103 results about "Groove width" patented technology

The application provides a numerical control machining method for an end face ring groove, and relates to the field of numerical control machining.The numerical control machining method for the end face ring groove comprises the following steps: obtaining the cross-sectional shape of the end face ring groove; determining the real-time groove width of the tool shaft when feeding according to the cross-sectional shape and the real-time groove depth of the tool shaft when feeding; determining the center track radius of the tool shaft according to the real-time groove width and the width of the blade; determining a track circle which is concentric with the center of the center circle and has a radius equal to the center track radius according to the center of the center circle of the end face ring groove; coinciding the symmetric center of the inner and outer edges of the blade with the center of the center circle, coinciding the shaft center of the tool shaft with the center of the center circle, and controlling the rotation of the tool shaft to cut out the ring groove.The technical scheme of the application greatly improves the utilization rate of the tool, reduces the production cost, and covers a wide range of machining of the end face ring groove.

The utility model discloses groove-shaped plate processing equipment, and relates to the field of groove-shaped plate processing. Through the arrangement of the sliding groove, the sliding plate, the L-shaped plate and the pressing plate, under the action of the sliding groove, the L-shaped plate and the pressing plate can rotate, then the L-shaped plate and the pressing plate can flexibly and freely rotate, the rotating mechanism brings great convenience to plate machining, plates of various shapes and specifications can tightly lean against the L-shaped plate, and the machining efficiency is improved. Under the action of the rotating plate and the scales, the sliding plate rotates, the radian of the groove is accurately controlled, measurement errors are reduced, clear scale marks enable data reading to be simple and visual, working efficiency is improved, the device is used for positioning parts or tools, machining accuracy and precision are guaranteed, and the device is suitable for popularization and application. The grooving width is kept uniform, the construction quality is improved, the measurement and adjustment time is shortened, meanwhile, the structural stability is enhanced, and the convenience and safety of the plate in the grooving process are improved.

The application discloses a joint structure of high-energy beam welding and a processing and welding method thereof, and aims at solving the problems of stress concentration, gas residue, heat affected zone and difficult control of welding quality in the prior art. The joint structure comprises coaxially assembled base material I and base material II; a first annular groove is arranged on a welding surface of the base material I, a second annular groove is arranged on a welding surface of the base material II, the groove widths of the first annular groove and the second annular groove are consistent and the positions of the first annular groove and the second annular groove correspond; the first annular groove and the second annular groove form an annular stress relief channel after the base material I and the base material II are assembled; at least one exhaust channel is arranged on the base material I and / or the base material II, one end of the exhaust channel is communicated with the annular stress relief channel, and the other end is used for communicating with an external environment; and the maximum radial dimension of the communicated position of the exhaust channel and the annular stress relief channel is smaller than the groove width of the annular stress relief channel. The structure can eliminate stress concentration during welding, and prevent the initiation and expansion of cracks after welding.

The utility model discloses an active and passive annular locking plate self-ligating bracket, which comprises a bracket matrix provided with an arch wire groove, and further comprises an annular locking plate provided with an arc section and a concave section which are connected in sequence to form an annular structure with an opening, and an annular locking plate provided with an arc section and a concave section which are connected in sequence to form an annular structure with an opening, an annular groove is further formed in the portion, on the periphery of the arch wire groove, of the parent body, the annular groove is provided with a first annular groove opening, a second annular groove opening and an annular groove first transition section, and the groove width of the annular groove first transition section is larger than that of other portions of the annular groove. And the annular locking plate can rotate in the annular groove. The bracket disclosed by the utility model has the advantages that the bracket is simple in structure and convenient to lock, and active self-locking and passive self-locking can be realized at the same time.

A cathode plate insulation edge clamping strip for electrolysis comprises a clamping groove for clamping a cathode plate and a circular groove for containing an expansion rod, the directions of groove openings of the clamping groove and the circular groove are opposite, the clamping groove is a straight groove, the range of a groove cavity of the circular groove is larger than a semicircle, the clamping groove and the circular groove share a groove bottom, and symmetric planes in the groove width direction of the clamping groove and the circular groove are coplanar; the whole groove wall of the groove bottom section of the clamping groove is an equal-thickness groove wall, the groove wall of the groove middle section of the clamping groove is gradually and slowly thinned from the groove cavity to the groove wall of the groove opening, and the groove wall of the groove opening section of the clamping groove is sharply thinned from the groove cavity to the groove opening; the whole groove wall of the circular groove is equal in thickness; the joint of the outer wall face of the groove wall of the circular groove and the outer wall face of the groove bottom section groove wall and the outer wall face of the groove middle section groove wall of the clamping groove smoothly extends in an inwards-concave mode. According to the technical scheme, the stability and reliability of tightly clamping the negative plate by the edge clamping strip are improved, the smoothness of the edges of the two sides of a finished product plate obtained through electrolysis is improved, and electrolysis flaws are reduced.

A firestarter includes an integral block of wood of six sides. A slat and groove portion extends from an outermost bottom surface of a bottom side towards a top wall of the top side. The slat and groove portion includes a plurality of slats and a plurality of grooves. Each slat of the plurality of slats has a slat width and each groove of the plurality of grooves has a groove width. The slat width and the groove width are the same. The plurality of grooves extend through the front side, the back side and the bottom side and the plurality of grooves do not extend through the first side, the second side, and the top side.

The invention discloses an equal-groove-width variable-pitch engineering tire pattern structure giving consideration to low noise and full abrasion period equal saturation, and relates to the technical field of tires. The technical bottlenecks of single performance, inconsistent performance of each pitch, uneven abrasion, poor structural reliability and low universality in the variable pitch design of the traditional engineering tire are broken through, and through the integrated innovative design of the equal-groove-width foundation design, the density differentiation matrix solid salient points and the third-order universal pitch proportion, the variable pitch design of the engineering tire is achieved. The low noise, the performance consistency, the uniform abrasion and the structural reliability are synergistically considered, and the use requirements of heavy load and multiple working conditions of the engineering tire are comprehensively met.

The present disclosure relates to a tire in which: a meandering groove extending in a tire circumferential direction is formed on a tread surface; a groove width of the meandering groove in a tire width direction varies along the tire circumferential direction at a predetermined repeating cycle; a ratio Wmin / Wmax of a maximum width and a minimum width of the groove width is 0.35 to 0.85; a first groove wall and a second groove wall, which are two groove walls of the meandering groove, each extend in a sinusoidal meandering manner in a tread surface view with the predetermined repeating cycle as a cycle length; and a first sinusoidal curve formed by the first groove wall and a second sinusoidal curve formed by the second groove wall are arranged with a phase difference of 1 / 8 to 3 / 8 of a cycle in the tire circumferential direction in the tread surface view.

The utility model discloses a simple piston ring with oil storage grooves, which comprises a ring-shaped main body structure and is characterized in that a plurality of oil storage grooves are processed and formed on an excircle working surface of the ring-shaped main body structure by adopting a milling or grinding process, the plurality of oil storage grooves are annular and are uniformly distributed along the axial direction, the groove width of each oil storage groove is 0.5 mm, and the groove width of each oil storage groove is 0.5 mm. The depth of the oil storage grooves is 0.2 mm, and the sum of the widths of the oil storage grooves accounts for 1 / 3-1 / 2 of the height of the annular body structure. The lubricating device is simple in structure and good in lubricating effect.

A tyre (1) comprises a tread band (2) in a radially outer position, on which a tread surface (3) is defined. The aforementioned tread band (2) comprises a plurality of grooves (7A, 7B), each groove comprising a first wall (71) and a second wall (72) facing each other and defining a groove width (WG). At least one of the first wall (71) and the second wall (72) comprises a plurality of protrusions (8) protruding from at least one of the first wall (71) and the second wall (72), having a protrusion width (WP), where the protrusion width (WP) is less than 20% of the groove width (WG).

This invention discloses an online tool health monitoring method and system based on workpiece machining quality data fusion. First, the deviation between the actual groove width and the standard groove width of the workpiece is calculated, constructing a time-series sequence of groove width deviation. Then, a sliding time window mechanism is used to dynamically extract multi-dimensional time-series features, including mean, standard deviation, slope, out-of-tolerance count, and previous values, comprehensively characterizing the nonlinear evolution trend during tool wear. Further, the fused feature vector can be input into a random forest regression model to achieve high-precision prediction of the current groove width. Finally, based on the deviation between the predicted groove width and the standard groove width, the tool degradation state is evaluated in real time. This invention directly utilizes groove width data from the machining process, eliminating the need for additional sensor deployment. It offers advantages such as low cost, high reliability, and strong real-time performance, reducing scrap rate and improving tool life without increasing hardware investment.

Profile system (1) comprising at least one elongated rail profile (2) extending in a longitudinal direction (L) and having a constant cross-section, and at least one retaining element (3) designed to be detachably attached to the rail profile (2), wherein the rail profile (2) in cross-section has a substantially rectangular base section (6) provided on its front face with a receiving groove (7) extending in the longitudinal direction (L) which describes a circular arc (8) extending over at least 200° with a first radius R1 and is accessible via a groove opening (9) of a predetermined groove width (B), and at least one first fastening leg (13) which is substantially flush with the rear face of the base section (6) and projects outwards from the base section (6), and wherein the retaining element (3) comprises a retaining section (15) and a retaining element (15) attached thereto.a connecting section (16) elongated and extending in the longitudinal direction (L), wherein the connecting section (16) comprises at least a web (17) extending outwards from the retaining section (15) and a cylindrically shaped joint head (18) arranged at the free end of the web (17), the lateral surface of which, viewed in cross-section, describes a circular arc with radius R2 equal to or slightly smaller than radius R1, wherein the maximum distance (a, max) between a circular chord (19) bounding the circular arc and the lateral surface is slightly smaller than the groove width (B), so that the rod end (18) can be inserted through the groove opening (9) into the receiving groove (7) in a certain pivot position of the retaining element (3) with respect to a pivot axis (20) extending in the longitudinal direction (L) and can be locked within the receiving groove (7) during a pivoting movement about the pivot axis (20), characterized in that the web (17) of the connecting section (16) projects from the retaining section (15) at an angle (β) in the range between 100° and 110°.

The present disclosure provides a body comprising an insert pocket into which a cutting insert is mounted, the insert pocket including: a lower jaw part having a screw hole; an upper jaw part that is arranged apart from the lower jaw part; and a housing groove part into which the cutting insert is inserted, the housing groove part being formed between the lower jaw part and the upper jaw part, wherein the housing groove part is formed such that a groove width on a leading end side is narrower than a groove width on a rear end side

To provide a tire capable of further improving snow performance.SOLUTION: In a tire including a plurality of lug grooves 10 extending in a tire radial direction from a tread portion 1 toward a sidewall portion 2, a plurality of shoulder blocks 21 defined in a shoulder region by the lug grooves 10, and a plurality of side blocks 22 defined in a side region by the lug grooves 10, the plurality of lug grooves 10 include a first lug groove 11 and a second lug groove 12 alternately arranged along a tire circumferential direction, and the first lug groove 11 includes a first widened portion side 11A having a locally widened groove. The second lug grooves 12 each have a second widened portion side 12A where the groove is locally widened, and the positions of the first widened portion side 11A and the second widened portion side 12A in the tire radial direction are different from each other.SELECTED DRAWING: Figure 2

The utility model discloses a rotor punching sheet and a rotor core using the same. The rotor punching sheet comprises a disc-shaped punching sheet body, a shaft hole arranged on the punching sheet body, and an even number of magnetic steel groove groups uniformly distributed along the circumferential direction of the shaft hole at intervals. Each magnetic steel groove group at least comprises a pair of first magnetic steel grooves which are symmetrically distributed in a splayed shape; each first magnetic steel groove comprises an accommodating groove for accommodating magnetic steel and a circulating groove for circulating cooling liquid, which are connected in a penetrating manner; wherein the circulating groove is located at the tip of the splayed shape of each magnetic steel groove group; the groove width of the circulating groove is at least twice that of the accommodating groove; and the groove length of the circulating groove is 1 / 3-1 / 2 of the groove length of the accommodating groove.

The shoes are designed to absorb impact from the ground to the feet while maintaining ankle alignment and providing good control when the wearer is running on uneven terrain. [Solution] The shoe according to this embodiment includes a first groove extending forward from the inner foot side to the outer foot side on the bottom surface of the sole, and a second groove extending forward from the bottom surface side to the top surface side on the inner foot side of the sole, wherein the groove width at the inner foot side end of the first groove and the groove width at the bottom surface side end of the second groove overlap at least a portion along the boundary direction between the bottom surface and the inner foot side.

The utility model discloses a kind of layered weight-reducing groove type bulkheads, which is made by two layered structure plates opposite spliced, the layered structure plate thickness is half of general groove type bulkhead, the layered structure plate is divided into short distance groove and long rectangle groove, two kinds of grooves are oppositely arranged with interval, when two layered structure plates are spliced, the short distance groove outer ridge of one layered structure plate is spliced with the long rectangle groove inner groove of another layered structure plate, compared with general groove type bulkhead, the thickness of the layered spliced groove plate is the same on the same section, and the plate material of two layered structure plates is the same, but the groove wall of the layered spliced groove plate groove is the same as the general groove type bulkhead with the same length and the same number of groove width of short distance groove, but the groove wall of the layered structure plate is thinner, so the material is less.

To provide a trolley wire capable of being wound around a drum at a desired inclination angle.SOLUTION: A contact wire 1 suspended on a track by a suspension member 2 has a nominal cross-sectional area of 130mm2 or more and 170mm2 or less, and a pair of suspension grooves 1112 with which the suspension member 2 is engaged and a pair of wear limit grooves 1314 indicating a wear limit position are formed so as to be recessed from the 1a of an outer peripheral surface along a longitudinal direction. The pair of abrasion limit grooves 1314, have groove widths W larger than 0. 5mm and 1. 5mm or less and groove depths D larger than 0. 3mm and 0. 6mm or less, and the center line of the contact wire is inclined in a range of 5 ° or more and 25 ° or less with respect to the axial direction of the body part of the drum to be laterally wound around the drum.SELECTED DRAWING: Figure 2

The invention belongs to the technical field of measuring jigs, and discloses a groove width measuring jig. The groove width measuring jig comprises a base, a positioning piece, a guiding piece, a moving piece, a resetting piece and a measuring piece. According to the groove width measuring jig, the workpiece to be measured is placed on the jig to be detected, the workpiece does not need to be carried to a quality inspection center from a production station, secondary clamping of a special clamp is not needed, the risk that the workpiece is collided and damaged in the carrying process can be directly avoided, meanwhile, the operation time and precision loss of the clamping link are omitted, and the production efficiency is improved. And the real-time detection requirement in a high-efficiency production scene is met. Besides, as the positioning piece and the moving piece directly abut against the two side walls of the groove to be measured respectively, the reset piece provides pre-tightening force to ensure that the moving piece is always attached to the groove wall, and the guide piece limits the moving piece to move only in the direction perpendicular to the groove width direction, attaching deviation and direction deviation can be avoided, and the problems of manual reading errors and instable attaching are solved. And therefore, the detection requirements of high-precision parts can be met.

The invention relates to the technical field of parametric modeling, and discloses an automatic parametric modeling method and device for a three-dimensional groove model and a medium, and the method comprises the steps: presetting a reference surface, a shell thickness, a groove position, a groove direction, a groove width, a groove outer side depth, a groove inner side depth, a bottom hole shape and an opening inner diameter; taking the reference surface as the outer side surface of the shell, and obtaining the inner side surface of the shell, the surface where the inner contour of the outer groove is located and the surface where the inner contour of the inner groove is located through offset; based on the groove position and the tapping direction, a groove two-dimensional sketch is obtained, a bottom hole contour is constructed and stretched, an initial bottom hole cylindrical surface is obtained, and the initial bottom hole cylindrical surface intersects with the inner and outer contour surfaces to form an inner and outer groove inner contour model; and after enlarging the contour of the bottom hole, stretching and intersecting with the shell surface to obtain an inner and outer groove contour model. And finally, connecting each contour by using a ruled surface to generate a connecting surface and an inner groove and an outer groove, and sewing to form a complete groove three-dimensional model.

We provide forging techniques that ensure sufficient meat flow. [Solution] The groove width of the helical groove 44 provided in the punch body 43 is set to G1, and the groove width of the helical groove 23 provided in the helical die 21 is set to G2. The groove width G1 of the helical groove 44 is set to be wider than the groove width G2 of the helical groove 23. The helical groove 23 and the helical groove 44 are connected via a tapered groove 24 provided on the helical die 21 side. During forging, a portion of the material flows from the helical groove 23 into the helical groove 44 as shown by arrow (1).

The utility model provides a connecting mechanism and a crystal pulling furnace, the connecting mechanism comprises a connecting disc fixed to the periphery of an auxiliary furnace chamber of the crystal pulling furnace, the connecting disc is provided with an open groove extending along the circumferential direction of the auxiliary furnace chamber, and the open groove comprises a large groove width part and a small groove width part; the pin shaft is fixed on the isolating valve chamber below the auxiliary furnace chamber and comprises a large shaft diameter part and a small shaft diameter part below the large shaft diameter part, the radial size of the large shaft diameter part is smaller than the width of the large groove width part and larger than the width of the small groove width part, and the radial size of the small shaft diameter part is smaller than the width of the small groove width part; and the driving unit is used for driving the auxiliary furnace chamber to rotate between a first position and a second position around the longitudinal axis of the auxiliary furnace chamber relative to the isolating valve chamber, in the first position, the small shaft diameter part of the pin shaft is located in the large groove width part of the open groove, and in the second position, the small shaft diameter part of the pin shaft is located in the small groove width part of the open groove.

To achieve a balance between center wear resistance and wet performance. [Solution] The tire comprises a center circumferential groove 21 having alternating first inclined grooves 21Sa and second inclined grooves 21Sb arranged on the tire equatorial plane CL, a shoulder circumferential groove 22 having alternating third inclined grooves 22Sa and fourth inclined grooves 22Sb on the outer side of the center circumferential groove 21 in the tire width direction, a center land portion 31 between each circumferential groove 21, 22, and a center lug groove 50 connecting the tops of the center circumferential groove 21 and the shoulder circumferential groove 22. The center circumferential groove 21 has a first inclined groove 21Sa with an angle θ1 of 5° to 24° in absolute value relative to the tire circumferential direction, and a second inclined groove 21Sb with an angle θ2 of 20° to 40° in absolute value relative to the tire circumferential direction. Each center lug groove 50 is composed of an inner groove 50i with a groove width W1 on the center circumferential groove 21 side and an outer groove 50o with a groove width W2 on the shoulder circumferential groove 22 side, with the groove width W1 being narrower than the groove width W2.

The application discloses an engineering tire pattern structure with equal groove width, variable pitch, low noise and full wear period, and the like, and relates to the technical field of tires. The application breaks through the technical bottleneck of single performance, inconsistent performance of each pitch, uneven wear, poor structural reliability and low universality in the design of a traditional engineering tire variable pitch, and through integrated innovative design of equal groove width basic design+density differentiation matrix solid convex point+three-order universal pitch proportion, the application realizes the coordinated consideration of low noise, performance consistency, uniform wear and structural reliability, and is suitable for the use requirements of engineering tires in heavy load and multiple working conditions in all directions.

A wet-type friction disc (1) includes lubrication grooves and a plurality of land portions defined by the lubrication grooves. The lubrication grooves have a plurality of circumferential groove portions extending in a circumferential direction and having a predetermined groove width in a radial direction, and a plurality of intersecting groove portions extending in a direction intersecting the circumferential direction. At least some of the circumferential groove portions have a circular arc shape such that an end portion in the circumferential direction is positioned adjacent to one of the land portions in the circumferential direction, and such that the groove width is entirely contained within a range in the radial direction spanned by the one land portion.

The utility model relates to the field of pipe grinding machines, and discloses a pipe groove grinding machine which comprises a workbench, the top of the workbench is fixedly connected with a vertical seat, one side of the vertical seat is provided with an opening mechanism, the top of the workbench is provided with an adjusting groove, an L-shaped adjusting seat is arranged in an inner cavity of the adjusting groove in a sliding mode, and the L-shaped adjusting seat is provided with a groove. According to the pipe groove grinding machine, after a hydraulic telescopic rod in the adjusting seat drives a pipe to move upwards to a proper position, a servo motor is started to drive a screw rod, so that the pipe moves in the direction of an opening mechanism and extrudes the pipe, and a T-shaped block in a T-shaped groove is matched, so that the adjusting seat moves rightwards to compress a high-strength spring; the scale of the graduated scale is made to be equal to the groove width, at the moment, when a pipe is beveled through the opening mechanism, the elastic force of the high-strength spring is matched, the purpose of precise beveling is achieved, and the problem that an existing beveling machine is difficult to achieve precise groove grinding according to the groove requirement is solved.

The application discloses a circuit board forming milling method, which comprises the following steps: milling inner grooves: when the inner grooves are square groove holes or ring groove holes, and when the groove width is less than or equal to 2.0 mm, a drill needle with a width of 0.2 mm less than the groove width is selected to drill a lower knife position guide hole, and the lower knife position guide hole is arranged at the center of the two top ends of the groove; when the groove width is greater than 2.0 mm, a 1.8 mm drill needle is selected to drill a lower knife position guide hole, and the lower knife position guide hole is arranged at the groove end and close to one side edge, and the distance between the lower knife position guide hole and the forming line is 0.2 mm; the lower knife and the knife receiving point of the inner groove are arranged at the guide hole; milling outer frames: when a right angle is milled, the lower knife point is extended outward by 1.0 mm, and the receiving point is extended outward by 1.0 mm; when an oblique angle is milled, the lower knife point is extended outward by 1.0 mm, and the knife receiving point is extended outward by 0.5 mm; when an R angle is milled, the lower knife point is extended outward by 1.0 mm, and the knife receiving point is overlapped with the inner straight line part of the board by 1.0 mm after the arc. The circuit board forming milling method provided by the application can improve the size precision of the forming milling, prolong the milling distance of the milling cutter and save the milling cutter cost.

To improve low rolling resistance and wet performance. [Solution] The tread surface 15A has a plurality of circumferential main grooves 21, a center portion 31 between each of the outermost circumferential main grooves 21 in the tire width direction, circumferential narrow grooves 22 in the center portion 31 that are narrower in width than the circumferential main grooves 21, a center land portion 31A, 31B in the center portion 31 that is divided by the circumferential main grooves 21 and the circumferential narrow grooves 22, and both ends of the center land portion 31A, 31B are open to the circumferential main grooves 21 and the circumferential narrow grooves 22. The tire includes multiple narrow grooves 40 arranged in the circumferential direction, with their openings facing each other across the circumferential groove 22, and arranged so that the angle with respect to the center line of the circumferential groove 22 changes for each of them, and the groove width is narrower than that of the circumferential main groove 21, and a chamfered portion 50 that is positioned in the center land portion 31A, 31B, on the low-angle side formed by each of the facing narrow grooves 40 in the circumferential direction, extending from the groove opening of the circumferential groove 21 to the groove opening of the narrow groove 40 in the circumferential direction.

The invention provides a shoe, which can release impact from the ground to the foot when a wearer runs on an uneven ground, and can keep the ankle horizontal to obtain good controllability. A shoe according to the present embodiment includes: a first groove portion extending forward from an inner foot side toward an outer foot side on a bottom surface of a sole; and a second groove portion extending forward from the bottom surface side of the sole toward the upper surface side on the inner foot side surface of the sole, the groove width of the inner foot side end portion of the first groove portion and the groove width of the bottom surface side end portion of the second groove portion at least partially overlap each other along the boundary direction of the bottom surface and the inner foot side surface.

A tire includes a first circumferential main groove 11 and a second circumferential main groove 12 in a tread surface 1. A resonator 21 is formed in an intermediate land portion 20 partitioned between the first circumferential main groove and the second circumferential main groove. The resonator has an auxiliary groove 211 whose both ends terminate within the intermediate land portion. The groove depths D1 of the first and second circumferential main grooves are 50% or less of the groove widths W2 of the first and second circumferential main grooves, respectively. The groove depth D3 of the auxiliary groove of the resonator is 70% or more of the groove depth D1 of the first circumferential main groove.