing so as to further achieve highly efficient operations.

The invention discloses through-flow turbine water guide mechanism internal and external ring coaxial processing equipment and a processing method. The processing equipment comprises a base and a numerical control dividing disc, wherein a connecting plate and an oblique cylinder are arranged at the top of the numerical control dividing disc; one end of the connecting plate is hinged to the numerical control dividing disc; the other end of the connecting plate is connected with an output end of the oblique cylinder; a mounting disk is arranged on the connecting plate; and a numerical control knife rest is erected on the outer side of the base. The processing method comprises the following steps: a locking block is moved; an internal ring and an external ring of a water guide mechanism are fixed on the mounting disk; a jacking cylinder and the oblique cylinder act; a hole drilling knife of the numerical control knife rest and guide vane mounting holes of the to-be-processed internal ring and external ring are on the same horizontal plane; the hole drilling knife of the numerical control knife rest stretches out; the hole drilling knife rotates to realize one-time processing on the guide vane mounting holes of the internal ring and the external ring; the hole drilling knife retracts under the action of a feeding device and stops rotation; a sliding cylinder, the jacking cylinder and the oblique cylinder reset; and the internal ring and the external ring of the water guide mechanism are dismantled.

The invention discloses a modularized cylindrical vertical type rotary bicycle parking device which is a modularized assembled vertical type rotary bicycle parking device. The device mainly solves theproblem that a large space is occupied when bicycles are parked on a street, in a community and indoors. The device is provided with a spliced protection part (1), a modularized cylinder part (2) isconnected through strut connecting pieces (203), after the bicycles are pushed into rear wheel grooves (402), front wheels of the bicycles are locked through front wheel self-locking devices (401), the bicycles vertically stand through tension of constant-force springs (301), and the bicycles are stored; and the bicycle taking process is on the contrary and similar. A device base part (5) can rotate, the inner portion depends on a thrust ball bearing (502) and a deep groove ball bearing (505) to rotate and bear pressure, and a universal ball is installed below each rear wheel groove so as to reduce the stress of the rear wheel groove. The device can be used in a single-module mode and can be used in a modularized assembled mode as well.

The invention provides a multi-size chip mounting device, comprising a supporting bottom plate, supporting cross bars, U-shaped fixing rods and mounting nozzles, wherein two fixing seats are arrangedon the supporting bottom plate, two supporting cross bars vertical to the fixing seat are installed on the fixing seat, a first lead screw is arranged on one side of the supporting cross bar, one endpart of the first lead screw is connected with a first motor, at least one first lead screw sleeve capable of moving relative to the first lead screw sleeves the first lead screw, a first slide blockis connected with each first lead screw sleeve, the first slide blocks are slidably connected to first slide rails above the supporting cross bars, and at least one first slide block is arranged on each first slide rail. The multi-size chip mounting device provided by the invention can realize the position change of front and rear, left and right, and up and down of the mounting nozzle, can also realize multi-angle rotation of the mounting nozzle in the circumferential direction, and can accurately locate the positions of the ships according to chips with different sizes, so that the mountingnozzle accurately suck the chips and place the chips at designated positions.

The invention discloses an engine piston mechanism which comprises a piston head, a piston pin seat fixedly connected to the end surface of the piston head, and a piston skirt part arranged at the periphery of the piston pin seat, wherein the piston skirt part comprises two support parts and a roller column; the two support parts are fixedly connected to the end surface of the piston head and are symmetrically arranged at the two sides of the piston pin seat along the axial direction of the piston pin seat; and the roller column is fixedly connected to the support parts and is contacted with the wall of a cylinder in a rolling way when a piston makes reciprocating motion. The invention also discloses a machining method of the engine piston mechanism, and an engine and an automobile which are respectively provided with the engine piston mechanism. According to the engine piston mechanism, the piston skirt part and the wall of the piston are in rolling friction, so that the frictional loss of the piston skirt part and the wall of the cylinder can be reduced, and the fuel economy is improved. The engine piston mechanism is suitable for various automobile engines, and is further applied to various automobiles.

The invention discloses a mortar flat-laying device. According to the key points of the technical scheme, the mortar flat-laying device comprises a scraping plate and further comprises a counterweightseat with the horizontally-arranged bottom, a vertically-arranged height adjusting rod and a horizontally-arranged connecting rod mechanism. The height adjusting rod is fixed to the upper portion ofthe counterweight seat. The connecting rod mechanism is constituted by two or more connecting rods which are hinged sequentially. One end of the connecting rod mechanism is rotatably fixed to the topend of the height adjusting rod, and a first shaft sleeve is arranged at the other end of the connecting rod mechanism. A connecting rod is formed at the top end of the scraping plate in an upward extending mode, and the connecting rod is rotatably and fixedly connected into the first shaft sleeve in a sleeved mode. The bottom end of the scraping plate is lower than the bottom end of the counterweight seat by 8-20 mm. According to the mortar flat-laying device, the laying efficiency of mortar can be improved, and the mortar thickness is more uniform.

The invention provides an anchor rod mounting work platform used for a tunnel. The anchor rod mounting work platform comprises a work platform body, a rotary device used for driving the work platformbody to circumferentially rotate, a horizontal oil cylinder used for pushing the work platform body to move horizontally, a telescoping device used for controlling the pushing stroke of an anchor rodmounting device, a platform base used for making the anchor rod mounting work platform body connected with a tunnel anchor platform flatcar, and an anchor rod library used for better saving the time for an operator to take an anchor rod. In the anchor rod mounting work platform, the work platform body is controlled by the rotary device, the horizontal oil cylinder (16) and the telescoping device to circumferentially rotate, horizontally move and extend up and down respectively so that the anchor rod mounting device used for mounting the anchor rods can move on the X axis, the Y axis and the Zaxis relative to the platform base, and it is achieved that the anchor rods are mounted on the sections at any angles and heights in a tunnel obtained after explosion.

The invention provides a ball spline bearing and belongs to the field of bearings. According to the invention, defects such as late delivery date caused by low transmission efficiency, short service life and complex structure in the prior art are solved. The ball spline bearing comprises a ball spline shaft, a ball splined hub and two bearing pedestals. The ball splined hub contains a jacket, a retainer and several sets of balls. The retainer is interference assembled in the jacket. The balls are symmetrically installed on the retainer and bulge out over the inner surface of the retainer. The balls and a rolling groove are tangent and the ball spline hub can reciprocate in a straight line. The two bearing pedestals contain a first bearing pedestal and a second bearing pedestal. The first bearing pedestal is installed at one end of the ball spline shaft. The second bearing pedestal is mounted at the other end of the ball spline shaft. A seal ring is arranged at two ends of the ball spline hub and contains a framework and a rubber ring. The ball spline bearing has advantages of high transmission efficiency, long service life, simple structure and the like.

The invention discloses a language discipline writing teaching display frame, and belongs to the technical field of teaching equipment. The language discipline writing teaching display frame comprisesa display plate, a display plate angle adjusting device and a display plate protection device; the display plate comprises a frosted glass plate and an illumination plate; a plate frame is arranged outside the display plate; multiple illumination lamp tubes are uniformly arranged on the illumination plate; the frosted glass plate is fixed on the outside surface of the illumination plate; a sliding groove is arranged at the upper and lower side of the plate frame; furthermore, a plate eraser is glidingly connected in the sliding groove; a reset spring is arranged at the right side of the plateeraser and the frosted glass plate; convenient and rapid teaching display can be realized; multi-angle adjustment can be carried out; displaying can be smoothly carried out while the display frame isconvenient for students to watch; the display effect and the teaching efficiency are increased; furthermore, the display frame has the protection device; sun and rain are kept out for a user and thedisplay plate; furthermore, the space is not occupied; and the problem that the display plate cannot be effectively protected when the display plate is used outdoors can be effectively solved.

The invention discloses an automatic following shot machine for outdoor special effect cinematography. The automatic following shot machine comprises a vehicle body and a camera, wherein the bottom of the vehicle body is connected with a moving mechanism for moving the device, the middle portion of the vehicle body is provided with an adjusting mechanism for controlling multi-directional following shooting of the camera, and the moving mechanism is connected with a control mechanism for driving the adjusting mechanism to operate; and the adjusting mechanism comprises a fixing seat, the fixing seat is arranged in the middle portion of the vehicle body through a through groove, a mounting sleeve is rotationally arranged on the fixing seat, and a supporting column is slidably arranged on the top of the mounting sleeve. According to the automatic following shot machine for outdoor special effect cinematography, the movement of the camera in different directions is realized by utilizing the movement process of the device, and when the movement speed changes, the movement speed of the camera can be adaptively adjusted, so that the adverse effect caused by the fact that the movement speed of the camera cannot be adjusted in time is effectively avoided.

The invention relates to the technical field of laser cladding equipment, in particular to a supersonic vibration multidimensional influence laser cladding device and method. The device comprises a rack, a mechanical arm part, a cladding chuck part, a coupling supersonic system part, a rotating table system part, and a control cabinet, wherein the mechanical arm part, the cladding chuck part, thecoupling supersonic system part, and the rotating table system part are arranged on the rack, the mechanical arm part is provided with a cladding head, the cladding head can do multidimensional motion, one end of the coupling supersonic system part is connected with the rotating table system part, the other end of the coupling supersonic system part is connected with the cladding chuck part, the cladding chuck part is provided with a cladding part, the coupling supersonic system part drives the cladding part to do supersonic composite vibration, the rotating table system part drives the cladding part to rotate, the control cabinet is in electrical connection and controls the mechanical arm part, the coupling supersonic system part and the rotating table system part, any-direction supersonic vibration influences can be loaded to a cladding way, the influence is multi-dimensional, the power is variable, the amplitude is controllable, and the efficient and automatic multidimensional supersonic auxiliary laser cladding platform can be built.

The invention discloses a device and method for efficient stirring for preparing of aluminum matrix composite. A planet gear train assembly is included and comprises a center gear, planet gears and aplanet carrier from interior to exterior. The center gear and the planet carrier are in gear meshing with the planet gears, and stirring needles are arranged on the planet gears. The center gear rotates and drives the planet gears to rotate through gears, accordingly, the stirring needles on the planet gears are driven to rotate, the planet gear train assembly can rotate on its axis and can also conduct revolution, rotation of the stirring needles on the planet gear train assembly is guaranteed, and meanwhile multi-stirring-needle circumferential rotation can be achieved. The planet gear trainassembly is utilized for aluminum matrix composite preparing, and the aluminum matrix composite preparing efficiency can be obviously improved.

The clamping workbench comprises a base, a rotatable mounting disc is arranged in the middle of the base, a supporting part used for machining the special-shaped parts is arranged on the upper surface of the mounting disc, and a plurality of first clamping mechanisms used for laterally clamping the special-shaped parts are arranged on the upper surface of the supporting part; the multiple first clamping mechanisms are distributed in an annular array mode, each first clamping mechanism comprises two first fixed sliding rails and a mounting plate, and the two first fixed sliding rails are fixedly mounted on the upper surface of the supporting part. Through rotation of the two first contact pressure heads and inclination change of the mounting plate, clamping points of the two first contact pressure heads are tightly attached to the outer wall of the special-shaped part, the problem that the special-shaped part is difficult to clamp is solved, and meanwhile stability is high.

The invention relates to a pipe type part drilling fixture. The pipe type part drilling fixture comprises a base fixed to an adaptive machine tool, a rotating frame is rotatably assembled on the base,the base and / or the rotating frame is provided with rotating scales used for measuring the rotating angle of the rotating frame, the rotating frame is provided with a clamping structure used for cooperatively clamping and fixing a to-be-machined pipe type part, and the clamping structure comprises at least one movable clamping part; and the pipe type part drilling fixture further comprises a chuck used for driving the to-be-machined pipe type part to rotate, the chuck and the movable clamping part are arranged in a spaced mode in the axial direction of the chuck, and the rotating frame and / orthe chuck is provided with rotating scales used for measuring the rotating angle that the chuck drives the to-be-machined pipe type part. According to the pipe type part drilling fixture, operation is convenient, the structure is simple, the machining precision is high, machining of holes of the pipe type part in different angles in the circumferential direction and axial direction can be achieved, and the high practicability is achieved.

The invention discloses a plastic particle screening device. The device comprises a base, wherein two supporting columns are arranged on the base, a main shaft is arranged on the supporting columns, ascreening unit is fixed on the main shaft, the screening unit comprises an outer cylinder body fixedly arranged on the main shaft and a sieve cylinder detachably arranged in the outer cylinder body,an end cover is further arranged on the main shaft, the end cover is attached to the opening of the outer cylinder body, two ends of the sieve cylinder are attached to the bottom of the outer cylinderbody and the end cover, and a driving mechanism used for driving the main shaft displacement is arranged on the base. According to the screening device, the main shaft is matched with guide grooves on the support columns, axial movement can be realized while the circumferential rotation of the sieve cylinder can be realized, and then reciprocating motion in multiple directions is generated, so that the screening efficiency is greatly improved, and meanwhile, the sieve cylinder can be disassembled, and different screens can be conveniently replaced, so that plastic particles with different sizes can be screened.

The present invention is a mounting device for multi-size chips, comprising a supporting base plate, a supporting cross bar, a U-shaped fixing bar and a mounting suction nozzle, two fixing seats are arranged on the supporting base plate, and two A support bar perpendicular to the direction of the fixing seat, a first screw rod is provided on one side of the support bar, and a first motor is connected to one end of the first screw rod, and the first screw rod is sleeved with At least one first screw sleeve movable relative to the first screw rod, each first screw sleeve is connected with a first slider, and the first slider is slidably connected to the first slider above the support cross bar On the rails, at least one first slider is provided on each first slide rail. The present invention can realize the position transformation of the mounting suction nozzle front and rear, left and right, and up and down, and can also realize the multi-angle rotation of the mounting suction nozzle in the circumferential direction, and can accurately locate the position of the chip according to the chips of different sizes, so that the mounting The suction nozzle picks up the chip accurately and places the chip in the designated position.

The invention discloses a lead frame automatic chip loading machine. The key points of the technical scheme are that the lead frame automatic chip loading machine comprises a rack and a material loading device, a track conveying device, a welding device and an automatic chip loading device which are arranged on the rack in turn. The track conveying device comprises conveying tracks which are connected between the material loading device and the automatic chip loading device, a cover shell which closely covers on the conveying tracks and a push mechanism which is used for pushing a lead frame along the conveying tracks to the automatic chip loading device from the material loading device. The upper surface of the cover shell is provided with material feeding grooves and a welding groove which are communicated with the internal part of the cover shell. The material feeding grooves are arranged along the conveying direction of the lead frame and can be stretched into by the push mechanism to push the lead frame. The welding groove is arranged below the welding device and can be used for the welding device to perform welding operation. A segment of conveying tracks arranged in front of the welding device is provided with a heating plate and a gas supply device used for providing protective gas to the inside of the cover shell. Loss of heat can be reduced by the cover shell, and the protective gas is inflated and then heating oxidation of the lead frame can be reduced.

The invention discloses an online image detection system for bottle caps, which comprises a flat turntable, on which several vertical cylindrical carriers are arranged; the turntable is provided with vertical through holes corresponding to each carrier, and the through holes are connected with the The corresponding carriers have a coaxial center, and the inner diameter of each through hole is equal to the inner diameter of the bottle cap opening; a vacuum suction cup is provided directly above a certain carrier for absorbing the bottle cap in the carrier, and a flat circle is arranged on the top of the vacuum suction cup. Disc-shaped suction cup base, the top of the suction cup base is connected to a vertical pipe through a rotary joint, and the vertical pipe is connected to a horizontal support. The support is equipped with a lifting drive device that drives it to lift vertically; A gear ring with a coaxial base, the gear ring is equipped with a rotating drive device to drive it to rotate; a camera device with the lens facing upward is provided directly under one of the above-mentioned vehicles. The bottle cap online image detection system of the present invention can drive the bottle cap to rotate in the circumferential direction during the image detection process, so as to facilitate the image detection of the bottle cap.

The invention relates to a water-cooling bearing box end cover with a good sealing effect, and belongs to the technical field of bearing cooling. The water-cooling bearing box end cover comprises an end cover body, the end cover body is provided with sleeving stepped holes, and a plurality of first sealing rings are embedded in the inner wall of the sleeving stepped hole with the smallest diameter; a second sealing ring is further embedded in one end, far away from a bearing box, of the end cover body, and the second sealing ring is detachably pressed against the end cover body through a pressing cover; an annular water channel is further arranged in the end cover body, and a plurality of water through holes communicating with the annular water channel are further formed in the end, close to the bearing box, of the end cover body. and a sealing gasket is arranged at the end, close to the bearing box, of the end cover body, the sealing gasket is attached to the end cover body, a plurality of butt-joint flanges are integrally arranged on the sealing gasket, and the butt-joint flanges surround the sleeving stepped holes, the water through holes and connecting screw holes used for connection in the end cover body in a one-to-one correspondence mode. The water-cooling bearing box end cover with the good sealing effect is simple in structure, convenient to assemble and disassemble, good in cooling effect and high in oil leakage prevention capacity.

The invention relates to the field of sports facilities, and provides a dance barre device and a dance training room. The dance barre device and the dance training room aim at solving the problem that an existing dance barre cannot be suitable for different users or the different using states of a same user. The dance barre device comprises a first standing rod, a second standing rod and a plurality of stretchable cylinders, wherein first standing rod, the second standing rod and the stretchable cylinders are mutually arranged at intervals, and all the stretchable cylinders are fixedly connected with sub-rods in the horizontal direction respectively. All the sub-rods can be driven by the corresponding stretchable cylinders to move to be at the coaxial position or the staggered position in the vertical direction. The dance barre device also comprises a filler strip capable of elastically being stretched and shortened, and the two ends of the filler strip are rotationally connected to the end of the first standing rod and the end of the second standing rod respectively, and can rotate around the rotating axis which is parallel to the axes of the sub-rods. A plurality of connecting ring sets are fixedly arranged in the length direction of the filler strip at intervals; all the sub-rods are correspondingly and rotationally matched in the corresponding connecting ring sets respectively. The dance barre device has the advantage that the dance barre device can be suitable for different users or the different using states of a same user.

The present invention discloses a power generator rotor vertical maintenance auxiliary support device which comprises a bottom plate. The bottom of the bottom plate is symmetrically provided with four universal wheels. The top of the bottom plate is provided with two clamp plates, a bayonet is formed between the two clamp plates, and a rotation rod is matched in the bayonet. Bolts are matched between the rotation rod and the clamping plates. The top of the rotation rod is provided with an embedded hole. A roller bearing is matched in the embedded hole. A circumferential direction rotation rod is matched above the rotation rod. The lower end of the circumferential direction rotation rod is matched with an insertion rod which is matched in the roller bearing. A rotor axis positioning device is matched on the circumferential direction rotation rod. According to the device, the rotor of a power generator can be positioned well, the circumferential direction rotation of the power generator rotor can be realized at the same time, the maintenance is convenient, the power generator rotor can be vertically placed to conveniently inspect the internal part, the missed maintenance is avoided, and the times of maintenance are shortened.

The invention relates to the technical field of mechanical engineering and automation, in particular to an attracting, lifting and rotating device. The device comprises a jig attracting block, a rotating mechanism and a lifting mechanism. The end face, suitable for attracting a jig, of the jig attracting block is provided with a magnetic attraction part. The rotating mechanism comprises a driven rotating wheel coaxial with the jig attracting block, a driving rotating wheel connected with the driven rotating wheel through a conveying belt and a first driving motor connected with the driving rotating wheel; the driving rotating wheel is rotatably arranged on a vertical plate, the jig attracting block penetrates through the vertical plate, and the end, penetrating out of the vertical plate and located on the same side as the driving rotating wheel, of the jig attracting block is connected with the driven rotating wheel. The lifting mechanism comprises a pair of guide pillars, a lead screwarranged between the guide columns and a connecting frame in threaded connection with the lead screw; the connecting frame slidably sleeves the guide pillars; the upper end of the lead screw is connected with a driving assembly suitable for driving the lead screw to rotate.

The invention provides a projector hanging bracket, and belongs to the technical field of projection auxiliary equipment. The projector hanging bracket comprises a first fixing plate and a second fixing plate; a push rod motor is fixed to the first fixing plate; a first mounting plate is fixed to the end of an output shaft of the push rod motor; a first servo motor is fixed to the first mounting plate; a second mounting plate is fixed to the end of an output shaft of the first servo motor; a third mounting plate is arranged on the second mounting plate; a translation mechanism is arranged on the second mounting plate; the translation mechanism comprises a second servo motor, a first gear, a second gear, a first rack, a second rack, a first strip-shaped sliding block and a second strip-shaped sliding block; the third mounting plate is provided with a fine adjustment mechanism; and the fine adjustment mechanism comprises a first support, a second support, a third servo motor, a fourth servo motor, a first polished shaft, a second polished shaft, a first shaft sleeve and a second shaft sleeve. According to the invention, the position of a projector is adjusted, so that images can be projected more clearly and accurately.

The invention discloses a sonar tool for detecting the shape of a salt cavern cavity, which comprises a power part, a guide part and a detection part, and is characterized in that the power part comprises two groups of motors, the guide part comprises a rotating part, and the detection part comprises sonar; the power part is used for providing steering and detection power for the tool, the guide part is used for driving the detection part to steer, and the detection part is used for sending and receiving sound waves for detection; and the two groups of motors are permanent magnet motors, namely a permanent magnet motor I and a permanent magnet motor II, and are arranged in two sets of shells which are arranged up and down and are connected with each other respectively. By arranging an internal structure of the whole set of device, a rotating device is more flexible, and mechanical rotation can be realized under electric control, so that the shape and the volume of a communicated salt cavern cavity can be accurately determined, and the requirement of a tool for rapidly measuring the shape and the volume of the communicated salt cavern cavity in the prior art is met.

The invention discloses a cleaning tool for dredging a plugged container. The cleaning tool has a sleeve that can be butted on the plugged container, and a cleaning tool which is inserted into the sleeve and extends out of the sleeve at the front end and the rear end respectively. A long rod, the front end of the long rod can extend into the blocking container, and a deformation mechanism that can radially deform with the axial displacement of the long rod is connected between the front end of the long rod and the sleeve , the deformation mechanism is used to clear the blockage in the blockage container. The present invention can effectively clear the blockage in the container without emptying the container. Of course, this kind of clearing operation is also applicable to the emptying container, and has the characteristics of convenience, high efficiency, labor saving, cost saving and the like.

The invention relates to electric resistance welding integrated equipment for a fuel tank filler. The equipment comprises a welding head assembly and a clamping assembly, wherein the welding head assembly comprises a first electrode and a second electrode matched with the first electrode; each of the first electrode and the second electrode comprises at least one electrode tip, and welding machining of at least one welding spot is completed each time; the clamping assembly comprises a rotary clamping jaw, and the rotary clamping jaw is connected with the driving mechanism and is used for clamping and adjusting the workpiece in the horizontal direction and the vertical direction and driving the workpiece to rotate. The working face contours of the electrode tip of the first electrode and the electrode tip of the second electrode are matched with each other, and the first electrode and the second electrode are tightly attached to the workpiece from two sides of the welding position during working, so that the working face is attached to the contour of the corresponding to-be-welded face on the workpiece. The structural design of the electrode tip is optimized, and it is convenient tomatch the workpiece with the electrode tip by matching with a function that the clamping assembly can adjust the position of the workpiece randomly, so that the machining efficiency is improved whilethe degree of automation is improved.

The invention discloses a wellhead test system for a screw hydraulic impactor. The wellhead test system includes a rotating center pipe, a clamp cover, fixing bolts, upper balls, lower balls, a support cylinder, a sensor system, a support rod, fixing nuts, a spring, a pedestal, a weighing sensor, a data acquisition system and a computer. The system can realize wellhead vibration characteristic tests for a screw hydraulic impactor and test parameters include vibration frequency, vibration displacement, vibration acceleration and vibration impact force, so the system provides a theoretical basisand guidance for judging whether the screw hydraulic impactor meets conditions of reaching into a well.