47results about How to "Avoid flanging" patented technology

The invention relates to a pressing device for automatically pressing a cover plate. The pressing device is arranged beside a motor conveying device and comprises a positioning mechanism fixedly arranged on a working table and close to the motor conveying device, a movable material taking mechanism and a movable pressing mechanism, wherein the material taking mechanism can move to the upper part of the positioning mechanism and is used for placing a sucked cover plate to be pressed onto the positioning mechanism; the cover plate to be pressed is centered through the positioning mechanism; thepressing mechanism can move to the upper part of the positioning mechanism and sucks the centered cover plate to be pressed; and then the pressing mechanism further moves to the upper part of the motor conveying device so as to press the cover plate to be pressed into a seal groove of a motor gear box corresponding to the motor conveying device. According to the pressing device provided by the invention, the cover plate can be full-automatically pressed, so that the manpower is saved, and the production efficiency is improved.

The invention discloses an automobile gear drilling device, which comprises a machine tool table, including a bottom plate, a support seat, a positioning shaft, a lock nut, a positioning block, a cylinder, a push rod, and a quick-change drill sleeve. Compared with the prior art, This kind of automotive gear deburring device adjusts the positioning shaft and positioning block, locks the positioning shaft with a lock nut, and then positions the workpiece on the positioning shaft and positioning block, so as to carry out drilling processing, and the hole is almost drilled through. When the air cylinder is ventilated, the ejector rod is pushed upward, so that the generated burr is upward, so as to avoid the burr in the inner hole of the workpiece assembly, so that the assembly of the workpiece is not affected.

The invention relates to the field of automobiles and particularly provides a forming die and a forming method of an automobile control arm semicircle area negative corner. The forming die comprises a first die body, a second die body and a third die body; and the forming die is characterized in that the first die body is composed of a first die material-pressing plate, a first die flanging insert and a first die lower die body, the first die material-pressing plate is arranged above the first die lower die body, the position, located on the right side of the first die material-pressing plate, of the first die lower die body is provided with the first die flanging insert, and the bottom of the right side of the first die flanging insert is exposed out of the right side of the first die lower die body. Compared with the prior art, machining is convenient, and the light weight target of a control arm with a negative corner structure is achieved; and complex forming and flanging can be effectively avoided, and the production and manufacturing cost is lowered.

The invention provides an inner pot and an electric pressure cooker. The inner pot comprises a body (1) and a lifting handle (2) arranged on the periphery of the body (1). An installation groove (3) is formed between the lifting handle (2) and the periphery of the body (1). The inner pot helps solve the problem in the prior art that that poor strength of the structure of an outer pot is caused due to a gap in the outer pot for the lifting handle.

The invention discloses a split-type crankshaft additional gear transmission structure. The transmission structure comprises a crankshaft flywheel end, a flywheel shell gear case, an oil seal and a crankshaft additional gear, wherein the oil seal is provided with a sealing lip which extends along the axial direction of a shaft hole; the oil seal is in press fit in a flywheel shell oil seal assembly hole of the flywheel shell gear box; the crankshaft additional gear is of a split structure, and comprises a cushion block and a crankshaft gear; the periphery of the cushion block serves as an oil seal assembly surface, and is used for forming a sealing surface with the oil seal; one side of the cushion block is a crankshaft flywheel end assembly surface, and the other side is a crankshaft gear assembly surface, and is provided with a step positioning seam allowance which is matched and assembled with the crankshaft gear; and the crankshaft gear is provided with a step head which is matched with the step positioning seam allowance. According to the split-type crankshaft additional gear transmission structure, a split-type crankshaft additional gear is adopted, so that the stressed direction of assembly of the oil seal is consistent with the direction of the lip, and therefore turning up of the oil seal during assembly can be prevented; and meanwhile, the assembly quality can be observed, and the process control quality is improved.

The invention relates to an assembly device for a valve core gray ring of an air control valve, comprising a guide sleeve and a push sleeve; the guide sleeve includes an outer wall and an inner wall, the lower part of the outer wall of the guide sleeve is a cylindrical surface, and the upper part of the outer wall of the guide sleeve is Conical surface, and a smooth transition between the cylindrical surface and the conical surface, the inner wall of the guide sleeve is provided with a shoulder, the diameter of the inner wall below the shoulder is not less than the maximum outer diameter of the valve core, and the diameter of the inner wall above the shoulder is smaller than the maximum outer diameter of the valve core; The tetrafluoroethylene ring is set on the upper end of the outer wall of the guide sleeve; the inner diameter of the lower part of the push sleeve is not smaller than the inner diameter of the polytetrafluoroethylene ring, and the lower part of the push sleeve divides the push sleeve into multiple parts in the circumferential direction by setting multiple gaps along the circumference. For the petal body, the inner wall of the lower edge of the plurality of petal bodies is provided with recesses along the circumference, and the upper and lower ends and top corners of the recesses are rounded at three places in total. The invention completes the installation of the polytetrafluoroethylene ring through the cooperation of the guide sleeve and the push sleeve, which reduces the workload of the assembly personnel and avoids the damage to the hands compared with the pure manual assembly method.

The invention discloses a scrap-free cutting machine for PVC (polyvinyl chloride) tubes. The scrap-free cutting machine comprises a frame. A driving motor, a clamping device and a cutting device are arranged on the frame. By the scrap-free cutting machine, costs of clamping blocks are saved, workload for frequent changing of the clamping blocks is reduced, physical health of workers is protected, and production quality of the tubes is improved.

The invention relates to sheet bending and forming mould and method. The forming mould comprises a die, a terrace die and an eccentric swage arranged between the die and the terrace die; the shape of the forming face of the terrace die is the shape of a bent finished workpiece; the die comprises a first sub die, a second sub die and a third sub die; the three sub dies are respectively matched with the eccentric swage and the terrace die to carry out three-time mould pressing on a sheet; the first sub die has a die orifice and comprises a first wrap angle part and a transition section transiting to the bottom of the first sub die from the first wrap angle part; the first wrap angle part limits the die orifice and corresponds to the convex corner edge of the finished workpiece in shape; thesecond sub die has an inner side wall corresponding to the side of the finished workpiece; and the third sub die comprises a second wrap angle part corresponding to the convex corner edge of the finished workpiece in shape and an inner side wall extending along the shape of the side of the finished workpiece form the second wrap angle part. The sheet bending and forming mould and the forming method can reduce wrinkling during sheet bending and improve the sheet forming yield.

The invention discloses a novel medical physiotherapeutic band and production process of the novel medical physiotherapeutic band. The medical physiotherapeutic band comprises a piece of elastic cloth, a piece of isolating paper, and a medical acrylic adhesive layer which bonds the elastic cloth and the isolating paper together, wherein wavy glue vacant sites are evenly distributed on the medical acrylic adhesive layer, and linear glue vacant sites are further evenly distributed on the medical acrylic adhesive layer. According to the novel medical physiotherapeutic band, a plurality of linear vacant sites are formed in a wavy continuous glue face, so that straight-bar shaped space forms when tissue fluid is guided from A site to B site, and the flow of the tissue fluid can never be blocked and can smoothly leads to lymphatic tissues. The novel medical physiotherapeutic band has the advantages of being good in flow-guiding performance, not prone to causing allergy, good in improving blood circulation, good in guiding meridians, capable of building unimpeded subcutaneous channels, and good in adhesiveness.