45results about How to "Reduce fixation steps" patented technology

The invention discloses intelligent clamping and fixing equipment for circuit board welding. The intelligent clamping and fixing equipment is characterized by comprising a fixed clamping assembly, a moving clamping assembly and an angle adjustment device, the moving clamping assembly is used for adjusting the distance with the fixed clamping assembly and jointly clamping a circuit board with the fixed clamping assembly, and the angle adjustment device is used for adjusting the angle of the included angle between the circuit board and the horizontal plane. The intelligent clamping and fixing equipment is stable in structure and fast and convenient to disassembly and assembly, the angle adjustment device adjusts the angle of the included angle between the circuit board and the horizontal plane so as to meet the board inspection or welding need, indexing holes are formed in two rotating discs, the numbers of the indexing holes in the two rotating discs are different, and the angle of theincluded angle between the circuit board and the horizontal plane can be quickly and effectively adjusted through the matched used of the two rotating discs; and the moving clamping assembly is arranged so as to facilitate clamping of the circuit boards of different length, in addition, a low-order plate is fixed through a sucking disc, the many traditional fixing steps are reduced, and the welding efficiency is improved accordingly.

The invention provides a method for measuring cytotoxicity of condensate of main stream smoke of cigarettes, which is characterized by comprising the following steps: 1) preparation of laboratory reagent, 2) preparation of the condensate of smoke, 3) cells inoculation and culture, 4) contamination of the condensate of smoke, 5) neutral red dying, and 6) result and analysis. The content of the method is as follows: on the basis of the principle of neutral red cell toxicity tests, test procedures are improved according to the cytotoxicity characteristics of the condensate of the main stream smoke of cigarettes, and a method for measuring cytotoxicity of condensate of main stream smoke of cigarettes with low hazard is established. In the invention, the step for fixing formaldehyde fixing solution is reduced to cause the test procedures to be simpler, and simultaneously, the condensate of the main stream smoke of cigarettes is a complex mixture system, has the toxic characteristics of low toxicity and the like and improves the diluted culture solution of samples, namely that the concentration of fetal calf serum is regulated from 10% to 5%, therefore, the test result is more accurate and reliable. The method has the advantages of simpler operation, higher sensitivity and more reliable results.

The invention provides a preparation method and application of a self-supporting Pd-Ag-Ni ternary metal catalyst. The preparation method comprises the following steps: step 1, pretreating nickel foam; step 2, taking the pretreated nickel foam as a substrate, immersing the pretreated nickel foam into an AgNO3 precursor solution, enabling metal Ni and Ag+ to carry out galvanic substitution, forming a metal Ag layer on the surface of foam Ni to obtain Ag substituted nickel foam, cleaning with ultra-pure water, and drying for subsequent use; and step 3, taking out the Ag substituted nickel foam, immersing the Ag substituted nickel foam in a K2PdCl4 precursor solution, enabling metal Ag on the nickel foam in the step 2 and [PdCl4] 2- to carry out partial galvanic substitution, taking out, cleaning with ultra-pure water, and drying to obtain the self-supporting Pd-Ag-Ni ternary metal catalyst. The prepared self-supporting Pd-Ag-Ni ternary metal catalyst has excellent activity to electrocatalytic oxidation of methanol in an alkaline environment, and has good application prospect in the field of low-temperature methanol fuel batteries.

The invention relates to a wiper blade (12) comprising a wiper strip (13) and a wiper strip carrier (1). The invention provides that the wiper blade (13) is molded in sections around the wiper strip carrier (1).

The present invention belongs to the technical field of cables and discloses a fixing device for a pre-branch cable. The fixing device comprises a first fixed bracket, an end surface of the first fixed bracket is equipped with a main wire clamping seat, the main wire clamping base includes a first upper clamping plate and a first lower clamping plate, one end of the first upper clamping plate is hinged to the first lower clamping plate, and the opposite sides of the first upper clamping plate and the first lower clamping plate are provided with first arched groove in an opposite arrangement. The fixing device further comprises a branch wire clamping seat and a telescopic rod, two ends of the telescopic rod are rotatingly connected to a main wire clamping seat and the branch wire clamping seat, the branch wire clamping seat comprises a second upper clamping plate and a second lower clamping plate, one end of the second upper clamping plate is hinged with the second lower clamping plate,and the opposite sides of the second upper clamping plate and the second lower clamping plate are provided with second arched groove in an opposite arrangement. According to the scheme of the invention, the wire arrangement between a main cable and a branch cable of the pre-branch cable can be flexibly achieved.

The invention relates to a forming manufacturing machining machine and a machining method for a low-voltage insulator. The forming manufacturing machining machine comprises a fixing table board, a mounting frame, a pushing pressing mechanism and a material placing mechanism, wherein the upper end of the fixing table board is provided with the mounting frame, the lower end of the mounting frame isprovided with the pushing pressing mechanism, the lower end of the pushing pressing mechanism is tightly attached to the upper end of the material placing mechanism, the material placing mechanism ismounted on the fixing table board, blanking openings and material placing grooves are uniformly formed in the fixing table board in the circumferential direction of the fixing table board, the blanking openings and the material placing grooves are arranged at intervals, and the blanking openings and the material placing grooves each are of a circular structure. According to the forming manufacturing machining machine, through the common cooperation of the pushing pressing mechanism and the material placing mechanism, the operation of grinding the outer surface of the hexagonal low-voltage insulator is completed; and a grinding frame matched with the shape of the low-voltage insulator is arranged on the material placing mechanism in advance, so that it is guaranteed that the grinding frameis attached to the surface of the low-voltage insulator without repeated position adjustment of the material placing mechanism before grinding, the grinding efficiency is effectively improved, and thegrinding effect is guaranteed.

The invention discloses a transducer, which comprises a conductive terminal, a first shell and a second shell and is characterized in that the conductive terminal comprises a first conductive part, a second conductive part which is connected with the first conductive part and a third conductive part which is connected with the second conductive part; the first shell is provided with a channel and a retaining wall; the second shell is provided with a baffle plate; the first conductive part of the conductive terminal goes through the channel; the second conductive part of the conductive terminal is hung at a through groove between the baffle plate and the retaining wall; the third conductive part of the conductive terminal is exposed outside the first shell and the second shell, which realizes good electric link. The invention also discloses an assembly method of the transducer and is characterized in that the first conductive part of the conductive terminal is inserted into the channel of the first shell; the second conductive part of the conductive terminal is parallel with the retaining wall; the third conductive part of the conductive terminal is exposed outside the first shell and the second shell; therefore, the process is simplified and the cost is saved.

The invention relates to embroidery equipment, specifically to a feeding apparatus for an embroidery machine. The feeding apparatus comprises a bracket and a worktable arranged on and fixedly connected with the bracket, wherein a feeding mechanism convenient for feeding is mounted on the worktable; the feeding mechanism comprises rotating wheels rotatably connected with both ends of the worktable,a conveyor belt wound between two groups of the rotating wheels, a driving motor arranged on and fixedly connected with the worktable, and a plurality of groups of clamping mechanisms arranged on thesurface of the conveyor belt; the output shaft of the driving motor is fixedly connected with the rotating wheels; and a feeding assembly convenient for feeding is arranged on one end of the worktable. A fabric is clamped by the clamping mechanisms; the driving motor drives the rotating wheel to rotate; the rotating wheels drive the fabric to move through the conveyor belt; and thus, the step ofmanual fixing of the fabric is omitted. Since the fabric is fixed by a mechanical structure instead of human beings, the production efficiency of the embroidery machine is improved.

The invention relates to the field of handicrafts, in particular to automatic assembling equipment for plywood handicraft components. The technical problems that when triangular plates are manually spliced, the triangular plates need to be fixed one by one through adhesive tapes, and when spherical artware is subsequently polished, the adhesive tapes need to be polished and removed firstly, so that the polishing efficiency becomes low are solved. According to the technical scheme, the automatic assembling equipment for the plywood handicraft components comprises a bottom frame, a portal frame and the like; and a portal frame is fixedly connected to the upper left part of the underframe. During use, the triangular plates are automatically placed into a hexagonal shape, then the middles of the side faces of the joints of the six triangular plates are coated with glue liquid at the same time, then the six triangular plates are combined and bonded together, manual operation is not needed, meanwhile, the adhesive tape fixing step is omitted, the glue liquid coating position and dosage are controlled, glue liquid overflow is avoided, and the production efficiency is improved. The processing steps are reduced, the efficiency is improved, and the cost is reduced.