36results about "Key-ways measurements" patented technology

The invention provides a gauge for measuring the maximum and minimum values of intervals between rods of an internal spline on a part, wherein the gauge is easy for manufacturing and measurement and is higher in efficiency. According to the gauge, the internal spline is a small-modulus involute odd-tooth internal spline, and the gauge is of a split structure. A big gauge column comprises a cylinder I with the height I, wherein the height of the cylinder I is corresponding to the height from the upper end face of the internal spline to the lower end face of the part, and the diameter I of the cylinder = (the maximum value of intervals between rods + the diameter of gauge rods)/cos(90 degrees/the number of teeth of the internal spline) - the diameter of the gauge rods. The diameters of threegauge rods are corresponding to the widths of tooth slots of the internal spline. The cylinder I of the big gauge column is located in the part. Two gauge rods are located in any two tooth slots which are located in a 45-degree (central angle) range of one side of the internal spline, and one gauge rod is inserted into any one tooth slot which is located in a 45-degree (central angle) range of the other side of the internal spline, wherein the above two 45-degree (central angle) ranges are symmetric at the center of the small-modulus involute odd-tooth internal spline.

The invention relates to a special measuring tool, in particular to a special measuring tool for measuring the symmetry degree of a shaft part key groove and solve the technical problem that people can measure the symmetry degree of the shaft part key groove conveniently, a manual ruler is not needed, and the phenomenon that the efficiency is affected by hand pain is avoided. The technical schemeof the special measuring tool for measuring the symmetry degree of the shaft part key groove comprises a hollow handle, a first support bar, a support plate, an adjusting device, a first measuring rodand the like; the first support rod is fixedly connected to the lower part of the left side of the front side of the hollow handle, and a first gear is rotationally arranged at the upper part of therear side of the first support rod. According to the special measuring tool for measuring the symmetry degree of the shaft part key groove, under the action of the first measuring rod and the second measuring rod, a press block is pushed, the first measuring rod and the second measuring rod can measure the symmetry degree of the shaft part key groove, the manual ruler is not needed to measure theposition length of the key groove to obtain the symmetry degree, the operation is more convenient, and a detection shaft can move more smoothly in the hollow handle under the action of a universal ball.

The invention discloses a crankshaft key groove length gauge, comprising a key groove detection block, wherein a key groove tail measuring block and a key groove head measuring block are arranged on the key groove detection block, a key groove tail measuring port is formed in the bottom of the key groove tail measuring block, a key groove head measuring port is formed on the left side of the key groove head measuring block, and the key groove detection block is provided with chamfers. The crankshaft key groove length gauge is scientific and reasonable in structure and convenient to use; through the measuring ports in the key groove measuring blocks, whether a crankshaft key groove is qualified or not can be conveniently detected, and the crankshaft key groove detection efficiency is improved; through scales on the key groove measuring blocks, the crankshaft key groove detection precision is improved, and the crankshaft key groove can be conveniently detected; moreover, the crankshaft key groove block is integrated, so that damage of a measuring gauge is avoided and the practicability of the measuring gauge is improved.

The invention discloses a detection tool and method for measuring the axial position size of a semicircular key slot of a bent shaft. The detection tool comprises a gauge block and a measure gauge, wherein the gauge block is of a flat round shape, the thickness of the gauge block is designed according to the width of the key slot, the round diameter of the gauge block is designed according to the diameter of the inner arc of the key slot, when the gauge block is put into the key slot, an arc of the gauge block is in contact with two sides of the inner arc of the key slot to realize V-shaped positioning, and a central line of the gauge block in the vertical direction overlaps a central line of the inner arc of the key slot; and the measure gauge is a cylinder with a through end and a stop end, the diameters of the through end and the stop end are determined according to the outer diameters of the semicircular key slot, a measurement reference surface and the gauge block, and the gauge block and the measure gauge are matched in use so as to determine whether the size of a detected component from the center of the semicircular key slot to the reference surface meets the drawing requirements. When the technical scheme of the invention is used for measuring the axial position size of the semicircular key slot of the bent shaft, the measurement cost is low, the measurement accuracy is high, an operation method is simple, and the detection efficiency is high.

The invention provides a device and a method for measuring the symmetry of a rudder shaft slot of a rudder shaft part. A gauge block I, a gauge block II and a gauge block III are connected side by side above a base through connecting screws. A dial gauge is adsorbed to the base by magnetic force, and is arranged near the gauge block I, the gauge block II or the gauge block III as needed during measurement. The gauge block I, the gauge block II and the gauge block III are set to adapt to rubber shafts with different slot width, and can be disassembled. During measurement, one side in a rudder shaft slot of a rudder shaft part is put close to one gauge block; the contact of the dial gauge contacts the conical surface of the rubber shaft, the rubber shaft is moved along the surface of the gauge block, and the maximum reading of the dial gauge is recorded; the rubber shaft is turned so the other side in the rubber shaft slot is put close to the gauge block; the contact of the dial gauge contacts the conical surface of the rubber shaft, the rubber shaft is moved along the surface of the gauge block, and the maximum reading of the dial gauge is recorded again; and the absolute value of the difference between the two readings of the dial gauge is the symmetry. The device of the invention has a simple structure and a good application effect. The method of the invention is easy to operate, and costs low.

The invention provides an automatic spline recognition device for bearing processing, which comprises a base, wherein the base is provided with a bearing placement platform, a press-fitting cylinder is arranged right above the bearing placement platform, the press-fitting cylinder performs press-fitting on a bearing component, the bearing placement platform is provided with an internal spline detection block, the internal spline detection block is provided with an internal spline detection groove, the position of an internal spline of a product is detected through the internal spline detectiongroove, an external spline detection block is arranged between the bearing placement platform and the press-fitting cylinder at one side, the external spline detection block is provided with a detection groove, detection is performed on an external spline through the detection groove, the rear part of the external spline detection block is provided with a telescopic cylinder, the external splinedetection block is driven to move through the telescopic cylinder so as to get close to a bearing. The automatic spline recognition device performs detection on an internal spline of a bearing throughthe internal spline detection block and performs detection on an external spline of the bearing through the external spline detection block when the bearing is placed, thereby automatically completing the detection work, and improving the detection efficiency. The automatic spline recognition device shifts a bearing which is incorrectly placed through a shifting rod so as to adjust the position of the bearing.

The invention relates to a wind power shaft testing fixture, which comprises a cylinder which is used for sleeving a wind power shaft; a positioning device used for being inserted into a wire hole inthe wind power shaft; a measuring device used for clamping a key groove in the wind power shaft and measuring the distance between the key groove and the wire hole; a detection device inserted into the inner hole of the wind power shaft and used for detecting the threaded hole in the end surface of the wind power shaft; and an angle ruler used for measuring an included angle between the wire holeof the wind power shaft and the key groove. Firstly, the wind power shaft is inserted into the cylinder body and fixed under the clamping effect of the positioning device and the wire hole, then the included angle between the wire guide hole of the wind power shaft and the key groove in the radial direction of the wind power shaft is measured through the angle ruler, and the measuring device measures the distance between the key groove and the wire hole in the axial direction of the wind power shaft, so that whether the detected numerical value meets the production requirement is judged. The wind power shaft positioning device, the measuring device and the detection device jointly detect the position relation of the wind power shaft key groove, the wire hole and the end face threaded hole,and the detecting precision is improved.

The invention relates to the technical field of detection, and discloses an automatic keyboard bottom plate detection device. The automatic keyboard bottom plate detection device comprises a workbench; the workbench is provided with a mounting base, a demonstrator, a computer and a detection platform; a mechanical arm is rotationally connected to the mounting base, and the mechanical arm is connected with the demonstrator; a digital display dial indicator is arranged at the bottom of the mechanical arm and is connected with the computer; an electromagnet is arranged at the bottom of the detection platform, and the bottom of the electromagnet is connected with the workbench; and the top of the detection platform is detachably connected with a plurality of limiting blocks capable of being attracted by the electromagnet. According to the automatic keyboard bottom plate detection device provided by the invention, the movement track of the mechanical arm is controlled through the demonstrator; a hook on a keyboard bottom plate is detected through the digital display dial indicator, detected data are transmitted to the computer, and the data are displayed through a display of the computer, so that whether the height of the hook meets the production requirement is calculated; and the detection efficiency of the keyboard bottom plate is greatly improved, and the detection accuracy is higher than that of manual detection.

The invention discloses a worm gear center hole detection marking device which is characterized by comprising a detection plate with a center hole, a key groove corresponding to the position of the key groove of the center hole of a to-be-tested worm gear, a key matched with the key slot is additionally arranged, a side hole corresponding to the position of the side hole of the worm gear is further formed in the detection board, and two key grooves in the center hole are formed and oppositely arranged on the wall of the central hole and oppositely arranged on the two sides of the two key grooves. By the adoption of the scheme, the device is compact in structure, and convenient to use, and is tidy and attractive, and the detection efficiency of the included angle between the two holes of the worm gear can be improved. The accuracy of the detection is ensured, the processing is fast, and the production cost is greatly reduced.

The invention relates to a detection method for run-out of an inner diameter groove. The method comprises the following steps: S1, manufacturing a high-precision measuring tool block; S2, collecting circle centers in multiple directions to form a fitting circle; s3, judging whether the circle of the inner diameter groove is qualified relative to the benchmark B by evaluating the run-out relation between the fitting circle and the benchmark B. According to the detection method, inner diameter groove run-out detection is carried out, measurement can be carried out by fully utilizing an existing three-coordinate system only by spending a small amount of cost to manufacture a corresponding measuring tool block, and it is not needed to consume too long time to load an expensive star-shaped measuring head, so that the production cost is greatly reduced, and the production efficiency is improved. The detection method can be widely applied to measurement of the run-out of the inner diameter groove with the run-out requirement larger than or equal to 0.1.

The invention relates to a groove depth measuring instrument. The groove depth measuring instrument is characterized in that the upper part of a measuring rod is provided with a dial gauge outfit; thelower part of the measuring rod is provided with a stopping block; a positioning screw is arranged between the stopping block and the measuring rod. With the groove depth measuring instrument adopted, the problem of the inaccuracy of the measurement of the depth of a key groove or seal groove of a workpiece can be solved. The groove depth measuring instrument is a best tool for measuring the keyway of a workpiece in the machining field.

The invention provides a movable workbench V-groove inspection tool which comprises a positioning shaft, a fixing plate, a front positioning plate, a floating gauge stand and a rear positioning plate are sequentially connected to the positioning shaft in series, groove-shaped rollers are arranged at the bottoms of the floating gauge stand and the fixing plate and located in a V-shaped groove of a V-shaped sample block, a spring is arranged between the floating gauge stand and the front positioning plate, and the groove-shaped rollers are located in the V-shaped groove of the V-shaped sample block. A dial indicator is arranged on the floating gauge stand; the fixing plate, the front positioning plate and the rear positioning plate are all fixed on the positioning shaft, and the floating gauge stand is slidably installed on the positioning shaft. The invention further provides a movable workbench V-groove inspection method. The device is of an integrally-assembled structure, the structure is not scattered, measurement is convenient, and the influence of measurement errors on a finished aluminum profile on the movable workbench is greatly reduced; the operation is simple, time and labor are saved, the use is convenient, a green hand can easily operate, the reading is visual, and the reading error is effectively reduced; the application range is wide.

The invention provides a symmetry rapid test device. A detection hole which penetrates through the front portion and back portion of a positioning detection block is formed in the center of the positioning detection block; the lower end surface of the detection hole is a V-shaped surface which forms a left observation surface and a right observation surface which intersect at the lower end and are in symmetry in a left-and-right direction; a vertical guide groove is formed right above the intersection of the left observation surface and the right observation surface; the vertical guide groove extends to the upper end surface of the positioning detection block; the vertical guide groove is communicated with the detection hole; the space of the detection hole is large enough to accommodate a workpiece shaft; and the workpiece shaft has enough floating space in the detection hole. With the symmetry rapid test device of the invention adopted, the problem that the symmetry of a shaft and a key slot is inconvenient to detect is solved. The symmetry rapid test device has the advantages of structure simple, convenient and rapid operation, reliable detection result, low manufacturing cost and greatly improved working efficiency.

The invention belongs to a detection tool, and particularly relates to a tool for rapidly detecting geometric tolerance of a shaft hole of a butterfly valve and a butterfly plate. The invention relates to a tool for rapidly detecting geometric tolerance of a shaft hole of a butterfly valve and a butterfly plate. The detection tool comprises a plug gauge with a key, a main cross beam, a limiting sleeve, an adjusting cross beam, a plug gauge and a nut. The tool has the advantage that the geometric tolerance of the shaft hole of the butterfly plate can be rapidly detected. The whole detection tool is an adjustable dynamic detection tool, the use is simple, after the detection tool is assembled, a proper plug gauge and a plug gauge with a key are matched, and the plug gauges are respectively aligned with the shaft holes at the two sides of the butterfly plate and are put into the shaft holes at the two sides of the butterfly plate, so that the form and location tolerance of key grooves in the shaft holes at the two sides and one side can be rapidly measured. Meanwhile, the full-depth form and location tolerance detection of the shaft hole of the butterfly plate can be realized by adjusting the movement of the cross beam. The plug gauge is fixed on the cross beam through the nut, so that the detection of butterfly plates with different specifications can be quickly completed within the adjusting range of the cross beam only by replacing a proper plug gauge, and the device has good universality.

A non-contact key tooth profile learning method and system are provided. The non-contact key tooth profile learning method comprises the following steps: acquiring first profile point cloud data of a key by means of a line laser method; and processing the first profile point cloud data so as to obtain first 3D profile information.