3569 results about "Bilateral symmetry" patented technology

The invention discloses an automatic Chinese yam planting machine and a working method thereof. The automatic Chinese yam planting machine comprises a rack, a wheel assembly is arranged at the bottom of the rack, planting modules are arranged on the rack in a bilateral symmetry mode, each planting module comprises a ditching mechanism, a placing mechanism, a vibration pressing mechanism, a fertilizer spreading mechanism, a discharging mechanism and a soil covering mechanism which are sequentially arranged from front to back, and the wheel assembly is used for driving the rack to move forwards. The ditching mechanism is used for ditching grooves in the ground, the placing mechanism is used for placing shallow grooves in the grooves, the vibrating and pressing mechanism is used for vibrating and pressing the shallow grooves in the grooves, the fertilizer spreading mechanism is used for spreading fertilizer in the shallow grooves, and the discharging mechanism is used for placing Chinese yam seed tubers in the shallow grooves after fertilizer spreading. And the soil covering mechanism is used for refilling the soil after ditching into the shallow grooves. The problems that the workload is large and the efficiency is low when Chinese yams are planted in shallow grooves are effectively solved.

According to the tower foot welding and positioning device of the power transmission and transformation iron tower, a supporting steel plate and a reinforcing steel plate are both placed at the upper end of a machining table, two fixing assemblies are symmetrically arranged on the machining table, each fixing assembly comprises two bases arranged in a bilateral symmetry mode and a first sliding groove, and the supporting steel plate is placed between the two bases; a first sliding block in sliding fit with the first sliding groove is arranged at the lower end of the base, the supporting plate can drive the clamping plate to slide by pushing the supporting plate, and therefore the clamping plate can drive the reinforcing steel plate to move on the two sides of the supporting plate, the bottom end of the limiting rod can make contact with the machining table, and through friction force between the limiting rod and the machining table, the reinforcing steel plate can be clamped. And the bottom plate can be limited, so that the positions of the supporting plate and the clamping plate can be fixed, the position of the reinforcing steel plate can be finely adjusted conveniently, and the welding precision of the tower foot can be guaranteed.

According to the new energy automobile engine crankshaft near-net-shape forming process method, a placing mechanism comprises a placing box, two opening and closing doors are installed on the front side of the placing box, the two opening and closing doors are arranged in a bilateral symmetry mode, and observation windows are arranged on the opening and closing doors; through mutual cooperation of the L-shaped fixing plate, the clamping gear, the central gear, a rocking handle, a fixing plate, an annular plate, a guide plate, a sliding plate, a clamping plate, an attaching rod, a driven groove wheel, a belt, a driving groove wheel, a motor, a bottom plate and the like, when a crank needs to be dyed, the crank can be clamped and fixed, meanwhile, the crank can be driven to rotate, and the crank can be conveniently and rapidly dyed. According to the crank dyeing device, through mutual cooperation of the vertical plate, the lifting plate, the transverse plate, the vertical pipe, the connecting rod, the circular plate, the pretreatment box, the cleaning agent box, the coloring agent box and other parts, the crank can be pretreated, colored and cleaned.

The invention discloses a two-dimensional bionic multi-stage conical flow divider for laser processing and an application device thereof, and the two-dimensional bionic multi-stage conical flow divider is characterized in that the upper surface and the lower surface of the two-dimensional bionic multi-stage conical flow divider are provided with micro-groove structures, and the micro-groove structures are longitudinal parallel grooves distributed in a linear array; the two-dimensional bionic multistage cone flow divider is of a bilateral symmetry structure and specifically comprises a single primary main cone and a plurality of secondary small cones on the single side, the secondary small cones are distributed on the two sides of the primary main cone at equal intervals, and the included angle between each secondary small cone and the primary main cone ranges from 9 degrees to 21 degrees. The cone angle of the first-stage main cone structure is 9-21 degrees, the length of the first-stage main cone structure is 8-12 mm, the cone angle of the second-stage small cone structure is 9-21 degrees, the length of the second-stage small cone structure is 1-3 mm, the depth of the micro-groove structure is 35-45 micrometers, and the center-to-center distance of the micro-groove structure is 28-35 micrometers. According to the two-dimensional bionic multistage conical flow divider for laser processing and the application device thereof, the problem that the efficiency of spontaneous continuous separation of existing multiphase immiscible organic liquid drops is low is solved.

The invention relates to the technical field of transformer coils, and discloses a transformer coil adopting a rotary positioning pin array structure, which comprises an interlayer insulating cylinder, a left coil winding body and a right coil winding body wound on the outer wall of the interlayer insulating cylinder, and a plurality of partition bent plates mounted in the middle of the outer wall of the interlayer insulating cylinder, adjusting plates slidably sleeve the outer wall of the interlayer insulating cylinder in a bilateral symmetry manner. The transformer coil adopting the rotary positioning pin array structure can effectively solve the problems that in the prior art, a sectional type transformer coil mostly depends on a single or few limiting parts, so that movement of coil sections in the axis direction or uneven interlayer gaps due to alignment deviation during assembly or thermal expansion and cold contraction during operation is difficult to deal with; the radial direction is difficult to resist the rigidity difference of materials or radial deviation caused by long-term operation vibration, so that dislocation between coil layers and local extrusion damage of an insulating layer are caused, and the insulating property and the short-circuit resistance of the transformer are further influenced.

The invention discloses a warehousing system based on four-way shuttle vehicles and hoisters, which comprises a plurality of layers of goods shelves, a plurality of lifting devices and a plurality of lifting devices, the four-way shuttle vehicle comprises a vehicle body and a tray installed on the vehicle body in a lifting mode. The lifting frame is arranged on the front side of the goods shelf and located at the front end of the channel. The lifting machine is installed on the lifting frame in a lifting mode, the lifting machine is provided with two cargo bearing rails distributed in a bilateral symmetry mode and a trolley rail distributed between the two cargo bearing rails, and the horizontal height of the cargo bearing rails is larger than that of the trolley rail; after goods loaded by the four-way shuttle vehicle enter the trolley track through the channel, the tray places the loaded goods on the goods bearing track, and then the four-way shuttle vehicle drives out of the trolley track. After the four-way shuttle vehicle takes the goods from the goods shelf, the goods can be directly placed on the elevator, then the next task can be executed, the four-way shuttle vehicle does not need to move to the designated layer of the goods shelf together with the taken goods along with the elevator, and the warehouse management efficiency can be improved.

The continuous type goods shelf supporting strip welding equipment comprises a rack, first linear modules are fixedly mounted on the left side and the right side of the rack correspondingly, a supporting plate is fixedly mounted at the output ends of the first linear modules, and a goods frame is fixedly mounted on the upper side of the supporting plate through a support; a plurality of first open grooves are formed in the goods frame, a continuous feeding device is installed on the left side of the rack, an alignment feeding device is installed on the middle side of the rack, continuous welding devices are installed on the left side and the right side of the rack in a bilateral symmetry mode along the center axis of the rack, and the continuous welding devices are located on the rear side of the alignment feeding device. The continuous welding device comprises a welding assembly and a pressing assembly, the welding assembly is installed on the upper side of the rack, and the pressing assembly is installed on the welding assembly. By means of the mode, continuous feeding can be carried out on the supporting strips of the goods shelf, continuous welding of the supporting strips of the goods shelf and the goods frame can be carried out, and the welding efficiency is high.

The utility model relates to the technical field of metal product drilling processing, in particular to a metal product punching device convenient to clean, which can effectively prevent metal scraps from splashing, prevent workers from being damaged and facilitate cleaning of the splashing scraps. Comprising a machining table, four supporting legs are fixedly arranged at the bottom end of the machining table, a support is fixedly installed at the top end of the machining table, two supporting plates are symmetrically and fixedly connected to the top of the support, guide rods are fixedly connected to the two supporting plates, a guide sliding groove is formed in the top end of the support, and a sliding plate is slidably arranged on the support through cooperation of the guide sliding groove; two sets of clamping cylinders are fixedly installed on the support in a bilateral symmetry mode, the output ends of the two sets of clamping cylinders are fixedly connected with clamping plates, the collecting box communicates with an air draft hose, the bottom of the connecting plate is fixedly connected with an elastic conical barrel, the input end of the air draft hose communicates with the interior of the elastic conical barrel, and the drill bit sleeve is sleeved with the elastic conical barrel. The bottom of the elastic cone is lower than that of the drill bit.

The invention discloses a vortex spinning rubber roller sleeving and withdrawing all-in-one machine and a machining method thereof, and belongs to the technical field of rubber roller machining, the vortex spinning rubber roller sleeving and withdrawing all-in-one machine comprises a cabinet body and further comprises a rubber roller feeding device, a shaft sleeve feeding device, a pressing device, a positioning device and a transferring device, the rubber roller feeding device is installed on the left side of the cabinet body, and the shaft sleeve feeding device is installed on the right side of the cabinet body; the pressing device is installed on the middle side of the cabinet body, the two positioning devices are installed on the upper side of the cabinet body in a bilateral symmetry mode along the center axis of the pressing device, and the two transferring devices are installed on the upper side of the cabinet body in a bilateral symmetry mode along the center axis of the pressing device. The pressing device comprises a first support, a first air cylinder, a sliding support, a second support, a supporting rod and a fixing plate. In this way, rubber rollers and shaft sleeves can be fed one by one in a preset posture, pre-feeding and pressing assembling can be conducted on the rubber rollers only through one pressing device, and continuous assembling and discharging can be conducted on the rubber rollers and the shaft sleeves.

The invention discloses an automatic processing device for diesel generator processing and a processing method, an intermittent rotating seat is rotatably mounted above a base, a composition jig is placed above the intermittent rotating seat, the composition jig is located between an inner supporting plate and an outer pressing plate, a plurality of stator cores are placed above the composition jig in an overlapping manner, and the stator cores are located between the inner supporting plate and the outer pressing plate. The inner side and the outer side of the stator core abut against the inner supporting plate and the outer pressing plate correspondingly, a lifting base is rotationally installed at the bottom end of a push rod of the hydraulic cylinder, a pressure maintaining plate is arranged below the lifting base, and two welding mechanisms are arranged on the upper portion of the base in a bilateral symmetry mode. The intermittent rotating seat is provided with the pressure maintaining mechanism, the stator iron core is stacked between the inner supporting plate and the outer pressing plate in the pressure maintaining mechanism, the stator iron core can be supported and positioned, the welding precision is improved, the inner supporting plate and the outer pressing plate can be far away from each other, the built-in space is large, and the stator iron core can be conveniently placed and taken out.

The invention relates to the technical field of electronic instrument panel assembling equipment, and discloses combined electronic instrument panel assembling equipment which comprises a base, the bottom end of the base is fixedly connected with two sets of anti-skid feet in bilateral symmetry, the top end of the base is fixedly connected with a set of supporting plates in bilateral symmetry, and guide rods are fixedly connected into the top ends of the supporting plates; and the opposite sides of the guide rods are movably connected with movable plates, the outer walls of the movable plates are movably connected with guide rails, the top ends of the guide rails are fixedly connected with electric push rods, and the bottom ends of the electric push rods are fixedly connected with assemblers. And then a gear ring drives a lifting rod on a rotating rod to move upwards through a gear, so that the height of a top plate and the height of an auxiliary mechanism at the top end are adjusted, the auxiliary mechanism can be tightly attached to the bottom end of the instrument panel, and the situation that when the instrument panel is assembled, the force is too large, and consequently the instrument panel deforms is prevented.

The invention relates to the technical field of machining, in particular to a parallel double-spindle double-station intelligent turning center which comprises a bottom plate, vertical plates extending upwards are fixedly connected to the left side and the right side of the bottom plate, first supporting seats are fixedly connected to the upper side of the bottom plate in a bilateral symmetry mode, and second supporting seats extending upwards are fixedly connected to the rear portion of the upper side of the bottom plate. The machining mechanism and the feeding and discharging mechanism are used in cooperation, the machining efficiency of workpieces can be effectively improved in a double-spindle and double-station synchronous machining mode, meanwhile, by means of an oblique feeding mode, the machining efficiency of the workpieces can be effectively improved, and the machining efficiency of the workpieces can be effectively improved. According to the tool turret assembly, the machining influence of cooling liquid and chippings on workpieces is effectively reduced, the follow-up cleaning time is saved, the tool can be rapidly assembled and disassembled, the assembling and disassembling efficiency of the tool turret assembly is effectively improved, installation is stable, and time and labor are saved in use.

The invention discloses a carrying table for special-shaped optical glass processing, and relates to the technical field of optical glass processing.The carrying table comprises a workbench and semicircular glass, the semicircular glass is placed on the workbench, a fixing plate is fixed to the workbench, and second air cylinders are fixed to the lower end face of the fixing plate in a bilateral symmetry mode; a bottom plate is fixed to the output end of the second air cylinder, a positioning mechanism is installed on the bottom plate, supporting mechanisms are arranged on the side edge of the positioning mechanism in a front-back symmetry mode, each supporting mechanism comprises a transverse plate fixed to the workbench, a rotating block is connected to the transverse plate through a bearing, and the rotating angle of the rotating block ranges from 0 degree to 45 degrees. According to the platform deck for processing the special-shaped optical glass, the adjustable rotary supporting mechanism is adopted, so that the platform deck can adapt to positioning and supporting of semicircular glass with different diameters, the adaptability of the platform deck is effectively guaranteed, the supporting effect on different positions of one side of a concave surface of the semicircular glass can be achieved, and the stability of the semicircular glass is guaranteed.

The utility model provides a compacting device for processing a composite wood board. The compacting device comprises a base, a workbench is fixed on the base, openings which are in bilateral symmetry are formed in the top face of the workbench, a liftable pressing plate is arranged above one opening, and a first hydraulic rod used for driving the pressing plate is arranged above the workbench; a connecting plate is fixed to the top of the workbench, a first motor is fixed to the connecting plate, a first lead screw is fixed to a rotating shaft of the first motor, and the first lead screw is in threaded connection with a moving plate connected with the fixed end of the first hydraulic rod; two sealing plates capable of ascending and descending are arranged on the bottom face of the workbench and used for sealing the bottoms of the two openings correspondingly, and a second hydraulic rod used for driving the sealing plates is arranged on the base. According to the utility model, raw materials are alternately fed through the two openings for use, so that the machine does not need to be stopped for a long time during material taking after the compaction operation of the composite wood board, the material taking process of the composite wood board is simple and rapid, and the processing efficiency of the composite wood board is improved.

The invention relates to the technical field of electric bicycle detection, in particular to an electric bicycle frame strength detection device and method.The electric bicycle frame strength detection device comprises a base, the upper end of the base is provided with two vibration units symmetrically arranged front and back, and the upper end of the base is further provided with a testing unit used for clamping a frame and vibrating the frame up and down in cooperation with the vibration units; the positions, corresponding to the vibration units, of the base are each provided with two adjusting units which are arranged in a bilateral symmetry mode. According to the invention, the two hinged vibration plates and the test unit cooperate to carry out vibration test on the strength of the frame, and the vibration plates and the test unit cooperate to drive the vertical vibration amplitude of the frame to be adjusted according to the included angle between the two hinged vibration plates. Therefore, the frame strength of the electric vehicle when the electric vehicle runs on the road surfaces with different road conditions can be tested, the frame testing efficiency is improved, meanwhile, the frame strength of the electric vehicle when the electric vehicle runs on the continuously changing road surfaces can be tested, and the frame strength testing accuracy is improved.

The utility model relates to the technical field of agricultural machinery, and discloses a medicinal plant seedling planting device. The medicinal plant seedling planting device comprises a seedling placing pipe, the outer side of the seedling placing pipe is fixedly connected with handles which are distributed in a bilateral symmetry mode, and the outer side of the seedling placing pipe is provided with opening driving assemblies which are distributed in a bilateral symmetry mode and matched with the corresponding handles. The problems that when the device is used, the device is inserted into soil, the seedling planting mechanism opens the soil, then the plant seedlings are put into the seedling feeding mechanism, the plant seedlings fall into the opened soil through the seedling feeding mechanism, however, soil blocks at the roots of the plant seedlings are broken, and the root hairs of the plant seedlings are damaged are solved. The problems that the root system part of the plant seedling is wrapped with a soil block, the plant seedling falls into soil through the seedling feeding mechanism, the soil block wrapping the root system of the plant seedling is broken, then the root hair of the plant seedling is pulled apart, and the later growth of the plant is affected are solved.

The invention relates to the technical field of axial magnetic flux motors, in particular to a vehicle chassis axial magnetic flux motor which comprises an outer side shell, guide butt joint mechanisms are fixedly connected to the upper side face and the lower side face of the outer side shell in a bilateral symmetry mode, end shells are symmetrically installed on the upper side and the lower side of the outer side shell, and cooling fins are fixedly connected to the outer faces of the end shells. A rotor shaft is inserted between the upper end shell and the lower end shell in a penetrating mode, bearings are fixedly connected to the rotor shaft in a vertically symmetrical and sleeved mode, a circular plate is fixedly connected to the position, between the two bearings, of the rotor shaft in a sleeved mode, and rotor back iron is connected to the position, on the circular plate, of the rotor shaft in a sleeved mode. The axial magnetic flux motor has the beneficial effects that when the coil winding sleeve and the stator iron core in the axial magnetic flux motor need to be assembled, the stator iron core is firstly clamped into the end part shell, and the plurality of positioning blocks are respectively inserted into the plurality of positioning grooves through the matching of the plurality of locking mechanisms, so that the stator iron core is fixedly connected with the end part shell.

The invention discloses a material tensile strength testing device suitable for a high-humidity and high-salt environment, the material tensile strength testing device comprises a box body, two connecting plates are fixedly connected to the rear side, close to the top, of an inner cavity of the box body, the two connecting plates are arranged in a bilateral symmetry mode, and two concentric-square-shaped frames are jointly and fixedly connected between the two connecting plates; through mutual cooperation of a driving gear, a concave mounting plate, an A-shaped mounting plate, a driving motor, a cleaning gear, an inner gear ring and the like, the outer surface of a reinforcing steel bar can be pretreated, and the situation that a test result is affected by corrosion of the surface of the reinforcing steel bar is prevented; through mutual cooperation of a component moving motor, a connecting plate, a double-thread lead screw, a moving block, a salt spray test box, a linkage rod, absorption cotton and other components, when a steel bar is tested in a continuous salt spray environment, salt spray liquid drops are attached to the outer surface of the steel bar, so that the surface of a sample is condensed; a local electrolyte membrane can be prevented from being formed on the surface of the steel bar to accelerate pitting corrosion or galvanic corrosion.

The invention relates to the technical field of non-woven fabric tensile strength testing, in particular to an automotive trim non-woven fabric tensile strength testing device which comprises a testing area plate, vertical plates are fixed to the top of the testing area plate in a bilateral symmetry mode, and a through rail is fixed to the tops of the two vertical plates jointly. Positioning parts are arranged in the middle of the through track in a bilateral symmetry mode through limiting sliding blocks, a power part is arranged on the two vertical plates together, a soaking part is arranged on the rear side face of the through track, and an auxiliary assembly used for being matched with the power part is fixed to the position, located on the front side of the through track, of the top of the testing area plate. According to the automobile interior non-woven fabric testing device, the automobile interior non-woven fabric is soaked by adopting the soaking part, so that the testing result is more diversified and closer to the reality under the condition that the non-woven fabric is affected with damp, and meanwhile, the testing accuracy is improved by sampling the same automobile interior non-woven fabric for multiple times and performing contrast testing. The tensile strength of the to-be-tested automotive trim non-woven fabric can be comprehensively evaluated according to the tensile strength change of the to-be-tested automotive trim non-woven fabric in different environments.

The invention relates to the technical field of automobile bumper beam assembly manufacturing, in particular to automobile bumper beam assembly automatic welding equipment and a welding method.The automobile bumper beam assembly automatic welding equipment comprises a base, a clamp base is fixedly installed on the upper end face of the base, and welding mechanical arms which are located in front of the clamp base and are in bilateral symmetry are fixedly installed on the upper end face of the base; and a bearing mechanism is arranged on the clamp seat. A comprehensive operation model of bearing, limiting and aligning is adopted for completing rapid welding after integrated clamping and fixing of the automobile bumper beam and the energy absorption box, firstly, the position of the beam is accurately corrected through cooperation of abutting limiting and internal expansion on the upper end face and the lower end face of the beam, and it is guaranteed that the beam and the energy absorption box are accurately aligned; and meanwhile, the overall stability is enhanced through supporting of a trapezoidal structure, vibration and deformation in the welding process are reduced, and deformation caused by thermal stress is avoided, so that uniformity and consistency of welding seams are achieved through mutual cooperation of mechanisms, the overall welding quality and strength are remarkably improved, and the production efficiency of the automobile bumper beam assembly is improved.

The utility model provides a photovoltaic support direction adjusting device, which relates to the technical field of photovoltaic supports, and comprises two support frames which are distributed in a bilateral symmetry manner, and a mounting rod is arranged between the tops of the two support frames; a rotating shaft rod is rotatably installed between the positions, close to the tops, of the two supporting frames through a bearing, meshing transmission of a driving gear and a driven gear is utilized, a photovoltaic panel can swing front and back with a rotating column as the axis, the left and right sides are compressed through springback of a first compression spring, a ratchet claw is clamped in a ratchet groove, and the self-locking process of the rotating shaft rod is achieved. The photovoltaic support direction adjusting device is simple in structure and flexible and convenient to use and operate, a good lighting effect can be achieved by adjusting the supporting angle of a photovoltaic panel, and the problems that when an existing photovoltaic support direction adjusting device is used, a photovoltaic support usually uses a bolt pressing connection fixing technology, and in the angle adjusting process of the photovoltaic panel, the angle of the photovoltaic panel cannot be adjusted easily are solved. Tools are needed for assembly and disassembly, and the operation process is troublesome.

The invention discloses a special lifting appliance for overturning and closing a sand box for casting, and particularly relates to the technical field of lifting appliances for casting, the special lifting appliance comprises two supporting frames, inner cavities of two first sliding grooves are jointly connected with a hanging mechanism in a sliding mode, and the middle of the front side of the hanging mechanism is fixedly connected with a control box component; and fixing mechanisms are arranged on the left portion and the right portion of the lower side of the hanging mechanism correspondingly, and the sides, close to each other, of the two fixing mechanisms are jointly provided with a casting box component. According to the special lifting appliance for overturning and closing the sand box for casting, the hanging mechanism is controlled through the control box component, so that the rotating groups in bilateral symmetry in the hanging mechanism are far away from each other or close to each other, the lifting appliance can be suitable for different types of sand boxes under the cooperative use of the two fixing mechanisms, and the sand box can be overturned and closed under the action of a hook and an external crane. And under the cooperative use of the positioning part and the second through hole, accurate alignment can be achieved in the box closing operation process, and the application range of the device is wider.

The invention relates to the field of steel cutting equipment, in particular to die steel fixed-length cutting equipment which comprises a base, supporting pieces are fixedly installed on the front side of the base in a bilateral symmetry mode, a cutting saw is arranged on the upper side of the front portion of the supporting piece on the left side in a left-right sliding mode through an electric sliding block, and a pushing mechanism for pushing die steel materials in a fixed-length mode is arranged in the middle of the base. The positioning mechanism is in contact with the die steel material in a rolling contact mode, rolling contact points are evenly distributed in the upper direction, the lower direction, the left direction and the right direction of the die steel material, and therefore sliding friction between the positioning mechanism and the die steel material is prevented; and the cutting effect and the cutting precision of the die steel materials are guaranteed, the pushing plate is controlled to be not in contact with the die steel materials during reset movement through the control assembly, and the cutting effect and the cutting precision are further guaranteed.

The invention relates to the technical field of cleaning robots, in particular to a multifunctional oil tank cleaning robot which comprises a shell and universal wheels, the universal wheels are movably connected to the position, close to the front side, of the bottom face of the shell, and two driving assemblies are arranged on the top face of the shell in a bilateral symmetry mode. According to the cleaning robot, the driving assembly, the universal wheels, the impurity collecting assembly and the cleaning assembly are arranged, when the oil tank is cleaned, the direction and speed of the driving wheel are controlled through the first motor, and the arranged universal wheels are combined, so that automatic operation of the cleaning robot in the oil tank can be achieved; then an annular gear is driven through a second motor, the annular gear is meshed with a first gear to drive a cleaning brush to rotate, cleaning operation on the interior of the oil tank is achieved, impurities are sucked into a connecting pipe under the action of negative pressure equipment, the impurities enter an inner cavity of a collecting shell, and collecting operation on the impurities in the oil tank is completed; the cleaning effect is good.

The utility model belongs to the technical field of power equipment, and particularly relates to a wire clamp fixing device which comprises an upper clamp and a lower clamp, the upper clamp is located above the lower clamp, bolts are arranged on the upper side and the lower side of the upper clamp and the lower clamp in a penetrating mode, and first cambered surface grooves are formed in the lower side of the upper clamp in a bilateral symmetry mode. Second cambered surface grooves are formed in the upper side of the lower clamp in a bilateral symmetry mode, a clamping groove is formed in the upper side of the lower clamp, an arc-shaped gasket is movably arranged on the lower side of the lower clamp, adjusting nuts are connected to the upper side of the upper clamp in a bilateral symmetry mode, and an adjusting screw rod is arranged on the upper side of the upper clamp in a penetrating mode; the adjusting screw rods are symmetrically arranged left and right, the adjusting nuts are in threaded connection with the adjusting screw rods, and arc-shaped pressing plates are rotatably arranged at the lower ends of the adjusting screw rods, so that the problems that when an existing device is used, fixation cannot be carried out according to cables with different diameters, and inconvenience is caused are solved; when an existing device is used for fixing a cable, the skin of the cable is prone to abrasion, and danger is caused.

The invention discloses a spinning method for wrapping blended yarns, which comprises the following steps of: adopting a front row of drafting roller pairs, a middle row of drafting roller pairs and a rear row of drafting roller pairs which are independently driven, sleeving left and right rotating shaft sleeve groups which are axially symmetrically arranged on a roller shaft of a lower roller, and sleeving left and right rubber roller sleeve groups which are axially symmetrically arranged on a rubber roller shaft of an upper rubber roller; three pairs of pressing, holding and feeding jaws for short fiber roving are respectively formed on the roller shaft and the first rotating shaft sleeve and the second rotating shaft sleeve in the left and right rotating shaft sleeve groups in a bilateral symmetry manner; a first pair of short fiber strands which are pressed, drafted and output on a roller shaft, a second pair of short fiber strands which are pressed, drafted and output on a second rotating shaft sleeve and a third pair of short fiber strands which are pressed, drafted and output on a first rotating shaft sleeve are output in a lower, middle and upper space overlapping state, and production of needed wrapped blended yarn is achieved. Then direct blending in the spinning process is achieved, different fiber components in blended yarn are arranged in a layered mode, the blending efficiency is improved, and different blending purposes are achieved.

The invention relates to the technical field of pipe fitting welding, and particularly discloses a metal pipe fitting welding device which comprises a machine body for containing pipe fittings and a portal frame fixedly installed at the top of the machine body, an air cylinder is fixedly installed at the top of the portal frame, a sliding table mechanism is arranged at the top of the machine body, a welding gun is arranged on the sliding table mechanism, and a driving mechanism is arranged on the machine body. Two extrusion inner supporting mechanisms in bilateral symmetry are arranged on the driving mechanism, longitudinal pressing force is applied to the transverse pipe and the two vertical pipes through pressing plates, the transverse pipe and the two vertical pipes are further longitudinally limited, and the problem that the welding quality is affected due to the fact that the transverse pipe and the two vertical pipes are not tightly attached is solved; and meanwhile, the two deviation preventing plates enter the pipe fitting to be in clearance fit with the vertical pipes and the transverse pipe, so that the transverse pipe and the two vertical pipes are further horizontally limited through ingenious utilization of the tiny clearance, the welding stability is further improved, and deviation of the transverse pipe and the two vertical pipes in the horizontal direction in the welding process is avoided.

The invention discloses a color stone metal tile surface wear resistance detection device, and relates to the technical field of color stone metal tile detection, the color stone metal tile surface wear resistance detection device comprises a supporting mechanism and a detection mechanism, the supporting mechanism comprises a lower supporting plate and an upper supporting plate, and the top wall of the lower supporting plate is connected with the upper supporting plate through two stand columns fixed in a bilateral symmetry mode; a detection mechanism is arranged on the lower supporting plate, and a flow adjusting mechanism, a shakeout mechanism, a supporting frame and a recycling mechanism are arranged on the upper supporting plate. The device has the advantages that sand grains are adjusted to fall quantitatively, and the impact frequencies of different quantities of sand grains on a sample in unit area are different, so that the diversity of detection results is improved; the wear conditions of different positions of the same color stone metal tile sample to be detected under different inclination conditions and different height conditions are simulated, so that the diversity and authenticity of detection results are improved; when repeated experiments are carried out, the recovery mechanism is matched with the flow adjusting mechanism, so that the consistency and repeatability of test results are ensured.

The high-speed AC cradle double-turntable driven by the torque motor comprises two A-axis turntables, two C-axis turntables and a bridge plate, the two A-axis turntables are installed on the left side and the right side of the bridge plate in a bilateral symmetry mode, and the two C-axis turntables are installed in the middle of the bridge plate in a bilateral symmetry mode; each group of A-axis rotary table comprises an A-axis working table, an A-axis torque motor stator, an A-axis torque motor rotor, a motor water-cooled jacket, an A-axis brake mechanism and an A-axis encoder assembly, and each group of C-axis rotary table comprises a C-axis working table, a C-axis torque motor stator, a C-axis torque motor rotor, a C-axis brake mechanism and a C-axis encoder assembly. The two groups of A-axis rotary tables and the two groups of C-axis rotary tables of the double rotary tables are driven by torque motors, and the A-axis encoder assemblies and the C-axis encoder assemblies are arranged for full-closed-loop control, so that high-precision and high-dynamic response is realized, and the double rotary tables are particularly suitable for manufacturing automobile parts on a large scale; and the aluminum alloy parts can be applied to machining of complex multi-angle aluminum alloy parts such as motor shells, speed reducer shells and shock absorption towers.

The utility model belongs to the technical field of cable detection devices, and particularly relates to a cable bending resistance detection device which comprises a detection table, an installation groove is formed in the upper side of the detection table, a motor is fixedly connected to the left side wall of the inner side of the installation groove, and the output end of the motor is fixedly connected with a bidirectional lead screw. The end, away from the motor, of the bidirectional lead screw is rotationally connected with the right side wall of the inner side of the mounting groove, adjusting plates are arranged on the upper side of the detection table in a bilateral symmetry mode and movably connected to the outer side of the bidirectional lead screw in a sleeving mode, side plates are connected to the upper side of the detection table in a bilateral symmetry mode, and the adjusting plates are located on the opposite sides of the two side plates. The problems that according to an existing device, workers observe and manually record the breaking time in the whole process, manpower is consumed, and the working efficiency of the workers is affected are solved; the problems that an existing device cannot well cope with cables of different sizes and lengths, clamping is not stable enough, and the cables are loosened and even fall off are solved.