21 results about "Axis surface" patented technology

The application discloses a double-sided synchronous composite material rolling welding mechanism and belongs to the technical field of rolling welding machines. The mechanism comprises a supporting body, an adjusting assembly, a driving assembly and a synchronous assembly. The upper surface of the supporting body is fixedly connected with a supporting frame and a supporting seat, and the supporting frame is arranged in front of the supporting seat. The supporting seat is provided with four supporting seats, and the four supporting seats are arranged in two groups and are arranged in axial symmetry about the supporting frame. The mechanism can not only make two roller electrodes close to each other, but also adapt to composite materials with different thicknesses. The two roller electrodes can stably extrude the two sides of the composite material, thereby helping to synchronously weld the two sides. In addition, the roller can synchronously move with the roller electrode, thereby helping the symmetric surfaces of the two roller electrodes to be coplanar with the axial surface of the composite material, thereby helping to stably synchronously weld the two sides of the composite material, and thereby helping to improve the welding quality.

This method for manufacturing a bearing element is provided with: a first step for preparing an upset workpiece; a second step for forming a recess (DP1), a flange (FR1), and a first axial surface (AX1) on the workpiece by means of one or two plastic working; and a third step of punching off the bottom of the recess (DP1) of the workpiece. The recess (DP1) has a depth in the axial direction with respect to the first axial surface (AX1). The flanges (FR1) extend towards the outer side in the radial direction. The first axial surface (AX1) formed in the second step provides one end surface of the bearing element. The rib (FR1) formed in the second step has a surface height substantially equal to or greater than the surface height of the first axial surface (AX1) at the radially outer end.

The invention belongs to the technical field of turning machining, and particularly relates to a double-top-driven turning tool and a machining method. The tool comprises a driving shaft, a first tip, a positioning driving part, a positioning groove and a second tip. Wherein the positioning driving part is of a semi-cylindrical structure, a center groove matched with the first center is formed in the rear section of the axial surface, and a positioning groove matched with the side wall of a workpiece in shape is formed in the front section of the axial surface. And a workpiece is bidirectionally centered and supported through the double tips and is driven to rotate by the middle axial surface of the positioning driving part. Through the combination of surface contact driving and precise positioning, radial run-out and axial run-out of a workpiece are effectively controlled, high-precision, high-efficiency and damage-free clamping is achieved, and the precise turning device is particularly suitable for precise turning of non-circular-section and thin-wall parts and is rapid in clamping, stable in transmission, wide in applicability and high in rate of finished products.

The utility model discloses a shaft rotation angle measuring tool which comprises a fixing piece used for positioning, a cross rod is rotatably arranged on the end portion of the fixing piece, a guide bearing is arranged on the end portion of the cross rod, a rotation tool is tightly attached to the shaft face of the guide bearing, and the rotation tool is connected with a V-shaped block in a clamping tool used for fixing a shaft to be measured. After the clamping tool clamps the to-be-detected shaft, the shaft rotates axially and drives the clamping tool to rotate synchronously, so that the rotary tool is driven to rotate, the sensor confirms the axial rotation angle of the shaft by detecting the rotation angle of the rotary tool, and the axial rotation angle of the shaft is detected by the rotation angle of the rotary tool. Therefore, accurate measurement of the rotation angle of the shaft is realized.

The utility model relates to the technical field of tripods, in particular to a locking structure of a tripod bracket, which comprises a gear shaft and a sliding sleeve, the gear shaft is rotatably mounted on a tripod head of a tripod, a gear on the gear shaft is arranged in a through cavity and meshed with a rack part on the bracket, one end of the gear shaft is provided with an optical axis surface and an embedding surface, and the other end of the gear shaft is provided with a sliding sleeve. The gear shaft is provided with an embedded surface, the embedded surface is provided with a plurality of grooves which are arranged in an annular array mode, the embedded surface is located at the end of the gear shaft, the sliding sleeve is provided with a hole, the hole wall of one end, close to the holder, of the hole is provided with a plurality of protrusions which are arranged in an annular array mode, and the protrusions extend into the grooves or are located on the outer side of the optical axis surface. When the protrusion is located on the outer side of the optical axis face, the gear shaft does not rotate when the sliding sleeve is rotated, and the advantage that when the rotating piece rotates selectively, the bracket is driven to move is achieved.

The utility model relates to the field of conveying belts, and discloses a conveying belt device which comprises a conveying support, a conveying belt, a driving rotating shaft and a driven rotating shaft, the conveying belt, the driving rotating shaft and the driven rotating shaft are arranged on the conveying support, the conveying belt is wound on the driving rotating shaft and the driven rotating shaft, and the driven rotating shaft comprises a rotating shaft body and a shaft face assembly arranged on the rotating shaft body. A central shaft is arranged on the rotating shaft body, the two ends of the central shaft are rotationally connected to the conveying support, a convex ring used for preventing materials from sliding to the conveying support is arranged on the outer circumference of the central shaft, and the rotating shaft body is gradually reduced from the axial center to the two ends of the rotating shaft body. And an axial surface distance is formed between every two adjacent arc panels. By means of the structure, the situation that the driven rotating shaft is prone to being stuck is avoided, meanwhile, the situation that materials adhere to the surface of the driven rotating shaft or the inner side face of the conveying belt is reduced, and therefore the stability and reliability of the conveying belt device are effectively improved.

The utility model discloses a shaft part extension supporting structure for a numerical control machine tool, which belongs to the technical field of numerical control machine tools, and is characterized by comprising a mounting frame, a plurality of groups of displacement components are slidably connected in the mounting frame, and the top of each displacement component is fixedly connected with a lifting component. Through sliding of the displacement block in the mounting frame, the position of the supporting frame in the transverse direction can be rapidly changed, so that personalized supporting layout can be conducted according to shaft workpieces of different lengths and different shapes, and the overall universality and applicability are effectively improved; the lifting assembly can achieve independent and high-precision height adjustment of each supporting frame, no matter shaft workpieces with special shapes such as stepped shafts with multiple steps or conical shafts are machined, the supporting frames can be tightly attached to the shaft faces by independently adjusting the heights of the supporting frames, stable and reliable supporting is provided, and the machining efficiency is improved. And the machining adaptability to shaft workpieces with complex shapes is obviously improved.

The utility model relates to the field of cutting and clamping equipment, in particular to cutting and clamping equipment using various special-shaped pipes, which comprises a machining table, rotating shafts are rotatably connected to the front and the back of the left side of the top of the machining table through bearings, connecting rings are bolted to the tops of the rotating shafts, driven gears are bolted to the lower portions of the surfaces of the rotating shafts, and the rotating shafts are connected with the driven gears through bearings. Rotating rods are rotationally connected to the front and back of the left side of the top of the machining table through bearings, driving gears are bolted to the surfaces of the rotating rods, servo motors are bolted to the front and back of the left side of the bottom of the machining table, the bottoms of the rotating rods penetrate through the machining table to be bolted to the output ends of the servo motors, and an electric cylinder is bolted to the right side of a connecting ring. Through the rotating shaft, the connecting shaft, the connecting ring, the driven gear, the rotating rod, the driving gear and the like, special-shaped pipes with different shapes and different bending degrees can be more flexibly and effectively fixed and clamped, and the using flexibility of the device is improved.

The utility model relates to a plate cutting machine consisting of a plurality of sections of short rails and a sucker, which comprises a longitudinal guide rail, the sucker and a cutting device, the longitudinal guide rail is a U-shaped groove bearing seamless sliding rail in the cutting device formed by butting and inserting the upper parts and the lower parts of the two sides of the end surfaces of the plurality of sections of short rails with the same or different lengths through optical shafts; and the middle of the multi-section short rail body is butted and inserted with the front surface and the back surface of the sucker. Compared with the prior art, the cutting device has the advantages that firstly, the cutting can be completed at one time through the cutting device no matter how long plates are, and the consistency of the sections of the cut plates is ensured; secondly, the upper and lower short rail surfaces are hooped to the axial surface of the U-shaped groove in the cutting device; and thirdly, the phenomena of line breakage and non-uniform cutting of the cutting line of the plate are avoided, and the phenomena of irregular sections, ceramic cracking or breakage of the plate when the plate is broken after being marked are avoided.

This invention provides a multi-wire cutting device and a method for improving the stability of the multi-wire cutting process. The method includes: a measurement step: installing a main roller onto a multi-wire cutting machine, such that at least two axial surfaces of the main roller respectively mate with the bearing surfaces in corresponding bearing housings to form a rotating pair, and measuring the wear state parameters of each axial surface; a temperature setting step: based on the relative differences in the wear state parameters of each axial surface, differentially setting the break-in target temperature for the corresponding bearing housing, so that the break-in target temperature for the bearing housing corresponding to the axial surface with poor wear is lower than the break-in target temperature for the bearing housing corresponding to the axial surface with good wear; a break-in step: with the cutting wire wound around the V-groove of the main roller to form a cutting wire mesh and the worktable not lowering, driving the main roller to drive the cutting wire mesh to circulate at high speed for a certain period of time, while controlling the temperature of each bearing housing at the break-in target temperature set based on the wear state parameters of each axial surface; keeping the bearing temperature at a suitable temperature, slowing down the rusting process, thereby extending the service life of the bearing surface and improving the stability of the multi-wire cutting process.

This utility model relates to a ceramic plate cutting machine track composed of multiple short rails and a suction cup. It includes a longitudinal guide rail and a suction cup. The longitudinal guide rail is formed by multiple short rail segments of the same or different lengths, which are inserted into the front and back of the suction cup. The sides of the short rail segments are inserted opposite each other. An optical axis is embedded in the upper top and lower bottom of the through grooves on both sides of the short rail segments, forming a longitudinal sliding track. Advantages: Compared with the prior art, this utility model achieves three advantages: First, it enables the one-time scoring and cutting of any length of plate material, ensuring the consistency of the cut surface. Second, it provides a clamping effect between the upper and lower short rails on the U-shaped groove shaft surface of the cutting device. Third, it not only ensures that the cutting line will not break or be uneven, but also prevents uneven cross-sections, chipping, or breakage when the plate is broken after scoring.

The utility model discloses polishing equipment for mechanical hardware machining, belongs to the technical field of mechanical hardware machining, and aims to solve the problems that the end surfaces and the peripheral surfaces of parts with the same size can only be independently ground and polished, so that the polishing efficiency of the parts is reduced. The device comprises a working table, a first motor is arranged on the surface of the bottom of the working table, a supporting table is arranged in the middle of the surface of the top of the working table, and the output end of the first motor penetrates through the working table and is fixed to the surface of the bottom of the supporting table; a part body is placed on the top surface of the supporting table, and a magnetic suction cup is installed at the position, located at the bottom of the part body, of the inner cavity face of the supporting table. According to the polishing device, polishing and grinding operation on the circumferential faces and the axial faces of various part bodies with different diameters and thicknesses can be conducted at the same time, and therefore the grinding efficiency of the polishing device is improved.

This utility model discloses an intelligent composite process flow rate threshold plunger. The spindle includes a shaft body, with an upper end and a lower end connected to the upper and lower ends respectively. Multiple axially extending sealing plates are arranged on the shaft surface. A buffer space is provided at the connection between the upper and lower ends and the shaft body, with both ends of the sealing plates extending into the buffer space. An elastic reset element is provided between each sealing plate and the shaft body. An axially extending sliding groove is provided at the end of the shaft body, with the opening of the sliding groove facing the lower end. An axially extending through hole is provided at the lower end, with the through hole having the same axis as the sliding groove and its diameter smaller than the groove width. A limiting rod slides within the through hole, with both ends of the limiting rod extending out of the through hole. A limiting head is provided at the upper end of the limiting rod, and an impact element is provided at the lower end. The limiting head slides against the groove wall of the sliding groove. A pressure detection device is provided between the limiting head and the bottom of the sliding groove to detect the pressure the impact element withstands when impacted. This solves the problem of difficult-to-control plunger running speed.

The invention discloses a signal amplification device and method for continuously measuring bending stress of a rotating shaft section. The device comprises a split type chuck assembly, a test rod and a signal acquisition module. The split type chuck assembly surrounds and is fixed on the periphery of a rotating shaft to be detected, and is provided with a mounting fulcrum along the axial direction; two ends of the test rod are fixed between the mounting fulcrums, form height difference with the surface of the rotating shaft and synchronously rotate; the signal acquisition module comprises a strain gauge arranged on the surface of the test rod, a wireless strain collector and a power supply unit. The test rod is erected on the rotating shaft, and tiny bending deformation of the rotating shaft is converted into large stretching or compression deformation on the test rod by utilizing the height difference between the rod surface and the shaft surface and a mechanical connection structure, so that a strain signal is effectively amplified, and the problems of insufficient sensitivity and signal distortion of large-scale shaft system low-strain measurement are solved; and meanwhile, the installation limitation of directly pasting the strain gauge on the shaft is avoided.

The utility model discloses a device capable of automatically adjusting the position of a part, which comprises a linear guide rail, and a Y-axis surface adjusting mechanism, an X-axis surface adjusting mechanism, a Z-axis surface adjusting mechanism and a blanking mechanism which are sequentially arranged on the linear guide rail, the sides, where the clamping jaws are located, of the Y-axis face adjusting mechanism, the X-axis face adjusting mechanism and the Z-axis face adjusting mechanism are correspondingly provided with bearing mechanisms, the bearing mechanisms bear parts, and the linear guide rails, the Y-axis face adjusting mechanism, the X-axis face adjusting mechanism, the Z-axis face adjusting mechanism, the discharging mechanism and the bearing mechanisms are all electrically connected with a PLC. According to the device, the position of the outer surface of the part with six regular planes is adjusted, and automatic control over part position adjustment is achieved.

The invention relates to a design method of a vane pump shaft surface streamline. The design method comprises the following steps: taking front and rear cover plate streamline data of an impeller shaft surface runner; determining each quasi-orthogonal line on the axial surface runner; determining an initial flow net; solving the axial surface flow velocity of each calculation point; checking the correctness of the flow net; and connecting the corresponding calculation points on each quasi-orthogonal line to obtain a streamline meeting the precision requirement. According to a differential equation that axial surface flow velocity is distributed along a quasi-orthogonal line, integration is carried out on each discrete point along the quasi-orthogonal line through flow, an integration value is compared with an accurate flow value, the position of each discrete point is corrected in a repeated iteration mode, and finally the accurate position of intersection of each streamline and the quasi-orthogonal line is obtained. And the streamline can be obtained by connecting the points with the same flow on the quasi-orthogonal lines. The problems that an existing vane pump vane axial surface streamline design method is poor in application, low in precision and high in time consumption are solved, and vane bone line design can be conveniently conducted through a point-by-point integration method.

The invention discloses a blade design method based on segmented curvature control and a runner designed thereof.The method comprises the steps that firstly, according to the extending direction of a blade, the position of a blade inlet is determined to be a first end, the position of a blade outlet is determined to be a second end, and a blade inlet angle is determined according to a speed triangle formed by the blade incoming flow speed and the blade circumferential speed; 2, according to the values of a front control point l1 and a rear control point l2 given by design requirements, the blade profile curvature k of a preset position on the blade axial surface streamline is determined; and 3, according to the blade profile curvature k determined in the step 2, determining the blade placement angle alpha of the position according to point-by-point integration. The blade of the rotating wheel is obtained through design of the method and comprises an inlet angle, an outlet angle and a molded line. Starting from controlling the blade profile curvature, the blade curvature is directly controlled so that the blade can be matched with a flow field, flow in a blade runner under the non-design working condition can be improved, and the wide working condition performance of the runner is improved.

The invention discloses a turning and milling machine tool Z-axis transmission structure, and relates to the technical field of turning and milling machine tools, the turning and milling machine tool Z-axis transmission structure comprises a Z-axis fixing seat, and a strip-shaped limiting frame, an adjusting frame and an extension plate which are arranged at the front end of the Z-axis fixing seat, and further comprises a Z-axis positioning mechanism which is fixedly arranged on the inner side of the adjusting frame and is used for adjusting and positioning a cutter in the Z-axis direction; and the driving conversion mechanism is fixedly arranged on the surface of the extension plate. A driving conversion mechanism and a cooling mechanism are arranged on the Z-axis surface of the turn-milling machine tool, an electric telescopic rod can be used for driving a U-shaped frame to move along an arc path, so that the position of a linkage gear is converted and adjusted, when the linkage gear is in meshing transmission with a first gear, a driving motor can be used for driving the linkage gear to rotate, and the cooling efficiency is improved. And then the first gear and the cutter mounting seat are driven to rotate, so that the cutter is driven to machine the workpiece.

An apparatus and method are provided for three dimensional cutting of a multi-axis feature into a workpiece that are at least partially characterized by a lack of rotationally symmetrical tools and an ability to produce high aspect ratio (depth to diameter) features using mechanical machining. The apparatus includes a base, a displaceable machine table supported on that base, a displaceable spindle supported on the base adjacent the machine table, a cutting tool held in a chuck carried on the spindle and a control module. The control module includes a controller and a plurality of actuators to provide precise displacement of the machine table, spindle, cutting tool and the workpiece for cutting multi-axis surface features into the workpiece.

The utility model relates to the technical field of dismounting tool, aims at solving the problem of the prior art that dismounting is complicated, easily leads to gland deformation or sealing groove damage, time -consuming and labor -intensive, easily causes sealed structure damage, operation space is limited and easily damages shaft surface or hole wall, provides a kind of pincer tool for dismounting shaft YX sealing ring gland, including first handle and second handle;First handle and second handle mutually symmetrical distribution, first handle and second handle have first dog and second dog respectively in the same end, first dog and second dog mutually away and symmetrical distribution;First handle and second handle are mutually hinged connection.The utility model has the beneficial effects that simple structure, simple operation, time -saving and labor -saving, not easily leading to gland deformation or sealing groove damage, low maintenance cost, operation space is not limited and avoids damaging shaft surface or hole wall.

A braking assembly (100) for a wheel (W) is described. The braking assembly (100) comprises at least a first brake disc (102) having a central axis (x1) and arranged to be coupled to a first side (S1) of the wheel. The first brake disc (102) comprises a wheel coupling face (104) and defines at least one through-hole (106) along an axis (x2) parallel to the central axis (x1) of the first brake disc (102). The at least one through-hole (106) defined by the first brake disc (102) defines at least one inner portion (108) concave toward the axis (x2) along which the through-hole (106) is defined and having a decreasing diameter toward the wheel coupling face (104). The braking assembly (100) further comprises at least one fastening means (110) comprising a first convex portion (112), complementary to the concave inner portion (108) defined by the through-hole (106) of the first brake disc (102). At least part of the first convex portion (112) of the fastening means (110) is arranged to abut against at least part of the concave inner portion (108) defined by the through-hole (106) of the first brake disc (102), when the first brake disc (102) is coupled to the first side (S1) of the wheel. A wheel, a brake disc and a further braking assembly are also described.