12results about How to "Reduce machining" patented technology

The invention discloses a post-treatment method of an additive manufacturing metal part, and aims to solve the problem of insufficient fatigue performance caused by large surface roughness, internal residual tensile stress and the like of the additive manufacturing metal part. The fatigue weak part of the part can be directly subjected to high-frequency scanning treatment by using a micro-scale laser shock peening method under the conditions of no absorption protection layer, no water-light coaxial restraint layer and the like, and the surface roughness is reduced through the direct ablation melting effect of micro-scale small-energy pulse laser and the surface of the part; residual compressive stress is formed on the surface layer of the part through the mechanical effect of laser-induced shock waves, the surface smoothness is improved, the fatigue performance is improved, a laser melting / heat affected layer is removed through sand blasting, the surface smoothness is further improved, and therefore rapid post-treatment of the additive manufacturing metal part is achieved, and the method can be directly applied to engineering.

The utility model relates to the technical field of thermostats, in particular to a double-body thermostat base structure which comprises a base structure body, a first thermostat mounting hole and a second thermostat mounting hole are formed in the base structure body, and a cavity connecting channel is communicated between the first thermostat mounting hole and the second thermostat mounting hole. An embedded sleeve is embedded in the base structure body and located in the cavity connecting channel, so that the first thermostat mounting hole communicates with the second thermostat mounting hole through the embedded sleeve. According to the double-body thermostat base structure, the copper or stainless steel embedded sleeve is embedded and formed together when a product is subjected to die casting or injection molding, the two thermostat cavities are connected, the opening problem caused by core pulling in the base is solved, the product performance stability is further improved, and the service life of the product is prolonged. And the problem of easy leakage risk caused by plugging with a bowl-shaped plug after an opening is formed by core pulling of a traditional base cavity is avoided.

The utility model relates to the technical field of welding tools, in particular to a floor machine counterweight arm welding device which comprises a support, a panel, a positioning shaft, a positioning bolt and a quick pressing clamp. The panel is rotationally connected with the support through a connecting shaft, flange plates are arranged at the two ends of the panel, and the flange plates and the support are detachably fixed through fixing bolts. The positioning shaft is vertically fixed on the panel and is used for positioning the shaft sleeve; the positioning bolt is fixed on the surface of the panel and is matched with the through hole in the bottom of the counterweight arm; and the two groups of quick pressing pincers are respectively used for pressing the shaft sleeve and the counterweight arm. According to the welding tool, accurate assembly of the shaft sleeve and the counterweight arm is ensured through a mechanical positioning structure, manual splicing errors are effectively avoided, and the size of a welded workpiece directly meets the design requirement.

The utility model relates to the technical field of mechanical equipment parts, in particular to a supporting baffle of a lifting portal. In the prior art, a rectangular pipe and square plates on the two sides are welded together to form a structure. The disadvantage is high cost; the relative position error of the holes in the square plates on the two sides and the rectangular pipe is large due to the shape error of the rectangular pipe; the requirement for the size between square plates on the two sides is high, the precision of the square plates cannot be guaranteed through a direct welding process, and machining needs to be conducted after welding. A supporting bar of a lifting portal is characterized in that a supporting rod is of a structure with an opening in one side, the two sides of the supporting rod are detachably connected with a first supporting block and a second supporting block respectively, and the first supporting block and the second supporting block are attached to the inner side and the two sides of the opening of the supporting rod; the first supporting block and the second supporting block are each composed of a fixing block and a connecting block, and the fixing block is defined by reinforcing blocks on the two sides and a connecting plate in the middle. The connecting block is larger than the supporting rod. The structure is reasonable, connection is stable and reliable, and connection and disassembly are convenient and fast.

The invention discloses a method and a tool for manufacturing a boom connecting rod. The manufacturing method comprises the following steps: splicing and welding a rectangular tube part, splicing a connecting rod, welding a cylindrical shaft and a rectangular tube, and splicing and welding other parts. The tool comprises a controller, a tool body, a lifting device and positioning devices, the lifting device and the positioning devices are installed on the tool body, the positioning devices are installed at the two ends of the tool body respectively and are parallel to each other, the lifting device is arranged between the positioning devices, and the controller is in signal connection with the lifting device and the positioning devices respectively. By optimizing the splicing sequence, omitting the machining procedure, improving the production capacity, setting the post-welding shrinkage allowance and the welding current value, cooperating with segmented welding, reducing the welding deformation amount, improving the tool application universality through the lifting device and the positioning device, improving the overall precision and quality of the connecting rod by positioning all parts of the connecting rod, and improving the welding quality of the connecting rod. Precision is guaranteed and efficiency is improved.

The application relates to a waveguide coplanar slow wave line, belonging to the technical field of frequency scanning antennas, and solves the problem of large space occupation caused by independent design of the slow wave line and the radiation unit of the frequency scanning antenna in the prior art. The waveguide coplanar slow wave line is integrated with a rectangular waveguide; the slow wave line has multiple omega-shaped bends. One radiation unit is arranged on the slow wave line every interval of the omega-shaped bends. The application realizes the longest length of the slow wave line under the premise of fixed spacing of the radiation units, and realizes low profile design by arranging the slow wave line and the waveguide to be coplanar.

The present disclosure provides an internal connection copper sheet of a power module and a preparation method thereof, and a power semiconductor module. The internal connection copper sheet of a power module includes a copper plate, a first copper strip, and a second copper strip, where the first copper strip and the second copper strip are spaced apart on the copper plate; the first copper strip and the second copper strip are both arc-shaped; two ends of the first copper strip are arranged on the copper plate, and two ends of the second copper strip are arranged on the copper plate. According to the present disclosure, the difficulty of secondary forming of the copper plate in the module is reduced, and the mass production capacity is implemented.

The invention discloses an ultra-high molecular weight polyethylene knee joint pad and a forming method thereof, and the forming method comprises the following steps: S1, filling raw material powder into a pad mold, and carrying out mold pressing to form a knee joint pad blank; and sintering to obtain the knee joint pad. Wherein the raw material powder is ultra-high molecular weight polyethylene powder; or the raw material powder is formed by mixing ultra-high molecular weight polyethylene powder and an antioxidant; s2, performing radiation crosslinking on the knee joint pad in a reducing atmosphere; and S3, under an anaerobic condition, carrying out annealing treatment on the knee joint pad after radiation crosslinking to obtain the ultra-high molecular weight polyethylene knee joint pad. According to the forming method of the high-crosslinking ultra-high molecular weight polyethylene knee joint pad, the crosslinking degree is controllable, a friction surface does not need secondary machining, the surface is smooth, good cambered surface contact with a metal femoral head can be achieved, and abrasion is reduced; meanwhile, the method can remarkably improve the use performance of the high-crosslinking ultra-high molecular weight polyethylene knee joint pad, and the manufacturing difficulty of the material is greatly reduced.

The present invention relates to a floating brake caliper (1) for a disc brake, comprising a caliper body or floating element (2), a bracket or support element (3) configured to be connected to a vehicle, and at least one sliding guide or guide pin (4, 5), wherein the at least one sliding guide (4, 5) is arranged between the caliper body (2) and the bracket (3) to allow relative sliding between the caliper body (2) and the bracket (3) in an axial direction (A-A), wherein the caliper body (2) includes a first caliper portion or a vehicle-side caliper portion (6), wherein the first caliper portion (6) defines a receiving seat (7) for a thrust device (8), wherein the caliper body (2) includes a second caliper portion or a cantilevered caliper portion (9), wherein the second caliper portion (9) protrudes from the first caliper portion (6) at least in an axial direction (A-A) on the opposite side relative to the vehicle, such that the caliper body (2) is arranged to straddle the brake disc, wherein each sliding guide (4, 5) includes The device includes a guide sliding portion (10) slidably received in a corresponding sliding seat (11, 12), wherein the corresponding sliding seat (11, 12) is formed in the bracket (3) or the clamp body (2); a guide fixing portion (13) fixed to or rigidly constrained to the clamp body (2) or the bracket (3); and a screw head (14) wherein the screw head (14) defines at least one operating seat (15) such that the screw head (14) can be manipulated by a user and / or a tool to fix the at least one sliding guide (4, 5) to the clamp body (2) or the bracket (3), the screw head (14) being arranged on the side opposite to the first clamp body portion (6) in the axial direction such that the screw head (14) can be manipulated on the side opposite to the first clamp body portion (6) in the axial direction to fix and / or remove the at least one sliding guide (4, 5) relative to the clamp body (2) or the bracket (3).

The utility model discloses a box body structure of a stirrer, which comprises a first box and a second box, the first box and the second box are welded into a whole, the first box is used for installing a motor, the second box is used for installing a transmission assembly, and the motor provides rotation power for the transmission assembly; the first box comprises a plurality of side plates, a first mounting plate and a second mounting plate, the side plates are sequentially welded to form a containing cavity, the motor is contained in the containing cavity, the first mounting plate is welded to the tops of the side plates, and the second mounting plate is welded to the bottoms of the side plates; the second box comprises a semi-surrounding plate, a first connecting plate and a second connecting plate, the semi-surrounding plate is welded to one side plate, the first connecting plate is connected with the top of the semi-surrounding plate, the second connecting plate is connected with the bottom of the semi-surrounding plate, a bearing seat is arranged between the first connecting plate and the second connecting plate, and the transmission assembly is provided with a transmission shaft matched with the bearing seat. According to the utility model, the manufacturing process can be simplified, the production cost is reduced, and the assembly efficiency is improved.

The invention discloses metal plate less-cutting machining equipment for metallurgical machine part manufacturing. The metal plate less-cutting machining equipment comprises a control machine body and a cutting machine. A groove for conveying and cutting the metal plate is formed in the surface of the active tracking structure, and the active tracking structure is connected to the surface of the control machine body through bolts; the auxiliary positioning structure is slidably arranged on the left side of the upper surface of the control body in cooperation with a sliding groove formed in the surface of the control body and movably connected with the active tracking structure on the right side; through the arrangement of the active tracking and adjusting structure and the auxiliary positioning structure, linear driving of the cutting machine towards the position of the metal plate can be achieved by taking friction force of the metal plate as driving, dynamic guiding of the cutting machine and different metal plates at different distances can be achieved according to the sizes of the different metal plates, and meanwhile, the cutting machine can be driven by the auxiliary positioning structure when the cutting machine cuts the metal plates. And compared with a single mode of spraying from top to bottom, the two-way spraying mode has the advantages that the effect of two-way spraying is stronger, and thermal stress can be eliminated more quickly.

The invention relates to the field of liquid tank construction processes, in particular to a C-shaped liquid tank deep-well pump base heat-treatment-free anti-deformation construction process which comprises the steps of prefabricating a stainless steel deep-well pump base, completing pre-welding and heat treatment of a C-shaped liquid tank body and assembling and fixing the base. The low-temperature steel deep-well pump base made of the same material as the tank body is replaced by stainless steel, the base is thoroughly separated from a high-temperature heat treatment environment by utilizing the characteristic that stress relief heat treatment does not need to be carried out on the low-temperature steel tank body through stainless steel, and the problems of material microstructure change and thermal expansion and cold contraction caused by high-temperature annealing are avoided; the condition that the planeness of the flange surface of the base and the coaxiality of the spigot are reduced is fundamentally avoided; through the mode that the high-precision stainless steel base is prefabricated and the tank body is directly assembled after heat treatment, the machining procedure after deformation is omitted, and cost reduction, efficiency improvement and service life prolonging are achieved while the assembly precision and the structural stability of the tank body are guaranteed.