37 results about "Punching shear" patented technology

The utility model provides a numerical control punching and shearing machine. The cutting table is fixedly installed in the middle of one side of the top of the workbench. The cutting table comprises a fixing block, an opening groove and scale values. The two fixing blocks are fixedly installed on the two sides of the top of the workbench respectively, the two ends of the limiting rod are fixedly connected to the surfaces of the two fixing blocks respectively, a servo motor is fixedly installed on the surface of one fixing block, and an output shaft of the servo motor is fixedly connected with a threaded rod. According to the numerical control punching and shearing machine, the bottom of the baffle is connected with the fixing block through the sliding block, a user holds the pull rod to turn over the rotating plate and the baffle through the rotating shaft, the baffle pulls the supporting device to turn over, a bus cut in the supporting device is taken out, and the device is simple in structure, high in practicability and high in practicability. And an operator can conveniently, quickly and conveniently go to the cut bus, the working safety of the operator is protected, and the practicability and the safety of the device are improved.

The invention discloses a continuous stamping and shearing mechanism for aluminum materials. The continuous stamping and shearing mechanism for the aluminum materials comprises a punch, a lower die, a top bottom, an ejector pin and an elastic part, wherein the lower die corresponds to the punch and is provided with a knife edge; the top bottom is movably matched with the interior of the knife edge of the lower die; the punch is in zero clearance fit with the inner wall of the knife edge of the lower die; the punching shearing depth of the punch in a die closing state is set to be the thickness of the aluminum material + 0.05 mm, and the top and the bottom synchronously descend by the same height along with the punch. According to the aluminum material continuous stamping and shearing mechanism and the stamping and shearing process, through zero-clearance fit between a punch and a lower die, precise linkage between a top and a bottom and an elastic piece and stable guiding of multiple layers of die plates, a rigid physical platform capable of being precisely regulated and controlled is provided for high-precision shearing; a standardized process of positioning, zero-clearance semi-shearing, reset keeping, continuous feeding and stable discharging is executed, and the structural advantage is converted into stable and repeatable process output.

The application discloses a bearing capacity calculation method and device of a pile structure with a bearing platform and a storage medium, and solves the problem that the design method is relatively complex and the calculation result is not accurate in the prior art. The calculation method comprises the following steps: obtaining size parameters and adjacent soil parameters of a bearing pile, a bearing platform and a foundation pile in the pile structure with the bearing platform; inputting the size parameters and the adjacent soil parameters into a bearing capacity calculation model to obtain bearing capacity data output by the bearing capacity calculation model; and the bearing capacity data at least comprises: a pushing force of a rear soil body on the bearing pile, a counterforce of the bearing platform, an eccentricity of the counterforce of the bearing platform, a stress of the counterforce of the bearing platform and an axial pressure at a bottom end of the bearing pile, which are obtained by solving a soil pressure analysis model based on the bearing pile; and a positive section bending moment of the bearing platform, a downward punching shear damage of the bearing pile on the bearing platform and an upward punching shear damage of a rear row of foundation piles on the bearing platform, which are obtained by solving an asymmetric force analysis model based on the bearing platform.

The utility model relates to punching and shearing machine technical field discloses a punching and shearing mechanism of steel sheet mesh punching and shearing machine, including punching and shearing frame, the inner wall sliding connection of punching and shearing frame has the pressing plate, the top fixed connection of pressing plate has the negative pressure pipe, the inside fixed connection of pressing plate has the suction pipe, one side surface fixed connection of punching and shearing frame has the collection box, one end fixed connection of collection box has the suction pipe. The utility model has the following advantages and effect: the negative pressure pipe inside produces the negative pressure, shunts to the suction pipe, prevents the splashing of debris under the action of suction, and debris is sucked into the suction pipe, thereby enters the negative pressure pipe, and the corrugated expansion bend pipe can follow the lifting of pressing plate and expand and contract, and the flexibility is stronger and can present multiple forms, and the debris is filtered by the filter screen after entering the collection box, and the debris falls in the collection net box and is collected, the filter screen can be disassembled and cleaned, and the debris is collected conveniently during the punching and shearing process.

This invention provides a reinforced, irregularly shaped cross-section steel-concrete composite column base joint, comprising an irregularly shaped cross-section steel-concrete composite column. The lower perimeter of the irregularly shaped cross-section steel-concrete composite column is surrounded by a reinforcing steel reinforcement cage, which includes upward and downward reinforcing bars embedded in the foundation. By adding a reinforcing steel reinforcement cage around the irregularly shaped cross-section steel-concrete composite column, and embedding the upward and downward reinforcing bars of the cage into the foundation, this invention effectively enhances the connection between the column base joint and the surrounding foundation concrete, thereby improving the punching shear resistance and seismic resistance of the column base joint, and ultimately reducing the embedment depth of the embedded column base.

The application discloses a modular slab-column structure system, which comprises: a plurality of support columns extending along a first direction; and a floor slab installed on one side of the plurality of support columns in the first direction, wherein the floor slab comprises a base plate and a plurality of reinforcing plates, the base plate is provided with a plurality of notches at edges thereof, the plurality of notches and the plurality of support columns are in one-to-one correspondence, the plurality of reinforcing plates are respectively arranged in the plurality of notches and connected with the base plate, and the structural strength of the reinforcing plates is higher than that of the base plate, and the floor slab is connected with the support columns through the reinforcing plates. According to the modular slab-column structure system, the part of the floor slab connected with the support columns is replaced by the reinforcing plates with higher strength, so that the connection part of the floor slab and the support columns can bear greater shearing force, the punching shear resistance of the slab-column structure can be improved, the safety and reliability of the slab-column structure can be improved, and the safety hidden danger of the modular slab-column structure system can be reduced.

This invention discloses a method for reinforcing existing reinforced concrete floor slabs for eVTOL (Emergency Virtual Transport Operator) landing pads against punching shear, belonging to the field of civil engineering reinforcement technology. The method includes: first, calculating the equivalent dynamic impact load based on eVTOL takeoff and landing parameters and the existing floor slab condition; second, using a modified punching shear failure angle model based on stiffness gradient, sequentially calculating the modified punching shear angle, quantitatively designing the thickness of the upper ultra-high performance concrete (UHPC) layer and the amount of the lower fiber-reinforced polymer (FRP) layer and the anti-peeling anchor density; finally, implementing a composite reinforcement construction method of "upper layer and lower layer" according to design specifications. This method significantly improves the punching shear resistance of the existing floor slab by introducing a high-stiffness UHPC layer in the upper part of the existing floor slab to expand the punching shear cone angle, and by setting an FRP layer and anti-peeling anchors in the lower part to limit crack propagation. Through the synergistic effect of the upper and lower layers, it achieves rapid reinforcement and renovation of low-altitude aircraft landing pads.

The invention provides an electronic plug-in and a crimping terminal thereof, the crimping terminal comprises two opposite surfaces, a crimping part, a base part and a buffer structure, the crimping part and the base part are respectively located at two opposite ends of the crimping terminal, the buffer structure comprises at least two connecting parts which are spaced, each connecting part comprises at least two connecting arms which are connected, and the connecting arms are connected with the crimping part. Each connecting arm is formed by linearly extending, the connecting arms of the two connecting parts surround to form a closed polygonal hole penetrating through the two surfaces of the crimping terminal, a buffer structure is formed through simple appearance design, and the crimping terminal can be manufactured only through punching shear processing, so that the manufacturing difficulty and the production cost of the crimping terminal are greatly reduced, and the production efficiency of the crimping terminal is improved. And the finished product size of the crimping terminal and the deformation degree during buffering are easy to control.

The utility model discloses a novel multifunctional punching and shearing mechanism, including punching and shearing mechanism base, the top of punching and shearing mechanism base is fixedly arranged with punching and shearing mechanism main part, both sides of punching and shearing mechanism main part top are fixedly arranged with the ring bolt, the middle part of punching and shearing mechanism main part surface is equipped with two board placement, one side of punching and shearing mechanism main part is equipped with initiative structure, one end of initiative structure is equipped with shearing structure, one side of shearing structure is equipped with the stamping structure, the utility model relates to a novel multifunctional punching and shearing mechanism, distinguish from most punching and shearing machine on market, have extensive adaptability and flexibility, and its shearing module and stamping module are completely independent and can be operated alone, and the user can flexibly select to start the shearing module, the stamping module according to actual working condition and processing demand, or make both work together, can adapt to different production tasks and processing scene.

The application provides a peripheral corbel prestressed cable type self-resetting special-shaped cross-section embedded column foot joint, which comprises a special-shaped cross-section steel pipe concrete column, a corbel is arranged at the outer extension end of the lower part of the special-shaped cross-section steel pipe concrete column, a cable is arranged on the corbel through prestress, and the corbel and the cable are both in the foundation and used for enhancing the connecting capacity of the column foot joint. The application can effectively enhance the connecting capacity of the column foot joint and the surrounding foundation concrete through the peripheral corbel and the cable, thereby improving the punching shear resistance and the anti-seismic capacity of the column foot joint, achieving the purpose of reducing the embedding depth of the embedded column foot, and the column foot joint has a certain self-resetting capacity due to the prestress of the cable.

This utility model relates to the field of silicon steel sheet processing technology, and discloses a punching and shearing device for transformer core silicon steel sheets. It includes a gantry frame mounted above a punching and shearing table, with a punching and shearing machine movably fitted inside the gantry frame; a first pressure roller rotatably connected to the punching and shearing table, located on the side of the punching and shearing machine near the first conveyor belt; a first drive assembly mounted on the punching and shearing table, the drive end of which is connected to the first pressure roller, allowing for an adjustable distance between the first pressure roller and the punching and shearing table; a second pressure roller rotatably connected to a guide table, positioned on the top surface of the guide table near the punching and shearing table, with an elastic tendency towards the top surface of the guide table; and a third pressure roller rotatably connected to the guide table, positioned on the top surface of the guide table near the second conveyor belt, also with an elastic tendency towards the top surface of the guide table. This device can improve the punching and shearing quality of silicon steel sheets and increase production efficiency.

A cup cover forming and ultrasonic heat sealing all-in-one machine comprises a plate conveying mechanism, a preheating mechanism, a forming mechanism, a punching mechanism and a punching and shearing mechanism. The preheating mechanism, the forming mechanism, the punching mechanism and the punching and shearing mechanism are sequentially distributed in the plate conveying direction. The cup cover forming and ultrasonic heat sealing all-in-one machine is characterized by further comprising an ultrasonic heat sealing mechanism, a filter screen placing mechanism and a filter screen transferring mechanism. Compared with the prior art, the ultrasonic heat sealing integrated machine has the beneficial effects that the filter screen transferring mechanism, the ultrasonic heat sealing mechanism and the filter screen placing mechanism are additionally arranged and are matched with one another, so that positioning placing, transferring and heat sealing of a filter screen can be completed, and the ultrasonic heat sealing integrated machine for forming the cup cover can complete forming of the cup cover and mounting of the filter screen at a time; therefore, the occupied space and the needed manpower are greatly reduced, the automation degree is greatly improved, and the sanitary condition of the cup cover is effectively guaranteed.

The invention relates to the technical field of industrial automation control, and discloses a complete switch equipment-oriented copper bar flexible processing production cooperative control method, which comprises the following steps of: analyzing a three-dimensional design model, and establishing a discretization infinitesimal model along the longitudinal direction of a copper bar; collecting punching shear servo data to calculate a global material hardening index, and reconstructing a discrete residual stress field; performing task clustering based on the rehearsal trajectory, and calculating a cumulative inertial load factor in circulation; the optimal mechanical clamping point deviating from the geometric center is calculated according to the discrete residual stress field, and dynamic grabbing is executed; and in combination with the hardening index and the inertia load factor, calculating a bending pressing stroke containing double gain correction and executing machining. According to the method, by means of discrete stress field reconstruction and inertial load calculation, dynamic drift correction and multi-dimensional bending self-adaptive compensation of the grabbing point are achieved, and the machining precision can be improved without trial bending.

The invention discloses a non-drilling-through type shearing resisting method and structure for fixing a profiled steel sheet of a steel-concrete structure, and the method comprises the following steps: a locking hole which does not penetrate through a steel base material is machined in the profiled steel sheet and the steel base material, and the locking hole is provided with an insertion section, an expanded base section and an extension section which are connected in sequence; a shear-resistant expanded-base anchor bolt is inserted into the locking hole to the bottom; and the locking nut is rotated to realize that the profiled steel sheet and the steel base material are pressed and fixed while the expanded-base petals are opened. According to the invention, a stress mode is converted into mechanical interlocking of'the locking hole and the anti-shearing expanded-base anchor bolt 'from friction holding of a shoot nail, a force value is increased by one order of magnitude, a damage mode is designed as that the expanded-base petals, the anti-shearing expanded-base anchor bolt and a steel base material almost reach the limit at the same time, and the material strength utilization rate and the safety are extremely high. The non-drilling-through type shearing resisting method can be matched with automatic equipment to achieve automatic machining.

The present application relates to bus duct processing technical field, disclose a kind of bus duct connecting row automatic punching shearing processing machine, including machine body, the machine body front and rear sides are connected and are provided with pressing assembly, the machine body front end is connected and is provided with shearing assembly, the machine body top end is connected and is provided with connecting plate one, the connecting plate one top end is connected and is provided with electric guide rail one, the electric guide rail one mobile end is connected and is provided with mobile kit, the mobile kit is slidably arranged in connecting plate one top end, and the mobile kit bottom end is connected with connecting plate one. The present application is controlled by the cooperation of transport assembly, electric guide rail, multistage hydraulic system and external controller, realizes the automatic feeding of connecting row, fixed-length shearing, accurate punching and automatic polishing, greatly reduces manual intervention, improves production efficiency, adopts multistage hydraulic assembly to drive multiple concentric punching head, can be activated different levels punch according to the required aperture, without frequent replacement of mould.

1. Name of the product in this design: Copper busbar punching and shearing machine. 2. Application of this design: For punching and shearing of copper and aluminum busbars, including processes such as punching, shearing, chamfering, and embossing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

The utility model discloses a full -automatic steel office furniture plate punching -shearing machine, including punch -shearing machine main part, bottom plate and support leg, the bottom fixedly connected with bottom plate of punch -shearing machine main part, the right side fixedly connected with two support legs at bottom plate top, the utility model discloses the cooperation of setting punch -shearing machine main part, bottom plate, support leg, control panel, connecting plate, through groove, moving plate, connecting groove, brush plate, half gear, rack, top plate, motor, stabilizer, spring, sliding slot, baffle, accommodating block, accommodating groove, pressure spring, fixed link, fixed hole, pull rod and sleeve rod has solved the existing equipment often does not have automatic cleaning mechanism, leading to the surface of plate material easy to remain dust, oil stain and metal scrapes and so on impurity, these pollutants not only will reduce processing quality, cause scratch or indentation and so on defects, also can accelerate the wear and tear of mould, increase maintenance cost's problem.

The utility model relates to the technical fields of bus punching and shearing machine, propose a kind of full servo numerical control bus punching and shearing machine, including conveying platform and feeding mechanism, and feeding mechanism includes support plate, two groups of feeding members are arranged on support plate, and feeding member includes support table, and support table is slidably connected with sliding block, and first motor is fixed on sliding block, and feeding wheel is coaxially fixed on the output shaft of first motor, contact block is also fixed on support table, contact block is fixed with touch switch, and adjusting spring is connected between contact block and sliding block.The utility model has the beneficial effects that: driving piece drives a pair of feeding member and bus copper bar two sides and abuts, at this time, feeding wheel is provided with force by the elastic force of adjusting spring to bus copper bar, to adjust the compression amount of adjusting spring with adjusting piece, ensure that bus copper bar is not deformed by excessive pressure in conveying process, and enough friction can also be guaranteed to realize stable conveying.

The utility model discloses a kind of multi-process engineering moulds, including upper die holder and lower die holder, located on the upper die holder is provided with stripping plate, located on the lower die holder is provided with concave die plate, stripping plate corresponds with concave die plate, at least two groups of parallel punching shear cavities are opened on the concave die plate, the upper die holder at punching shear cavity corresponding place is provided with punching shear block, and the end of steel bar is trimmed and formed by punching shear block and punching shear cavity cooperation, the punching shear cavity is provided with the steel bar placement cavity extending outward, punching is provided at the end of steel bar placement cavity.The utility model is changed by using positioning plate, and different quick-release positioning blocks are made on the positioning plate according to product size to complete the stamping of different size products, two-end head stamping is used in stamping process, and mold cost is saved.

The utility model discloses a hydraulic punching and shearing machine self-adaptive to material thickness, and relates to the technical field of hydraulic punching and shearing machines. According to the hydraulic punching and shearing machine self-adaptive to the material thickness, through mutual cooperation of the positioning plate and the movable plate, shaking and deviation during punching are effectively eliminated, it is ensured that punching is accurate, the machining precision is remarkably improved, the punching and shearing head is designed to be detachable, maintenance and replacement are more convenient, the downtime is greatly shortened, and the machining precision is continuously and stably guaranteed. The punching cylinder quickly drives the punching and shearing action, and the self-adaptive adjusting mechanism can clamp materials by virtue of the cooperative operation of the clamp and the clamp cylinder, and meanwhile, a movable clamping plate can adjust the height of the punch seat in a linkage manner, and the punching and shearing stroke is optimized according to the thickness of the materials, so that the punching and shearing machine can flexibly cope with the materials with different thicknesses and can automatically reduce the height of the punch seat for thin materials; the punching force is precisely controlled, and the size precision and the surface quality are guaranteed; for thick materials, the height of the punch seat is reasonably set, so that the punch accumulates enough energy and travel.

A method for predicting the failure mode of a slab-column joint. The purpose of this invention is to provide a method for predicting the failure mode of a slab-column joint. This method considers comprehensive factors and is simple to apply. Only the relevant parameters of the slab-column joint need to be input to predict the failure mode, thus overcoming the shortcomings of existing methods. Method: Construct a test database for slab-column joints and determine the strain ε of the tensile longitudinal reinforcement in the slab. s Yield strain ε of longitudinal tensile reinforcement in plate y The ratio is used as a quantitative index to distinguish the failure mode of the plate-column joint; a calculation model for the discriminant characteristic parameter φ of the plate-column joint failure mode is established; and a discrimination criterion for the plate-column joint failure mode is established. Only the relevant parameters of the plate-column joint need to be input, without needing known experimental values ​​of the plate-column joint bearing capacity, to predict the failure mode of the plate-column joint, thus overcoming the shortcomings of existing prediction methods. Furthermore, compared with existing plate-column joint mode prediction methods, the method of this invention can more accurately predict the failure modes of the plate-column joint, including punching shear failure, flexural punching failure, and bending failure.

The application provides a one-die multi-piece punch-shear machine, which comprises a hydraulic driving mechanism, a punch-shear assembly and a material distribution assembly. The hydraulic driving mechanism comprises a hydraulic cylinder and a rack. The punch-shear assembly comprises an upper die assembly and a lower die assembly. The upper die assembly comprises an upper die plate and a plurality of female dies. The upper die plate is connected with the end of a piston rod, and the plurality of female dies are installed on the upper die plate. The lower die assembly comprises a lower die plate and a plurality of male dies. The lower die plate is installed on the rack, and the plurality of male dies are installed on the lower die plate. The plurality of male dies are arranged in one-to-one correspondence with the plurality of female dies. The center of each male die is provided with a discharging hole, and the lower die plate is provided with a plurality of discharging ports which are communicated with the discharging holes. The material distribution assembly comprises a distribution box which is located below the rack. The distribution box is divided into a plurality of material bins. Each material bin is communicated with a corresponding discharging port.

The utility model relates to the technical field of building reinforcing structures, in particular to a reinforcing structure of a slab-column node in a flat slab, which comprises a floor slab, a column cap fixedly connected to the bottom of the floor slab, a column body fixedly connected to the bottom of the column cap, an angle steel frame sleeved on the surface of the column cap, a force transmission steel plate arranged at the bottom of the angle steel frame, and a steel plate arranged on the surface of the force transmission steel plate. Force transmission angle steel is arranged at the bottom of the force transmission steel plate, angle steel supporting rods are arranged at the four corners of the column body, hoop plates are fixedly connected to the surfaces of the angle steel supporting rods, and structural adhesive is arranged between the angle steel frame and a floor slab. The structure is not only suitable for common structure reinforcing engineering, but also capable of meeting the requirement of civil air defense engineering for time urgency in peacetime and wartime function conversion, the structure does not need to be unloaded in advance when reinforcing is carried out, construction is simplified, construction efficiency is improved, punching bearing capacity at the position of the column cap can be improved, and construction cost is reduced. And the overall bearing capacity of the structure is also remarkably improved.

The utility model discloses a swivel pier anti-shearing device, which belongs to the technical field of bridge swivel systems, and comprises two parallel I-beams, the back surfaces of the upper parts of the two I-beams are connected through a first pinch plate, and the front surfaces and the back surfaces of the lower parts of the two I-beams are respectively connected through a second pinch plate and a third pinch plate. The top ends and the bottom ends of the two pieces of I-shaped steel are connected through an upper steel plate and a lower steel plate respectively, the front faces of the upper portions of the two pieces of I-shaped steel are connected with an embedded steel plate, the front face of the embedded steel plate is connected with a plurality of layers of two oppositely-arranged thick rib plates, and the front faces of the two thick rib plates are connected with end plates. The thick rib plate and the end plate are embedded in the upper bearing platform concrete, and the fixing steel plate and the lower portion of the bolt are embedded in the lower bearing platform concrete. According to the utility model, the punching shearing force of the supporting legs to the bearing platform structure caused by unbalanced construction of a bridge at the upper part of the swivel pier or severe windy weather in the construction period can be reduced, and the overall stability of the bridge is ensured.

The utility model relates to the technical field of furniture manufacturing, and discloses a feeding device of a sheet punching and shearing machine, which comprises a fixed plate, a feeding conveyor belt is fixedly assembled on the inner wall of the fixed plate, a mechanical arm is fixedly assembled on the top of the fixed plate, a storage box is connected to the inner wall of the fixed plate in a sliding manner, and the storage box is connected with the mechanical arm in a sliding manner. A transverse plate is slidably connected to the inner wall of the fixing plate, and a pulling plate and a connecting rope are fixedly mounted on the two sides of the outer wall of the transverse plate correspondingly. By pulling a pulling plate, the pulling plate drives a transverse plate to move, the transverse plate drives one end of a connecting rope to move, then the other end of the connecting rope drives a pressing plate to move downwards, at the moment, the pressing plate drives a lock pin to move downwards, then the lock pin is separated from the inner wall of a lock groove, and at the moment, the fixing relation of the lock groove disappears; and at the moment, the material storage box can be taken out, and the material storage box filled with the materials is placed in the fixing plate.

The invention discloses an earthwork standard room strip and locking piece combined structure and a using method.The earthwork standard room strip and locking piece combined structure comprises a locking piece and a strip, and the locking piece is composed of a first pressing block and a second pressing block; s-shaped strip-shaped pressing ribs are continuously arranged on the two pressing blocks in a staggered mode, each S-shaped strip-shaped pressing rib is formed by combining a concave part formed by a large first arc and a convex part formed by a small second arc in a tangent transition and smooth connection mode, the shapes of the large arcs and the small arcs on the two pressing blocks are matched so as to be matched with a pressing strip, and the first pressing blocks and the second pressing blocks are buckled on the inner sides of the second arcs to form channels. A channel is formed in the locking piece, a through hole connected with the channel is formed in the reinforcing locking plate, a nail anchor is inserted into the through hole to fix the locking piece on the ground, and therefore the use method of node assembly and assembly connection is formed. The pressing structure formed by the double arcs is in a continuous and natural S-shaped transition arc shape, no sharp position exists in the pressing process, stress concentration is not generated, and the strip is not prone to being damaged and fractured.

The utility model discloses a multi-angle adjustable punching and shearing machine workpiece positioning structure, and belongs to the technical field of punching and shearing machine devices. The positioning device comprises the positioning table, the positioning assembly and the positioning clamp, the rotating base is connected with the rail sliding base through the rotating bearing and can rotate freely, the machining angle can be adjusted without disassembling a workpiece, and the machining requirements of the punching and shearing machine for the workpiece in different directions are met; the rotating base can slide along the moving rail, the moving base quickly moves on the surface of the positioning table through the bottom face rolling wheels, the transverse distance between the two positioning assemblies is accurately adjusted in cooperation with threaded transmission of the threaded rod, and the positioning requirements of workpieces of different sizes are met; the multi-angle punching and shearing machining of a workpiece can be completed on the same equipment, in the clamping state, the movable base or the rotary base can be directly pushed, the workpiece is driven to rotate or translate, the positioning clamp can rapidly replace different types of clamps according to the shape of the workpiece, and the equipment remodeling time is shortened.

The invention discloses a plate-cylinder composite anchor plate and an anchor rod, the plate-cylinder composite anchor plate comprises an anchor backing plate and a cylindrical member vertically connected to the anchor backing plate, and the plate-cylinder composite anchor plate is used for being embedded and fixed in a concrete structure outside an anchor hole opening; the anchor bearing plate is provided with a rod body hole within the range surrounded by the barrel wall of the barrel-shaped component, and the rod body hole is used for locking an anchor rod body on the anchor bearing plate after the anchor rod body penetrates through the rod body hole. The anchor rod comprises an anchor rod body, an anchorage device and a plate-cylinder composite anchor plate, the anchor rod body is locked on the anchor bearing plate through the anchorage device, and the plate-cylinder composite anchor plate is fixedly embedded in a concrete structure. According to the plate-cylinder composite anchor plate and the anchor rod, surface water can be prevented from seeping into the anchor rod body to corrode the anchor rod body, the anti-punching bearing capacity of a concrete structure can be improved, and the technical and economic effects are good.

The utility model discloses a flat steel punching and shearing machine for producing a pipe bracket, which relates to the field of flat steel punching and shearing and comprises a punching and shearing mechanism, a bending mechanism arranged on the front side of the punching and shearing mechanism, a material receiving mechanism arranged on one side of the bending mechanism and used for collecting the pipe bracket, and the punching and shearing mechanism comprises a main body support. The material receiving mechanism comprises an overturning support, a telescopic air cylinder is fixed to one side of the overturning support, a fixed support is fixed to the output end of the telescopic air cylinder, a material receiving frame is slidably connected to the fixed support, two cylinders are fixed to the other side of the material receiving frame, and a reset spring is fixed between the fixed support and the material receiving frame. A material collecting table assembly is arranged on one side of the bending mechanism. The pipe bracket turnover device has the beneficial effects that after bending, punching and shearing are completed, the pipe brackets are driven to turn over by 90 degrees and then are stacked on the sliding platform in order through limiting of the cylinders of the material collecting frame and the pipe brackets, in this way, more pipe brackets can be contained in the limited space, and the conveying efficiency is improved.

The application relates to a part punching method and a punching die, which comprises the following steps: designing a punching die according to the size of a part to be punched, placing a blank, compacting the blank, punching the blank by a punching punch, ejecting the part, and taking out the part. The technical scheme has the advantages that the compressive stress is established on the blank before punching, so that the tensile stress formed by the punching shear surface due to the blanking is totally or partially offset, the part and the part hole are prevented from being deformed due to the residual tensile stress of the hole shear surface, the size precision of the part after punching is high, the use requirement is met, and the processing efficiency is high.