The invention belongs to the technical field of thin-wall housing machining, and particularly relates to an anti-deformation device for a major-diameter thin-wall housing welding boss. The anti-deformation device comprises a supporting ring, locating shafts and glands; the diameter of the external cylindrical surface of the supporting ring is the same as the internal diameter of a housing; the supporting ring is used for the location of the lower end faces of T-shaped blocks; holes having the same center lines as holes in which bosses are mounted are formed in the supporting ring; the locatingshafts are used for the location of the supporting ring through the holes in the supporting ring; the glands are arranged at the upper ends of the locating shafts and used for the location of the upper end faces of the T-shaped blocks; and supporting devices are arranged at the other ends of the locating shafts. The problem that the welding deformation quantity is not easy to control when nonuniform bosses are welded at the major-diameter thin-wall housing is solved, the component deformation amount when the nonuniform bosses are welded at the housing is controlled within a tolerance range, and the process specification requirement is met. The anti-deformation device is novel and light in structure, reliable in location, convenient and flexible to operate and convenient for manufacture.

Anti-deformation device for major-diameter thin-wall housing welding boss

The invention discloses a device for clamping, picking and installing an inner corner armor of a steel coil, and belongs to the technical field of industrial robots. The device comprises a driving motor, a motor installing plate, a coupling, a lead screw, a lead screw nut, a clamping jaw supporting frame supporting plate, a U-shaped vertical plate, a bearing seat assembly, clamping jaw mechanisms,clamping jaw supporting frames, nuts, wedge block pushing rods, first spring assemblies, second spring assemblies, wedge blocks, first sliding blocks, second sliding blocks, pushing plates, first clamping fingers, second clamping fingers, clamping jaw box bodies and an aluminium profile installing frame. The operating principles of the device are that power is sequentially transmitted to the leadscrew nut, the clamping jaw supporting frame supporting plate and the clamping jaw supporting frames through the coupling and the lead screw when the driving motor rotates, the wedge blocks are driven to move forwards or backwards under the action of elastic force of the first spring assemblies and the second spring assemblies of the wedge block pushing rods, and thus the first clamping fingers and the second clamping fingers are driven to clamp, pick and push the inner corner armor of the steel coil through swallow-tail type guide rails. The device for clamping, picking and installing the inner corner armor of the steel coil can be applied to the installing process of the inner corner armor of the steel coil.

Device for clamping, picking and installing inner corner armor of steel coil

The invention discloses a deformation prevention tool for a large round workpiece. The deformation prevention tool comprises the round workpiece, a retaining ring and multiple supporting columns. The supporting columns are composed of arc steel plates, steel pipes, round steel plates and studs through welding, wherein the sizes and the lengths of the steel pipes and the studs are adaptive to the inner diameter of the round workpiece. The arc steel plates are welded to one ends of the steel pipes, and the round steel plates are welded to the other ends of the steel pipes. The studs are welded to the round steel plates. The retaining ring is formed by welding a ring bottom steel plate and a steel plate ring, and multiple bolt holes are evenly formed in the steel plate ring. The two ends of each supporting column are connected with the round workpiece and the retaining ring respectively, wherein the arc steel plate end of each supporting column abuts against the inner wall of the round workpiece. The studs are connected to the retaining ring through the bolt holes and nuts. The supporting columns are evenly distributed in the whole circumference. According to the deformation prevention tool, the supporting columns are connected with the retaining ring, the roundness requirements for the round workpiece can be met by adjusting the lengths of the supporting columns, the supporting columns can be used repeatedly, and the deformation prevention tool has the advantages of being simple in structure, low in cost and easy to achieve.

Deformation prevention tool for large round workpiece

Provided is a deformation-preventing supporting device of a slewing bearing, wherein a great deformation circumstance of a thin-wall slewing bearing is avoided in lifting, transporting and storing process, and installation and use of the slewing bearing can be guaranteed. The deformation-preventing supporting device includes a top cover, a chassis, connecting blocks, extending arms, female thread blocks, locking nuts, bolts and jack catches; the circular top cover and the chassis are concentrically and parallelly arranged; at least three connecting blocks are uniformly distributed between the top cover and the chassis and radially disposed; the extending arms are disposed on outer ends of the connecting blocks; the female thread blocks are disposed on the outer ends of the extending arms; the locking nuts are disposed on outer sides of the female thread blocks; the bolts are disposed in the locking nuts; the jack catches are disposed on the outer ends of the bolts; and rubber layers are disposed on surfaces of the jack catches. The deformation-preventing supporting device has simple structure, convenience in operation and high stability; and a force applied to supporting of a thin-wall bearing is moderate and uniform so as to guarantee installation and use of the slewing bearing.

Bin Xue

Papers

Deformation-preventing supporting device of slewing bearing