CN212760681U - Electrical equipment earth connection preparation instrument - Google Patents

Abstract

The utility model discloses an electrical equipment earth connection manufacturing tool, including binding clip, band steel shearing mould, band steel cut-out press and band steel mould of bending. The binding clip can be connected with telescopic hydraulic equipment or electrical equipment, the band steel shearing mould is installed respectively to the binding clip, band steel cut-out press and band steel mould of bending, cut through the band steel of shearing mould combined dimension, then the preparation is rule the template and is rule according to the standard drawing requirement to the band steel, punch a hole to the band steel of drawing the line through the band steel cut-out press, bend through the band steel mould of bending and carry out bending of corresponding angle, the band steel of making like this can guarantee the accurate position and the size of each hole site, can guarantee the accuracy nature of each angle of bending degree and position again, thereby can guarantee the laminating of band steel and pole, with the laminating of step face, can guarantee the convenient butt joint fastening of two angle steels again. The bending die can bend at three angles through the arrangement of the thick pin pad and the thin pin pad. The whole set of tool is small in size and convenient to carry.

Description

Electrical equipment earth connection preparation instrument

Technical Field

The utility model belongs to electrical equipment earth connection preparation field specifically is an electrical equipment earth connection preparation instrument.

Background

The electrical equipment on the electric pole and the step must be grounded, the national power grid company stipulates the manufacturing standard of fixing the down leads of the grounding wires on the electric pole and the step, and the flat steel of 40 multiplied by 4 is required to be bent, punched and assembled according to the sizes in the figures 1 and 2. At present, no special tool is available for manufacturing the ground wire on site, and the ground wire is manufactured by using a common tool, so that the ground wire is labor-consuming, time-consuming and difficult to reach the standard.

The process requirement for manufacturing the ground wire on site is as follows:

firstly, the gap at the connection part of the flat steel cannot be too large, and meanwhile, after the flat steel is installed, the flat steel is closely attached to an electric pole, and the plane of the connecting plate is parallel to the electric pole;

connecting holes of the two plates are aligned up and down, errors are too large, and screws cannot penetrate through the connecting holes;

thirdly, the flat steel runs along the steps and needs to be tightly attached to the ground, the ninety-degree bend point needs to be in place, and the gap cannot be too large.

The manufacturing is carried out by using a common tool, which is a plurality of difficulties in manufacturing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can guarantee the accurate position of each hole site on the band steel and respectively bend the angle accuracy nature to guarantee that the pole can be hugged closely to the band steel on the pole, the step face can be hugged closely to the band steel on the step, can guarantee the manufacturing tool of the butt joint end bolt easy to assemble of two band steels again.

The utility model provides an electrical equipment earth connection producing tool, including binding clip and supporting band steel shear die, band steel cut-out press and the band steel mould of bending.

In an embodiment of the above technical scheme, the binding clip comprises a connector and a pair of clamping arms at the upper end of the connector, the upper parts of the two clamping arms are vertically connected with a binding clip bolt, the connector is provided with an internal thread hole along the axial center of the connector, a piston is arranged in the internal thread hole, and the piston can be pushed by external force.

In one embodiment of the above technical solution, the sidewall of the connector is connected with a radial set screw; one end of the binding clip bolt is provided with a limiting head, and the other end of the binding clip bolt penetrates through the mounting hole on the clamping arm and is embedded with a limiting bead.

In one embodiment of the above technical scheme, the flat steel shearing die comprises an upper shearing die and a lower shearing die, wherein a concave-convex matched knife edge is formed at the lower end of the upper shearing die and the upper end of the lower shearing die, a groove is formed in the upper side of the upper shearing die, the lower shearing die and the upper shearing die are arranged between two clamping arms of the binding clip in a mode that the knife edges are oppositely arranged, and a bolt rod of a binding clip bolt is inserted into the groove to limit the upper shearing die.

In one embodiment of the above technical solution, the flat steel punching die includes an upper punching die, a lower punching die, and a punching pin; a punching needle mounting hole is formed in the center of the bottom surface of the punching upper die, the punching needle is downwards mounted in the hole through a needle rod, a mounting hole of the tong head bolt is formed in the top of the punching upper die, and the mounting hole is perpendicular to the punching needle; the center of the lower punching die is provided with a stepped hole, the diameter of the upper section of the stepped hole is matched with the outer diameter of the punching needle, the diameter of the lower section of the stepped hole is larger than that of the upper section of the stepped hole, a flat steel slot is vertically arranged on the lower punching die corresponding to the upper section of the stepped hole, and the center of the flat steel slot is positioned on the axial center line of the stepped hole.

In an embodiment of the above technical solution, the diameter of the lower section of the stepped hole is smaller than the diameter of the piston, the lower punching die is disposed at the bottom between the two clamping arms of the binding clip, the upper punching die is sleeved on the pin of the binding clip bolt through the mounting hole at the top of the upper punching die, and the lower end of the punching pin is inserted into the upper section of the stepped hole.

In one embodiment of the above technical solution, the punching needle has two specifications, the diameters of the punching needle are respectively 11.5mm and 13.5mm, the lower punching die has two specifications, and the diameters of the upper section holes of the stepped holes are respectively matched with the punching needles of the two specifications.

In an embodiment of the above technical scheme, the flat steel bending die comprises a bending lower die and a bending upper die, the bending lower die comprises a U-shaped support and two fixed pulleys, a pin pad is detachably connected to the central position of the bottom of the U-shaped support, two upper and lower pulley mounting holes are respectively formed in two side arms of the U-shaped support, the two fixed pulleys are arranged in the pulley mounting holes in the opposite positions on the two side arms, and the bending upper die is a pulley which can be mounted on the binding clip bolt.

In one embodiment of the above technical solution, the pin pad includes a pin and a flat base plate at the lower end thereof, a limiting bead is provided on the top side wall of the pin, and a vertical hole for mounting the pin and the limiting bead is provided at the bottom center of the U-shaped bracket; the pin pads have two specifications, the pin columns of the pin pads are the same, and the thicknesses of the flat pads are different.

The utility model discloses a binding clip can be connected with telescopic hydraulic equipment or electrical equipment, and the binding clip can install flat steel shearing die respectively, flat steel cut-out press and flat steel mould of bending, the flat steel through shearing die combined dimension cuts, then the preparation is rule the template and is rule according to the standard drawing requirement to the flat steel, punch a hole to the flat steel of drawing the line through the flat steel cut-out press, bend that the mould carries out corresponding angle through the flat steel, the flat steel of preparation like this can guarantee the accurate position and the size of each hole site, can guarantee the accuracy nature of each angle degree of bending and position again, thereby can guarantee the laminating of flat steel and pole, with the laminating of step face, can guarantee the convenient butt joint fastening of two angle steels again. In addition, the bending die can perform bending at three angles through the arrangement of the thick pin pads and the thin pin pads. The whole set of tool is small in size and convenient to carry.

Drawings

Fig. 1 is a standard drawing for manufacturing a fixing section on an electric pole of a flat steel for fixing a down lead of a grounding wire on the electric pole and a step.

FIG. 2 is a standard drawing for manufacturing a fixing section of the flat steel on the step.

Fig. 3 is a schematic structural diagram of a binding clip according to an embodiment of the present invention.

Fig. 4 is a left side view of fig. 3 (without the binding clip bolt shown).

Fig. 5 is a schematic structural diagram of the shearing die of the present embodiment.

Fig. 6 is a left side view of fig. 5.

Fig. 7 is a structural view of the scribing template.

Fig. 8 is a left side view of fig. 7.

Fig. 9 is a schematic diagram of the butt ends of the flat steel on the electric pole and the flat steel on the step after scribing.

Fig. 10 is a schematic diagram of the upper end hole site section of the flat steel on the electric pole after being scribed.

Fig. 11 is a schematic structural view of the punching die of the present embodiment.

Fig. 12 is a left side view of fig. 11.

FIG. 13 is a view showing the positioning of the lower punch die on the butt end of two flat steels.

Fig. 14 is a positioning diagram of the punching lower die on the hole position section of the upper end of the flat steel on the electric pole.

Fig. 15 is a schematic structural view of the bending mold of this embodiment.

FIG. 16 is a first process diagram of bending the flat bar over the step by 90 degrees.

FIG. 17 is a second process diagram of bending the flat steel on the step by 90 degrees.

FIG. 18 is a first process diagram of bending the flat steel on the step by 140 degrees.

FIG. 19 is a second process diagram of bending the flat steel on the step by 140 degrees.

FIG. 20 is a third process diagram of bending the flat steel on the step by 140 degrees.

FIG. 21 is a fourth process diagram of bending the flat steel on the step by 140 degrees.

Fig. 22 is a second process diagram of bending the pole by 135 degrees.

Fig. 23 is a fourth process diagram when bending the flat steel on the electric pole by 135 degrees.

(in FIGS. 15 to 23, the piston is shown in the head of the pliers)

Detailed Description

The manufacturing tool for the grounding wire of the electrical equipment is used for manufacturing the down lead fixing flat steel and comprises a binding clip and a flat steel shearing die, a flat steel punching die and a flat steel bending die which are matched with the binding clip.

As shown in figures 3 and 4, the binding clip A of the tool comprises a connector A1 and a pair of clamping arms A2 at the upper end of the connector, and the upper parts of the two clamping arms are vertically connected with a binding clip bolt A3. The connector A1 has an internal threaded hole along its axial center, and a piston A4 is disposed in the internal threaded hole and can be pushed by external force. The side wall of the connection head a1 is connected with a radial set screw a 5. One end of the binding clip bolt A3 has a limiting head, the other end passes through the mounting hole on the clamping arm and is embedded with a limiting bead A6, and the limiting bead is arranged to prevent the binding clip bolt from jumping out of the mounting hole on the binding clip clamping arm in the use process.

As shown in fig. 5 and 6, the flat steel shearing die B of the tool comprises an upper shearing die B1 and a lower shearing die B2, wherein the lower end of the upper shearing die B1 and the upper end of the lower shearing die B2 are provided with concave-convex matched knife edges, and the upper side of the upper shearing die is provided with a groove B11.

When the flat steel shearing die is applied, the shearing lower die B1 and the shearing upper die B2 are oppositely arranged between two clamping arms A2 of a binding clip A by knife edges, and a bolt rod of a binding clip A3 is inserted into a groove B11 to limit the shearing upper die B1.

The flat steel is provided with a plurality of connecting holes which need to be processed through a flat steel punching die, a plurality of bending angles need to be processed through a flat steel bending die, and the central positions and the bending line positions of all the holes need to be drawn on the flat steel before punching and bending, so that the marking template E shown in figures 7 and 8 needs to be manufactured according to the size of a standard drawing.

As can be seen from fig. 1:

the butt joint end of the two flat steels is provided with a group of round holes with the diameter of 13.5, the upper parts of the flat steels on the steps are provided with a pair of bending angles of 140 degrees, and the lower parts of the flat steels are provided with a plurality of bending angles of 90 degrees.

The upper part of the flat steel on the electric pole is provided with a group of four round holes with the diameter of 11.5, and the upper part and the lower part are respectively provided with a pair of bending angles of 135 degrees.

The butt joint end is scribed once through the scribing template E, after scribing, as shown in figure 9, the flat steel on the electric pole is scribed twice through the scribing template, and after scribing, as shown in figure 10.

As shown in fig. 11 and 12, the flat steel punching die C of the present tool includes an upper punching die C1, a lower punching die C2, and a punching pin C3.

The center of the bottom surface of the upper punching die C1 is provided with a punching pin mounting hole C11, a punching pin C3 is arranged in the hole with the needle rod facing downwards, and the top of the upper punching die is provided with a mounting hole of a tong head bolt A3, and the mounting hole is arranged perpendicular to the punching pin C3.

A step hole C21 is formed in the center of the lower punching die C2, the diameter of the upper section of the step hole is matched with the outer diameter of the punching needle C3, the diameter of the lower section of the step hole is larger than that of the upper section of the step hole, a flat steel slot C22 is vertically arranged on the lower punching die C2, corresponding to the upper section of the step hole, and the center of the flat steel slot C22 is located on the axial center line of the step hole C21. The diameter of the lower section of the stepped bore C21 is smaller than the diameter of the piston a 4.

When the punching die is applied, the lower punching die C2 is arranged at the bottom between the two clamping arms of the binding clip A, the upper punching die C1 is sleeved on a bolt rod of the binding clip A3 through a mounting hole at the top of the upper punching die C1, and the lower end of the punching pin C3 is inserted into an upper section hole of the step hole C21.

The punching needle C3 has two specifications, the diameters are respectively 11.5mm and 13.5mm, the punching lower die C2 has two specifications, and the diameter of the upper section hole of the step hole C21 is respectively matched with the diameters of the punching needles with the two specifications.

The scribing is performed by positioning with a punching die, and the positioning diagram is shown in fig. 13 and 14.

As shown in fig. 15, the flat steel bending die D of the tool set includes a lower bending die D1 and an upper bending die D2, the lower bending die D1 includes a U-shaped support D11 and a fixed pulley D12, a pin pad is detachably connected to a center position of the bottom of the U-shaped support, two side arms of the U-shaped support are respectively provided with an upper pulley mounting hole and a lower pulley mounting hole, there are two fixed pulleys D12, and the two fixed pulleys are simultaneously mounted in the pulley mounting holes at opposite positions on the two side arms, and the upper bending die D2 is a pulley which can be mounted on a bolt rod of a binding clip A3.

The pin pad comprises a pin column and a flat base plate at the lower end of the pin column, a limiting bead is arranged on the side wall of the top of the pin column, and a vertical hole for installing the pin column and the limiting bead is arranged at the center of the bottom of the U-shaped support D11. The pin pads have two specifications, namely a thick pin pad D3a and a thin pin pad D3b, the pin columns of the pin pads with the two specifications are the same, the thickness of the flat pad plate is different,

the thick pin pad is used when the flat steel is bent by 90 degrees, and the thin pin pad D3b is used when the flat steel is bent by 135 degrees.

During bending, the stroke of the piston is set to be a fixed value, and the stroke difference of the piston during bending at different angles is adjusted through the pin pad.

The steps of the method for manufacturing the grounding wire down lead by adopting the set of tools are as follows:

step one, connecting a connector of a binding clip with hydraulic equipment, and radially fixing the connector with the hydraulic equipment through a set screw;

secondly, according to the calculated size of the standard diagram, a cutting die B is installed on a binding clip A to cut the lengths of the flat steel on the electric pole and the step respectively;

step three, manufacturing a marking template E, and respectively drawing hole bit lines and bending lines on the two cut flat steels;

fourthly, mounting a flat steel punching die C on the binding clip A to respectively punch two pieces of flat steel on which the wire is drawn;

and fifthly, mounting a flat steel bending die D on the binding clip A to bend the punched flat steel.

The specific operation of the second step is as follows:

the shearing lower die is arranged at the bottom between the two clamping arms of the binding clip, the shearing upper die is limited by a bolt rod of a binding clip bolt, the flat steel is respectively inserted between the cutting edges of the shearing lower die and the shearing upper die, external force is applied to the piston, the piston pushes the shearing lower die to approach the shearing upper die, the cutting edges of the shearing lower die and the shearing upper die shear the flat steel, and the tool slightly vibrates and hears the sound of cutting the flat steel when the flat steel is sheared.

The specific operation of the step four is as follows:

selecting flat steel, determining a flat steel punching die corresponding to the flat steel, placing a lower punching die at the bottom between two clamping arms of a binding clip, inserting the flat steel into a flat steel slot on the lower punching die, enabling a marking line of a hole position to be punched to correspond to the position of a step hole, then sleeving an upper punching die on a bolt rod of a binding clip bolt in a penetrating manner, enabling the lower end of a punching needle to be inserted into an upper section hole of the step hole on the lower punching die, applying external force to a piston, enabling the piston to push the lower punching die to approach the upper punching die until the punching needle passes through the flat steel, and enabling punching residual materials to fall down from a lower section hole of the step hole; when the flat iron is punched, the tool slightly vibrates and the sound of the punched flat iron is heard.

The concrete operation of the step five is as follows:

selecting flat steel, and determining the installation position of a fixed pulley on a bending lower die:

when the fixed flat steel on the step is bent for 90 degrees, the fixed pulleys are installed in a pair of pulley installation holes above the arms on two sides of the U-shaped support, the butt joint end of the fixed angle steel on the step is bent and the fixed flat steel on the electric pole is bent, and the fixed pulleys are all installed in a pair of pulley installation holes below the arms on two sides of the U-shaped support.

The operation of bending to the fixed band steel on the step, it has two angle 90 degrees and 140 degrees of bending, and 140 degrees angle of bending have a pair ofly, to the pole on the downlead preparation band steel, it has a angle 135 degrees of bending, and 135 degrees angles of bending have two pairs, the operation of specifically bending at each angle as follows:

when the bending is performed by 90 degrees, the bottom of the lower bending die is connected with a thick pin pad, the lower bending die is symmetrically arranged at the bottom between the two clamping arms by the two side arms of the U-shaped bracket of the lower bending die about the clamping arms of the binding clip, and the flat steel is flatly arranged on the two fixed pulleys of the lower bending die in a bending line pair, as shown in fig. 16. The bending upper die is replaced by the tong head bolt, external force is applied to the piston, the piston pushes the bending lower die to move upwards through the thick pin pad, the two fixed pulleys of the bending lower die and the tong head bolt simultaneously reversely extrude the flat steel, and the bending angle of the flat steel at the tong head bolt is 90 degrees, as shown in fig. 17. The piston was automatically retracted after 2 seconds of holding.

As shown in fig. 18 to 19, when the first 140 degrees of bending is performed, the thick pin pad is removed first. Then, fixed pulleys are installed in a pair of pulley installation holes below two side arms of the lower bending die, the lower bending die is arranged at the bottom between two clamping arms of the binding clip according to the operation of 90-degree bending, the upper bending die is sleeved on the binding clip bolt in a penetrating mode, the flat steel is arranged on the two fixed pulleys in a centering mode through a bending line, external force is applied to the piston, the stroke of 90-degree bending is kept, the upper bending die and the lower bending die simultaneously extrude the flat steel until the bending angle of the upper bending die is 140 degrees, and the piston automatically retracts after being kept for 2 seconds.

As shown in fig. 20 and 21, during the second 140-degree bending, the flat steel is moved to sleeve the bent angle on one of the fixed pulleys, the same piston stroke is kept, the upper bending die and the lower bending die simultaneously extrude the flat steel until the bending angle of the upper bending die is 140 degrees, and the piston automatically retracts after being kept for 2 seconds;

first pair of 135 degree angle bends:

when the first 135-degree bend is performed, a thin pin pad is connected to the bottom of the lower bending die, and then the operation of the first 140-degree bend is referred to, wherein fig. 22 is a schematic state diagram of the first 135-degree bend during forming; in the second 135-degree bending, referring to the operation in the second 140-degree bending, fig. 23 is a schematic view of the second 135-degree bending;

the second pair of 135 degree angle bends is performed with reference to the first pair.

After the two flat steels are punched and bent at the same angle, the two flat steels are fixed on the pole and the step surface according to the figure 1 and the figure 2.

Claims (9)

1. The utility model provides an electrical equipment earth connection preparation instrument which characterized in that: the flat steel bending machine comprises a binding clip and a flat steel shearing die, a flat steel punching die and a flat steel bending die which are matched with the binding clip.

2. The tool for making an electrical device ground wire of claim 1, wherein: the binding clip includes a connector and a pair of centre gripping arm of connector upper end, and the upper portion of two centre gripping arms is connected with binding clip bolt perpendicularly, and the connector has along its axial direction central internal thread hole, has the piston in the internal thread hole, and piston accessible external force promotes.

3. The tool for making an electrical device ground wire of claim 2, wherein: the side wall of the connector is connected with a radial set screw; one end of the binding clip bolt is provided with a limiting head, and the other end of the binding clip bolt penetrates through the mounting hole on the clamping arm and is embedded with a limiting bead.

4. The tool for making an electrical device ground wire of claim 2, wherein: the flat steel shearing die comprises an upper shearing die and a lower shearing die, wherein a concave-convex matched knife edge is formed in the lower end of the upper shearing die and the upper end of the lower shearing die, a groove is formed in the upper side of the upper shearing die, the lower shearing die and the upper shearing die are arranged between two clamping arms of the binding clip in a knife edge opposite arrangement mode, and a bolt rod of a binding clip bolt is inserted into the groove to enable the upper shearing die to be limited.

5. The tool for making an electrical device ground wire of claim 2, wherein: the flat steel punching die comprises an upper punching die, a lower punching die and a punching needle; a punching needle mounting hole is formed in the center of the bottom surface of the punching upper die, the punching needle is downwards mounted in the hole through a needle rod, a mounting hole of the tong head bolt is formed in the top of the punching upper die, and the mounting hole is perpendicular to the punching needle; the center of the lower punching die is provided with a stepped hole, the diameter of the upper section of the stepped hole is matched with the outer diameter of the punching needle, the diameter of the lower section of the stepped hole is larger than that of the upper section of the stepped hole, a flat steel slot is vertically arranged on the lower punching die corresponding to the upper section of the stepped hole, and the center of the flat steel slot is positioned on the axial center line of the stepped hole.

6. The tool for making an electrical device ground wire of claim 5, wherein: the diameter of the lower section of the stepped hole is smaller than the diameter of the piston, the lower punching die is arranged at the bottom between the two clamping arms of the binding clip, the upper punching die is sleeved on a bolt rod of the binding clip bolt through a mounting hole at the top of the upper punching die, and the lower end of the punching needle is inserted into the upper section hole of the stepped hole.

7. The tool for making an electrical device ground wire of claim 5, wherein: the punching needles have two specifications, the diameters of the punching needles are 11.5mm and 13.5mm respectively, the punching lower die has two specifications, and the diameters of the upper section holes of the stepped holes are matched with the punching needles of the two specifications respectively.

8. The tool for making an electrical device ground wire of claim 2, wherein: the flat steel bending die comprises a bending lower die and a bending upper die, the bending lower die comprises a U-shaped support and two fixed pulleys, a pin pad is detachably connected to the center position of the bottom of the U-shaped support, an upper pulley mounting hole and a lower pulley mounting hole are formed in two side arms of the U-shaped support respectively, the two fixed pulleys are arranged in the pulley mounting holes in the opposite positions on the two side arms, and the bending upper die is a pulley which can be mounted on the binding clip bolt.

9. The tool for making an electrical device ground wire of claim 8, wherein: the pin pad comprises a pin column and a flat base plate at the lower end of the pin column, a limiting bead is arranged on the side wall of the top of the pin column, and a vertical hole for installing the pin column and the limiting bead is arranged at the center of the bottom of the U-shaped support; the pin pads have two specifications, the pin columns of the pin pads are the same, and the thicknesses of the flat pads are different.

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