Gear grinding machine capable of precisely machining semi-topping slotting cutter

A comprehensive visualization measuring instrument of multi-sensor shape and position errors comprises an X, Y and Z three-dimensional working platform, a centre, a handle, a lead screw, a sensor clamp base and a sensor clamping piece and is characterized in that the centre is vertically connected onto a guide rail of a Y-shaft platform of the X, Y and Z three-dimensional working platform, the handle is connected with the position right above the centre, a working platform is connected with a guide rail of an X-shaft platform of the X, Y and Z three-dimensional working platform, the sensor clamp base is connected onto the working platform through the lead screw to form a Z shaft, a lateral wall of the sensor clamp base is connected with a sensor clamp assembly through the sensor clamping piece, two inductance-type micrometer dials are connected onto the sensor clamp assembly, and the inductance-type micrometer dials are connected with a computer through a data collection card. The comprehensive visualization measuring instrument has the advantages of being high in efficiency, low in cost, friendly in interface, visual, easy to expand and convenient to operate.

Comprehensive visualization measuring instrument of multi-sensor shape and position errors

The invention discloses a side hole drilling machine material platform convenient to adjust The side hole drilling machine material platform comprises a platform body and a frame, and also comprises an angle adjusting part, a lifting part and an angle trimming part, wherein the angle adjusting part comprises an arc block, a compression bolt and an arc block seat; the upper end of the arc block is fixedly connected with the platform body; an arc groove is formed at the upper end of the arc block seat; an arc part consistent with the arc groove in radian is arranged at the lower end of the arc block and positioned inside the arc groove; the compression bolt is connected with the arc block seat via a thread; the arc block and the arc block seat are fixedly connected by pretightening force exerted between the arc block and the arc block seat through the compression bolt; the connection point of the lifting part and the angle adjusting part is arranged on the arc block seat; the angle trimming part comprises a threaded rod; the lower end of the threaded rod is connected with the frame via the thread; the upper end of the threaded rod contacts the platform body The side hole drilling machine material platform is simple in structure, convenient to adjust the inclination angle and the height of the platform body, and beneficial to drilling efficiency and accuracy of the inclined side hole

Side hole drilling machine material platform convenient to adjust

The invention relates to a method for measuring a plane secondary enveloping ring surface hobbing cutter, and belongs to the fields of the precision testing technology and instrument, the mechanical transmission technology and metal cutting tools According to the method, numerical models of various errors of the hobbing cutter are built based on the gear space meshing mechanism and a corresponding worm tooth surface equation according to the definitions of the various errors of the hobbing cutter, coordinate conversion is carried out on the numerical models, the numerical models are resolved into motions of three axes of a measuring machine, and a numerical value solving method is adopted for obtaining numerical solutions of three coordinates A computer conducts sampling route planning according to the numerical solution, the coordinate values are input into a numerical control system to control the motions of the three axes of the measuring machine, a data collecting system synchronously collects three-axis grating values and measuring head data, the collected data are processed, and the high-precision measurement on cutting edge spiral line errors, edge opening tooth shaped errors and scrap containing groove circular pitch errors of the plane secondary enveloping ring surface hobbing cutter is accordingly achieved

Method for measuring plane secondary enveloping ring surface hobbing cutter

The invention brings forward a measuring method of a contact type involute worm tooth profile. The axial section of an involute worm is non-linear, and, when the axial section of the involute worm is measured, the measurement section of the involute worm, i.e., a straight generatrix is located on a base cylinder tangent plane. An interference is generated because the axial distance between a tooth profile measurement start point and the highest (lowest) point of a tooth face on the other side of the same tooth slot is small, and then a measuring ball or a measuring rod interferes with the tooth face on the other side in the process that a measuring head enters the measurement start point; and a measuring needle is damaged, and tooth profile measurement cannot be completed. According to the measuring method, provided in the invention, of the contact type involute worm tooth profile, the tooth profile measurement is performed at a position of the axial section of the involute worm, a traditional base circle tangent plane position tooth profile measuring method is replaced, and an interference phenomenon can be effectively eliminated; the measuring method of the contact type involute worm tooth profile has the advantages of high measuring efficiency, the reliable result, simplified measuring actions and the simple implementation process; and the measuring method of the contact type involute worm tooth profile provides a new train of thought for the complex cutter measuring technology.

Measuring method of contact type involute worm tooth profile

The invention discloses a method for measuring the accuracy of a large helix angle worm hob. The conventional gear testing apparatus is adopted for measurement, and the method comprises the following steps of: arranging a worm hob to be measured on a detection spindle, adjusting the radius of a base circle rb, and adjusting the helix angle beta b of the gear testing apparatus to be equal to (90 degrees-lambda b); and adjusting an inductance probe to make the tip of the inductance probe attached to a volute of a base circle involute close to a tooth root of the hob, making the stress directionof the induction probe vertical to the direction of a helix of the hob, taking the point to which the tip of the induction probe is attached as an initial point of measuring a tooth profile of the hob, moving a helix angle upright post to make the tip of the inductance probe scrape a cutting edge of the hob from a tooth back, recording a value of a peak point and the peak point, moving a delta rho value on the volute of the base circle involute, measuring each peak point by using the same method until n points are measured, comparing all peaks, and taking a difference of the maximal peak and the minimal peak as an error of the tooth profile of the hob. The method has the advantages of convenience in implementation and low cost.

Method for measuring accuracy of large helix angle worm hob

The utility model discloses a hardness detection device for shaped pieces The hardness detection device comprises a lifting lead screw, a workbench device and a diamond pressure head, wherein the workbench device comprises a lower workbench, a roller and an upper workbench; the lower end of the lower workbench is fixedly connected with the upper end of the lifting lead screw; the upper end of the lower workbench is provided with a roller placing groove; the roller is placed in the roller placing groove horizontally and is fixedly connected with the lower end of the upper workbench; an axis of the roller is positioned under the diamond pressure head; the lateral surface of the upper workbench is provided with arc-shaped angle indexes; the end part of the roller is provided with a plumb pointer; and two angle regulating screws are arranged on the lower workbench and pass through the lower workbench and are pressed against the upper workbench When the hardness detection device is used, the upper workbench rotates around the axis of the roller to obtain required angles by regulating the angle, regulating screws and observing the plumb pointer and the angle indexes, so that the detected inclined planes of the shaped pieces are kept horizontal, and the hardness detection accuracy of the shaped pieces is ensured effectively; and the hardness detection device is easy to operate and high in detection efficiency

Hardness detection device for shaped pieces

The utility model discloses a fixing device for a platinum rhodium thermocouple inner magnetic tube The fixing device comprises a circular fixing plate and locking bolts, wherein a through hole is formed in the middle of the circular fixing plate; the locking blots penetrate through the fixing plate from outside to inside along radial direction; the fixing plate is made of stainless steel; screwed holes in threaded fit with the locking bolts are formed in the fixing plate The conventional ceramic fixing plate is replaced by the stainless steel fixing plate; the fixing plate is rustproof and difficult to be destroyed, and can be repeatedly used for a long time; simultaneously, the screwed holes in which the locking bolts can be screwed are directly machined in the stainless steel fixing plate; the inner magnetic tube is directly pressed tightly by the locking bolts, so that a positioning and locking clip and a copper clip sleeve are eliminated, the structure is simple, and the problem that the inner magnetic tube is fallen off caused by temperature change can be effectively solved

Fixing device for platinum rhodium thermocouple inner magnetic tube

Hardness testing device for special-shaped pieces

The utility model discloses a gear shaver retract hole machining device, which includes a drill bit device, an universal index head turntable device and a PLC, wherein the drill bit device includes a drill bit and a drill bit lifting control device for driving the drill bit to lift; the universal index head turntable device includes an index plate for placing the work piece, an index motor for driving the index plate to rotate, an index plate lifting drive device for driving the index plate to lift, and a locking mechanism for locking or loosening the index plate; and the PLC controls the index motor, the index plate lifting drive device and the locking mechanism. By utilizing the automatic control technology, the gear shaver retract hole machining device enables the machining procedure of the retract hole to achieve the automation, effectively improves the production efficiency, reduces the labor intensity of the laborers, and ensures the machining precision.

Jiequan Zhou

Papers

Method for measuring accuracy of large helix angle worm hob

Hardness detection device for shaped pieces

Fixing device for platinum rhodium thermocouple inner magnetic tube

Hardness testing device for special-shaped pieces

Gear shaver retract hole machining device