The band iron perforating mold
Technical field
The utility model relates to a kind of mould of punching, especially a kind ofly is used in the electric engineering construction the on-the-spot band iron perforating mold that band iron is punched that uses.
Background technology
Electric power is to develop production and improve human living standard's important substance basis, and being applied in of electric power deepens constantly and develop, and electric automatization is the modern important symbol of national economy and people's lives.Electric engineering construction is a basis that guarantees electric automatization, and the quick and colleges and universities of electric engineering construction are the prerequisites of setting up electric automatization.
When electrical equipment was installed, personnel's personal safety on every side avoided taking place human electric shock's accident when considering the equipment operation, and in order to guarantee that electrical equipment normally and under the accident conditions working safely and reliably, need carry out reliable ground with electrical equipment.According to " erection works of electrical installations code for construction and asseptance of earthed devices (GB 50169-2006) ", in electric engineering construction, use band iron as earthing material.In practice of construction, use zinc-plated band iron to accomplish the making of grounded screen with good antiseptic and rustproof function.
Zinc-plated band iron need be connected to a fixed with electrical equipment when using, and therefore need on zinc-plated band iron, punch forms connecting hole, can electrical equipment be fixed with bolt through connecting hole.On band iron, punch and need the position of connecting hole be positioned, existing processing is to carry out in job shop, processes through drilling machine.But the installation site of electrical equipment is not the plane of standard, and the position of the connecting hole on the band iron neither be changeless.In the existing electric engineering construction, be at the scene the position that needs on the band iron to punch to be surveyed and drawn, after the mapping, take data to job shop, process, again band iron is transported to the scene after the processing and installs according to data.If mistake appears in data; Perhaps the structure of mapping is undesirable, and the position of the connecting hole of the band iron that processes can not normal mounting, then need do over again; Also need band iron be transported to job shop processes; Wasted the time, the man power and material, efficiency of construction is lower, the progress of engineering is also slow.Also have is exactly to process with the mode of cutting at the construction field (site); Such as employing flame gas cutting, but the dimensional accuracy of the connecting hole that this mode processes is not high, and can increase the weight of carrying; And carry out the flame gas cutting at the power construction scene and also will consider safety problem; The flame gas cutting can not be arbitrarily carried out in the restriction that receives environment or scene sometimes, and specialty processing also need be equipped with special gas cutting workman, implements cumbersome.
Summary of the invention
The utility model has solved in the prior art band iron punching to be needed turn round with the workshop at the scene, causes the band iron working (machining) efficiency lower, influences construction speed easily; Also can increase the defective of construction cost; A kind of band iron perforating mold is provided, can directly punches to band iron at the construction field (site), saved the time on the road; Accelerate construction speed, also can reduce the cost of construction.
The utility model has also solved available technology adopting flame gas cutting and at the scene band iron has been punched, and receives the influence of environment and job site easily, and drilling precision is low; The defective that safety coefficient is low; A kind of band iron perforating mold is provided, can directly punches to band iron at the construction field (site), drilling precision is high; And security is also higher, does not receive the restriction of surrounding environment.
The utility model solves the technical scheme that its technical problem adopted: a kind of band iron perforating mold; Comprise two drift mould and perforating dies that are connected with hydraulic tongs; The drift mould comprises die holder and is fixed on the drift on the die holder; Perforating die comprises die holder and is fixed on the red seat on the die holder that red seat is provided with the punching that matches with drift.The drift mould cooperates with perforating die and punches, and the drift mould is connected with hydraulic tongs through die holder, and perforating die links to each other with hydraulic tongs through die holder; After mould was connected on the hydraulic tongs through die holder, band iron was placed between two die holders, adjusted the center of the position of connecting hole with the centrally aligned connecting hole of drift; Power along with hydraulic tongs; Two die holders gradually near, the drift on the die holder matches with red seat, drift is gone out a connecting hole on band iron; Mould can use by the fluid,matching pressing tongs, and the hydraulic tongs volume is little, can take the scene to, and the workmen directly processes band iron after data are recorded, and the workshop of need not changing trains or buses processes, and has saved process time, has accelerated construction speed, has improved efficiency of construction; If the position of connecting hole is improper, can also directly just repair band iron, provide cost savings; Hydraulic tongs cooperates with mould and carries also more conveniently, and this processing mode need not be got angry, and security is higher.
As preferably, the external diameter of punching is greater than the external diameter of drift, and punching and drift are matched in clearance.The aperture of connecting hole is corresponding with the external diameter of drift, band iron by the drift punching after, the waste material that sweeps away enters in the punching, the external diameter of punching does not influence punching greater than the external diameter of drift, can conveniently waste material be withdrawed from punching again simultaneously.
As preferably, the end of drift is provided with the conical head of protrusion, and the diameter at the bottom of the awl of conical head is equal to or less than the diameter of drift.Conical head is convenient to the drift location, guarantees that the position of connecting hole meets the requirements, and prevents that simultaneously drift from skidding, and band iron also is convenient to break in the tip of conical head, processes more laborsaving.
As preferably, be equipped with spring on the drift, the length of spring is less than the length of drift.After drift is gone out connecting hole, can produce extruding between the edge of drift and connecting hole, this can hinder drift and withdraw from from connecting hole; Be nested with spring on the drift, in the time of drift processing, spring is extruded; Produce restoring force; When drift withdrawed from the punching, the restoring force of spring withdrawed from drift in connecting hole, operated more conveniently can realize the fast automatic mould that moves back.
As preferably, the hardness of drift is greater than the hardness of red seat, and the degree of depth of punching is greater than the length of drift.The hardness of drift is maximum, generally adopts 20# chromium steel as requested, and the hardness of red seat is slightly little, and when preventing that mismatch error from appearring in drift and red seat, red seat causes damage to drift; The degree of depth of punching is big, can hold the length of whole drift fully, prevents that the bottom of drift and punching from bumping.
As preferably, the position that die holder links to each other with hydraulic tongs is an arc, and the two ends of arc are provided with the location concave edge; Die holder is provided with locating slot or the locating hole that matches with the hydraulic tongs alignment pin.Arc mainly is to decide according to the assembling shape of hydraulic tongs, if the shape of hydraulic tongs is other shapes, also can be arranged to the shape that other match; Location concave edge and alignment pin position mould, and the location concave edge defines the axis rotation of mould around arc, and alignment pin defines mould and moves along the axis direction of arc.
As preferably, locating slot is arranged on rectangular sunk structure on the die holder arcwall face, and the arcuate directions of locating slot is perpendicular with the location concave edge.
The beneficial effect of the utility model is: the die holder of mould is connected with hydraulic tongs, under the pressure effect of hydraulic tongs, two die holders can be each other near, drift and punching on the die holder match, when band iron was between two die holders, drift was gone out connecting hole on band iron; Die holder is connected with hydraulic tongs; Only need carry hydraulic tongs with mould just can be processed band iron at the scene, data are directly gathered afterwards and just can be processed, and have saved the rotating time on the road; Improved working (machining) efficiency; And field machining, can satisfy actual needs more, drift can guarantee machining accuracy with cooperating also of punching.
Description of drawings
Fig. 1 is a kind of fit structure sketch map of the utility model;
Fig. 2 is a kind of die holder structural representation with drift of the utility model;
Fig. 3 is the side view of the utility model structure shown in Figure 2;
Fig. 4 is the cutaway view of a kind of die holder with punching of the utility model;
Fig. 5 is the side view of the utility model structure shown in Figure 4;
Among the figure: 1, drift mould, 2, punch holder, 3, the location concave edge, 4, spring, 5, drift, 6, conical head, 7, punching, 8, bulge loop, 9, red seat, 10, perforating die, 11, die holder, 12, locating slot.
The specific embodiment
Pass through specific embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.
Embodiment: a kind of band iron perforating mold (referring to accompanying drawing 1), comprise two drift moulds that are connected with hydraulic tongs 1 and perforating die 10, fixing drift 5 on the drift mould, perforating die is provided with punching 7, and drift matches with punching.
The drift mould comprises the die holder 11 (referring to accompanying drawing 1 accompanying drawing 2 accompanying drawings 3) of the arc that is connected with hydraulic tongs, and the arc inner surface of arc is fixed with punch holder 2, and drift is the cylindric middle part that is fixed on punch holder.Drift adopts 20# chromium steel, and the end of drift is extended with conical head 6, and the diameter at the bottom of the awl of conical head is less than the external diameter of drift.Be equipped with spring 4 on the drift, the length of spring is less than the length of drift.The two ends of die holder arc are provided with the location concave edge 3 of right-angle recess, and the axis of location concave edge and arc parallels.The location concave edge matches with hydraulic tongs and prevents that the drift mould from rotating around the axis of arc.The arc-shaped outer surface place of die holder is provided with the rectangular locating slot 12 of one depression, and locating slot extends to the location concave edge of the other end from the location concave edge of die holder one end, and locating slot is perpendicular with the location concave edge.
Perforating die comprises the die holder 11 (referring to accompanying drawing 1 accompanying drawing 4 accompanying drawings 5) of the arc that is connected with hydraulic tongs; The arc inner surface of arc is fixed with red seat 9; The middle part of red seat is provided with the bulge loop 8 of outstanding red seat, and punching 7 is arranged at the middle part of bulge loop and is deep into red seat inside.Bulge loop adopts mould steel to make, and the internal diameter of punching forms matched in clearance greater than the external diameter of drift between punching and the drift, and the degree of depth of punching is greater than the degree of depth of drift.The two ends of die holder arc are provided with the location concave edge 3 of right-angle recess, and the axis of location concave edge and arc parallels.The location concave edge matches with hydraulic tongs and prevents that the drift mould from rotating around the axis of arc.The arc-shaped outer surface place of die holder is provided with the rectangular locating slot 12 of one depression, and locating slot extends to the location concave edge of the other end from the location concave edge of die holder one end, and locating slot is perpendicular with the location concave edge.
The drift mould is connected with hydraulic tongs respectively with perforating die, and the location concave edge positions, and locating slot cooperates with the alignment pin of hydraulic tongs to be fixed.Band iron to be punched is placed between drift mould and the perforating die, and the center of connecting hole to be processed on the band iron is aimed at the tip of the conical head of nose of punch, then hydraulic tongs action, drift and perforating die each other near; Drift pushes band iron gradually, the outside spring of the drift of band iron compression simultaneously, and the end edge of drift and the edge of punching form to be sheared; The processed completion of band iron, connecting hole satisfies machining accuracy, and the blanking of connecting hole extend in the punching; Then loosen hydraulic tongs, drift and perforating die are separated, under the active force of spring; Drift withdraws from the connecting hole of band iron automatically, the overturning hydraulic tongs, and blanking drops in punching; Process is more laborsaving, directly just can operate at the scene, has accelerated construction speed.
Above-described embodiment is a kind of preferred version of the utility model, is not the utility model is done any pro forma restriction, under the prerequisite that does not exceed the technical scheme that claim puts down in writing, also has other variant and remodeling.