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113results about How to "Reduce mold" patented technology

One-time thermoform composite mold for nickel-titanium shape memory alloy patellar concentrator and operation method thereof

InactiveCN101172294AReduce the number of forming operationsReduce moldShaping toolsBone implantComputer moduleAlloy
The invention relates to a compound die assembly of a fixing device for processing the human body skeleton and an operating method thereof. The compound die assembly comprises an upper male die and a lower concave die, the upper male mould comprises a concave module (1) and a press plate (2), wherein, the concave module (1) is matched with the shape of a patella collection device (8), and a vacant groove is arranged between an m claw and an n claw. The lower concave die comprises a concave module (4), a cam (3) and a lever shaft (5), the concave module (4) presents a cuboid, the upper surface is a plane for placing the flat-plate material, the side face of the concave module (4) presents a C character shape, the lever shaft (5) is arranged at the lower part of the concave module (4), the upper male die moves downwards and presses in the lower concave die in the way of two sections, the press plate (2) lies hard upon the cam (3) and drives the rotation of the concave module (4), the flat-plate material is bent and formed on the concave module (1), and a finished product is laterally taken out from the groove of the concave module (1). The invention reduces the numbers of forming and processing, reduces the cost and improves the working efficiency. A blank only is under a linear stress state during the forming process of the patella collection device, the stress state is improved, and the strength, the rigidity and the products quality are improved.
Owner:SHANGHAI SECOND POLYTECHNIC UNIVERSITY

Small light numerically-controlled bus processing machine

The invention relates to a small light numerically-controlled bus processing machine. The small light numerically-controlled bus processing machine comprises a platen, supporting plates, a grating controller, an oil cylinder, a pressure head, an upright column, a shearing mold, a punching mold and a bending mold, wherein an oil cylinder insertion hole, a guide groove and an upright column fixing hole are formed in the platen respectively, the oil cylinder is inserted in the oil cylinder insertion hole and fixed on the platen, and the upright column is fixed on the platen; a strengthening plate is connected with the lower wall surface of the platen, the upright column and a strengthening sleeve; a falling object chute is formed in the strengthening plate, a section of the guide groove is correspondingly formed above the falling object chute, the pressure head is arranged at the front end of a piston rod of the oil cylinder, a first dovetail groove is formed in the pressure head, a second dovetail groove is formed in the upright column, and the supporting plates are positioned on two sides of the platen; a grating scale is connected below the pressure head, and arranged on the lower bottom surface of the platen; and a shearing stripping groove penetrating a middle shaft of the upright column and the whole upright column is formed in the side surface of the upright column, and an opening on one side of the shearing stripping groove is positioned in the second dovetail groove. The small light numerically-controlled bus processing machine has the advantages of functional diversity, simplicity, light weight, small size and the like.
Owner:陈伟民

Test method based on forming limit diagrams for plate hydroforming

Provided is a test method based on forming limit diagrams for plate hydroforming. The method comprises the steps that a series of test plates, assistant plates and laminated assistant plates of different width dimensions and specific shapes are overlapped on a female mold in a specific mode; the plates are subjected to forming limit testing in an overlapped plate hydroforming mode; the forming performance of the laminated assistant plates is higher than that of materials of the test plates, and it is ensured that the test plates enter an unstable rupture state firstly; and then all second principal strain positive portions and second principal strain negative portions under linear loading are obtained by measuring test-pieces of different widths, and accordingly all the complete hydroforming limit diagrams are obtained. The test method based on the forming limit diagrams for plate hydroforming carries out quasi-complement on the vacancy of the forming limit diagrams for plate hydroforming. The method has the advantage of overlapped plate formation so that pressure transfer of a hydraulic chamber can be guaranteed. In the hydroforming process, completeness of brake beads is ensured through the assistant plates, gap uniformity is ensured, and the plates are prompted to deform sufficiently. The test method has the advantages of being high in efficiency, small in number of molds, low in cost, safe and convenient to operate, and the like.
Owner:BEIHANG UNIV

Light-small type numerical-control bus bar bending machine

The invention relates to a light-small type numerical-control bus bar bending machine, comprising a table plate, support plates, a grating controller, an oil cylinder, a press head, a vertical column and a bending die, wherein the oil cylinder and the vertical column are fixed on the table plate, a reinforcing plate is arranged on the lower wall surface of the table plate, and the reinforcing plate is connected with the vertical column and a reinforcing sleeve; a material-falling inclined groove is formed on the reinforcing plate; a section of guide groove is correspondingly formed above the material-falling inclined groove, and is through from top to bottom, the press head is arranged at the front end of the oil cylinder; a first dovetail groove is formed on the press head, and a second dovetail groove is formed on the vertical column, a slide foot is arranged below the press head, a connecting foot is connected below the slide foot, a connecting rod extending along the left side or the right side of the table plate is connected below the connecting foot, a connecting plate is connected to the other end head of the connecting rod, the connecting plate is connected to a grating ruler, and the bending die comprises a bending convex die and a bending concave die; and a swallow tail E3 is arranged on the side of the bending convex die, and a swallow tail F is arranged on the side of the bending concave die. The light-small type numerical-control bus bar bending machine disclosed by the invention has the advantages of being accurate in bending angle, high in efficiency, small in die, light in machine body, firm in table plate, easy to carry, and the like.
Owner:陈伟民

Fuel filter

The invention discloses a fuel filter which comprises a filter base, a filter element assembly and a seal ring, wherein the center of the bottom of the filter base is provided with a convex connecting rod; a connecting section is also arranged between the bottom of the filter base and the connecting rod; the diameter of the connecting section is larger than that of the connecting rod, and outer threads are arranged on the connecting section; the center of the top of the filter element assembly is provided with a groove which is matched with the connecting section, and the inner wall of the groove is provided with matched inner threads; a connecting groove which is matched with the connecting rod is arranged under the groove of the filter element assembly; the connecting rod has a circular truncated cone structure with a top down design; and the seal ring is arranged at the bottom of the groove of the filter element assembly, the outer edge is abutted against the groove, and the inner edge is matched with the connecting groove in the size. The double-seal structure of the invention has favorable seal performance, can ensure the seal performance of the fuel filter without tightly screwing an end cover and a filter element on purpose when a filter element is assembled or replaced, solves the problem brought by tightly screwing and is convenient to assemble, disassemble and replace the filter element of the filter.
Owner:SANY HEAVY MACHINERY

Bus bar punching machine

The invention relates to a bus bar punching machine, comprising a table plate, support plates, an oil cylinder, a press head, a vertical column and a punching die, wherein an oil cylinder insertion hole, a guide groove and a vertical column fixing hole which are longitudinally arrayed are sequentially formed on the table plate; the oil cylinder and the vertical column are fixed on the table plate; a reinforcing plate is arranged on the lower wall surface of the table plate; a material-falling inclined groove which is formed towards a side surface is formed on the upper surface of the reinforcing plate; a section of guide groove is correspondingly formed above the material-falling inclined groove, and is through from top to bottom; the press head is arranged at the front end of the piston rod of the oil cylinder and towards the direction of the vertical column; a first dovetail groove is formed at one side facing the vertical column, of the press head, and a second dovetail groove is formed at one side facing the press head, of the vertical column; the support plates are located at the both sides of the table plate; a slide foot is arranged below the press head and arranged in the guide groove, and can be used for guiding the press head to slide back and forth along the direction of the guide groove; and the punching die is arranged on the press head of the oil cylinder and the vertical column. The bus bar punching machine disclosed by the invention has the advantages of being simple, light and small in structure, small in die, light in machine body, firm in table plate and easy to carry.
Owner:陈伟民

Electric vehicle alternating current charging gun with integrated control circuit hidden in gun body

PendingCN110364896AEliminate the upper and lower shellsReduce moldVehicle connectorsCharging stationsLeaking waterElectricity
The invention discloses an electric vehicle alternating current charging gun with a control circuit hidden in a gun body. The charging gun comprises a power plug, a gun connecting electric wire, a charging control circuit component, a charging plug assembly, a gun body, a tail cover, a connecting plate and a cover plate. The power plug, the gun connecting electric wire, the charging control circuit component and the charging plug assembly are electrically connected, and the charging plug assembly and the charging control circuit component are both arranged in the charging gun body. The charging control circuit part is integrated in the gun body, so that an upper shell and a lower shell of a charging control box are omitted, cost is reduced, and the charging gun is miniaturized and integrated. The electric plug assembly, the tail cover, the connecting plate, a switch and the gun body are sealed, so all connecting positions of the charging gun are sealed, and the protection level is improved to IP67 from existing IP55. Drain holes are formed in the lowest positions of the front-end low-position cavity and the tail low-position cavity of the gun body, so even if a small amount of leaked water exists, the leaked water can be drained in time, short circuit of a control circuit cannot be caused, and the service life of the charging gun is prolonged.
Owner:华星动力(江苏)有限公司

Multi-mold-cavity mold structure

The invention relates to a multi-mold-cavity mold structure. The multi-mold-cavity mold structure comprises a plurality of mold cavities and a plurality of flow passages, which are arranged on the mold, wherein the mold cavities include a first mold cavity, a second mold cavity, a third mold cavity and a fourth mold cavity, and the first mold cavity, the second mold cavity, the third mold cavity and the fourth mold cavity are distributed in an H shape; the first mold cavity and the third mold cavity are arranged on the left side, and the second mold cavity and the fourth mold cavity are arranged on the right side; the flow passages include a first flow passage, a second flow passage, a third flow passage and a fourth flow passage, the first flow passage is transversely arranged, the first mold cavity and the second mold cavity are arranged on one side of the first flow passage, the third mold cavity and the fourth mold cavity are arranged on the other side of the first flow passage, one end of the second flow passage is communicated with the first mold cavity, the other end of the second flow passage is communicated with third mold cavity, one end of the third flow passage is communicated with the second mold cavity, the other end of the third flow passage is communicated with the fourth mold cavity, and the first flow passage is respectively communicated with the second flow passage and the third flow passage; one end of the fourth flow passage is communicated with the first flow passage. The multi-mold-cavity mold structure has characteristics of flexibility in operation and low production cost.
Owner:ZHONGSHAN MEIJIESHI PACKAGING PROD
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