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

System and method for automatically regulating clamping force of motor-driven injection molding machine

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.
Owner:SOUTH CHINA UNIV OF TECH

Transplanter for greenhouse vegetable seedlings

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.
Owner:WENZHOU UNIVERSITY +1

Clamping device

A clamping device includes a first clamping arm and a second clamping arm, an arm driving portion for displacing the first clamping arm to a clamping position and a non-clamping position, and a clamping force applying portion for applying a required clamping force to the clamping arm. The arm driving portion has a first driving source for displacing the first clamping arm and a power transmission mechanism. The clamping force applying portion has a pressing member for applying the clamping force to the first clamping arm by applying a rotating force in a clamping direction to the rotary shaft and a second driving source for displacing the pressing member from a non-operating position to an operating position for applying the clamping force.
Owner:SMC CORP

Large-size round timber processing facility for agriculture and forestry

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.
Owner:芜湖文青机械设备设计有限公司

Outer circle turning clamp of thin wall bearing ring

The invention relates to an outer circle turning clamp of a thin wall bearing ring. The outer circle turning clamp is characterized by comprising a disc-shaped clamp body, wherein the front end of the clamp body is provided with a positioning boss for positioning an inner hole of one end of the thin wall bearing ring, the front part of a positioning boss is provided with a slide guide part, a pressing ring glidingly sleeves the slide guide part, and is provided with an outer conical surface, an expansion ring sleeves the exterior of the pressing ring, and is provided with an inner conical hole which is matched with the outer conical surface of the pressing ring, at least two limiting screws penetrate through holes of the pressing ring and are connected with the clamp body, a plurality of bolt holes are respectively and uniformly formed in the clamp body and the pressing ring and are connected with a main shaft of a lathe, and a pressing gap is formed between the inner end surface of the pressing ring and the front end surface of the clamp body. The outer circle turning clamp has the advantages that the structure is simple, the clamping is convenient and rapid, the direction of clamping force is coincided with the positioning point of the bearing ring, the positioning is accurate, the clamping force is stable, the error of processing size is reduced, the turning qualified rate of the thin wall bearing ring is improved, the processing efficiency is improved, and the production cost is reduced.
Owner:JIANGYIN JIB WD PRECISION

Specimen holder of tube or bar for tension test

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.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS

Device for generating a massage stream in a sanitary tub

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.
Owner:FRANZ KALDEWEI

Clamping device and method for controlling clamping force on workpiece through linear motor

PendingCN113500621AHigh Precision Motion ControlImprove motor controlGripping headsElectric machineControl cell
The invention discloses a clamping device and method for controlling the clamping force on a workpiece through a linear motor. The clamping device comprises a base, the linear motor, a telescopic rod, a control unit, a transmission mechanism and a clamping jaw mechanism; the clamping jaw mechanism comprises friction force sensing jaws and mechanical clamping jaws, and friction force sensors are arranged on the contact faces of the friction force sensing jaws and the workpiece; the linear motor is connected with the telescopic rod; and the control unit sends an electric signal, the linear motor drives the telescopic rod to move, and then the transmission mechanism is driven to control opening and closing of the clamping jaw mechanism. According to the clamping device, the friction force sensing jaws are in contact with the workpiece, so that the friction force sensors sense vertical friction force generated when the workpiece is in contact with the friction force sensing jaws; and the friction force sensors process and judge the vertical friction force and feeds back the vertical friction force to a CPU, the CPU controls a driving signal of the linear motor and enables the clamping device to provide clamping force according to the friction force generated by relative sliding between the contact faces of the mechanical clamping jaws and the workpiece, and accurate control over the clamping force is achieved.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY

Novel tiebar on injection molding machine

The invention discloses a novel tiebar on an injection molding machine. The tiebar comprises tiebar bodies, limiting rings are fixed to the tops of the left ends of the tiebar bodies, permanent magnets are arranged at the left ends of the limiting rings, fixing grooves are formed in the bottoms of the ends, away from the limiting rings, of the tiebar bodies, the left end faces of the tiebar bodies are in threaded connection with fixing bolts, mold adjusting plates are arranged at the ends, close to the limiting rings, of the tiebar bodies, movable mold plates are arranged on the sides, away from the limiting rings, of the mold adjusting plates, fixed mold plates are arranged on one sides of the movable mold plates, fixing assemblies are arranged on the right sides of the fixed mold plates, positioning assemblies are arranged on the sides, close to the limiting rings, of the mold adjusting plates, the right end faces of the fixing bolts are provided with clamping grooves, and fixing and locking assemblies are arranged at the tops of the fixing bolts. According to the novel tiebar on the injection molding machine, by arranging the fixing and locking assemblies, the situation that the fixing bolts are loosened after long-time use can be prevented; and through positioning holes, a touch switch and an indicator lamp, whether the tie bar bodies are fixed to the mold adjusting plates or not can be strikingly displayed.
Owner:广东力劲塑机智造股份有限公司

A Greenhouse Vegetable Seedling Cultivation and Transplanting Machine

ActiveCN105409407BSuitable for transplantingIncrease productivityTransplantingGreenhouseEngineering
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.
Owner:WENZHOU UNIVERSITY +1

System and method for automatically regulating clamping force of motor-driven injection molding machine

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.
Owner:SOUTH CHINA UNIV OF TECH

Clamping device for off-line detection of motor gearbox of new energy automobile

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.
Owner:江苏惠博机电科技股份有限公司

A sample fixture for pipe or bar for tensile test

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.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS

Combination drive type mould clamping mechanism of all-electric injection molding machine

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.
Owner:BEIJING UNIV OF CHEM TECH +1

A large-size log processing equipment for agriculture and forestry

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. .
Owner:芜湖文青机械设备设计有限公司
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