78results about How to "Meet the process requirements" patented technology

The invention relates to the technical field of metal materials, in particular to a high-strength steel material for mine roadway support and a preparation method thereof, and the high-strength steel material comprises the following components in percentage by weight: 0.04 to 0.10 percent of C, 0.15 to 0.45 percent of Si, 1.20 to 1.80 percent of Mn, 0.20 to 0.50 percent of Cu, 0.15 to 0.40 percent of Cr, 0.10 to 0.35 percent of Ni, 0.08 to 0.25 percent of Mo, 0.015 to 0.045 percent of Nb, 0.03 to 0.08 percent of V, 0.008 to 0.025 percent of Ti, 0.005 to 0.020 percent of RE and the balance of Fe. The preparation method comprises the steps of smelting and refining, continuous casting, heating, rough rolling, finish rolling, segmented controlled cooling and medium-temperature tempering (450-550 DEG C), R is larger than or equal to 620 MPa, A is larger than or equal to 18%, the yield ratio is smaller than or equal to 0.90, KV at 0 DEG C is larger than or equal to 100 J, and the deep-well high-stress roadway support is suitable for deep-well high-stress roadway support.

This invention provides a multi-directional air intake silicon carbide coating chemical vapor deposition (CVD) device, belonging to the technical field of CVD equipment. It includes a CVD device body, a gas delivery system, and a control system. The CVD device body has a reaction chamber with gas inlets on its sidewalls, top, and bottom. The gas delivery system has a gas output end, which is connected to the gas inlets on the sidewalls and top of the reaction chamber via pipelines, and is used to introduce gas into the reaction chamber. The control system is connected to the gas delivery system and is used to control the gas flow rate and pressure in the multiple pipelines. By providing gas inlets at the top, bottom, and sidewalls of the reaction chamber and controlling the gas flow rate and pressure in the pipelines, this invention can control the gas flow into the reaction chamber from different directions, achieving multi-directional air intake and ensuring a uniform silicon carbide coating thickness distribution to meet processing requirements.

The utility model discloses a kind of worm processing comprehensive machine tools, including bed, the upper surface both sides of bed are fixedly installed with two symmetrical distribution primary bearing seat, one number screw rod is rotatably connected between two primary bearing seats, the outer thread of one number screw rod is connected with horizontal slide, the output shaft of one number motor is fixedly connected to one end of one number screw rod, symmetrically distributed secondary bearing seat is fixedly installed in the front and back two ends of horizontal slide, two secondary bearing seats are rotatably connected with two number screw rod, two number screw rod and one number screw rod are perpendicularly arranged between each other, the outer thread of two number screw rod is connected with longitudinal slide, the output shaft of two number motor is fixedly connected to one end of two number screw rod, equipment seat is fixedly installed on the upper surface of longitudinal slide, the machine tool of the utility model whole structure is simple, floor area is small, manufacturing difficulty is low, effectively reduce the enterprise's early purchase and later use cost, with good use economy, suitable for small and micro manufacturing enterprises development use.

This invention relates to a high-power, low-loss Li-based microwave ferrite for LTCC and its preparation method, belonging to the field of electronic ceramics technology. The ferrite, based on its respective standard components, contains the following content: Li₂CO₃ 11.80–12.24 mol%, ZnO 19.87–20.41 mol%, TiO₂ 10.78–11.08 mol%, Mn₃O₄ 0.39–2.65 mol%, Co₃O₄ 0.04–0.58 mol%, Fe₂O₃ 54.70–56.18 mol%, and Bi₂O₃ 0.09 mol%. This invention introduces high-valence Mn ions into the Li-based microwave ferrite, altering the ferrite grain size distribution, particularly increasing the proportion of fine grains, thus improving the spin linewidth. Based on grain refinement, the introduction of an appropriate amount of Co ions with rapid relaxation characteristics further enhances the ferrite's spin linewidth.

The application relates to the technical field of plastic intelligent manufacturing, and discloses a machine vision driven plastic master batch feeding and cleaning parameter intelligent regulation and control system. The system comprises the following: an image acquisition and feature extraction module which, based on the equipment running state, identifies and extracts elements such as feeding speed and cleaning flow, maps to a preset parameter field and establishes an associated identifier, and forms a standardized feeding and cleaning data unit. A parameter matching and regulation rule generation module searches a database to match regulation rule conditions, calculates a parameter regulation complexity factor, compares parameters with constraint values, and generates a single parameter matching state judgment. A multi-working-condition correlation modeling module finds different working-condition shared entities, calculates a cross-working-condition correlation closeness index, and constructs a multi-working-condition correlation graph. An abnormal state identification and parameter correction module combines the associated working-condition judgment to calculate a risk score and generates a comprehensive regulation risk prompt. The system realizes intelligent regulation and control and abnormal identification of plastic master batch feeding and cleaning parameters.

This utility model discloses a high-efficiency ink thinner adding device, including a frame, a support platform, a first hose, and a second hose. An ink turnover box is located on the top of the frame, and a support plate is located on the front side of the ink turnover box. A lifting cylinder is installed in the middle of the support plate, with the piston rod of the lifting cylinder pointing downwards and connected to a lifting plate. Several injection rods are evenly spaced laterally on the rear side of the lifting plate. The first hose connects the ink turnover box to the top inlet of the injection rods. Two symmetrical fixing plates are located on the rear side of the frame, and a thinner transfer pipe is connected to the fixing plates. The second hose connects the thinner transfer pipe to the side opening of the injection rods. The frame is also connected to a positioning and clamping mechanism. Multiple injection rods can accurately align with the material container to complete the adding and filling process, improving production efficiency and reducing manual labor intensity.

The utility model discloses a riveting press for a transmission shaft with a quick-change connector, and relates to the field of machining and assembling. Comprising a riveting press body, a riveting press working device, a riveting head, a sliding buckle, a limiting column and a pressure sensor. The riveting head is installed below the riveting press working device, the riveting press working device and the riveting head are connected through the sliding buckle, rapid disassembly and assembly of the riveting head are achieved, the limiting column is used for fixing the riveting head, riveting stability is ensured, manual installation errors are reduced, and replacement efficiency is improved. The pressure sensor is arranged below the riveting head, the pressure value in the riveting process can be monitored in real time, the pressure sensor is in linkage with the control box for feedback adjustment, it is ensured that the pressure of each riveting point is consistent, and the riveting quality and the product reliability are improved.

The utility model relates to the technical field of valve core machining, and discloses a precision instrument lathe for a faucet valve core, which comprises a lathe body, a cutter head is arranged on the top surface of the lathe body, a placing block is fixedly connected to the top surface of the cutter head, and a dismounting assembly is arranged on the top surface of the placing block. An infrared positioner is connected to one side of the dismounting assembly in an inserted mode, and a hydraulic rod is fixedly connected to the interior of the placing block. According to the precision instrument lathe for the faucet valve element, through the arrangement of the clamping assembly, when the precision instrument lathe is used, a rotating block is rotated, the rotating block rotates to drive an inserting rod to move, and the inserting rod is pulled out of the interior of a cutter, so that the cutter can be replaced, various machining operations can be achieved on the same lathe, and the machining efficiency is improved. The machining requirements of different parts are met, the universality and flexibility of a machine tool are improved, meanwhile, the phenomenon that a cutter is abraded after being used for a long time can be avoided, and therefore the production quality of the device is improved.

A kind of secondary machine tool centering method of fir type wheel groove of steam turbine rotor, it is related to a kind of rotor centering method, to solve the problem that steam turbine rotor fir type wheel groove secondary machine tool machining cannot be centered.The present application installs shaft on machine tool spindle, moves shaft into wheel groove from wheel groove end face, makes the depth reference position line of shaft coincide with the depth size reference line position of wheel groove;When clearance value L1 is greater than L2, rotate rotor impeller counterclockwise;Conversely, rotate rotor impeller clockwise;If clearance value L1 is greater than L3, machine tool spindle is adjusted upwards along Y axis;Conversely, machine tool spindle is adjusted downwards along Y axis;When clearance value L1, clearance value L2, clearance value L3 and clearance value L4 are equal to theoretical value M;Shaft is taken off from machine tool spindle, wheel groove milling cutter for product machining is installed, product machining is carried out, and centering is completed.The beneficial effect is to realize the centering of rotor wheel groove secondary machine tool.

The application discloses an active circuit breaker assembly, a motor controller, an electric assembly and a vehicle. The active circuit breaker assembly comprises a first conductive sheet and an initiating device. A first side of the first conductive sheet is provided with a first gap and a second gap. The first conductive sheet forms a first necking section corresponding to the first gap and a second necking section corresponding to the second gap. The initiating device has a punch for impacting the first necking section and a connecting section, so that the first necking section is fractured, and the second necking section serves as a rotation fulcrum of the connecting section. The size of the first gap in a first direction is greater than the thickness of the first necking section in a third direction, and the first direction, the second direction and the third direction intersect with each other. By optimizing the structural design of the first conductive sheet and cooperating with the impact of the punch on the first necking section and the connecting section, the process requirement of blanking forming is met while ensuring reliable disconnection of the first conductive sheet, the machining process is reduced, and the production cost is reduced.

The utility model discloses a kind of automobile sunroof guide rail top bending device with adjustable top bending radian, it is related to automobile sunroof guide rail technical field, including workbench, the top of workbench is provided with bending column, the top of workbench is provided with arc slot, guide wheel that can be moved along arc slot is arranged on the workbench, top bending driving component for driving guide wheel to move along arc slot to be used to top bending guide rail is further provided on the workbench, the top bending radian of guide rail is defined, and radian adjusting component is provided on the workbench, the side of bending column is provided with side plate, by starting second motor, the output end of second motor drives first gear to rotate, the rotation of first gear will drive arc rack to slide in arc seat. With the sliding of arc rack in arc seat, the abutment portion of arc rack side will change position accordingly. By changing the position of abutment portion, the accurate adjustment and control to guide rail top bending radian are realized.

This invention relates to the field of machining technology, and discloses a machining method for insert placement and the insert itself. The machining method for insert placement includes the following steps: Step S10, the insert placement blank includes an open area and a closed area. The insert placement blank is clamped onto a CNC machine tool, and the open area of ​​the insert placement blank is CNC machined to obtain a semi-finished insert placement product with a 0.03mm wire EDM machining allowance in the open area. The height of the open area of ​​the semi-finished insert placement product is greater than or equal to 20mm. Step S20, the open and closed areas of the semi-finished insert placement product are wire EDM machined to obtain multiple finished inserts. This invention, by reserving a 0.03mm allowance in CNC machining, is reasonably designed to avoid wire clamping and wire EDM springback problems caused by slow wire cutting, ensuring the surface finish of the product and meeting the machining requirements, while not affecting the wire EDM machining efficiency.

This invention provides a slide rail for a high-precision servo CNC punch press with a double-link toggle mechanism, comprising: a punching table, a punch press body, a punching device, a slider, and a slide groove. The punch press body is disposed on the top of the punching table. Two slide grooves are respectively formed on both sides of the inner cavity wall of the punch press body. A lead screw is rotatably mounted inside the slide groove. The slider is threadedly engaged with the outer surface of the lead screw. The punching device is fixedly connected to the surface of the slider. This invention provides a slide rail for a high-precision servo CNC punch press with a double-link toggle mechanism. By adding rollers to the surface of the punching device and allowing them to slide up and down inside a limiting groove, the double constraint of the lead screw and rollers maintains the accuracy of the punching device's sliding on the slide rail surface. This avoids the wear of the lead screw affecting the up and down movement of the punching device, preventing lateral forces that could affect the punching accuracy, thus meeting the processing requirements of precision parts and improving the practicality of the device.

This utility model provides a wool opening device, belonging to the field of wool processing technology. It includes a material box containing an opening mechanism for processing wool. The opening mechanism includes a feeding component and an opening component. The feeding component feeds wool into the material box, and the opening component is located below it, used to open the wool fibers. The feeding component includes a feeding ramp symmetrically mounted on the top of the material box and a feeding shaft symmetrically mounted above the ramp. Several feeding guide rods are distributed on the feeding shaft. This utility model can shred wool using meshing crushing rollers, avoiding problems such as uneven stress on wool fibers during opening due to improper or inaccurate roller coordination, and potential damage to some wool fibers due to over-opening.

The application provides a packaging substrate and a processing method thereof. The packaging substrate comprises a ceramic substrate, a first build-up structure and a second build-up structure. The ceramic substrate comprises a ceramic plate member having a conductive hole penetrating through the ceramic plate member along the thickness direction of the ceramic plate member, a conductive column is arranged in the conductive hole, one side of the ceramic plate member in the thickness direction is provided with a first conductive layer, and the first conductive layer is electrically connected with one end of the conductive column. The first build-up structure is arranged on the side of the first conductive layer away from the ceramic plate member, the first build-up structure is electrically connected with the first conductive layer, the first build-up structure is formed by an RDL process, and the first build-up structure is used for electrical connection with a chip. The second build-up structure is arranged on the other side of the ceramic plate member in the thickness direction, the second build-up structure is electrically connected with the conductive column, the second build-up structure is formed by an MSAP process, and the second build-up structure is used for electrical connection with a PCB. The packaging substrate of the embodiment of the application has high flatness and can meet the demand of interconnection with a chip with a smaller spacing on the basis of being connected with the PCB.

A water-cooled plate structure for cooling high-power-density power electronic devices and its design method based on SIMP topology optimization are disclosed. The structure includes a water-cooled plate body with an inlet, an outlet, and a flow channel region. The flow channel region includes an inlet guiding region and a parallel flow channel region. The inlet guiding region contains several double-elliptical guiding structures arranged in a needle-fin array. The parallel flow channel region consists of several dispersed independent flow channels, each corresponding to a heat source region of a chip. This invention, through the coordinated design of the inlet guiding region and the parallel flow channel region, achieves efficient heat dissipation and good temperature uniformity while ensuring low flow resistance, meeting the heat dissipation requirements of high-power electronic devices.

The invention discloses battery-grade lithium carbonate as well as a preparation method and application thereof, and the preparation method comprises the following steps: synchronously introducing a lithium-containing solution and carbon dioxide bubble water into a reaction device, and reacting to obtain lithium carbonate; the carbon dioxide bubble water is prepared by adopting the following method: simultaneously introducing carbon dioxide and water into a shear pump, and shearing and mixing to prepare the carbon dioxide bubble water. According to the method, the traditional gas-liquid reaction that carbon dioxide is directly introduced into the lithium-containing solution is creatively transformed into a gas-liquid-liquid reaction system that carbon dioxide bubble water prepared in advance and the lithium-containing solution are synchronously introduced, so that the product purity and stability are remarkably improved, and the bottleneck of a traditional intermittent process is broken through; the preparation method is simple, the production capacity and efficiency are remarkably improved, industrial large-scale production is easy to realize, and the obtained product lithium carbonate crystal is complete in growth, concentrated and controllable in particle size distribution and regular in morphology, and meets the processing requirements of high-end battery materials.

The mixer comprises a plurality of raw material barrels, a plurality of peristaltic pumps, a controller and a mixing barrel, a feed port is formed in the top of the raw material barrel, and a discharge port is formed in the bottom; different wine bodies are respectively arranged in the plurality of raw material barrels; a pipeline is arranged at the discharge hole; the peristaltic pump is arranged on the pipeline; the controller is electrically connected with the peristaltic pumps and controls the pumping speed of the peristaltic pumps. The mixing barrel is arranged below the raw material barrel; one end of a pipeline connected with the discharge hole is communicated with the interior of the mixing barrel; a stirring device is arranged in the mixing barrel; and a discharge opening is formed in the bottom of the mixing barrel. The problem that the matching control precision is insufficient due to the fact that wine blending is controlled through an adjusting valve is solved.

The invention relates to the technical field of petrochemical engineering, in particular to a pre-flash tower bottom oil diversion and emergency oil return system which comprises a switching and shunting module, a pressure mixing module and a cooperative control module. Boosting the pressure of the slurry oil and then dividing the slurry oil into a first branch flow and a second branch flow; the first branch is communicated with a first conveying pipeline, the first conveying pipeline is communicated with a wax oil mixing part, and slurry oil and product wax oil from the vacuum tower are mixed at the wax oil mixing part; the second branch is communicated with a second conveying pipeline, and the second conveying pipeline is communicated with an emergency connector. According to the invention, integrated hardware multiplexing and cooperative control are carried out on the load optimization process and the blockage emergency oil return function of the vacuum tower, and embedded active safety protection is constructed while load reduction and efficiency improvement of the vacuum tower are realized, so that the processing load and operation continuity of the device are systematically improved.

The utility model relates to the technical field of semiconductor component manufacturing, in particular to a wafer basket for feeding and discharging of a manipulator, which comprises a bottom plate, upright posts, guide posts and a top plate. Stand columns are arranged on two sides of the tail and the middle of the top of the bottom plate respectively, guide columns are arranged on two sides of the head of the top of the bottom plate respectively, and the stand columns and the guide columns are equal in height; the top plate is fixed to the tops of the stand columns and the guide columns. A plurality of grooves which are provided with three open surfaces and are used for mounting wafers are uniformly distributed in the vertical directions of the stand columns and the guide columns, the non-open side of the groove of the tail stand column is arranged on the tail side, and the non-open sides of the grooves of the middle stand column and the head guide column are arranged on the outer sides. The wafer lifting basket for feeding and discharging of the manipulator is composed of the base plate, the stand columns, the guide columns, the top plate and other simple components, and compared with a special wafer conveying box and a wafer loader, the wafer lifting basket is simpler in structure, so that the manufacturing cost is reduced, the wafer lifting basket is suitable for small-batch wafer test verification scenes, and the problem that the cost of an existing scheme is too high is effectively solved.

The utility model discloses a clamping device for composite pipe production, which comprises a worktable, a material collecting groove is arranged at the top of the worktable, a first threaded rod and a first guide rod are arranged in the material collecting groove, two movable seats are sleeved outside the first threaded rod in a threaded manner, and a bottom plate is arranged at the top of each movable seat. A fixed side plate is fixedly arranged on one side of the top of the bottom plate, a movable side plate is slidably arranged on the other side of the top of the bottom plate, a first through opening is formed in the surface of the fixed side plate, a second threaded rod and a second guide rod are arranged in the first through opening, a lifting block sleeves the second threaded rod in a threaded mode, and a pressing plate is arranged on the side face, close to the movable side plate, of the lifting block. A second through opening is formed in the surface of the movable side plate, a bearing plate is arranged at the bottom of the side face of the movable side plate, and a through groove is formed in the surface of the fixed side plate. The device not only meets the processing requirements of composite pipes with different lengths, but also is suitable for pipes with different diameters, is simple and convenient to operate, greatly improves the applicability and practicability, and is worthy of popularization and use.

This utility model relates to the field of mechanical design and automation technology, and in particular to an automatic cleaning dispensing machine. This utility model provides an automatic cleaning dispensing machine, including a body, a gantry frame, an electric slide rail one, a sliding plate, an electric slide rail two, a mounting plate, a geared motor, and a rotating shaft. The gantry frame is fixed to the rear side of the body. The electric slide rail one is fixed to the upper inner side of the gantry frame. A sliding plate is slidably connected to the electric slide rail one, and the sliding plate is slidably connected to the front side of the gantry frame. The electric slide rail two is fixed to the front side wall of the sliding plate. The mounting plate is slidably connected to the electric slide rail two. The geared motor is fixed to the front side wall of the mounting plate, and a rotating shaft is fixed to the output shaft of the geared motor. This utility model uses an air jet to clean the workpiece and a dry ice cleaning machine to clean the dispensing head, simultaneously solving the problems of insufficient workpiece surface cleaning leading to dispensing quality defects and frequent manual maintenance due to dispensing head clogging in existing technologies. It achieves full automation of the workpiece pretreatment and dispensing equipment self-cleaning process.

An optical proximity correction method and system, a design rule checking method and system, a device and a storage medium; wherein the optical proximity correction method comprises: obtaining a pattern splitting rule, including: a first type of rule for determining that there is a conflict when there is a first critical positional relationship between at least a first number of adjacent main patterns; a second type of rule for determining that there is a conflict when there is a second critical positional relationship between at least a second number of adjacent main patterns, the second number being greater than the first number, so that in the step of splitting a plurality of main patterns on a layout pattern onto a plurality of masks based on the pattern splitting rule, less than the second number of adjacent main patterns with the second critical positional relationship can be placed on the same mask, thereby improving the degree of freedom of pattern splitting while ensuring that the mask pattern obtained after pattern splitting meets the process requirements, and reducing the demand for layout area and saving costs.

The invention discloses a crushing and collecting device for a vulcanizing agent for rubber, belongs to the technical field of vulcanizing agents for rubber, and solves the problems that an existing device is low in separation efficiency, poor in dust collecting effect and incapable of separating particles with different granularities. The device comprises a bottom plate, a crushing mechanism, a cyclone separator and a bag-type dust collector are arranged on the bottom plate from left to right, and a driving mechanism and an air inlet mechanism are arranged on the right side of the crushing mechanism; the crushing mechanism comprises a scattering assembly and a crushing roller, and the driving mechanism can synchronously drive the scattering assembly and the crushing roller to operate and drive the air inlet mechanism to work at a high speed. After being crushed by the crushing mechanism, a vulcanizing agent is conveyed to the cyclone separator through the air inlet mechanism to separate large particles, and small particles enter the bag-type dust collector through the connecting pipe to be subjected to secondary separation and are respectively collected by the corresponding collecting boxes. According to the device, the crushing fineness and uniformity of the vulcanizing agent are improved, graded collection of particles with different particle sizes is achieved, the dust collection effect is good, multiple assemblies are driven by single power to operate synchronously, and the device operates more stably and economically.

The utility model discloses a liquid crystal display (LCD) panel appearance detection machine which comprises a machine table, a feeding conveying mechanism, a first detection mechanism, a second detection mechanism, a finished product discharging mechanism, an NG product discharging mechanism, a first taking and placing mechanism, a second taking and placing mechanism and a transverse moving mechanism are arranged on the machine table, the first detection mechanism is arranged at the discharging end of the feeding conveying mechanism, and the second detection mechanism is arranged at the discharging end of the NG product discharging mechanism. The second detection mechanism is arranged adjacent to the first detection mechanism, the feeding end of the NG product discharging mechanism is arranged adjacent to the second detection mechanism, the feeding end of the finished product discharging mechanism is arranged adjacent to the feeding end of the NG product discharging mechanism, and the transverse moving mechanism extends from the feeding conveying mechanism to the finished product discharging mechanism. The first taking and placing mechanism and the second taking and placing mechanism are both arranged on the transverse moving mechanism. Compared with the prior art, on the basis of the principle, manual operation steps are greatly reduced, so that the automatic performance is higher, the visual detection efficiency is higher, and the process requirements are better met.

The application discloses a kind of thin-walled sector structure part semicircle reference processing method, bushing, method includes: based on the structure of part Formulation include heat control process route of shape control;Semi-finishing is carried out to part;After semi-finishing, the part is clamped using heat shape control special fixture, heat shape control processing is carried out, and preliminary control heat shape control after part is obtained;Finish machining fixture is installed on lathe and is aligned;After heat shape control, the part to be machined is clamped on the aligned finish machining fixture, and the part to be finished is fixed by aligning inner hole and applying floating support;Install machine clamp tool and select finish machining blade, set parameter;Semi-circular reference plane of part is carried out finish machining cutting, and the combined tool path of inside-out and outside-in is used to tool path, and processing is completed.The application effectively controls the deformation amount before part finish machining, enhances the clamping rigidity of semicircular weak place, makes machining semicircular reference plane positioning reliable, and improves the quality and efficiency of processing.

This utility model provides a novel internal support mandrel for pipe bending, comprising: a mandrel body; an inner support core disposed on the inner side of the mandrel body; a connecting bolt disposed at one end of the inner support core; a through-bead threadedly connected to the outer side of one end of the connecting bolt; a spring disposed at the other end of the inner support core; and a screw threadedly connected to the inner side of the mandrel body. This novel internal support mandrel for pipe bending allows for adjustment of the position of the inner support core by rotating the through-bead, thereby changing the compression of the spring and flexibly adjusting the magnitude of the supporting force. In this way, the internal support mandrel can provide appropriate supporting force according to the needs of pipes with different diameters and bending angles, improving the accuracy of pipe bending.

A mining butterfly chain chaining tool die comprises a chaining die, an ejector and an extrusion roller. The chaining mold comprises an upper mold and a lower mold which can be butted together; the upper end face of the upper die is provided with a first groove, the front end of the upper die is provided with a first protrusion, the first protrusion and the front end of the upper die form a first arc-shaped part, the upper end face of the lower die is provided with a second groove, the front end of the lower die is provided with a second protrusion, and the second protrusion and the front end of the lower die form a second arc-shaped part. The end face of the first protrusion and the end face of the second protrusion are in butt joint and attached, so that the first arc-shaped part and the second arc-shaped part form an arc-shaped groove for shaping the vertical ring forging material, and the first groove and the second groove form a sinking groove for positioning the butterfly-shaped flat ring. The ejector directly faces the sinking groove of the chaining mold; and the extrusion rollers are symmetrically mounted on two sides of the chaining die. By means of the special butterfly chain chaining combined die which is specially designed, it can be guaranteed that the process requirement can be met during chaining, and the forming quality of products is guaranteed.

According to the engine cylinder cover cleaning device, a cylinder cover rear end face positioning device and a cylinder cover front end face positioning device are correspondingly installed on an engine body top cover and a cleaning station bottom plate, and a top face single-cylinder closed hole cleaning mechanism and a bottom face single-cylinder closed hole cleaning mechanism are oppositely arranged on one side of the top face and one side of the bottom face of a cylinder cover to be cleaned. The top face single-cylinder closed hole cleaning mechanism and the bottom face single-cylinder closed hole cleaning mechanism are installed on the portion, on the outer side of the cylinder cover to be cleaned, of the frame. A servo sliding table is vertically installed on the machine body top cover, a lead screw is vertically installed on the machine body top cover and located on one side of the servo sliding table, the lead screw is connected with a lifting servo motor, the frame is connected with the lower end of a pull rod, the upper end of the pull rod is connected with a sliding block, the sliding block is installed on the servo sliding table in a sliding mode, and a connecting plate is installed on the lead screw and connected with the sliding block. The cylinder cover is vertically placed and cleaned, through lifting of the cleaning mechanism, hole closing cleaning, namely single-cylinder hole closing cleaning, of a water jacket cavity of the cylinder cover is achieved according to cylinder areas, the process requirement for hole closing cleaning of a cleaning station of a cleaning machine can be met, the structure is compact, and the automation degree is high.

The application discloses a substrate grinding workbench and a substrate grinding equipment, and relates to the technical field of substrate grinding equipment, in particular to a substrate grinding workbench and a substrate grinding equipment. The substrate grinding workbench comprises a mounting seat, a rotary driving part arranged below the mounting seat, and a ceramic suction disc arranged above the mounting seat and used for sucking a substrate to be ground. An auxiliary structure is arranged at the contact position of the mounting seat and the ceramic suction disc, and the auxiliary structure can form a vacuum in at least a partial area of the contact position, so that the ceramic suction disc is tightly attached to the top of the mounting seat. When the ceramic suction disc is vacuum-sucked to the top of the mounting seat, fixed bolts are installed in a set order, so as to ensure the flatness of the top surface of the ceramic suction disc.