2475 results about "Lever pressing" patented technology

The invention discloses a rigid rod frequency ratio method axial force identification method. The method comprises the following steps: (1) according to engineering data, obtaining whether a rigid rod is a pressure rod or a pull rod, and obtaining related parameters of the rigid rod: the linear density m of the rigid rod, the length L of the rigid rod and the flexural rigidity EI of the rigid rod; (2) vibration signals of the rigid rod are collected on site through a vibration sensor, and multi-order frequency of the rigid rod is obtained through analysis; (3) selecting a corresponding method to calculate the frequency ratio of the rigid rod according to whether the rigid rod is a compression rod or a pull rod and boundary conditions, and calculating the axial force of the rigid rod through a frequency ratio method; and (4) checking the relative flexural rigidity xi of the rigid rod, and evaluating the axial force identification precision of the rigid rod. According to the method, a unified calculation method for identifying the axial force of the rigid pull rod and the pressing rod is established through a frequency ratio method, the method is easy to use and has good precision, and a practical new method is provided for identifying the axial force of the rigid rod.

The invention provides a sole pressing machine for shoemaking and a shoe sole pressing method. The sole pressing machine comprises a rack, a left and right edge pressing device, a front and back tightening device, a pressing rod device and a jacking mechanism, and a working platform is arranged on the lower portion of the rack; the jacking mechanism is arranged on the working platform, and the left and right edge pressing device is arranged above the jacking mechanism and connected with the movable end of the jacking mechanism. The front-back tightening device and the pressing rod device are both arranged above the left-right edge pressing device, and the upper end of the front-back tightening device and the upper end of the pressing rod device are both connected with the rack. The automatic shoe taking and placing device has the advantages that in the open state, the front end and the rear end of the left-right edge pressing device are not blocked by the front lacing mechanism and the rear lacing mechanism, meanwhile, the enough distance can be kept between the left-right edge pressing device and the front-rear lacing device, automatic taking and placing operation on shoes can be conveniently achieved by means of a mechanical arm and the like, manual shoe taking and placing are not needed, and the labor intensity of workers is reduced. And full-automatic production of sole pressing operation can be realized, so that the production efficiency is improved.

The invention discloses a pipeline external aligning device capable of carrying a welding device and a using method of the pipeline external aligning device. The pipeline external aligning device comprises a frame body capable of being opened and closed, a first fixing disc, a second fixing disc and a guide rail, wherein the first fixing disc and the second fixing disc are arranged in the frame body, and the guide rail is arranged on the end face of the second fixing disc. A plurality of pressing rod assemblies are slidably arranged on the circumferences of the inner walls of the first fixing disc and the second fixing disc, and a plurality of pressing disc assemblies are arranged on the side walls. The pressure plate assembly comprises a pressure plate, a plurality of wedge blocks arranged on the pressure plate, and a pressure plate oil cylinder arranged on the pressure plate; the wedge block abuts against the pressing rod assembly, the pressing rod assembly can be connected with a pipeline to be aligned in a sleeved mode, the pressing disc oil cylinder stretches out and draws back, the wedge block is driven to move in the axial direction of the pipeline outer aligning device, the pressing rod assembly is driven to move in the radial direction of the pipeline outer aligning device, and misalignment adjustment is conducted on the pipeline to be aligned. And the guide rail is used for carrying a welding device so as to weld the pipeline subjected to misalignment adjustment, and accurate opening alignment and efficient automatic welding of the pipeline can be achieved.

The invention discloses a medium presser foot mechanism control method and a medium presser foot mechanism, and the method comprises the following steps: a control unit controls the rotation of a main shaft motor, a medium presser foot motor and a feeding motor according to a target pattern parameter, and obtains a target sewing stitch; the control unit obtains a given material pressing angle range from the expected material pressing angle range according to the cloth thickness and the sewing speed; the control unit obtains a given middle presser foot stroke from the expected middle presser foot stroke according to the cloth thickness and the middle presser foot height; according to the middle presser foot mechanism, a motor drives a crank, fisheye connectors A and B, a connecting rod, a pressing rod guide frame and other assemblies, and follow-up vertical movement of a middle presser foot is achieved. A motor is fixed through a support, an output shaft is connected with a driving crank, and the driving crank drives a fisheye connector A to be connected with a connecting rod and transmits motion to a pressing rod and a middle pressing foot. The pressing rod guide frame plays a guiding role and limits rotation of the pressing rod. The induction plate is arranged on the driving crank, when the middle presser foot is lifted to the highest point, the sensor can sense the induction plate, and position feedback is achieved.

The invention provides a quick-inserting lock device which comprises a mounting bracket, a locking mechanism, a locking mechanism, a locking mechanism, a locking mechanism, a locking mechanism, a locking mechanism and a locking mechanism, the mounting bracket is arranged on to-be-locked equipment, and a containing groove is formed in the mounting bracket; the two sliding blocks are correspondingly arranged at the two ends of the containing groove respectively, and first elastic pieces are arranged between the sliding blocks and the inner wall of the containing groove; the pressing rod, the pressing rod and the sliding block are all arranged in the containing groove through a first rotating shaft, a second elastic piece is arranged in the middle of the containing groove and located between the pressing rod and the installation support, a hook-shaped structure is arranged at one end of the pressing rod, a locking structure is arranged at the other end of the pressing rod, and the locking structure and a check block arranged on the rack or the base are locked in a pressed mode. The lock hook is rotationally arranged in the containing groove, a third elastic piece is arranged in the containing groove, and the lock hook and a hook-shaped structure arranged on the pressing rod are buckled and self-locked. According to the invention, rapid plugging locking and unlocking can be realized, the reliability is high, and the comfort level of an operator is enhanced.

The utility model discloses a pipe production cutting device which comprises an operation table and a base, the outer side of the operation table is fixedly connected with an L-shaped plate, a threaded pressing rod is arranged in the L-shaped plate, one side of the threaded pressing rod is connected with a rotating disc, the other side of the rotating disc is provided with a clamping plate, the top of the L-shaped plate is fixedly connected with a spring, and the spring is fixedly connected with the base. A top plate is arranged at the top of the spring and connected through a transverse plate. According to the cutting device for pipe production, a threaded pressing rod, a clamping plate, a spring, a transverse plate and other structures are installed at the top of the operation table, so that the clamping effect is better during use, the threaded pressing rod is reversely screwed firstly, then a pipeline is placed at the top of the operation table, and then the threaded pressing rod is screwed to drive the clamping plate to clamp the pipeline from the two sides; the clamping plate is arranged on the top of the pipeline, the transverse plate is pressed on the top of the pipeline, when the pipeline needs to be cut, the clamping plate and the transverse plate can achieve the dual clamping effect on the pipeline, and therefore the clamping effect is stable during cutting.

The utility model relates to a gas pipeline connecting device which comprises a left pipeline and a right pipeline. The device further comprises a protection part. The opposite ends of the left pipeline and the right pipeline are connected with a left flange plate and a right flange plate respectively, an elastic cushion is fixed to the right side face of the left flange plate, and the left flange plate and the right flange plate are connected through a plurality of connecting bolts. U-shaped grooves are formed in the upper ends of the outer ring faces of the left flange plate and the right flange plate, the protection piece comprises a protection ring, a vertical plate, a screw and a pressing rod, the left flange plate and the right flange plate are jointly sleeved with the protection ring, the right portion of the pressing rod stretches into the U-shaped grooves of the left flange plate and the right flange plate, and the right portion of the pressing rod downwards abuts against the upper end of the protection ring. The upper end of the protection ring is in a U shape and located in the two U-shaped grooves. The utility model solves the problems that the joint of the gas pipeline is easy to leak and the gasket between the flange plates is easy to corrode.

The invention discloses a wafer back contact type positioning and clamping fixing device and a wafer bonding method.The wafer back contact type positioning and clamping fixing device comprises a bonding cavity, a lower suction cup, an upper pressing disc, a controller, a pressing driving mechanism, a positioning pressing rod, a clamping driving mechanism and a flexible clamping jaw, and the lower end of the positioning pressing rod can abut against the upper end wall of the lower suction cup; the clamping driving mechanisms are arranged on the two sides of the lower suction cup in an up-down sliding mode, the flexible clamping jaws are connected with the clamping driving mechanisms, the clamping driving mechanisms drive the flexible clamping jaws to slide in the radial direction of the lower suction cup, the flexible clamping jaws are used for clamping and fixing a wafer, and the inner circumferential wall of each flexible clamping jaw can abut against the outer circumferential wall of the wafer. The limiting block can abut against the lower end wall of the edge of the wafer, and the pressing driving mechanism and the clamping driving mechanism are electrically connected with the controller. According to the technical scheme, the wafer surface can be prevented from being polluted and damaged, the stability of the wafer bonding process can be effectively improved, the rejection rate is reduced, the cost is saved, and the high market application and popularization value is achieved.

The utility model discloses an anti-sticking punching device for bearing forging. The anti-sticking punching device comprises a punching rack, a lifting driving mechanism, a punching head, a punching table, a guide vertical rod, a guide transverse rod, a clamping block and a pressing rod. The guide vertical rod is in up-down sliding fit with the stamping table around the center of the stamping table; supporting springs are arranged at the tops of the guide vertical rods; a push-stop block is mounted at the top of the guide vertical rod; a vertical surface and an inclined surface are arranged on one side surface of the push stop block from top to bottom; the inclined surface is obliquely arranged in the direction far away from the blanking hole from top to bottom; the guide cross rod is in horizontal sliding fit with a bracket on the stamping table; reset springs are arranged at the outer ends of the guide cross rods; the pressing rod is connected with the punching head; the bottom end of the pressing rod is vertically aligned with the top end of the guide vertical rod; when the stamping head moves downwards and upwards, the outer end of the guide cross rod slides along the vertical face all the time, the clamping blocks clamp and restrain forging materials all the time, and the material sticking situation in the stamping process is effectively avoided.

The utility model belongs to the technical field of multi-shaft manipulators, and particularly relates to a multi-shaft manipulator for taking LED (light-emitting diode) bulb shells, which comprises a sliding frame I. A taking component is mounted at the bottom of a lifting frame and provided with a taking plate, and a plurality of air bag inner support clamping jaws are mounted on the taking plate to simultaneously grab a plurality of bulb shells. The material taking plate and the rotating block are fixedly installed through a fixing mechanism, the fixing mechanism is provided with a first fixing block, a second fixing block and an insertion rod, the first fixing block and the second fixing block are fixed through cooperation of the insertion block and the insertion groove, and the insertion rod is inserted from the side face to ensure that the first fixing block and the second fixing block are not separated; and the inserting rod is fixed between the first fixing block and the second fixing block through the quick disassembling mechanism, when the material taking plate needs to be disassembled, only the pressing rod needs to be pressed, so that the trapezoidal block is separated from the clamping groove, the inserting rod is pulled out, then the first fixing block and the second fixing block are quickly separated, disassembling of the material taking plate is completed, and quick disassembling of the material taking plate is achieved.

The invention belongs to the technical field of crane hoisting, and relates to a device for preventing hoisting damage of a steel coil outer ring, the device comprises a clamp body, two ends of the clamp body are fixedly provided with clamp arms, the device further comprises hooking claws, a bearing assembly and a pressing assembly, the two hooking claws are respectively fixed at the end parts of the two clamp arms, the bottom ends of the hooking claws are fixedly provided with claw heads which are bent inwards, and the bearing assembly is fixed on the clamping claws. The bearing assembly comprises a supporting frame and an arc-shaped supporting plate, a pressing block is fixed to the bottom of the arc-shaped supporting plate, the supporting frame is fixedly connected with the bent portion of the bottom end of the hook claw, and the pressing assembly comprises a pressing plate and a pressing rod. According to the steel coil hoisting device, the bearing assembly and the pressing assembly are arranged, the steel coil is clamped from the inner ring surface and the outer ring surface of the steel coil through the bearing assembly and the pressing assembly correspondingly, and meanwhile when the bearing assembly and the pressing assembly hoist the steel coil, the bearing assembly and the pressing assembly cannot extrude the edge of the steel coil; and the edge of the outer ring of the steel coil is effectively prevented from being damaged in the hoisting process.

The invention discloses a cabin door opening and closing mechanism of an unmanned aerial vehicle garage, the unmanned aerial vehicle garage and a vehicle, the cabin door opening and closing mechanism of the unmanned aerial vehicle garage comprises a connecting rod assembly, the connecting rod assembly is suitable for being in transmission fit with a driving motor, the connecting rod assembly comprises a cross rod and a pressing rod, and the cross rod is suitable for being connected with a cabin door of the unmanned aerial vehicle garage; the transverse rod is pressed by the pressing rod; and the elastic buffer piece is arranged between the cross rod and the pressing rod, so that the elastic buffer piece is in elastic buffer fit with the cross rod and / or the pressing rod when the pressing rod presses the cross rod. Therefore, the elastic buffering piece is arranged between the cross rod and the pressing rod, when the pressing rod presses the cross rod, the elastic buffering piece can be in elastic buffering fit with the cross rod and / or the pressing rod, in this way, when the cabin door is excessively closed, the elastic buffering piece can absorb the abutting force through deformation, and the pressing rod can be prevented from continuously and strongly pressing the cross rod; stress at the abutting position of the pressing rod and the transverse rod is prevented from being sharply increased, and therefore the stability and the service life of the cabin door opening and closing mechanism can be improved.

The invention relates to the technical field of welding, and discloses continuous goods shelf supporting strip welding equipment and method. The supporting strips are attracted through the magnets at the bottoms of the pressing plates, the supporting strips are ensured to be always centered and aligned in the process that the supporting strips move downwards to be attached to the frame in cooperation with lateral pressure applied to the side walls of the supporting strips through the pressing rods and the pressing rollers, and lateral deviation is avoided; when the pressing rod is reset in the later period, the ejector rod moves along with the pressing rod and directly acts on the edge welding position, so that extrusion force directly acts on the seam, gaps are eliminated, too large welding seams are avoided, supporting strip bending caused by too large center stress is prevented, and it is guaranteed that the supporting strip is tightly attached to the frame so as to improve the welding precision; and meanwhile, when the main electric push rod drives the pressing plate to move downwards, the T-shaped frame is synchronously pushed to slide along the sliding rail through cooperation of the L-shaped frame, the shifting rod and the sliding block, the goods shelf outer frame is driven to be automatically switched to the next to-be-welded position, manual adjustment is not needed, the procedure interval is greatly shortened, automatic welding is achieved, and the production efficiency is effectively improved.

The invention discloses a tool clamp for automobile part machining, and relates to the technical field of automobile part machining, the tool clamp comprises a fixing frame, a workbench is arranged in the fixing frame, a first conveying part and a second conveying part are arranged above and below the workbench respectively, and mounting assemblies are arranged at the upper end and the lower end of the workbench. According to the tool clamp for machining the automobile parts, the clamping blocks are controlled to move towards the inner side, a system can effectively clamp the parts, meanwhile, the clamping blocks move to drive a transverse rod, a vertical rod and a pressing rod to move synchronously, the inclined face of the pressing rod makes contact with the tops of the parts, pressure is applied to the top of the parts, and pressing treatment is conducted; by means of the design, the clamping stability is improved, the height of the pressing rod can be adjusted according to the height of the part, and the pressing treatment suitableness and the stability of the part are guaranteed.

The utility model provides a clamping mechanism with a pre-positioning function, which comprises a first pre-positioning mechanism, a second pre-positioning mechanism, a third pre-positioning mechanism, a clamping mechanism and a limiting assembly, and the first pre-positioning mechanism pushes a translation assembly through a first manual rod assembly; the second pre-positioning mechanism is matched with the first bolt through a bolt positioning seat and is matched with the second bolt through a sleeve of a pre-positioning bolt seat; the third pre-positioning mechanism pushes a third bolt through a second cylinder; two ends of a pressing rod of the clamping mechanism are respectively matched with the first bolt and the second bolt through pressing heads; according to the utility model, accurate pre-positioning is realized through the first pre-positioning mechanism, the second pre-positioning mechanism and the third pre-positioning mechanism, and accurate matching of components in processes of assembling, positioning, welding and the like is ensured; the stable positioning function is achieved through the bolt positioning base, the first bolt, the pre-positioning bolt base, the second bolt, the second air cylinder, the third bolt and other assemblies, the quality of the connecting technology is remarkably improved, and the uniformity of a welding seam and the stability of a connector are guaranteed.

The invention provides a bearing peach-shaped channel superfinishing grinding device which comprises a base, and a workpiece rotating supporting mechanism and an oilstone swinging mechanism are arranged on the base. The workpiece rotating and supporting mechanism comprises a left tip and a right tip, the left tip is provided with a drive plate and a heart-shaped chuck, and the position of the right tip in the axial direction is adjustable. A mounting seat of the oilstone swinging mechanism can be fed in the left-right direction and the front-back direction and comprises an oilstone swinging rotating shaft capable of rotating in a reciprocating mode in the axial direction, an oilstone frame is arranged at the output end of the oilstone swinging rotating shaft, an oilstone box is arranged at the outer end of the oilstone frame, oilstone is assembled in the oilstone box in the vertical direction, and the axial extension line of the oilstone swinging rotating shaft and the oilstone intersect at a point O; and an oilstone pressing rod and a hydraulic valve are arranged on the oilstone frame. The device can finish superfinishing grinding of two curved surfaces of a peach-shaped channel under the condition that one device is used for one-time clamping, meanwhile, the device can be suitable for superfinishing of a shaft workpiece with a plurality of channels, and the adverse effect of multiple times of feeding on the superfinishing grinding precision can be effectively reduced.

The hook comprises a hook body, an anti-disengaging pawl, a connecting rod, a pressing rod and a releasing mechanism, the anti-disengaging pawl is rotatably arranged on the neck portion of the hook body, one end of the anti-disengaging pawl can abut against the tail end of the hook body to seal the opening portion of the hook body when the anti-disengaging pawl rotates, and the two ends of the connecting rod are connected with the anti-disengaging pawl and the pressing rod through hinge structures respectively. One end of the pressing rod is connected to the opening of the lifting hook through the elastic reset element, the other end of the pressing rod is connected with the releasing mechanism, at least part of the pressing rod is located above a groove of the lifting hook in the initial state of the elastic reset element, and when the lifting hook is matched with the rigging, the rigging presses down the pressing rod to trigger the connecting rod to drive the anti-disengaging pawl to rotate to seal the opening of the lifting hook. When the rigging is lifted to be separated from the groove of the lifting hook, the pressing rod is reset under the action of the elastic reset element and the release mechanism to drive the connecting rod to rotate the anti-falling pawl to open the opening part of the lifting hook. According to the application, automatic opening of the anti-unhooking device is realized, and the problem that the anti-unhooking device is inconvenient to open manually in some special occasions is solved.

The utility model relates to the technical field of concrete preparation, and discloses a steel fiber reinforced concrete compression resistance and impermeability detection device which is characterized in that electric pressing rods are symmetrically arranged at the upper end of a rack of a top supporting table, and the telescopic ends of the electric pressing rods are provided with a tool table which is guided by arm power supporting rods; a detection tool vertically opposite to the material placing table is installed in the middle of a rack of the tool table in a penetrating mode. According to the utility model, by utilizing the pressure guiding combination of the electric pressure rod and the tool table, the detection tool is pressed down to the concrete block, rated downward pressure is applied to the concrete block, the compression resistance of the concrete block is detected, and then water is injected into the water injection cavity through the water through valve based on the compression of the pressure seat in the detection tool and the concrete block, so that the concrete block can be detected. And under the downward pressing of the pushing and injecting rubber plug pushed by the lifting driving assembly, downward pressing seepage force is applied to water, synchronous anti-seepage detection is carried out on the concrete block subjected to anti-pressing detection, and good linkage detection performance is achieved.

A positioning jig, comprising a base plate (110) and a first positioning assembly. The first positioning assembly comprises a supporting rod (121), a pressing rod (122), and a driving module. The supporting rod (121) is arranged on the base plate (110) and used for supporting one side of a workpiece along a first direction. The pressing rod (122) is rotatably arranged on the base plate (110) about a rotation axis. The driving module is arranged on the base plate (110), and is connected to the pressing rod (122) so as to drive the pressing rod (122) to rotate about the rotation axis. During rotation, the pressing rod (122) can press against the other side of the workpiece along the first direction to tightly press the workpiece against the supporting rod (121). Since the workpiece is tightly pressed by the rotating pressing rod (122), the driving module only needs to drive the pressing rod (122) to rotate, eliminating the need to arrange a driving structure in the Z direction. As a result, the positioning jig occupies less space in the Z-direction, and is applicable to scenarios where Z-direction space is limited. The present invention further relates to a test apparatus.

The sole pressing machine convenient to open and close comprises a bottom die, a guide frame and an upper cover, the bottom die is provided with a containing groove for placing a shoe tree, the bottom end of the guide frame is arranged at the position, away from the containing groove, of the bottom die, a top base is arranged at the top end of the guide frame, and the upper cover is arranged on the guide frame and can vertically slide in the height direction of the upper cover. The top seat is provided with a first driving device, and the first driving device is used for driving the upper cover to move vertically. The vertical sliding can be realized through the matching of the guide frame and the upper cover, so that a larger opening degree can be realized between the upper cover and the bottom die, a worker can conveniently observe the accommodating groove, the alignment of a vamp and a sole is more accurate, and the pressing stability is ensured; and meanwhile, the lower wall of the upper cover can facilitate installation and adjustment of the pressing rod and the vamp covering structure, so that the applicability of the sole pressing machine is improved, and the production efficiency and the use convenience are improved.

The invention provides a load rejection mechanism and method for a deep sea buoyancy platform. The load rejection mechanism comprises a load, a fixed frame structure, an electric explosion bolt, an electric explosion bolt pressing rod, a safety pin, a lever structure and a lever connecting device. A lever connecting device is fixed on the load; the lever structure is connected with the fixed frame structure through a rotating shaft, a first end is limited by a lever connecting device, and a second end penetrates out of the lower part of the fixed frame structure and is pressed and limited by an electric explosion bolt pressing rod and a safety pin on the fixed frame structure; limiting of the second end of the lever structure is relieved by taking out the safety pin or detonating the electric explosion bolt, the lever structure is turned over, the first end of the lever structure is separated from the lever connecting device, and load rejection is completed. Compared with a single triggering mode of a traditional load rejection mechanism, the load rejection mechanism can be switched between autonomous triggering starting and manual triggering starting at any time, the switching mode is simple and efficient, and the load rejection mechanism adapts to different environment working conditions and equipment requirements.

The utility model relates to the technical field of plate shearing machines, and discloses a plate adsorption type plate shearing machine which comprises a plate shearing machine body, a positioning assembly is arranged in the plate shearing machine body, a shearing mechanism is arranged at the top of the plate shearing machine body, and a buffer plate is fixedly connected in the plate shearing machine body. The positioning assembly comprises an anti-warping assembly and an adsorption assembly, the anti-warping assembly is arranged in the plate shearing machine body, the adsorption assembly is arranged in the plate shearing machine body, the anti-warping assembly comprises connecting bases, and the connecting bases are fixedly connected to the front face and the back face of the plate shearing machine body. In the using process of the plate adsorption type plate shearing machine, a plate is adsorbed through the arranged suction cups so as to be positioned, then a first bolt is twisted according to the thickness of the plate to drive a pressing rod, the pressing rod is pressed at one end of the plate, the plate can be prevented from tilting during shearing, and the shearing precision is guaranteed.

A cover fastening device of a side-opening packaging box, comprising: a rack, wherein the rack is provided with a cover fastening platform (100), a bottom surface suction cup (101), a packaging box positioning and clamping device, and a box taking and transferring device. The rack is further provided with a cover-pushing-in-box device, a box cover pressing device, a box cover blocking device and a box cover tongue expansion device. The box taking and transferring device comprises: a transfer linear module (21), wherein the transfer linear module (21) is provided with a vertically arranged box taking electric cylinder (2), a box taking mounting base is arranged on a driving rod of the box taking electric cylinder (2), a box taking pressing plate (26) and at least two box taking suction cups (27) arranged in the length direction of the packaging box are arranged on the box taking mounting base, and the box taking suction cups (27) can penetrate through the box taking pressing plate (26). The cover-pushing-in-box device comprises: a push plate (32), and first and second push guiding plates (33, 34) correspondingly arranged at the upper and lower ends of the push plate (32). The box cover pressing device comprises a pressing rod (4) capable of moving in three dimensions. The box cover blocking device comprises a right-angle baffle (5) capable of moving in three dimensions. The box cover tongue expansion device comprises: an expansion lifting / lowering air cylinder (60) arranged on the rack in the vertical direction, an expansion suction cup air cylinder (63) is arranged on a piston rod of the expansion lifting / lowering air cylinder (60), and an expansion suction cup (6) is arranged on a piston rod of the expansion suction cup air cylinder (63). The cover fastening device can automatically close a clip to close a larger cover and a smaller cover, and automatic sealing of a box opening of a side-opening packaging box is achieved.

The utility model discloses a high-strength shock-absorbing elevator counterweight frame, which relates to the technical field of elevator counterweights, including a counterweight frame, a mounting frame is provided at the upper end of the counterweight frame, a traction disc is provided at the upper end of the mounting frame, a plurality of groups of pressure rods are provided on the inner side of the counterweight frame, and the sides of the plurality of groups of pressure rods are provided with limiting nuts, the limiting nuts are located on the outer surface of the upper end of the counterweight frame, and a pressure plate is provided at the lower end of the plurality of groups of pressure rods. The utility model discloses a high-strength shock-absorbing elevator counterweight frame, which can compress the concrete counterweight block by providing pressure rods and pressure plates, and the pressure plate will not be easily loosened by providing the limiting nuts, so that the concrete counterweight block is compressed, which is not only simple and convenient to operate, but also by providing a plurality of groups of pressure rods, so that the compression effect will not be easily reduced due to the loosening of a single pressure rod, and the vibration and noise caused by the collision between the concrete counterweight blocks are reduced, thereby improving the service life.

When the improved structure of the sole pressing machine works, a second driving mechanism is used for driving a pressing rod to move to a position staggered with a working space, so that a manipulator can smoothly place a workpiece in the working space, and then the second driving mechanism is used for driving the pressing rod to move to a position opposite to the working space; compared with the prior art, a displacement function is added to the pressing rod, the discharging action of the mechanical arm is avoided or reset by moving the position of the pressing rod, the overall structure is simple, the operation is convenient, and the cost is low. The problem that a traditional fixed pressing rod is prone to hindering the discharging action of the mechanical arm is effectively solved.

The invention provides a torque arm part clamping device and method. The torque arm part clamping device comprises a base plate, a clamp and a cushion block assembly. The clamp comprises a first base, a pressing plate and a pressing rod, one end of the pressing rod is connected to the first base, and the other end of the pressing rod is connected to the pressing plate so that the pressing plate can apply pressure. The two clamps are symmetrically arranged in the X direction, and an acute angle is formed between the two first bases. The multiple cushion block assemblies are arranged between the two clamps, and the multiple cushion block assemblies are arranged in the Z direction; the cushion block assembly comprises a second base and at least one ejector rod connected to the upper end of the second base in a threaded mode. The first base and the second base are installed on the base plate. The online measuring system of the machine tool is utilized, the thought of automatic, reliable and efficient alignment and judgment is achieved, the B shaft of the part is rapidly aligned, it is guaranteed that the allowance of all end faces, namely holes, is uniform, and the tool connecting problem of appearance machining and end face finish machining is solved.

The utility model relates to the technical field of sewing machines, and discloses a presser foot lifting mechanism of a sewing machine, which comprises the sewing machine, a motor is fixedly connected on the side wall of the sewing machine, an output shaft of the motor extends into the sewing machine and is fixedly connected with a turntable, and a connecting rod is fixedly connected on the side wall of the turntable. The rod wall of the connecting rod is movably sleeved with a movable rod, a connecting cylinder is fixedly connected to the bottom of the movable rod, a damping pad is slidably arranged on the inner wall of the connecting cylinder, and a pressing rod is fixedly connected to the bottom of the damping pad. The output shaft of the motor rotates to drive the rotating disc to rotate, the rotating disc rotates to drive the connecting rod to move, the movable rod is movably connected with the connecting rod in a sleeved mode to move along with the rotating disc, the movable rod moves to drive the connecting cylinder, the pressing rod and the presser lifting foot to move along the rotating track of the rotating disc, sewing cloth is moved, automatic feeding is conducted, and sewing efficiency is improved.

The present invention relates to the technical field of tying machines, and in particular to a high-performance tying machine. The tying machine includes a frame body, a clamping arm, an operating handle assembly, an upper head and a lower head. The clamping arm and the operating handle assembly are both rotatably arranged on the frame body. The operating handle assembly is configured to control the movement of the clamping arm. The upper head is arranged on the clamping arm, and the lower head is arranged on the frame body corresponding to the movement track of the upper head. When the two heads come into contact, the first convex shaft on the lower head can abut against and limit the first pressing rod, and the second convex shaft can buffer the second pressing rod, so that no sliding misalignment occurs between the two heads, effectively avoiding the situations of tape detachment and nail jamming of the tying machine, and greatly improving the working stability of the tying machine and the working efficiency of agricultural operations.

The utility model discloses an aerial work platform anti-collision device which comprises a mounting base, a telescopic rod, a limit switch and a spring, and the interior of the mounting base is hollow and forms a first space; the telescopic rod is arranged in the mounting base, the telescopic rod is arranged in the first direction and moves in the first direction, a pressing plate is arranged on the telescopic rod, the pressing plate protrudes out of the outer surface of the telescopic rod, and the pressing plate is perpendicular to the telescopic rod; the limiting switch is arranged on the outer side of the mounting seat and below the pressing plate, and the limiting switch is provided with a contact surface in contact with the pressing plate; the spring is arranged in the mounting base, one end of the spring abuts against the lower surface of the pressing plate, and the spring drives the pressing plate and the telescopic rod to move in the first direction. According to the utility model, the limit switch is adopted, a circuit can be disconnected when collision occurs, and meanwhile, the controller can detect a system loop in real time and limit the lifting action, so that collision and extrusion accidents are avoided. The spring is adopted, the pressing rod and the telescopic rod are reset in time to keep the working process, and the working efficiency is improved.

The invention discloses a hub bolt press-fitting device of a hub assembly, and relates to the technical field of hub assembly machining, the hub bolt press-fitting device comprises a rack and alignment assemblies, a hydraulic cylinder is arranged at the top of the rack, a lifting plate is connected to the bottom of the hydraulic cylinder, pressing rods are fixed to the two ends of the bottom of the lifting plate, and the alignment assemblies are arranged at the two ends of the middle of the rack; the alignment assembly comprises a supporting ring, a feeding disc, a fixing plate, a vertical plate, a guide block, a baffle, a first magnet and a second magnet. A baffle and a supporting ring can shield the bottom of a hub bolt in an outer end hole of the feeding disc, the hub bolt can be temporarily stored, after a hub assembly is located on the lower portion of the feeding disc, a hydraulic cylinder drives a lifting plate to move downwards at the moment, a pressing rod can firstly extrude a guide block, the guide block slides towards the outer side along a fixing plate, and then the hub assembly is conveyed to the lower portion of the feeding disc. At the moment, the baffle cannot shield the hub bolt on the upper portion, and the hub bolt can just fall into a hub assembly hole in the lower portion.