CN116604442A - Pre-twisted wire end polishing device - Google Patents

Abstract

The invention discloses a preformed armor rod end polishing device which comprises a workbench, a power mechanism, a positioning module and a preformed armor rod supporting platform, wherein the power mechanism and the positioning module are arranged on the workbench; the power mechanism comprises a grinding wheel and a driving device for driving the grinding wheel to rotate; the positioning module positioned obliquely below the grinding wheel is provided with a preformed armor rod end positioning surface and a guide inclined surface which is connected with the lower edge of the preformed armor rod end positioning surface and extends obliquely downwards to be connected with the preformed armor rod supporting platform, and one side of the positioning module on the workbench is provided with a baffle plate for aligning the end faces of a group of preformed armor rods to be ground in advance. The invention solves the problems of low production efficiency, unstable polishing effect on the preformed armor rods and high labor intensity of the existing polishing mode by arranging the positioning module and the preformed armor rods supporting platform, and has the advantages of strong applicability, convenience and rapidness in adjustment and the like.

Description

Pre-twisted wire end polishing device

Technical Field

The invention relates to the field of pre-twisted wire polishing equipment, in particular to a pre-twisted wire end polishing device.

Background

The preformed armor rods, also known as armor rods, are used for overhead power conductors and connecting hardware fittings for power overhead optical cable terminals, suspensions, splices, etc., and are mainly used for protecting power transmission lines and optical cables. Preformed armor rods were first shown in the United states in the 40-50 th century of 20, and the original product was a spiral armor wire for bare wire stress concentration and protection from galvanic corrosion and arc burn-out. Through years of development, the preformed armor rods have been widely applied to the technical field of high-voltage transmission lines.

As shown in fig. 1 to 3, the pre-twisted wire 5 is a product formed by twisting a wire having a certain elasticity in a spiral shape. The diameter of the preformed armor rods 5 themselves represents the thickness of the preformed armor rods, and the diameter of the spiral of the preformed armor rods 5 represents the diameter of the spiral formed by the preformed armor rods 5. The preformed armor rods 5 are typically ground to a circular arc prior to use, i.e., the ends of the preformed armor rods 5 are ground to remove burrs from the ends of the preformed armor rods 5.

For example, chinese patent publication No. CN216830063U discloses a preformed armor rod forming end burr polishing device, which comprises a polishing machine, wherein a polishing disc is fixedly installed on a main shaft of the polishing machine, a plurality of circles of burr grinding grooves are arranged on the circumferential surface of the polishing disc, the central line of the main shaft of the polishing machine is perpendicular to each circle of burr grinding grooves, and the cross section shape of the burr grinding grooves is the same as the transverse cross section shape of the preformed armor rod forming end.

According to the polisher, the working mode of manually polishing by using the file is improved to the mode of polishing at a high speed by using the mechanical polishing disc, so that the working efficiency is improved. However, the polishing mode still completely depends on manual operation to support the preformed armor rods on the polishing disc, so that the polishing amount and the polishing depth are not easy to grasp, and a plurality of preformed armor rods cannot be polished at the same time, namely batch polishing cannot be realized, and therefore, the preformed armor rods are required to be improved.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide the preformed armor rod end polishing device, which not only can enable an operator to conveniently and simultaneously position the ends of a group of preformed armor rods by arranging a positioning module and a preformed armor rod supporting platform which are mutually matched with polishing wheels, but also can finish synchronous polishing of the ends of the group of preformed armor rods by simply pushing and rotating the preformed armor rods, thereby realizing batch operation of polishing the ends of the preformed armor rods, improving the production efficiency, ensuring the polishing quality of the ends of the preformed armor rods, reducing the labor intensity of the operator and ensuring the safety of polishing operation.

In order to achieve the above purpose, the technical scheme of the invention is as follows:

the pre-twisted wire end polishing device comprises a workbench, a power mechanism, a positioning module and a pre-twisted wire supporting platform, wherein the power mechanism and the positioning module are arranged on the workbench, and the pre-twisted wire supporting platform is arranged on the workbench; the power mechanism comprises a driving device and a grinding wheel, and the driving device drives the grinding wheel to rotate for working; the locating module is located obliquely below the polishing wheel, the locating module is provided with a preformed armor rod end locating surface and a guide inclined surface which is connected with the lower edge of the preformed armor rod end locating surface and extends obliquely downwards to be connected with the preformed armor rod supporting platform, and one side of the locating module on the workbench is provided with a baffle used for aligning the end faces of a group of preformed armor rods to be polished in advance.

Further, the preformed armor rods end locating surface is formed by a plane perpendicular to the preformed armor rods supporting platform, and the height of the preformed armor rods end locating surface is smaller than the diameter of the preformed armor rods to be polished.

Further, the height of the lower edge of the preformed armor rods end locating surface is higher than the spiral diameter of the preformed armor rods to be polished.

Further, an adjusting mechanism for adjusting and fixing the position of the positioning module relative to the grinding wheel in the vertical direction and the horizontal direction is arranged on the workbench.

Further, be provided with on the workstation and hold the horizontal slide of location module, adjustment mechanism is provided with position adjustment handle, position adjustment handle is through making the location module slide in the horizontal slide so that it is kept away from or is close to the wheel of polishing.

Further, adjustment mechanism includes the movable support, be provided with vertical slide on the movable support, the locating module sets up on the movable support in the vertical slide and can follow vertical slide reciprocates, be provided with horizontal slide on the workstation, the movable support sets up in the horizontal slide and can follow horizontal slide removes, the position control handle includes horizontal control handle and vertical control handle, horizontal control handle is used for adjusting the transverse position of movable support, vertical control handle is used for adjusting the vertical position of locating module.

Further, the positioning module comprises a positioning module body and a blocking blade, the positioning module body is provided with a guide inclined plane and a containing groove, the blocking blade is contained in the containing groove and can move up and down along the containing groove, the blocking blade and the surface of one side of the guide inclined plane, which is connected with the guide inclined plane, form a preformed armor rod end positioning surface, and a height adjusting handle for adjusting and fixing the position of the blocking blade in the vertical direction is arranged between the positioning module body and the blocking blade.

Further, an included angle alpha between a connecting line between an extension line of the locating surface of the preformed armor rods on the blocking edge and the outer edge of the grinding wheel and the circle center of the grinding wheel and the horizontal direction is 30-60 degrees; and an included angle beta between the tangent line of the end head of the preformed armor rods to be polished and the contact point of the polishing wheel and the guide inclined plane is 55-85 degrees.

Further, the grinding wheel comprises an annular mounting block and an abrasive belt, and the abrasive belt is sleeved on the annular mounting block.

Further, the annular mounting block is made of elastic materials, and a plurality of tensioning grooves with inclination directions matched with the rotation directions of the polishing wheels are formed in the outer circumferential surface of the annular mounting block, and the tensioning grooves tension the abrasive belt when the polishing wheels rotate.

Further, the height adjusting handle is arranged in a plurality along the length direction of the blocking blade.

Further, the included angle between the guide inclined plane and the preformed armor rods supporting plane is not smaller than 20 degrees.

Further, the vertical slideway on the movable support is composed of a guide rail or a guide groove, and the positioning module is provided with a guide groove or a guide rail matched with the guide rail or the guide groove.

Further, the workstation includes polishing table and equipment mount pad, the equipment mount pad sets up the one end of polishing table, power unit the positioning module all sets up on the equipment mount pad, preformed armor rods supporting platform by the table top constitutes of polishing table.

Further, the equipment installation seat is provided with a mounting plate, the mounting plate is fixed with one end of the polishing table, a hand wheel is arranged between the polishing table and the mounting plate, and the position of the equipment installation seat in the vertical direction is adjusted through the hand wheel.

Further, the locating module is provided with a bevel for yielding the working space of the polishing wheel facing to one side of the polishing wheel.

Compared with the prior art, the invention has the following beneficial effects:

(1) The positioning module can simultaneously position and support the ends of a group of preformed armor rods, an operator only needs to push the preformed armor rods arranged in a row on the preformed armor rod supporting platform towards the polishing wheel direction, the ends of the whole group of preformed armor rods can automatically climb along the guiding inclined plane and move and are positioned and supported at the positioning surface of the ends of the preformed armor rods, and meanwhile, the operator can transversely rub the preformed armor rods on the preformed armor rod supporting platform far away from the polishing wheel to rotate, so that polishing of the ends of the whole group of preformed armor rods can be completed rapidly. The polishing efficiency of the preformed armor rods is greatly improved, the polishing quality is ensured, the operation safety of operators is ensured, and the labor intensity of the operators is reduced;

(2) The position of the positioning module can be adjusted through the transverse adjusting handle and the vertical adjusting handle, the position of the blocking blade can be adjusted through the height adjusting handle, and the vertical height of the equipment installation seat can be adjusted through the adjusting screw and the hand wheel, so that the polishing device can polish preformed armor rods with different diameters, the positioning modules with different heights do not need to be replaced, and the practicability of the polishing device is greatly improved;

(3) The abrasive belt is sleeved on the polishing wheel, and the abrasive belt is detachably connected with the polishing wheel, so that the worn abrasive belt can be replaced regularly. The tensioning grooves with the inclination directions on the grinding wheel and the rotation directions of the grinding wheel being matched with each other can be outwards expanded under the action of centrifugal force when the grinding wheel rotates at a high speed, and therefore the abrasive belt is tensioned, and the stability of the abrasive belt position is guaranteed.

(4) Through setting up the baffle on the workstation, make operating personnel can conveniently be through propelling movement operation on preformed armor rods supporting platform can be with the end of a set of preformed armor rods in advance align, for guaranteeing the quality of polishing of every preformed armor rods end and further improve the efficiency of polishing and create the condition.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic illustration of the shape of a single preformed armor rod;

FIG. 2 is a second schematic illustration of the shape of a single preformed armor rod;

FIG. 3 is a schematic view showing a state of a plurality of preformed armor rods arranged in a row;

FIG. 4 is a schematic view showing a state in which a set of preformed armor rods are ground;

FIG. 5 is a schematic view of the polishing apparatus of the present invention with the outer housing removed;

FIG. 6 is a schematic view of the structure of the device mount;

FIG. 7 is a schematic diagram of a power mechanism;

FIG. 8 is a schematic end-face construction of the grinding wheel;

FIG. 9 is a schematic perspective view of a grinding wheel;

FIG. 10 is a schematic view of the structure of the adjusting mechanism and the positioning module;

FIG. 11 is a second schematic diagram of the structure of the adjusting mechanism and the positioning module;

FIG. 12 is a schematic view of the structure of the lateral slide on the device mount;

FIG. 13 is a schematic view of the structure of the movable bracket;

FIG. 14 is a schematic diagram of a positioning module;

FIG. 15 is a second schematic diagram of a positioning module;

FIG. 16 is a schematic view of the relationship between the positioning module and the grinding wheel when the positioning module is adjusted to the rightmost end of the transverse slideway;

fig. 17 is a schematic diagram showing the positional relationship between the positioning module and the grinding wheel when the positioning module is adjusted to the leftmost end of the transverse slideway.

In the figure: 1. polishing a table; 11. a table leg; 12. a tabletop; 2. an equipment mounting seat; 21. a fixed rod; 22. a mounting plate; 23. a support plate; 231. a baffle; 232. a transverse slideway; 3. a power mechanism; 31. a motor; 311. a motor pulley; 32. a drive belt; 33. rotating the main shaft; 331. a spindle pulley; 34. a bearing seat; 35. grinding wheel; 351. an annular mounting block; 3511. a tensioning groove; 352. abrasive belt; 4. a protective assembly; 41. a belt protective housing; 42. a spindle guard housing; 43. grinding wheel protective shell; 44. a flying chip collecting tank; 5. pre-twisting the wire; 6. an adjusting mechanism; 61. a movable bracket; 611. a guide rail; 62. a positioning module body; 621. a guide groove; 622. a receiving groove; 623. a guide slope; 63. a blocking blade; 631. pre-twisting the end positioning surface of the wire; 64. a lateral adjustment handle; 65. a vertical adjustment handle; 66. a height adjustment handle; 67. a hand wheel; 68. a locking bolt.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention.

The embodiments of the present invention and the features of the embodiments may be combined with each other without any conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in figures 4-7, the pre-twisted wire end polishing device comprises a workbench, a power mechanism 3 and a positioning module which are arranged on the workbench, and a pre-twisted wire supporting platform arranged on the workbench.

The workstation is including being used for supporting the desk 1 and the equipment mount pad 2 of preformed armor rods 5, and equipment mount pad 2 sets up the one end at desk 1 of polishing, and power unit 3, positioning module all set up on equipment mount pad 2.

The positioning module is positioned between the power mechanism 3 and the preformed armor rods supporting platform. The positioning module is provided with a preformed armor rod end positioning surface 631 and a guide inclined surface 623 which is connected with the lower edge of the preformed armor rod end positioning surface 631 and extends obliquely downwards to be connected with the preformed armor rod supporting platform.

The equipment installation seat 2 comprises a vertically arranged installation plate 22 and a horizontally arranged support plate 23, and the top of the installation plate 22 and the bottom of the support plate 23 can be welded and fixed or integrally formed.

The power mechanism 3 includes a grinding wheel 35 and a driving device for driving the grinding wheel 35 to rotate, in the present invention, the driving device is a motor 31.

The output shaft of the motor 31 is coaxial with the motor pulley 311 and drives the motor pulley 311 to rotate; grinding wheel 35 is coaxial with rotating spindle 33 and a spindle pulley 331 is provided at an end of rotating spindle 33 remote from grinding wheel 35. The motor pulley 311 and the main shaft pulley 331 are synchronously rotated by two transmission belts 32.

Two bearing seats 34 which are arranged at intervals are further arranged between the main shaft belt pulley 331 and the grinding wheel 35 to reduce vibration, and bearings are arranged between the rotating main shaft 33 and the bearing seats 34 to enable the rotating main shaft 33 to stably drive.

The pre-twisted wire end polishing device is also provided with a protection component 4. The protection assembly 4 comprises a belt protection shell 41 arranged on the periphery of the transmission belt 32, the motor pulley 311 and the main shaft pulley 331, a main shaft protection shell 42 arranged on the periphery of the two bearing seats 34, a grinding wheel protection shell 43 arranged on the periphery of the grinding wheel 35, and a flying dust collecting groove 44 arranged on the supporting plate 23 and positioned right below the grinding wheel 35. Wherein, the belt protective shell 41, the main shaft protective shell 42 and the grinding wheel protective shell 43 can effectively prevent workers from accidentally touching the parts of the power mechanism 3 to cause accidental injury; in actual use, the collecting pipe is also connected to the lower end of the flying chip collecting groove 44 to collect flying chips and dust gravel generated in the process of polishing the preformed armor rods 5 in a concentrated manner, so as to prevent pollution caused by falling onto the motor 31 or in a workshop.

The polishing table 1 is composed of four table legs 11 and a table top 12, the length of the table top 12 is not smaller than that of the preformed armor rods 5, so that an operator can conveniently push the preformed armor rods 5 to the polishing wheel 35 for polishing, and a preformed armor rod supporting platform is composed of the table top 12 of the polishing table 1.

An equipment installation seat 2 is fixed on one side of the polishing table 1, and the height of the polishing table 1 is matched with the height of the equipment installation seat 2. Specifically, four long holes are respectively formed in positions, corresponding to the table legs 11 of the polishing table 1, on the mounting plate 22, and bolts sequentially penetrate through the long holes and the table legs 11 of the polishing table 1 and are screwed and fixed, so that the equipment mounting seat 2 is fixed on the side face of the polishing table 1.

A baffle 231 is fixed on one side of the positioning module on the support plate 23, and is used for aligning the end faces of a group of preformed armor rods 5 to be polished in advance.

The baffle 231 is located on the side of the equipment mount 2 near the polishing table 1 and the height of the baffle 231 is higher than the height of the table top 12 of the polishing table 1. When polishing a plurality of preformed armor rods 5 simultaneously, an operator can first press the ends of all preformed armor rods 5 against the baffle 231 so that the ends of all preformed armor rods 5 are aligned and then polish all preformed armor rods 5 simultaneously. The mode not only realizes a batch operation mode of polishing a plurality of preformed armor rods 5 simultaneously, but also has the same polishing amount and polishing depth for each preformed armor rod 5, and further improves polishing quality and polishing efficiency.

The equipment installation seat 2 further comprises a fixing rod 21, and the fixing rod 21 is horizontally fixed on two table legs 11 on one side of the polishing table 1, on which the equipment installation seat 2 is installed.

The pre-twisted wire end polishing device also comprises an adjusting mechanism 6 arranged on the equipment installation seat 2. The adjusting mechanism 6 comprises a hand wheel 67, and a hand wheel shaft on the hand wheel 67 vertically penetrates through the fixed rod 21 and is in threaded fit with the fixed rod 21, and the top end of the hand wheel shaft abuts against the bottom of the mounting plate 22.

When the position of the equipment installation seat 2 in the vertical direction needs to be adjusted, all bolts penetrating through the long holes and the table legs 11 are loosened, and then the hand wheel 67 is rotated to adjust the height of the whole equipment installation seat 2, and the length of the long holes in the installation plate 22 is the adjustment range of the height of the equipment installation seat 2.

As shown in fig. 8 and 9, the grinding wheel 35 comprises an annular mounting block 351 and an abrasive belt 352 sleeved on the annular mounting block 351, namely, the abrasive belt 352 is detachably connected with the annular mounting block 351 so as to replace the worn abrasive belt 352 periodically; on the other hand, compared with the technical scheme of sleeving the abrasive belt 352 on the two polishing wheels 35, the abrasive belt 352 is directly sleeved on one polishing wheel 35, so that the phenomenon of deviation between the abrasive belt 352 and the polishing wheel 35 is effectively prevented.

The annular mounting block 351 is a circular cylindrical structure and is made of an elastic material, such as a rubber material. The outer edge of the annular mounting block 351 is divided into a plurality of tensioning grooves 3511 with inclination directions matched with the rotation directions of the grinding wheels 35, and when the grinding wheels 35 rotate at high speed, the mutually independent tensioning grooves 3511 can expand outwards under the action of centrifugal force, so that the abrasive belt 352 sleeved on the annular mounting block 351 can be tensioned.

As shown in fig. 6 and fig. 10 to 15, the adjusting mechanism 6 further includes a movable bracket 61 and a position adjusting handle, and the positioning module includes a positioning module body 62 and a blocking blade 63, and the positioning module body 62 is located on the movable bracket 61.

The movable support 61 has a plate-shaped structure, and a vertical slideway is arranged on the movable support 61. In the present embodiment, the vertical slide is composed of one guide rail 611 provided on both sides of the movable bracket 61 in the vertical direction. The two sides of the positioning module body 62 are respectively provided with a guide groove 621 at the positions corresponding to the guide rail 611, and the shape and the size of the guide rail 611 are matched with those of the guide grooves 621, so that the positioning module body 62 can move up and down along the guide rail 611.

The support plate 23 is provided with a transverse slideway 232 for accommodating the movable bracket 61 and the positioning module body 62, so that the positioning module body 62 and the movable bracket 61 are both positioned obliquely below the grinding wheel 35 and can reciprocate along the transverse slideway 232.

The position adjustment handle is used to adjust the position of the positioning module body 62 within the transverse slideway 232 and to bring the positioning module body 62 closer to or farther away from the grinding wheel 35.

The position adjusting handle comprises a transverse adjusting handle 64, the transverse adjusting handle 64 penetrates through the supporting plate 23 and is in threaded fit with the supporting plate 23, one end of the transverse adjusting handle 64, which faces the movable support 61, is fixedly clamped with the movable support 61, so that the movable support 61 can be driven to reciprocate in the transverse slideway 232 by rotating the transverse adjusting handle 64, and the positioning module body 62 can synchronously move along with the movable support 61 in the transverse slideway 232.

The position adjusting handle further comprises a vertical adjusting handle 65, the vertical adjusting handle 65 penetrates through the movable support 61 and is in threaded fit with the movable support 61, and the top of the vertical adjusting handle 65 is fixedly clamped with the positioning module body 62, so that the positioning module body 62 can be driven to reciprocate along the guide rail 611 in the vertical direction by rotating the vertical adjusting handle 65.

The positioning module body 62 is further provided with a receiving groove 622 for receiving the blocking blade 63 and a guiding inclined plane 623. The guiding inclined plane 623 is the upper surface of the positioning module body 62, the guiding inclined plane 623 has supporting and guiding functions to the end position of the preformed armor rods 5, and in the process of pushing the preformed armor rods 5 by an operator, the end of the preformed armor rods 5 ascends along the guiding inclined plane 623 on the positioning module body 62 into an obtuse angle space formed by the positioning module body 62 and the blocking blade 63 and abuts against the obtuse angle space. In practical use, the inclination angle between the guiding inclined plane 623 of the positioning module body 62 and the horizontal plane is not smaller than 20 degrees, and in this embodiment, the inclination angle of the guiding inclined plane 623 is preferably 30 degrees.

The blocking blade 63 has a long plate structure, and the blocking blade 63 is inserted into the accommodating groove 622 on the positioning module body 62 and can move up and down along the accommodating groove 622.

The top of the blocking edge 63 protrudes out of the positioning module body 62, and an inclined plane is arranged at the top of the blocking edge 63 at one side facing the grinding wheel 35, so that interference phenomenon between the blocking edge 63 and the grinding wheel 35 when the blocking edge 63 is close to the grinding wheel 35 is avoided.

The position adjustment handle further includes a plurality of height adjustment handles 66 uniformly arranged along the length direction of the blocking blade 63. The height adjusting handle 66 passes through the movable bracket 61 and the positioning module body 62 and is screw-fitted with the movable bracket 61 or the positioning module body 62. The top of the height adjusting handle 66 abuts against the bottom of the blocking blade 63, so that the vertical height of the blocking blade 63 in the accommodating groove 622 can be adjusted by rotating the height adjusting handle 66.

In this embodiment, the two height adjustment handles 66 are uniformly disposed along the length direction of the blocking edge 63, and the two height adjustment handles 66 jointly adjust the vertical height of the blocking edge 63 in the accommodating groove 622.

The surface of the blocking edge 63 on the side connected with the guiding inclined plane 623 is the preformed armor rod end locating surface 631. The preformed armor rod end locating surface 631 is perpendicular to the preformed armor rod support platform. The height of the preformed armor rod end locating surface 631 is less than the diameter of the preformed armor rod 5 to be polished, and the lower edge of the preformed armor rod end locating surface 631 is higher than the spiral diameter of the preformed armor rod 5 to be polished.

The adjusting mechanism 6 further includes a locking bolt 68, wherein the locking bolt 68 penetrates through the side wall of the movable bracket 61 and is in threaded engagement with the movable bracket 61, and one end of the locking bolt 68 facing the positioning module body 62 abuts against the side wall of the positioning module body 62. After the relative position between the movable support 61 and the positioning module body 62 is adjusted, the locking bolt 68 can be screwed to prevent relative sliding or vibration between the movable support 61 and the positioning module body 62 during polishing, so that the positioning module body 62 and the movable support 61 are tightly attached.

In practical use, in order to adapt to preformed armor rods 5 with different diameters, the adjusting mechanism 6 can adjust the positions of the positioning module body 62 and the blocking blade 63, so that the positioning module body 62 and the blocking blade 63 can be in the following two extreme working positions:

as shown in fig. 16, when the diameter of the preformed armor rods 5 is minimum and the diameter of the spiral of the preformed armor rods 5 themselves is also minimum:

because the diameter of the spiral of the preformed armor rods 5 is the smallest, i.e. the height of the top of the preformed armor rods 5 is the lowest, in order to adapt to the height of the top of the preformed armor rods 5, and at the same time, the end of the preformed armor rods 5 extending below the grinding wheel 35 is moderately ground, so that the height of the positioning module body 62 needs to be reduced to match with the height; because the diameter of the preformed armor rods 5 is also minimum, in order to ensure that the end portion of the preformed armor rods 5 can be clamped inside the obtuse angle space formed by the blocking blade 63 and the positioning module body 62, and the top of the preformed armor rods 5 can contact the grinding wheel 35, the height of the blocking blade 63 needs to be reduced.

After lowering the height of the positioning module body 62 and the blocking blade 63, the distance between the end of the preformed armor rods 5 and the grinding wheel 35 directly above the preformed armor rods is increased, so that the preformed armor rods 5 can contact the grinding wheel 35, and the positioning module body 62 needs to be adjusted to the leftmost end in the adjustable range of the support plate 23. At this time, an included angle alpha 1 between a connecting line between an upward extension line of the preformed armor rod end locating surface 631 on the blocking blade 63 and the outer edge of the grinding wheel 35 and the center of the grinding wheel 35 and the horizontal direction is 60 degrees; the angle beta 1 between the tangent line of the point of contact of the preformed armor rods 5 with the grinding wheel 35 and the guiding ramp 623 on the positioning module body 62 is 55 degrees.

In this embodiment, the rotation direction of the grinding wheel 35 is clockwise, so that the grinding wheel 35 can press the end portion of the preformed armor rods 5 in the obtuse angle space formed by the blocking edge 63 and the guiding inclined plane 623 when grinding the preformed armor rods 5, and prevent the end portion of the preformed armor rods 5 from tilting upward when the preformed armor rods 5 axially rotate along their own helical axes.

As shown in fig. 17, when the diameter of the preformed armor rods 5 is maximum and the diameter of the spiral of the preformed armor rods 5 themselves is also maximum:

because the diameter of the spiral of the preformed armor rods 5 is the largest, i.e. the height of the top of the preformed armor rods 5 is the highest, in order to adapt to the height of the top of the preformed armor rods 5, and prevent the preformed armor rods 5 from being excessively polished after extending below the polishing wheel 35, the height of the positioning module body 62 needs to be raised to match with the height; because the diameter of the preformed armor rods 5 is also the largest, in order to ensure that the end portions of the preformed armor rods 5 can be clamped in the obtuse angle space formed by the blocking edge 63 and the positioning module body 62, the height of the blocking edge 63 needs to be increased.

Before raising the heights of the positioning module body 62 and the blocking blade 63, in order to avoid interference between the blocking blade 63 and the positioning module body 62 and the grinding wheel 35, the positioning module body 62 needs to be adjusted to the rightmost end in the adjustable range on the support plate 23. At this time, an included angle alpha 2 between a connecting line between an upward extension line of the preformed armor rod end locating surface 631 on the blocking blade 63 and the outer edge of the grinding wheel 35 and the center of the grinding wheel 35 and the horizontal direction is 30 degrees; the angle beta 2 between the tangent line of the point of contact of the preformed armor rods 5 with the grinding wheel 35 and the guide slope 623 on the positioning module body 62 is 85 degrees.

In summary, when polishing the preformed armor rods 5 with different diameters and different spiral diameters, the positions of the positioning module body 62 and the blocking blade 63 need to be adjusted correspondingly. In the adjusting process, the adjusting range of the included angle alpha between the connecting line between the upward extension line of the preformed armor rod end locating surface 631 on the blocking blade 63 and the outer edge of the grinding wheel 35 and the circle center of the grinding wheel 35 and the horizontal direction is 30-60 degrees; the angle beta between the tangent line of the point of contact of the preformed armor rods 5 with the grinding wheel 35 and the guide slope 623 on the positioning module body 62 is adjusted in the range of 55 degrees to 85 degrees.

The implementation principle of the embodiment is as follows:

when the preformed armor rods 5 are polished, the positions of the positioning module body 62 and the blocking blade 63 are adjusted according to the diameter of the preformed armor rods 5 and the spiral diameter of the preformed armor rods 5, and after the positions of the positioning module body 62 and the blocking blade 63 are adjusted by rotating the transverse adjusting handle 64, the vertical adjusting handle 65 and the height adjusting handle 66, the locking bolt 68 is screwed. A plurality of preformed armor rods 5 with the same diameter and the same spiral diameter are simultaneously placed on the polishing table 1, and all preformed armor rods 5 are pushed and the ends of all preformed armor rods 5 are abutted against the baffle 231 while all preformed armor rods 5 are pressed on the polishing table 1, so that the end heads of all preformed armor rods 5 are all aligned. Thereafter, all the pre-twisted wires 5 are pushed obliquely toward the grinding wheel 35. Because the portion of the preformed armor rods 5 far from the end portion is pressed on the polishing table 1 by the operator, the end portion of the preformed armor rods 5 will climb along the guiding inclined plane 623 on the positioning module body 62 under the elastic action of the preformed armor rods 5 and the pushing of the operator to the obtuse angle space formed by the end portion abutting against the blocking blade 63 and the positioning module body 62. Thereafter, during the polishing of the preformed armor rods 5 by the polishing wheel 35, the operator may axially rotate the preformed armor rods 5 along the self-helical axis while pressing the preformed armor rods 5. Because the grinding wheel 35 presses the end part of the preformed armor rods 5 in the obtuse angle space formed by the blocking edge 63 and the positioning module body 62, the end part is prevented from tilting upwards, and the end part of the preformed armor rods 5 is sufficiently and uniformly ground.

It should be noted that although the preferred embodiment of the present invention has been described, the positioning module including the positioning module body 62 and the blocking edge 63 may be integrally formed, and the positioning module body 62 and the blocking edge 63 are adjusted according to the diameter of the preformed armor rods 5 and the diameter of the spiral of the preformed armor rods 5 according to the preferred embodiment to match positioning modules with different sizes, so that when a group of preformed armor rods 5 is operated, batch operation can be performed on the preformed armor rods 5 only by replacing the adapted positioning module, and polishing of the ends of the preformed armor rods 5 can be completed rapidly.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (10)

1. The pre-twisted wire end polishing device is characterized by comprising a workbench, a power mechanism (3) arranged on the workbench, a positioning module and a pre-twisted wire supporting platform arranged on the workbench, wherein the positioning module is positioned between the power mechanism (3) and the pre-twisted wire supporting platform; the power mechanism (3) comprises a driving device and a polishing wheel (35), and the driving device drives the polishing wheel (35) to work in a rotating way; the locating module is located obliquely below the polishing wheel (35), a preformed armor rod end locating surface (631) and a guide inclined surface (623) which is connected with the lower edge of the preformed armor rod end locating surface (631) and extends obliquely downwards to be connected with the preformed armor rod supporting platform are arranged on the locating module, and a baffle (231) for aligning the end faces of a group of preformed armor rods (5) to be polished is arranged on one side of the locating module on the workbench.

2. The pre-twisted wire end grinding device according to claim 1, characterized in that the pre-twisted wire end positioning surface (631) is formed by a plane perpendicular to the pre-twisted wire support platform, and that the height of the pre-twisted wire end positioning surface (631) is smaller than the diameter of the pre-twisted wire (5) to be ground.

3. The pre-twisted wire end grinding device according to claim 2, characterized in that the lower edge of the pre-twisted wire end positioning surface (631) is higher than the spiral diameter of the pre-twisted wire (5) to be ground.

4. The pre-twisted wire end polishing device according to claim 1, wherein an adjusting mechanism (6) for adjusting and fixing the position of the positioning module relative to the vertical direction and the horizontal direction of the polishing wheel (35) is arranged on the workbench.

5. The pre-twisted wire end grinding device according to claim 4, characterized in that the workbench is provided with a transverse slideway (232) for accommodating the positioning module, and the adjusting mechanism (6) is provided with a position adjusting handle, and the position adjusting handle enables the positioning module to be far away from or close to the grinding wheel (35) by sliding in the transverse slideway (232).

6. The pre-twisted wire end polishing device according to claim 4, wherein the adjusting mechanism (6) comprises a movable support (61), a vertical slide way is arranged on the movable support (61), the positioning module is arranged in the vertical slide way on the movable support (61) and can move up and down along the vertical slide way, a transverse slide way (232) is arranged on the workbench, the movable support (61) is arranged in the transverse slide way (232) and can move along the transverse slide way (232), the position adjusting handle comprises a transverse adjusting handle (64) and a vertical adjusting handle (65), the transverse adjusting handle (64) is used for adjusting the transverse position of the movable support (61), and the vertical adjusting handle (65) is used for adjusting the vertical position of the positioning module.

7. The pre-twisted wire end polishing device according to claim 1, wherein the positioning module comprises a positioning module body (62) and a blocking blade (63), the positioning module body (62) is provided with the guide inclined surface (623) and a containing groove (622), the blocking blade (63) is contained in the containing groove (622) and can move up and down along the containing groove (622), a surface of one side, which is connected with the guide inclined surface (623), of the blocking blade (63) forms the pre-twisted wire end positioning surface (631), and a height adjusting handle (66) for adjusting and fixing the position of the blocking blade (63) in the up-down direction is arranged between the positioning module body (62) and the blocking blade (63).

8. The pre-twisted wire end polishing device according to claim 7, wherein an included angle alpha between a connecting line between an upward extension line of the pre-twisted wire end locating surface (631) on the blocking blade (63) and the outer edge of the polishing wheel (35) and the center of the polishing wheel (35) and the horizontal direction is 30-60 degrees; the included angle beta between the tangent line of the contact point of the end of the preformed armor rods (5) to be polished and the polishing wheel (35) and the guiding inclined plane (623) is 55-85 degrees.

9. The pre-twisted wire end grinding device according to claim 1, characterized in that the grinding wheel (35) comprises an annular mounting block (351) and an abrasive belt (352), and the abrasive belt (352) is sleeved on the annular mounting block (351).

10. The pre-twisted wire end grinding device according to claim 9, wherein the annular mounting block (351) is made of an elastic material, and a plurality of tensioning grooves (3511) with inclination directions matched with the rotation directions of the grinding wheels (35) are formed in the outer circumferential surface of the annular mounting block (351), and the tensioning grooves (3511) tension the abrasive belt (352) when the grinding wheels (35) rotate.