49results about How to "Avoid mechanical shock" patented technology

The present invention discloses a double-direction double-speed positioning control method. At the beginning, equipment is arranged at the point A, and the equipment is required to be positioned at the point O. At the beginning, the equipment moves to the point B at high speed along the close direction and then is changed into low speed closing to move to the point C, the close output of the equipment is switched off, and the equipment keeps on moving under the inertia effect and stops moving at the point D. In the positioning control, the selection of four control parameters can influence the positioning precision and the total time required for positioning, so as to obtain the best value of four parameters. The present invention discloses the method for automatically identifying by the actual movement of the equipment; the present invention also discloses a self-adaptation method of the parameters; the present invention also discloses the control function of eliminating the mechanical gap and the measures for preventing the output from being switched frequently between high speed and low speed and between the low speed and the stop. The positioning control method disclosed by the present invention has the advantages of high positioning precision and fast positioning time.

The invention discloses a test piece guide-in mechanism of a ceramic material heating thermal shock test box. The test piece guide-in mechanism comprises a guide cylinder. A guide cylinder opening for placing a test piece is formed in the lateral side of the upper portion of the guide cylinder. A connecting lug for fixing the guide cylinder is disposed at the lower end of the guide cylinder opening. Two opposite rotary shaft supports are disposed on the lateral side below the connecting lug. A rotary shaft penetrates the two rotary shaft supports. Two ends of the rotary shaft extends out of the two rotary shaft supports. A retaining piece is mounted on the rotary shaft between the two rotary shaft supports. The retaining piece extends into the guide cylinder through a slot in the lateral wall of the guide cylinder. The rotary shaft extending end close to the connecting lug side is provided with a counter weight hanging rod. The suspension end of the counter weight hanging rod is provided with counter weight. The other extending end, opposite to the counter weight hanging rod, of the rotary shaft is provided with a shifting piece. A suspension wire is disposed at the top end of the guide cylinder. The test piece guide-in mechanism has the advantages that a normal-temperature cavity isolated from a heating furnace can be built, and the test piece is prevented from being radiated by high temperature; mechanical shock of the test piece is avoided, heating-resistance thermal shock performance tests can be performed on multiple test pieces at the same time, and high efficiency is achieved.

The invention relates to a temperature tester based on a film type temperature sensor and a manufacturing method, comprising: a cylinder outer protection tube, wherein a first space and a second space are formed by concaving inwards on the upper part and the lower part along the length direction and connected together through a via hole; a film type temperature sensor, arranged in the inner of the outer protection tube through the first space, the second space and the via hole; and fillings, filled in the first space and the second space of the outer protection tube, to fix the film type temperature sensor in the inner of a first protection tube and a second protection tube to become an integer. According to the invention, the film type temperature sensor in the space of the outer protection tube is processed by the filled fillings or ceramic paste based on the temperature tester of the film type temperature sensor, and the pins of the sensor and the wire connecting parts can be fixed stably. Outer connecting metal wires at the lower space are fixed stably through the fillings, therefore, outer mechanical impact is effectively prevented to the film type temperature sensor through the outer connecting metal wires at the lower part.

The invention is applicable to the technical field of robot control and provides a robot control method, a robot control system and a robot. The robot control method comprises the steps that when movement instruction is received, the parameter value of the movement instruction is acquired, and calculation is conducted; the maximum torque value of all movement axes of the robot is acquired, the maximum torque value of each movement axis is compared with the preset maximum torque valve of each movement axis, and if a movement axis whose maximum torque value is larger than the preset maximum torque value, the movement axis is adopted as a target movement axis; and according to the preset maximum torque value of the target movement axis, the maximum accelerated speed value and the maximum decelerated speed value of the target movement axis are calculated, speed planning is conducted on the robot according to the maximum accelerated speed value and the maximum decelerated speed value of thetarget movement axis, and a first speed planning result is acquired and output so that the accelerated speed value of the robot can be adjusted. By means of the robot control method, the movement state of the robot can be detected and judged in real time, speed planning and adjustment of the accelerated speed value are conducted on the robot, and loss of the robot is lowered.

The present invention provides a metal mixer event band-type brake limit control device. The device comprises a contact KM1, a UPS, an operation handle SGS1, an emergency stop switch SE1 and a metal mixer master controller. The metal mixer master controller comprises a metal mixer front limitation position SQ1A, a metal mixer inclination position SQ1B, a metal mixer original position SQ1E and a metal mixer rear limitation position SQ1F. The UPS is configured to supply power for a band-type brake and allow the limitation position of the master controller to connect in series with the band-typebrake control loop. When the metal mixer is suddenly lost in power in the inclination process, the UPS supplies power to the band-type brake, the band-type brake is opened through remote operation toallow the metal mixer to perform automatic return. When the metal mixer is returned to an initial original position, the limitation motion is performed, the band-type brake is locked, and the metal mixer generating mechanical shock is avoided.

The invention provides a preparation device and method for a porous low-melting-point metal exoskeleton. The preparation device for the porous low-melting-point metal exoskeleton comprises a shell, a foaming device and a gas generation device, wherein the foaming device and the gas generation device are located inside the shell, and the foaming device comprises a foaming cavity, an electrode plate and a low-melting-point metal and foaming agent mixture. The preparation device provided by the invention can combine the unique physical and chemical properties of low-melting-point metal and the mechanical property advantages of light weight and high strength of a porous structure, and can be effectively used for medical mechanical exoskeletons.

The invention relates to a grounding switch switch-off buffering device comprising a mounting base and a buffering portion, wherein the buffering portion is an assembled multi-stage buffer body. The multi-stage buffer body includes at least two horizontal buffer portions and a vertical buffer portion. The horizontal buffer portions are successively mounted on the vertical buffer portion from top to bottom, and are a rubber buffer structures. The vertical buffer portion is a spring buffer structure. The grounding switch switch-off buffering device uses the assembled structure, and can reduce and increase the assemblies according to actual needs in order to form products with different buffering requirements. The buffering portion of the present invention is the multi-stage buffer body, thatis, a combination of a rubber cushion buffer and a spring buffer. The rubber cushion can reduce the metal bump between the contact portion of the buffering device and the grounding knife switch of agrounding switch. The switch-off inertia of the grounding switch can be effectively buffered by compressing the spring buffer. The multi-stage buffer body is configured to reduce the switch-off inertia of the grounding switch, avoids the mechanical vibration caused by the switch-off inertia, and enhances the switch-on/switch-off stability and reliability of the grounding switch in operation.

The invention provides a method and a system for controlling double door locks. The method includes: detecting whether or not a first door lock and a second door lock are locked synchronously within a preset first time interval when the situation that the first door lock is at a secondary lock position is detected; when the situation that the first door lock and the second door lock are at the secondary lock position simultaneously is detected, respectively controlling the first door lock and the second door lock to move to a primary lock position from the secondary lock position according to a determined PWM (pulse-width modulation) duty ratio; judging whether or not the first door lock and the second door lock are at the primary position simultaneously within a preset second time interval; when the first door lock and the second door lock fail to be at the primary lock position simultaneously, controlling the first door lock and the second door lock to stop locking, so that damage to a rear door and a body of an automobile due to asynchronous locking of the double door locks and excessively high locking motor voltage can be reduced.

The invention relates to a gravity type capable-of-combining rail type wheel axle stereoscopic warehouse which comprises 1-50 layers of wheel axle supports and a plurality of wheel axle storage positions evenly distributed on the wheel axle supports. Each layer of wheel axle support comprises two rail type wheel axle support long cross beams which are placed in parallel and are provided with gradients along the length direction relative to a horizontal plane, wheel axle outlet fixing type stopping blocks arranged at one ends of the rail type wheel axle support long cross beams, and the plurality of wheel axle storage positions distributed on the rail type wheel axle support long cross beams. One wheel axle is stored in each of the plurality of wheel axle storage positions. A warehouse-in side wheel axle stopping block is arranged at one end of each wheel axle storage position, a warehouse-out side wheel axle stopping block is arranged at the other end of the each wheel axle storage position, and a goods allocation center stopping block is arranged at the center of each wheel axle storage position. Each wheel axle outlet fixing type stopping block and each warehouse-out side wheel axle stopping block have the same direction. A wheel axle is arranged between each warehouse-in side wheel axle stopping block and each warehouse-out side wheel axle stopping block. Two adjacent layers of wheel axle supports are connected through a between-layer support perpendicular to the long cross beams. The gravity type capable-of-combining rail type wheel axle stereoscopic warehouse is convenient to use, low in cost and suitable for various fields.

The invention in particular relates to an enamel coating (7) for coating a metal surface (5) of an article (3). For obtaining a surface roughness suitable for adequately bonding further coating layers (8) requiring mechanical bonding interactions, the enamel coating (7) comprises a mixture of a catalytic enamel and at least one of a normal enamel and pyrolytic enamel.

The invention discloses a material moving mechanism applied to an automatic assembly line, and relates to the technical field of automatic equipment. Comprising an automatic assembly line, the automatic assembly line comprises an inclined plate and a workpiece, the automatic assembly line is provided with a material moving mechanism, the material moving mechanism is located at one end of the inclined plate, and the material moving mechanism and the inclined plate are matched to achieve movement of the workpiece from top to bottom; the other end of the connecting ejector rod is hinged to the middle of the back of the movable plate. A workpiece moves downwards from the inclined plate to the movable plate, the workpiece is converted into a horizontal state from an inclined state in the downward moving process under the action of the material moving mechanism, the workpiece stably moves from top to bottom, and mechanical impact on the workpiece is avoided.

The invention discloses a large-range laser scanning device based on high-density echo analysis and a control system thereof, and belongs to the technical field of control engineering and control systems. According to the laser scanning device, through the arrangement of a first rotating device, a second rotating device and a third rotating device, the circumferential rotation of a reflecting mirror in the horizontal direction and the vertical direction is achieved under the condition that the reflecting mirror rotates, and the multi-angle and multi-direction three-dimensional laser scanning with the scanning device as the center can be formed. Meanwhile, a damping structure is designed on the mechanical structure, so that mechanical vibration caused by high-speed rotation can be effectively avoided, the service life is prolonged, and the detection precision is improved. The laser scanning device provided by the invention can be mounted on a mobile carrier and is used for detecting obstacles on a driving route. The invention further provides a control system for motion control of the laser scanning device, and an algorithm for calculating the track and the sight line of the carrier is designed to help an upper computer system to make a decision command.

The invention discloses an upper buckle positioning device, comprising a plate body. The inner of the plate body is provided with a through stamping hole from the top to the bottom, the middle part of the stamping hole is horizontally provided with an upper buckle groove in communication, the upper buckle groove is opened on one side of the plate body, and a permanent magnet is embedded adjacent to the stamping hole in the plate body. The device of the invention has simple structure and convenient use. Due to that the upper buckle is supported and positioned by the magnetic force without the direct using of solid support component, a stamping vertical bar can press the upper buckle down without the direct stamping on the upper buckle positioning device when stamping, thereby avoiding the mechanical shock when stamping the upper buckle positioning device and achieving more stable operation of the dotter. Meanwhile, the upper buckle positioning device can not be damaged due to the bearing of the impacting force, thereby prolonging the service life of the device greatly, saving the work load for changing the upper buckle positioning device as well as reducing the use cost.

The invention discloses a robot and a door body control system and a door body control method thereof. The door body control system comprises a first detection part, a second detection part and a control part, wherein the first detection part is used for detecting whether a door body enters a completely-opened state or not in the door body opening process; the second detection part is used for detecting whether the door body enters a completely closed state or not in the door body closing process; the control part is connected with the first detection part and the second detection part and is used for controlling the door body to stop moving after the first detection part is triggered and controlling the door body to stop moving after the second detection part is triggered; the driver is connected with the control part and is used for driving the door body to rotate; and the transmission mechanism is arranged between the driver and the door body and is used for driving the door body to rotate. According to the door body control system, the speed of the door body can be controlled when the door body enters the completely-opened state and the completely-closed state, so that mechanical impact can be prevented when the door body is completely opened and completely closed, and the service life of the door body can be prolonged.