30results about How to "Precise clamping force" patented technology

A holder is designed to receive a cutting insert intended for parting and grooving operations. The insert is clampable in a seat formed between a blade tongue and a clamping finger which respectively extend from lower and upper front parts of the holder. A gap separates those front parts in order to enable those parts to be forced towards each other by means of a clamping mechanism mounted in the holder. The clamping mechanism comprises a drawbar, a first end portion of which is movable within a bore formed in one of the front parts, and a second end portion of which is fixed in the other front part. The first end portion of the drawbar includes a head having a frusto-conical abutment surface. A tightening screw is threadedly mounted in the same front part as the head and is arranged to contact the abutment surface to displace the drawbar in a direction forcing the clamping finger and the tongue together to clamp the cutting insert in place.

A device for generating a massage stream in a sanitary tub has an accommodation device that can be attached to an opening in the tub body of the sanitary tub, for accommodating an electric motor having a drive shaft, a propeller having a hub attached to the drive shaft and vanes arranged radially about the hub. There is a rosette arranged on the accommodation device, positioned within the sanitary tub, having edge-side inflow openings, as well as a central outlet opening. The propeller draws water located in the sanitary tub in through the inflow openings, and subsequently transports it back into the sanitary tub, through a guide element arranged in the outlet opening, which can be pivoted relative to the hub axis. The guide element is configured as a guide vane ring and has a ring-shaped bearing shell at the outer end of the guide vanes. The shell moves between a glide surface of the accommodation device that is configured as a sphere surface segment, and a concave contact surface of the rosette.

The invention discloses a metal belt-type stepless transmission target clamping force calculation method based on reserved clamping force. The method comprises the steps that according to formulas, the minimum target clamping force F<pri> of a driving belt wheel and the minimum target clamping force F<sec> of a driven belt wheel are calculated; and then according to the current target speed ratioand the corresponding clamping force ratio, the driven belt wheel target clamping force F<sec_KPKS> corresponding to the driving belt wheel and the driving belt wheel target clamping force F<pri_KPKS>corresponding to the driven belt wheel are calculated.

The invention discloses a large-size round timber processing facility for agriculture and forestry, and relates to the technical field of wood processing. The large-size round timber processing facility for the agriculture and forestry comprises a base, a machine frame, a power assembly, a lifting platform and a locating mechanism. The machine frame and the locating mechanism are installed at thetwo ends of the base correspondingly. The power assembly is installed on the machine frame, cooperates with the locating mechanism and drives a piece of round timber to rotate around the axis of the power assembly. The lifting platform is installed between the machine frame and the locating mechanism and used for achieving feeding and discharging operation of the round timber. By the adoption of the large-size round timber processing facility for the agriculture and forestry, the surface processing treatment work of the large-size round timber is achieved, namely, a driving motor drives the round timber to rotate, the locating mechanism cooperates with a driving disc to achieve the axial locating of the round timber, the clamping and locating operation of one end of the round timber is achieved in the mode that a supporting frame is fixed, and an inner sleeve moves, the process can be achieved under the condition that only the hydraulic oil needs to be fed into the facility, the locating process is simplified, the manpower is saved, the clamping force is more accurate, and the effect of avoiding the round timber rotation situation which happens due to the fact that the torque is excessively high is also achieved.

A holder is designed to receive a cutting insert intended for parting and grooving operations. The insert is clampable in a seat formed between a blade tongue and a clamping finger which respectively extend from lower and upper front parts of the holder. A gap separates those front parts in order to enable those parts to be forced towards each other by means of a clamping mechanism mounted in the holder. The clamping mechanism comprises a drawbar, a first end portion of which is movable within a bore formed in one of the front parts, and a second end portion of which is fixed in the other front part. The first end portion of the drawbar includes a head having a frusto-conical abutment surface. A tightening screw is threadedly mounted in the same front part as the head and is arranged to contact the abutment surface to displace the drawbar in a direction forcing the clamping finger and the tongue together to clamp the cutting insert in place.

The invention relates to a bearing unit, preferably, a wheel bearing unit (1) for a motor vehicle, comprising a hub (2) provided with a wheel-sided securing flange (11), whereon an angular contact anti-friction bearing (6), which comprises at least one inner ring (7) and an outer ring (8), is arranged. In order to produce the bearing unit (1) and to operate it in an economical manner, and also to prevent, for example, deformation and tensions characteristic of known roller riveting units, the securing flange (3) is connected in a material fit to the flange ring (11) in relation to the end (10) of the hub (2), which clamps at least the inner ring (7) to the hub (2).; The invention also relates to a method for producing a bearing unit (1), preferably, a wheel bearing unit for a motor vehicle, comprising a hub (2) which is provided with a wheel-sided securing flange (3) whereon an angular contact anti-friction bearing (6) comprising at least one inner ring (7) and an outer ring (8), is arranged, by means of a device (13) which exerts a clamping force (F) on the bearing unit (1).

The invention relates to an engine cylinder head overturning device, which includes a mounting frame, and two opposite clamping mechanisms that can precisely control the length for clamping the engine cylinder head are slidingly arranged inside the mounting frame. The side of the clamping mechanism is provided with an overturning mechanism for rotating the clamping mechanism, which can precisely control the overturning angle. The present invention installs a worm at the front end of the first motor, drives the main rod to move through the rotation of the worm, realizes the precise control of the moving length of the main rod, makes the clamping force of the main rod to the engine cylinder head more accurate, and avoids the Too much or too little movement of the main rod will cause unnecessary damage to the engine cylinder head and insufficient clamping force. The present invention also sets two sets of gear sets with different numbers of teeth, and realizes the fineness of different rotation angles through different gears. The control is used to deal with processing devices in different directions and different needs, so as to facilitate the repair and processing of corresponding processing devices.

The invention discloses a metal belt-type stepless transmission target clamping force calculation method based on reserved clamping force. The method comprises the steps that according to formulas, the minimum target clamping force F<pri> of a driving belt wheel and the minimum target clamping force F<sec> of a driven belt wheel are calculated; and then according to the current target speed ratioand the corresponding clamping force ratio, the driven belt wheel target clamping force F<sec_KPKS> corresponding to the driving belt wheel and the driving belt wheel target clamping force F<pri_KPKS>corresponding to the driven belt wheel are calculated.

The invention discloses a transplanter for greenhouse vegetable seedlings. The transplanter comprises a mechanical arm (1), a mechanical hand (2) and an automatic feeding system; the automatic feeding system comprises a seedling conveying device (3), a steering device (4), an empty tray recovering device (5), a seedling receiving device (6) and a protective pedal (7), wherein the seedling conveying device (3) is connected with the empty tray recovering device (5) through the steering device (4), the mechanical arm (1) is arranged above the seedling conveying device (3), the mechanical hand (2) is installed on the mechanical arm (1), the seedling receiving device (6) is arranged below the seedling conveying device (3), and the protective pedal (7) is arranged above the seedling receiving device (6). The greenhouse vegetable seedlings can be automatically transplanted through the transplanter, the transplanter is used for automatically conveying and receiving the seedlings, collecting seedling trays and conveying planting floating plates in the transplanting process of the greenhouse vegetable seedlings, the transplanting operation is not limited by manual seedling feeding speed and intensity any more, and the production efficiency of greenhouse vegetables is substantially improved.

The invention discloses a system for automatically regulating the clamping force of a motor-driven injection molding machine. The system is characterized in that four draw bars penetrate through a static template, a movable template and a rear template, and the static template is fixed on the draw bar; a five-point toggle mechanism is connected between the movable template and the rear template, and the crosshead thereof penetrates through the rear template and is sleeved outside a ball screw; the ball screw is driven by a spotting motor; the rear template is connected with the four draw bars through four regulating nuts; a bearing is arranged between each regulating nut and the rear template; the peripheries of the regulating nuts are provided with gear teeth; a rack wheel is arranged at the neutral position of the four regulating nuts and is meshed with the gear teeth of the four regulating nuts; the crosshead of the five-point toggle mechanism and the ball screw pass through the center of the rack wheel; the output gear of a mold-adjustment motor is meshed with the rack wheel; and the mold-adjustment motor is connected with an injection molding machine control system. The invention also aims at providing a method for automatically regulating the clamping force of a motor-driven injection molding machine. The invention has the advantages that the mold-adjustment accuracy is high.

The invention provides a clamping device for off-line detection of a motor gearbox of a new energy automobile, and relates to the technical field of off-line detection of motor gearboxes. The clamping device for off-line detection of the motor gearbox of the new energy automobile comprises a mounting plate, and a fixed clamping plate and a movable clamping plate which are arranged in a matched mode are arranged above the mounting plate; the fixed clamping plate is fixedly connected with the upper surface of the mounting plate, and the movable clamping plate is slidably connected with the upper surface of the mounting plate; the opposite faces of the fixed clamping plate and the movable clamping plate are fixedly connected with an output shaft positioning sleeve used for positioning an output shaft of the gearbox, and the opposite faces of the fixed clamping plate and the movable clamping plate are rotationally connected with a rotating ring through a plane bearing. And the opposite surfaces of the movable clamping plate and the fixed clamping plate are rotationally connected with a mounting disc which is concentric with the rotating ring. The clamping device for off-line detection of the motor gearbox of the new energy automobile has the advantage of being small in use limitation.

The invention discloses a positioning mechanism for processing large-size logs used in agriculture and forestry, which relates to the technical field of wood processing and includes a support bracket, an outer sleeve, an inner sleeve, a liquid inlet pipe, a piston, a thimble and a driving mechanism. The support bracket is fixed, and the inner sleeve moves to realize the clamping and positioning of one end of the log. Compared with the traditional tailstock positioning method, there is no need to manually shake the handle to realize the movement of the tailstock, only need to pass in hydraulic oil It can be realized, which simplifies the positioning process and saves manpower. At the same time, the top plate first contacts the log, then locks it with the thimble, and finally pressurizes until the pressure reaches the set value to realize the clamping and positioning of the log. The clamping force is more precise, and it also prevents the log from turning due to excessive torque.

The invention discloses a specimen holder of a tube or a bar for a tension test. The specimen holder comprises a tension handle, a locking part, a holding seat and a holder body, wherein the holder body comprises a cylinder body and a circular truncated cone body which are integrally formed; the maximum external diameter of the circular truncated cone body is greater than the external diameter of the cylinder body; the whole circular truncated cone body is provided with at least two grooves along the axial direction, and the two grooves are used for segmenting the circular truncated cone body into holding blocks; a holding part for holding a test specimen is arranged on the inner surface of each clamping block; the holding seat sleeves the outside of the holder body and is connected with the holder body in a matching way; the holding seat is provided with a first conical surface matched with the circular truncated cone body; the front end of the locking part is connected with the holding seat through a spiral structure; the tension handle is connected with the rear end of the locking part. The specimen holder disclosed by the invention is small in size, convenient in disassembly and assembly and uniform and reliable in holding force; the specimen holder realizes automatic centering in a clamping process, is uniform, quick and reliable in clamping, and is particularly suitable for being used in a high-low temperature environmental cabinet with compact structure and small space.

The invention relates to a combination drive type mould clamping mechanism of an all-electric injection molding machine, belonging to the field of mould clamping mechanisms of injection molding machines. The combination drive type mould clamping mechanism of the all-electric injection molding machine comprises mould adjusting nuts, a conventional motor, a support plate, a pull rod, a toggle mechanism, a dynamic mould plate, a mould, a fixed mould plate, a supporting angle, a hinge sleeve, a servo motor, an externally synchronous belt, a threaded screw rod, a threaded crosshead and an internally synchronous belt. The combination drive type mould clamping mechanism is designed by adopting a combination drive principle, and a power source of the combination drive type mould clamping mechanism is the servo motor and the conventional motor; the combination drive type mould clamping mechanism combines input motions generated by the servo motor and the conventional motor through a two-degree of freedom toggle mechanism and then generates programmable output motions; the system combines the advantages of the traditional mechanical system and a full-server electromechanical system, can realize the flexibility of the output motion and has high carrying capacity, fast operation and low cost.

The invention relates to the field of automatic control of weighing sensor production, in particular to a pneumatic clamp device with sensor control. A pneumatic clamping device with sensor control, comprising a lower base plate and an upper base plate, the lower base plate and the upper base plate are connected by a column, an air cylinder is installed on the upper base plate, and the piston rod of the air cylinder passes through the A top plate is connected behind the upper bottom plate, a sensor for measuring the clamping force of the clamped object is arranged on the lower bottom plate, and a pressure plate for placing the clamped object is arranged on the sensor. The invention has high production efficiency and low cost, and is beneficial to mass production of sensors.

The invention discloses a large-size round log processing equipment for agriculture and forestry, which relates to the technical field of wood processing and includes a base, a frame, a power assembly, a lifting platform and a positioning mechanism, and the frame and the positioning mechanism are respectively installed at both ends of the base , the power assembly is installed on the frame, the power assembly cooperates with the positioning mechanism and drives the log to rotate around its axis, the lifting platform is installed between the frame and the positioning mechanism and is used to realize the loading and unloading of the log, The invention realizes the surface processing of large-size logs, that is, the drive motor drives the logs to rotate, the positioning mechanism cooperates with the drive plate to realize the axial positioning of the logs, and the bracket is fixed and the inner sleeve moves. The method realizes the clamping and positioning of one end of the log, which can be realized only by feeding hydraulic oil, which simplifies the positioning process, saves manpower, and the clamping force is more accurate. At the same time, it also prevents the rotation of the log due to excessive torque. .