65results about How to "Change contact position" patented technology

The invention provides a turning, grinding and polishing all-in-one machine device for a rubber roller. By the adoption of the turning, grinding and polishing all-in-one machine device for the rubber roller, turning, grinding through a grinding wheel and polishing through an abrasive belt can be achieved at the same time. According to the turning, grinding and polishing all-in-one machine device for the rubber roller, a turning machine, a grinding machine and a polishing device for the rubber roller are highly integrated, and new functions are additionally achieved based on the grinding machine special for the rubber roller. A power machine head used for making a workpiece rotate is installed at one end of a machine body, and a machine tail is installed at the other end of the machine body; a spindle is arranged on the machine head; one end of the spindle is connected with a chuck, and the other end of the spindle is connected with a power device; a center used for fixing the workpiece is arranged on the machine tail, and the spindle of the machine head and the center of the machine tail are located on the same center line; a measurement device is installed on the upper surface of the machine body; and an annular abrasive belt driving and tensioning device is installed on a workbench. A whole annular abrasive belt can rotate around the axis of a driving wheel, so that the contact angle between the abrasive belt and the workpiece is changed, and accordingly the position, making contact with the workpiece, of the abrasive belt is changed, and different machining requirements are met.

The invention discloses an operation table for cutting a hardware pipe fitting. The table comprises a supporting platform, wherein the supporting platform is provided with a bracket and a lifting frame, the bracket is provided with a mounting plate, the mounting plate is provided with a rotating air cylinder, a rotating disc and fixed guide rails, the rotating air cylinder is connected with the rotating disc, and the fixed guide rails are distributed around the center of the rotating disc; the fixed guide rails are slidably connected with guide blocks, wherein the portion between each guide block and the rotating disc is connected with a corresponding transmission rod, each transmission rod is connected with the eccentric position of the rotating disc, and the fixed guide rails are provided with arc-shaped clamping plates; the center of the rotating disc is provided with a fixed rod, wherein one end of the fixed rod is provided with a positioning disc, elastic seats are distributed around the positioning disc, and each elastic seat is provided with a corresponding arc-shaped pressing plate; and the lifting frame is close to the positioning disc, wherein the top end of the lifting frame is provided with an arc-shaped supporting plate. The operation table for the cutting hardware pipe fitting has the advantages of being novel in structure, suitable for cutting operation of hardware pipe fittings of different pipe diameters, wide in applicable range, and stable and reliable in placement, and accordingly cutting quality can be improved.

The invention discloses a rubber roller belt sander, wherein a long strip-shaped support frame is positioned on a base; a driving wheel can be rotationally positioned at one end of the support frame; a driven wheel can be rotationally positioned at the other end of the support frame; the driving wheel and the driven wheel are arrayed in parallel; a ring-shaped abrasive belt is arranged on the driving wheel and the driven wheel in a sleeving manner; the driving wheel is driven by a motor to rotate; a driven shaft on the driven wheel is inserted in a shaft sleeve at the other end of the support frame; and the driven shaft can be driven by a deviation rectifying adjusting device on the shaft sleeve to rotate around a shaft perpendicular to the axial direction of the driven shaft and the length direction of the ring-shaped abrasive belt. According to the rubber roller belt sander, an adjustment of the axis parallelism of the driving wheel and the driven wheel can be realized, so that the stability of the operation of the abrasive belt can be realized; the tension adjustment of the ring-shaped abrasive belt is convenient, so that the ring-shaped abrasive belt can be adapted to processing of different materials, and the replacement of the ring-shaped abrasive belt is facilitated, the rotation of the whole ring-shaped abrasive belt around an axial line of the driving wheel can be realized, the contact angle of the abrasive belt and a workpiece can be changed, the contact position of the abrasive belt and the workpiece can be changed, and different processing demands can be met.

The invention discloses an artwork display device with timing and charging functions, relates to the technical field of art display, and aims to solve a safety problem. The device specifically comprises a base, a friction transmission mechanism is arranged on the outer wall of the top of the base, a planetary gear mechanism is fixed to the outer wall of the top of the base through supporting legs,a lifting mechanism is arranged on the outer wall of the top of the planetary gear mechanism, and the friction transmission mechanism comprises a friction transmission assembly, a transmission ratioadjusting assembly and a critical pressure adjusting assembly; the friction transmission assembly comprises a friction disc and a friction wheel, and the friction disc is in power connection with theplanetary gear mechanism. When displayed artworks or other parts are touched, twined and other unsafe conditions occur, due to the fact that transmission is established between the friction disc and the friction wheel through the friction force, the transmission torque is the friction force, the rotation resistance is larger than the friction force at the moment, slipping and power interruption occur at the power connection position, and safety is guaranteed.

The invention provides a novel tire press-fit machine. According to an auxiliary press-fit mechanism, multiple connecting shafts are arranged between a first disc and a second disc, the connecting shafts are evenly arranged in the peripheries of the first disc and the second disc, first springs are arranged between the first disc and the second disc in a sleeving mode, and the connecting shafts penetrate out of the upper portion of the first disc to be fixed on a rack; a press-fit angle adjusting block is arranged in the middle of the first disc and the second disc, the upper portion of the press-fit angle adjusting block is connected with an adjusting driving system, and the press-fit angle adjusting block downwards penetrates out of the second disc to extend to form a press head; a connecting arm is correspondingly arranged on the portion, below the second disc, of each connecting shaft, each connecting arm is movably connected with a press-fit block through a rotating shaft, the multiple press-fit blocks correspond to the press head of the press-fit angle adjusting block, and the press-fit angle adjusting block moves up and down to drive the press-fit blocks tighten or loosen. According to the novel tire press-fit machine, adjustment is convenient and rapid, the press-fit mode is more reasonable, and the press-fit success rate and the efficiency are high; the press-fit synchronism is good, press-fit eccentric load cannot be caused, and the safety is good.

The invention discloses a heat treatment machining device for hot work die steel. The heat treatment machining device comprises a shell, a packing door, a rotating platform, a platform rotation driving part, at least one fixing assembly, an overturning assembly and a clamping and rotating assembly, wherein a cavity is formed in the shell; the rotating platform is arranged in the cavity; the packing door is located above the rotating platform, one part of the packing door is arranged in the cavity, the rest part of the packing door extends out of the shell, and the packing door can divide the cavity into a heat treatment cavity and a cooling cavity and can reciprocate in the cavity; the platform rotation driving part is connected with the rotating platform through a rotating connecting part, so as to drive the rotating platform to rotate; the fixing assemblies are arranged on the rotating platform, so that the hot work die steel can be installed; the overturning assembly is arranged on the packing door and extends into the cooling cavity; and the clamping and rotating assembly is arranged on the shell. According to the device, the problem that in the prior art, die steel cracks after being treated by a heat treatment machining device is solved.

The invention relates to an adjustable transformer, which comprises a housing and an annular core and further comprises a carbon brush and an adjusting device. According to the adjustable transformerof the invention, the adjusting device drives the carbon brush to rotate in the circumferential direction and adjusts the position of the brush head in the radial direction; the reciprocating frictionbetween the brush head and a winding of the annular core on the same circular trajectory is avoided so as to prevent the damage of the winding of the annular core; the moving direction of a sliding brush rod can also be switched so as to enable the brush head to have two moving modes such as expansion and relaxation in the radial direction, and the brush head is enabled to be continuously used; the moving speed of the brush head is very slow, so that it is unnecessary to manually change the moving direction of the sliding brush rod for many times; and the moving speed of the sliding brush rodcan also be adjusted.

The invention discloses a grinding and polishing clamp for stainless steel part machining and a machining technology of the grinding and polishing clamp. The grinding and polishing clamp comprises a base, a mounting seat is slidably mounted in the middle of the upper end of the base, a lifting supporting column is slidably mounted at the upper end of the mounting seat, and a grinding and polishing assembly is fixedly mounted on the upper portion of the rear end of the lifting supporting column. Two stand columns and a driving motor are fixedly installed on the left portion of the upper end of the base, the upper portions of the opposite faces of the two stand columns are jointly and rotationally connected with a shaft rod, and the right end of the shaft rod penetrates through the stand column located on the right side, extends to the right side of the stand column, and a clamping device is fixedly installed at the right end of the shaft rod. According to the grinding and polishing clamp for stainless steel part machining and the machining technology of the grinding and polishing clamp, the automation degree is high, the working efficiency is high, the utilization rate of a grinding abrasive belt and the overall grinding and polishing quality are improved, and the machining yield is improved to a certain degree; and potential safety hazards caused by the fact that stainless steel pipes are not clamped and fly out in the rotating process due to misoperation can be avoided, and safety is high.

The invention discloses an inlet guide plate with a guide wheel for strip steel rolling, coiling and finishing equipment. The inlet guide plate comprises guide plates (10) arranged at both sides of strip steel (1) and used for guiding the operation of the strip steel (1), and guide wheels (3) arranged on the guide plates. The guide wheels (3) are inclined relative to the guide plates (10), namely an included angle (a) of 0-30 DEG is formed between a direction of a circumferential speed of the guide wheels and a forward direction of the strip steel (1). Each guide wheel (3) can move along an axis direction thereof, and a height of the guide wheel can be adjusted. Because the contact of the inclined guide wheels (3) and the strip steel (1) is changed from circumference to ellipse, the linear contact becomes longer, so that a rotating speed of the guide wheels (3) is reduced as compared to a vertical manner, thus the service life of the guide wheels (3) is greatly prolonged, the strip steel (1) is prevented from warping, and leading-in of the strip steel (1) is improved; meanwhile, because a downward component velocity has certain grinding effect on the side part of the strip steel (1), the quality of the side part of the strip steel (1) is improved, and the yield of the strip steel (1) is improved.

The invention relates to the technical field of cylinder cover detection, in particular to a cylinder cover leakage visual detection device which comprises a bottom supporting plate, a guide supporting frame, a cylinder cover sealing limiting component, a cylinder cover leakage detection component and the like. A guide supporting frame is fixedly installed on the top face of the bottom supporting plate, the air cylinder cover sealing limiting component is arranged on the guide supporting frame, and an air cylinder cover leakage detecting component is fixedly installed on the top face of the bottom supporting plate. High-pressure gas is conveyed into the cylinder cover, so that the high-pressure gas pushes all the movable pipes and the rolling balls to move upwards, a worker can judge whether the cylinder cover leaks gas or not by observing whether the height positions of the rolling balls are consistent or not, then the gas tightness of the cylinder cover is judged, and meanwhile the specific position of a leakage point can be deduced according to the position of the rolling ball.

The invention discloses a stepless speed change device to solve the problem that gear transmission of the prior art cannot achieve stepless speed change. The stepless speed change device includes a rack, a driving shaft, a driven shaft perpendicular to the driving shaft, a drive block which is installed between the drive shaft and the driven shaft, a worm gear which is rotationally connected to the drive shaft and a worm which meshes with the worm gear. The drive block includes a first bevel gear and a hemisphere block which are fixed together, the drive shaft is provided with a second bevel gear which engages with the first bevel gear, and the driven shaft is provided with a disk which is matched with the hemisphere block. Half of the worm gear is smooth, another half of the worm gear is provided with a worm teeth part with worm tooth. The smooth part is provided with a fixed rod, the drive block and the fixed rod are rotatably connected with each other, and the smooth part and end face of the worm teeth part are both provided with a bumping and a slot both in the shape of an inverted cone. The stepless speed change device is simple in structure and capable of achieving stepless speed change.

The invention discloses a uniform gas supply device for a vapor deposition furnace, and the vapor deposition furnace. The uniform gas supply device for the vapor deposition furnace comprises one or more T-shaped gas uniformizing pipelines, and the directions of gas outlet holes of the gas uniformizing pipelines are opposite to the ascending direction of reactive gas, and the gas outlet holes are back on to workpieces. According to the uniform gas supply device for the vapor deposition furnace, design is ingenious, by setting the directions of the gas outlet holes, the reactive gas can be gradually spread to the workpiece area after flowing out, the problems that when one gas outlet supplies gas to the workpieces directly, gas flow impact is prone to being caused, the reactive gas is proneto being concentrated in a certain area, and consequently the reactive gas is distributed nonuniformly are avoided, the supplying uniformity of the reactive gas can be ensured, and the quality of filmdeposition is improved advantageously.

The invention relates to the technical field of lifeboats, and discloses a lifeboat capable of improving rescue efficiency, the lifeboat comprises a boat body, the inner wall of the boat body is movably connected with a piston, the outer side of the piston is fixedly connected with a web member, and the inner wall of the boat body is fixedly connected with a fixed shaft; and a leather ring is movably connected to the position, close to the outer side of the fixing shaft, of the inner wall of the ship body, a magnetic block is fixedly connected to the inner wall of the leather ring, and a connecting block is fixedly connected to the outer side of the fixing shaft. According to the lifeboat capable of improving the rescue efficiency, by changing the resistance value of a slide rheostat, when a drowning person boards the lifeboat, influence of acting force on the lifeboat body is avoided, the gravity center of the lifeboat body is prevented from changing, the lifeboat body is prevented from shaking, the lifeboat body is prevented from inclining, and the safety coefficient of workers on the lifeboat is improved; the drowning person can be attached to the surface of the lifeboat conveniently, rescue time is shortened, life safety of the drowning person is guaranteed, and rescue efficiency of the lifeboat is improved.