A non-contact and optical measuring automation system, configured to electrically connect to a computer to measure the profile accuracy of a disk cam, includes a base, a rotating chuck, a moving stage module and a laser displacement meter. The rotating chuck is disposed for clamping the disk cam. The moving stage module includes a first linear motion stage movable relative to the base in a first direction and a second linear motion stage movable relative to the first linear motion stage in a second direction. The computer is able to control the rotation of the rotating chuck and the movement of the moving stage module, and is able to control a beam emitted from the laser displacement meter projecting onto a profile surface of the disk cam so as to obtain a profile deviation value of the disk cam by using the laser triangulation method.

A cam assembly having a solid cylindrical with a near end and a distal end and an opening extending from the near end through the distal end, wherein the opening is circular in configuration and has an inset, the near end is configured at a slight angle of less than about 15 from the vertical, and the opening extending from the near end through the distal end is angled through the cam assembly, the opening beginning at the near end and near a bottom edge of the solid cylinder and terminating through the distal end near a top edge of the solid cylinder.

A cam assembly having a solid cylindrical with a near end and a distal end and an opening extending from the near end through the distal end, wherein the opening is circular in configuration and has an inset, the near end is configured at a slight angle of less than about 15 from the vertical, and the opening extending from the near end through the distal end is angled through the cam assembly, the opening beginning at the near end and near a bottom edge of the solid cylinder and terminating through the distal end near a top edge of the solid cylinder.

A device for forming circumferential grooves in pipe elements uses multiple geared cam bodies mounted on a carriage which rotates about a fixed pinion. The gears engage with the pinion which causes the geared cam bodies to rotate relative to the carriage. Traction surfaces and cam surfaces on the cam bodies traverse the outer surface of the pipe element and impress a circumferential groove therein. Each cam surface has a region of increasing radius and may have a region of constant radius. Second cam surfaces, positioned in spaced relation axially to the first cam surfaces, may also extend around the cam bodies. The second cam surfaces have a constant radius and limit flare of the pipe element.

A device for forming circumferential grooves in pipe elements uses multiple geared cam bodies mounted on a carriage which rotates about a fixed pinion. The gears engage with the pinion which causes the geared cam bodies to rotate relative to the carriage. Traction surfaces and cam surfaces on the cam bodies traverse the outer surface of the pipe element and impress a circumferential groove therein. Each cam surface has a region of increasing radius and may have a region of constant radius. Second cam surfaces, positioned in spaced relation axially to the first cam surfaces, may also extend around the cam bodies. The second cam surfaces have a constant radius and limit flare of the pipe element.

A non-contact and optical measuring automation system includes a base, a rotating chuck to clamp a disk cam, a moving stage module and an optical measuring module. The moving stage module includes a first linear motion stage movably disposed on the base, a second linear motion stage movably disposed on the first linear motion stage, and a rotary motion stage rotatably disposed on the second linear motion stage. The optical measuring module disposed on the rotary motion stage includes a laser-emitting unit and an image-capturing unit. The laser-emitting unit projects a light beam onto a cam surface of the disk cam, and the image-capturing unit receives scattering light to capture a grayscale measuring image including a profile speckle pattern. A computer calculates a profile speckle characteristic value according to the grayscale measuring image and the surface roughness value according to the profile speckle characteristic value.

A non-contact and optical measuring automation system includes a base, a rotating chuck to clamp a disk cam, a moving stage module and an optical measuring module. The moving stage module includes a first linear motion stage movably disposed on the base, a second linear motion stage movably disposed on the first linear motion stage, and a rotary motion stage rotatably disposed on the second linear motion stage. The optical measuring module disposed on the rotary motion stage includes a laser-emitting unit and an image-capturing unit. The laser-emitting unit projects a light beam onto a cam surface of the disk cam, and the image-capturing unit receives scattering light to capture a grayscale measuring image including a profile speckle pattern. A computer calculates a profile speckle characteristic value according to the grayscale measuring image and the surface roughness value according to the profile speckle characteristic value.

A welding clamping device includes a base plate and two positioning slide blocks, each of the positioning slide blocks includes a slide base and a cam, wherein the slide base includes a support plate and two cam holders fixed at two opposite ends of the support plate; the cam is rotatably mounted between the two cam holders via a camshaft for press-fitting a workpiece to be welded; and the base plate is provided with a slide slot, and the two positioning slide blocks are relatively slidably mounted in the slide slot. The device can better position a workpiece to be welded, improving welding quality; and clamping and unloading are easy and take a short time, improving welding efficiency.

A device for cold working pipe elements has two or more cams, each having a gear which meshes with a pinion to turn all of the cams. Each cam has a cam surface with a region of increasing radius and may have a region of constant radius extending around a cam body. Each cam also has a traction surface extending around a cam body. A discontinuity in each cam surface is aligned with a gap in the traction surface of each cam. The discontinuities and gaps provide clearance for insertion and removal of the pipe element between the cams to form a circumferential groove when the cams are rotated. A cup adjacent the pinion is movable along the pinion axis to engage and disengage from a stop surface on one of the cams. Engagement between the cup and a stop surface prevents rotation of the cam.

A guide cam device includes a cam groove, a projection, and a restriction member. The cam groove includes: first, second, and third grooves, the second and third grooves branching forward from the first groove; and a locking recess positioned between a forward end of the second groove and a forward end of the third groove. The projection is configured to move forward and backward in the cam groove and enter a locked state upon entering the locking recess. The restriction member is configured to inhibit entry of the projection from the first groove to the third groove and permit the projection to advance from the first groove to the second groove. In response to being pushed by the projection that exits the locking recess and moves backward in the third groove, the restriction member is deformed or moved to enable the projection to move to the first groove.