32results about How to "No mechanical deformation" patented technology

An observation method for fluid precision finishing of surfaces of micro-structures of molds is based on a fluid flowing similar simulation method. A tiny mold structural surface is proportionally magnified, flowing states of sparse abrasive particle flows in tiny constraint flow channels are simulated, real-time image data in the flow channels are acquired and processed, and a distribution state, movement rules, typical flowing state characteristics and development trend of the sparse abrasive particle flows in environments of the tiny constraint flow channels are obtained; and experiments show that properties of forces stressed at various points in a flow channel model and properties of forces stressed at various corresponding points in a mold tiny constraint flow channel prototype are identical on the premise of meeting requirements of geometric similarity and kinematic similarity, the forces are proportional, a proportion constant keeps unchanged to optional corresponding points in two flow fields, and fluid dynamic properties of the two flow fields meet requirements of second law of flow similarity. The invention further provides an observation device for fluid precision finishing of surfaces of micro-structures of molds. The observation method and the observation device have the advantages that fluid finishing conditions and states for the surfaces of the micro-structures of molds can be well simulated, operation is simple, convenient and feasible, and universality is good.

The invention provides a crawling robot and a marine steel surface pretreatment process. Fiber lasers are mounted on a vehicle body; the vehicle body is driven to move; laser cleaning is performed during moving; this mode is simple and efficient. The vehicle body has magnetic drive wheels so that the vehicle may travel in tight contact with the surface of a hull. The lasers mounted on the vehiclebody are kept evenly spaced from the surface of the hull. Fiber laser beams are used to perform laser scanning on the focal plane so that power density distribution is relatively uniform, and sundriesare cleaned without damaging steel base material. Compared with traditional grinding methods, the process employing noncontact processing has the advantages that laser processing causes no direct impact to marine steel so that no mechanical deformation occurs, laser processing precision is high so that the influence of human factors upon processing quality can be relieved, the processing efficiency is high, the quality is table and reliable, and the appearance is attractive.

The invention discloses a corrugated cardboard cutting and pressing integrated machine comprising a rack, a workbench arranged on the rack and used for placing a corrugated cardboard, a three-dimensional displacement structure arranged on the rack, a laser cutting system used for emitting laser, an indentation wheel structure for indenting the corrugated cardboard and a control device; the laser cutting system, the indentation wheel structure and an image acquisition system are arranged above the workbench and are connected with the three-dimensional displacement structure; and the control device is connected with the three-dimensional displacement structure and is also connected with the laser cutting system and the indentation wheel structure, and the laser cutting system and the indentation wheel structure are driven by the three-dimensional displacement structure to displace. Due to the adoption of the structure, the corrugated cardboard cutting and pressing integrated machine is low in processing cost, short in period, high in cutting precision, precise in location, convenient to mount and debug, high in flexibility, free of jittering during starting and free of creeping phenomena during operating at low speed, so that the micro-feeding can be precisely controlled, and the corrugated cardboard cutting and pressing integrated machine has the advantages of motion stability, high driving efficiency, high precision and good synchronism.

The invention discloses a laser beam multi-dimension precise adjusting device integrating an active heat dissipation structure. The device includes a laser, a base with a self-heat dissipation function, a rotating seat for adjusting a laser spot position, and a fixing seat; a transverse sliding groove is formed at the second corner of the rotating seat; a first adjustment rotation rod is formed atthe second corner area of the fixing seat, wherein the first adjustment rotation rod abuts against the transverse sliding groove and is used for driving the rotating seat to rotate relative to the fixing seat with a ball adopted a rotation fulcrum, so that the laser spot can move leftwards and rightwards along a transverse direction; a vertical sliding groove is formed at the fourth corner of therotating seat; and a second adjustment rotation rod is formed at the fourth corner area of the fixing seat, wherein the second adjustment rotation rod abuts against the vertical sliding groove and isused for driving the rotating seat to rotate relative to the fixing seat with the ball adopted the rotation fulcrum, so that the laser spot can move up and down along a vertical direction. The laserbeam multi-dimension precise adjusting device integrating the active heat dissipation structure of the invention is compose of precise mechanical transmission devices on the basis of optical technologies. With the laser beam multi-dimension precise adjusting device integrating the active heat dissipation structure of the invention adopted, the installation, debugging and use of laser beams under any temperature and angle conditions can be realized.

An embodiment of the invention relates to the technical field of laser processing, and discloses a laser cleaning device and method for the oxide skin on the surface of hot-rolled high-carbon steel. The laser cleaning device for the oxide skin on the surface of the hot-rolled high-carbon steel comprises an optical fiber laser and a cylindrical lens assembly. The cylindrical lens assembly is used for changing the two-dimensional distribution of laser beams emitted by the optical fiber laser so as to adjust the energy density of the laser beams to a cleaning threshold value. According to the laser cleaning device for the oxide skin on the surface of the hot-rolled high-carbon steel, the fiber laser is used for cleaning the surface and removing the oxide skin on the surface of the hot-rolledhigh-carbon steel containing the compact oxide skin, and non-contact machining is achieved. Compared with a traditional grinding method, laser machining has no direct impact on a workpiece and does not generate mechanical deformation. Compared with an acid pickling mode, no pollution is caused, the discharging and collecting processes of chemical stains are reduced, the influence of human factorson the machining quality is reduced, the machining quality is stable and reliable, and the appearance is attractive.

The invention discloses laser disassembly equipment for an externally-wrapped metal shell. The laser disassembly equipment comprises a control cabinet and an indoor equipment body; the control cabinetcomprises a laser emitter and a control system; the indoor equipment body comprises a movable cutting device and a clamping operation platform, wherein the movable cutting device and the clamping operation platform are arranged in the indoor equipment body and are supported by a lathe; a laser of the laser emitter adopts a pulse laser; the movable cutting device comprises a beam frame, a front slide carriage and a rear slide carriage, wherein the front slide carriage and the rear slide carriage are connected to the beam frame in a sliding mode; a laser cutting head arranged on the front slidecarriage is connected to the laser emitter; a cutting clamp is fixed to the rear slide carriage; the clamping operation platform comprises a sliding base, clamping head parts and a driving motor which are fixed to the lathe; and the clamping head parts are movably connected to the sliding base and is electrically connected to the driving motor. The laser disassembly equipment and the applicationmethod thereof have the advantages that a test workpiece is disassembled through a non-penetration type laser disassembly method, the cutting efficiency is high, the cutting quality is good, in addition, the laser disassembly depth is accurate and controllable, and the damage to internal materials can be prevented.

The invention discloses a welding model and welding method of an alloy steel turnout and a trough type steel rail. The welding model comprises a left sand mold and a right sand mold cooperating with the left sand mold. After being buckled, the left sand mold and the right sand mold are arranged on the two sides of a joint of the alloy steel turnout and the trough type steel rail. A bottom mold is arranged at the bottom of the left sand mold and the bottom of the right sand mold. The sand molds matched with the joint of the alloy steel turnout and the trough type steel rail, the bottom mold, a trough type plug block and a division block are arranged, and a closed thermit welding forming cavity is formed through cooperation between modules and manual filling and box sealing. The welding model cooperates with process methods and process parameters obtained through tests for the joint form, a casting system and the like for welding, a welding joint is stable in quality and good in performance, and various indexes meet the product performance requirement.

The invention discloses a negative-pressure polishing device and method for blind hole polishing for conductive workpieces. The negative-pressure polishing device for blind hole polishing for the conductive workpieces comprises a workbench, a movable location device, a rotary flow channel device and a rotary magnetic field device, wherein the movable location device is installed on the workbench;the rotary flow channel device is installed on the movable location device; and the rotary magnetic field device is fixed to a part at the inclined lower part of the rotary flow channel device, of theworkbench. According to the negative-pressure polishing device and method for blind hole polishing for the conductive workpieces, blind hole of blind hole workpieces can be polished, and the blind holes of the workpieces to be polished are enabled to be in a negative-pressure state through air extraction, so that abrasive particle flow can much smoothly enters into the blind holes; the abrasive particle flow used in the negative-pressure polishing device and method is liquid metal abrasive particle flow, and metal particles in the liquid metal abrasive particle flow form good contact with thesurfaces of the workpieces to be machined under the action of a rotary magnetic field generated by a three-phase stator coil, micro-cutting is carried out, and mechanical deformation on the surfacesof the blind holes of the workpieces to be machined is avoided; and higher polishing efficiency and better effect are achieved, and the micro-cutting is carried out.

The invention relates to a silicone carbide friction pair used for a non-contact mechanical seal and a manufacturing method of the silicon carbide friction pair. Concave points or geometry-shaped grooves are evenly distributed in the friction end face of the silicon carbide friction pair used for the mechanical seal, and the depth of the groove can be evenly changed gradually. The concave points or the geometry-shaped grooves evenly distributed in the friction end face of the silicon carbide friction pair are manufactured through laser processing.

The invention discloses a compressed air exhausting polishing device and a compressed air exhausting polishing method for polishing a blind hole. The compressed air exhausting polishing device comprises a movable positioning assembly, a runner assembly and a supporting and clamping assembly, wherein the movable positioning assembly comprises a worktable, a horizontal module mounting rack, a horizontal linear module, horizontal module driving motors, a vertical linear module and a vertical module driving motor; the supporting and clamping module comprises a supporting block, a secondary clamping head and a vertical mounting base; the runner assembly comprises a main clamping head, a hollow runner fixing seat, a runner fixing plate, a sliding rail connecting plate, an exhausting port one-wayvalve, a gas-liquid abrasive particle flow connector, an abrasive particle flow inlet valve, a compressed air port one-way valve, a runner connector, a hollow runner, a ring flange and a main clamping head O-shaped ring. The compressed air exhausting polishing device can polish blind holes of blind hole workpieces; and blind holes of to-be-polished workpieces are positioned in a negative pressurestate by exhausting air, so that abrasive particle flows can enter the blind holes more smoothly.

A laser texturing method for a plate welding machine box belongs to the technical field of material processing engineering, and is high in processing efficiency and short in processing cycle. The laser texturing method includes the steps: firstly, coating a protective layer on the surface of a part; secondly, selecting laser parameters of a laser device according to the thickness of the protective layer, performing parameter test cutting on a process side of the part, judging that the parameters are qualified if the protective layer is completely cut through without exposing base materials, judging that the parameters are unqualified if the protective layer is completely cut through while base materials are exposed and scratched, decreasing laser power and performing test cutting again until finding qualified parameters at the moment, judging that the parameters are unqualified if the protective layer is incompletely cut through, and increasing the laser power and performing test cutting again until finding qualified parameters at the moment; and thirdly, performing formal cutting according to the determined laser parameters in test cutting.

The invention discloses a device for conducting blind hole polishing of a conductive workpiece by using liquid metal and a method thereof. The device comprises a workbench, a moving positioning device, a rotating runner device and a rotating magnetic field device, wherein the moving positioning device is mounted on the workbench, the rotating runner device is mounted on the moving positioning device, and the rotating magnetic field device is fixed on the workbench obliquely below the rotating runner device. A blind hole of a blind hole type workpiece can be polished, and the blind hole of theto-be-polished workpiece is in a negative pressure state through air extraction, so that a abrasive particle flow can enter the blind hole more smoothly; and the abrasive particle flow used is a liquid metal abrasive particle flow, metal particles in the liquid metal abrasive particle flow can form good contact with the surface of the to-be-machined workpiece under the action of a rotating magnetic field generated by an annular permanent magnet, micro cutting is carried out, mechanical deformation is not generated on the surface of the blind hole of the to-be-machined workpiece, the polishingefficiency is faster, the effect is better, and micro cutting is carried out.

The present invention provides a immersion type cooling press bearing shell, the inner surface and two ends with flanges of the existing semicircular column shaped bearing shell will not be changed, the back of the bearing shell is provided with several cooling water tanks along the circumference or axial direction, and the tanks are connected to form a continuous water transfer tank, after assembling the bearing shell with corresponding bearing block, a closed, single and uninterrupted cooling water transfer channel will be obtained by matching a water outlet and a water inlet. A back reinforcing rod of the bearing shell is formed between two neighboring water tanks of the bearing shell. The outer surface of the bearing shell is provided with a water transfer cooling tank, thereby the cooling area of the bearing shell is larger, the external cylindrical surface and the reinforcing rod of the whole bearing shell are all immersed in the cooling water of the water transfer cooling channel, the cooling effect is good without heat distortion; secondly, the reinforcing rod reinforces the strength and the steel degree of the bearing shell, when reloading to operate, there is non mechanical deformation, thereby the service life of the bearing shell is prolonged, and the production cost is reduced.

The invention discloses a polishing device and method for polishing a blind hole of a non-conductive workpiece. The polishing device comprises a working table, a movable positioning device, a rotatingrunner device and a rotating magnetic field device, wherein the movable positioning device is arranged on the working table; the rotating runner device is arranged on the movable positioning device;the rotating magnetic field device is fixed onto the working table on the inclined downward part of the rotating runner device. According to the polishing device and method for polishing the blind hole of the non-conductive workpiece provided by the invention, the blind hole of a blind hole workpiece can be polished, and the blind hole of the workpiece to be polished is exhausted so as to be at anegative pressure state, so that an abrasive particle flow can smoothly enter the blind hole. According to the polishing device and method for polishing the blind hole of the non-conductive workpieceprovided by the invention, an orifice of the workpiece to be process is slantways upwards, the abrasive particle flow in the polishing process is gathered in the blind hole, and the adopted liquid metal abrasive particle flow produces turbulent flow under a rotating magnetic field, so that compared with traditional media such as water and oil, liquid metal has the characteristics of high density and good flow controllability.