13 results about "Tooth length" patented technology

An ultrasonic blade is provided along a convexly arcuate distal edge and at least one longitudinal edge with a continuous array of teeth including a first subset of teeth along the convexly arcuate distal edge and a second subset of teeth along the at least one straight longitudinal edge. The teeth along the convexly arcuate distal edge differ in tooth length and optionally in inter-tooth separation or pitch from the teeth along one or both of the longitudinal edges.

The application discloses a spring-tooth type film picking and collecting device, a residual film recycling machine and a working method, and belongs to the technical field of agricultural mechanical equipment. The spring-tooth type film picking and collecting device comprises a rack, a spring-tooth type film picking mechanism and a film collecting mechanism. The spring-tooth type film picking mechanism comprises a film picking roller mounted on the rack, a plurality of tooth hanging shafts arranged on the film picking roller, and a plurality of spring teeth arranged on the tooth hanging shafts. The film collecting mechanism comprises a film collecting box mounted on the rack, a compression mechanism arranged in the film collecting box, a film discharging plate arranged at an opening of the film collecting box, tooth length grooves corresponding to the spring teeth on any tooth hanging shaft and arranged on the film discharging plate, and the bottom of the film discharging plate is rotationally connected to the rack. The compression mechanism enables the film discharging plate to be in an upright state and an inclined state. The device and the recycling machine can effectively pick residual films, improve the residual film recycling efficiency, reduce the missing picking rate of damaged residual films and fragment residual films, simultaneously reduce the impurity rate of mechanical film collection, and can compress the recycled residual films, so that subsequent packaging and transportation are facilitated.

The utility model provides a comb tooth spacing and tooth length detection tool, which comprises a pair of length detection cylinders, a pair of telescopic rods are installed at the cylinder openings of the pair of length detection cylinders, the telescopic ends of the pair of telescopic rods are fixedly connected with a detection cap together, the side wall of each telescopic rod is embedded with a length scale which is arranged along the telescopic direction of the telescopic rod, and the length scale is connected with the detection cap. A connecting rod is fixedly connected between the pair of length detection cylinders, the connecting rod is sleeved with a sleeve, one end of the sleeve is provided with a rotatable first detection strip, the other end of the sleeve is slidably provided with a sliding sleeve, and the side wall of the sliding sleeve is provided with a rotatable second detection strip; a spacing scale is embedded in the wall of the sleeve in the length direction of the sleeve. According to the tool, the tooth length can be rapidly detected, whether the lengths of multiple teeth of the wooden comb are consistent or not can be more accurately judged by synchronously detecting the two tooth lengths, and meanwhile, the distance between the teeth can be accurately detected.

The invention relates to a device and a method for online measurement of geometric parameters and crack defects of a circular saw blade matrix. When the linear workbench is located at the initial position, the circle center of the centering chuck coincides with the center of the area-array camera, an inner hole of the circular saw blade base body is placed on the linear workbench through the centering chuck during working, the pressure sensor sends a trigger signal, the centering chuck works to enable the circle center of the circular saw blade base body to coincide with the center of the area-array camera, and the area-array camera collects images of the circular saw blade base body. The geometric features of the circular saw blade base body are extracted, measurement of parameters such as the outer circle diameter, the tooth length, the tooth seam width and the tooth number is achieved, the linear workbench is controlled to drive the circular saw blade base body to move, and the tooth seam is located under the linear array camera; scanning a tooth seam area of the rotating circular saw blade through a linear array camera to generate a space-time image to detect crack defects, segmenting cracks by using a deep learning model, and measuring the lengths of the cracks. The device has the remarkable advantages of simple structure, good installation robustness, multi-parameter measurement, high measurement precision, high speed, high automation degree and the like.

The invention belongs to the technical field of gear machining, and particularly discloses a hypoid gear machining parameter error correction method and system, a terminal and a medium. Comprising the steps that tooth surface detection is conducted on a machined hypoid gear, actual tooth surface data are obtained and compared with target tooth surface data, and tooth surface error distribution is obtained; according to the distribution characteristics of the tooth surface errors in the gear tooth surface space, directional characteristic division is conducted on the tooth surface errors, and tooth surface error characteristics in the tooth length direction and the tooth height direction are obtained; machining parameter correction is determined based on the tooth surface error characteristics, and machining parameters comprise tool angle parameters and tool relative position parameters; the machining parameters are adjusted according to the machining parameter correction amount, and remachining is executed; and tooth surface detection or meshing state evaluation is conducted on the remachined gear, and when the detection result meets the preset requirement, the corresponding machining parameter is determined as the final machining parameter. According to the method, the stability and consistency of the hypoid gear machining process can be improved.

The present invention relates to a method for cutting cellulose foam material, comprising: providing a die cutting tool a body having a serrated edge with more than one cutting tooth wherein the cutting tooth has a tooth length and a tooth width between the top of each tooth, providing a cellulose foam material having a thickness, positioning the cellulose foam material adjacent to the die cutting tool and applying a force to the die cutting tool thereby cutting the cellulose foam material wherein the teeth length of the cutting tooth is at least half the size of the thickness of the material and the compression of the material during cutting is less than 10% of the total thickness of the material. The invention also relates to a die cutting tool for cutting cellulose foam materials.

We provide technology to improve the accuracy of gear cutting processes. [Solution] The machine tool comprises a workpiece spindle and a tool holder. The tool has multiple teeth of different lengths arranged in an arc in order of tooth length. The machine tool comprises a rotation drive unit that rotates the workpiece spindle, a feed drive unit that moves the tool holder, and a control unit. The control unit repeatedly performs a gear cutting process that forms grooves on the workpiece surface by reciprocating the tool holder in the direction of the rotation axis at each position from a predetermined start position to a predetermined end position in the radial direction of the rotation axis, and an angle adjustment process that rotates the workpiece spindle by a predetermined angle. The starting position when performing the gear cutting process for the second time is closer to the workpiece surface than the first time, or the distance at which the gear cutting tool is initially moved from the starting position to the workpiece side when performing the gear cutting process for the second time is greater than the distance at which the tool is initially moved from the starting position to the workpiece side when performing the gear cutting process for the first time.

The utility model discloses a spark blocking tool for grating plate welding. The spark blocking tool comprises a main plate, comb-shaped teeth and through holes, wherein the main plate is used for grating plate welding and spark blocking; the plurality of comb-shaped teeth are fixedly arranged on the main plate in a linear array, and the comb-shaped teeth are positioned in a grating groove of the grating plate; the main plate and the comb-shaped teeth form a grating plate welding spark blocking tool; two through holes are symmetrically formed in the main plate; the main plate is a galvanized steel plate with the thickness of 3 mm, the length of 290 mm and the width of 220 mm; the number of the comb-shaped teeth is nine, the length of each comb-shaped tooth is 103 mm, the width of each comb-shaped tooth is 25 mm, and the distance between every two adjacent comb-shaped teeth is 7 mm. The spark blocking tool for grating plate welding is reasonable in structure, ingenious in design, simple in arrangement, small in size, convenient to carry, good in spark blocking effect and high in practicability.

The utility model discloses a residual film picking mechanism which comprises a grinding roller, a guide roller and a demolding roller which are sequentially and rotationally arranged on a machine frame of a residual film picking machine from bottom to top, the axes of the grinding roller, the guide roller and the demolding roller are arranged in parallel, and the grinding roller, the guide roller and the demolding roller are driven by power equipment arranged on the machine frame of the residual film picking machine to rotate. The grinding roller, the guide roller and the demolding roller are jointly wound with four groups of spike tooth belts at intervals in the axial direction, the grinding wheel, the guide wheel and the demolding roller are wound with a plurality of short spike tooth belts at intervals in the axial direction, and a plurality of spike teeth are uniformly and fixedly arranged on the outer sides of the spike tooth belts at intervals; a plurality of short spike teeth are evenly and fixedly arranged on the outer side of the short spike tooth belt at intervals, and the length of the long spike teeth is larger than that of the short spike teeth. The plastic film residue picking device effectively improves the plastic film residue picking effect on the deep position of a side film and the rolling part of a harvesting machine, and therefore the plastic film residue picking rate is improved.

The invention provides a linear motor which comprises a rotor, the rotor comprises a rotor iron core, and the rotor iron core comprises a yoke part, a plurality of first tooth parts and two second tooth parts; the first tooth part is a strip-shaped tooth, and a first chamfer is arranged at the joint of the tooth side face, facing the first tooth part, of the second tooth part and the end face, deviating from the yoke part, of the second tooth part. The stator comprises a stator body; a plurality of magnetic parts, wherein the polar distance between two adjacent magnetic parts is recorded as tau; in the first direction, the length of the first chamfer is marked as X, and the maximum tooth width of the second tooth part is marked as Ws; in the second direction, the length of the first chamfer is marked as Y, and the maximum tooth length of the second tooth part is marked as H; and in at least one second tooth part in the two second tooth parts, Ws, X, tau, Y and H meet the following conditions: Ws-X is less than tau, Y is more than 0 and less than or equal to H, and Ws is less than tau. Through reasonable arrangement of the structure of the linear motor, the cogging force of the linear motor can be significantly reduced, and the thrust density of the linear motor is not affected.

Apparatus and associated methods relate to a chainsaw sharpening marker system configured to guide sharpening of each tooth using a series of aligned visual marks positioned on the teeth themselves. In an illustrative example, each cutting tooth on a chainsaw chain includes a sharpening marker including a set of marks etched at a predetermined angle that corresponds to the cutting angle of the tooth. The sharpening marker, for example, enables a user to visually align a sharpening tool during operation by referencing both the angle and position of the etched marks relative to the tooth's cutting edge. Various embodiments may advantageously ensure consistent angular sharpening and equal tooth length across alternating left- and right-facing teeth, improving straightness and precision in cutting performance.

The invention relates to a vehicle manufacturing part, in particular to a groove rubbing process for a vehicle door and vehicle body linkage shaft, and solves the problem of the groove rubbing process of the linkage shaft. The method at least comprises the procedures of cold heading, groove rubbing, straight line rubbing and surface electroplating, the step of groove rubbing comprises rough machining and heat treatment, groove rubbing forming, groove inner side finishing and electrode roughening, and a groove rubbing plate for groove rubbing and a thread rolling plate for straight line rubbing are die steel subjected to surface treatment; wherein the tooth pitch of the groove rubbing plate is 8.7 mm, the tooth depth is 0.53 mm, the helical angle is 0 degree, the straight grain rubbing cutter plane is 0.06 / 0.08, the tooth pitch is 1.81 mm, the outer diameter is 6.44 / 6.48 mm, the tooth depth is 0.91 mm, the helical angle is 6 degrees and 25 minutes, the tooth length is 34.6 mm, the tip height is 0.6 mm, the tip angle is 20 degrees, and the cutter angle is 45 degrees. In the process of groove rubbing, enough machining allowance is reserved during rough machining, and then heat treatment is conducted. And through a thread rolling matching process, the production and processing efficiency is remarkably improved, and the quality of a finished product is more stable through a thread rolling process.

The excavator bucket tooth comprises a plurality of tooth holders connected with a bucket and bucket teeth arranged on the corresponding tooth holders in a sleeving mode, the bucket teeth are 10-20 cm longer than existing bucket teeth, clamping grooves are formed in the upper ends and the lower ends of the tooth holders respectively, tensioning assemblies are arranged in the clamping grooves, and installation grooves are formed in the positions, corresponding to the clamping grooves, of the inner sides of the bucket teeth. A threaded hole communicated with the mounting groove is formed in the upper portion, corresponding to the clamping hook, of the bucket tooth, a counterbore is formed in the upper portion of the threaded hole, and a threaded ejector rod is connected into the threaded hole in a threaded mode. Compared with the prior art, the length of the bucket tooth is increased by 10-20 cm, the bucket tooth effectively touches a dirt band at a deeper part in a thin coal seam, meanwhile, the tooth holder is provided with the clamping groove and the tensioning assembly, the clamping hook capable of automatically resetting is arranged in the bucket tooth, the clamping hook is matched with the threaded ejector rod, loosening, falling off or pin shaft deformation in the using process are avoided, meanwhile, the working efficiency is improved, and the service life of the bucket tooth is prolonged. And the phenomenon of hurting people during maintenance is reduced.