34results about How to "Precise and stable movement" patented technology

The present invention provides a slope anchor hole straightening auxiliary device and a construction quality assurance method, comprising: a base, a slope body arranged on the base, an upper roadbed and a lower roadbed located on the base and respectively placed on both sides of the slope body, a plurality of guide components arranged on the upper roadbed and the lower roadbed, an operating table arranged on one of the guide components, an electric winch installed on the upper roadbed, one end of which is arranged on the electric winch. The slope anchor hole straightening auxiliary device and the construction quality assurance method can provide a stable and accurate operating plane on the slope body through the arranged guide components, positioning components and stabilizing components, so that the anchor drill on the operating table can reduce the influence of vibration on the integrity of the hole when working, and improve the accuracy of the anchor drill after the angle adjustment, thereby ensuring the straightening effect of the anchor hole.

The utility model relates to the technical field of bearing beam shearing force detection, in particular to a building bearing beam shearing force detection device which comprises a workbench, supporting legs are fixedly connected to the periphery of the lower end of the workbench, a control keyboard is fixedly connected to the middle of the front end of the workbench, and a reinforcing frame is fixedly connected to the rear portion of the upper end of the workbench. The right portion of the inner upper wall of the reinforcing frame is fixedly connected with two guide rods, the ends, away from the reinforcing frame, of the two guide rods are fixedly connected with the upper end of the workbench together, the left portion of the upper end of the reinforcing frame is fixedly connected with a height adjusting device, and the height adjusting device is slidably connected with the two guide rods. According to the building spandrel girder shearing force detection device, the height adjusting device is guided through the guide rod, the building spandrel girder shearing force detection device can adapt to spandrel girders with different heights, and the shearing force stamping structure can apply shearing force to the fixed spandrel girders, so that the whole building spandrel girder shearing force detection device can detect the spandrel girders with different sizes, and the applicability and the detection accuracy of the device are improved.

The present application relates to coffee cold extraction liquid ultra-high pressure extraction equipment technical field, specifically to a kind of coffee cold extraction liquid ultra-high pressure extraction equipment and extraction process, including extraction equipment ontology, the one side of the extraction equipment ontology is provided with liquid supplementing device, further include: for inductive material volume micro shrinkage change and automatically adjust extraction length of time inductive adjustment mechanism, the inductive adjustment mechanism includes conveying pipe.The present application is by being equipped with inductive adjustment mechanism and other components, by the cooperation between each component, the cooperation relationship that float ball inductive liquid supplementing flow change and drive connecting rod rotation, so that moving block can be controlled by position change extrusion block and the trigger state of extension block, further reached the effect that the device can be based on the volume micro shrinkage change of coffee cell rupture and realizes extraction end point automatic detection, without manually setting extraction time, adaptive different varieties, roasting degree and grind degree material, from root to solve the problem of traditional timing control exists extraction deficiency or over-extraction.

The present invention relates to the field of building construction technology, and specifically refers to an ultra-large intelligent tower crane and a construction method. A wind field environment monitoring unit is used to collect wind field information and tower crane status information under the working environment of the tower crane; a slant-stayed and slanted-hanging monitoring unit is used to identify the position of the tower crane hook so as to obtain the slant-stayed and slanted-hanging angles of the tower crane hook; a dynamic sensing unit for the safe operation area is used to obtain the relative positions of the boom, the hoisted object, and the construction personnel in the tower crane operation area; a group tower anti-collision unit is used to obtain the position deviation between the current tower crane and the surrounding tower cranes; a hoisting auxiliary guidance unit is used to collect the hoisting object position coordinates, the target position coordinates, and the tower body position coordinates; a sling is connected to the tower crane hook; and a control unit receives the parameter information collected by the above units and performs data processing. The tower crane of the present invention has multiple functions, can greatly improve the safety of tower crane operation and construction, and has extremely high efficiency in safe operation.

The utility model discloses a yarn disc control system, including frame, control unit, yarn disc, driving gear and driven gear, control unit fixedly set up on frame, yarn disc rotatable installation is in on frame, the output shaft of control unit is connected with driving gear fixedly, driven gear is connected with yarn disc, driving gear is engaged with driven gear. This yarn disc control system effectively avoided the problem of yarn disc slip, can stable accurate control yarn disc movement simultaneously, and long service life, and the installation and maintenance are convenient.

The utility model discloses an end socket KMC high-power laser groove follow-up control sliding table lifting system which comprises a laser cutting gun, a sliding table lifting device, a fixing base, a distance detector, a connecting base and a light filtering ring. The sliding table lifting device is installed on the fixing base, and the laser cutting gun is installed on a sliding base of the sliding table lifting device; the distance detector is installed on the fixing base through an installation support, the distance detector is located on the side face of the laser cutting gun and used for detecting the distance between the laser cutting gun and an object, and the light filtering ring is installed on the laser cutting gun through a connecting base and located on the light inlet side of the laser cutting gun. The light filtering ring does not make contact with the light inlet of the laser cutting gun, follow-up cutting of the laser cutting gun is achieved, cutting quality and cutting efficiency are improved, and the service life of the laser cutting gun is prolonged through the light filtering ring.

The invention relates to the field of intelligent buildings, in particular to a movable integral zero-descending-plate toilet which comprises a toilet body, a moving assembly, a drainage pipe set and a connecting mechanism, when the toilet in a variable space needs to be arranged, only the moving assembly needs to enable the toilet body to move on a floor, and the drainage pipe set is connected with the connecting mechanism; when the toilet body moves to the designed and planned position, the connecting mechanism is used for connecting the positions of products, such as a closestool and a wash basin, in the toilet body, so that the layout of the products in the toilet body can be changed along with the change of the position in the toilet body, and the toilet body moves on the floor, so that the layout of the products in the toilet body can be changed along with the change of the position in the toilet body. Compared with a traditional toilet, plate descending is not needed, the floor height is effectively increased, and the adaptability between the toilet and the variable space residence and the installation and maintenance efficiency are improved to a certain degree.

The utility model belongs to the technical field of glass guide rails, and particularly discloses a glass guide rail with a V-shaped guide structure, which comprises a shell, a second sealing ring is embedded at the edge of an opening at one end of the shell, a bottom cover is attached to the second sealing ring at one end of the shell close to the second sealing ring, and a sealing bolt is sleeved in the bottom cover. A first sealing ring is arranged between the sealing bolt and the bottom cover, a sleeve is arranged on the side, close to the second sealing ring, of the bottom cover, a plurality of open holes are formed in the side face of the bottom cover, a spring is sleeved with one end of the sleeve, an abutting block is attached to one end of the spring, a push rod is fixed to the side, away from the spring, of the abutting block, and a tray is fixed to the end, away from the abutting block, of the push rod. A rubber pad is embedded in the tray, the spring is matched with the abutting block to push the push rod outwards, second-time damping operation is prepared, and an open hole formed in the sleeve limits the flowing speed of hydraulic oil and slows down the moving speed of the push rod.

The adjusting mechanism comprises a supporting plate, an adjusting assembly is arranged on the supporting plate, the adjusting assembly comprises adjusting frames, adjusting rods, adjusting holes and inserting bolts, the adjusting frames are fixed to the two sides of the supporting plate, the adjusting rods slide in the multiple adjusting frames, the adjusting holes are distributed in the outer walls of the adjusting rods, and the inserting bolts are inserted into the adjusting holes. The outer side of the adjusting frame is provided with a fixing assembly, the fixing assembly comprises a fixing sleeve, a clamping rod, a movable groove, a clamping block, a push spring and a clamping ring, the fixing assembly adopts a combined structure of the fixing sleeve and the clamping rod, and through a self-locking mechanism of the clamping block and the push spring in the movable groove, the rapid locking function can be achieved without tools; the inclined plane design of the inner side of the clamping ring and the top end of the clamping block enables the locking process to be smoother, the pushing block and the clamping block which are subjected to round corner processing reduce operation resistance, and the ingenious matching of the sliding groove, the sliding sleeve and the threaded sleeve provides a convenient unlocking mode.

The utility model relates to the technical field of sealing parts, in particular to a dynamic sealing device which comprises a rotating body and further comprises a dynamic sealing mechanism arranged on the rotating body, the dynamic sealing mechanism comprises a supporting frame and a discharging end cover connected to the supporting frame in a sliding mode, the discharging end cover is buckled to the rotating body, and the rotating body is connected with the dynamic sealing mechanism in a sliding mode. A sealing assembly is arranged between the discharging end cover and the rotating body; the supporting frame is provided with a pressing assembly used for pressing the discharging end cover, and the pressing assembly abuts against the side, away from the rotating body, of the discharging end cover. The pressing assembly is used for pressing the sealing assembly on the rotating body through the discharging end cover, and therefore the sealing effect on the connecting position of the rotating body and the discharging end cover can be achieved. Meanwhile, the discharging end cover is in sliding connection with the supporting frame, when the sealing assembly is driven by the rotating body to be abraded to generate a gap, the pressing assembly drives the discharging end cover to slide towards the rotating body, and therefore the discharging end cover drives the sealing assembly to fill the gap to achieve sealing again.

The utility model relates to a fine adjustment tool rest which comprises a tool rest body, a dovetail groove is formed in the tool rest body, a dovetail sliding block is arranged in the dovetail groove in a sliding mode, and a tool handle containing groove is formed in the dovetail sliding block and used for containing a turning tool. The dovetail sliding block is provided with a turning tool fixing device used for fixing a turning tool placed in the tool handle containing groove to the dovetail sliding block. A first separating groove, a second separating groove, a third separating groove, a fourth separating groove, a fifth separating groove and a sixth separating groove are formed in the side face of the side, away from the dovetail groove, of the tool rest body to divide the tool rest body into a traction part, a first supporting part and a second supporting part. A locking device is further arranged and used for locking the first supporting part, the second supporting part and the dovetail sliding block. The traction part is provided with a distance adjusting screw rod, and the end, away from the traction part, of the distance adjusting screw rod can movably penetrate through the first supporting part and is in threaded connection with the distance adjusting knob. The fine adjustment device has the advantages of simple structure, convenience in operation, high fine adjustment precision, stability and the like.

The utility model discloses a bottle blank demoulding device which comprises an electric sliding rail, the upper surface of the electric sliding rail is fixedly connected with a mounting plate, the bottom surface of the electric sliding rail is provided with a limiting sliding groove, and the inner wall of the limiting sliding groove is connected with an electric sliding block in a sliding mode. According to the device, accurate and stable movement of the movable mold is achieved through combination of the electric sliding rail and the electric sliding block, the accuracy of mold closing and demolding actions is effectively improved, a lubricating system composed of the lubricating oil storage tank, the oil conveying pump and the high-pressure pipe is utilized, the contact face of the fixed mold and a bottle blank can be fully lubricated before demolding, friction force during demolding is greatly reduced, and the service life of the mold is prolonged. The surface of the bottle blank is prevented from being scratched or pulled, the appearance quality of the bottle blank is improved, meanwhile, power needed for demolding is reduced, the demolding force is uniform and can be accurately regulated and controlled through the demolding mode that the demolding plate is driven by the electric hydraulic telescopic rod, the demolding requirements of the bottle blanks of different specifications can be met, it is ensured that the demolding process is stable and efficient, and the production efficiency is further improved.

The utility model relates to the technical field of material stacking and conveying equipment, in particular to a universal stacking rack for an automatic guided vehicle and a manual cart. The device is mainly composed of a base, a first side plate and a second side plate which are arranged on the base at intervals, a plurality of rollers rotationally installed between the side plates, a driving piece on the first side plate, a telescopic rod of the driving piece and a material blocking plate at the end of the telescopic rod. The driving piece drives the material blocking plate to move, and material conveying can be flexibly controlled. The device has the advantages that materials can be accurately blocked and released, orderly management and positioning are achieved, abnormal material conveying is prevented, and controllability and accuracy are improved; the adjusting function of the striker plate is adaptive to materials with different sizes, so that the compatibility and the practicability are enhanced; all the components cooperate to limit the conveying width, the problems of workpiece slipping, displacement and steering are reduced, stability is improved, an efficient and stable solution is provided for industrial production material conveying, and the production quality and efficiency are improved.

This application relates to an interactive device and a gaming device. The interactive device includes: a back cover; a curved screen, which is disposed opposite to the back cover and bent towards the back cover, the curved screen and the back cover forming a functional cavity, and the curved screen has a through hole communicating with the functional cavity; a trigger switch, which is disposed in the functional cavity and fixed to the back cover; and a button assembly, including a button, a keycap, and an elastic body, the button passing through the through hole and connected to the trigger switch, the keycap being fitted onto the button and extending into the functional cavity, the elastic body being disposed between the keycap and the curved screen and surrounding the periphery of the through hole, the trigger switch or the back cover limiting the keycap along the axial direction of the through hole, so that the keycap presses against the elastic body. The interactive device of this application can eliminate the gap around the through hole of the curved screen where the button assembly is located, so that the area where the button assembly and the curved screen meet is basically seamless, satisfying the light-shielding requirements around the button assembly, and also effectively improving the consistency of the front appearance quality control of the curved screen.

This utility model discloses a blister tray production molding equipment, relating to the field of molding equipment technology. The utility model includes a molding equipment body, with a displacement component fixedly connected to the inner cavity of the molding equipment body. A material-picking component is movably connected to the surface of the displacement component. The displacement component includes slide rails fixedly connected to both sides of the back of the molding equipment body, with a slide rod fixedly connected to the inner cavity of one slide rail. This utility model, by setting up the displacement component and the material-picking component, achieves automatic material picking of the blister tray, eliminating the need for manual peeling and removal. The displacement component can drive the material-picking component to precisely move to the molding position. The material-picking component stably adsorbs the blister tray under the action of a vacuum pump using a vacuum suction cup, replacing the traditional manual material picking method, significantly improving material picking efficiency, reducing human resource waste, and solving the problem of low production efficiency caused by manual material picking in the prior art, thus helping to improve the overall molding efficiency of blister trays.

The invention relates to the technical field of laser printing equipment, in particular to a composite shielding workbench for selective laser sintering equipment, which comprises a selective laser sintering equipment body, a storage frame, a shielding workbench, a laser, a telescopic tool, a height adjusting tool, a guide tool, a rotating tool and a non-magnetic panel, the position of the non-magnetic panel in the material storage frame is convenient to adjust through the arrangement of the telescopic tool, layer-by-layer sintering printing is convenient to realize, and the guide tool is arranged at the bottom end of the non-magnetic panel, so that the movement of the non-magnetic panel is more stable and accurate, and the sintering printing quality is improved; a height adjusting tool is arranged on the selective laser sintering equipment body, the height adjusting tool is convenient to adjust the distance between the material storage frame and the shielding workbench, and abrasion caused by sliding between the material storage frame and the shielding workbench is prevented; and after the parts in the material storage frame are printed, the rotating tool can conveniently drive the material storage frame to rotate, so that the parts and powder in the material storage frame are dumped and discharged, and the operation efficiency is improved.

The utility model belongs to the technical field of bridge construction, and particularly relates to a hydraulic jacking demolding device which comprises a jacking machine base, a supporting cross beam, a translation oil cylinder, a translation cross beam, a connecting supporting rod and a jacking oil cylinder. The jacking device is reasonable and compact in structure, a stable supporting foundation is provided through the jacking machine base, stable and accurate movement is guaranteed through cooperation of the supporting cross beam and the translation cross beam, the translation oil cylinder flexibly and accurately drives the translation cross beam to adjust the jacking position, and stable transmission of power is guaranteed through the connecting supporting rod; and finally, the jacking oil cylinder generates jacking force according to needs to complete demolding, so that the efficient, accurate and reliable jacking demolding function is achieved through cooperative work of all the components, the bridge deck slab can be synchronously separated from the mold during demolding, the bridge deck slab is not prone to colliding with the mold, damage to components is avoided, and the appearance quality of the components is guaranteed.

The patrol robot comprises a main body, a plurality of ultrasonic sensors, a panorama camera, a thermal image camera, a plurality of gas sensors and a UWB (Ultra Wideband) positioning following module, the main body comprises an upper assembly component and a moving component used for driving the upper assembly component to walk along the surface of a medium, and the moving component is used for driving the upper assembly component to move along the surface of the medium. The upper assembly component comprises an installation platform, an electric cabinet and an upper assembly shell, the ultrasonic sensors are fixed to the installation platform through front, rear, left and right installation supports respectively, the panorama camera is arranged on the upper side of the front portion of the upper assembly shell, the thermal image camera is arranged at the front end of the upper assembly shell, and a plurality of sensor fixing covers are arranged on the electric cabinet. The gas sensor is detachably mounted in the sensor fixing cover, and the UWB positioning following module is mounted in the upper mounting component. The patrol robot can replace human beings to carry out patrol operation, so that the personal safety of the human beings, especially police officers is guaranteed, and the patrol robot is diversified in function, reasonable in layout and suitable for autonomous patrol in various complex environments.

The utility model discloses an injection molding device for connector shell production, which comprises a feeding block, a mounting mechanism is arranged on the feeding block, the mounting mechanism comprises a fixing sleeve, an insertion pipe, a clamping rod, a clamping mechanism, a clamping sleeve, a charging barrel, a guide mechanism, a guide rod and a sealing sleeve, the fixing sleeve is arranged on the feeding block, the insertion pipe is sleeved on the fixing sleeve, and the clamping mechanism is sleeved on the clamping sleeve. A clamping groove is formed in the inserting pipe, a clamping sleeve is installed in the fixing sleeve, the installing mechanism provides a stable and reliable mode to install and fix the charging barrel, it is ensured that the injection molding process is smoothly carried out, the installing mechanism can ensure that the charging barrel keeps the correct position and angle in the injection molding process, and therefore the quality and consistency of injection molding finished products are ensured; and the mounting process of the charging barrel is simplified, the required time and labor force are reduced, and the overall production efficiency is improved.

The utility model relates to the technical field of film pasting devices, and discloses a multifunctional screen rapid film pasting device which comprises a film pasting table, a carrier plate is arranged below the film pasting table, the lower portion of the carrier plate is connected with a bottom plate through an angle adjusting structure, and the angle adjusting structure can make one side of the carrier plate upwarp; the limiting clamping plates and the film pasting table are sleeved with a square frame, vertical plates are arranged on the four sides of the upper face of the square frame, spiral telescopic structures are arranged in the middles of the vertical plates, the limiting clamping plates are arranged on the inner sides of the spiral telescopic structures, and the extending length of the limiting clamping plates is controlled by the spiral telescopic structures. Stand columns are arranged at the four corners of the upper face of the bottom plate, a top plate is arranged on the upper end faces of the stand columns, a lifting structure is arranged in the center of the top plate, and the two suckers are arranged on the two sides of the lower face of the lifting structure respectively. And a deflation plug is arranged on the suction cup. The utility model has the advantages that the edge scraping phenomenon is avoided when the tempered glass film is pasted, the unevenness of the pasted film is avoided, and the device can be suitable for mobile phones with various sizes.

The utility model relates to air covering silk machine tensioning technical field discloses a kind of tensioning device of air covering silk machine, including tensioning device main body, the outside of tensioning device main body is provided with adjusting assembly, the back of tensioning device main body is connected with incoming line guide roll, the back of tensioning device main body lower along is connected with outgoing line guide roll, the upper along of the front of tensioning device main body is provided with broken end yarn monitoring assembly, the outer surface of tensioning device main body is provided with tensioning adjusting assembly.In the utility model, through tensioning adjusting assembly, stable support is provided using adjusting frame, wire rail ensures that the movement of adjusting slide is accurate and stable, electric telescopic link drives adjusting slide to drive tensioning roller to move, realizes the automatic accurate adjustment of yarn tension, ensures that covering is uniform and compact, improves use convenience and production quality.

The present invention discloses a control method for controlling the movement of a Mecanum wheel platform by a rocker, comprising: step 1, establishing a rocker coordinate system, step 2, moving the rocker to position A, step 3, collecting the voltages of the X-axis and the Y-axis when the rocker is located at position A, step 4, calculating the rocker combined speed and direction angle value according to the voltages of the X-axis and the Y-axis, step 5, the platform control system analyzing the speed and direction of each Mecanum wheel motor, and step 6, the platform control system calculating and analyzing the motor speed collected in real time and the motor speed and direction analyzed by the platform control system through a PID algorithm, and performing stable closed-loop control on the Mecanum wheel. The control method of the present invention realizes the control of the all-round and arbitrary speed movement of the Mecanum wheel platform.

This utility model discloses a feeding mechanism for steel processing, including a support frame with a through-type top. A feeding assembly, mounted on the support frame, includes a horizontal plate fixedly connected to the inner wall of the support frame. A horizontal adjusting frame slides on the horizontal plate, and a hydraulic rod is fixedly installed at the bottom of the adjusting frame. A connecting frame is fixedly connected to the free end of the hydraulic rod, and a clamping mechanism for picking up materials is provided inside the connecting frame. This utility model belongs to the field of steel processing technology, specifically addressing the problems of poor adaptability of clamping mechanisms, their ability to handle only specific specifications of steel, cumbersome replacement and adjustment, insufficient flexibility in displacement adjustment, unreasonable design of the drive and guide structure, and susceptibility to shaking and jamming.

The utility model provides a transferring device of a mesh bag packaging machine, which comprises a guide frame, a moving frame is arranged on the guide frame, the moving frame is provided with two parallel displacement plates, and the displacement plates are driven by a first driving mechanism; the first ends of the two displacement plates are connected with two first adsorption pieces which are driven by a second driving mechanism to get close to or away from each other; the two displacement plates are further provided with two first clamping pieces which are driven by a third driving mechanism to be close to or away from each other. The two displacement plates are further provided with two second clamping pieces which can be close to or away from each other. The first adsorption parts which are driven by the second driving mechanism to get close to or get away from each other are arranged on the displacement plate, so that composite films on the two sides of a mesh bag which is manufactured at the first station can be adsorbed and moved to the two sides to open the mesh bag, and the mesh bag is opened before the mesh bag reaches the second station; compared with an original transferring mechanism, the bag opening and transferring functions are achieved at the same time, the bag opening function does not need to be designed for the bagging mechanism, and the overall production cost of equipment is lowered.

The utility model discloses minimally invasive surgical suture needle stamping equipment, which belongs to the technical field of surgical suture needle production equipment and comprises a worktable, a support frame is arranged in the middle of the worktable, a plurality of first springs are fixedly connected to the top of an inner cavity of the support frame, and a needle storage box is fixedly connected to the top ends of the first springs. A needle pushing groove is formed in the bottom of an inner cavity of the needle storage box, a vibration motor is fixedly installed on the bottom face of the needle storage box, and a needle supporting mechanism is arranged on the workbench. According to the utility model, the support frame, the first spring, the needle storage box and the vibration motor are matched for use, and the vibration motor is used for driving the needle storage box to vibrate, so that suture needles in the needle storage box can smoothly enter the needle pushing groove, the suture needles can be smoothly pushed out for stamping, the suture needles are prevented from being blocked in the needle storage box, and the working efficiency is improved. And the practicability of the stamping equipment is improved.

The invention relates to the technical field of milling machines, and particularly discloses a high-precision rack machining milling machine which comprises a machine tool, a first frame body is arranged on one side of the top end of the machine tool, a second frame body is arranged above the first frame body, a fourth motor drives a first driving gear to rotate, and the first driving gear drives a first driven gear to rotate. A first driven gear drives a second lead screw to rotate in a first sliding groove, so that a first sliding block slides in the first sliding groove, the first sliding block drives an infrared laser lamp to move, then a second air cylinder is used for driving a mounting rod to move and finely adjust the position of the infrared laser lamp, and laser rays emitted by the infrared laser lamp irradiate the side of the machined rack; the cutting position marking function is achieved, the first motor can conveniently drive the milling cutter to cut the rack groove position, the operation precision and stability are remarkably improved, the error risk is reduced, the finished product quality of rack machining is improved, and material waste and rework cost caused by errors are reduced.

The utility model discloses a screw locking electric screwdriver driven by an industrial robot, which comprises a fixing frame, the fixing frame is connected with a mounting box, an air cylinder is mounted on one side of the top of the mounting box, a power output end of the air cylinder is connected with a locking block, the locking block is connected with a movable seat, sliding seats are mounted on two sides of the movable seat, and the sliding seats are slidably connected with linear guide rails. The movable seat is provided with a driving motor, the power output end of the driving motor is connected with a connecting plug, the connecting plug is connected with an electric screwdriver shaft, the bottom of the electric screwdriver shaft is connected with a screwdriver head rod, and a limiting assembling assembly is installed at the joint of the electric screwdriver shaft and the screwdriver head rod. The air cylinder pushes the movable base to drive the sliding bases on the two sides to stably slide along the linear guide rail, so that the electric screwdriver shaft drives the screwdriver head rod to accurately and stably move, the screwdriver head rod can be accurately clamped into a screw, meanwhile, the electric screwdriver shaft and the screwdriver head rod are connected in an inserted mode through the butt-joint block and the inserting block, and the electric screwdriver shaft and the screwdriver head rod can be accurately clamped into the screw. And a limiting assembly component is mounted on the outer side of the screwdriver head rod, so that the locking effect is improved, and vertical locking of the screwdriver head rod is ensured.

The utility model discloses an automatic demoulding punch die for automobile front floor, and relates to the technical field of automobile front floor. The automatic demoulding punch die for automobile front floor, which comprises a bottom plate, and a die mechanism and a stamping mechanism are arranged above the bottom plate, the die mechanism comprises a die part and a demoulding part, the die part comprises a die, the demoulding part comprises a top block and two groups of extrusion inclined blocks, a fixed frame is fixedly arranged on the top surface of the bottom plate, the top surface of the fixed frame is fixedly connected with the bottom surface of the die, two groups of sliding grooves are formed in the outer wall of the die, and the technical effect is that the die mechanism is cooperated with the structures such as the demoulding spring, the demoulding damper, the top block, the extrusion inclined block, the lifting frame, the control panel, the limiting column and the limiting rod, after stamping is completed, the demoulding spring and the demoulding damper drive the top block to automatically eject the formed workpiece, the top block drives the lifting frame to move, the extrusion inclined block is pushed by the control panel to extrude the side surface of the workpiece by the slope, and double efficient demoulding is realized.

The utility model discloses a sand blasting angle adjusting mechanism which is characterized in that a baffle is movably connected in a boiler flue of the sand blasting angle adjusting mechanism, the middle of the baffle slides in the boiler flue through a rod body, control rods are arranged on the two sides of the rod body, and the control rods penetrate through the boiler flue to be rotationally connected to the baffle. The control rod reciprocates to control the baffle to rotate. Through the combination of the baffle, the rod body and the control rod body which are rotationally arranged, wide-range adjustment of the sand blasting angle is achieved, the cleaning requirements of different flue sizes are met, the cleaning efficiency is improved, and cleaning dead corners are reduced. And meanwhile, the rack and the half gear are matched with the motor, so that the movement of the control rod is ensured, stable and accurate movement is realized, and the control precision of the sand blasting angle and the movement continuity are improved.

The utility model discloses a pressure fine-tuning hydraulic valve group used in coiled tubing equipment, which comprises an overflow pressure reducing valve, a single-bead shuttle valve, a pilot reversing valve and a hydraulic valve block, the overflow pressure reducing valve is arranged on the upper end face of the hydraulic valve block, and a T port, a third port, a fourth port, a P port, a first port and a second port are arranged on the side face of the hydraulic valve block. The pilot reversing valve is arranged on the side face of the hydraulic valve block, the single-bead shuttle valve is arranged on the side face of the hydraulic valve block, and the high-pressure ports in the first port and the second port are communicated to a pilot oil port below through the single-bead shuttle valve. According to the utility model, the pressure of an inlet high-pressure main oil path is adjusted to be reduced to the pressure required by an outlet, meanwhile, the full-flow overflow function from the outlet to an oil tank is realized, the characteristics of pressure / flow are very flat, the stability is good, the hysteresis is very low, and the action of hydraulic equipment is more accurate and stable.