Abstract: A device and a method for testing the rigidity and non-linear relationship of the coupling interface for cylindrical fitting including an axial loading assembly which is provided along a horizontal central line within a side wall of a frame test bench and contacting with the test-piece shaft via a steel ball, a radial loading assembly downward provided along a vertical central line of top board of the frame test bench, a tip of a perpendicular loading part of the radial loading assembly extending into the outer housing of the test-piece housing fixed on an upper plane of a bottom wall of the frame test bench, with the test-piece shaft and the test-piece housing fitted and connected to each other via a coupling interface for cylindrical fitting; a plurality of displacement sensors fixed on the test-piece housing, and test heads of respective displacement sensor assembly aiming at the test-piece shaft.

Abstract: The present invention discloses a device for detecting axis coplanarity of orthogonal rotary shafts having a built-in intersection, wherein a front assembly rotary body is coaxially connected on a front assembly housing, the front assembly rotary body and a rear assembly housing are fixedly connected with each other, the rear assembly rotary body is mounted in the rear assembly housing, a first three dimension movement fine tuning mechanism is mounted at an end of the rear assembly rotary body, the first three dimension movement fine tuning mechanism is connected with a standard sphere through a connecting rod, the three dimension movement fine tuning mechanisms are provided in the horizontal direction of the standard sphere and below the standard sphere in vertical direction, and two non-contact displacement sensors are mounted on said two three dimension movement fine tuning mechanisms respectively.

Abstract: A guide rail precision rotation apparatus is provided with a housing of torque motor and a bearing housing fixedly arranged on an upper surface of a base, and a bearing sleeved on an inner edge step at the upper end of bearing housing. The inner ring of bearing is sleevingly connected to an intermediate rotating body, the lower end of the body is connected to a bearing inner ring cap; a round grating is provided at an outer edge of lower end of the cap, a connecting piece is arranged on the motor, the lower end of connecting piece is fixedly connected to a rotary shaft of the motor, the connecting piece and the body are both connected to the lower end of a fine movement mechanism, and the upper end face of fine movement mechanism is fixedly connected to a rotary worktable.

Abstract: A computer numerical control machine tool for grinding two sides of a plane by shifting self-rotation ultrasonic vibration, wherein a pillar (3) is provided on the tool body (1) of the machine tool, a Y axis movement assembly (12) is provided on the platform of the tool body (1), with a lower revolving movement assembly (11), which revolves about a Z coordinate axis, being mounted on the upper surface of the Y axis movement assembly (12), and a lower grinding plate (10) being mounted coaxially above the lower revolving movement assembly (11); an ultrasonic vibration assembly (2) is mounted fixedly on the pillar (3), with a separation plate (8) for clamping a workpiece assembly (9) being provided on the ultrasonic vibration assembly (2); an X axis movement assembly (4) is mounted on the upper part of the pillar (3), a Z axis movement assembly (5) is mounted on the upright face of the X axis movement assembly (4), with an upper revolving movement assembly (6), which revolves about the Z coordinate axis, being p

Abstract: A biaxial linear-motion micro drive apparatus includes: a mounting base A on an upper surface of a Z-direction sliding base; a Z-direction micro actuator fixed within the mounting base A and connected with a Z-direction micro-motion platform connected with an X-direction sliding base; Z-direction guide rail strips arranged on the Z-direction sliding; two Z-direction guide rail blocks provided on one Z-direction guide rail strip fixedly mounted on a lower surface of the X-direction sliding base; a mounting base B provided on an upper surface of the X-direction sliding base; an X-direction micro actuator in the mounting base B and connected with an X-direction micro-motion platform connected with an XZ biaxial motion platform; two X-direction guide rail strips arranged on the upper surface of the X-direction sliding base; two X-direction guide rail blocks provided on each X-direction guide rail strip mounted on a lower surface of the XZ biaxial motion platform.

Abstract: A device and a method for testing the rigidity and non-linear relationship of the coupling interface for cylindrical fitting including an axial loading assembly which is provided along a horizontal central line within a side wall of a frame test bench and contacting with the test-piece shaft via a steel ball, a radial loading assembly downward provided along a vertical central line of top board of the frame test bench, a tip of a perpendicular loading part of the radial loading assembly extending into the outer housing of the test-piece housing fixed on an upper plane of a bottom wall of the frame test bench, with the test-piece shaft and the test-piece housing fitted and connected to each other via a coupling interface for cylindrical fitting; a plurality of displacement sensors fixed on the test-piece housing, and test heads of respective displacement sensor assembly aiming at the test-piece shaft.

Abstract: Disclosed is an operating position changeable loading apparatus with multi-axis joint movement used on machining center. The apparatus consists of a load-receiving test piece and a load-exerting component. Moving the load-exerting component and the load-receiving test piece to a preset loading position according to a multi-axis joint movement, with the displacement value measured by displacement sensors and the amount of simulated load measured by a force sensor of the loaded-exerting component, a stiffness of the load-exertion position under a simulated load can be derived. Changing the load-exertion position, repeating in sequence the previous steps, a stiffness distribution under the simulated load can be derived.

Abstract: A macro-micro actuated distended guide rail precision rotation apparatus, having a housing of a torque motor and a bearing housing, both fixedly arranged on an upper surface of a base, and a bearing sleeved on the bearing housing. The inner ring of the bearing sleevingly connected to an intermediate rotating body connected to a bearing inner ring cap. A grating is provided at a lower end of the bearing inner ring cap. A connecting piece is arranged on the upper surface of the housing of the torque motor. The lower end of the connecting piece is fixedly connected to a rotary shaft of the torque motor. The connecting piece and the intermediate rotating body are both connected to the lower end of a fine movement mechanism fixedly connected to a rotary worktable. The rotation apparatus allows for highly precise macro-and-micro linked control, and for rotation control of great rotation range.

Abstract: A translocation-simulating loading apparatus for the gear grinding machine with the shaped grinding wheel is provided. The apparatus includes a load-receiving test piece disposed on the gear grinding machine with the shaped grinding wheel and a load-exerting component for use in loading simulation. The gear grinding machine enables linear movements along the X, Y, and Z axes, a rotary movement around the Y axis, a rotary movement C around the Z axis, and a rotary movement A around the X axis. An angle ? is formed between the axis L of a ball seat of the load-exerting component and the X axis direction of a Y axis component and an angle formed between the normal line of a load receiving face a and the X direction of the coordinate system of the machine tool is ?. A detection method for static stiffness distribution is provided.

Abstract: The present invention discloses a device for detecting axis coplanarity of orthogonal rotary shafts having a built-in intersection, wherein a front assembly rotary body is coaxially connected on a front assembly housing, the front assembly rotary body and a rear assembly housing are fixedly connected with each other, the rear assembly rotary body is mounted in the rear assembly housing, a first three dimension movement fine tuning mechanism is mounted at an end of the rear assembly rotary body, the first three dimension movement fine tuning mechanism is connected with a standard sphere through a connecting rod, the three dimension movement fine tuning mechanisms are provided in the horizontal direction of the standard sphere and below the standard sphere in vertical direction, and two non-contact displacement sensors are mounted on said two three dimension movement fine tuning mechanisms respectively.

Abstract: A laser liquid level detection device is provided with linear optical magnification of a curved minor. The device includes a laser device, a CCD detecting device having a curved mirror and a CCD sensor and signal processing devices disposed in the laser device and the CCD detecting device. The laser device emits a laser beam to a surface level of a liquid, which reflects the beam to the CCD detecting device, and the curved mirror directs the reflected beam onto the CCD sensor. The shape of the curved mirror is determined by a polynomial curve function so as to linearly magnify a change in a height of the surface when the bounced beam reaches the CCD sensor. The liquid level detection device enables the position of the surface level of the liquid to be detectable in real time with high accuracy.

Abstract: A biaxial linear-motion micro drive apparatus includes: a mounting base A on an upper surface of a Z-direction sliding base; a Z-direction micro actuator fixed within the mounting base A and connected with a Z-direction micro-motion platform connected with an X-direction sliding base; Z-direction guide rail strips arranged on the Z-direction sliding; two Z-direction guide rail blocks provided on one Z-direction guide rail strip fixedly mounted on a lower surface of the X-direction sliding base; a mounting base B provided on an upper surface of the X-direction sliding base; an X-direction micro actuator in the mounting base B and connected with an X-direction micro-motion platform connected with an XZ biaxial motion platform; two X-direction guide rail strips arranged on the upper surface of the X-direction sliding base; two X-direction guide rail blocks provided on each X-direction guide rail strip mounted on a lower surface of the XZ biaxial motion platform.

Abstract: A method of three-dimensional optimization design for an asymmetric cusp magnetic field in an MCZ single crystal furnace is disclosed. An optimization design for structural parameters of the magnetic field includes first establishing a three-dimensional magnetic model by using ANSYS software, varying parameters of the model, determining a span between upper and lower parts of coils, determining a number of transverse turns of the coils and the thickness of a shield. An optimization design for specification parameters of the coils of the magnetic field includes determining a relationship between heat and specification parameters of the coils and between heat transfer of the coils at their copper pipe walls and the specification parameters of the coils, analyzing heat absorbed by cooling water, establishing an optimization model of a system, and optimizing the specification parameters of the coils of the magnetic field using the ANSYS software.

Abstract: Disclosed is a processing center multi-axis joint deflection loading apparatus comprising a load-receiving test piece and a load-exerting component. The load-exerting component is constituted by a steel ball, a cap, a ball socket, a bent board, a force sensor, a connection component A, and a connection component B. The connection component A is fixedly connected to a blade handle of the processing center; the blade handle is pulled tight within a bored hole on a main axle; and the connection component A is connected to a main housing via the connection component B.

Abstract: The present invention discloses a method of three-dimensional optimization design for an asymmetric cusp magnetic field in an MCZ single crystal furnace. An optimization design for structural parameters of the magnetic field comprises first establishing a three-dimensional magnetic model by using an Ansys numerical analysis software; and varying parameters of the model, determining the span between the upper and lower parts of coils, the number of transverse turns of coils and the thickness of the shield based on a set magnetic induction intensity of the magnetic field, and determining the numbers of longitudinal layers of coils in the upper and lower parts of the magnetic field.

Abstract: The present invention discloses a laser liquid level detection device with linear optical magnification of a curved minor, wherein two openings are disposed at a top of a single crystal furnace symmetrically, a laser device and a CCD detecting device are respectively disposed on the two openings, and signal processing devices are pre-disposed within the laser device and the CCD detecting device. In the liquid surface height detection method using the device of the present invention, a model is first established to simulate the laser propagating path, a polynomial curve function of the curved mirror satisfying the requirement is calculated, the prepared curved minor is then disposed in the CCD detecting device, the change in the height of the liquid surface of molten silicon may be reflected on a CCD sensor, and therefore the actual change in the height of the liquid surface of molten silicon may be calculated.