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Hiwin Technologies Corp patents


Recent patent applications related to Hiwin Technologies Corp. Hiwin Technologies Corp is listed as an Agent/Assignee. Note: Hiwin Technologies Corp may have other listings under different names/spellings. We're not affiliated with Hiwin Technologies Corp, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "H" | Hiwin Technologies Corp-related inventors


Double-nut cooling ball screw

A double-nut cooling ball screw includes two nuts threadedly engaging with a threaded shaft and having connecting end portions facing toward each other and cooling channel assemblies in fluid communication through coupling holes in the connecting end portions, and a spacer interposed between the connecting end portions and having notched recesses for accommodating guiding assemblies. Each guiding assembly is rotatable relative to the nuts between a non-stored position for facilitating fastening thereof, and a stored position to be concealed between the nuts.. ... Hiwin Technologies Corp

Mechanical end-effector changer and method of using same

A mechanical end-effector changer includes a first connection unit and a second connection unit. The first connection unit has mounted therein multiple movable members and mating elastic members. ... Hiwin Technologies Corp

Headstock assembly for machine tool

A headstock assembly for a machine tool includes a mount having a female threaded bore, a headstock mounted slidably relative to the machine base, a drive member mounted on the headstock, a spindle, and a spindle extension. The spindle has an intermediate segment disposed in a chamber of the headstock and coupled to be driven by the drive member so as to permit the spindle to rotate about a spindle axis. ... Hiwin Technologies Corp

Ball screw with a support device

A ball screw with a support device includes: a screw; a nut unit movably mounted on the screw; a support device including: a first support seat and a second support seat which are movably mounted on the screw and located at two sides of the nut unit; and a speed control device capable of presetting a speed of the nut unit and the first and second support seats, wherein the speed of the nut unit is vnt, the speed of the first and second support seats is vsup, and they satisfy the relation: 0<vsup/vnt<½. When the two ends of the screw are used as a fixing end and a support end, respectively, the ball screw can have an optimized critical rotation speed, which consequently improves the work efficiency of the ball screw.. ... Hiwin Technologies Corp

Dustproof device for ball screw

A dustproof device is provided for use with a ball screw which includes a screw rod and a nut mounted around the screw rod. The dustproof device includes an annular body and an elastic valve plate. ... Hiwin Technologies Corp

In-prosthesis linear drive system

An in-prosthesis linear drive system includes a holder frame, a power drive mounted on the holder frame, a screw nut mounted on the holder frame and coupled to the power drive and rotatable on the axis thereof by the power drive, a screw rod limiter including a center sliding guide rail mounted on the holder frame and a center sliding block slidable along the center sliding guide rail, and a screw rod threaded into the screw nut and connected with the center sliding block of the screw rod limiter and movable along the axial direction of the screw nut upon rotation of the screw nut. Thus, using the screw nut to drive the screw rod achieves the effect of minimizing the occupation of the prosthesis internal space.. ... Hiwin Technologies Corp

Lubrication detection method for linear motion system

A lubrication detection method includes a first step is a lubricator provides an information to a processor, a second step is to detect temperature information within a predetermined time period and then to create a temperature curve and then to determine whether or not the recess in the temperature curve faces upward, and a third step of detecting a start point temperature value to form value a, and averaging temperature values within ⅓ time period in front of the lowest point to form value b, and average temperature values after ⅔ time period in back of the lowest point to form value c, and determining whether or not value b is smaller than value a, and then determining whether or not value b is smaller than value c, and then generating an information of “normal” indicative of normal lubrication.. . ... Hiwin Technologies Corp

Gripping system which is monitored based on counter electromotive force and a method for controlling the gripping system

A gripping system which is monitored based on cemf and a method for controlling the same includes: using a controller to instruct a drive unit to rotate a stepper motor; using the controller to compare the control instruction with a control parameter matrix stored in an access unit; obtaining a cemf threshold by checking the position of the actual cemf in the control parameter matrix; using the controller to continuously monitor the actual cemf; and using the controller to compare the actual counter electromotive force with the obtained corresponding counter electromotive force threshold, stopping the stepper motor and letting the gripper maintain the gripping status when the actual counter electromotive force is smaller than or equal to the counter electromotive force threshold, and maintaining driving of the stepper motor when the actual counter electromotive force is larger than the counter electromotive force threshold.. . ... Hiwin Technologies Corp

Method of making strain wave gearing

A method of making a strain wave includes the steps of a) providing a circular spline, a flexspline meshed with the circular spline, and an initial wave generator having an initial outer profile of a standard ellipse with a perimeter s0, and b) producing a modified wave generator rotatably fitted within the flexspline and having a modified outer profile with a perimeter s. A difference es between the perimeter s of the modified outer profile and the perimeter s0 of the initial outer profile satisfies the equation es=s−s0=0.1 m to 0.8 m, wherein m is the modulus of the flexspline. ... Hiwin Technologies Corp

Lower limb spasticity measurement method

A lower limb spasticity measurement method includes the step of setting the lower limbs of the person in a lower limb orthotic device of a gait activity machine, the step of starting up a motor of the gait activity machine to drive the lower limb orthotic device for lower limb activity, the step of getting a statistical distribution data from the output torque of the motor within a predetermined time and then calculating the statistical distribution data to obtain a threshold, and the step of determining whether the output torque of the motor is greater than the threshold or not, and then stopping motor if the output torque of the motor is greater than the threshold. Thus, the method of the invention can accurately measures spasticity in the lower limbs of a person without the use of sensors, effectively saving the cost of equipment.. ... Hiwin Technologies Corp

Linear transmission device with lubrication unit

A linear transmission device includes a shaft, a moving member movably provided on the shaft, and a lubrication unit provided at the moving member. The lubrication unit has a lubricant container and a block. ... Hiwin Technologies Corp

Linear guide with lubrication device

A linear guide with lubrication device includes: a elongate rail; a slide module slidably mounted on the elongate rail and including a slide block and two recirculation members, which are respectively mounted to two end faces of the slide block and include a plurality of recirculation passages, in which at least one of the recirculation members includes a lubricant reservoir and a fixing through hole formed therein such that the lubricant reservoir, the recirculation passage, and the fixing through hole are in communication with each other and the lubricant reservoir receives lubricant filled therein; an application member received in the fixing through hole; a transferring member covering the application member and the transferring member absorbing and transferring lubricant to the application member. Rolling bodies, when moving through the recirculation passage, may contact the application member to have lubricant applied thereto.. ... Hiwin Technologies Corp

Threadless linear guide

A threadless linear guide includes a rail, a slide block, a recirculation assembly, and a fixing member. The slide block, the recirculation assembly, and the fixing member are positionable with respect to each other through retention engagements therebetween so that the components can be coupled to each other without screws. ... Hiwin Technologies Corp

Method for determining timing of oil filling for a ball screw

A method for determining timing of oil filling for a ball screw can determine whether the oil film in a specific time period is sufficient, falling or insufficient, and then know the optimum timing of oil filling, by comparing the sum of the slope values within respective time periods with a predetermined value. The method is further capable of determining the timing of oil filling even when the rotation speed of the ball screw changes. ... Hiwin Technologies Corp

10/12/17 / #20170292900

Method of detecting preload of linear guide

A method of detecting a preload of a linear guide includes: applying an external force to the linear guide with an external force applying device, wherein the external force applying device sends an impact signal while applying the external force; sensing with a sensor a vibration signal sent from the linear guide because of vibration thereof which occurs under the external force; and receiving the impact signal of the external force applying device and the vibration signal of the sensor and calculating the preload of the linear guide according to a received result, with a signal analyzer. Therefore, with the method of the present invention, the preload of the linear guide is precisely tested regardless of environmental factors.. ... Hiwin Technologies Corp

09/21/17 / #20170268644

Dustproof device for ball screw

A dustproof device is provided for use with a ball screw which includes a screw rod and a nut mounted around the screw rod. The dustproof device includes an annular body and an elastic valve plate. ... Hiwin Technologies Corp

09/14/17 / #20170261529

Method for identifying friction parameter for linear module

A method for identifying friction parameters for a linear module is disclosed. Since an acting interval of a friction is determined by a relative velocity between two contacting surfaces, and when the relative velocity is much greater than a stribeck velocity, there is only a coulomb friction and a viscous friction exist between the contacting surfaces, it is possible to use a measured torque signal of this interval to identify a coulomb friction torque, a the linear module's friction torque, and the linear module's equivalent inertia. ... Hiwin Technologies Corp

09/14/17 / #20170259429

Driver device for electric gripper and driving method thereof

A driving method used in a driver device for driving an electric gripper is disclosed to include the step of providing a state signal that is generated according to the operation state of the electric gripper, the step of receiving an action instruction and detecting a feedback signal indicative of the action of the electric gripper when the state signal is an idle state, and the step of outputting the action instruction if the action of the electric gripper indicative of the action instruction is not in consistency with the action of the electric gripper indicative of the feedback signal. Thus, the driving method of the present invention needs not to provide a trigger signal for commanding the electric gripper to execute the action instruction.. ... Hiwin Technologies Corp

09/14/17 / #20170258548

Telescoping control mechanism for controlling a medical instrument

A telescoping control mechanism for controlling a medical instrument, the medical instrument includes a telescoping axis which intersects a patient at a work point, the telescoping control mechanism includes: a first rotary module disposed on a base, and including a first axis which extends through the work point; a second rotary module disposed on the base and including a second pivot which is pivoted to the base and has a second axis perpendicular to the first axis; a linkage module including a proximal linkage assembly disposed on the second pivot and parallel to the telescoping axis, and a distal linkage assembly for mounting of the medical instrument; and a telescoping module disposed on the proximal linkage assembly to drive the distal linkage assembly to reciprocate along the proximal linkage assembly, which consequently causes movements of the medical instrument along the telescoping axis.. . ... Hiwin Technologies Corp

09/07/17 / #20170254395

Shaft circulation ball screw

A shaft circulation ball screw includes: a screw, a nut, a circulation member, and two fixing rings. The screw is provided with a stop portion for the two ends of the circulation member to rest against, a distance from the stop portion to a central axis of the screw is defined as a first height h, a distance from a highest point of the rolling elements which are located in the return passage to the central axis of the screw is defined as a second height hmax, and hmax satisfies the following relation: hmax−0.5×bd≦h≦hmax.. ... Hiwin Technologies Corp

09/07/17 / #20170252927

Method of path planning for array-based pick-and-place performed with robotic arm and compensator for use with the method

A method of path planning for array-based pick-and-place performed with a robotic arm is characterized in that: during each instance of the pick-and-place process performed with the robotic arm, an x-axis position sensor and a y-axis position sensor sense coordinate errors of a pick-and-place point such that a controller calculates a position compensation value according to the sum of vectors of the coordinate errors, corrects the pick-and-place position of the robotic arm according to the position compensation value, and generates the coordinates of the next pick-and-place point. By repeating the aforesaid process flow, it is feasible to perform plenty array-based pick-and-place jobs.. ... Hiwin Technologies Corp

08/24/17 / #20170241845

Sensor assembly

A sensor assembly includes: a base with an installation space; an electrical connection member disposed on the base; a sensing unit including at least two physical sensors and one integrated circuit board; and a contact member disposed at one end of the base. The sensor assembly is a combination of the temperature sensor and the vibration sensor, the main physical parameters (including back clearance, collision, thermal displacement and lubrication) regarding the operation of the linear motion transmission device can be calculated based on the temperature signal and vibration signals, without requiring the installation of separate different sensors. ... Hiwin Technologies Corp

08/17/17 / #20170233192

Belt driven linear actuator

A belt driven linear actuator includes: a base, a linearly movable unit, a belt driven unit, a first cover, a second cover, a drive source, and a slide block. With the first and second covers removably disposed on the base, the first and second covers can be located at different positions to define different gaps in different directions, so as to allow the slide block to be assembled in different directions, and reduce the restriction on the assembling direction of the drive source. ... Hiwin Technologies Corp

08/17/17 / #20170232610

Gripping device which is monitored based on counter electromotive force and a method for controlling the gripping device

A gripping device monitored based on cemf and a method for controlling the same includes: using a controller to instruct a drive unit to rotate a stepper motor; using the controller to compare the control instruction with a control parameter matrix stored in an access unit; obtaining a cemf threshold by checking the position of the actual cemf in the control parameter matrix; using the controller to monitor the actual cemf; and using the controller to compare the actual cemf with the threshold, maintaining driving of the stepper motor when the actual cemf is larger than the threshold, and stopping the stepper motor to maintain the gripping status, when the actual cemf is smaller than or equal to the threshold. The operation parameters are measured in advance when the stepper motor runs well, which ensures that the objected is stably gripped before abnormality occurs, thus stabilizing the gripping motion.. ... Hiwin Technologies Corp

06/29/17 / #20170184145

Rotation drive device

A rotation drive device includes a crankshaft which has two ends dynamically connected to a drive source and a driven device, respectively. The drive source drives the crankshaft to rotate the driven device. ... Hiwin Technologies Corp

06/29/17 / #20170182662

Robot safety guard system

A robot safety guard system for installation in the ground around a robot with an operating range is disclosed to include a plurality of sensor modules mounted on the ground beyond the operating range of the robot. Each sensor module includes 2 first sensors each providing a first sensing range. ... Hiwin Technologies Corp

06/15/17 / #20170167584

Offset preload ball screw with expandable loading area

An offset preload ball screw with expandable loading area includes: a screw, a nut, and a plurality of balls between the screw and the nut. The inner helical groove of the nut includes at least a first section, a second section and a third section which are continuously connected one another. ... Hiwin Technologies Corp

05/04/17 / #20170120456

Spherical linkage type surgical robotic arm

In order to reduce the calculation in robotic arm allocation, the invention provides a spherical linkage type surgical robotic arm, which includes a first curved bar having a first axis center and a second axis center, a second curved bar being equal to the first curved bar in length and having a third axis center and a fourth axis center, the third axis center in coincidence with the first axis center, a third curved bar having a fifth axis center and a sixth axis center and being pivoted to the second curved bar, and a fourth curved bar having a seventh axis center and an eighth axis center and being pivoted to the third curved bar and the first curved bar, thereby reducing the calculation burden and facilitating control and allocation.. . ... Hiwin Technologies Corp

04/06/17 / #20170097082

Harmonic drive featuring helix-facilitated lubrication

A harmonic drive featuring helix-facilitated lubrication includes a circular spline, a flexspline, a wave generator, and an agitating member. The flexspline meshes with the circular spline. ... Hiwin Technologies Corp

02/23/17 / #20170051820

Lubricated harmonic drive

A harmonic drive includes a circular spline, a cup-shaped flex spline meshed with the circular spline, a wave generator including an bearing mounted in the cup-shaped flex spline, an elliptical wheel mounted in the bearing and a coupling connected to the elliptical wheel so that an oil storage chamber is defined between the wave generator and the cup-shaped flex spline, and one or multiple stirrers connected to the coupling of the wave generator and drivable by the coupling to carry the storage lubricating oil out of the oil storage chamber for lubricating the bearing of the wave generator and the meshed tooth surfaces between the circular spline and the cup-shaped flex spline.. . ... Hiwin Technologies Corp

02/02/17 / #20170030602

Cooling method for multi-axis controller

A cooling method for multi-axis controller includes a first step of enabling a first temperature sensor and a second temperature sensor to respectively detect the temperature of a first heat source and the temperature of a second heat source and to send the respective detected data to a control unit, and a second step of enabling the control unit to drive a first bi-direction fan to exhaust air if the temperature of the first heat source surpasses a predetermined upper temperature limit or to drive a second bi-directional fan to exhaust air if the temperature of the second heat source surpasses the predetermined upper temperature limit, thereby achieving enhanced cooling efficiency.. . ... Hiwin Technologies Corp

01/26/17 / #20170021431

Mechanical end-effector changer and method of using same

A mechanical end-effector changer includes a first connection unit and a second connection unit. The first connection unit has mounted therein multiple movable members and mating elastic members. ... Hiwin Technologies Corp

01/12/17 / #20170007489

Lower limb rehabilitation method and apparatus using the method

A lower limb rehabilitation method for rehabilitation of the lower limbs of a user includes the step of putting a exoskeleton on the lower limbs of the user, the step of setting a trigger condition, the step of using emg muscle sensors to detect emg signals from specific muscles of the user when the user is performing specific actions, the step of judging whether the sensing result meets the trigger condition, and the step of re-setting the triggering condition without moving the exoskeleton if the sensing result does not meet the trigger condition, or, the step of triggering a motion generator to provide a control signal to a control unit for controlling the exoskeleton in moving the lower limbs of the user to perform specific actions if the sensing result meets the trigger condition.. . ... Hiwin Technologies Corp

01/12/17 / #20170007218

Multidirectional foot controller

A multidirectional foot controller includes a base, a movable platform, a rotatable platform, and two pedals successively stacked and assembled together. The multidirectional foot controller is activated by having the two pedals depressed simultaneously, and then controls an externally connected endoscope to move forward or backward by means of a movable platform, or controls the endoscope to move leftward or rightward by means of a rotatable platform. ... Hiwin Technologies Corp








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