335results about How to "Guaranteed dimensional accuracy" patented technology

The invention relates to the technical field of batteries, in particular to a battery cell cover plate and a battery cell. According to the battery core cover plate, a riveting part is formed at one end of a pole; a connecting hole in the riveting piece is a stepped hole with a first stepped section and a second stepped section, and the pole is riveted with the riveting piece, so that part of the riveting part expands towards the direction close to the second stepped section; before riveting, the size of the riveting part in the thickness direction of the cover plate body is m, the total size of the first step section and the second step section in the thickness direction of the cover plate body is n, and (m-n) / n = 0.15-0.3. According to the invention, enough material expansion is ensured after the pole is riveted with the riveting piece, so that the push-pull force which can be borne by the pole meets the use requirement of the battery cell cover plate, the safety performance of the battery cell is ensured, the problem that the size of the battery cell cover plate is out of tolerance due to excessive material expansion after the pole is riveted can be avoided, and the product quality is improved. And the size precision and the shape precision of the battery cell cover plate are ensured to meet the design requirements, so that the production yield of the battery cell cover plate is improved.

The invention relates to a manufacturing method of a small-caliber nickel-copper alloy seamless heat exchange tube. The manufacturing method comprises the steps that S1, a UNS N04400 round steel material is subjected to peeling, PT inspection, shearing, centering, grinding, heating, perforating, water cooling and inspection; s2, a hot-punched blank is only cleaned, and inspection is conducted after point grinding is conducted after internal and external polishing; s3, the obtained pipe blank is subjected to first-pass intermediate product cold rolling, deoiling, straightening, pipe cutting, grinding, inspecting and cleaning; s4, second-pass intermediate product cold rolling, deoiling, heat treatment, straightening, pipe cutting, grinding, inspection and cleaning are conducted; S5, finished product cold rolling is conducted; s6, deoiling a finished product; s7, heat treatment of a finished product; s8, straightening a finished product; s9, performing ultrasonic vortex treatment, water pressure treatment and pipe cutting on a finished product; and S10, finished product surface inspection, size inspection, cleaning, mark spraying and finishing procedures are carried out. The method has the advantages of high one-time inspection qualification rate, yield and dimensional precision of products, good inner and outer surface quality, stable structure performance and high practicability.

The invention discloses a manufacturing method of a UNS N06690 alloy seamless heat exchange tube, which belongs to the technical field of material processing, and comprises the following steps of: (1) performing peeling, PT inspection, shearing, centering, grinding, heating, perforating, water cooling and inspection on a round steel material; (2) carrying out acid pickling on the hot-punched blank, and then carrying out incoming material inspection and inner and outer surface grinding; (3) two-pass intermediate product cold rolling is carried out, and after cold rolling, intermediate product deoiling, intermediate product heat treatment, intermediate product straightening, intermediate product pipe cutting, acid pickling, intermediate product grinding and repairing and intermediate product inspection are carried out; (4) carrying out finished product cold rolling; (5) deoiling a finished product; (6) performing heat treatment on a finished product; (7) straightening a finished product; (8) carrying out finished product ultrasonic eddy current, water pressure and pipe cutting, sampling during pipe cutting, and carrying out physical and chemical tests; and (9) the obtained steel pipe is subjected to the procedures of finished product surface inspection, size inspection, cleaning, mark spraying and finishing and finally packaged and warehoused, and the product produced through the method is high in one-time inspection qualification rate and high in yield.

The invention relates to the technical field of metal casting, in particular to a preparation method of a casting with a complex pipe cavity and a mold, and the preparation method comprises the steps of mold core preparation, wax mold design, basic wax mold preparation, integral wax mold preparation, mold shell preparation and smelting and pouring. The basic wax mold preparation comprises the step of designing a plurality of block wax molds according to a casting pipe cavity structure; the whole wax mold preparation comprises the steps that a mold core and a plurality of block wax molds are combined and assembled through a splicing tool, so that the mold core is arranged in a multi-angle special-shaped pipe cavity defined by the block wax molds, and a whole wax mold is obtained; wherein partial areas of at least partial pipe bodies of the mold core are the same as the inner diameter of the multi-angle special-shaped pipe cavities in the corresponding positions so as to be precisely matched, and the rest partial areas of at least partial pipe bodies are arranged in the multi-angle special-shaped pipe cavities in a suspended mode. By means of the preparation method, it can be guaranteed that the block wax mold is accurately matched with the mold core, and the size precision of an inner cavity of a later casting can be guaranteed through the size precision of the mold core.

The invention relates to the technical field of hollow part production, and discloses a metal-plastic composite car lamp frame shell integrated injection molding device which comprises an injection molding machine, a movable mold and a fixed mold are installed in the injection molding machine, an external manipulator and an external cooling module are installed outside the injection molding machine, and two fixing holes are symmetrically formed in the outer surface of the movable mold; an injection molding assembly is arranged in the injection molding machine, the injection molding assembly comprises not less than two metal pipes and not less than four extension pipes, and in the cooling process, the metal pipes are cooled from inside to outside based on the physical characteristics of the metal pipes; by means of the cooling mode, the middle of the molding material is cooled and shrunk firstly, the situation that the outer layer is solidified firstly due to the fact that cooling is conducted from the outside to the inside of the cavity traditionally is changed, when the internal material is cooled and shrunk, limitation of the solidified outer layer material is avoided, and therefore the problem that cavities are generated due to inconsistent shrinkage is effectively prevented.

The invention belongs to the technical field of stamping dies, and particularly discloses a die for trimming and punching automobile chassis metal parts, which comprises an upper stamping die fixed at the moving end of a stamping machine and a lower stamping die fixed on the stamping machine, and a stamping die cavity for forming the automobile chassis metal parts is formed between the upper stamping die and the lower stamping die; the upper stamping die comprises multiple stages of stamping heads so that a material belt passing through a stamping machine can be machined into an automobile chassis metal part step by step. The upper stamping die further comprises a temperature control structure used for conveying refrigerants, and the temperature control structure is used for being matched with the multi-stage stamping head to adjust the first temperature value of the stamping die cavity to be within a preset temperature interval. A temperature control runner used for conveying a refrigerant is formed in the lower stamping die; the temperature control runner is communicated with the temperature control structure so as to adjust a second temperature value of the automobile chassis metal part to be within a preset temperature interval; the temperature control structure has the advantages that heat balance of the die is achieved, material resilience is reduced, finished product precision is improved, die service life is prolonged, and production stability is improved.

The invention discloses a welding method for a tower drum and a foundation ring of a wind generating set. Comprising the following steps: a welding preparation stage: carefully selecting and treating materials, strictly debugging equipment and carefully preparing weldments; in the welding implementation stage, an argon-rich mixed gas shielded welding method is determined, welding process parameters are optimized, and the welding processes of a single-section longitudinal seam and a flange, two small-section assembly, large-section assembly length, an inner circular seam and an outer circular seam are accurately controlled; in the welding quality control stage, welding parameters are monitored and adjusted in real time, and appearance inspection after welding, RT ray inspection, mechanical property testing and metallographic testing are strictly conducted; and the production practice and optimization stage is applied to actual production, problems are tracked and solved, and the process is continuously optimized to improve the quality. The method effectively improves the welding quality and the production efficiency, enhances the structural stability, reduces the cost and promotes the development of the wind power industry.

According to the industrial valve body forming method, through optimal design of a parting surface, optimal design of a pouring system, optimal design of a dead head, optimal design of chiller arrangement and optimal design of reduced scale and smelting process parameters in sequence, the size precision of a casting can be guaranteed, and meanwhile the quality of a flange face and the internal quality can be guaranteed; oxidation slag inclusion defects caused by turbulent flow are effectively reduced, the solidification speed of thick and large parts is increased, the shrinkage cavity and shrinkage porosity defects of key positions of castings are eliminated, the size precision and the internal quality of the valve body castings both meet the requirements of design drawings, and the product percent of pass is increased.

The invention relates to the technical field of metal processing, and discloses a hot press molding process for metal product manufacturing, which comprises the following procedures: S1, raw material preparation, S2, mold design and manufacturing, S3, preheating treatment, S4, hot press molding, S5, cooling and demolding, S6, post-treatment and S7, packaging and storage.The process can improve the product quality, and the product quality is improved through strict raw material preparation; according to the die, impurities are removed, the size precision is ensured, a foundation is laid for high-quality products, the shape and size precision of the products is ensured, the consistency and reliability of the products are improved, the hot-press forming process is optimized, the temperature, pressure and time are accurately controlled, a die cavity is fully filled with metal materials, internal defects of the products are reduced, and the product quality is improved. The mechanical property of the product is improved, meanwhile, the production efficiency is improved, the hot press forming difficulty is reduced through the reasonable preheating treatment and the segmented pressurizing and heating mode, and the forming speed is increased.

The invention relates to the technical field of pipe production equipment, in particular to production equipment and a production process of a heat-resistant polyethylene PE-RT II type pipe, and the production equipment comprises a telescopic reset seat, an expansion device, a finishing cutter, a horizontal displacement device and an outer wall rotary repairing device; the telescopic reset seat is mounted at the axis position of the output end of the extruder; the expansion device is rotationally mounted at the telescopic end of the telescopic reset seat, the expansion device and the telescopic reset seat are coaxially arranged, and the expansion device is provided with a plurality of expansion ends; the multiple trimming cutters are evenly distributed at the expansion end of the expansion device. The horizontal displacement device is arranged on the outer side of the telescopic reset seat and is fixedly connected with the output end of the extruder; the outer wall rotating repairing device is installed at the movable end of the horizontal displacement device, a rotating repairing lantern ring is arranged on the outer wall rotating repairing device, the rotating repairing lantern ring and the expansion device are coaxially arranged, and the production efficiency and the production quality can be effectively improved.

The invention discloses a double-end-ring bent edge retainer production process and a die. A stretching and bottom cutting integrated forming die is used for carrying out stretching and bottom cutting operation on a circular blank disc, so that the circular blank disc is deformed into a semi-finished product with an inverted bowl-shaped structure, the semi-finished product is transferred to a straightening and shaping die, an inner turned edge formed in the previous step is corrected, and the retainer with the double-end-ring bent edge is obtained. Vertical to the horizontal reference surface; meanwhile, the flanging is adjusted to be parallel to the horizontal plane; a trimming die is used for accurately adjusting the length of the outer flanging on the lower side; an upper port part of the bowl-shaped structure is preliminarily bent by the aid of a pre-flanging die to form a flanging with a certain preset angle, the preliminarily bent part is further bent by the aid of a flanging die until the preliminarily bent part is completely parallel to the horizontal plane to form a stable upper side outer flanging, and the retainer with the double-end ring bent edges is produced by the aid of a multi-step stamping process. And the production speed is high, a plurality of parts can be continuously and rapidly machined, and the time for waiting for cooling or curing is not needed.

The utility model discloses an anti-deformation bearing thin-wall part machining supporting and fixing structure which comprises a base and a supporting assembly, a machining table is connected to the top of the base, clamping blocks are arranged on the two sides of the top of the machining table, and the supporting assembly is arranged in the machining table and comprises a bevel gear ring and a plurality of bevel gears meshed with the bevel gear ring. A lead screw is arranged in the machining table through a plurality of rotating frames, the surface of the lead screw is in transmission connection with a supporting plate through a lead screw nut, the supporting and fixing structure is provided with a supporting assembly, a driving motor drives a bevel gear ring to rotate, a plurality of bevel gears rotate synchronously, then the lead screw is driven to rotate, and the supporting plate ascends to support the interior of the thin-wall part; by means of the internal supporting mode, pressure and friction force borne by the inner wall of the thin-wall part during polishing can be effectively dispersed, deformation caused by lack of supporting is avoided, the size precision, the shape precision and the surface quality of the bearing thin-wall part are guaranteed, the product percent of pass is increased, and waste products are reduced.

The invention relates to the field of tire manufacturing equipment, in particular to a continuous fiber composite material tire bead forming device and a preparation process. Comprising a machine base, a feeding mechanism, a winding forming mechanism and a conveying mechanism. The feeding mechanism and the winding forming mechanism are both arranged on the upper half portion of the machine base, and the winding forming mechanism is arranged behind the feeding mechanism. The conveying mechanism is arranged on the left side of the lower half portion of the machine base. The invention has the advantages of flexible process adjustment and multifunctional performance, and various complex structures can be designed and processed according to the tire bead. Various fiber stacking modes and resin infiltration modes can meet different product structures and performance requirements of processing requirements through automatic control and intelligent operation of equipment.

The invention discloses a large-size large-curvature TiAl alloy turbine blade high-precision numerical control machining method which comprises the following steps that TiAl alloy is poured into a metal mold, and a blade ingot is manufactured; the blade ingot is subjected to hot isostatic pressing and heat treatment; firstly, a blade profile and runner surfaces of upper and lower margin plates are machined according to a blade model, the upper margin plate, sealing teeth and the lower margin plate of the blade are continuously machined, and a root extending part is machined to a tolerance zone on a three-dimensional model to serve as a reference surface; a three-coordinate measuring machine is adopted to carry out blade profile and full-size measurement on a machined blade, and the size is manually assisted to be ground to a blade product tolerance zone. According to the method, the advantages of five-axis machine tool machining are utilized, the problems that the metallurgical quality of the large-size blade is difficult to control and manual grinding is difficult to control are solved, the consistency of products machined through the method is good, the quality is guaranteed, the efficiency and the percent of pass can be greatly improved, and the productivity is greatly improved.

The invention discloses a preparation method of an ultra-pure nickel-titanium alloy thin-wall pipe for a heart valve. The method comprises the following steps: 1, preparing materials, and carrying out magnetic suspension induction melting to obtain a cast ingot; 2, gradually performing hot forging and rolling on the cast ingot to obtain a round bar; thirdly, the round bar is manufactured into a pipe blank, honing and polishing are conducted, and the nickel-titanium pipe is obtained; 4, assembling the nickel-titanium pipe into the titanium pipe to obtain a combined pipe; 5, heat treatment of the combined pipe; 6, three-roller precise cold rolling; 7, repeating to obtain a pipe semi-finished product; and 8, straightening and cylindrical grinding are performed to remove the titanium pipe. According to the method, the high-purity nickel-titanium alloy cast ingot is prepared through magnetic suspension induction melting, the outer-layer titanium pipe and the inner-layer nickel-titanium pipe are introduced to be assembled, the pass deformation is increased through the restraining and protecting effects of the titanium pipes, the number of times of rolling and heat treatment is reduced, and the machining period is shortened; the obtained ultra-pure nickel-titanium alloy thin-wall pipe is high in purity, high in size precision, good in surface quality, high in wall thickness uniformity and good in comprehensive mechanical property and is suitable for the field of heart valves.

The utility model is applicable to the technical field of boundary dimension detection, and provides an automatic boundary dimension detection device for an H-shaped column, which comprises a rack, and a transmission assembly, a detection assembly and a limiting assembly are arranged above the rack; the detection assembly comprises an assembly frame arranged above the rack; the transverse lead screw sliding table is arranged on the bottom side of the assembling frame; the longitudinal screw rod sliding table is arranged at the moving end of the transverse screw rod sliding table; the automatic feeding device can adapt to H-shaped columns of different shapes and sizes by arranging the detection assembly, has a wide application range, is matched with the transmission assembly capable of automatically conveying materials, and is high in automation degree, high in automation degree and high in automation degree. The length, the width and the height of the H-shaped column can be accurately measured on a large scale, it is ensured that the size precision of a product meets the requirement, the laser range finder adopts a non-contact measurement method, no physical damage or deformation is generated to the H-shaped column, and the detection efficiency and the product quality can be improved.

The invention discloses a plate processing technology, and aims to provide a plate arc-shaped surface processing method which is characterized by comprising the following steps: S1, plate pretreatment; s2, plate heating; s3, preparing a bending die; s4, the plates are placed and pressurized; s5, bending processing is carried out; s6, cooling treatment; s7, surface quality detection; s8, size detection; s9, post-processing the plate; and S10, final detection and packaging. Compared with the prior art, the plate arc-shaped surface machining method has the advantages that high-quality arc-shaped surface machining of the plate can be effectively realized; through a series of process steps of systematic pretreatment, heating, bending, cooling and the like on the plate, it is guaranteed that the plate does not deform or crack in the machining process, and the surface quality and the size precision of the bent plate can also be guaranteed; the invention is suitable for the technical field of plate processing.

The present invention discloses a grooving device and a grooving method for furniture manufacturing plates, and relates to the technical field of plate grooving devices. It solves the problem that when grooving two sides of a plate, it is necessary to first process one side and then flip the processed side and process it again. After flipping, the position of the previously dug groove cannot be accurately located, which leads to deviations in the grooves on both sides of the plate, and the depth of the grooves cannot be accurately controlled, resulting in inaccurate groove dimensions and even the plate being scrapped due to excessively deep grooves. A grooving device and a grooving method for furniture manufacturing plates, comprising a frame, the frame comprising an upper top plate, a lower bottom plate and four support columns, and the four support columns are respectively located on the upper top plate. The present invention can simultaneously groove the plate, so that there will be no positional deviation in the grooves on both sides of the plate, and the depth of the grooves can be determined by a depth protection component before grooving, thereby ensuring the dimensional accuracy of the grooves after processing and avoiding the scrapping of the plate due to excessively deep grooves.

The invention relates to the technical field of buildings, and discloses a recyclable universal back arris and a mounting method.The recyclable universal back arris comprises two back arris bodies and a connecting frame, each back arris body comprises two camber beams, a plurality of connecting plates are welded between the two camber beams, and the connecting frame is connected with the camber beams. The camber beams, the connecting plates and the connecting frames are all made of steel. The ends, close to each other, of the two back ridge bodies are slidably connected to the outer side of the connecting frame, and an adjusting mechanism is arranged in the connecting frame. The back arris is reasonable in design, the back arris is made of steel, the back arris has extremely high strength and bearing capacity, the back arris can be conveniently and rapidly installed through the installed installation mechanism, the installation mode is high in universality, and therefore the back arris can be suitable for different use scenes, cyclic utilization of the back arris is facilitated, and the concept of green construction is met; the length of the back ridges can be adjusted according to needs through the adjusting mechanism, and the flexibility and adaptability of construction are improved.

The invention discloses an automatic material nail removing device for a groove type commutator and a using method, and the device comprises a machine table, a main shaft box is arranged on the upper side of the machine table, a feeding sliding table module is installed on the opposite side of the main shaft box, a commutator feeding vibration disc is installed on the front side of the machine table, and a commutator conveying line assembly in butt joint with the commutator feeding vibration disc is installed on the machine table; a feeding manipulator module and a discharging module which synchronously and transversely move are arranged on the feeding sliding table module in a driving mode, an XY-axis bidirectional sliding table assembly is installed on the rear side of the machine table, a cutting tool is installed on the XY-axis bidirectional sliding table assembly, and a material receiving component corresponding to the discharging module is arranged on the side portion of the spindle box. An unloading conveying belt is mounted on the machine table below the receiving part; and the feeding manipulator module is used for putting a groove-shaped commutator on the commutator conveying line assembly into a main shaft chuck on the main shaft box. According to the invention, various technical problems generated by adopting a manual processing mode at present can be solved.

This utility model discloses a self-locking intermediate tensioning device for installing bridge housing parts, relating to the technical field of workpiece processing auxiliary devices. It includes a worktable, fixed seats, a fixed frame, fixed plates, a tensioning mechanism, and a fixing mechanism. Two symmetrically distributed fixed seats are fixedly connected to the upper surface of the worktable, and a fixed frame is fixedly connected between the two fixed seats. Two symmetrically distributed fixed plates are fixedly connected to the inner end face of the fixed frame. The fixed plates are fixedly connected to the upper surface of the worktable, and a tensioning mechanism is provided between the two fixed plates. The tensioning mechanism includes a hydraulic cylinder, a wedge-shaped tensioning plate, a moving block, and a central tensioning plate. This utility model features a tensioning mechanism where the hydraulic cylinder drives the wedge-shaped tensioning plate. Through the guidance of the T-shaped groove and the T-shaped plate, the vertical movement is converted into the horizontal expansion of the moving block and the central tensioning plate, thereby applying an adjustable tensioning force to the inner hole of the workpiece. This effectively ensures the dimensional stability and accuracy of the workpiece during subsequent processing such as press-fitting.

The utility model discloses a boring tool for an inner spherical surface of a flange hole, and belongs to the field of machining. A boring tool for the inner spherical surface of a flange hole comprises a boring tool rod and a molded surface boring tool. The boring cutter rod comprises a conical boring cutter rod handle and a rotary cutter rod connected with the boring cutter rod handle, a screw hole matched with the blind rivet is formed in the end of the boring cutter rod handle, a square hole used for installing the molded surface boring cutter is formed in the rotary cutter rod, a bolt used for fastening the molded surface boring cutter is arranged on one side of the square hole, and a threaded hole matched with the threaded hole is formed in the other side of the square hole. The profile boring cutter is specially designed in structure according to the inner spherical surface of a flange hole. Complex machining of the inner spherical surface of the flange hole can be completed at a time, multi-procedure errors are avoided, the size and shape precision is guaranteed, the requirement of a drawing is met, traditional step-by-step machining can be replaced, the tool changing frequency and the clamping time are reduced, efficiency is greatly improved, and production cost is reduced.

This application provides a fixture and method for clamping and machining thin-walled welded parts, relating to the field of fixture and tooling technology. The fixture includes a base mechanism, a central positioning mechanism, an angular positioning structure, an auxiliary support mechanism, and a clamping mechanism. The base mechanism uses a disc and multiple circumferentially arranged elongated plates to form a support surface; the central positioning mechanism mates with the positioning inner hole of the part to achieve central positioning; the angular positioning structure mates with the angular hole of the part to achieve angular positioning; the auxiliary support mechanism is set for each lug to be machined, using V-shaped supports and lateral limiting components to provide auxiliary support and limit the lugs to be machined; the clamping mechanism clamps the part to the clamping reference surface. This solution can improve the clamping stability, positioning accuracy, and local rigidity during machining of thin-walled welded parts, reduce vibration and lateral displacement of the lugs to be machined, and reduce the risk of cracking at the weld joint.

This invention belongs to the field of aerospace structural component manufacturing technology, specifically relating to an arc-shaped cap and its integrated bending forming method and application. The integrated bending forming method includes the following steps: S1, blanking to obtain a cap plate blank or cap frame blank; S2, milling to machine the external dimensions and hole positions before bending, obtaining a flat, non-arc semi-finished product; S3, bending, placing the flat semi-finished product between the punch and die of a bending die, and applying pressure to press it into an arc-shaped part with a predetermined curvature; S4, stress-relieving treatment of the bent arc-shaped part to eliminate its internal residual stress; S5, shaping, bending and shaping again to stabilize its curvature shape, obtaining the final arc-shaped cap product. This invention effectively solves the problem of springback during sheet metal bending by introducing a combination of bending die design, graded pressure control, and stress-relieving and shaping processes, ensuring the accuracy of the final product's curvature and external dimensions.

The utility model relates to the technical field of vehicle-mounted electric control cover plate die-casting, and discloses a new energy vehicle-mounted electric control cover plate die-casting device which comprises a die-casting device body, a baffle is fixedly connected to the left side of the top of the die-casting device body, a die-casting mechanism is arranged at the top of the die-casting device body, and a base is fixedly connected to the bottom of the die-casting device body. A collecting mechanism is arranged at the bottom of the die-casting device body, the die-casting mechanism comprises a die-casting assembly and a stirring assembly, the die-casting assembly is arranged at the top of the die-casting device body, and during use, through the arranged die-casting mechanism, when a vehicle-mounted electric control cover plate needs to be subjected to die-casting work, a first servo motor drives a first threaded rod to rotate; the hydraulic cylinder pushes the push plate, raw materials in the conveying pipe stably and accurately enter the first die, the right side of the second die makes close contact with the left side of the first die, and the sealing performance of the dies in the die casting process is guaranteed.

The invention provides a preparation method capable of preparing a special-shaped diamond-copper-tungsten composite material, which comprises the following steps: mixing metal tungsten powder and an organic binder, granulating, and injecting into a special-shaped mold to obtain a shell green body; degumming and sintering the shell green body to obtain a first tungsten skeleton shell with a porous structure; filling the first tungsten skeleton shell with a porous structure with the diamond powder coated with the metal tungsten to obtain a second tungsten skeleton shell; and the second tungsten framework shell is placed in a mold, metal copper is placed on the surface of the second tungsten framework shell for vacuum infiltration, and the diamond-copper-tungsten composite material is obtained. According to the preparation method, various special-shaped parts can be directly prepared while the dimensional precision of the product is guaranteed, the finished product can be obtained only by performing fine treatment on the surface, the machining amount is reduced, and the effects of reducing cost and improving efficiency are achieved.

A method for manufacturing a large-scale balance weight of a steel sheet pile ship lift, which simplifies the processing flow of the large-scale balance weight. The method first cuts a continuous casting steel blank into single pieces of steel sheet pile with grooves, and measures and marks the steel sheet pile. Then, two groups of steel sheet pile are assembled together by processing and pre-installing gap pads. After the preliminary assembly is completed, the balance weight is marked again, and then the locking bolt holes, pin shaft holes and lifting lug holes are drilled and processed, and the holes are counterbored. The next step is to cut and install the edge plates at the top and bottom of the grooves. The trial lifting is performed and the lifting shaft hole reinforcing plates are pre-installed to ensure the stability of the structure. The stop seat plates are further processed and installed to provide protection for the final stability. Finally, the overall performance of the balance weight is verified by the second trial lifting, and the remaining edge plates are pre-installed. The present application can realize efficient processing of large-scale steel sheet pile balance weight by using conventional general equipment.

This utility model discloses a C-dimensional gauge for the refrigerant circulation pipeline from the refrigerator to the compressor, belonging to the field of automotive air conditioning system component manufacturing technology. It includes a base plate and a refrigerant circulation pipeline C body. A refrigerator side pressure plate ruler, a first gauge, a second gauge, a refrigerator side hose gauge, a compressor pressure plate ruler, a compressor side hose gauge, and a third gauge are distributed along the pipeline path of the refrigerant circulation pipeline C body. The refrigerant circulation pipeline C body is snapped between the tops of the refrigerator side pressure plate ruler, the first gauge, the second gauge, the refrigerator side hose gauge, the compressor pressure plate ruler, the compressor side hose gauge, and the third gauge. This utility model is convenient, time-saving, and labor-saving to operate, facilitating a one-time measurement of the full-size pipeline, ensuring measurement accuracy and consistency, and improving the efficiency of inspection work.

The utility model provides a kind of supporting leg riveting tool, including underframe;Two columns, the opposite side of two described columns is provided with positioning pin, the positioning pin can be inserted to the preset hole site of support plate both sides to position support plate, the same side of two described columns is protruded and set first support platform;Second support platform, the upper end of second support platform is provided with V-shaped positioning slot;After assembly ends, when lifting supporting leg structure from shaft sleeve, support plate can be turned up around positioning pin, and by adjusting the spacing of two columns, so that column avoids and supporting leg vertical plate of support plate exist in the first direction and offset, avoid interference, when supporting leg structure is lifted to vertical, positioning pin can be removed, or continue to adjust the distance of two columns, so that positioning pin and support plate separate, supporting leg structure is smoothly lifted away.

The utility model discloses a novel roll bending inner chamber filling structure relates to the field of roll -in technology, including device platform, the device platform upper surface is established with the mounting groove, the inboard of mounting groove is provided with filling assembly and pull assembly respectively, the filling assembly is including fixed base, the fixed base upper end fixedly connected with the filling groove, the filling groove lower surface fixedly connected with spring box and is provided with the through groove with spring box upper surface through -setting, the utility model discloses the filling assembly of setting, pull rod and draw a rope realize soft and hard link, thereby realize the matching of product and draw a rope, and the middle position of core mould increases a limit ring and product inner width surface effective flow contact, has reduced product and the cooperation clearance and contact area of filling, has effectively solved the problem of filling local deviation, has effectively improved the work efficiency of filling, has improved practicality.