57results about How to "Reduce clamping deformation" patented technology

The invention discloses a hydraulic automatic clamp for turning a motor shell. The hydraulic automatic clamp comprises a hollow clamp body. A packing is installed on one side of the clamp body and provided with a packing conical hole matched with the outer diameter of a main shaft. The other side of the clamp body is provided with a blind flange. The blind flange is provided with a rotatable clamping mechanism. The clamping mechanism is connected with a pull rod. One end of the pull rod penetrates out of the packing conical hole. The pull rod is driven by a hydraulic rotating oil cylinder and matched with a main shaft conical hole. Under the drive of the pull rod, the clamping mechanism can rotate and clamp and fix the motor shell. The motor shell is clamped and fixed in a hydraulic automatic clamping mode, clamping is convenient, the clamping efficiency is high, the clamping rigidity is high, the clamping force is stable and adjustable, clamping deformation can be greatly reduced, the motor shell machining precision is improved, the cylindricity of 0.005 mm of a bearing housing can be ensured, the motor shell machining quality is improved, the cost is reduced, and benefits are improved.

The invention discloses an active processing method for clamping deformation of thin-walled special-shaped parts. First, the clamping force of the thin-walled workpiece is optimally set, and then the range of the force point of the workpiece is found out, and then the workpiece is supported auxiliaryally, and finally the compensation is performed. The data is imported into the CNC program. Compared with the prior art, the active machining method for clamping and deformation of thin-walled special-shaped parts can be analyzed before numerical control machining of thin-walled parts to determine the magnitude of the clamping force, identify the clamping point and the support point of the workpiece, Using increasing and decreasing tool compensation, the clamping of the workpiece is stabilized, the cutting deformation of the workpiece is reduced, and the accuracy is further improved.

The invention discloses a processing method of an aluminum alloy thin-wall cylindrical part. The method comprises the following steps of blanking, tool selection, rough machining, excircle semi-finish machining, aging treatment, internal-hole semi-finish machining, internal-hole finish machining, excircle finish machining and the like. According to the method, as a special clamp is adopted to guarantee clamping precision, the clamping deformation is reduced and the internal stress of part processing is eliminated; moreover, the method is simple to operate; for a workpiece, procedures of keeping a technological chuck and removing the technological chuck are omitted, so that the material and the processing time are saved; meanwhile, the aluminum alloy thin-wall cylindrical part processed by using the method is stable in quality, low in processing cost and high in efficiency; in addition, the influence that a product generates deformation due to directly suffering three-point clamping force can also be avoided, the rotation heat stress deformation and the pressure damage can be reduced, the flexible deformation of the tools can be reduced, the raw material consumption of the product can be reduced, and the qualification rate and the production efficiency of the workpiece can be improved; moreover, the processing cost can be lowered.

The invention discloses a magnetic clamp adopting cladding type clamping, which comprises an outer cover cylinder with a closed bottom, a workpiece tray, a steel ball receiving groove, a circular partition, a first electromagnet, an electromagnetic oscillator, a steel ball circulation pump, The pump drives the motor and the feeding pipe. The outer cover cylinder is provided with an inner cylinder edge. The first electromagnet is fixed in the middle of the steel ball receiving groove through a magnet shield. The workpiece tray is fixed on the magnet shield. The bottom of the workpiece tray is provided with The backflow hole, the upper end of the ring wall of the workpiece tray is provided with scattered holes at intervals, the outer wall of the workpiece tray is also provided with a control valve, and a ring is formed between the ring partition, the outer wall of the workpiece tray, the inner wall of the outer cover cylinder and the edge of the inner cylinder. The dispersing chamber is connected with the dispersing hole, the dispersing hole is connected with the dispersing chamber, one end of the feeding pipe is connected with the steel ball circulating pump, and the other end of the feeding pipe is connected with the dispersing chamber; the present invention can make the magnetic clamp adaptable to the magnetic workpiece, and It can adapt to non-magnetic workpieces, greatly expands the application range, and improves the efficiency of clamping work.

The invention discloses a hydraulic control tooth type transmission clamp. The clamp comprises a base; a positioning ring is fixed to the base; an ejecting block is automatically expanded through a hydraulic control system; the hydraulic control system comprises a basic double-action cylinder, a first pulley and a cam; a piston of the basic double-action cylinder pushes a supporting block; the supporting block pushes the first pulley to drive the cam to rotate; a notch of the cam is connected with a second pulley in an abutting manner; and the second pulley is connected with a rotating shaft on the ejecting block through a shaft. The clamp further comprises linear pressing plate oil cylinders uniformly distributed along the circumference of a workpiece; oil inlet and outlet pipe pressing plate oil cylinder pressing oil pipes and pressing plate releasing oil pipes of the linear pressing plate oil cylinders are installed at the bottom of the base; and energy accumulators for pressure compensation are installed on the oil inlet and outlet pipe pressing plate oil cylinder pressing oil pipes, and the part pressing process is completed through pressure adjustment. The hydraulic control tooth type transmission clamp has the beneficial effects that a hydraulic control tool is adopted to guarantee gapless positioning of a part, the positioning precision of the part is improved, a hydraulic clamping mechanism can guarantee that the pressing force of the part is uniform, clamping deformation of the part is reduced, and the machining precision of the part is ensured.

The invention relates to a milling and clamping device for disc type thin-wall parts. The milling and clamping device comprises a base body, a back hat and two screws, wherein one end of the base body is in threaded connection with the back hat, and the screws are screwed into two threaded holes of the back hat to abut on the base body. The milling and clamping device has the advantages of small clamping deformation, reliable performance, low cost, convenient in assembly and disassembly, increases the milling efficiency, and is suitable for difficult-clamping and mass-produced the disc type thin-wall parts.

The invention discloses a reverse-pull type fixture device for processing a thin-walled gearbox case, comprising a fixed installation base plate, at least four steel ball locking hydraulic cylinders are installed on the top surface of the fixed installation base plate, and the to-be-machined Connection screw holes are formed on the bottom surfaces of the four side plates of the thin-walled gearbox case. It installs the traction bolt on the bottom surface of the thin-walled gearbox case, inserts the traction bolt into the top middle hole of the steel ball locking hydraulic cylinder, and pulls the traction bolt downward through the steel ball locking hydraulic cylinder to realize reverse operation. Pull-type fixing, the thin-walled gearbox case is fixed, and the fixed tension point and the support point are the same point, thereby reducing the clamping deformation of the thin-walled gearbox, and increasing the processing convenience. The finishing of all the precision elements of the thin-walled gearbox case ensures the machining accuracy of the thin-walled gearbox, and there are no parts that interfere with the machining of the tool during processing around the thin-walled gearbox, which is convenient for machining.