36results about How to "Appropriate clamping force" patented technology

In a clamp having a pair of clamp members which sandwich a plurality of pipes having cylindrical cross-sections of different diameters, each of the clamp members including an elastic body having a plurality of concave portions formed therein and a reinforcing plate fixed to an outer side surface of the elastic body, the dimensions of each portion of the elastic bodies are set such that the compression ratio of the elastic bodies with respect to all of the pipes is made the same. For example, when the diameters of two pipes having different outer diameters are made D1 and D2, the curvature radii of the concave portions of the elastic bodies are made R1 and R2, and the distances from mating faces of the elastic bodies to the reinforcing plates are made L11, . . . , L22, then the dimensions of each portion of the elastic bodies are set so as to satisfy the relationship [(D1−2R1) / (L11+L12−2R1)=(D2−2R2) / (L21+L22−2R2).

Apparatus for supporting a coaxial cable, or the like, and effecting cutting and stripping operations to remove a portion of one or more layers which concentrically cover a central conductor. A single blade, having a circular cutting edge, is moved in an orbital path about the cable with rotary motion of a motor translated to orbital motion of the blade through a plurality of plates relatively movable on crossed, linear, roller bearings and a shaft eccentrically affixed to the motor with the shaft and motor axes at an acute angle to one another. The shaft extends through a spherical bearing mounted in one of the plates, thereby translating nutational motion of the shaft to orbiting motion of the plate which is directly attached to the blade. A unique clamping assembly includes a pair of jaws having respective gear racks engaging a single pinion gear on a motor output shaft for linear movement of the jaws by equal distances in opposite directions. A microprocessor controls the level of current to the motor, thereby adjusting the clamping force applied to the cable, and increases this force during the stripping operation, when maximum axial force is applied to the cable. A guide bushing establishes the radial position of the cable axis and is stationary during blade movement, thereby permitting the opening in the bushing to closely approximate the cable diameter. The position of the bushing is adjustable to align the central axis of the bushing opening with that of the blade cutting edge. The bushing is also movable to an inoperative position to permit unobstructed access to the blade for replacement thereof. A pair of gripping members are movable to engage the severed portion of the covering layer to assist in the stripping operation, and a unique combination of hardware and software is provided for calibrating the position of the gripping members at equal distances from the axis of the cable.

The invention belongs to the instrument panel positioning technical field and relates to an instrument panel positioning mechanism, particularly to an adjustable instrument panel center mechanism. The adjustable instrument panel center mechanism comprises a center fixing base; a sliding base is connected into the center fixing base in a sliding mode; the front end of an inner chamber of the sliding base is provided with two center shaft bearings; a center shaft is connected into the two center shaft bearings in a rotating mode; the front end of the center shaft extends out of a front end cover of the sliding base to be connected with a center head; the front end of an adjustment screw extends into the center fixing base to be connected with a nut plate through threads; the nut plate is connected with the rear end of the sliding base through a bolt. According to the adjustable instrument panel center mechanism, the structure is simple, compact and reasonable, the adjustable instrument panel center mechanism is matched with a fixed center mechanism to abut against two ends of an instrument panel during usage, the front and back position can be adjusted through the center head, the adjustable instrument panel center mechanism can be applied to the axial positioning clamping of different dimensions of instrument panels, the clamping force is appropriate, the adjustment is convenient and rapid, the working efficiency is improved, the using range is extended, and the cost is reduced.

The present invention provides a drill chuck, which solves the original problem of inconvenient opening and easy damage to the tool due to too much clamping force of the drill chuck. There are threads, the rear body is provided with a driving gear, and a driven gear is provided between the jaws and the rear body, the driving gear and the driven gear cooperate with each other, and the driven gear is provided with threads inside, and the threads cooperate with the threads of the jaws The invention can be widely used in the field of mechanical processing.

The invention provides a progressive underdriving five-roller straightening and withdrawal machine with a heat insulation device. The withdrawal and straightening machine comprises a pair of withdrawal rollers and a pair of straightening rollers which are arranged inside a heat insulation cover, and a lower roller. Three underdriving rollers are arranged on a withdrawal and straightening machine base with a refractory castable material and transmitted by a chain wheel and are connected with a speed reducer with a variable frequency speed-regulating motor outside a production line through a coupler and a universal-joint spindle; and two upper driven rollers are arranged on a lifting guide cover pulled by a hydraulic cylinder and provided with a refractory fiber. A cantilever vertical roller is arranged on the withdrawal and straightening machine base; the diameter of the roller can be changed along with the width of casting blank; all the rollers are communicated with water to be cooled; and a plurality of withdrawal and straightening machines are arranged on an overhead base shared by the withdrawal and straightening machines through a tapered wedge. The progressive underdriving five-roller withdrawal and straightening machine has the advantages of preventing billet steel from heat dissipation and oxidation to the greatest degree, improving operating conditions of electromechanical equipment, moving the electromechanical equipment outside the production line so as to facilitate maintenance and management, preventing air leakage on a joint surface by adopting sand seal, and effectively realizing the sealing and cooling of an axial end by adopting an air knife structure.

The invention relates to an electric pinch valve. A stepping motor rotates forwardly and reversely to drive the pinch valve to be opened and closed, so that the pinch valve can loosen or clamp an elastic hose, thereby controlling the on-off state of the fluid in the elastic hose. The electric pinch valve comprises a hose clamp port assembly, a movable valve assembly, a stopping device assembly and a connecting plate (2), wherein the hose clamp port assembly is installed in the central position of the front surface of the connecting plate (2); the movable valve assembly is inserted into a central circular hole (2k) on the back surface of the connecting plate (2) and fixed to the back surface of the connecting plate (2); the stopping device assembly is inserted into an elliptical cavity (2m) on the right side surface of the connecting plate (2); a rotor (4) and a rotor plate (5) of the movable valve assembly are fixed to a motor rotating shaft and rotate coaxially; two microswitches (9, 10) installed on a switch plate (7) in the stopping device assembly are used for judging to clamp or loosen the hose; and the judgment result is used as the reference for stopping the motor. The electric pinch valve is applicable to biological artificial livers, blood cleansing machines, peritoneal dialysis machines and other medical facilities.

The invention provides a self-positioning grinding tool for an aluminum profile of a rail vehicle, including a positioning platform, a supporting platform and a clamping platform used in conjunction; The first positioning device and the second positioning device on the device; the first positioning device includes a first self-positioning seat; the second positioning device includes a second self-positioning seat and a clamping device installed on the side of the second self-positioning seat, The second self-positioning seat is inserted into the first self-positioning seat; the supporting platform is installed on the bottom of the aluminum profile of the rail vehicle; the clamping platform is installed on the bottom of the aluminum profile of the rail vehicle, on one side of the clamping platform There is a clamping device for clamping the aluminum profile of the vehicle.

The invention relates to an instrument panel, in particular to an instrument panel positioning clamp and belongs to the technical field of instrument panels. The instrument panel comprises a fixed center, a fixed center supporting base, an adjustable center, an adjustable center supporting base and a base, wherein the fixed center supporting base and the adjustable center supporting base are fixed at the left end and the right end of the base respectively; the upper end of the fixed center supporting base is connected with the fixed center through a bolt; the upper end of the adjustable center supporting base is connected with the adjustable center through a bolt. The axial positioning clamp which can be used for instrument panels with different dimensions has appropriate clamping force and is convenient and quick to adjust, the work efficiency is improved, the fixed center can be braked through an adjustment bolt, the braking force is adjusted through the adjustment bolt conveniently and quickly, and braking requirements of different workpieces can be met.