77results about How to "Increase the clamping degree" patented technology

The invention discloses a flexible fixture applicable to workpieces with irregular shapes. The flexible fixture is characterized by comprising at least two arc-shaped baffle plates which are bent toward a clamped workpiece; each arc-shaped baffle plate is covered with a flexible air bag; each arc-shaped baffle plate is provided with an air inlet and an air outlet which communicate with the corresponding flexible air bag; each air inlet is connected with an inflation pump; each air outlet is connected with an air outlet adjusting valve; the working surface, which is in contact with the workpiece, of each flexible air bag is provided with a pressure sensing sheet; the pressure sensing sheets, the inflation pumps and the air outlet adjusting valves are separately connected with a controller through wireless signals; and the controller determines whether the clamped workpiece is tightly clamped or not according to signals transmitted by the pressure sensing sheets and controls a clamping degree by adjusting the inflation pumps and the air outlet adjusting valves. By adopting the flexible fixture, the probability that a workpiece with high brittleness is damaged can be effectively reduced; and furthermore, for a workpiece with an irregular shape, the flexible air bags can effectively cling to the outer surface of the workpiece, so that the clamping degree is improved.

The invention discloses a flexible clamp which comprises a plurality of platy baffles. Each baffle is covered with a flexible air bag. Each baffle is provided with an air inlet hole and an air outlet hole which communicate with the corresponding flexible air bag. Each air inlet hole is connected with an inflation pump. Each air outlet hole is connected with an air outlet adjusting valve. The working face, in contact with a workpiece, of each flexible air bag is provided with a pressure induction piece. The pressure induction pieces, the inflation pumps and the air outlet adjusting valves are in wireless signal connection with a controller. The controller judges whether the clamped workpiece is tightly clamped or not according to signals transmitted by the pressure induction pieces, and the clamping degree is controlled by adjusting the inflation pumps and the air outlet adjusting valves. By means of the flexible clamp, the probability that workpieces high in brittleness are damaged can be effectively lowered, in addition, the flexible air bags can be effectively attached to the outer surfaces of workpieces irregular in shape, and the clamping degree is improved.

The invention discloses a pipe fitting clamping device for an automatic machine. The pipe fitting clamping device comprises a bottom plate, a sliding rail is arranged at the bottom of the bottom plate, and supporting plates are fixedly connected to the two sides of the top of the bottom plate; and the tops of the two supporting plates are fixedly connected through a top plate, a first sliding groove is formed in the top of the bottom plate, and a fixing block is fixedly connected to the middle point of the bottom of the inner wall of the first sliding groove. According to the pipe fitting clamping device for the automatic machine, a second sliding groove, second sliding blocks, pneumatic telescopic rods, abutting blocks, annular sleeves and second air cylinders are arranged, and the problem that the clamping effect of a common pipe fitting clamping device is not good is solved, so that the stress at each part of the pipe fitting can be reasonably distributed; and when the pipe fittingis machined, shaking of the pipe fitting caused by unstable fixing due to the fact that the tensioning force in one part of the fitting is too large or too small does not occur, so that the expected machining purpose is achieved accurately, the clamping radius is conveniently adjusted according to the diameter of a pipe, and great convenience is brought to a user.

The invention discloses an upper air wiring clamp which is composed of a wiring clamp and an insulation rod. The wiring clamp comprises a wiring clamp body, a fixed metal clamp, a movable metal clamp, a wiring post, a rotary screw, a lifting nut and a hexagonal-prism screw. The fixed metal clamp and the wiring post are fixedly arranged on the upper portion of the wiring clamp body. The fixed metal clamp is in conductive flexible connection with the wiring post. The rotary screw is arranged inside the wiring clamp body and is sleeved with the lifting nut. The lifting nut is connected with the movable metal clamp and drives the movable metal clamp to move on the wiring clamp body. The lower portion of the rotary screw is connected with the hexagonal-prism screw through a universal joint. The upper air wiring clamp is of a structure that the insulation rod and the wiring clamp body can be detached. A hexagonal-prism screw groove allowing the hexagonal-prism screw to be embedded is formed in the insulation rod. The upper air wiring clamp is high in stability and clamping degree, the wiring clamp and the insulation rod can be conveniently separated, and the safety is high.

The invention discloses a rotary type feeding and discharging device capable of achieving three-axis transfer. The device comprises a machine frame, a XYZ-triaxial driving device, a clamping device and a rotating device. The fixed end of the rotating device is connected to the XYZ-triaxial driving device and driven by the XYZ-triaxial driving device to do rectilinear motion in the X-axis direction, the Y-axis direction and the Z-axis direction. The clamping device is connected to the rotating end of the rotating device and driven by the rotating device to rotate. The clamping device is composed of a plurality of clamping assemblies which are arranged at intervals through separation devices. Each clamping assembly comprises a clamping air cylinder, two clamping parts and a connection base, wherein the fixed end of the clamping air cylinder is connected to the connection base, the two clamping parts are symmetrically connected to the movement end of the clamping air cylinder, and clamping motion is completed through drive and control of the clamping air cylinder. The rotary type feeding and discharging device capable of achieving three-axis transfer can achieve multi-angle transportation and steering, and has the advantages of being high in transfer speed, good in controllability, high in clamping precision and efficiency and good in flexibility and continuity.

The invention discloses a hardware machining clamping device convenient to replace. The clamping device comprises a bottom plate, a fixing base is arranged on the top of the bottom plate, the positive face and the reverse face of the fixing base are both provided with sliding grooves, a left clamping plate and a right clamping plate are arranged on the top of the fixing base, the left clamping plate is located on the left side of the right clamping plate, a sliding base is arranged at the bottom end of the right clamping plate, and the position below the sliding base is arranged on the fixing base in a sleeving manner and is in sliding connection with the sliding grooves; the matched clamping end faces of the left clamping plate and the right clamping plate are fixedly connected with clamping anti-sliding plates through bolts, a screw rod is arranged on the left clamping plate, and threads are arranged on the screw rod; and a rotating disc is arranged at one end of the screw rod. The hardware machining clamping device convenient to replace is simple in structure and convenient to use, when a damaged part is replaced, convenience and rapidness are achieved, time for replacing is shortened, and the work efficiency of the hardware machining flow is improved.

The invention discloses a pressing battery shell mechanism, which includes a feeding mechanism, a transmission mechanism and a stamping mechanism. The feeding mechanism is provided with a base, and a horizontal sliding platform A is arranged at a middle position above the base. The horizontal sliding platform A is distributed laterally on the base, first mounts are symmetrically arranged at the front and rear positions above the transverse slide A, and slide rails are installed on the two first mounts. The invention solves the problems of low material utilization rate and material deviation during the production process of the battery case by setting the cylinder, the transverse sliding table A, the feeding table and the feeding auxiliary table; by setting the motor, the guide seat, the first The first transmission shaft, the second bevel gear, the second transmission shaft and the operation box solve the problem that the transmission and feeding structure is complicated and the processing and feeding of the battery case are not synchronized with the stamping; by setting the upper mold, the lower mold, the punch and the battery case fixture, It solves the problems of complicated steps, low continuity and low yield in the production process of the battery case.

The invention discloses a brake pad clamping mechanism for automobile brake pad drilling and relates to the technical field of automobile brake pads. The brake pad clamping mechanism comprises a worktable, wherein a first placement plate is fixedly connected to the top of the worktable, the top of the first placement plate is fixedly connected with a second placement plate through a connecting device, the top of the second placement device is fixedly connected with a guiding column, rotary rods are rotatably connected to the periphery of the inside of the worktable, vertical plates are fixedlyconnected to the bottoms of the rotary rods, and supporting columns are fixedly connected to the bottom of the worktable. The brake pad clamping mechanism for automobile brake pad drilling can utilize the cooperation of telescopic rods, the rotary rods, connecting columns, first spring and sliding columns to drive the rotary rods to rotate, can cooperate with the first springs and the sliding columns to drive a clamping device to clamp a brake pad, and the rotation range of the rotary rods is larger, so that the clamping device can clamp different sizes of brake pads, and the application range of the mechanism is greatly widened.

The invention discloses a metal cutting machine tool capable of quickly clamping. The metal cutting machine tool capable of quickly clamping structurally comprises a controller, a metal cutting machine tool body, a metal cutting device, a protective door and a cutting piece quick chuck plate, the controller is arranged outside the metal cutting machine tool body, and the controller is electricallyconnected with the metal cutting device. The metal cutting machine tool capable of quickly clamping has the beneficial effects that the cutting piece quick chuck plate is arranged to have a novel structure, transversely clamping a vertical metal piece to be cut by a main clamping mechanism is carried out through the combined arrangement of the main clamping mechanism, the chuck plate and an auxiliary clamping mechanism, the auxiliary clamping mechanism is arranged to perform longitudinally adsorption and fixation on the metal piece to be cut, not only the clamping speed is high, clamping is more stable, the to-be-cut part is not affected by cutting force and vibration force, loosening, which is generated, of the to-be-cut part is avoided, the cutting quality is improved, and the cutting defective rate is reduced.

The invention discloses a portable glass tank capping machine. The structure of the portable glass tank capping machine comprises a wooden plug clamping and shrinking device, a hydraulic cylinder, ananti-skid handle, a supporting barrel, an inner connecting rod, an outer connecting rod and a glass tank clamping device, the outer top center of the supporting barrel is perpendicularly connected tothe anti-skid handle, the inner bottom of the supporting barrel is perpendicularly connected with the hydraulic cylinder, and the hydraulic cylinder is located over the wooden plug clamping and shrinking device. Compared with prior art, the portable glass tank capping machine has the beneficial effects that the novel portable glass tank capping machine is formed by combining the wooden plug clamping and shrinking device, the hydraulic cylinder, the anti-skid handle, the supporting barrel, the inner connecting rod, the outer connecting rod and the glass tank clamping device, the size is small,carrying is convenient, a glass tank is fixed through the suction cups, the wooden plug is clamped and shrunk in the mode that the wooden plug is clamped and shrunk, so that the diameter of the woodenplug is reduced, the wooden plug is pushed downwards through the hydraulic cylinder, the wooden plug can be conveniently, rapidly and stably plugged into a glass tank opening, the capping and plugging efficiency is greatly improved, capping and plugging are stable, and damage to the glass tank capping and plugging is effectively avoided.

The invention provides a casting sand mold locking clamp which comprises a left clamp splice, a right clamp splice and a locking device arranged between the two clamp splices, wherein the locking device comprises a mounting block arranged on the side surfaces of the left clamp splice and right clamp splice, a double thread connecting rod penetrating through a through hole of the mounting block, and locking nuts arranged on both ends of the double thread connecting rod; the locking device also comprises a base for connected with the left clamp splice and right clamp splice; the left clamp splice is arranged on the left end of the base and integrated with the base; and the right clamp splice is arranged in a sliding chute on the right upper part of the base in a sliding mode. The casting sand mold locking clamp can obviously enhance the clamping degree of the mold, improve the casting quality and effectively avoid accidents caused by shedding of the mold set after casting. The upper part of the right clamp splice is provided with a liquid injection hopper capable of implementing lateral casting of the mold set. The casting sand mold locking clamp is simple in structure and easy to implement.

The invention discloses an aluminum alloy door quality detection device which structurally comprises a numerical value display box, a numerical value display screen, a pushing and clamping device, twopressurizing plates, two antiskid cleadings, a debugging nut, a handle holder and an operation button, wherein the numerical value display box is arranged above the pushing and clamping device in aninterference fit manner, the two pressurizing plates are parallel to each other and are respectively arranged at the left side and the right side of the middle of the front end of the pushing and clamping device in an interference fit manner, the numerical value display screen is of a rectangular structure and is arranged at the front end of the numerical value display box in an interference fit manner, the two antiskid cleadings are respectively arranged at the left side and the right side of the pressurizing plate in an interference fit manner, the debugging nut is embedded to the middle ofthe right side of the pushing and clamping device in an interference fit manner, and the handle holder is arranged above the debugging nut and is of an integral structure with the pushing and clampingdevice; and in use, clamping tightness for the aluminum alloy door can be improved, so that the aluminum alloy door cannot fall off easily, the detection accuracy is improved, the heat dissipation effect of the device can be improved, and the practical life of the device can be prolonged.

The invention discloses a clamping device applicable to plant layering. The clamping device comprises a port clamping device, a bag body clamping device and a force applying clamping body which are integrally arranged, wherein the port clamping device can be used for clamping the fastening end of a layering bag tightly; the bag body clamping device can be used for clamping a layering bag body tightly; and the force applying clamping body is linked with the port clamping device and a bag body clamping device. The clamping device disclosed by the invention is high in clamping degree, and can effectively ensure that the layering bag is difficult in falling under the influence of external environment, is wide in application range, and can be applicable to multiple layering modes such as air layering, common layering, horizontal layering, earth-mounding layering and wave-shaped layering, and has the advantages of simple structure, easy implementation, lower cost and long service life.

The invention provides a drilling clamp for drilling installing holes of a flange disc of a pump body of a multi-stage pump, comprising a drilling die block with drilling holes, wherein the drilling die block locks a fixed block and a locking screw on a working platform of a drilling machine; the drilling die block is ring-shaped; the diameter of the drilling die block is adaptive to the diameter of an outlet of the pump body of the multi-stage pump; a connector is arranged at the middle part of the drilling die block; a locking hole is arranged at the middle part of the connector; and the fixed block is rectangular, a through hole is arranged at the middle part of the fixed block. Since the drilling die block adaptive to the diameter of the outlet of the pump body of the multi-stage pump and the matched and rectangular fixed block are adopted, the drilling clamp provided by the invention has the advantages that the clamping degree is high, the positions of the drilled installing holes are accurate, the disassembly and assembly are convenient, the structure is simple and the implementation is easy.

The invention discloses a six-face shaping mechanism of a vacuum packaging machine. The six-face shaping mechanism comprises an outer frame with the top opened, and a shaping cavity is formed in the outer frame. A clamping unit is arranged at the opening position of the outer frame and comprises two guiding rods arranged on the two sides of the shaping cavity correspondingly, and the two guiding rods are in sliding connection with two clamping plates. Double-piston-rod air cylinders are arranged in the outer frame and below the two ends of the two clamping plates correspondingly. Two piston rods of each double-piston-rod air cylinder are connected with the end portions of the two clamping plates and drive the two clamping plates to synchronously move. Air blowing pipes are arranged on the two opposite inner side walls of the outer frame correspondingly and are obliquely arranged upwards. The six-face shaping mechanism has the beneficial effects of being compact in space, good in shaping effect and the like.

The invention discloses a drilling positioning fixture for drilling a flange disc mounting hole in a multi-stage pump body. The drilling positioning fixture comprises a drilling jig base arranged on a pedestal and a drilling jig base fixing device. An inner support block is arranged in the center of the drilling jig base, and a group of positioning drilling jig holes is formed in the peripheral position of the drilling jig base in an annular mode. The drilling jig base fixing device is a connecting plate with clamping blocks at the two ends and a through hole in the middle. A fixing screw hole is formed in the top end of each clamping block. Second fixing screw holes corresponding to the fixing screw holes are formed in the circumferential position of the drilling jig base. A middle locking bolt is arranged in a middle locking hole and the through hole in a penetrating manner, the locking bolt and a positioning groove in the pedestal are fastened, and then a workpiece is locked. Due to the adoption of the drilling jig base fixing device of a double-positioning fastening structure, the locking degree of the drilling jig base, the workpiece and the pedestal is improved, and the drilling positioning fixture has the advantages of being high in clamping degree, precise in position of the drilled mounting hole, and convenient to dismount and mount. The structure of the fixture is simple, and the fixture is easy to obtain.

The invention provides a sealing cover dismantling fixture and a nuclear industrial waste barrel treatment device, and relates to the field of nuclear waste treatment equipment. The fixture comprisesa disc, at least three locating claws, at least three dismounting and mounting mechanisms and at least three clamps, wherein the locating claws, the dismounting and mounting mechanisms and the clampsare mounted on the disc; all the locating claws are symmetrically arranged around the center of the axis of the disc and rotationally matched with the disc, and the locating claws rotate relative to the disc to synchronously change the distance between the locating claws and the axis of the disc; the dismounting and mounting mechanisms are arranged on the disc corresponding to the position of a connecting piece matched with a barrel cover, and a matching portion matched with the connecting piece is arranged at the tail end of each dismounting and mounting mechanism; and all the clamps are symmetrically arranged around the center of the axis of the disc and are hinged to the same telescopic mechanism through connecting rod mechanisms, and the telescopic mechanism stretches and contracts toenable the connecting rod mechanisms to drive the clamps to synchronously move in the radial direction of the disc. The special sealing cover dismantling fixture can be quickly located and accuratelyand reliably matched with a waste barrel, so that the effect of increasing the overall treatment speed is achieved, and the requirements of an existing machining production line are met.

The invention discloses a metal cutting machine tool capable of achieving rapid clamping. The metal cutting machine tool comprises a main body, a control screen is arranged on the right side of the top of the front face of the main body, a box door is movably connected to the left side of the top of the front face of the main body, an auxiliary clamping device is arranged in the middle of the inner wall of the left side of the main body, and the right side of the auxiliary clamping device is fixedly connected with a clamping device. The invention relates to the technical field of metal cuttingmachine tools. According to the metal cutting machine tool capable of achieving rapid clamping, workpieces which are low in hardness and uneven in surface are not prone to deformation in the cuttingprocess, the clamping force is convenient to adjust in the clamping process through a contact block and an extending block, the working efficiency is improved, the workpieces are fixed, the working quality is improved, deviation is not prone to occurring, rapid and stable clamping is facilitated, the clamping degree of the to-be-machined workpieces is further improved, the situation that the contact block is prone to slipping in the shallow concave surface is effectively avoided, the machining quality is improved, and the workpieces are clamped so that stress can be even.

The invention relates to the technical field of clamps, in particular to a self-centering floating driving device which comprises a chuck body, a tip, a clamping jaw assembly, a main piston, an auxiliary piston, a base, a tailstock and a driving device body. The self-centering floating driving device provided by the invention has a reasonable and compact structure, the driving device drives the main piston to move leftwards, one end of a to-be-machined workpiece is placed to abut against the right end of the tip, the tip achieves a centering effect on the to-be-machined workpiece, and then, the main piston moves rightwards; since each clamping jaw is hinged and connected to the outer side of the chuck body, so that the clamping jaws can float according to the specification of a workpiece to be machined in the clamping process; finally, the workpiece to be machined is clamped under the effect of a reset elastic piece, the clamping position can be automatically adjusted, over-positioning of the clamping jaws is avoided, and high-precision clamping positioning is achieved; and the connecting plate can be prevented from deviating in the process of rotating along with the chuck body through the limiting groove, the stability of the self-centering floating driving device in use is enhanced. The self-centering floating driving device has the advantages of small clamping precision deviation, multi-procedure one-time clamping capability, positioning accuracy, stability and high efficiency.

The invention discloses a pressure-tolerant wire clamp special for a carbon fiber guide wire. The pressure-tolerant wire clamp comprises an outer sleeve pipe and an inner fastener, the inner fastener comprises a compressed pipe with a groove formed in one end, a compressed pipe with grooves formed in the two ends and an end pipe with a groove, the compressed pipe with the grooves formed in the two ends is respectively in threaded connection with the compressed pipe with the groove formed in one end and the end pipe, structural pieces with frustum-shaped cavities formed inside are arranged in the grooves, and fusiform elastic clamping heads are arranged in the frustum-shaped cavities. A double-fastening mechanism is adopted, the interior and the exterior of the carbon fiber guide wire are comprehensively fastened, an inner core and an outer layer are effectively prevented from slipping, the compressed pipe structure is organically adopted, the fastening reliability of the wire clamp is further improved, the structure is simple, the operation is convenient, safety, stability and reliability are achieved.

The invention discloses a sampling device for medical examination, which comprises a sampling table with a hydraulic cylinder at the upper end. The hydraulic cylinder and the sampling table are connected through a turntable. The hydraulic cylinder is provided with a telescopic rod inside. A sampling tube box is arranged at the upper end of the telescopic rod. A meshed frame plate is arranged in the sampling tube box. Sampling tube frames are distributed on the two sides of the sampling tube box at equal spacing. A sampling tube is clamped in each sampling tube frame. A liquid bottle rack and asampling bottle rack are respectively arranged at the two ends of the surface of the sampling table. The liquid bottle rack and the sampling bottle rack are provided with bottle slots in the surfaces. A collection box is arranged at the bottom of the sampling table, and drawers are arranged in the collection box. Supporting legs are arranged on the two sides of the collection box respectively. The sampling device for medical examination is simple to operate and convenient to use, can sample and inspect liquid in liquid bottles quickly and effectively, and has high work efficiency. Moreover, the sampling bottles after sampling are convenient to place and easy to take, and are convenient to manage by the staff.

The invention relates to a prestressed anchoring device for a concrete bridge and a construction method of the prestressed anchoring device. The anchoring device comprises a rectangular frame, a fixing part, a tensioning part and carbon fiber cloth which is located between the fixing part and the tensioning part and tightly attached to a bridge construction face. Kidney-shaped through holes are formed in the two sides of the rectangular frame in the length direction of the rectangular frame, the tensioning part is located in the inner side of the rectangular frame and slidably arranged in the length direction of the rectangular frame through the kidney-shaped through holes, and the fixing part is anchored to a bridge construction face on the length extension line of the rectangular frame. According to the construction method, the fixing part is anchored firstly, then a jack is arranged between the tensioning part and the rectangular frame, the jack is used for pushing the tensioning part to tension the carbon fiber cloth, and after the carbon fiber cloth is tensioned in place, the tensioning part is fixed to the bridge installation face; and after the carbon fiber cloth is pasted, the fixing part, the rectangular frame and the tensioning part are detached. The problems that an existing carbon fiber cloth tensioning anchorage device is complex in structure and troublesome in construction, the tensile strength of the carbon fiber cloth is difficult to guarantee, and the construction efficiency is low can be effectively solved.

The invention discloses a round honeycomb ceramic automatic detecting device. The device structurally comprises a supporting frame, a detecting device, honeycomb ceramic, a conveying belt and a conveying machine body. The conveying belt is mounted on the conveying machine body, the honeycomb ceramic is mounted on the conveying belt, and the detecting device is mounted above the honeycomb ceramic.Compared with the prior art, the device has the beneficial effects that a mounting base, a ceramic clamp base and a supporting shaft are added on a traditional conveying belt, the honeycomb ceramic can be placed on the center position of a belt body at equal distances, it is ensured that the honeycomb ceramic can be conveyed to the position under the detecting device, the detecting device can detect the honeycomb ceramic, the detecting precision is improved, in the conveying process, the honeycomb ceramic can be prevented from loosening, and the detecting efficiency of the detecting device canbe improved.

The invention discloses a pressing type grounding wire joint connecting device, which comprises a wire clamp, wherein the bottom of the wire clamp is provided with a fixed contact, the fixed contact is provided with a movable contact, and the bottom of the movable contact is connected with a grounding wire; the fixed contact includes a cylindrical body fixed at the bottom of the wire clamp, the bottom of the cylindrical body is provided with an inserting port, the inserting port is internally provided with an extrusion spring, and the inner wall at the bottom of the inserting port is providedwith a plurality of uniformly distributed clamping slots; and the movable contact includes an upper inserting head, the bottom of the upper inserting head is provided with a grounding wire sleeve, andthe side wall surface of the upper inserting head is provided with clamping blocks matched with the clamping slots. The device has the characteristics that the firmness of grounding wire connection can be improved, the labor intensity of operators can be reduced, and the assembly efficiency can be improved.

The invention provides a rechargeable vehicle-mounted handset support. A fixing member is installed at the bottom of an iron base and a magnetic connecting groove is adsorbed on the upper of the iron base; the magnetic connecting groove is electrically connected with a first charging wire; a connector is adsorbed to the magnetic connecting groove; the connector is electrically connected with a second charging wire; the iron base is provided with a support column; the upper end of the support column is connected with a fixing base through a steering mechanism; the fixing base is provided with a fixing base board; the fixing base board is divided into single blocks; each single block is provided with slideway; the slideway is parallel to a first set opposite sides of the single block and is close to one side positioned inside; the inner end of the slideway is connected to one side, positioned inside, of a second set of opposite sides of the single block; an opening of the outer end of the slideway is provided in one side, positioned outside, of the second set of opposite sides of the single block; the slideway is provided with a guiding sliding bar in a slide mode; a clamping plate is fixed by the outer end of the guiding sliding bar; the inner part of the guiding sliding bar is provided with a long groove in the length direction; an elastic tensioning member is contained inside the long groove. The rechargeable vehicle-mounted handset support takes small space and has wide application range; handsets can be placed transversely and vertically; charging is convenient and the space inside a vehicle is tidy.

The invention discloses a vertical numerically-controlled milling machine. The vertical numerically-controlled milling machine structurally comprises a spindle box, a machine body, a chuck, a workbench and a base, wherein the base is fixedly connected with the machine body; the workbench is installed on the machine body; and the workbench is provided with the chuck. Compared with the prior, the vertical numerically-controlled milling machine has the following beneficial effects: the chuck is simple in structure, air is filled into an inner tube to expand the inner tube, the expansion amount islarge, and different air amounts can be injected according to to-be-machined workpieces of different sizes, so that the chuck can adapt to the to-be-machined workpieces of different specifications; the expanded inner tube can generate a pressure for a liquid storage assembly, the liquid storage assembly can provide a hydraulic pressure for a clamping group, the clamping group can clamp the to-be-machined workpieces, the clamping degree is high, and excessive clamping can be avoided, so that a protection effect is acted on the workpieces; and lubricating oil is not needed, adhesion of chippings can be avoided, frequent cleaning is not needed, and meanwhile increasing for the machining precision is contributed.

The invention discloses a self-adaptive plate equal-length machining mechanism for constructional engineering. The self-adaptive plate equal-length machining mechanism comprises limiting clamping plates, a connecting mechanism, positioning supporting plates, a transmission mechanism, a building plate, a connecting roller, a connecting swing rod, a mounting support, a positioning mechanism, supporting legs, a material guiding inclined plate, a supporting table, protective clamping plates, connecting supporting plates, a connecting motor, an adjusting mechanism, a tooth-shaped belt, a fixed belt wheel and mounting clamping seats. The four groups of supporting legs used for supporting are uniformly and fixedly mounted on the lower end face of the supporting table at equal distances. According to the self-adaptive plate equal-length processing mechanism, a connecting groove is formed in the outer portion of a connecting disc, one part of the connecting disc can be connected with a gear disc in an engaged manner, the part, located in the connecting groove, of the connecting disc can carry out static positioning on the gear disc through grabbing clamping plates, then when the connecting disc is engaged with the gear disc, the building plate can be conveyed, when the gear disc is static, the connecting mechanism can cut the building plate, and the machining efficiency and precision to the building plate are effectively improved.

The invention relates to a radiator shutter device, which comprises a frame, a blade, a guide rod, and a pull rod. The blade is provided with first blades and second blades in alternative arrangement, and all the blades are rotatably arranged on the frame through corresponding blade shafts. The guide rod is arranged at one end or two ends of each blade shaft and is provided with first guide rods and second guide rods which correspond to the first and second blades. The pull rod is provided with a first pull rod which is connected with all the first guide rods and a second pull rod which is connected with all the second guide rods, and the first pull rod and the second pull rod can drive adjacent first and second guide rods to reversely rotate during moving in the same direction. Therefore, the first blades and the second blades relatively rotate. Because the blades adopt the form of opening in opposite directions, the radiator shutter device only regulates the air quantity without changing the wind direction. The pull rod is rolled into U-shaped steel so as to improve the tensile rigidity, and the pull rod is in left and right balance during tension and pressure, and the phenomenon of locking or leaning to one side is absent. The guide rod is made of eta-shaped steel, and the clamping degree is improved.