52results about How to "Stable contact force" patented technology

A method of tracking and acting on events related to the delivery of a mail piece is provided. An integrated record associated with an addressee of a mail piece is created. The mail piece is given a unique identifier, is associated with the addressee, and is placed in a mail stream with the date and nature of associated delivery events being recorded. After a predetermined delivery event occurs, a follow-up communication is transmitted to the addressee, and the date of this follow-up communication is recorded. The date of any response by the addressee to the follow-up communication is also recorded. To the integrated record associated with the addressee is added the date and nature of the delivery events associated with the mail piece, the date of the follow-up communication, and the date of any response by the addressee to the follow-up communication.

The invention discloses a self-adaptive adjusting method based on a multi-degree-of-freedom adjusting mechanism of grinded/polished workpieces. The parallelism of upper and lower surfaces of the workpieces is measured; the surfaces of classification polishing discs are finished; an image acquiring analysis system acquires images of the surfaces of the classification polishing discs, and generates three-dimensional topography data of the surfaces of the classification polishing discs; meanwhile, the workpieces with fixed gestures are contacted with the rotating classification polishing discs; a high-precision three-dimensional pressure sensor system acquires force stressed on the workpieces; the surface topography characteristics of the classification polishing discs are obtained by using the force; two surface topography data are synthesized to plan workpiece machining poses so as to generate workpiece pose conversion data; and the workpiece machining positions and gestures are controlled according to the generated workpiece pose conversion data. The method can effectively improve the parallelism of the upper and lower surfaces of the workpieces, adjusts the workpiece space poses in real time, and guarantees constant contact pressure in workpiece machining to obtain the workpieces with smooth and nondestructive surfaces and good shape surface precision.

The invention discloses an injection moulding machine which includes a die locking system and an injection moulding system, wherein the die locking system includes a fixed die plate. The injection moulding system is provided with a servo hydraulic system which is used for driving the injection moulding system to move relative to the fixed die plate. The servo hydraulic system includes a total-moving oil cylinder and a total-moving oil cylinder hydraulic control mechanism which are communicated with each other through an oil pipe. The injection moulding machine is high in universality, is high in sensitivity and control precision, can alleviate nozzle abrasion and prevent rubber leakage, is better in die compatibility and technological adaptability and is low in cost.

The invention discloses a coaxial probe short-circuit mechanism and an operation method thereof. The coaxial probe short-circuit mechanism structurally comprises a coaxial probe, a short-circuit plate, a base, a cover board and a cushion block, wherein the short-circuit plate is made of a flexible conductive material, and is fixedly arranged on the cushion block; a probe limiting hole through which the coaxial probe passes is formed in the base; and a limiting sliding block for locking the coaxial probe is also arranged on the base. The limiting sliding block is pressed to slip downwards in an operation; an open end of the coaxial probe simultaneously passes through the probe limiting hole and a through hole in the limiting sliding block; the short-circuit plate is pressed by the open end of the coaxial probe; the limiting sliding block is loosened; a sliding block spring rebounds; and the limiting sliding block slips upwards, so that locking and limiting of the coaxial probe are achieved. According to the coaxial probe short-circuit mechanism, a good contact can be formed by the open end of the coaxial probe and the short-circuit plate; the service lifetime of the short-circuit plate is prolonged; the clamping operation is convenient, fast and reliable; and the consistency of multiple calibrations is good.

The invention relates to an automatic control device and control method for converting contact force into displacement during electric spark deposition bead weld. The automatic control device mainly comprises a feeding mechanism, a floating elastic mechanism, a gun clamping mechanism, a welding gun, an electric control system and the like and converts the contact force between an electrode and a workpiece into displacement of a floating sliding table. A non-contact displacement sensor is adopted for detection, conversion from tension and pressure measurement to displacement measurement is achieved, the strength of a mechanical system is improved, and measurement of micro contact force can be achieved. The contact force between the electrode and the workpiece is determined according to the displacement of the floating sliding table, a controller and the feeding mechanism are used for controlling the electrode to move along the axis of the electrode, closed-loop control over the contact force is achieved, and vibration between the electrode and the workpiece can be reduced through spring damping of the floating elastic mechanism; and the stability and reliability of automatic control of the contact force between the electrode and the workpiece in the deposition process are remarkably improved.

The invention discloses a differential clamping inchworm-type piezoelectric linear motor. The motor comprises four clamping discs, an actuating module, two guide mechanisms, two connecting rods and two connecting springs. The four clamping discs, the two connecting rods and the two connecting springs form two units. The four clamping discs are all provided with center holes, the two clamping discsof each unit sleeve the connecting rods through the center holes, the two clamping discs included by each unit are divided into a main clamping disc and an auxiliary clamping disc, the main clampingdiscs are fixedly connected with the actuating module, and the auxiliary clamping discs are connected with the main clamping discs through the connecting springs; the four clamping discs are equal inshape and comprise circular discs, and piezoelectric ceramics are eccentrically arranged on the circular discs of the four clamping discs; each guide mechanism comprises a C-shaped sleeve, a guide rail is convexly arranged on the inner wall of the sleeve, and guide grooves are concavely arranged on the peripheral walls of the four clamping discs; the two units are respectively arranged in the twosleeves, and pre-tightening elements are additionally arranged to press the sleeves on the four clamping discs so that the guide rails are matched with the guide grooves. The contact force of the motor is stable during the working process.

An electric connector with strengthened clamp capability, comprising of: the main body seat, the camouflage crust, the plural number of conducting terminal, and the clamp groupware. The clamp groupware fixes on the main body seat corresponding with the conducting terminal, the camouflage crust tables the main body and covers the outside of the main body seat with the opposite direction of the clamp groupware inserting direction; the clamp groupware sets the plural number of the press-connecting slice, which forms the superposition in the main body seat with the spring slice of the camouflage crust and interferes at the first direction mutually, in order that the clamp groupware and the camouflage crust is not easy to deviate from the main body seat or create the displacement.

A bush for holding first and second member includes a shaft portion having two ends, and a flange integrally formed on one of the two ends of the shaft portion to extend radially outwardly therefrom. The flange has at least one first pressing portion capable of deforming in an axial direction of the shaft portion for elastically pressing one of the two second member toward the other.